An injection mold

Abstract

The utility model discloses an injection mold, which includes an upper template and a lower template, wherein the upper template is arranged above the lower template in the vertical height direction, and the upper template is provided with a groove opening toward the lower template, wherein a plurality of sliders are provided in the groove, and the plurality of sliders are connected in sequence to enclose and form a cavity, and a wear-resistant sheet is provided in the gap between the slider and the groove wall, and the wear-resistant sheet is fixed on the slider. The utility model arranges a wear-resistant sheet on the back of the slider, so that the combination formed by the slider and the wear-resistant sheet can meet the corresponding precision requirements and improve efficiency. In addition, arranging a wear-resistant sheet on the slider can improve the wear resistance of the slider, extend the service life of the injection mold, and maintain the precision and stability of the injection mold.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, in particular to an injection mold. Background Art

[0002] With the development of modern industry, injection molds play a vital role in the manufacturing process of various products. Injection molds are a tool used to make molded objects in industrial production. Through injection molds, raw materials can be processed into products with specific shapes and sizes. These products are widely used in electronics, construction, automobiles and other fields. The injection mold is composed of multiple parts. In order to ensure the accuracy of the entire injection mold, the accuracy of each component needs to meet the preset requirements. In the prior art, if the accuracy of some workpieces in the injection mold (such as sliders, etc.) is not accurate enough, these workpieces need to be disassembled and redesigned. However, since some workpieces in the injection mold (such as sliders) are relatively large, if they are to be re-precision processed, the steps are cumbersome and difficult to operate, which takes a lot of time and has low efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an injection mold to solve the problem that the traditional injection mold is time-consuming, labor-intensive and inefficient when adjusting the precision of a workpiece (ie a slider).

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An injection mold comprises an upper template and a lower template, wherein the upper template is arranged above the lower template in the vertical height direction, and the upper template is provided with a groove opening toward the lower template, and the groove is provided with a plurality of sliders, and the plurality of sliders are connected in sequence to enclose a cavity; a wear-resistant sheet is provided in the gap between the slider and the groove wall, and the wear-resistant sheet is fixed on the slider.

[0006] Furthermore, the injection mold described in the present invention also includes a mold core and a needle plate arranged below the lower mold plate, at least part of the mold core is arranged in a cavity formed by the plurality of sliders, and at least part of the mold core is connected to the needle plate.

[0007] Furthermore, in the injection mold described in the present invention, it also includes a front mold core and a rear mold core, the front mold core and the rear mold core are respectively arranged on the upper and lower sides of the slider, the front mold core cover is arranged on the slider, and the rear mold core is sleeved on the mold core; wherein the front mold core, the rear mold core, the mold core and multiple sliders together enclose a model cavity.

[0008] Furthermore, the injection mold described in the utility model also includes a top plate, a gate plate and a nozzle, the top plate is arranged above the gate plate in the vertical height direction, the gate plate is arranged above the upper mold plate in the vertical height direction, at least part of the nozzle is arranged in the top plate, and the remaining part of the nozzle is arranged in the gate plate.

[0009] Furthermore, the injection mold described in the utility model also includes an injection pipe, one end of which is connected to the feed port of the nozzle, and the other end of which is connected to the model cavity.

[0010] Furthermore, in the injection mold described in the utility model, the sliding block is provided with a plurality of positioning blocks on the side where the wear-resistant sheet is provided, and the wear-resistant sheet is fastened between the plurality of positioning blocks.

[0011] Furthermore, the injection mold described in the utility model also includes a guide block, which is located above the lower template and fixedly connected to the upper template, and the slider is slidably disposed on the guide block.

[0012] Furthermore, in the injection mold described in the utility model, a slide groove is provided on the sliding block, and a guide portion is provided on the guide block, and the guide portion can be slidably embedded in the slide groove.

[0013] Furthermore, in the injection mold described in the utility model, a receiving groove is provided on the sliding block, a cover plate is provided on the receiving groove, and the cover plate is connected to the upper mold plate.

[0014] Furthermore, the injection mold described in the utility model also includes an elastic member, which includes a guide rod and a spring, the spring is sleeved on the guide rod, one end of the guide rod is connected to the upper mold plate, and the other end of the guide rod is embedded in the slider; wherein one end of the spring is connected to the cover plate, and the other end of the spring rests on the bottom of the accommodating groove.

[0015] The beneficial effect of the utility model is that the utility model sets the slider in the slot with the upper template opening downward, and sets the wear-resistant sheet at the gap between the slider and the slot wall. By setting the corresponding wear-resistant sheet (such as wear-resistant sheets of different thicknesses), the precision of the mold can be adjusted. For example, when the thickness of the slider is too small, a slider of corresponding thickness is added so that the combination formed by the slider and the wear-resistant sheet can meet the corresponding precision requirements, and the film matching is relatively simple. When the slider is not accurate enough, it is only necessary to disassemble the wear-resistant sheet for redesign or processing, and there is no need to disassemble the entire workpiece (i.e., the slider) for redesign and processing. Since the wear-resistant sheet (relative to the slider) is small in size and not complex, it is relatively simple and convenient to design or process the wear-resistant sheet compared to reprocessing the slide. Moreover, as a consumable part, if the wear-resistant sheet is worn, it is sufficient to replace the local wear-resistant sheet, which can effectively improve efficiency. In addition, arranging the wear-resistant sheet on the slider can improve the wear resistance of the slider, extend the service life of the injection mold, and maintain the precision and stability of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the injection mold of the utility model in one embodiment from one viewing angle;

[0017] Figure 2 for Figure 1 A top view of the injection mold shown;

[0018] Figure 3 for Figure 2 Sectional view of section AA;

[0019] Figure 4 for Figure 1 A left side view of the injection mold is shown;

[0020] Figure 5 for Figure 4 Cross-sectional view of the middle BB section;

[0021] Figure 6 for Figure 1 The schematic diagram of the structure of the injection mold shown is after some parts are hidden.

[0022] Description of labels:

[0023] 1. Upper mold plate; 11. Front mold core; 12. Cover plate; 13. Mold core; 14. Injection molding pipe;

[0024] 2. Lower template; 21. Rear mold core;

[0025] 3. Sliding block; 31. Wear-resistant sheet; 32. Positioning block; 33. Guide block; 331. Guide part; 34. Slide; 35. Limiting block;

[0026] 4. Needle plate;

[0027] 5. Panel;

[0028] 6. Nozzle plate;

[0029] 7. Ji Ju;

[0030] 8. Guide rod;

[0031] 9. Spring;

[0032] 10. Base plate. DETAILED DESCRIPTION

[0033] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0034] Please refer to Figures 1 to 6 The utility model designs an injection mold, which includes an upper template 1 and a lower template 2. The upper template is arranged above the lower template in the vertical height direction, and the upper template is provided with a groove opening toward the lower template, and a plurality of sliders 3 are provided in the groove, and the plurality of sliders are connected in sequence to enclose and form a cavity; a wear-resistant sheet 31 is provided in the gap between the slider and the groove wall, and the wear-resistant sheet is fixed on the slider.

[0035] The structural principle / working principle of the utility model is briefly described as follows: When the precision of the injection mold is not enough, the prior art needs to disassemble the corresponding workpiece for reprocessing. However, since the corresponding workpiece is relatively large, the steps of disassembling and reprocessing are cumbersome and difficult to operate. For this reason, the utility model sets a wear-resistant sheet 31 between the contact surface of the slider 3 and the upper template 1. Specifically, the slider 3 is set in the downward opening slot of the upper template 1, and the wear-resistant sheet 31 is set at the gap between the slider 3 and the slot wall, and the wear-resistant sheet 31 is fixed on the slider 3. The utility model can adjust the precision of the slider by setting the corresponding wear-resistant sheet 31 (such as wear-resistant sheets 31 of different thicknesses). For example, when the thickness of the slider is too small, a slider of corresponding thickness is added so that the combination formed by the slider and the wear-resistant sheet can meet the corresponding precision requirements, and the film matching is relatively simple. When the slider is not accurate enough, it is only necessary to disassemble the wear-resistant sheet for redesign or processing, without disassembling the entire workpiece (i.e., the slider) for redesign and processing. Since the wear-resistant sheet (relative to the slider) is small in size and not very complex, it is relatively simple and convenient to design or process the wear-resistant sheet compared to reprocessing the slider. Moreover, as a consumable part, if the wear-resistant sheet 31 is worn, it is sufficient to replace the partial wear-resistant sheet 31, which can effectively improve efficiency. In addition, by arranging the wear-resistant sheet 31 on the slider 3, the wear resistance of the slider 3 can be improved, the service life of the injection mold can be extended, and the precision and stability of the injection mold can be maintained.

[0036] Furthermore, the injection mold described in the present invention also includes a mold core and a needle plate 4 arranged below the lower mold plate, at least part of the mold core is arranged in a cavity formed by the plurality of sliders, and at least part of the mold core is connected to the needle plate.

[0037] In the above technical solution of the utility model, the design and manufacture of the mold core determine the shape, size and precision of the product. The mold core is arranged in a cavity formed by a plurality of sliders 3 so that the mold core and the plurality of sliders 3 can be subsequently enclosed to form a mold cavity for preparing the product.

[0038] Furthermore, in the injection mold described in the present invention, it also includes a front mold core 11 and a rear mold core 21, and the front mold core and the rear mold core are respectively arranged on the upper and lower sides of the slider, the front mold core cover is arranged on the slider, and the rear mold core is sleeved on the mold core 13; wherein the front mold core, the rear mold core, the mold core and multiple sliders together enclose a model cavity.

[0039] In the above technical solution of the utility model, by setting the front mold core 11 and the rear mold core 21, and the front mold core 11 covers the top of the multiple sliders 3, and the rear mold core 21 is set at the bottom of the multiple sliders 3 and sleeved on the mold core 13, the front mold core 11, the rear mold core 21, and the multiple sliders 3 can be surrounded by a cavity, and the mold core is partially set in the cavity, and the remaining space (gap) in the cavity is the mold cavity. By injecting the corresponding material into the mold cavity, the corresponding product can be prepared.

[0040] Furthermore, in the injection mold described in the utility model, it also includes a panel 5, a gate plate 6 and a nozzle 7, the top plate is arranged above the gate plate in the vertical height direction, the gate plate is arranged above the upper template in the vertical height direction, at least part of the nozzle is arranged in the top plate, and the remaining part of the nozzle is arranged in the gate plate.

[0041] In the above technical solution of the utility model, a nozzle 7 (nozzle) is arranged in the injection mold, and the nozzle 7 can cooperate with the nozzle of the injection molding machine to guide the blank (i.e. the material for preparing the product) to flow into the injection mold cavity, ensuring that the blank can smoothly and accurately enter the injection mold cavity.

[0042] Furthermore, the injection mold of the present invention further comprises an injection pipe 14, one end of the injection pipe 14 is connected to the feed port of the nozzle, and the other end of the injection pipe is connected to the mold cavity.

[0043] In the above technical solution of the utility model, by setting the corresponding nozzle 7 and injection pipe, the blank (ie the material for preparing the product) can effectively enter the mold cavity through the nozzle 7 injection pipe to prepare the product.

[0044] Furthermore, in the injection mold described in the present invention, the slider 3 is provided with a plurality of positioning blocks 32 on the side where the wear-resistant sheet is provided, and the wear-resistant sheet is fastened between the plurality of positioning blocks 32 .

[0045] In the above technical solution of the utility model, a plurality of outwardly protruding positioning blocks 32 are arranged on the side of the slider 3 where the wear-resistant sheet 31 is arranged, such as a positioning block 32 is arranged at each upper and lower position. On this basis, the wear-resistant sheet 31 is arranged between the plurality of positioning blocks 32, and the plurality of positioning blocks 32 can limit and fix the wear-resistant sheet 31.

[0046] Furthermore, the injection mold described in the present invention further includes a guide block 33 , which is located above the lower mold plate 2 and is fixedly connected to the upper mold plate 1 , and the slider 3 is slidably disposed on the guide block 33 .

[0047] In the above technical solution of the utility model, the guide block 33 is a component used to ensure that the slider 3 can move in the preset mold opening direction when the mold is opened (i.e., demolding). When the mold is opened, the upper mold plate 1 and the lower mold plate 2 will be separated. Since the guide block 33 is fixedly connected to the upper mold plate 1, the slider 3 will slide relative to the guide block 33 to ensure that the slider can slide in the preset mold opening direction.

[0048] Furthermore, in the injection mold of the present invention, a slide groove 34 is provided on the slide block 3 , and a guide portion 331 is provided on the guide block 33 , and the guide portion 331 can be slidably embedded in the slide groove 34 .

[0049] In the above technical solution of the utility model, a slide groove 34 is provided on the slider 3, and a guide portion 331 is provided on the guide block 33. Since the guide portion 331 is slidably embedded in the slide groove 34, the slider 3 can slide along a fixed mold opening direction when sliding relative to the guide block 33. It should be noted that the above mold opening direction can be the extension direction of the slide groove 34 or the guide portion 331.

[0050] Furthermore, in the injection mold of the utility model, a receiving groove is provided on the sliding block, a cover plate 12 is provided on the receiving groove, and the cover plate 12 is connected to the upper mold plate.

[0051] Furthermore, the injection mold described in the present invention also includes an elastic member, which includes a guide rod 8 and a spring 9, wherein the spring 9 is sleeved on the guide rod 8, one end of the guide rod 8 is connected to the upper mold plate, and the other end of the guide rod is embedded in the slider; wherein one end of the spring is connected to the cover plate, and the other end of the spring rests on the bottom of the accommodating groove.

[0052] In the above technical solution of the utility model, the spring 9 is sleeved on the guide rod 8, so that when the spring 9 is reset, the spring 9 will use the extension direction of the guide rod 8 as its own reset direction, thereby ensuring that the spring 9 can move in the correct direction (such as reset). In actual use, when demolding (opening the mold), that is, when the upper mold plate 1 is separated from the lower mold plate 2, the spring 9 will drive the slider 3 to move in the preset mold opening direction to separate the product.

[0053] Please refer to Figures 1 to 6 The first embodiment of the utility model is: an injection mold, which can be used to make molded articles. In this embodiment, the injection mold includes a panel 5, a nozzle plate 6, a front mold plate (i.e., an upper mold plate 1), a front mold core 11, a rear mold core 21, a rear mold plate (i.e., a lower mold plate 2), a needle plate 4 and a bottom plate 10 connected in sequence from top to bottom. Figures 1 to 6 The above components are described in detail.

[0054] In this embodiment, the panel 5 is arranged above the nozzle plate 6, and a nozzle 7 is correspondingly arranged at the middle position between the panel 5 and the nozzle plate 6. The nozzle 7 opens upward, and the nozzle 7 is partially embedded in the panel 5 and partially embedded in the nozzle plate 6. The nozzle 7 is provided with a feed hole and a groove connected to the feed hole. The feed hole is arranged at the bottom of the funnel groove, and the groove opens upward. In addition, an injection molding pipe is also arranged in the injection mold of the utility model, and the injection molding pipe can be used for the blank (i.e., the material for preparing the product) to pass through. One end of the injection molding pipe is connected to the feed hole of the nozzle 7, and the other end passes through the upper mold core and is connected to the mold cavity. That is, the blank in the molten state can pass through the nozzle 7, the feed hole and the injection molding pipe in sequence, and finally flow into the mold cavity to prepare a product of a corresponding shape.

[0055] In this embodiment, the upper template 1 is arranged above the lower template 2, and a slot opening toward the lower template 2 is provided in the upper template 1, and four sliders 3 are provided in the slot, two of which are arranged parallel and symmetrically along the first direction with a certain gap, and the other two are arranged parallel and symmetrically along the second direction and fixed in the above gap to form a rectangular cavity with a cross section similar to a rectangle. The shape of the slider 3 is similar to a step platform with a small top and a large bottom. The cross section of the slider 3 in the vertical height direction gradually decreases upward along the vertical height direction, and the outer side surface (i.e., the back side) of the slider 3 away from the mold core is an inclined surface. In addition, in this embodiment, two wear-resistant sheets 31 arranged up and down are provided on the outer side surface (i.e., the back side) of the slider 3 away from the mold core, that is, the wear-resistant sheet 31 is provided in the gap between the slider 3 and the slot wall, and the shape of the wear-resistant sheet 31 is adapted to the shape of the above-mentioned back side. It should be noted that the wear-resistant sheet 31 is fixed on the slider 3. Specifically, screw holes are provided on each slider 3 and the wear-resistant sheet 31. The wear-resistant sheet 31 can be fixed to the slider 3 by bolts. In addition, outwardly protruding positioning blocks 32 are provided at the upper and lower ends of the back of the slider 3 to further fix the wear-resistant sheet 31. A slide groove 34 and a guide block 33 are provided on the left and right sides of the slider 3 (i.e., the two outer sides adjacent to the above-mentioned back side). The guide block 33 is located above the lower template 2 and fixedly connected to the upper template 1, and the guide portion 331 of the guide block 33 can be slidably embedded in the slide groove 34. When opening the mold, the slider 3 can slide relative to the guide block 33 along the mold opening direction. It should be noted that the extension direction of the slide groove 34 is the mold opening direction of the injection mold. In addition, the slider 3 is provided with a limit block 35 at the lower middle position of the back side, and the limit block 35 is fixed to the upper mold plate 1. When the slider 3 slides along the mold opening direction, the limit block can limit the sliding stroke of the slider 3. In other words, by providing the limit block 35, the sliding range / distance of the slider on its track or path (i.e., the mold opening direction) can be limited to ensure that the slider does not exceed the predetermined sliding working range.

[0056] In this embodiment, the injection mold further includes a mold core, a front mold core 11, a rear mold core 21 and other components. Figure 6 As shown, the above four sliders 3 enclose a cavity similar to a cube, the upper part of the mold core is located in the cavity formed by the multiple sliders 3, and the lower part extends out of the cavity and is fixedly connected to the needle plate 4. The front mold core 11 covers the top of the multiple sliders 3, that is, covers the top of the above cavity to seal the upper opening of the cavity. The rear mold core 21 is set at the bottom of the multiple sliders 3 and is sleeved on the mold core to seal the lower opening of the cavity. Therefore, the front mold core 11, the rear mold core 21, the mold core and the multiple sliders 3 enclose a mold cavity for preparing products.

[0057] In addition, the above-mentioned injection mold is also provided with an elastic member (i.e., a guide rod 8 and a spring 9), the spring 9 is sleeved on the guide rod 8, one end of the guide rod 8 is fixedly connected to the upper mold plate 1, and the other end is embedded in the receiving groove of the slider 3, and correspondingly, the spring 9 is arranged in the receiving groove. In addition, a cover plate 12 is provided on the receiving groove, the cover plate 12 covers the notch of the receiving groove and has a through hole on the cover plate 12 for the guide rod 8 to pass through, the cover plate 12 is fixedly connected to the upper mold plate 1, one end of the spring 9 is connected to the cover plate 12, and the other end is against the bottom of the receiving groove.

[0058] In summary, the injection mold provided by the utility model can be directly disassembled for processing when the precision of the injection mold is not enough, without taking down the entire workpiece (i.e. the slider) for redesign and processing. By setting the corresponding wear-resistant sheet to adjust the corresponding precision, the mold matching is relatively simple. Moreover, as a consumable part, if the wear-resistant sheet is worn out, only the partial wear-resistant sheet needs to be replaced, without disassembling the entire workpiece, which is convenient and efficient.

[0059] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An injection mold, characterized in that: It includes an upper template and a lower template, the upper template is arranged above the lower template in the vertical height direction, and the upper template is provided with a groove opening toward the lower template, the groove is provided with a plurality of sliders, and the plurality of sliders are connected in sequence to enclose and form a cavity; a wear-resistant sheet is provided in the gap between the slider and the groove wall, and the wear-resistant sheet is fixed on the slider.

2. The injection mold according to claim 1, characterized in that: It also includes a mold core and a needle plate arranged below the lower mold plate, at least part of the mold core is arranged in a cavity formed by a plurality of the sliders, and at least part of the mold core is connected to the needle plate.

3. The injection mold according to claim 2, characterized in that: It also includes a front mold core and a rear mold core, wherein the front mold core and the rear mold core are respectively arranged on the upper and lower sides of the slider, the front mold core is covered on the slider, and the rear mold core is sleeved on the mold core; wherein the front mold core, the rear mold core, the mold core and a plurality of sliders together enclose a model cavity.

4. The injection mold according to claim 3, characterized in that: It also includes a top plate, a gate plate and a nozzle, wherein the top plate is arranged above the gate plate in the vertical height direction, the gate plate is arranged above the upper template in the vertical height direction, at least part of the nozzle is arranged in the top plate, and the remaining part of the nozzle is arranged in the gate plate.

5. The injection mold according to claim 4, characterized in that: It also includes an injection molding pipeline, one end of which is connected to the feed port of the nozzle, and the other end of which is connected to the mold cavity.

6. The injection mold according to claim 1, characterized in that: The sliding block is provided with a plurality of positioning blocks on the side where the wear-resistant sheet is provided, and the wear-resistant sheet is fastened between the plurality of positioning blocks.

7. The injection mold according to claim 1, characterized in that: It also includes a guide block, which is located above the lower template and is fixedly connected to the upper template. The sliding block is slidably arranged on the guide block.

8. The injection mold according to claim 7, characterized in that: The sliding block is provided with a sliding groove, and the guiding block is provided with a guiding portion, and the guiding portion can be slidably embedded in the sliding groove.

9. The injection mold according to claim 1, characterized in that: The sliding block is provided with a receiving groove, the receiving groove is provided with a cover plate, and the cover plate is connected to the upper template.

10. The injection mold according to claim 9, characterized in that: It also includes an elastic member, which includes a guide rod and a spring, wherein the spring is sleeved on the guide rod, one end of the guide rod is connected to the upper template, and the other end of the guide rod is embedded in the slider; wherein one end of the spring is connected to the cover plate, and the other end of the spring rests on the bottom of the accommodating groove.

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