Self-resetting cut-off limiting device for die
By designing a self-resetting and cutting limiting device including a return spring, a limiting shaft and a limiting slot, the problem of positioning accuracy of the limiting device in the prior art due to loose threads is solved, efficient and precise cutting processing of the mold is achieved, and the long-term stability and reliability of the device are ensured.
Patent Information
- Application Number
- CN202422189931.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-06
AI Technical Summary
After long-term use, the existing self-resetting and cutting limiting device is loose due to the susceptibility to vibration, resulting in a decrease in positioning accuracy and requires regular inspection and maintenance.
A self-resetting and cutting limiting device including a positioning seat, feeding board, cutting board, positioning bolt, positioning groove, threaded screw and limiting assembly is designed. Through the cooperation of the reset spring, limiting shaft and limiting groove, the precise automatic reset of the cut-off plate is achieved, and through the mutual cooperation of the positioning board and the insertion plate, the fixing of the feed plate and the positioning seat is quickly and reliably completed.
Through the close cooperation of the cutting plate, return spring, limiting shaft and limiting groove, the cutting processing of the mold is achieved, and the cutting plate can be restored to its original position after each processing, providing accurate positioning and preparation for the next mold processing, improving processing efficiency and accuracy, and avoiding the reduction in positioning accuracy caused by vibration.
Smart Images
Figure CN222985834U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of limiting devices, in particular to a self-resetting cutting limiting device for a mold. Background Technique
[0002] The self-resetting cutting limiting device is a precision positioning device used in mold processing. It can automatically reset during the mold cutting process to ensure the accuracy and consistency of each cutting. This self-resetting cutting limiting device is widely used in various mold processing fields, improving the efficiency and quality of mold processing.
[0003] At present, during the installation of the existing self-resetting cutting limiting device, bolts are usually used to install the device on the top surface of the positioning seat. This connection mechanism is firm and can provide good stability. However, after long-term use, the threads are prone to loosen due to vibration, resulting in a decrease in positioning accuracy. Regular inspections and maintenance are required to maintain the performance of the device. In view of this, we provide a self-resetting cutting limiting device for a mold. Content of the Utility Model
[0004] The purpose of the utility model is to make up for the deficiencies of the existing technology and provide a self-resetting cutting limiting device for a mold.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A self-resetting cutting limiting device for a mold, including a positioning seat. One side of the top surface of the positioning seat is fixedly connected with a feeding plate, and a cutting plate is slidably connected to the center of the outer wall of the feeding plate. The cutting plate is located on one side of the top surface of the positioning seat, and the cutting plate is slidably connected to one side of the top of the positioning seat through the feeding plate. A plurality of positioning bolts are fixedly connected to both sides of the top surface of the positioning seat, and the positioning bolts are located inside one side of the feeding plate. A group of corresponding positioning grooves are simultaneously opened on both sides of the bottom surface of the feeding plate, and the positioning grooves correspond to the positioning bolts. The top end of the outer wall of the positioning bolt penetrates through the center of the inside of the positioning groove, and both sides of the outer wall of the positioning bolt are slidably connected to both sides of the inside of the positioning groove. A group of corresponding threaded lead screws are simultaneously rotatably connected to both sides inside the feeding plate, and a limiting component is slidably connected to the outside of one side of the feeding plate through the threaded lead screws.
[0006] As described above, a group of corresponding limiting plates are respectively fixedly connected to one side of the outer wall of the feeding plate, and the limiting plates are located on both sides of the outer wall of the cutting plate. One side of the outer wall of the cutting plate is slidably connected to one side of the outer wall of the limiting plate.
[0007] As described above, a limiting shaft is fixedly connected to the top end inside the feeding plate. A limiting groove is opened at the top of the outer wall of the cutting plate, and the limiting shaft is located at the bottom end inside the limiting groove. One end of the outer wall of the limiting shaft penetrates through one side of the inside of the limiting groove, and both sides of the outer wall of the limiting shaft are slidably connected to the bottom end inside the limiting groove.
[0008] As described above, one side of the top surface of the feeding plate is fixedly connected with a return spring, and the return spring is located between the feeding plate and the cutting plate. The top end of the outer wall of the return spring is fixedly connected with the center of the bottom surface of the cutting plate, and the cutting plate is slidably connected with the top of the outer wall of the feeding plate through the return spring.
[0009] As described above, the center of the bottom surface of the feeding plate is fixedly connected with an insertion plate, and the insertion plate is located at the top end inside the positioning seat. The bottom of the outer wall of the insertion plate penetrates through one side of the top surface of the positioning seat, and both sides of the outer wall of the insertion plate are slidably connected with one side inside the positioning seat.
[0010] As described above, sliding rails are fixedly connected to both sides of the inner wall of the positioning seat, and a positioning plate is slidably connected to the center inside the positioning seat. One end of the outer wall of the sliding rail penetrates through one side inside the positioning plate, and one side inside the positioning plate is slidably connected with one side of the outer wall of the sliding rail.
[0011] As described above, a positioning spring is fixedly connected to one side of the inner wall of the positioning seat, and one end of the outer wall of the positioning spring is fixedly connected with the center of the outer wall of the positioning plate. The positioning plate corresponds to the insertion plate, and the top end of the inner wall of the insertion plate is in contact with and abuts against the bottom surface of one side of the positioning plate.
[0012] As described above, a pressing plate is slidably connected to one side inside the positioning seat, and one side of the bottom of the pressing plate is fixedly connected with the bottom end of the outer wall of the positioning plate.
[0013] As described above, one end of the outer wall of the threaded lead screw penetrates through one side of the outer wall of the limiting component, and one side inside the limiting component is rotatably connected with one end of the outer wall of the threaded lead screw. The center of the outer wall of the threaded lead screw penetrates through one side inside the feeding plate, and the center of the outer wall of the threaded lead screw is rotationally connected with the center inside the feeding plate through a thread.
[0014] Compared with the prior art, the self - resetting cutting and limiting device for a mold has the following beneficial effects:
[0015] First, the present utility model places the mold into the circular hole in the center of the feeding plate. After the mold slides into the center of the cutting plate, pressure is applied to the center of the top surface of the cutting plate to make the cutting plate move vertically towards the top surface of the positioning seat along the outer wall of the limiting plate. At the same time, pressure is applied to the mold for cutting. After the processing is completed, the pressure is released, and the return spring pushes the cutting plate upward. The cooperation between the limiting shaft and the limiting groove ensures the precise automatic reset of the cutting plate. Thus, through the close cooperation among the cutting plate, the return spring, the limiting shaft and the limiting groove, the cutting process of the mold is realized, and it is ensured that the cutting plate can return to its original position after each processing, providing precise positioning and preparation for the next mold processing, effectively improving the processing efficiency and processing accuracy of the device.
[0016] Second, after aligning the positioning groove with the positioning bolt, the utility model inserts the insertion plate at the center of the bottom surface of the feeding plate into the opening on the top surface of the positioning seat through the feeding plate. When the inclined surface at the bottom of the insertion plate contacts the inclined surface protrusion on the outer wall of the positioning plate, the insertion plate pushes the positioning plate to compress the positioning spring. When the concave surface inside the insertion plate aligns with the protrusion on the outer wall of the positioning plate, the positioning plate loses the thrust, and the positioning spring rebounds, causing the positioning plate to be clamped with the insertion plate, thus quickly and accurately completing the installation and positioning of the feeding plate. Through the mutual cooperation of the positioning plate and the insertion plate, the utility model realizes the fast and reliable fixation between the feeding plate and the positioning seat, and also ensures the stability of the connection structure between the feeding plate and the positioning seat during the long-term processing. It will not cause the connection structure to loosen due to vibration or other external factors, resulting in a decrease in positioning accuracy, greatly improving the usability of the entire device and the reliability of the processing process.
[0017] Other advantages, objectives, and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. Brief Description of the Drawings
[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0019] Figure 2 is a partial three-dimensional structural schematic diagram of the feeding plate and the limiting plate of the present utility model;
[0020] Figure 3 is a partial sectional three-dimensional structural schematic diagram of the feeding plate and the cutting plate of the present utility model;
[0021] Figure 4 is a partial sectional three-dimensional structural schematic diagram of the feeding plate of the present utility model;
[0022] Figure 5 is a partial sectional three-dimensional structural schematic diagram of the positioning seat of the present utility model;
[0023] Figure 6 is a partial three-dimensional structural schematic diagram of the limiting component of the present utility model.
[0024] In the figure: 1, positioning seat; 2, feeding plate; 201, cutting plate; 202, limiting plate; 203, limiting shaft; 204, limiting groove; 205, return spring; 3, positioning bolt; 301, positioning groove; 302, insertion plate; 303, slide rail; 304, positioning plate; 305, positioning spring; 306, pressing plate; 4, threaded lead screw; 401, limiting component. Detailed Embodiment
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0026] As Figures 1-6 shown, the present utility model provides a technical solution: a self-resetting cutting and limiting device for a mold, including a positioning seat 1. One side of the top surface of the positioning seat 1 is fixedly connected with a feeding plate 2, and a cutting plate 201 is slidably connected to the center of the outer wall of the feeding plate 2. The cutting plate 201 is located on one side of the top surface of the positioning seat 1, and the cutting plate 201 is slidably connected to one side of the top of the positioning seat 1 through the feeding plate 2. A plurality of positioning bolts 3 are fixedly connected to both sides of the top surface of the positioning seat 1, and the positioning bolts 3 are located on one side inside the feeding plate 2. A set of corresponding positioning grooves 301 are simultaneously opened on both sides of the bottom surface of the feeding plate 2, and the positioning grooves 301 correspond to the positioning bolts 3. The top end of the outer wall of the positioning bolt 3 is connected through the center of the inside of the positioning groove 301, and both sides of the outer wall of the positioning bolt 3 are slidably connected to both sides of the inside of the positioning groove 301. A set of corresponding threaded lead screws 4 are simultaneously rotatably connected to both sides inside the feeding plate 2, and a limiting component 401 is slidably connected to the outside of the feeding plate 2 through the threaded lead screws 4.
[0027] After aligning the positioning groove 301 opened at the inner bottom end of the feeding plate 2 with the positioning bolt 3 fixedly connected to the top surface of the positioning seat 1, insert the plug 302 at the center of the bottom surface of the feeding plate 2 into the opening on one side of the top surface of the positioning seat 1 through the feeding plate 2. When the inclined surface on one side of the bottom of the plug 302 comes into contact with the inclined surface protrusion on the outer wall of the positioning plate 304, the plug 302 pushes the positioning plate 304 along the slide rail 303 towards the positioning spring 305 through the inclined surface protrusion, compressing the positioning spring 305. When the concave surface on one side inside the plug 302 aligns with the protrusion on the outer wall of the positioning plate 304, since the positioning plate 304 loses the thrust from the plug 302, the positioning spring 305 pushes the positioning plate 304 towards the plug 302 by its own elasticity, causing the positioning plate 304 to be mutually clamped with the inside of one side of the plug 302, and thus the feeding plate 2 can be installed on one side of the top surface of the positioning seat 1. After placing the mold to be processed and cut into the circular hole at the center inside the feeding plate 2, when the mold slides to the center inside the cutting plate 201, by applying pressure to the center of the top surface of the cutting plate 201, the cutting plate 201 moves vertically towards the top surface of the positioning seat 1 along the outer wall of the limiting plate 202, and applies pressure to the top surface of the mold, causing the cutting plate 201 to cut the mold and complete the processing. When the pressure applied to the center of the top surface of the cutting plate 201 is released, through the elasticity of the reset spring 205, the cutting plate 201 is pushed upward towards the positioning seat 1, and through the close cooperation of the limiting shaft 203 and the limiting groove 204, after the cutting plate 201 completes the processing of the mold, it can complete precise and accurate automatic reset through the reset spring 205. Thus, through the mutual cooperation of the positioning plate 304 and the plug 302, rapid and reliable fixation between the feeding plate 2 and the positioning seat 1 is achieved, and it also ensures the stability of the connection structure between the feeding plate 2 and the positioning seat 1 during long-term processing, preventing the connection structure from loosening due to vibration or other external factors, resulting in a decrease in positioning accuracy, greatly improving the usability of the entire device and the reliability of the processing process.
[0028] As Figures 1-3 shown, a set of corresponding limiting plates 202 are fixedly connected to one side of the outer wall of the feeding plate 2, and the limiting plates 202 are located on both sides of the outer wall of the cutting plate 201. One side of the outer wall of the cutting plate 201 is slidably connected to one side of the outer wall of the limiting plate 202. A limiting shaft 203 is fixedly connected to the inner top end of the feeding plate 2. A limiting groove 204 is opened at the top of the outer wall of the cutting plate 201, and the limiting shaft 203 is located at the inner bottom end of the limiting groove 204. One end of the outer wall of the limiting shaft 203 penetrates one side of the inside of the limiting groove 204, and both sides of the outer wall of the limiting shaft 203 are slidably connected to the inner bottom end of the limiting groove 204. A reset spring 205 is fixedly connected to one side of the top surface of the feeding plate 2, and the reset spring 205 is located between the feeding plate 2 and the cutting plate 201. The top end of the outer wall of the reset spring 205 is fixedly connected to the center of the bottom surface of the cutting plate 201, and the cutting plate 201 is slidably connected to the top of the outer wall of the feeding plate 2 through the reset spring 205.
[0029] After placing the mold to be processed and cut into the round hole at the center inside the feeding plate 2, when the mold slides to the center inside the cutting plate 201, by applying pressure to the center of the top surface of the cutting plate 201, the cutting plate 201 moves vertically towards the top surface of the positioning seat 1 along the outer wall of the limiting plate 202, and pressure is applied to the top surface of the mold, so that the cutting plate 201 cuts the mold and completes the processing. When the pressure applied to the center of the top surface of the cutting plate 201 is released, due to the self-elasticity of the return spring 205, the cutting plate 201 is pushed upward towards the positioning seat 1, and through the close fit of the limiting shaft 203 and the limiting groove 204, after the cutting plate 201 finishes processing the mold, it can complete precise and accurate automatic reset through the return spring 205. Thus, through the close fit among the cutting plate 201, the return spring 205, the limiting shaft 203 and the limiting groove 204, the cutting process of the mold is realized, and it is ensured that the cutting plate 201 can return to its original position after each processing, providing accurate positioning and preparation for the next mold processing, and effectively improving the processing efficiency and processing accuracy of the device.
[0030] As Figure 1 、 Figure 2 、 Figure 4 and Figure 5 shown, a plug board 302 is fixedly connected to the center of the bottom surface of the feeding plate 2, and the plug board 302 is located at the top end inside the positioning seat 1. The bottom of the outer wall of the plug board 302 is connected through the top surface of one side of the positioning seat 1, and both sides of the outer wall of the plug board 302 are slidably connected to one side inside the positioning seat 1. Slide rails 303 are fixedly connected to both sides of the inner wall of the positioning seat 1, and a positioning plate 304 is slidably connected to the center inside the positioning seat 1. One end of the outer wall of the slide rail 303 is connected through one side inside the positioning plate 304, and one side inside the positioning plate 304 is slidably connected to one side of the outer wall of the slide rail 303. A positioning spring 305 is fixedly connected to one side of the inner wall of the positioning seat 1, and one end of the outer wall of the positioning spring 305 is fixedly connected to the center of the outer wall of the positioning plate 304. The positioning plate 304 corresponds to the plug board 302, and the top end of the inner wall of the plug board 302 is in contact with and abuts against the bottom surface of one side of the positioning plate 304. A pressing plate 306 is slidably connected to one side inside the positioning seat 1, and the bottom of one side of the pressing plate 306 is fixedly connected to the bottom end of the outer wall of the positioning plate 304.
[0031] After aligning the positioning groove 301 opened at the inner bottom end of the feeding plate 2 with the positioning bolt 3 fixedly connected to the top surface of the positioning seat 1, insert the insertion plate 302 at the center of the bottom surface of the feeding plate 2 into the opening on one side of the top surface of the positioning seat 1. When the inclined surface on one side of the bottom of the insertion plate 302 comes into contact with the inclined surface protrusion on the outer wall of the positioning plate 304, the insertion plate 302 pushes the positioning plate 304 along the slide rail 303 towards the positioning spring 305 through the inclined surface protrusion, causing the positioning plate 304 to compress the positioning spring 305. When the concave surface on one side inside the insertion plate 302 aligns with the protrusion on the outer wall of the positioning plate 304, since the positioning plate 304 loses the thrust from the insertion plate 302, the positioning spring 305 pushes the positioning plate 304 towards the insertion plate 302 by its own elasticity, enabling the positioning plate 304 to be mutually clamped with the inside of one side of the insertion plate 302. Thus, the feeding plate 2 can be installed on one side of the top surface of the positioning seat 1. Through the mutual cooperation of the positioning plate 304 and the insertion plate 302, the rapid and reliable fixation between the feeding plate 2 and the positioning seat 1 is achieved, and it also ensures the stability of the connection structure between the feeding plate 2 and the positioning seat 1 during long-term processing, preventing the connection structure from loosening due to vibration or other external factors, which may lead to a decrease in positioning accuracy, greatly improving the usability of the entire device and the reliability of the processing process.
[0032] As Figure 1 and Figure 6 shown, one end of the outer wall of the threaded lead screw 4 is connected through the outer wall of one side of the limit component 401, and one side inside the limit component 401 is rotationally connected to one end of the outer wall of the threaded lead screw 4. The center of the outer wall of the threaded lead screw 4 is connected through the inside of one side of the feeding plate 2, and the center of the outer wall of the threaded lead screw 4 is rotationally connected to the center of the inside of the feeding plate 2 through a thread.
[0033] By fixing a separate hexagon bolt at one end of the outer wall of the threaded lead screw 4, the operator simultaneously rotates multiple threaded lead screws 4 on both sides inside the feeding plate 2 through the hexagon bolt, and adjusts the distance between the limit component 401 and the cutting plate 201 through the thread on the outer wall of the threaded lead screw 4. Then, through the contact between the outer wall of one end of the limit component 401 and one end of the material, the limitation of the material is realized, effectively improving the accuracy and stability of material processing. In actual operation, for example, when cutting a cylindrical mold, precise limitation can ensure that the length of each section of the cylindrical mold is consistent.
[0034] Working principle: After aligning the positioning groove 301 opened at the inner bottom end of the feeding plate 2 with the positioning bolt 3 fixedly connected to the top surface of the positioning seat 1, insert the plug board 302 at the center of the bottom surface of the feeding plate 2 into the opening on one side of the top surface of the positioning seat 1 through the feeding plate 2. When the inclined surface on one side of the bottom of the plug board 302 comes into contact with the inclined surface protrusion on the outer wall of the positioning plate 304, the plug board 302 pushes the positioning plate 304 along the slide rail 303 towards the positioning spring 305 through the inclined surface protrusion, causing the positioning plate 304 to compress the positioning spring 305. When the concave surface on one side inside the plug board 302 aligns with the protrusion on the outer wall of the positioning plate 304, since the positioning plate 304 loses the thrust from the plug board 302, the positioning spring 305 pushes the positioning plate 304 towards the plug board 302 through its own elasticity, enabling the positioning plate 304 to be mutually clamped with the inside of one side of the plug board 302, and thus the feeding plate 2 can be installed on one side of the top surface of the positioning seat 1. After placing the mold to be processed and cut into the circular hole at the center inside the feeding plate 2, when the mold slides to the center inside the cutting plate 201, by applying pressure to the center of the top surface of the cutting plate 201, the cutting plate 201 moves vertically towards the top surface of the positioning seat 1 along the outer wall of the limiting plate 202, and applies pressure to the top surface of the mold, causing the cutting plate 201 to cut the mold and complete the processing. When the pressure applied to the center of the top surface of the cutting plate 201 is released, through the own elasticity of the return spring 205, the cutting plate 201 is pushed above the positioning seat 1, and through the close cooperation of the limiting shaft 203 and the limiting groove 204, after the cutting plate 201 finishes processing the mold, it can complete precise and accurate automatic reset through the return spring 205. Thus, through the mutual cooperation of the positioning plate 304 and the plug board 302, rapid and reliable fixation between the feeding plate 2 and the positioning seat 1 is achieved.
[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A self-resetting cutting limit device for a mold, comprising a positioning seat (1), characterized in that: A feed plate (2) is fixedly connected to one side of the top surface of the positioning seat (1), and a cutting plate (201) is slidably connected to the center of the outer wall of the feed plate (2). The cutting plate (201) is located on one side of the top surface of the positioning seat (1), and the cutting plate (201) is slidably connected to one side of the top of the positioning seat (1) through the feed plate (2). A plurality of positioning bolts (3) are fixedly connected to both sides of the top surface of the positioning seat (1), and the positioning bolts (3) are located on one side of the inside of the feed plate (2). At the same time, a group of corresponding positioning grooves (301) are provided, and the positioning grooves (301) correspond to the positioning bolts (3), the top of the outer wall of the positioning bolts (3) is connected to the center of the inner part of the positioning grooves (301), and the two sides of the outer wall of the positioning bolts (3) are slidably connected to the two sides of the inner part of the positioning grooves (301), and the two sides of the inner part of the feed plate (2) are simultaneously rotatably connected to a group of corresponding threaded screws (4), and the outer side of the feed plate (2) is slidably connected to the limiting assembly (401) through the threaded screw (4).
2. A self-resetting cutting limit device for a mold according to claim 1, characterized in that: A group of corresponding limit plates (202) are fixedly connected to one side of the outer wall of the feed plate (2), and the limit plates (202) are located on both sides of the outer wall of the cutting plate (201), and one side of the outer wall of the cutting plate (201) is slidably connected to one side of the outer wall of the limit plates (202).
3. A self-resetting cutting limit device for a mold according to claim 2, characterized in that: A limiting shaft (203) is fixedly connected to the top of the inner part of the feed plate (2), a limiting groove (204) is provided on the top of the outer wall of the cutting plate (201), and the limiting shaft (203) is located at the bottom end of the inner part of the limiting groove (204), one end of the outer wall of the limiting shaft (203) passes through one side of the inner part of the limiting groove (204), and both sides of the outer wall of the limiting shaft (203) are slidably connected to the inner bottom end of the limiting groove (204).
4. A self-resetting cutting limit device for a mold according to claim 3, characterized in that: A return spring (205) is fixedly connected to one side of the top surface of the feed plate (2), and the return spring (205) is located between the feed plate (2) and the cutting plate (201). The top of the outer wall of the return spring (205) is fixedly connected to the center of the bottom surface of the cutting plate (201), and the cutting plate (201) is slidably connected to the top of the outer wall of the feed plate (2) via the return spring (205).
5. The self-resetting cutting limit device for a mold according to claim 1, characterized in that: The center of the bottom surface of the feed plate (2) is fixedly connected with an insert plate (302), and the insert plate (302) is located at the top end of the positioning seat (1). The bottom of the outer wall of the insert plate (302) is connected to one side of the top surface of the positioning seat (1), and the two sides of the outer wall of the insert plate (302) are slidably connected to one side of the interior of the positioning seat (1).
6. A self-resetting cutting limit device for a mold according to claim 5, characterized in that: Both sides of the inner wall of the positioning seat (1) are fixedly connected with slide rails (303), and the inner center of the positioning seat (1) is slidably connected to the positioning plate (304), one end of the outer wall of the slide rail (303) is connected through the inner side of the positioning plate (304), and the inner side of the positioning plate (304) is slidably connected to the outer wall of one side of the slide rail (303).
7. A self-resetting cutting and limiting device for a mold according to claim 6, characterized in that: A positioning spring (305) is fixedly connected to one side of the inner wall of the positioning seat (1), and one end of the outer wall of the positioning spring (305) is fixedly connected to the center of the outer wall of the positioning plate (304). The positioning plate (304) and the plug plate (302) correspond to each other, and the top of the inner wall of the plug plate (302) and the bottom surface of one side of the positioning plate (304) are in contact with each other.
8. The self-resetting cutting limit device for a mold according to claim 6, characterized in that: A pressing plate (306) is slidably connected to one side of the interior of the positioning seat (1), and one side of the bottom of the pressing plate (306) is fixedly connected to the bottom end of the outer wall of the positioning plate (304).
9. The self-resetting cutting limit device for a mold according to claim 1, characterized in that: One end of the outer wall of the threaded screw (4) is connected to the outer wall of one side of the limiting assembly (401), and the inner side of the limiting assembly (401) is rotatably connected to one end of the outer wall of the threaded screw (4). The center of the outer wall of the threaded screw (4) is connected to the inner side of the feed plate (2), and the center of the outer wall of the threaded screw (4) is rotatably connected to the inner center of the feed plate (2) via a thread.