32results about How to "Easy draft" patented technology

The invention discloses an anti-blocking type mould and a production process for the mould, and relates to the technical field of foam-plastic forming. The anti-blocking type mould comprises an uppermould and a lower mould, wherein the upper mould and the lower mould are mutually matched to form a forming cavity; and a plurality of strip-shaped seams for allowing steam to enter the forming cavityare formed in the upper mould. The anti-blocking type mould solves the problem that needle eye shaped gas inlets of the conventional mould are easily blocked to affect use when high-temperature steampasses through the mould for foaming and forming foam-plastic particles, can prolong continuous working time of the mould, reduces labor intensity of maintaining the mould, and increases a productionrate.

The invention provides a core inserter drawing device, which comprises a base, two articulation pieces, two actuating rods and a drawing rod, wherein the two articulation pieces are arranged on the base in a sliding mode; each actuating rod is provided with opposite first and second end parts; the first end parts of the two actuating rods are articulated with one articulation piece; the second end parts of the two actuating rods are articulated with the drawing rod; the two actuating rods move relatively through the sliding of the two articulation pieces ; the two actuating rods are positioned on two opposite sides of the drawing rod; and the drawing rod moves with the relative movement of the two actuating rods in a direction perpendicular to the sliding direction of the articulation pieces. The core insert drawing device adopting a technical proposal brings workers the convenience of drawing a core insert from a mould.

The invention discloses a lens for increasing a spacing height ratio and improving the illumination uniformity of a light emitting diode (LED) lamp, which consists of seven transmission surfaces. The first, third and sixth refracting surfaces form the incident surface of the lens, and the second, fifth and seventh refracting surfaces form the emergent surface of the lens. Parallel light rays emitted from the second and fifth refracting surfaces are used for far-field small-angle illumination, and nonparallel light rays emitted from the seventh refracting surfaces are used for near-field wide-angle illumination. The lens provided by the invention can combine rear-field and near-field illumination and achieve high illumination uniformity, so that the lamp can be used at a high spacing height ratio without producing glare.

The invention belongs to the field of labor insurance product manufacturing, and specifically relates to a demoulding device for labor insurance gloves, which includes a draft box, and a demoulding module is arranged inside the demoulding box, and the upper surface of the demoulding module is in contact with the drafting box. The top of the inner wall of the mold box is fixedly connected, and the two ends of the demoulding module all extend to the outside of the drafting box, and the two ends of the inner wall of the demoulding module are all rotatably connected with a rotating motor. An air vent is opened in the middle part, and an air intake pipe is fixedly connected to the middle part of the inner cavity of the draft box. Compared with the traditional manual drafting, the efficiency of using this device for batch glove drafting is significantly higher, and during the working process of the device, only manual loading and unloading is required, which effectively improves the glove drafting efficiency. The speed saves human resources. Compared with ordinary devices, this device can draft gloves in large quantities, and has a high degree of automation, simple operation, and more market prospects.

The invention discloses a throttle valve structure, which comprises a valve body (1). A central hole of the valve body (1) consists of an inlet cone section (1a), a transition section (1b) and an outlet cone section (1c), wherein the transition section (1b) is a unidiameter straight section and is positioned between the inlet cone section (1a) and the outlet cone section (1c); the inlet cone section (1a) and the outlet cone section (1c) both have a bell-mouth structure; the length of the inlet cone section (1a) is between 11 and 17 millimeters, and the conical degree is between 5 and 8 degrees; and the length of the outlet cone section (1c) is between 17 and 23 millimeters, and the taper is between 3 and 6 degrees. The throttle valve structure meets the requirements of the air inlet speedand air inflow of small-displacement engines by changing a structure of the central hole of the valve body, and has the characteristics of ingenious design, simple structure, easy machining, strong generality and the like.

The invention belongs to the field of automobile part production and processing and particularly relates to a demolding mechanism comprising an upper mold plate and a lower mold plate which are arranged in the vertical direction in an open-close mode. A mandrel for forming a sand mold center runner is arranged in the center of the lower mold plate. The mandrel and a core hole formed in the centerof the lower mold plate are in sliding fit in the vertical direction, and a first elastic unit is arranged between the mandrel and the lower mold plate and is used for driving the mandrel to pop up relative to the lower mold plate. The side wall of the mandrel is further provided with an annular groove. A clamping plate arranged slidably in the radial direction of the mandrel is arranged in the lower mold plate. A second elastic unit is arranged between the clamping plate and the lower mold plate. A telescopic airbag is further arranged between the clamping plate and the lower mold plate. According to the demolding mechanism, the mandrel is of an elastic structure, the lower mandrel is flush with the surface of molding sand during sand spreading so as to ensure the pass-through longitudinal runner, in addition, in the extrusion forming process, the mandrel contracts downwards under extrusion of a pressing column, the mandrel and the pressing column achieve mold opening to the upper andlower sides correspondingly during mold opening, the mold opening stroke of the mandrel is reduced, and mold pulling is facilitated better.

The invention provides a quick withdrawing mold. The quick withdrawing mold comprises a stepped shaft workpiece. The quick withdrawing mold further comprises a first mold body, a second mold body, a third mold body and a knocking mechanism which are sequentially connected. The first mold body, the second mold body and the third mold body are sequentially provided with a first mold cavity, a second mold cavity and a third mold cavity correspondingly. The second mold cavity and the third mold cavity communicate with each other and then are matched with the stepped shaft workpiece. The first mold cavity corresponds to the second mold cavity. The third mold cavity further comprises a knocking mechanism stretching hole, and the knocking portion of the knocking mechanism is located in the knocking mechanism stretching hole, corresponds to the third mold cavity and can knock the stepped shaft workpiece. A first spring is arranged in the second mold cavity and connected with a buffer plate. According to the quick withdrawing mold, the second mold cavity and the third mold cavity communicate with each other and then form a continuously-through mold cavity body, and pouring liquid is poured into the mold cavity body so that the stepped shaft workpiece can be formed. After the stepped shaft workpiece is formed and cooled, the right end of the stepped shaft workpiece is continuously knocked with the knocking mechanism, and accordingly the stepped shaft workpiece can be squeezed out of the left end of the second mold cavity quickly.

The invention provides a core inserter drawing device, which comprises a base, two articulation pieces, two actuating rods and a drawing rod, wherein the two articulation pieces are arranged on the base in a sliding mode; each actuating rod is provided with opposite first and second end parts; the first end parts of the two actuating rods are articulated with one articulation piece; the second end parts of the two actuating rods are articulated with the drawing rod; the two actuating rods move relatively through the sliding of the two articulation pieces ; the two actuating rods are positioned on two opposite sides of the drawing rod; and the drawing rod moves with the relative movement of the two actuating rods in a direction perpendicular to the sliding direction of the articulation pieces. The core insert drawing device adopting a technical proposal brings workers the convenience of drawing a core insert from a mould.