Pre-deformation injection mold

Abstract

The utility model discloses a pre-deformation injection mold which comprises an upper mold body, a lower mold body and a lower mold body, the upper mold body comprises a first upper mold core, and the first upper mold core is arranged at the bottom of the upper mold body; the lower mold body comprises a first lower mold core, the first lower mold core is arranged at the top of the lower mold body, and the first upper mold core and the first lower mold core abut against each other to form a first cavity used for injection molding of a product; and the multiple pre-deformation mechanisms are symmetrically arranged on the two sides of the first cavity, the pre-deformation mechanisms are used for forming a positioning structure on a product subjected to injection molding, each pre-deformation mechanism comprises a tapping device, and the tapping devices are used for being machined after mold testing of the product so as to change the diameter of the positioning structure. In the embodiment of the application, according to the actual use parameters of the product test mold, the tapping device in the pre-deformation mechanism is processed to change the diameter of the product positioning structure, so that the product positioning structure conforms to the actual use parameters, and the product positioning structure corresponds to the actual use parameters; the technical effect of adjusting the mold more conveniently is achieved.

Description

Technical Field

[0001] The utility model relates to the field of mold injection, in particular to a pre-deformed injection mold. Background Art

[0002] Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. The injection mold is a tool for producing plastic products and also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the injection of heated and melted plastic into the mold cavity by the injection molding machine under high pressure, and after cooling and solidification, a molded product is obtained.

[0003] At present, there may be some differences between the molded products after injection molding and the actual use, which may cause the molded product parts to affect the normal operation of the machine or even be unusable, especially in the important positioning structure of the product parts. In the prior art, the parameters of the molded product parts are tested by trial molds, so as to remake the molds that meet the actual use. The process of this technical method is too cumbersome, so how to adjust the mold more conveniently is a problem that needs to be solved urgently. Utility Model Content

[0004] The embodiment of the present application provides a pre-deformed injection mold, which achieves the technical effect of more conveniently adjusting the mold.

[0005] In a first aspect, an embodiment of the present application provides a pre-deformed injection mold, comprising:

[0006] An upper mold body, comprising a first upper mold core, wherein the first upper mold core is arranged at the bottom of the upper mold body;

[0007] A lower mold body, comprising a first lower mold core, wherein the first lower mold core is arranged on the top of the lower mold body, and the first upper mold core and the first lower mold core abut against each other to form a first mold cavity for product injection molding;

[0008] A plurality of pre-deformation mechanisms are symmetrically arranged on both sides of the first cavity, and the pre-deformation mechanisms are used to form a positioning structure on the product after injection molding. The pre-deformation mechanisms include a hole opening device, and the hole opening device is used to be processed after the product trial mold to change the diameter of the positioning structure.

[0009] In some embodiments, the upper mold body also includes a second upper mold core, which is arranged at the bottom of the upper mold body, and the lower mold body also includes a second lower mold core, which is arranged at the top of the lower mold body. The second upper mold core and the second lower mold core abut against each other to form a second cavity for product injection molding, and a plurality of the pre-deformation mechanisms are symmetrically arranged on both sides of the second cavity.

[0010] In some embodiments, the hole opening device includes a plurality of functional columns and a plurality of functional holes, the positioning structure includes a positioning hole matching the diameter of the functional column, and a positioning column matching the diameter of the functional hole, the functional column is arranged on the side surface of the pre-deformation mechanism facing the first cavity, the functional column is used to penetrate the side surface of the first cavity to form the positioning hole, the functional hole is arranged on the side surface of the pre-deformation mechanism facing the first cavity, and the functional hole is used to form the positioning column.

[0011] In some embodiments, the reserved diameter of the functional column and the functional hole is 0.2 mm.

[0012] In some embodiments, it also includes a top plate, a glue injection port and a glue injection pipe, the top plate is fixed to the upper surface of the upper mold body, the top plate is provided with a notch, the glue injection port is embedded in the notch of the top plate, the glue injection pipe penetrates the upper mold body, and the input end of the glue injection pipe is connected to the glue injection port, and the output end of the glue injection pipe is connected to the first cavity.

[0013] In some embodiments, an ejector assembly is also included, and the ejector assembly includes a brake plate and a plurality of ejector pins, one end of the ejector pin is connected to the brake plate, and the other end penetrates the first lower mold core to eject the injection molded product.

[0014] In some embodiments, the ejection assembly further includes a transmission structure for driving the ejector pin to extend and retract, and the ejector pin is connected to the brake plate via the transmission structure.

[0015] In some embodiments, it further includes a base plate and a sensor, wherein the base plate is fixed to the lower surface of the brake plate, and the sensor is installed on a side surface of the base plate, and the sensor is used to sense the position of the brake plate.

[0016] In some embodiments, a plurality of guide pillars are further included, and the upper mold body and the lower mold body are each provided with a plurality of guide holes, and the guide pillars are fixedly connected to the upper mold body and the lower mold body through the guide holes.

[0017] In some embodiments, the system further includes an input port and an output port, wherein the input port is used to input cooling liquid to cool the injection molded product, and the output port is used to output cooling liquid.

[0018] A pre-deformation injection mold provided in an embodiment of the present application has at least the following beneficial effects: the embodiment of the present application comprises: an upper mold body, comprising a first upper mold core, wherein the first upper mold core is arranged at the bottom of the upper mold body; a lower mold body, comprising a first lower mold core, wherein the first upper mold core is arranged at the top of the lower mold body, the first upper mold core and the first lower mold core abut against each other to form a first cavity for product injection molding; a plurality of pre-deformation mechanisms, symmetrically arranged on both sides of the first cavity, the pre-deformation mechanisms are used to form a positioning structure on the molded product, the pre-deformation mechanisms include a hole opening device, which is used to be processed after the product trial mold to change the diameter of the positioning structure; the embodiment of the present application symmetrically arranges a plurality of pre-deformation mechanisms on both sides of the first cavity, and according to the actual use parameters of the product trial mold, the hole opening device in the pre-deformation mechanism is processed to change the diameter of the product positioning structure, so that the positioning structure of the product conforms to the actual use parameters, thereby achieving the technical effect of more conveniently adjusting the mold.

[0019] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A cross-sectional view of a pre-deformed injection mold provided by one embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of an upper mold core and a lower mold core provided in one embodiment of the present application;

[0022] Figure 3 An exploded view of a pre-deformed injection mold provided in an embodiment of the present application;

[0023] Figure 4 A cross-sectional view of a pre-deformed injection mold provided in another embodiment of the present application;

[0024] Figure 5 A side view of a pre-deformed injection mold provided by one embodiment of the present application;

[0025] Figure 6 A front view of a pre-deformed injection mold provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. In addition, the characteristics, operations or features described in the specification can be combined in any appropriate manner to form various implementation methods. At the same time, the steps or actions in the method description can also be replaced or adjusted in order in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the accompanying drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a necessary sequence, unless otherwise specified that a certain sequence must be followed.

[0027] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0029] Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. The injection mold is a tool for producing plastic products and also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the injection of heated and melted plastic into the mold cavity by the injection molding machine under high pressure, and after cooling and solidification, a molded product is obtained.

[0030] After injection molding with a mold prepared by referring to standard parameters, the molded product may be deformed during the production process or may be different from the actual product parameters, resulting in discrepancies in usage, affecting the normal operation of the machine or even making it unusable. This situation often occurs in positioning holes and positioning columns.

[0031] In the prior art, a batch of trial mold products are generally produced through a trial mold process, and the specification parameters of the trial mold products and the specification parameters of actual use are tested. The mold is remade according to the difference in their specification parameters, thereby producing products that meet the specification parameters of actual use.

[0032] However, this method is too complicated, and if a large number of molds need to be made, multiple mold trials are required, and each mold trial requires a new mold to be made, which is complicated and consumes a lot of costs. Therefore, how to adjust the mold more conveniently is an urgent problem to be solved.

[0033] Based on this, an embodiment of the present application provides a pre-deformed injection mold. According to the actual usage parameters of the product trial mold, the opening device in the pre-deformation mechanism is processed to change the diameter of the product positioning structure, so that the positioning structure of the product conforms to the actual usage parameters and achieves the technical effect of more conveniently adjusting the mold.

[0034] The pre-deformed injection mold is described below with reference to the accompanying drawings.

[0035] Reference Figure 1 and Figure 2 As shown, Figure 1 A cross-sectional view of a pre-deformed injection mold provided by one embodiment of the present application, Figure 2 A structural schematic diagram of an upper mold core and a lower mold core provided for an embodiment of the present application, a pre-deformed injection mold provided in an embodiment of the present application, comprising: an upper mold body 100, comprising a first upper mold core 110, the first upper mold core 110 is arranged at the bottom of the upper mold body 100; a lower mold body 200, comprising a first lower mold core 210, the first lower mold core 210 is arranged at the top of the lower mold body 200, the first upper mold core 110 and the first lower mold core 210 abut against each other to form a first cavity 310 for product injection molding; a plurality of pre-deformation mechanisms 400, symmetrically arranged on both sides of the first cavity 310, the pre-deformation mechanisms 400 are used to form a positioning structure on the product after injection molding, the pre-deformation mechanisms 400 include a hole opening device, the hole opening device is used to be processed after the product trial mold to change the diameter of the positioning structure.

[0036] It should be noted that the first upper mold core 110 is arranged at the bottom of the upper mold body 100, and the first lower mold core 210 is arranged at the top of the lower mold body 200. The first upper mold core 110 and the first lower mold core 210 are spliced ​​with each other, and a first cavity 310 with an accommodating space is formed between the first upper mold core 110 and the first lower mold core 210. In one embodiment, when the mold is injected with rubber, the rubber is injected into the first cavity 310 and a product structure is formed in the first cavity 310. A pre-deformation mechanism 400 is provided on the left and right sides of the first cavity 310, and a hole-opening device is provided on the pre-deformation mechanism 400. In one embodiment, when the rubber material is injected into the first cavity 310, the pre-deformation mechanism 400 forms a plurality of positioning structures through the hole-opening device during the injection molding of the product; in another embodiment, during the product trial molding process, when the rubber material is injected into the first cavity 310, the pre-deformation mechanism 400 forms a plurality of positioning structures through the hole-opening device during the injection molding of the trial mold product. After the trial mold product is formed, according to the difference between the trial mold product and the actual use situation, the hole-opening device is processed to make the size diameter of the positioning structure in the product conform to the actual use situation. After the product trial molding, the hole-opening device is processed, and then the product is injection molded again through the processed hole-opening device, so that the positioning structure in the product conforms to the actual use situation, and the technical effect of adjusting the mold more conveniently is achieved.

[0037] Reference Figure 1 and Figure 2 As shown, in some embodiments, the upper mold body 100 also includes a second upper mold core 120, which is disposed at the bottom of the upper mold body 100, and the lower mold body 200 also includes a second lower mold core 220, which is disposed at the top of the lower mold body 200, and the second upper mold core 120 and the second lower mold core 220 abut against each other to form a second cavity 320 for product injection molding, and a plurality of pre-deformation mechanisms 400 are symmetrically disposed on both sides of the second cavity 320.

[0038] It should be noted that the upper mold body 100 also includes a second upper mold core 120, and the lower mold body 200 also includes a second lower mold core 220. The upper mold body 100 can be provided with one or more upper mold cores, and the lower mold body 200 can be provided with one or more lower mold cores, and no limitation is made here. The second upper mold core 120 and the second lower mold core 220 are abutted against each other, and a second cavity 320 with an accommodating space is formed between the second upper mold core 120 and the second lower mold core 220. A pre-deformation mechanism 400 is also provided on the left and right sides of the second cavity 320, and a hole opening device is provided on the pre-deformation mechanism 400. In one embodiment, after the mold is injected with rubber, the rubber flows into the first cavity 310 and the second cavity 320 respectively to form a product structure. During the injection molding process, the pre-deformation mechanism 400 forms a positioning structure on the product through the hole opening device; in another embodiment, after the trial mold product in the first cavity 310 and the trial mold product in the second cavity 320 are injection molded, according to the difference between the trial mold product and the actual usage, the hole opening devices on both sides of the first cavity 310 and the second cavity 320 are processed to make the size and diameter of the positioning structure in the product meet the actual usage.

[0039] In some embodiments, the hole opening device includes a plurality of functional columns and a plurality of functional holes, the positioning structure includes a positioning hole matching the diameter of the functional column, and a positioning column matching the diameter of the functional hole, the functional column is arranged on the side surface of the pre-deformation mechanism 400 facing the first cavity 310, the functional column is used to penetrate the side surface of the first cavity 310 to form the positioning hole, the functional hole is arranged on the side surface of the pre-deformation mechanism 400 facing the first cavity 310, and the functional hole is used to form the positioning column.

[0040] It should be noted that the hole-opening device includes a plurality of functional columns and a plurality of functional holes, and the positioning structure of the product includes a positioning hole that matches the diameter of the functional column and a positioning column that matches the diameter of the functional hole. The functional column and the functional hole are arranged on a side surface of the pre-deformation mechanism 400, and the pre-deformation mechanism 400 is arranged on both sides of the first cavity 310, and the side surface provided with the functional column and the functional hole faces the first cavity 310, and the functional column penetrates the side surface of the first cavity 310, so that the positioning hole that matches the diameter of the functional column is formed on the structure of the product, and the functional hole is recessed into the side surface of the pre-deformation mechanism 400, so that the positioning column that matches the diameter of the functional hole is formed on the structure of the product.

[0041] In some embodiments, the reserved diameter of the functional column and the functional hole is 0.2 mm.

[0042] It should be noted that the diameter of the functional column and the functional hole reserved on the hole-opening device is 0.2 mm, which is used for subsequent processing of the functional column and the functional hole, so that the processed functional column and the functional hole can be injection molded into a product that meets the actual usage conditions.

[0043] It is understandable that when the diameter of the functional column and the functional hole reserved on the hole-opening device is too large, the diameter can be adjusted to meet the actual use through processing, but when the diameter of the functional column and the functional hole reserved on the hole-opening device is too small, the pre-deformation mechanism 400 needs to be remade to adjust the diameter of the functional column and the functional hole. Therefore, the reserved diameter of the functional column and the functional hole is 0.2 mm, which can avoid making the pre-deformation mechanism 400 multiple times, thereby saving costs.

[0044] Reference Figure 3 As shown, Figure 3 An exploded view of a pre-deformed injection mold is provided for an embodiment of the present application. In some embodiments, the injection mold also includes a top plate 500, a glue injection port 600 and a glue injection pipe 700. The top plate 500 is fixed to the upper surface of the upper mold body 100. The top plate 500 is provided with a notch. The glue injection port 600 is embedded in the notch of the top plate 500. The glue injection pipe 700 penetrates the upper mold body 100, and the input end of the glue injection pipe 700 is connected to the glue injection port 600, and the output end of the glue injection pipe 700 is connected to the first cavity 310.

[0045] It should be noted that, in one embodiment, the top plate 500 is fixedly mounted on the top surface of the upper mold body 100, a notch is provided in the middle area of ​​the top plate 500, the glue injection port 600 is embedded in the notch of the top plate 500, the input end of the glue injection pipe 700 is connected to the glue injection port 600, the output end of the glue injection pipe 700 is connected to the first cavity 310, the upper mold body 100 and the upper mold core are also provided with notches matching the glue injection pipe 700, the glue injection pipe 700 is connected to the glue injection port 600, and is connected to the first cavity 310 through the notch of the upper mold body 100 and the notch of the upper mold core. During the injection molding process of the product, the glue is injected through the glue injection port 600 and injected into the first cavity 310 through the glue injection pipe 700; in another embodiment, the top plate 500 is fixedly mounted on the top surface of the upper mold body 100, a notch is provided in the middle area of ​​the top plate 500, the glue injection port 600 is embedded in the notch of the top plate 500, the input end of the glue injection pipe 700 is connected to the glue injection port 600, and the output end of the glue injection pipe 700 is connected to the first cavity 310; The plate 500 is fixedly installed on the top surface of the upper mold body 100, and a notch is set in the middle area of ​​the top plate 500. The glue injection port 600 is embedded in the notch of the top plate 500. The input end of the glue injection pipe 700 is connected to the glue injection port 600, and the output end of the glue injection pipe 700 is respectively connected to the first cavity 310 and the second cavity 320. The upper mold body 100 and the upper mold core are also provided with notches matching the glue injection pipe 700. The glue injection pipe 700 is connected to the glue injection port 600, and is connected to the first cavity 310 and the second cavity 320 through the notch of the upper mold body 100 and the notch of the upper mold core. During the injection molding process of the product, the glue is injected through the glue injection port 600 and injected into the first cavity 310 and the second cavity 320 through the glue injection pipe 700.

[0046] Reference Figure 3As shown, in some embodiments, the injection mold further includes a plurality of guide pillars 1000, and the upper mold body 100 and the lower mold body 200 are both provided with a plurality of guide holes, and the guide pillars 1000 are fixedly connected to the upper mold body 100 and the lower mold body 200 through the guide holes.

[0047] It should be noted that the guide holes of the upper mold body 100 correspond to the guide holes of the lower mold body 200. One end of the guide post 1000 is connected to the guide hole of the upper mold body 100, and the other end is connected to the guide hole of the lower mold body 200, ensuring the accurate alignment of the cavity when the mold is closed, thereby improving the processing accuracy and consistency of the product. The guide post 1000 is used to guide the closing and separation movements of the mold to ensure the precise positioning of the mold during the movement.

[0048] It is understandable that the number of guide holes of the guide pillars 1000 and the upper mold body 100 corresponds to the number of guide holes of the lower mold body 200, and one or more guide holes corresponding to the guide pillars 1000 can be set according to actual usage.

[0049] Reference Figure 4 As shown, Figure 4 A cross-sectional view of a pre-deformed injection mold is provided for another embodiment of the present application. In some embodiments, the injection mold also includes an ejector assembly, which includes a brake plate 810 and a plurality of ejector pins 820. One end of the ejector pin 820 is connected to the brake plate 810, and the other end penetrates the first lower mold core 210 to eject the injection molded product.

[0050] It should be noted that after the injection molding of the product is completed, the injection mold ejects the injection molded product through the brake plate 810 and the ejector pin 820. In one embodiment, the ejector assembly ejects the injection molded product through two ejector pins 820 that penetrate the first lower mold core 210, thereby achieving product demolding and avoiding damage to the mold or deformation of the product due to the plastic product being stuck in the mold.

[0051] It is understandable that the number of the brake plates 810 and the ejector pins 820 can be set to one or more, depending on actual usage, and this embodiment does not impose any limitation.

[0052] Reference Figure 4 As shown, in some embodiments, the ejection assembly further includes a transmission structure 830 for driving the ejector pin 820 to extend and retract, and the ejector pin 820 is connected to the brake plate 810 via the transmission structure 830 .

[0053] It should be noted that the ejector pin 820 is connected to the brake plate 810 through the transmission structure 830. In one embodiment, after the injection molding of the product is completed, when the product needs to be ejected through the ejector pin 820, the ejector pin 820 is driven by the brake plate 810, and the transmission structure 830 is also extended due to the drive of the brake plate 810, further driving the ejector pin 820 to eject the product. After the product is ejected, the ejector pin 820 is driven by the brake plate 810 to reset, and the transmission structure 830 is shortened due to the drive of the brake plate 810, so that the ejector pin 820 is reset. It is ensured that the ejector pin 820 and the brake plate 810 can accurately and quickly return to the initial position after each ejection operation is completed, and the stability and accuracy of the ejection assembly are guaranteed.

[0054] Reference Figure 5 As shown, Figure 5 A side view of a pre-deformed injection mold is provided for one embodiment of the present application. In some embodiments, the injection mold also includes a base plate 900 and a sensor 910. The base plate 900 is fixed on the lower surface of the brake plate 810, and the sensor 910 is installed on one side surface of the base plate 900. The sensor 910 is used to sense the position of the brake plate 810.

[0055] It should be noted that the sensor 910 determines the process of the ejection assembly ejecting the product by sensing the position of the brake plate 810, thereby ensuring that the operating state of the brake plate 810 is normal.

[0056] Reference Figure 6 As shown, Figure 6 A front view of a pre-deformed injection mold provided for one embodiment of the present application. In some embodiments, the injection mold further includes an input port 1100 and an output port 1200. The input port 1100 is used to input coolant to cool the injection molded product, and the output port 1200 is used to output coolant.

[0057] It should be noted that a plurality of input ports 1100 and a plurality of output ports 1200 are provided on the surface of the injection mold, and coolant is injected through the input port 1100 to cool the injection molded product, and the coolant is then output from the output port 1200 to the outside of the injection mold.

[0058] A pre-deformation injection mold provided by the above embodiment includes: an upper mold body, including a first upper mold core, and the first upper mold core is arranged at the bottom of the upper mold body; a lower mold body, including a first lower mold core, and the first lower mold core is arranged at the top of the lower mold body, the first upper mold core and the first lower mold core abut each other to form a first cavity for product injection molding; a plurality of pre-deformation mechanisms, symmetrically arranged on both sides of the first cavity, the pre-deformation mechanism is used to form a positioning structure on the molded product, the pre-deformation mechanism includes a hole opening device, which is used to be processed after the product trial mold to change the diameter of the positioning structure; the embodiment of the present application symmetrically arranges a plurality of pre-deformation mechanisms on both sides of the first cavity, and according to the actual use parameters of the product trial mold, the hole opening device in the pre-deformation mechanism is processed to change the diameter of the product positioning structure, so that the positioning structure of the product conforms to the actual use parameters, thereby achieving a technical effect of more conveniently adjusting the mold.

[0059] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0060] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0061] It should also be understood that the various implementations provided in the embodiments of the present application can be combined arbitrarily to achieve different technical effects.

[0062] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above-mentioned implementation mode. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the present application. These equivalent deformations or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A pre-deformed injection mold, characterized in that: include: An upper mold body, comprising a first upper mold core, wherein the first upper mold core is arranged at the bottom of the upper mold body; A lower mold body, comprising a first lower mold core, wherein the first lower mold core is arranged on the top of the lower mold body, and the first upper mold core and the first lower mold core abut against each other to form a first mold cavity for product injection molding; A plurality of pre-deformation mechanisms are symmetrically arranged on both sides of the first cavity, and the pre-deformation mechanisms are used to form a positioning structure on the product after injection molding. The pre-deformation mechanisms include a hole opening device, and the hole opening device is used to be processed after the product trial mold to change the diameter of the positioning structure.

2. The injection mold according to claim 1, characterized in that: The upper mold body also includes a second upper mold core, which is arranged at the bottom of the upper mold body. The lower mold body also includes a second lower mold core, which is arranged at the top of the lower mold body. The second upper mold core and the second lower mold core abut against each other to form a second cavity for product injection molding, and multiple pre-deformation mechanisms are symmetrically arranged on both sides of the second cavity.

3. The injection mold according to claim 1, characterized in that: The hole opening device includes a plurality of functional columns and a plurality of functional holes, the positioning structure includes a positioning hole matching the diameter of the functional column and a positioning column matching the diameter of the functional hole, the functional column is arranged on the side surface of the pre-deformation mechanism facing the first cavity, the functional column is used to penetrate the side surface of the first cavity to form the positioning hole, the functional hole is arranged on the side surface of the pre-deformation mechanism facing the first cavity, and the functional hole is used to form the positioning column.

4. The injection mold according to claim 3, characterized in that: The reserved diameter of the functional column and the functional hole is 0.2 mm.

5. The injection mold according to claim 1, characterized in that: It also includes a top plate, a glue injection port and a glue injection pipe, wherein the top plate is fixed to the upper surface of the upper mold body, the top plate is provided with a notch, the glue injection port is embedded in the notch of the top plate, the glue injection pipe penetrates the upper mold body, and the input end of the glue injection pipe is connected to the glue injection port, and the output end of the glue injection pipe is connected to the first cavity.

6. The injection mold according to claim 1, characterized in that: It also includes an ejector assembly, which includes a brake plate and a plurality of ejector pins. One end of the ejector pin is connected to the brake plate, and the other end penetrates the first lower mold core to eject the injection molded product.

7. The injection mold according to claim 6, characterized in that: The ejection assembly also includes a transmission structure for driving the ejector pin to extend and retract, and the ejector pin is connected to the brake plate through the transmission structure.

8. The injection mold according to claim 6, characterized in that: It also includes a bottom plate and a sensor, wherein the bottom plate is fixed on the lower surface of the brake plate, and the sensor is installed on one side surface of the bottom plate, and the sensor is used to sense the position of the brake plate.

9. The injection mold according to claim 1, characterized in that: It also includes a plurality of guide pillars. The upper mold body and the lower mold body are both provided with a plurality of guide holes. The guide pillars are fixedly connected to the upper mold body and the lower mold body through the guide holes.

10. The injection mold according to claim 1, characterized in that: It also includes an input port and an output port, wherein the input port is used to input coolant to cool the injection molded product, and the output port is used to output the coolant.

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