PP sheet stamping equipment convenient to demould

By introducing a damping component and a motor drive structure into the PP sheet stamping equipment, the problem of difficult demolding caused by vacuum adsorption of PP sheets is solved, realizing a convenient demolding process and ensuring smooth sheet removal and safe operation.

CN224116329UActive Publication Date: 2026-04-14NANJING TONGNAN ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing PP sheet stamping equipment, PP sheets are easily adhered to the mold due to vacuum during the stamping process, making them difficult to remove and causing inconvenience in demolding.

Method used

The actuation assembly includes a first cylinder, slide bar, piston, lifting plate, and push rod. Through the cooperation of the cylinder and air pipe, the vacuum-state PP sheet is actuated. The reciprocating screw and guide rod driven by the motor ensure smooth demolding of the sheet.

Benefits of technology

It effectively solves the problem of PP sheets being difficult to remove from the mold, avoids the stacking and adsorption of sheets, and improves the convenience and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides PP (polypropylene) sheet stamping equipment convenient to demould, and relates to the technical field of sheet stamping, the PP sheet stamping equipment comprises a base and a portal frame, a first leather plug is slidably connected in a first cylinder, one end of the first leather plug is fixedly connected with a first sliding rod, one end of the first sliding rod is fixedly connected with a lifting plate, and the lifting plate is fixedly connected with a second cylinder. A groove is formed in the top of the base, a second air cylinder is embedded in the inner top of the groove, a second leather plug is slidably connected to the inner wall of the second air cylinder, a second sliding rod is fixedly connected to one end of the second leather plug, an abutting plate is fixedly connected to one end of the second sliding rod, and a plurality of ejector rods are fixedly connected to the top of the abutting plate. A PP sheet needing to be stamped is moved to a proper position through the moving assembly, the PP sheet is stamped through the stamping assembly, the PP sheet is jacked up through the driving assembly, and the situation that the PP sheet is not easy to take out due to vacuum generated during stamping is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of sheet stamping technology, specifically a PP sheet stamping equipment that facilitates demolding. Background Technology

[0002] PP sheet (polypropylene sheet) is a type of plastic sheet made primarily of polypropylene (PP). Due to its advantages such as being lightweight, chemically resistant, and recyclable, it is widely used in packaging, medical, food containers, and industrial components. PP sheet stamping equipment is a specialized piece of equipment used for punching, forming, cutting, or embossing PP plastic sheets, and it is widely used in packaging, automotive, electronics, and medical industries.

[0003] Most stamping equipment on the market can effectively stamp PP sheets, but during the stamping process, the PP sheets are pressed into a vacuum and adsorbed onto the mold. When users remove the stamped PP sheets, the vacuum adsorption makes extraction inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a PP sheet stamping equipment that facilitates demolding, thereby solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A PP sheet stamping equipment for easy demolding includes a base and a gantry frame. The top of the gantry frame is provided with a stamping assembly for stamping PP sheets. The interior of the base is provided with a pusher assembly for ejecting the stamped PP sheets. A moving assembly for loading and unloading PP sheets is also provided on the top of the base near the gantry frame.

[0007] The actuating assembly includes a first cylinder fixedly installed at the top of the gantry frame. A first piston is slidably connected inside the first cylinder. A first slide rod is fixedly connected to one end of the first piston. A lifting plate is fixedly connected to one end of the first slide rod. A groove is formed at the top of the base. A second cylinder is embedded in the top of the groove. A second piston is slidably connected to the inner wall of the second cylinder. A second slide rod is fixedly connected to one end of the second piston. A stop plate is fixedly connected to one end of the second slide rod. Several push rods are fixedly connected to the top of the stop plate. This actuating assembly can effectively actuate the PP sheet in a vacuum state, thereby facilitating the user's extraction.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: a vent pipe is fixedly connected through the outer wall of the first cylinder, and the other end of the vent pipe is installed through the interior of the second cylinder.

[0010] In one alternative embodiment: the stamping assembly includes a motor fixedly mounted on the top of the gantry frame, a reciprocating lead screw fixedly connected to the drive end of the motor, the reciprocating lead screw being threadedly connected to the lifting plate, the other end of the reciprocating lead screw being fixedly connected to the top of the base, and a stamping plate fixedly connected to the bottom of the lifting plate; the stamping assembly can effectively stamp the PP sheet on the sheet box, thereby making the PP sheet achieve the desired shape.

[0011] In one alternative: a guide rod is fixedly connected to the inner top of the gantry away from the reciprocating screw, the other end of the guide rod is fixedly connected to the top of the base, and the guide rod and the lifting plate are slidably connected.

[0012] In one alternative embodiment: the moving assembly includes a fixed plate fixedly mounted on the top of the base, an electric push rod fixedly connected to one side of the fixed plate, a connecting rod fixedly connected to the drive end of the electric push rod, and a straightening plate fixedly connected to the top of the base near the groove; the moving assembly can effectively transport PP sheets to the processing position, thereby avoiding unnecessary harm to the human body due to user negligence.

[0013] In one alternative: one end of the connecting rod is fixedly connected to a sheet box, and the inside of the sheet box has a placement slot.

[0014] In one alternative: the gantry frame is fixedly mounted on top of the base.

[0015] In one alternative: a plurality of holes matching the top rod are provided through the bottom of the sheet box.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, a motor drives a reciprocating screw to rotate, which in turn drives a lifting plate to rotate. A guide rod limits the lifting plate, and the rising of the lifting plate moves the first sliding rod. The first sliding rod moves the first piston, which in turn moves the air inside the first cylinder. The air inside the first cylinder is guided through a vent pipe, which in turn moves the second piston. The second piston moves the second sliding rod, which in turn moves the abutment plate, which in turn moves the top rod. This effectively achieves the function of making the PP sheet difficult to remove, and better avoids the situation where the PP sheet is not removed in time and causes the sheets to overlap and adhere together. Attached Figure Description

[0018] Figure 1 This utility model provides a three-dimensional structural diagram of a PP sheet stamping equipment that facilitates demolding;

[0019] Figure 2 This utility model provides a schematic diagram of the mounting structure of the straightening plate for a PP sheet stamping equipment that facilitates demolding;

[0020] Figure 3 This utility model presents a cross-sectional structural diagram of a PP sheet stamping equipment that facilitates demolding.

[0021] Legend:

[0022] 1. Base; 2. Stamping assembly; 201. Motor; 202. Reciprocating lead screw; 203. Guide rod; 204. Lifting plate; 3. Abutting assembly; 301. First cylinder; 302. First piston; 303. First slide rod; 304. Air pipe; 305. Second piston; 306. Second slide rod; 307. Abutting plate; 308. Push rod; 4. Moving assembly; 401. Electric push rod; 402. Fixing plate; 403. Sheet box; 404. Straightening plate. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1

[0026] Please see Figure 1 This utility model provides a technical solution: a PP sheet stamping equipment for easy demolding, including a base 1 and a gantry frame. The top of the gantry frame is provided with a stamping component 2 for stamping PP sheets. The interior of the base 1 is provided with a pusher component 3 for ejecting the stamped PP sheets. On the side near the gantry frame, on the top of the base 1, there is also a moving component 4 for loading and unloading PP sheets.

[0027] The abutment assembly 3 includes a first cylinder 301 fixedly installed on the top of the gantry frame. A first piston 302 is slidably connected inside the first cylinder 301. A first slide rod 303 is fixedly connected to one end of the first piston 302. A lifting plate 204 is fixedly connected to one end of the first slide rod 303. A groove is provided on the top of the base 1. A second cylinder is embedded in the top of the groove. A second piston 305 is slidably connected to the inner wall of the second cylinder. A second slide rod 306 is fixedly connected to one end of the second piston 305. A stop plate 307 is fixedly connected to one end of the second slide rod 306. A plurality of push rods 308 are fixedly connected to the top of the stop plate 307.

[0028] A vent pipe 304 is fixedly connected through the outer wall of the first cylinder 301, and the other end of the vent pipe 304 is installed through the inside of the second cylinder.

[0029] After stamping, the lifting plate 204 rises due to the characteristics of the reciprocating screw 202. The lifting plate 204 moves the first slide rod 303, which in turn moves the first piston 302, thus compressing the air inside the first cylinder 301. The air is then transported to the second cylinder through the vent pipe 304. The air abuts against the second piston 305, which in turn moves the second slide rod 306. The second slide rod 306 moves the abutment plate 307, which in turn moves several dry push rods 308. The interaction between the push rods 308 and the holes prevents the PP sheet from adhering to the sheet box 403. At this point, the electric push rod 401 resets the connecting rod and the sheet box 403, allowing the user to remove the stamped PP sheet.

[0030] Example 2

[0031] Please see Figure 2 The stamping assembly 2 includes a motor 201 fixedly installed on the top of the gantry frame. The drive end of the motor 201 is fixedly connected to a reciprocating screw 202. The reciprocating screw 202 is threadedly connected to the lifting plate 204. The other end of the reciprocating screw 202 is fixedly connected to the top of the base 1. The bottom of the lifting plate 204 is fixedly connected to a stamping plate.

[0032] A guide rod 203 is fixedly connected to the top of the gantry frame away from the reciprocating screw 202. The other end of the guide rod 203 is fixedly connected to the top of the base 1. The guide rod 203 and the lifting plate 204 are slidably connected.

[0033] When the sheet box 403 reaches the appropriate position, the motor 201 drives the reciprocating screw 202 to rotate, which in turn drives the lifting plate 204 to rotate. The guide rod 203 limits the lifting plate 204, causing it to move up and down. The lifting plate 204 drives the mold to move down, effectively realizing the function of stamping the PP sheet, while also providing power for the pusher 3.

[0034] Example 3

[0035] Please see Figure 3 The moving component 4 includes a fixed plate 402 fixedly installed on the top of the base 1. An electric push rod 401 is fixedly connected to one side of the fixed plate 402. A connecting rod is fixedly connected to the drive end of the electric push rod 401. A straightening plate 404 is also fixedly connected near the groove on the top of the base 1.

[0036] One end of the connecting rod is fixedly connected to a sheet box 403, and the inside of the sheet box 403 is provided with a placement slot;

[0037] Several holes matching the top rod 308 are provided at the bottom of the sheet box 403;

[0038] When stamping is required, the user places the PP sheet to be stamped into the sheet box 403, starts the electric push rod 401, which drives the connecting rod to move, which in turn drives the sheet box 403 to move, and the sheet box 403 to move the sheet. When the PP sheet is not fully placed into the sheet box 403, the straightening plate 404 guides the PP sheet into the appropriate position, effectively avoiding unnecessary injury to the user due to improper operation, and facilitating the loading and unloading of PP sheets.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A PP sheet stamping machine for easy demolding, comprising a base (1) and a gantry frame, characterized in that: The top of the gantry is provided with a stamping assembly (2) for stamping PP sheets, and the interior of the base (1) is provided with a push assembly (3) for pushing out the stamped PP sheets. On the side near the gantry, on the top of the base (1), there is also a moving assembly (4) for loading and unloading PP sheets. The abutment assembly (3) includes a first cylinder (301) fixedly installed on the top of the gantry frame. A first piston (302) is slidably connected inside the first cylinder (301). A first slide rod (303) is fixedly connected to one end of the first piston (302). A lifting plate (204) is fixedly connected to one end of the first slide rod (303). A groove is provided on the top of the base (1). A second cylinder is embedded in the top of the groove. A second piston (305) is slidably connected to the inner wall of the second cylinder. A second slide rod (306) is fixedly connected to one end of the second piston (305). A stop plate (307) is fixedly connected to one end of the second slide rod (306). A plurality of push rods (308) are fixedly connected to the top of the stop plate (307).

2. The PP sheet stamping equipment for easy demolding according to claim 1, characterized in that: A vent pipe (304) is fixedly connected through the outer wall of the first cylinder (301), and the other end of the vent pipe (304) is installed through the inside of the second cylinder.

3. The PP sheet stamping equipment for easy demolding according to claim 1, characterized in that: The stamping assembly (2) includes a motor (201) fixedly installed on the top of the gantry frame. The drive end of the motor (201) is fixedly connected to a reciprocating lead screw (202). The reciprocating lead screw (202) is threadedly connected to the lifting plate (204). The other end of the reciprocating lead screw (202) is fixedly connected to the top of the base (1). The bottom of the lifting plate (204) is fixedly connected to a stamping plate.

4. The PP sheet stamping equipment for easy demolding according to claim 3, characterized in that: A guide rod (203) is fixedly connected to the inner top of the gantry away from the reciprocating screw (202). The other end of the guide rod (203) is fixedly connected to the top of the base (1). The guide rod (203) and the lifting plate (204) are slidably connected.

5. The PP sheet stamping equipment for easy demolding according to claim 1, characterized in that: The moving component (4) includes a fixed plate (402) fixedly installed on the top of the base (1). An electric push rod (401) is fixedly connected to one side of the fixed plate (402). A connecting rod is fixedly connected to the driving end of the electric push rod (401). A straightening plate (404) is also fixedly connected to the top of the base (1) near the groove.

6. The PP sheet stamping equipment for easy demolding according to claim 5, characterized in that: One end of the connecting rod is fixedly connected to a sheet box (403), and the inside of the sheet box (403) is provided with a placement slot.

7. The PP sheet stamping equipment for easy demolding according to claim 1, characterized in that: The gantry frame is fixedly installed on the top of the base (1).

8. A PP sheet stamping equipment for easy demolding according to claim 6, characterized in that: Several holes matching the top rod (308) are provided through the bottom of the sheet box (403).