A slider glue feeding mechanism

Abstract

The present application relates to injection mold technical field, especially a kind of slider glue feeding mechanism, the slider glue feeding mechanism includes: first slider guide block, for guiding slider sliding;Slider, be located in female mold plate, including slider body and slider insert, first drag hook is equipped on the slider body, and it can be connected with the second drag hook on male mold plate, so that slider body can be first slid on male mold plate to break off material head;Slider insert, one end is fixed on the slider body, L-shaped first accommodating hole is opened on it, the first accommodating hole is closed by pressing block, and L-shaped elastic block is contained in it, the first elastic element that is compressed when clamping is arranged between the one end of the elastic block and the pressing block, glue feeding runner is embedded in the other end of elastic block, the first elastic element is stretched and elastic block is bounced after mold opening, and elastic block ejects material head.The present application can reduce the length of support piece and material head, save cost.

Description

Technical field

[0001] The invention relates to the technical field of injection molds, in particular to a slider glue feeding mechanism. [Background Technology]

[0002] When injecting plastic products with embedded injection molding (carbon fiber board, glass, ceramic, metal and other fragile materials) around the center, such as laptop computer shells, to facilitate the injection of glue, glue is usually injected through the bottom side of the slider around the periphery through the support piece. When using the latent injection method, if the side of the product is high, the required support piece length will be increased accordingly. On the other hand, in order to prevent air entrapment during injection molding and cause product defects, the support piece usually needs to be placed inside the product. In this case, the support piece needs to be further lengthened. The lengthened support piece will increase the number of slugs and increase the mold size and ejection stroke, which can easily cause jamming during ejection.

[0003] In view of this, it is necessary to develop a slider glue feeding mechanism to solve the above problems. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to solve the problem that when the glue is latently fed through the bottom side support of the slider around the periphery, the length of the support required for latent feeding results in a large mold size, a large number of slugs, and thus increased production costs. The present invention provides a slider feeding mechanism to solve the above problem.

[0005] The present invention solves the technical problem by providing a slider glue feeding mechanism, which is applied to a mold, wherein the mold includes a mother mold plate, a mother mold core, a male mold plate and a male mold core, wherein the mother mold core and the male mold core are respectively arranged in the mother mold plate and the male mold plate, and the slider glue feeding mechanism includes:

[0006] A slider, the slider being arranged in the mother template, comprising a slider body and a slider insert, wherein the slider body has a first inclined surface, which slides in contact with the mother template during mold opening and closing, and concave limit slots are provided at both ends of the slider body near the first inclined surface. After mold opening, the limit slots can engage with the slider limit block to limit the sliding of the slider body, and one end of the slider limit block is fixed to the mother template, and the other end thereof engaging with the limit slot is a stepped end;

[0007] Both ends of the slider body are further provided with oblique first guide grooves, the first guide grooves being mortise-jointed with the oblique guide rails on the first slider guide block, one end of the first slider guide block being fixed on the mother template for guiding the slider body to slide;

[0008] The slider body and the sliding surface of the male template are provided with a first hook, one end of the first hook is a first fixed end, which is fixed to the slider body, and the other end of the first hook is a first hook end. Correspondingly, a second hook is provided on the male template, one end of the second hook is a second fixed end, which is fixed to the male template, and the other end of the second hook is a second hook end. The first hook end and the second hook end can be hooked with each other, and the male template is provided with a sliding groove at the position where the first hook and the second hook are hooked. When the mold is opened, the slider body needs to drive the first hook to slide on the male template first until the first hook and the second hook are disengaged. The sliding stroke of the slider body driving the first hook to disengage from the second hook is S1;

[0009] A slider insert, one end of which is fixed to an end of the slider body away from the first inclined surface. A glue feed channel is provided on the slider insert and the male mold core, including a main channel and a branch channel. The main channel is connected to the branch channel, and the branch channel is divided into a first branch channel and a second branch channel. The main channel and the first branch channel are provided in the slider insert, and the second branch channel is provided in the male mold core and is connected to the product glue feed branch piece. The length of the slug formed at the second branch channel is S2, and S2 is smaller than S1.

[0010] The slider insert is provided with a first accommodating hole at the intersection of the main channel and the branch channel, the first accommodating hole is L-shaped, and the end of the first accommodating hole away from the glue inlet channel is closed by a pressure block fixed on the slider insert, and an L-shaped spring block is accommodated in the first accommodating hole, and the intersection of the main channel and the branch channel is embedded in one end of the L-shaped spring block, and the other end of the L-shaped spring block close to the pressure block is provided with a third accommodating hole, and a first elastic element is provided between the third accommodating hole and the pressure block, and the first elastic element is in a compressed state when the mold is closed. After the mold is opened, the spring block can move in the first accommodating hole, but cannot pass through or take off the first accommodating hole.

[0011] Preferably, a wear-resistant plate is provided on the first inclined surface to prevent wear between the slider body and the mother template.

[0012] Preferably, it also includes a second guide block, one end of which is fixed on the mother template, the second guide block is provided with a second inclined surface, and the first inclined surface is provided with a second guide groove at the corresponding position of the second guide block. When opening and closing the mold, one end of the second inclined surface of the second guide block can slide in the second guide groove to position and guide the sliding of the slider body.

[0013] Preferably, an oblique third accommodating hole is provided on the slider body, and a second elastic element is provided in the third accommodating hole. One end of the second elastic element is fixed to the mother template, and the other end is passed through a positioning pin and accommodated in the third accommodating hole. The second elastic element is in a compressed state when the mold is closed, and when the mold is opened, the second elastic element helps the slider body to bounce out.

[0014] Preferably, the first elastic element and the second elastic element are both springs.

[0015] The beneficial effects of the present invention are that, by adopting the method of injecting glue into the slider, the length of the support piece can be reduced, the size of the mold can be reduced, and the material head can be reduced, thereby saving costs, reducing molding time, and improving production efficiency.

Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the slider glue feeding mechanism and product of the present invention.

[0017] Figure 2 It is a schematic diagram of a slider glue feeding mechanism of the present invention.

[0018] Figure 3 It is a schematic diagram of the exploded view of the slider glue feeding mechanism of the present invention.

[0019] Figure 4 It is a schematic diagram of the slider insert structure of the present invention.

[0020] Figure 5 The figure is a schematic diagram of a slider glue feeding mechanism in a mold in a mold closing state according to the present invention.

[0021] Figure 6 yes Figure 5 Enlarged schematic diagram of point A in the middle.

[0022] Figure 7 The present invention is a schematic diagram of a slider glue feeding mechanism in a mold opening state.

[0023] Figure 8 yes Figure 7 Enlarged schematic diagram of point B in the middle. [Specific implementation method]

[0024] To further illustrate the technical means and effects of the present invention, the following is a detailed description in conjunction with the embodiments of the present invention and the accompanying drawings.

[0025] The present invention provides a slider glue feeding mechanism, which is applied to a mold. The mold includes a female mold plate 2, a female mold core 20, a male mold plate 3 and a male mold core 30. The female mold core 20 and the male mold core 30 are correspondingly arranged in the female mold plate 2 and the male mold plate 3. A hot filling nozzle 5 is provided in the direction of the male mold plate 3. The slider glue feeding mechanism includes:

[0026] The slider 1 is disposed in the mother mold plate 2 and includes a slider body 10 and a slider insert 12. The slider body 10 has a first inclined surface 100 that slides against the mother mold plate 2 during mold opening and closing. A wear-resistant plate 101 is fixed to the first inclined surface 100 to prevent wear between the slider body 10 and the mother mold plate 2.

[0027] The first inclined surface 100 is further provided with a second guide groove 102, and the second guide groove 102 allows a second slider guide block 103 to slide. Correspondingly, the second slider guide block 103 has a second inclined surface 104 that slides in cooperation with the second guide groove 102. One end of the second guide block 103 is fixed to the mother template 2 for guiding and positioning the slider body 10.

[0028] Concave limit slots 105 are provided at both ends of the slider body 10 near the first inclined surface 100. After the mold is opened, the limit slots 105 can be engaged with slider limit blocks 106 to limit the sliding of the slider body 10. One end of the slider limit block 106 is fixed to the mother template 2, and the other end thereof engaged with the limit slot 105 is a stepped end 107.

[0029] The two ends of the slider body 10 are further provided with oblique first guide grooves 108, and the first guide grooves 108 are mortise-jointed with oblique guide rails 109 on the first slider guide block 110. One end of the first slider guide block 110 is fixed to the mother template 2 for guiding the slider body 10 to slide.

[0030] The slider body 10 is further provided with an oblique third receiving hole 111, in which a second elastic element 112 is provided. One end of the second elastic element 112 is fixed to the mother mold plate 2, and the other end is inserted through a positioning pin 113 and received in the third receiving hole 111. The second elastic element 112 is in a compressed state when the mold is closed. When the mold is opened, the second elastic element 112 can help the slider body 10 to bounce out.

[0031] A first hook 114 is provided on the sliding surface of the slider body 10 and the male template 3, one end of the first hook 114 is a first fixed end 115, which is fixed to the slider body 10, and the other end of the first hook 114 is a first hook end 116. Correspondingly, a second hook 117 is provided on the male template 3, one end of the second hook 117 is a second fixed end 118, which is fixed to the male template 3, and the other end of the second hook 117 is a second hook end 119. The first hook end 116 and the second hook end 119 can be hooked with each other, and the male template 3 is provided with a sliding groove 31 at the position where the first hook 114 and the second hook 117 are hooked. When the mold is opened, the slider body 10 needs to drive the first hook 114 to slide on the male template 3 until the first hook 114 and the second hook 117 are disengaged. The sliding stroke of the slider body 10 driving the first hook 114 to disengage from the second hook 117 is S1;

[0032] The slider insert 12, one end of the slider insert 12 is fixed to the end of the slider body 10 away from the first inclined surface 100, the slider insert 12 and the male mold core 30 are provided with a glue feed channel 120, including a main channel 121 and a branch channel 122, the main channel 121 is connected to the hot filling nozzle 5 and the branch channel 122, the branch channel 122 is divided into a first branch channel 123 and a second branch channel 124, the main channel 121 and the first branch channel 123 are arranged in the slider insert 12, and the second branch channel 124 is provided. The plastic is placed in the male mold core 30 and connected to the product plastic feed support 40. During injection molding, the plastic enters the product cavity through the hot injection nozzle 5, the main channel 121, the first branch channel 123, the second branch channel 124, and the plastic feed support 40 in sequence. The length of the slug formed at the second branch channel 124 is S2, and S2 is less than the sliding stroke S1 of the slider body 10 to drive the first hook 114 to disengage the second hook 117, so as to ensure that the slug is broken at the product plastic feed support 40 when the slider body 10 withdraws from the male mold plate 3.

[0033] The slider insert 12 is provided with a first accommodating hole 125 at the intersection of the main channel 121 and the branch channel 122. The first accommodating hole 125 is L-shaped. The end of the first accommodating hole 125 away from the glue inlet channel 120 is closed by a pressure block 126 fixed on the slider insert 12. An L-shaped spring block 127 is accommodated in the first accommodating hole 125. The end of the L-shaped spring block 127 close to the pressure block 126 is provided with a third accommodating hole 128. A first elastic element 129 is provided between the third accommodating hole 128 and the pressure block 126. The first elastic element 129 is in a compressed state when the mold is closed. The intersection of the main channel 121 and the branch channel 122 is embedded in the other end of the L-shaped spring block 127. The spring block 127 can move in the first accommodating hole 125, but cannot pass through or remove from the first accommodating hole 125.

[0034] In this embodiment, the first elastic element 129 and the second elastic element 112 are both springs, which have good elasticity and low cost.

[0035] The working process of the present invention will be described below in conjunction with this embodiment. In this embodiment, the product 4 is made of easily broken material by injection molding. The plastic is injected by the hot injection nozzle 5 and flows through the main channel 121, the branch channel 122 and the product plastic feeding support piece 40 in sequence to enter the product cavity. When the mold is opened after the product 4 is injected, the mold between the mother template 2 and the male template 3 is gradually opened. The first slider guide block 110 and the second slider guide block 103 guide the slider body 10 to drive the slider into the sub-12 to slide away from the product 4. The second elastic element 112 stretches and bounces the slider body 10 toward the male template 3. At this time, the first hook 114 connected with the second hook 117 slides in the slide groove 31 of the male template 3 until it slides to the first hook 117. The first hook 114 is disengaged from the second hook 117. Since the withdrawal stroke S1 of the slider body 10 is greater than the slug length S2 at the second branch channel during the disengagement of the first hook 114 and the second hook 117, the slug can be pulled off at the product glue feeding support piece 40. Next, the mold is continued to be opened between the female template 2 and the male template 3. The slider body 10 drives the slider insert 12 and the slug remaining on the slider insert 12 to move away from the male template 3 along the female template 2. When the slider body 10 is separated from the male template 3, the first elastic element 129 will stretch and bounce off the spring block 127. The spring block 127 pops out and pushes out the slug on the slider insert 12. After the slug is taken out, the product 4 can be pushed out.

[0036] In summary, the beneficial effect of the present invention is that by adopting the slider glue feeding mechanism of the present invention to feed glue into the slider 1, the length of the support piece 40 can be reduced, the mold size can be reduced, and the material head can be reduced, thereby saving costs, reducing molding time, and improving production efficiency.

[0037] It should be pointed out that the present invention is not limited to the above-mentioned implementation mode, and any simple modification, equivalent change and modification made to the above-mentioned embodiment based on the technical solution of the present invention by any technician familiar with the profession shall fall within the protection scope of the present invention.

Claims

1. A slider glue feeding mechanism is used in a mold, wherein the mold includes a female mold plate, a female mold core, a male mold plate and a male mold core, wherein the female mold core and the male mold core are respectively arranged in the female mold plate and the male mold plate, and wherein: The slider glue feeding mechanism includes: A slider, the slider being arranged in the mother template, comprising a slider body and a slider insert, wherein the slider body has a first inclined surface, which slides in contact with the mother template during mold opening and closing, and concave limit slots are provided at both ends of the slider body near the first inclined surface. After mold opening, the limit slots can engage with the slider limit block to limit the sliding of the slider body, and one end of the slider limit block is fixed to the mother template, and the other end thereof engaging with the limit slot is a stepped end; Both ends of the slider body are further provided with oblique first guide grooves, the first guide grooves being mortise-jointed with the oblique guide rails on the first slider guide block, one end of the first slider guide block being fixed on the mother template for guiding the slider body to slide; A first hook is provided on the sliding surface of the slider body and the male template, one end of the first hook is fixed to the slider body, and the other end is a first hook end. Correspondingly, a second hook is provided on the male template, one end of the second hook is fixed to the male template, and the other end is a second hook end. The first hook end and the second hook end can be hooked with each other, and the male template is provided with a sliding groove at the position where the first hook and the second hook are hooked. When the mold is opened, the slider body needs to drive the first hook to slide on the male template first until the first hook is disengaged from the second hook. The sliding stroke of the slider body driving the first hook to disengage from the second hook is S1; A slider insert, one end of the slider insert is fixed to an end of the slider body away from the first inclined surface, and a glue feed channel is provided on the slider insert and the male mold core, including a main channel and a branch channel, the main channel is connected to the branch channel, and the branch channel is divided into a first branch channel and a second branch channel. The main channel and the first branch channel are arranged in the slider insert, and the second branch channel is arranged in the male mold core, which is connected to the product glue feed branch piece. The length of the material head formed at the second branch channel is S2, and S2 is smaller than S1. The slider insert is provided with a first accommodating hole at the intersection of the main channel and the branch channel, the first accommodating hole is L-shaped, and the end of the first accommodating hole away from the glue inlet channel is closed by a pressure block fixed on the slider insert, and an L-shaped spring block is accommodated in the first accommodating hole, and the intersection of the main channel and the branch channel is embedded in one end of the L-shaped spring block, and the other end of the L-shaped spring block close to the pressure block is provided with a third accommodating hole, and a first elastic element is provided between the third accommodating hole and the pressure block, and the first elastic element is in a compressed state when the mold is closed, and the spring block can move in the first accommodating hole, but cannot pass through the first accommodating hole.

2. The slider glue feeding mechanism according to claim 1, characterized in that: A wear-resistant plate is provided on the first inclined surface to prevent wear between the slider body and the mother template.

3. The slider glue feeding mechanism according to claim 1, characterized in that: It also includes a second guide block, one end of which is fixed on the mother template. The second guide block is provided with a second inclined surface. The first inclined surface is provided with a second guide groove at the corresponding position of the second guide block. When opening and closing the mold, one end of the second inclined surface of the second guide block can slide in the second guide groove to position and guide the sliding of the slider body.

4. The slider glue feeding mechanism according to claim 1, characterized in that: An oblique third accommodating hole is provided on the slider body, and a second elastic element is provided in the third accommodating hole. One end of the second elastic element is fixed to the mother template, and the other end is inserted into a positioning pin and accommodated in the third accommodating hole. The second elastic element is in a compressed state when the mold is closed, and when the mold is opened, the second elastic element helps the slider body to bounce out.

5. The slider glue feeding mechanism according to claim 4, characterized in that: The first elastic element and the second elastic element are both springs.

Images