Thread rolling die

Abstract

The utility model relates to the technical field of dies, in particular to a thread rolling die. The thread rolling mold comprises a forming cavity, a gear module, a positioning mechanism and a reset plate, and the forming cavity is used for injection molding of a product; the gear module comprises a transmission gear and a plurality of driving gears, the transmission gear is meshed with the driving gears to drive the driving gears to rotate, the driving gears are of hollow structures, the forming cavities penetrate through the hollow structures of the driving gears, and the driving gears are used for driving the forming cavities to rotate so as to perform thread rolling on formed products; the positioning mechanism comprises a limiting column, the limiting column is arranged in the forming cavity, and the limiting column is used for fixing the position of a formed product; the reset plate is provided with a columnar containing groove matched with a formed product in shape and a groove matched with the positioning mechanism in shape, the columnar containing groove is used for containing the formed product, and the groove is used for being matched with the positioning mechanism to position the formed product. By means of the reset plate, precise reset of teeth niobium is guaranteed, and the precision of the tooth rolling process is improved.

Description

Technical Field

[0001] The present application relates to the technical field of molds, and in particular to a thread rolling mold. Background Art

[0002] Thread rolling is a method used to process the outer surface of cylindrical or columnar workpieces. Thread rolling forms threads on the outer surface of the workpiece. Thread accuracy is one of the important indicators for measuring product quality. Thread accuracy has a vital impact on the reliability, fastening performance and compatibility with other components of threaded connections. Therefore, it is necessary to ensure the accuracy of the thread rolling process to ensure thread accuracy. During the thread rolling process, when it is necessary to restart the thread rolling operation, the thread rolling mold needs to be restored to its initial state; when it is necessary to adjust the thread rolling operation, the thread needs to be reset to its previous position after adjusting the thread rolling mold.

[0003] In the related art, the traditional thread rolling mold uses a bearing to fix the pressure plate to position the thread pin, but this method makes it difficult to adjust the position of the thread pin in time during the thread rolling process, and the thread pin is easily subjected to uneven force and deviates, resulting in jamming, resulting in low thread rolling accuracy; or the thread pin is directly transferred to the thread rolling module through a driving device for thread rolling, but this method has low positioning accuracy. When the thread rolling operation needs to be adjusted, the thread pin cannot be accurately reset to the previous position, resulting in abnormal thread shape of the product, affecting product quality. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application embodiment provides a tooth rolling mold, which ensures the accurate resetting of the tooth through a resetting plate, improves the accuracy of the tooth rolling process, and thus improves the yield rate of the product.

[0005] In a first aspect, an embodiment of the present application provides a tooth rolling mold, comprising:

[0006] Molding cavity, used for injection molding of products;

[0007] The gear module includes a transmission gear and a plurality of driving gears, wherein the transmission gear and the driving gear are meshed to drive the driving gear to rotate, the driving gear is a hollow structure, the molding cavity is penetrated through the hollow structure of the driving gear, and the driving gear is used to drive the molding cavity to rotate to roll the threads of the molded product;

[0008] The positioning mechanism includes a limiting column, which is arranged inside the molding cavity and is used to fix the position of the molded product;

[0009] The reset plate is provided with a columnar receiving groove matching the shape of the molded product and a groove matching the shape of the positioning mechanism, wherein the columnar receiving groove is used to accommodate the molded product, and the groove is used to cooperate with the positioning mechanism to locate the position of the molded product.

[0010] The technical solution of the above-mentioned first aspect of the present application has at least one of the following advantages or beneficial effects: the driving gear is a hollow structure, which is convenient for the molding cavity to pass through the hollow structure of the driving gear. The transmission gear and the driving gear are meshed, and can drive the driving gear to rotate while the transmission gear rotates, so that the molding cavity passing through the hollow structure rotates synchronously with the driving gear to realize the thread rolling of the formed product; by arranging a limit column inside the molding cavity, the position of the formed product can be fixed, thereby avoiding the problem of low thread rolling accuracy caused by misalignment of the formed product during the thread rolling process. A columnar receiving groove matching the shape of the formed product and a groove matching the shape of the limiting column are provided on the reset plate. Before thread rolling, the reset plate is pulled open by mechanical action, and the transmission gear rotates and drives the driving gear to rotate at the same time, and the driving gear drives the molding cavity to rotate to roll the threads of the formed product; after the thread rolling is completed, the reset plate is reset by mechanical action, and the formed product is accommodated in the columnar receiving groove on the reset plate, and the limiting column is embedded in the groove on the reset plate, so that the groove supports the bottom of the limiting column to fix the position of the positioning column, and the position of the formed product is fixed by fixing the position of the positioning column, thereby ensuring the accuracy of the reset of the formed product, further ensuring the accuracy of the thread rolling process, and improving the product yield.

[0011] According to some embodiments of the present application, the gear module also includes a transmission rack, a bearing, and a positioning gear. The positioning gear is fixed to the bottom of the transmission gear through the bearing. The transmission rack and the positioning gear are meshed to drive the positioning gear to rotate.

[0012] According to some embodiments of the present application, a guide sleeve is further included, wherein the bronze guide sleeve is sleeved on the outer wall of the forming cavity, and the bronze sleeve is used to fix the forming cavity.

[0013] According to some embodiments of the present application, the positioning mechanism further includes a support plate, the limiting column includes a support base, the support plate is arranged on the support base of the limiting column, and the support plate is embedded in the groove.

[0014] According to some embodiments of the present application, a driving assembly is further included, wherein the driving assembly includes a driving motor and a connecting assembly, the driving motor is connected to the transmission rack via the connecting assembly, and the driving assembly is used to drive the transmission rack to move.

[0015] According to some embodiments of the present application, the connecting assembly includes a slider, the slider is provided with a through hole, and the slider is connected to the driving motor through the through hole.

[0016] According to some embodiments of the present application, the connecting assembly also includes a connecting plate, the connecting plate is provided with a first buckle and a second buckle corresponding to the shape of the transmission rack, the connecting plate is connected to the transmission rack through the first buckle and the second buckle, the connecting plate is also provided with a third buckle and a fourth buckle matching the shape of the slider, the connecting plate is connected to the slider through the third buckle and the fourth buckle.

[0017] According to some embodiments of the present application, it also includes a first limit plate and a second limit plate, the first limit plate is provided with a first scale, the second limit plate is provided with a second scale, the first limit plate is provided on the first side of the connecting component, and the second limit plate is provided on the second side of the connecting component.

[0018] According to some embodiments of the present application, an optical sensor is further included, and the optical sensor is used to determine the position of the transmission rack relative to the first limit plate and the second limit plate.

[0019] According to some embodiments of the present application, a positioning assembly is further included, which is used to fix the transmission rack; the positioning assembly includes a first positioning block and a second positioning block, the first positioning block is arranged on a first side of the transmission rack, and the second positioning block is arranged on a second side of the transmission rack.

[0020] 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 through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the examples of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0022] Figure 1 It is an exploded view of a tooth rolling mold provided in an embodiment of the present application;

[0023] Figure 2 is a cross-sectional view of a tooth rolling grinding tool provided in an embodiment of the present application;

[0024] Figure 3 is a schematic diagram of the structure of the reset plate provided in an embodiment of the present application;

[0025] Figure 4 is a top view of a tooth rolling mold provided in an embodiment of the present application;

[0026] Figure 5 It is a top view of another tooth rolling mold provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] 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, for example, 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.

[0029] 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.

[0030] It should be understood that in the description of the embodiments of the present application, the meaning of multiple (or multiple items) is more than two, greater than, less than, exceed, etc. are understood to not include the number, and above, below, within, etc. are understood to include the number.

[0031] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0032] Thread rolling is a method used to process the outer surface of cylindrical or columnar workpieces. Thread rolling forms threads on the outer surface of the workpiece. Thread accuracy is one of the important indicators for measuring product quality. Thread accuracy has a vital impact on the reliability, fastening performance and compatibility with other components of threaded connections. Therefore, it is necessary to ensure the accuracy of the thread rolling process to ensure thread accuracy. During the thread rolling process, when it is necessary to restart the thread rolling operation, the thread rolling mold needs to be restored to its initial state; when it is necessary to adjust the thread rolling operation, the thread needs to be reset to its previous position after adjusting the thread rolling mold.

[0033] In the related art, the traditional thread rolling mold uses a bearing to fix the pressure plate to position the thread pin, but this method makes it difficult to adjust the position of the thread pin in time during the thread rolling process, and the thread pin is easily subjected to uneven force and deviates, resulting in jamming, resulting in low thread rolling accuracy; or the thread pin is directly transferred to the thread rolling module through a driving device for thread rolling, but this method has low positioning accuracy. When the thread rolling operation needs to be adjusted, the thread pin cannot be accurately reset to the previous position, resulting in abnormal thread shape of the product, affecting product quality.

[0034] Based on this, the embodiment of the present application provides a tooth-rolling mold, which ensures the precise repositioning of the tooth through a resetting plate, thereby improving the accuracy of the tooth-rolling process and thus improving the yield rate of the product.

[0035] Please refer to the accompanying drawings to further explain this application.

[0036] Reference Figures 1 to 3 In some embodiments of the present application, the thread rolling mold includes a molding cavity 100, a gear module, a positioning mechanism and a reset plate 400, wherein the molding cavity 100 is used for injection molding of the product; the gear module includes a transmission gear 200 and a plurality of driving gears 300, wherein the transmission gear 200 and the driving gear 300 are meshed to drive the driving gear 300 to rotate, wherein the driving gear 300 is a hollow structure, and the molding cavity 100 is penetrated through the hollow structure of the driving gear 300, wherein the driving gear 300 is used to drive the molding cavity 100 to rotate so as to roll the molded product 110; the positioning mechanism includes a limiting column 120, wherein the limiting column 120 is arranged inside the molding cavity 100, and the limiting column 120 is used to fix the position of the molded product 110; the reset plate 400 is provided with a columnar receiving groove 410 matching the shape of the molded product 110 and a groove 420 matching the shape of the positioning mechanism, wherein the columnar receiving groove 410 is used to accommodate the molded product 110, and the groove 420 is used to cooperate with the positioning mechanism to position the molded product 110.

[0037] In some embodiments of the present application, the driving gear 300 is a hollow structure, which facilitates the molding cavity 100 to pass through the hollow structure of the driving gear 300. The transmission gear 200 and the driving gear 300 are arranged to mesh, so that the transmission gear 200 rotates while driving the driving gear 300 to rotate, so that the molding cavity 100 passing through the hollow structure rotates synchronously with the driving gear 300 to realize the rolling of the molded product 110; by setting a limit column 120 inside the molding cavity 100, the position of the molded product 110 can be fixed, thereby avoiding the problem of low rolling accuracy caused by the misalignment of the molded product 110 during the rolling process. A columnar receiving groove matching the shape of the formed product 110 and a groove matching the shape of the limiting column 120 are provided on the reset plate 400. Before rolling the teeth, the reset plate 400 is pulled open by a mechanical action, and the transmission gear 200 rotates and drives the driving gear 300 to rotate at the same time, and the driving gear 300 drives the molding cavity 100 to rotate to roll the teeth of the formed product 110; after the rolling of the teeth is completed, the reset plate 400 is reset by a mechanical action, and the formed product 110 is accommodated in the columnar receiving groove on the reset plate 400, and the limiting column 120 is embedded in the groove on the reset plate 400, so that the groove supports the bottom of the limiting column 120 to fix the position of the limiting column 120, and the position of the formed product 110 is fixed by fixing the position of the limiting column 120, thereby ensuring the accuracy of the reset of the formed product 110, further ensuring the accuracy of the rolling process, and improving the product yield.

[0038] In some embodiments of the present application, the thread rolling mold further includes an injection molding component, which includes an injection molding port 10 and an injection molding pipe 20, the input end of the injection molding pipe 20 is connected to the injection molding port 10, and the output end of the injection molding pipe 20 is connected to the molding cavity 100. The staff adds the rubber material through the injection molding port 10, the input end of the injection molding pipe 20 is connected to the injection molding port 10, and the output end of the injection molding pipe 20 is connected to the molding cavity 100, so that the pouring material can flow into the molding cavity 100 through the injection molding port 10, ensuring that the molten plastic can evenly and quickly fill the entire molding cavity 100, improving the molding quality and precision of the product, and in addition, by providing the injection molding pipe 20, the pressure loss of the rubber material during the transportation process can be reduced.

[0039] In some embodiments of the present application, the shape of the injection molding pipe 20 can be a circular tube shape or a funnel shape. The embodiments of the present application do not limit the shape of the injection molding pipe 20.

[0040] In some embodiments of the present application, the tooth rolling mold further includes a guide sleeve 130 , which is sleeved on the outer wall of the molding cavity 100 , and is used to fix the molding cavity 100 .

[0041] It should be noted that in the embodiment of the present application, the tooth rolling mold includes two or more guide sleeves 130, and the two or more guide sleeves 130 are sleeved on the outer wall of the molding cavity 100 at a preset interval. The guide sleeve 130 can fix the position of the molding cavity 100, and at the same time provide guidance and support for the rotation of the molding cavity 100, ensuring that the molding cavity 100 can make a linear motion and reduce friction and wear.

[0042] In some embodiments of the present application, the guide sleeve 130 is made of bronze, which has good wear resistance, corrosion resistance and self-lubricating properties. By setting the guide sleeve 130 to be a bronze guide sleeve 130, it can provide guidance and support for the rotation of the molding cavity 100, and can also reduce friction and wear when the molding cavity 100 rotates. Those skilled in the art can set the material of the guide sleeve 130 according to actual conditions, and the present application embodiment does not limit the material of the guide sleeve 130.

[0043] In some embodiments of the present application, the positioning mechanism further includes a support plate 140 , the limiting column 120 includes a support base, the support plate 140 is disposed on the support base of the limiting column 120 , and the support plate 140 is embedded in the groove.

[0044] The limiting column 120 is arranged inside the molding cavity 100 to fix the position of the molded product 110. The limiting column 120 includes a support base 121. The positioning mechanism also includes a support plate 140. The support base 121 is used to place the support plate 140. Since the guide sleeve 130 is arranged on the outer wall of the molding cavity 100, the diameter of the guide sleeve 130 is larger than the diameter of the limiting column 120. The support plate 140 is arranged on the support base 121 of the limiting column 120, and the guide sleeve 130 is supported by the support plate 140. The support plate 140 is embedded in the reset plate 400, so that the reset plate 400 further provides support for the support plate 140, and the guide sleeve 130 is placed to slide down, thereby fixing the position of the guide sleeve 130.

[0045] Reference Figure 4 and Figure 5In some embodiments of the present application, the gear module includes a transmission gear 200 and four driving gears 300. The four driving gears 300 are evenly distributed around the transmission gear 200, and any driving gear 300 is meshed with the transmission gear 200; the driving gear 300 is a hollow structure 310, and the molding cavity 100 is penetrated by the hollow structure 310 of the driving gear 300. When the transmission gear 200 rotates, it can drive the four driving gears 300 to rotate at the same time, and the driving gear 300 drives the molding cavity 100 to rotate to roll the molded product 110. In the present application, by setting four driving gears 300 to mesh with the transmission gear 200, the transmission gear 200 can drive the four driving gears 300 to rotate at the same time, so that the multiple molded products 110 can be rolled, thereby improving the rolling efficiency of the rolling mold. In addition, the four driving gears 300 are evenly distributed around the transmission gear 200, so that each driving gear 300 can be evenly stressed, effectively avoiding the problem of uneven force on the driving gears 300 causing deviation and resulting in jamming, ensuring the smooth rotation of the transmission gear 200 and the driving gear 300, thereby ensuring the smoothness of the tooth-rolling process.

[0046] In some embodiments of the present application, the gear module also includes a transmission rack 500, a bearing (not shown in the figure), and a positioning gear 210. The positioning gear 210 is fixed to the bottom of the transmission gear 200 through a bearing. The transmission rack 500 and the positioning gear 210 are meshed to drive the positioning gear 210 to rotate.

[0047] The transmission gear 200 is a hollow structure, and the bearing is inserted into the hollow structure of the transmission gear 200. The positioning gear 210 is fixed to the bottom of the transmission gear 200 through the bearing, and the positioning gear 210 is meshed with the transmission rack 500. The movement of the transmission rack 500 can drive the positioning gear 210 to rotate. When the positioning gear 210 rotates, the bearing drives the transmission gear 200 to rotate, thereby realizing that the positioning gear 210 drives the transmission gear 200 to rotate.

[0048] In some embodiments of the present application, the thread rolling mold further includes a driving assembly, which includes a driving motor 710 and a connecting assembly. The driving motor 710 is connected to the transmission rack 500 through the connecting assembly, and the driving assembly is used to drive the transmission rack 500 to move. The driving assembly is used to drive the transmission rack 500 to move, and the driving motor 710 is set to be connected to the transmission rack 500 through the connecting assembly. The driving motor 710 drives the transmission rack 500 to move. Since the transmission rack 500 and the positioning gear 210 are meshed, when the driving motor 710 is working, the driving motor 710 drives the transmission rack 500 to drive the positioning gear 210 to rotate. When the positioning gear 210 rotates, the bearing drives the transmission gear 200 to rotate, so that the driving motor 710 drives the transmission rack 500 to move so that the transmission rack 500 rotates; the transmission rack 500 rotates to drive the gear 300 to rotate and drive the molding cavity 100 to rotate to roll the formed product 110.

[0049] In some embodiments of the present application, the connection assembly includes a slider 720, the slider 720 is provided with a through hole, and the slider 720 is connected to the drive motor 710 through the through hole. The connection assembly also includes a connecting plate 730, the connecting plate 730 is provided with a first buckle and a second buckle corresponding to the shape of the transmission rack 500, and the connecting plate 730 is connected to the transmission rack 500 through the first buckle and the second buckle, and the connecting plate 730 is also provided with a third buckle and a fourth buckle matching the shape of the slider 720, and the connecting plate 730 is connected to the slider 720 through the third buckle and the fourth buckle. The drive motor 710 and the transmission rack 500 are connected by the cooperation of the connecting plate 730 and the slider 720. After the drive motor 710 is started, the slider 720 and the connecting plate 730 can play a certain buffering role, which can prevent the drive motor 710 from being directly connected to the transmission rack 500, resulting in uneven movement of the transmission rack 500 or uneven acceptance, causing the transmission rack 500 to deviate and cause jamming, thereby ensuring the accuracy and smoothness of the tooth-rolling process, thereby improving the product yield rate.

[0050] In some embodiments of the present application, the tooth rolling mold further includes a first limit plate 740 and a second limit plate 750, the first limit plate 740 is provided with a first scale, the second limit plate 750 is provided with a second scale, the first limit plate 740 is provided on the first side of the connecting component, and the second limit plate 750 is provided on the second side of the connecting component. By setting the first limit plate 740 on the first side of the connecting component and setting the second limit plate 750 on the second side of the connecting member, the position of the connecting member can be limited by the first limit plate 740 and the second limit plate 750. The drive motor 710 is connected to the connecting member, and the driving operation of the drive motor 710 may generate a certain vibration, which may easily cause the connecting member to be offset or misaligned. The first limit plate 740 and the second limit plate 750 are respectively provided on both sides of the connecting member, so as to limit the position of the connecting member, avoid the moving of the connecting member, and ensure the accuracy of the tooth rolling process. In addition, a first scale is provided on the first limit plate 740 and a second scale is provided on the second limit plate 750, which can determine the position of the connecting member and / or the transmission rack 500 relative to the first limit plate 740 and the second limit plate 750 during the tooth rolling process, and provide accurate resetting data for the tooth rolling resetting operation, thereby realizing the precise resetting of the formed product 110, and further improving the accuracy of the tooth rolling process.

[0051] It should be noted that the first limit plate 740 is disposed on the first side of the connecting component, and the first side may be the left side of the connecting component or the right side of the connecting component. When the first side is the left side of the connecting component, the second side is the right side of the connecting component. In one embodiment, the first limit plate 740 is disposed on the left side of the connecting component, and the second limit plate 750 is disposed on the right side of the connecting component. The embodiment of the present application does not limit the positions of the first side and the second side.

[0052] In some embodiments of the present application, the drive motor 710 can be one of a hydraulic drive motor, a pneumatic drive motor, a mechanical drive motor and a servo drive motor. Technical personnel in this field can select a suitable drive motor 710 according to actual conditions. The embodiments of the present application do not limit the type of drive motor 710.

[0053] In some embodiments of the present application, the tooth rolling mold further includes an optical sensor, which is used to determine the position of the transmission rack 500 relative to the first limit plate 740 and the second limit plate 750. It can be understood that the first limit plate 740 is provided with a first optical sensor, the second limit plate 750 is provided with a second optical sensor, the first limit plate 740 is provided with a first scale, and the second limit plate 750 is provided with a second scale, therefore, the first optical sensor is used to record the position of the transmission rack 500 relative to the first limit plate 740, and the second optical sensor is used to record the position of the transmission rack 500 relative to the second limit plate 750. By cooperating with each other through the first scale and the first optical sensor on the first limit plate 740 and the second scale and the second optical sensor on the second limit plate 750, the position of the transmission rack 500 relative to the first limit plate 740 and the second limit plate 750 during the tooth rolling process can be accurately recorded, providing accurate resetting data for the tooth rolling resetting operation, thereby realizing accurate resetting of the formed product 110 and further improving the accuracy of the tooth rolling process.

[0054] In some embodiments of the present application, the tooth rolling mold also includes a positioning assembly, which is used to fix the transmission rack 500; the positioning assembly includes a first positioning block 610 and a second positioning block 620, the first positioning block 610 is arranged on the first side of the transmission rack 500 to fix the first side of the transmission rack 500, and the second positioning block 620 is arranged on the second side of the transmission rack 500 to fix the second side of the transmission rack 500, thereby avoiding displacement or misalignment of the transmission rack 500, ensuring that the transmission rack 500 can move according to a preset path during the tooth rolling process, thereby improving the accuracy of the tooth rolling process.

[0055] It should be noted that, in some embodiments of the present application, three first positioning blocks 610 are provided, and the first positioning blocks 610 are evenly distributed at a preset interval on the first side of the transmission rack 500 to fix the first side of the transmission rack 500, and three second positioning blocks 620 are provided, and the second positioning blocks 620 are evenly distributed at a preset interval on the second side of the transmission rack 500 to fix the second side of the transmission rack 500. Those skilled in the art can set the number of the first positioning blocks 610 and the second positioning blocks 620 according to actual conditions, and the embodiments of the present application do not limit the number of the first positioning blocks 610 and the second positioning blocks 620.

[0056] In some embodiments of the present application, the tooth rolling mold also includes a mold body, a limiting groove is provided on the mold body, and the limiting groove is used to place the transmission rack 500. The mold body is also provided with a first groove matched with the first positioning block 610 and a second groove matched with the shape of the second positioning block 620. The second positioning block 620 fixes one end of the second positioning block 620 on the mold body through the second groove, and the other end of the second positioning block 620 is flush with the first side of the limiting groove and extends to the top of the limiting groove. The mold body also includes a first opening matching the shape of the driving gear 300 and a second opening matching the shape of the positioning gear 210, and the second opening abuts against the first side of the limiting groove. The tooth rolling mold includes a mold body, and the mold body includes a limiting groove, a first groove, a second groove, a first opening, a second opening, etc., which can accommodate relevant parts of the tooth rolling mold and improve the integration of the tooth rolling mold.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0058] 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 tooth rolling mold, characterized in that: include: Molding cavity, used for injection molding of products; The gear module includes a transmission gear and a plurality of driving gears, wherein the transmission gear and the driving gear are meshed to drive the driving gear to rotate, the driving gear is a hollow structure, the molding cavity is penetrated through the hollow structure of the driving gear, and the driving gear is used to drive the molding cavity to rotate to roll the threads of the molded product; The positioning mechanism includes a limiting column, which is arranged inside the molding cavity and is used to fix the position of the molded product; The reset plate is provided with a columnar receiving groove matching the shape of the molded product and a groove matching the shape of the positioning mechanism, wherein the columnar receiving groove is used to accommodate the molded product, and the groove is used to cooperate with the positioning mechanism to locate the position of the molded product.

2. The tooth rolling mold according to claim 1, characterized in that: The gear module also includes a transmission rack, a bearing, and a positioning gear. The positioning gear is fixed to the bottom of the transmission gear through the bearing. The transmission rack and the positioning gear are meshed to drive the positioning gear to rotate.

3. The tooth rolling mold according to claim 1, characterized in that: It also includes a guide sleeve, which is sleeved on the outer wall of the molding cavity and is used to fix the molding cavity.

4. The tooth rolling mold according to claim 1, characterized in that: The positioning mechanism further includes a support plate, the limiting column includes a support base, the support plate is arranged on the support base of the limiting column, and the support plate is embedded in the groove.

5. The tooth rolling mold according to claim 2, characterized in that: It also includes a driving assembly, which includes a driving motor and a connecting assembly. The driving motor is connected to the transmission rack through the connecting assembly, and the driving assembly is used to drive the transmission rack to move.

6. The tooth rolling mold according to claim 5, characterized in that: The connecting assembly includes a slider, the slider is provided with a through hole, and the slider is connected to the driving motor through the through hole.

7. The tooth rolling mold according to claim 6, characterized in that: The connecting assembly also includes a connecting plate, which is provided with a first buckle and a second buckle corresponding to the shape of the transmission rack, and the connecting plate is connected to the transmission rack through the first buckle and the second buckle. The connecting plate is also provided with a third buckle and a fourth buckle matching the shape of the slider, and the connecting plate is connected to the slider through the third buckle and the fourth buckle.

8. The tooth rolling mold according to claim 5, characterized in that: It also includes a first limit plate and a second limit plate, the first limit plate is provided with a first scale, the second limit plate is provided with a second scale, the first limit plate is provided on the first side of the connecting component, and the second limit plate is provided on the second side of the connecting component.

9. The tooth rolling mold according to claim 8, characterized in that: It also includes an optical sensor, which is used to determine the position of the transmission rack relative to the first limit plate and the second limit plate.

10. The tooth rolling mold according to claim 2, characterized in that: It also includes a positioning assembly, which is used to fix the transmission rack; the positioning assembly includes a first positioning block and a second positioning block, the first positioning block is arranged on the first side of the transmission rack, and the second positioning block is arranged on the second side of the transmission rack.

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