A slider anti-sticking mold structure

Abstract

The application provides a slider anti-sticking mold structure, which comprises a front mold, a rear mold and a slider core-pulling mechanism, the front mold comprises a front mold bottom plate and a front mold plate, the front mold plate is provided with a front mold core, and the front mold bottom plate is provided with an inclined guide column and a shovel base; the rear mold comprises a rear mold bottom plate and a rear mold plate, the rear mold plate is provided with a rear mold core, and the rear mold and the front mold are overlapped to form a complete mold core; the slider core-pulling mechanism is located on the rear mold, the slider core-pulling mechanism comprises a slider assembly and a retraction assembly, the retraction assembly is located on the slider assembly, the shovel base has an extrusion effect on the retraction assembly, the extrusion effect gradually decreases when the front mold bottom plate is opened from the front mold plate, the retraction assembly is partially core-pulled, and the inclined guide column drives the slider assembly to be pushed out of the mold as a whole under the driving of the shovel base. The mold is demolded by adopting the structure, so that the demolding is easier and more convenient, and the product can be prevented from being damaged by the slider assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic mold, in particular to a slider anti-sticking mold structure. BACKGROUND

[0002] In the mold injection, the product needs to be demolded after injection molding, and the product is generally demolded by using a pin, a block, a slider and the like. This mode is suitable for products whose molding direction is the same as the opening and closing direction of the injection molding machine. However, for products whose molding direction is different from the opening and closing direction, for example, products molded laterally, the products cannot be demolded directly by using a pin or a slider. When the products are demolded, a movable core is used to move the lateral slider out of the product before the product is ejected from the mold. In addition, the product often sticks to the mold during demolding, especially for products with many internal ribs. The product with many internal ribs is difficult to demold because of the large clamping force of the slider. In addition, the product is easily damaged because of the lack of obvious fixation on the front and rear molds. SUMMARY

[0003] Therefore, the present application provides a slider anti-sticking mold structure to solve the problems of sticking of products with many internal ribs, difficulty in demolding, lack of fixation during demolding, and damage to the product.

[0004] A slider anti-sticking mold structure comprises:

[0005] A front mold comprises a front mold bottom plate and a front mold plate. A front mold core is arranged on the front mold plate. An inclined guide column and a shovel base are arranged on the front mold bottom plate.

[0006] A rear mold comprises a rear mold bottom plate and a rear mold plate. A rear mold core is arranged on the rear mold plate. The rear mold and the front mold are combined to form a complete mold core.

[0007] A slider core-pulling mechanism is arranged on the rear mold. The slider core-pulling mechanism comprises a slider assembly and an internal contraction assembly. The internal contraction assembly is arranged on the slider assembly. The shovel base has an extrusion effect on the internal contraction assembly. When the front mold bottom plate is opened from the front mold plate, the extrusion effect gradually decreases to promote the internal contraction assembly to partially pull the core. The inclined guide column pushes the slider assembly to be demolded as a whole under the driving of the shovel base.

[0008] As a further optional solution of the above-mentioned slider anti-sticking mold structure, guide column holes are arranged on the front mold bottom plate, the front mold plate and the rear mold plate. The front mold bottom plate, the front mold plate and the rear mold plate are positioned and combined by guide columns.

[0009] As a further optional solution of the above-mentioned slider anti-sticking mold structure, the inclined guide pillar is arranged on the shovel base, and a wear-resistant sheet is arranged on the shovel base to prevent wear when the shovel base moves relative to the front mold plate. The shovel base is a straight surface for forming a delay effect, and a slope is arranged on the side of the shovel base close to the bottom relative to the slider assembly.

[0010] As a further optional solution of the above-mentioned slider anti-sticking mold structure, the slider assembly includes a slider seat, and the slider seat also has an inclined surface. The inclined surface on the slider seat matches the inclined surface of the shovel base to form the extrusion effect on the retraction assembly. The slider seat also has an inclined guide pillar hole and a V-shaped groove at the bottom. The V-shaped groove cooperates with the limiting buckle arranged on the rear mold plate to assist in mold opening.

[0011] As a further optional solution of the above-mentioned slider anti-sticking mold structure, the slider assembly further includes a slider core, which is arranged on the slider seat through a fixing screw. The slider seat drives the slider core to slide and demold.

[0012] As a further optional solution of the above-mentioned slider anti-sticking mold structure, the slider seat is provided with a pressing plate on both sides, and the pressing plate is fixed on the rear mold plate to form a sliding guide rail with the rear mold plate. A wear-resistant sheet is arranged below the slider seat. The wear-resistant plate and the rear mold plate are provided with an inclined guide pillar groove correspondingly. Limiting blocks are arranged on the slider seat in the moving direction of the slider seat, and the limiting blocks are arranged on the rear mold plate to limit the movement of the slider seat.

[0013] As a further optional solution of the above-mentioned slider anti-sticking mold structure, the retraction assembly includes a retraction block and a pressing block. The pressing block is arranged on the slider seat, and the retraction block is fixedly installed on the pressing block through a fixing screw. The pressing block drives the retraction block to retract for partial core pulling.

[0014] As a further optional solution of the above-mentioned slider anti-sticking mold structure, the pressing block is further provided with a spring and a limiting screw. The limiting screw connects the slider core through the spring.

[0015] As a further optional solution of the above-mentioned slider anti-sticking mold structure, a limiting screw is further arranged on the front mold bottom plate. A spring is arranged on the limiting screw. A limiting hole is arranged on the front mold plate. The limiting hole and the limiting screw are used to realize precise mold closing of the front mold bottom plate and the front mold plate.

[0016] As a further alternative to the aforementioned slider anti-stick mold structure, the front mold base plate is also provided with a positioning ring and a buckle to ensure that the mold's sprue sleeve and the injection molding machine nozzle are horizontal and completely coincident. The buckle engages with the pull hook provided on the rear mold to tightly close the mold, and the spring on the buckle and the limiting screw works in conjunction to assist in mold opening.

[0017] The embodiments of the present invention have the following beneficial effects:

[0018] This invention provides a slider anti-stick mold structure, which includes a front mold, a rear mold, and a slider core-pulling mechanism. The front mold and the rear mold plate are both provided with mold cores. When the front mold and the rear mold are closed together, a complete mold is formed. The bottom plate of the front mold is also provided with a spade base and an inclined guide post. Under the action of the spade base, the slider core-pulling mechanism first pulls part of the inner shrinking component, and then pushes the slider component and the inner shrinking component to demold as a whole through the action of the inclined guide post. The inner shrinking component demolds part of the product ribs first, which helps to reduce the clamping force of the product ribs on the slider component, making it easier and smoother for the slider component to be demolded as a whole. Moreover, because the core-pulling process is completed in the mold-closed state, the front mold plate and the rear mold plate fix the product, so the product will not be pulled and damaged by the large clamping force formed when the slider component is demolded. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] in:

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the front mold base plate structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the front mold structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the rear mold structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the slider core-pulling mechanism of the present invention;

[0026] Figure 6 This is a bottom view of the slider core-pulling mechanism of the present invention;

[0027] Figure 7 Figure 2 is a sectional view of the sliding core mechanism of the present application;

[0028] Figure 8 Figure 3 is another sectional view of the sliding core mechanism of the present application.

[0029] Main symbol element description:

[0030] 100 - front mold; 110 - front mold base plate; 111 - positioning ring; 120 - front mold plate; 121 - limiting hole; 130 - spade base; 131 - wear-resistant sheet; 140 - inclined guide pillar; 150 - front mold core; 160 - bucking machine; 200 - rear mold; 210 - rear mold base plate; 220 - rear mold plate; 230 - rear mold core; 240 - draw hook; 250 - limiting buckle; 260 - limiting block; 300 - sliding core mechanism; 310 - sliding block assembly; 311 - sliding block seat; 312 - sliding block core; 3111 - V-shaped groove; 3112 - inclined guide pillar hole; 3113 - inclined guide pillar groove; 3114 - wear-resistant plate; 3115 - pressing plate; 320 - retraction assembly; 321 - retraction block; 322 - pressing block; 400 - guide pillar; 410 - guide pillar hole; 500 - spring; 600 - limiting screw; 700 - fixing screw. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] The present application provides a sliding block anti-sticking mold structure. Using the structure for demolding helps to solve the problem that multi-bead injection molded products are prone to sticking to the mold and are difficult to demold. Because the multi-bead injection molded products are prone to forming a large tightness force on the demolding assembly, the product is easily pulled away and damaged during demolding. The structure demolds under the condition of mold clamping, and the mold can fix the product, thereby preventing the product from being pulled away and damaged.

[0033] The embodiment of the present application provides a sliding block anti-sticking mold structure, please refer to Figures 1-8 , which comprises a front mold 100, a rear mold 200 and a sliding core mechanism 300.

[0034] The front mold 100 comprises a front mold base plate 110 and a front mold plate 120, the front mold plate 120 is provided with a front mold core 150, and the front mold base plate 110 is provided with an inclined guide pillar 140 and a spade base 130;

[0035] The back mold 200 includes a back mold base plate 210 and a back mold plate 220, and the back mold plate 220 is provided with a back mold core 230, and the back mold 200 is covered with the front mold 100 to form a complete mold core.

[0036] The slider core-pulling mechanism 300 is located on the back mold 200, and the slider core-pulling mechanism 300 includes a slider assembly 310 and a retraction assembly 320, the retraction assembly 320 is located on the slider assembly 310, the shovel base 130 has a pressing effect on the retraction assembly 320, when the front mold base plate 110 is opened from the front mold plate 120, the pressing effect gradually decreases to promote the retraction assembly 320 to partially core-pull, and the inclined guide column 140 pushes the slider assembly 310 to be demolded as a whole under the driving of the shovel base 130.

[0037] By covering the front mold 100 and the back mold 200 with each other, the front mold core 150 and the back mold core 230 are combined to form a complete mold core, so as to form a complete injection molding product, and the shovel base 130 on the front mold base plate 110 forms a pressing effect with the retraction assembly 320 when the front mold base plate 110 and the front mold plate 120 are covered with each other, and when the front mold base plate 110 is opened from the front mold plate 120, the pressing force of the shovel base 130 on the retraction assembly 320 gradually decreases, the retraction assembly 320 can be partially core-pulled, and the inclined guide column 140 pushes the slider assembly 310 to slide and be demolded as a whole under the driving of the shovel base 130, and the retraction assembly 320 is partially core-pulled first, which reduces the tightness of the product on the slider core-pulling mechanism 300, so that the slider assembly 310 is more relaxed and smooth when being demolded as a whole.

[0038] In the novel embodiment, please refer to Figures 1-4 The front mold base plate 110, the front mold plate 120 and the back mold plate 220 are all provided with guide column holes 410, and the front mold base plate 110, the front mold plate 120 and the back mold plate 220 are positioned and covered by the guide column 400.

[0039] By designing the guide column holes 410 on the front mold base plate 110, the front mold plate 120 and the back mold plate 220, and positioning and covering by the guide column holes 410, the precise clamping of the front mold base plate 110, the front mold plate 120 and the back mold plate 220 is realized by the cooperation of the column and the hole.

[0040] Further, in some embodiments, please refer to Figures 2-3 The front mold base plate 110 is further provided with a limiting screw 600, the limiting screw 600 is provided with a spring 500, the front mold plate 120 is provided with a limiting hole 121, and the limiting hole 121 and the limiting screw 600 are used to realize the precise clamping of the front mold base plate 110 and the front mold plate 120.

[0041] Further, in some embodiments, please refer to Figures 1-4The front mold base 110 is further provided with a positioning ring 111 and a clamping machine 160, the positioning ring 111 is used to ensure that the gate sleeve of the mold and the nozzle of the injection molding machine are horizontally and completely overlapped, and the clamping machine 160 is buckled with the pull hook 240 arranged on the rear mold plate 220, so that the mold is tightly closed, and the spring 500 on the clamping machine 160 and the limiting screw 600 are used in cooperation to assist in mold opening.

[0042] It can be understood that when the front mold base 110, the front mold plate 120 and the rear mold plate 220 are closed, the guide pillar holes 410 on the rear mold plate 220 and the front mold plate 120 are first closed by the guide pillars 400, and then the front mold base 110 is closed on the front mold plate 120 through the guide pillar holes 410 on the front mold base 110. Through the cooperation of the guide pillars 400 and the guide pillar holes 410, the dislocation that may occur when the front mold base 110, the front mold plate 120 and the rear mold plate 220 are closed is avoided, and when the three are closed, the clamping machine 160 arranged on the front mold base 110 is buckled with the pull hook 240 on the rear mold plate 220, so that the front mold base 110, the front mold plate 120 and the rear mold plate 220 can be buckled more tightly. In addition, because the spring 500 of the limiting screw 600 on the front mold base 110 is compressed when the clamping machine 160 and the pull hook 240 are buckled, when the clamping machine 160 is unlocked and the front mold base 110 is opened from the front mold plate 120 for the first time, the compressed spring 500 on the limiting screw 600 is released, and the spring 500 generates upward elastic force to push the front mold base 110, so that the front mold base 110 is more easily opened from the front mold plate 120 for the first time.

[0043] In some embodiments, please refer to Figure 2 , the inclined guide pillar 140 is arranged on the shovel base 130, the shovel base 130 is provided with a wear-resistant sheet 131 to prevent wear when the shovel base 130 moves relative to the front mold plate 120, the shovel base 130 is a straight body surface for forming a delay effect, and one side of the shovel base 130 close to the bottom is provided with an inclined surface relative to the slider assembly 310.

[0044] It should be noted that because the mold is usually opened by moving forward and backward under the action of the injection molding machine, for the injection molded product of the embodiment of the present application which is different from the opening and closing direction and is laterally formed, a lateral driving force is needed to drive the slider core pulling mechanism 300 to pull the core and demold, so the shovel base 130 and the inclined guide pillar 140 are arranged in this embodiment to convert the forward and backward driving force into lateral driving force in the forward and backward direction and the horizontal left and right direction.

[0045] It can be known that when the front mold base 110 and the front mold plate 120 are opened for the first time, the front mold base 110 will drive the shovel base 130 to separate from the front mold plate 120, and the shovel base 130 will move relative to the front mold plate 120 to form friction. At this time, the wear-resistant sheet 131 arranged on the shovel base 130 protects the shovel base 130, so that the shovel base 130 will not be abraded due to movement and friction. In this process, the extrusion of the shovel base 130 on the inner shrinking assembly 320 gradually decreases until the extrusion disappears. In the process of gradually reducing the extrusion force, the inner shrinking assembly 320 is released, so that partial core pulling can be performed. At the same time, when the shovel base 130 moves, the inclined guide column 140 and the slider assembly 310 have a relative movement trend. Then the inclined guide column 140 drives the slider assembly 310 to move laterally and horizontally to be demolded as a whole.

[0046] It should be noted that the delay effect refers to that when the front mold base 110 and the front mold plate 120 are opened for the first time, the shovel base 130 and the front mold plate 120 move relative to each other to separate from the front mold plate 120. Because the straight body surface of the shovel base 130 will push the slider assembly 310, the inclined guide column 140 and the slider will have a relative movement trend, but will not immediately drive the slider assembly 310 to slide laterally and be demolded as a whole. Instead, when the shovel base 130 is separated and no longer pushes the slider assembly 310, the inclined guide column 140 will drive the slider assembly 310 to slide laterally and be demolded as a whole. In addition, in this delay process, as the extrusion force of the shovel base 130 decreases, the inner shrinking assembly 320 also begins to shrink and partially core pulls. This delay effect ensures the smooth performance of the product from partial core pulling to overall demolding.

[0047] In order to cooperate with the shovel base 130 and the inclined guide column 140 in the above-mentioned embodiments to core pull and demold, in some embodiments, please refer to Figures 4-6 The slider assembly 310 includes a slider seat 311, and the slider seat 311 is also provided with an inclined surface. The inclined surface on the slider seat 311 is matched with the inclined surface of the shovel base 130 to form an extrusion on the inner shrinking assembly 320. The slider seat 311 is also provided with an inclined guide column hole 3112 and a V-shaped groove 3111 at the bottom. The V-shaped groove 3111 cooperates with the limiting buckle 250 arranged on the rear mold plate 220 to assist in mold opening.

[0048] In addition, in an embodiment, please refer to Figures 4-6 The slider assembly 310 further includes a slider core 312, which is arranged on the slider seat 311 through a fixing screw 700. The slider seat 311 drives the slider core 312 to slide and demold.

[0049] It can be known that the inclined guide pillar 140 passes through the inclined guide pillar hole 3112 provided on the slider seat 311, the shovel base 130 and the inclined guide pillar 140 form an action on the slider assembly 310, and because the slider core 312 is arranged on the slider seat 311, when the slider seat 311 moves laterally under the action of the inclined guide pillar 140, the slider core 312 slides laterally to demold the product. In addition, it should be noted that when the front mold bottom plate 110 and the front mold plate 120 do not perform the first mold opening, the inclined guide pillar hole 3112 and the inclined guide pillar 140 have a gap of 5mm, and when the first mold opening is performed, the inclined guide pillar 140 follows the movement of the shovel base 130 to separate and form relative movement with the slider seat 311, but because of the delay effect, it cannot immediately drive the slider seat 311 to perform overall demolding, and this 5mm gap plays a buffering role for the inclined guide pillar 140, and before the inclined guide pillar 140 consumes the 5mm gap, the inner contraction assembly 320 can complete the partial core-pulling of the rib position.

[0050] It is worth noting that when the slider core 312 follows the slider seat 311 to perform lateral core-pulling demolding, only the first mold opening is performed, that is, the front mold bottom plate 110 is opened from the front mold plate 120, and the front mold plate 120 is not opened from the rear mold plate 220, so the product is fixed by the front mold plate 120 and the rear mold plate 220. Even if the internal rib position of the product forms a relatively large tight force on the slider core 312, it will not be pulled away by the slider seat 311 during lateral movement demolding, causing damage to the product.

[0051] In order to cooperate with the lateral sliding of the slider seat 311, in an embodiment, please refer to Figure 4 The slider seat 311 is provided with a pressing plate 3115 on both sides, and the pressing plate 3115 is fixed on the rear mold plate 220 to form a sliding guide rail with the rear mold plate 220. A wear-resistant plate 3114 is arranged below the slider seat 311, and the wear-resistant plate 3114 is provided with an inclined guide pillar groove 3113 corresponding to the rear mold plate 220. A limiting block 260 is arranged in the movement direction of the slider seat 311 and is arranged on the rear mold plate 220, which is used to limit the movement of the slider seat 311.

[0052] The slide block seat 311 is clamped on the slide rail formed by the pressing plate 3115 and the rear mold plate 220 and slides on the slide rail under the action of the inclined guide column 140, and in order to prevent the slide block seat 311 from being abraded during the sliding process, the slide block seat 311 is provided with a wear-resistant plate 3114 at the bottom to protect the slide block seat 311, and because the inclined guide column groove 3113 is correspondingly designed on the wear-resistant plate 3114 and the rear mold plate 220, the inclined guide column 140 passing through the inclined guide column hole 3112 moves on the inclined guide column groove 3113 on the rear mold plate 220 and drives the slide block seat 311 to slide on the slide rail, and in order to prevent the slide block seat 311 from being separated from the rear mold plate 220 during the movement, a limiting block 260 is arranged in the movement direction of the slide block seat 311 to limit the movement of the slide block seat 311, and here, when the slide block seat 311 moves to the limiting buckle 250 on the slide rail, the V-shaped groove 3111 on the bottom of the slide block seat 311 cooperates with the limiting buckle 250 to limit the stroke of the slide block seat 311, and at this time, the distance of the V-shaped groove 3111 sliding to the limiting buckle 250 is the stroke of the slide block seat 311.

[0053] In order to make the multi-beam injection molding product can be partially core-pulling in demolding, in the embodiment of the present application, please refer to Figures 7-8 The inner shrink assembly 320 includes an inner shrink block 321 and a pressing block 322, the pressing block 322 is arranged on the slide block seat 311, and the inner shrink block 321 is fixedly installed on the pressing block 322 through a fixing screw 700, and the pressing block 322 drives the inner shrink block 321 to shrink for partial core-pulling.

[0054] It is easy to understand that when the front mold plate 120 and the front mold base plate 110 are not opened for the first time, the inclined surface of the shovel base 130 is pressed against the pressing block 322 on the slide block seat 311, and the pressing force of the inclined surface of the shovel base 130 against the pressing block 322 gradually decreases during the opening process of the front mold base plate 110 from the front mold plate 120, at this time, the pressing block 322 drives the inner shrink block 321 fixedly arranged thereon to move a certain distance, that is, the inner shrink block 321 shrinks, thereby performing partial core-pulling of the beams.

[0055] Further, in order to enable the pressing block 322 to drive the inner shrink block 321 to shrink, in a specific embodiment, please refer to Figures 7-8 The pressing block 322 is further provided with a spring 500 and a limiting screw 600, and the limiting screw 600 passes through the spring 500 to connect the slide block core 312.

[0056] Thus, when the pressing block 322 is pressed by the shovel base 130, the pressing block 322 is pressed and the spring 500 is compressed, at this time, the limiting screw 600 in the compression direction and the pressing block 322 will have a 5mm interval distance, which is the compression distance of the spring 500, when the shovel base 130 gradually releases, the pressing block 322 gradually releases, the rebound of the compressed spring 500 will drive the pressing block 322 to move and then drive the inner shrinking block 321 to shrink, at this time, the moving distance of the pressing block 322 is also 5mm, and when the sliding block core 312 and the sliding block core 312 are connected to the fixed screw 700 and the sliding block core 312 and the pressing block 322 between the limiting screw 600, the sliding block assembly 310 will also drive the inner shrinking assembly 320 to move.

[0057] Here, in order to clearly show the action principle of the sliding block anti-sticking mold structure, please refer to Figures 1-8 and the above embodiment for description.

[0058] Firstly, when the front mold 100 and the rear mold 200 are in the closed mold state, the shovel base 130 arranged on the front mold bottom plate 110 forms extrusion on the pressing block 322 on the sliding block seat 311, the spring 500 inside the pressing block 322 is compressed by 5mm, and the inclined guide column 140 and the inclined guide column hole 3112 on the sliding block seat 311 have a 5mm buffer gap, when the first opening of the mold is started, that is, the process of opening the front mold bottom plate 110 from the front mold plate 120, the extrusion force of the shovel base 130 on the pressing block 322 gradually decreases, the spring 500 inside the pressing block 322 gradually rebounds and drives the pressing block 322 to move 5mm, when the pressing block 322 moves, it will drive the inner shrinking block 321 fixedly arranged thereon to move a corresponding distance, that is, the inner shrinking block 321 shrinks by 5mm to partially core-pulling, at the same time, the inclined guide column 140 on the shovel base 130 will also move with the separation of the shovel base 130, but because the inclined guide column 140 and the inclined guide column hole 3112 have a 5mm buffer gap, and because the shovel base 130 is arranged as a straight surface to top the sliding block seat 311 to form a delay effect, the sliding block seat 311 will not immediately move for overall demolding under the action of the inclined guide column 140, when the shovel base 130 separates and no longer tops the sliding block seat 311, the inclined guide column 140 will immediately drive the sliding block seat 311 and the sliding block core 312 to move for overall demolding, and before the inclined guide column consumes the 5mm buffer gap, the inner shrinking block 321 has completed partial core-pulling.

[0059] Secondly, when the product completes overall demolding, the second opening of the mold is carried out, that is, the front mold plate 120 is opened from the rear mold plate 220, at this time, the product can be taken out from the mold.

[0060] Back to the embodiment of the present application, the embodiment of the present application provides a slider anti-sticking mold structure, which converts the front-back direction force generated by the opening and closing of the injection molding machine into a lateral driving force through the shovel base 130 and the inclined guide column 140 on the front mold bottom plate 120, and releases the compression block 322 assembly pressed and compressed by the shovel base 130 and drives the inner compression block 321 to move to partially core the product part rib position, reduces the tight force of the internal rib position on the slider assembly 310, prevents the product from sticking to the slider core 312, and then under the action of the inclined guide column 140, the slider seat 311 of the slider assembly 310 slides on the sliding guide formed on the rear mold plate 220 and the compression plate 3115 to perform overall core pulling and demolding. This way of first performing partial core pulling and then performing overall demolding reduces the tight force of the product rib position on the slider assembly 310, making demolding easier, and at the time of demolding, the front mold plate 120 and the rear mold plate 220 of the mold are not opened, and the product is still fixed on the mold core, and will not be pulled away to cause damage when the slider assembly 310 slides and demolds.

[0061] The above only discloses the preferred embodiments of the present application, and of course cannot limit the scope of the rights of the present application, so the equivalent changes made according to the claims of the present application still fall within the scope of the present application.

Claims

1. A slider release mold structure characterized by comprising: The utility model relates to a mould for injection moulding, which comprises: a front mould, which comprises a front mould base plate and a front mould plate, the front mould plate is provided with a front mould core, and the front mould base plate is provided with an inclined guide pillar and a shovel base, the inclined guide pillar is arranged on the shovel base; a rear mould, which comprises a rear mould base plate and a rear mould plate, the rear mould plate is provided with a rear mould core, and the rear mould and the front mould are combined to form a complete mould core; a slider core-pulling mechanism, which is arranged on the rear mould, the slider core-pulling mechanism comprises a slider assembly and a retraction assembly, the retraction assembly is arranged on the slider assembly, the shovel base has a pressing action on the retraction assembly, the pressing action gradually decreases when the front mould base plate is opened from the front mould plate, so as to promote the retraction assembly to partially pull the core, and the inclined guide pillar pushes the slider assembly to drive the retraction assembly to be demoulded as a whole under the driving of the shovel base; the slider assembly comprises a slider seat, and the slider seat is further provided with an inclined guide pillar hole; when the front mould base plate and the front mould plate are not opened for the first time, a gap is formed between the inclined guide pillar hole and the inclined guide pillar.

2. A slider anti-sticking mold structure according to claim 1, wherein The front mould base plate, the front mould plate and the rear mould plate are all provided with guide pillar holes, and the front mould base plate, the front mould plate and the rear mould plate are positioned and combined by means of guide pillars.

3. The slider anti-sticking mold structure according to claim 1, wherein The shovel base is provided with a wear-resistant sheet, which prevents the shovel base from being abraded when the shovel base moves relative to the front mould plate, the shovel base is a straight surface and is used for forming a delay effect, and one side of the shovel base close to the bottom is provided with an inclined surface relative to the slider assembly.

4. A slider anti-sticking mold structure according to claim 3, wherein The slider seat is also provided with an inclined surface, the inclined surface of the slider seat is matched with the inclined surface of the shovel base to form the pressing action on the retraction assembly, the bottom of the slider seat is provided with a V-shaped groove, and the V-shaped groove is matched with a limiting buckle arranged on the rear mould plate to assist mould opening.

5. A slider anti-sticking mold structure according to claim 4, wherein The slider assembly further comprises a slider core, which is arranged on the slider seat by means of a fixing screw, and the slider seat drives the slider core to slide and be demoulded.

6. A slider anti-sticking mold structure according to claim 5, wherein The slider seat is provided with a pressing plate on both sides, the pressing plate is fixed on the rear mould plate to form a sliding guide rail with the rear mould plate, the slider seat is provided with a wear-resistant plate below, the wear-resistant plate is provided with an inclined guide pillar groove corresponding to the rear mould plate, the slider seat is provided with a limiting block in the moving direction, and the limiting block is arranged on the rear mould plate to limit the movement of the slider seat.

7. A slider anti-sticking mold structure according to claim 6, wherein The retraction assembly comprises a retraction block and a pressing block, the pressing block is arranged on the slider seat, and the retraction block is fixedly installed on the pressing block by means of a fixing screw, so that the pressing block drives the retraction block to retract and partially pull the core.

8. A slider anti-sticking mold structure according to claim 7, wherein The pressing block is further provided with a spring and a limiting screw, and the limiting screw passes through the spring to connect the slider core.

9. The slider anti-sticking mold structure according to claim 1, wherein The front mould base plate is further provided with a limiting screw, the limiting screw is provided with a spring, the front mould plate is provided with a limiting hole, and the limiting hole and the limiting screw are used to realize accurate mould combination of the front mould base plate and the front mould plate.

10. A slider anti-sticking mold structure according to claim 9, wherein The front mould base plate is further provided with a positioning ring and a clamping machine, which are used to ensure that the gate sleeve of the mould and the nozzle position of the injection moulding machine are horizontal and completely overlapped, the clamping machine is buckled with a pulling hook arranged on the rear mould to make the mould tightly combined, and the clamping machine and the spring on the limiting screw are used in cooperation to assist mould opening.

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