Die punching guard for a friction press

By using a friction press mold stamping protection device, and through the cooperation of a friction disc drive device and a hydraulic cylinder, safe material handling of the friction press is achieved, solving the problem of poor material handling safety in existing technologies and improving the practicality of the equipment.

CN224389711UActive Publication Date: 2026-06-23DASHIQIAO ZHONGNING METALLURGY & MINING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DASHIQIAO ZHONGNING METALLURGY & MINING CO LTD
Filing Date
2025-04-29
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing friction presses have safety issues during material handling, failing to guarantee user safety.

Method used

A protective device for stamping molds of a friction press was designed. By using a friction disc drive device and a flywheel in combination, the rotation direction of the flywheel is adjusted. Combined with the control of a hydraulic cylinder and a position sensor, the safe retraction of the stamping head and the automated operation of the discharge structure are realized, ensuring the safety of the material handling process.

Benefits of technology

It enables automatic material discharge after stamping, avoiding injury to users in case the stamping head breaks or falls accidentally, and improving the safety and practicality of the material handling process.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224389711U_ABST
    Figure CN224389711U_ABST
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Abstract

The utility model discloses a kind of friction press die stamping protection devices, including base, the surface of base is symmetrically equipped with two mainboards, fixedly assembled with nut block between two mainboards, the outer side end of two mainboards is equipped with support, the inner wall of support is equipped with friction disc driving device, the inner wall of nut block is screwed with lead screw, the surface of lead screw is fixedly assembled with flywheel, when stamping head and lower end in place sensor contact, retract by controller trigger hydraulic cylinder, stamping head slowly drops along with hydraulic cylinder retraction, after contact with stamping platform discharge structure, effective stamping work is carried out, when stamping is completed, stamping head rises and contacts upper end in place sensor, at this time, extend by controller trigger hydraulic cylinder, when stamping head is accidentally broken or falls, the clamping plate of outer side end is limited by the piston rod of hydraulic cylinder, guarantee the safety of user's material taking process.
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Description

Technical Field

[0001] This utility model relates to the field of friction press technology, specifically to a friction press mold stamping protection device. Background Technology

[0002] Friction presses are mechanical devices that use the principle of friction transmission to achieve pressure processing. Their core working principle is to convert rotary motion into linear reciprocating motion of a slider through the contact transmission between the friction wheel and the flywheel, thereby realizing the stamping, forging and other processing of workpieces. However, due to damage or misoperation, existing friction presses cannot guarantee the safety of users when unloading materials, resulting in poor practicality. Utility Model Content

[0003] The purpose of this invention is to provide a protective device for the stamping of friction press molds, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a friction press mold stamping protection device, comprising a base, two main plates symmetrically mounted on the surface of the base, a threaded nut fixedly mounted between the two main plates, a bracket mounted on the outer end of each of the two main plates, a friction disc drive device mounted on the inner wall of the bracket, a lead screw screwed to the inner wall of the threaded nut, a flywheel fixedly mounted on the surface of the lead screw, the flywheel matching the friction disc drive device, a stamping head rotatably mounted on the lower end of the lead screw, the stamping head slidingly engaging with the two main plates, and symmetrically mounted on the outer wall of one side of the main plate... Equipped with two positioning sensors, a trigger plate is fixedly mounted on the middle of one side wall of the stamping head, the trigger plate is gap-fitted to the outer side wall of the main board, and the trigger plate matches the two positioning sensors. A clamping plate is fixedly mounted on the lower part of the other side wall of the stamping head. A hydraulic cylinder is fixedly mounted on the inner wall of the base, the hydraulic cylinder is located below the clamping plate and matches the clamping plate. A stamping table discharge structure is installed through the inner wall of the base. A horizontal plate is fixedly mounted on the lower side of the inner wall of the base. Two limiting plates are symmetrically mounted on the surface of the horizontal plate. A wedge block is inserted between the two limiting plates, and the wedge block matches the stamping table discharge structure.

[0005] Preferably, the stamping table discharge structure includes a stamping table, which is fixedly mounted on the surface of the base. A discharge plate is inserted into the inner wall of the stamping table. Two slide rods are symmetrically mounted on the lower end of the discharge plate. Both slide rods pass through the stamping table and the base, and both slide rods are fitted and matched with the wedge block.

[0006] Preferably, rubber pads are fixedly mounted on both the upper and lower surfaces of the trigger plate, and the two rubber pads are respectively matched with the two positioning sensors.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: The base ensures equipment stability; the main board connects to the bracket and the lead screw seat; and through the action of the friction drive device and its cooperation with the flywheel, the flywheel can be adjusted to rotate in both directions, driving the lead screw to move up and down within the lead screw seat, thus adjusting the stamping head for stamping. The friction disc drive device includes two friction discs, and different friction discs can be adjusted to fit the flywheel using existing adjustment components, thereby adjusting the flywheel's rotation direction. When the stamping head contacts the lower end positioning sensor, the controller... The hydraulic cylinder is triggered to retract, and the punch head slowly descends with it. After contacting the material discharge structure of the punching table, it performs effective punching. After punching is completed, the punch head rises and contacts the upper positioning sensor. At this time, the controller triggers the hydraulic cylinder to extend. If the punch head accidentally breaks or falls, the outer end of the clamping plate will be restricted by the piston rod of the hydraulic cylinder to ensure the safety of the user during the material handling process. When handling the material, the user pushes the wedge block, which maintains a fixed trajectory displacement in the limiting plate and triggers the material discharge structure of the punching table to actively discharge the material. It is convenient to use and highly practical. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0009] Figure 2 This is a front view of the present invention;

[0010] Figure 3 This is a three-dimensional sectional view of the material output structure of the stamping table.

[0011] In the diagram: 1-base, 2-main board, 3-bracket, 4-friction disc drive device, 5-flywheel, 6-lead screw, 7-lead screw seat, 8-punch head, 9-punch table discharge structure, 91-punch table, 92-discharge plate, 93-slide bar, 10-position sensor, 11-trigger plate, 12-clamping plate, 13-hydraulic cylinder, 14-horizontal plate, 15-limiting plate, 16-wedge block. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figure 1-3This utility model provides a protective device for stamping molds of a friction press, including a base 1. Two main plates 2 are symmetrically mounted on the surface of the base 1. A nut 7 is fixedly mounted between the two main plates 2. A bracket 3 is mounted on the outer end of each of the two main plates 2. A friction disc drive device 4 is mounted on the inner wall of the bracket 3. A lead screw 6 is screwed to the inner wall of the nut 7. A flywheel 5 is fixedly mounted on the surface of the lead screw 6. The flywheel 5 matches the friction disc drive device 4. A stamping head 8 is rotatably mounted on the lower end of the lead screw 6. The stamping head 8 is slidably engaged with the two main plates 2. Two position sensors 10 are symmetrically mounted on the outer wall of one side of the main plate 2. One side of the stamping head 8... A trigger plate 11 is fixedly mounted in the middle of the side wall. The trigger plate 11 is fitted with the outer side wall of the main board 2 with a clearance. The trigger plate 11 is matched with two positioning sensors 10. A clamping plate 12 is fixedly mounted on the lower part of the other side wall of the punch head 8. A hydraulic cylinder 13 is fixedly mounted on the inner wall of the base 1. The hydraulic cylinder 13 is located below the clamping plate 12 and matches the clamping plate 12. A punch table discharge structure 9 is installed through the inner wall of the base 1. A horizontal plate 14 is fixedly mounted on the lower side of the inner wall of the base 1. Two limiting plates 15 are symmetrically mounted on the surface of the horizontal plate 14. A wedge block 16 is inserted between the two limiting plates 15. The wedge block 16 matches the punch table discharge structure 9.

[0014] The base 1 ensures equipment stability. The main board 2 connects to the bracket 3 and the lead screw seat 7. Through the friction drive device 4 and its cooperation with the flywheel 5, the flywheel 5 can be adjusted to rotate in both directions, causing the lead screw 6 to move up and down within the lead screw seat 7. This adjusts the stamping head 8 for stamping operations. The friction drive device 4 contains two friction discs; different discs can be adjusted to contact the flywheel 5 using existing adjustment components, thereby adjusting the flywheel 5's rotation direction. When the stamping head 8 contacts the lower end positioning sensor 10, the controller triggers the hydraulic cylinder 13 to retract, thus retracting the stamping head. 8. As the hydraulic cylinder 13 retracts and slowly descends, it comes into contact with the stamping table's discharge structure 9 and performs effective stamping. After stamping is completed, the stamping head 8 rises and contacts the upper positioning sensor 10. At this time, the controller triggers the hydraulic cylinder 13 to extend. If the stamping head 8 breaks or falls accidentally, the outer end of the clamping plate 12 will be restricted by the piston rod of the hydraulic cylinder 13 to ensure the safety of the user during the material handling process. When handling the material, the user pushes the wedge block 16. The wedge block 16 maintains a fixed trajectory displacement in the limiting plate 15 and triggers the stamping table's discharge structure 9 to actively discharge the material. It is convenient to use and highly practical.

[0015] The stamping table discharge structure 9 includes a stamping table 91, which is fixedly mounted on the surface of the base 1. A discharge plate 92 is inserted into the inner wall of the stamping table 91. Two slide rods 93 are symmetrically mounted at the lower end of the discharge plate 92. Both slide rods 93 pass through the stamping table 91 and the base 1, and both slide rods 93 are fitted and matched with the wedge block 16.

[0016] After the stamping work is completed, the raw material is located in the stamping table 91. At this time, the user pushes the wedge block 16. The wedge block 16 maintains a fixed trajectory displacement in the limiting plate 15, triggers the slide bar 93 to move upward, and pushes the discharge plate 92 to move upward, and pushes the material to facilitate discharge.

[0017] Rubber pads are fixedly mounted on both the upper and lower surfaces of the trigger plate 11, and the two rubber pads are respectively matched with the two position sensors 10.

[0018] The rubber pad serves to protect the positioning sensor 10.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die punching guard for a friction press, characterized by: The system includes a base (1), on which two main plates (2) are symmetrically mounted. A nut seat (7) is fixedly mounted between the two main plates (2). A bracket (3) is mounted on the outer end of each of the two main plates (2). A friction disc drive device (4) is mounted on the inner wall of the bracket (3). A lead screw (6) is screwed onto the inner wall of the nut seat (7). A flywheel (5) is fixedly mounted on the surface of the lead screw (6). The flywheel (5) matches the friction disc drive device (4). A punch head (8) is rotatably mounted on the lower end of the lead screw (6). The punch head (8) is slidably engaged with the two main plates (2). Two position sensors (10) are symmetrically mounted on the outer wall of one side of the main plate (2). A [missing information - likely a device or component] is fixedly mounted on the middle of one side wall of the punch head (8). A trigger plate (11) is fitted with the outer wall of the main board (2) with a clearance. The trigger plate (11) is matched with two positioning sensors (10). A clamping plate (12) is fixedly installed on the lower part of the other side wall of the stamping head (8). A hydraulic cylinder (13) is fixedly installed on the inner wall of the base (1). The hydraulic cylinder (13) is located below the clamping plate (12) and matches the clamping plate (12). A stamping table discharge structure (9) is installed through the inner wall of the base (1). A horizontal plate (14) is fixedly installed on the lower side of the inner wall of the base (1). Two limiting plates (15) are symmetrically installed on the surface of the horizontal plate (14). A wedge block (16) is inserted between the two limiting plates (15). The wedge block (16) matches the stamping table discharge structure (9).

2. A die punching guard for a friction press as defined in claim 1, wherein: The stamping table discharge structure (9) includes a stamping table (91), which is fixedly mounted on the surface of the base (1). A discharge plate (92) is inserted into the inner wall of the stamping table (91). Two slide rods (93) are symmetrically mounted at the lower end of the discharge plate (92). Both slide rods (93) pass through the stamping table (91) and the base (1). Both slide rods (93) are fitted and matched with the wedge block (16).

3. A die punching guard for a friction press as defined in claim 1, wherein: Both the upper and lower surfaces of the trigger plate (11) are fixedly fitted with rubber pads, and the two rubber pads are respectively matched with the two position sensors (10).