Double-injection mold mechanism

Abstract

The invention relates to a double-injection mold mechanism, which comprises a floating limiting block with a clamping block arranged at one end and used for fixing an elastic pin and a boss arranged on one side, and the clamping block of the floating limiting block can be withdrawn from the elastic pin when a sliding block deflector rod downwards presses the boss; the elastic pin fixing block is movably provided with an elastic pin through an elastic piece, and the elastic pin can move into the elastic pin fixing block under the extrusion of the first shooting elastic pin reset rod and can move into the clamping groove of the sliding block shifting rod under the action of the second shooting sliding block shifting rod; the elastic pin reset rod can extrude the elastic pin through one end, so that the elastic pin moves into the elastic pin fixing block; the sliding block shifting rod is provided with a groove and a clamping groove, and the elastic pin can move into the clamping groove of the sliding block shifting rod under the action of the elastic piece under the action that the sliding block shifting rod downwards presses the boss of the floating limiting block, so that a sliding block mechanism which does not retreat at one time and retreats at two times is achieved through the components, and the mold mechanism is simple, compact in connection, small in needed installation space and high in practicability. The size of the required sliding block is reduced, so that the size of the mold is reduced, and the cost is reduced.

Description

[Technical field]

[0001] The invention relates to the technical field of mold mechanisms, in particular to a double-shot mold mechanism. [Background technology]

[0002] Double-shot molds often have a slider mechanism in which the male mold slider does not retract once but retracts twice. In this mechanism, the slider is the undercut of the first shot, and at the same time, it plays the role of fixing the first shot product and blocking the second shot soft glue in the second shot. This requires the slider to be closed in the second shot, because if the slider is opened in the first shot and closed again in the second shot, the slider will scrape the already formed product. Therefore, it is necessary to set the slider on the male mold to be immovable after the first shot molding, and to move and reset after the second shot is completed.

[0003] In order to ensure that the slider does not move when the mold is opened in the first shot, the currently designed structure is relatively complex and requires many components, resulting in the slider in the second-time withdrawal structure of the male mold being larger and thicker than the ordinary male mold slider. Therefore, it will cause the mold structure to be complex and occupy a large space. However, the simpler mechanism has poor stability and requires frequent mold repairs.

[0004] In view of this, it is necessary to develop a double-shot mold mechanism to solve the above technical problems. [Summary of the invention]

[0005] The technical problem to be solved by the present invention is that the slider in the male mold slider mechanism of the current double-shot mold is larger and thicker than the slider of the common male mold, which leads to the problems of complex mold mechanism and large space occupation, while the relatively simple mechanism has poor stability and requires frequent mold repair. Therefore, the present invention provides a double-shot mold mechanism to solve the above problems.

[0006] The present invention solves the technical problem by providing a double-shot mold mechanism, comprising:

[0007] The male template includes: a bottom wear-resistant plate, a positioning block, a slider seat, a floating limit block, and a spring pin fixing block; wherein,

[0008] A bottom wear-resistant plate, wherein the bottom wear-resistant plate is fixed in the male mold plate through a fixing member, and a through hole is provided on the bottom wear-resistant plate, and the through hole is used for the movement of the positioning block;

[0009] A positioning block, one end of which is fixed in the male mold plate by an elastic member, and the other end of which passes through the through hole of the bottom wear-resistant plate and is located in the positioning hole of the slider seat, and the positioning block is used to position the slider seat when the male mold plate rotates;

[0010] A slider seat, the slider seat is movably arranged in the male template, a positioning hole is provided on one side of the slider seat, the positioning hole is used to position the slider seat under the action of the positioning block and the elastic member when the male template rotates, a pressing plate is fixed on the slider seat, an elastic member is provided on the pressing plate, and the elastic member is used for the movement of the floating limit block;

[0011] A floating limit block, wherein the floating limit block moves on the pressure plate through an elastic member, a clamping block is provided at one end of the floating limit block, and the clamping block is used to fix the elastic pin, and a boss is provided on one side of the floating limit block. When the two-shot mold is closed, the slider lever can press down the boss to move the clamping block of the floating limit block to the exit elastic pin;

[0012] An elastic pin fixing block, wherein the elastic pin fixing block is fixed to one side of the slider seat through a fixing piece, an elastic pin is movably arranged in the elastic pin fixing block through an elastic piece, and a base is arranged at one end of the elastic pin connected to the elastic piece. When the mold is closed in one shot, the base moves to the block of the floating limit block under the action of the elastic pin reset rod and the elastic piece; when the mold is closed in two shots, the elastic pin moves to the slot of the slider lever through the elastic piece under the action of the boss of the floating limit block pressed down by the slider lever;

[0013] The mother template includes: a first-shot mother template and a second-shot mother template; wherein,

[0014] A shot nut template, wherein the shot nut template is fixed with an elastic pin reset rod through a fixing member, and the elastic pin reset rod can squeeze the elastic pin through one end during the first shot mold closing, so that the elastic pin moves into the elastic pin fixing block under the action of the elastic member;

[0015] The two-shot mother template is fixed with a slider lever through a fixing part. One end of the slider lever is provided with a groove and a slot. The groove can press down the boss of the floating limit block during the two-shot mold closing, so that the spring pin moves into the slot of the slider lever under the action of the elastic part.

[0016] Preferably, the fixing member may be a screw.

[0017] Preferably, the positioning block is a positioning block with one side in an inverted "V" shape.

[0018] Preferably, the elastic member may be a spring.

[0019] Preferably, the floating limit block, the elastic pin fixing block and the elastic pin may be provided in two groups, which are used for the elastic pin to move into the slots on both sides of the slider rod during the second-shot mold closing, so as to balance the pulling force of the slider rod when the slider rod pulls the elastic pin to move during the second-shot mold opening.

[0020] The beneficial effects of the present invention are as follows: the present invention is a double-shot mold mechanism, in which the spring pin reset rod squeezes the spring pin during the first shot mold closing, so that the spring pin moves into the spring pin fixing block under the action of the elastic member, and the spring pin is fixed under the clamping block of the floating limit block, that is, the spring pin reset rod moves alone during the first shot mold opening; in the second shot mold closing, the groove of the slider lever presses down the boss of the floating limit block, so that the spring pin moves into the clamping groove of the slider lever under the action of the elastic member, that is, during the second shot mold opening, the slider lever clamps the spring pin and drives the slider seat to move together. This mold mechanism is simple, compactly connected, and requires a small installation space, that is, the volume of the required slider is reduced, thereby reducing the mold volume and reducing the cost.

Brief Description of the Drawings

[0021] Figure 1 It is a structural schematic diagram of a male mold plate and a female mold plate in a double-shot mold mechanism of the present invention.

[0022] Figure 2 It is a partial cross-sectional view after one shot mold closing in the present invention.

[0023] Figure 3 It is a partial cross-sectional view after two-shot mold closing in the present invention.

[0024] Figure 4 It is a structural schematic diagram of the slider lever in the present invention.

[0025] Figure 5 It is a cross-sectional view of the positioning block positioning sliding block seat in the present invention. [Specific implementation method]

[0026] In order to further illustrate the technical means and effects adopted by the present invention, the following is a detailed description in conjunction with the embodiments of the present invention and the accompanying drawings.

[0027] The present invention provides a double-shot mold mechanism, comprising:

[0028] The male template 10 includes: a bottom wear-resistant plate 11, a positioning block 12, a slider seat 13, a floating limit block 14, and a spring pin fixing block 15; wherein,

[0029] A bottom wear-resistant plate 11, wherein the bottom wear-resistant plate 11 is fixed in the male mold plate 10 via a fixing member 220, and a through hole 111 is provided on the bottom wear-resistant plate 11, and the through hole 111 is used for the movement of the positioning block 12;

[0030] A positioning block 12, one end of which is fixed in the male mold plate 10 through an elastic member 230, and the other end of which passes through the through hole 111 of the bottom wear-resistant plate 11 and is located in the positioning hole 112 of the slider seat 13. The positioning block 12 is used to position the slider seat 13 when the male mold plate 10 rotates;

[0031] The slider seat 13 is movably arranged in the male template 10. A positioning hole 112 is provided on one side of the slider seat 13. The positioning hole 112 is used to position the slider seat 13 under the action of the positioning block 12 and the elastic member 230 when the male template 10 rotates. A pressing plate 113 is fixed on the slider seat 13. The pressing plate 113 is provided with an elastic member 230. The elastic member 230 is used for the movement of the floating limit block 14.

[0032] A floating limit block 14, wherein the floating limit block 14 moves on the pressure plate 113 through an elastic member 230, and a clamping block 114 is provided at one end of the floating limit block 14, and the clamping block 114 is used to fix the elastic pin 116, and a boss 115 is provided at one side of the floating limit block 14. When the two-shot mold is closed, the slider lever 212 can press down the boss 115 to move the clamping block 114 of the floating limit block 14 to the exit of the elastic pin 116;

[0033] The elastic pin fixing block 15 is fixed to one side of the slider seat 13 through a fixing member 220. The elastic pin 116 is movably provided in the elastic pin fixing block 15 through an elastic member 230. A base 117 is provided at one end of the elastic pin 116 connected to the elastic member 230. When the mold is closed in one shot, the base 117 moves to the block 114 of the floating limit block 14 under the action of the elastic pin reset rod 211 and the elastic member 230. When the mold is closed in two shots, the elastic pin 116 moves to the slot 214 of the slider lever 212 through the elastic member 230 under the action of the boss 115 of the floating limit block 14 pressed down by the slider lever 212.

[0034] The mother template 20 includes: a first-shot mother template 21 and a second-shot mother template 31; wherein,

[0035] A shot nut template 21, wherein the shot nut template 21 is fixed with an elastic pin reset rod 211 through a fixing member 220, and the elastic pin reset rod 211 can squeeze the elastic pin 116 through one end during the first shot mold closing, so that the elastic pin 116 moves into the elastic pin fixing block 15 under the action of the elastic member 230;

[0036] The second shot mother mold plate 31 is fixed with a slider lever 212 through a fixing member 220. One end of the slider lever 212 is provided with a groove 213 and a slot 214. The groove 213 can press down the boss 115 of the floating limit block 14 during the second shot mold closing, so that the spring pin 116 moves into the slot 214 of the slider lever 212 under the action of the elastic member 230.

[0037] The fixing member 220 may be a screw.

[0038] The positioning block 12 is a positioning block 12 with one side in an inverted "V" shape.

[0039] The elastic member 230 may be a spring.

[0040] Among them, the floating limit block 14, the elastic pin fixing block 15 and the elastic pin 116 can be provided with two groups, which are used for the elastic pin 116 to move into the slots 214 on both sides of the slider lever 212 when the second shot is closed. When the slider lever 212 pulls the elastic pin 116 to move when the second shot is opened, the pulling force of the slider lever 212 can be balanced.

[0041] The working process of the present invention is as follows: when the mold is closed in one shot, the elastic pin reset rod 211 squeezes the elastic pin 116, so that the elastic pin 116 moves into the elastic pin fixing block 15 under the action of the elastic member 230, and at the same time fixes the elastic pin 116 under the clamping block 114 of the floating limit block 14, that is, when the mold is opened in one shot, the elastic pin reset rod 211 moves alone; when the mold is closed in two shots, the groove 213 of the slider lever 212 presses down the boss 115 of the floating limit block 14, so that the elastic pin 116 moves into the clamping groove 214 of the slider lever 212 under the action of the elastic member 230, that is, when the mold is opened in two shots, the slider lever 212 clamps the elastic pin 116 and drives the slider seat 13 to move together.

[0042] The beneficial effects of the present invention are as follows: the present invention is a double-shot mold mechanism, in which the elastic pin reset rod 211 squeezes the elastic pin 116 during the first shot, so that the elastic pin 116 moves into the elastic pin fixing block 15 under the action of the elastic member 230, and the elastic pin 116 is fixed under the clamping block 114 of the floating limit block 14, that is, the elastic pin reset rod 211 moves alone during the first shot mold opening; in the second shot mold closing, the groove 213 of the slider lever 212 presses down the boss 115 of the floating limit block 14, so that the elastic pin 116 moves into the clamping groove 214 of the slider lever 212 under the action of the elastic member 230, that is, during the second shot mold opening, the slider lever 212 clamps the elastic pin 116 and drives the slider seat 13 to move together. This mold mechanism is simple, compactly connected, and requires a small installation space, that is, the volume of the required slider is reduced, thereby reducing the mold volume and reducing the cost.

[0043] It should be pointed out that the present invention is not limited to the above-mentioned implementation modes, and any simple modifications, equivalent changes and modifications made to the above-mentioned embodiments by any technician familiar with the profession based on the technical solution of the present invention fall within the protection scope of the present invention.

Claims

1. A double-shot mold mechanism, characterized in that: include: The male template includes: a bottom wear-resistant plate, a positioning block, a slider seat, a floating limit block, and a spring pin fixing block; wherein, A bottom wear-resistant plate, wherein the bottom wear-resistant plate is fixed in the male mold plate through a fixing member, and a through hole is provided on the bottom wear-resistant plate, and the through hole is used for the movement of the positioning block; A positioning block, one end of which is fixed in the male mold plate by an elastic member, and the other end of which passes through the through hole of the bottom wear-resistant plate and is located in the positioning hole of the slider seat, and the positioning block is used to position the slider seat when the male mold plate rotates; A slider seat, the slider seat is movably arranged in the male template, a positioning hole is provided on one side of the slider seat, the positioning hole is used to position the slider seat under the action of the positioning block and the elastic member when the male template rotates, a pressing plate is fixed on the slider seat, an elastic member is provided on the pressing plate, and the elastic member is used for the movement of the floating limit block; A floating limit block, wherein the floating limit block moves on the pressure plate through an elastic member, a clamping block is provided at one end of the floating limit block, and the clamping block is used to fix the elastic pin, and a boss is provided on one side of the floating limit block. When the two-shot mold is closed, the slider lever can press down the boss to move the clamping block of the floating limit block to the exit elastic pin; An elastic pin fixing block, wherein the elastic pin fixing block is fixed to one side of the slider seat through a fixing piece, an elastic pin is movably arranged in the elastic pin fixing block through an elastic piece, and a base is arranged at one end of the elastic pin connected to the elastic piece. When the mold is closed in one shot, the base moves to the block of the floating limit block under the action of the elastic pin reset rod and the elastic piece; when the mold is closed in two shots, the elastic pin moves to the slot of the slider lever through the elastic piece under the action of the boss of the floating limit block pressed down by the slider lever; The mother template includes: a first-shot mother template and a second-shot mother template; wherein, A shot nut template, wherein the shot nut template is fixed with an elastic pin reset rod through a fixing member, and the elastic pin reset rod can squeeze the elastic pin through one end during the first shot mold closing, so that the elastic pin moves into the elastic pin fixing block under the action of the elastic member; The two-shot mother template is fixed with a slider lever through a fixing part. One end of the slider lever is provided with a groove and a slot. The groove can press down the boss of the floating limit block during the two-shot mold closing, so that the spring pin moves into the slot of the slider lever under the action of the elastic part.

2. A double-shot mold mechanism according to claim 1, characterized in that: The fixing member may be a screw.

3. A double-shot mold mechanism according to claim 1, characterized in that: The positioning block is a positioning block with one side in an inverted "V" shape.

4. A double-shot mold mechanism according to claim 1, characterized in that: The elastic member may be a spring.

5. A double-shot mold mechanism according to claim 1, characterized in that: The floating limit block, the elastic pin fixing block and the elastic pin can be provided in two groups, which are used for the elastic pin to move into the slots on both sides of the slider lever when the second shot mold is closed, and can balance the pulling force of the slider lever when the slider lever pulls the elastic pin to move when the second shot mold is opened.

Images