Plastic forming mold

Abstract

The utility model relates to the field of plastic workpiece processing, in particular to a plastic forming die which comprises a forming box and a mounting plate, a plurality of vent grooves are formed in the bottom of the forming box, two cylinders are fixedly connected onto the mounting plate, moving ends of the two cylinders are fixedly connected with a cutter, the cutter is a rectangular frame, and the vent grooves are formed in the mounting plate. Two nozzles are fixedly connected to the cutter, an air exhaust box is fixedly connected to the lower end of the forming box, an air pipe is fixedly connected to the lower end of the air exhaust box, a bearing plate is fixedly connected to the bottom of the forming box, a cutter is rotationally connected to the bearing plate, and waste on the edge of a formed plastic workpiece can be automatically cut.

Description

Technical Field

[0001] This utility model relates to the field of plastic workpiece processing, and more specifically to a plastic molding die. Background Technology

[0002] Plastic molding is the process of shaping plastics in various forms, including powders, granules, solutions, and dispersions, into products or blanks of desired shapes. There are more than thirty molding methods, among which vacuum forming is a common method. After vacuum forming, conventional vacuum forming molds require workers to use a hand cutter to remove waste material from the edges of the plastic workpiece. This method is time-consuming and labor-intensive. Therefore, this application is made to address the above-mentioned problems. Utility Model Content

[0003] This utility model provides a plastic molding die that can automatically cut off waste material from the edges of the molded plastic workpiece.

[0004] A plastic molding die includes a molding box with multiple ventilation slots at the bottom and a mounting plate. Two cylinders are fixedly connected to the mounting plate, and a cutter is fixedly connected to the moving end of the two cylinders. The cutter is a rectangular frame.

[0005] Two nozzles are fixedly connected to the cutter.

[0006] The lower end of the molding box is fixedly connected to an air extraction box, and the lower end of the air extraction box is fixedly connected to an air pipe.

[0007] A support plate is fixedly connected to the bottom of the molding box.

[0008] A cutting blade is rotatably connected to the receiving plate.

[0009] A handle is fixedly connected to the cutting knife.

[0010] The lower end of the molding box is fixedly connected to multiple support legs. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1 and Figure 2 A schematic diagram of the overall structure of a plastic molding die;

[0013] Figure 3 This is a schematic diagram of the cutter's structure;

[0014] Figure 4 This is a schematic diagram of the molding box structure;

[0015] Figure 5 This is a cross-sectional view of the vacuum chamber. Detailed Implementation

[0016] See Figure 3-5 ,

[0017] A plastic molding die includes a molding box 101 with multiple ventilation slots 102 at the bottom and a mounting plate 301. Two cylinders 302 are fixedly connected to the mounting plate 301 by bolts. The moving ends of the two cylinders 302 are fixedly connected to a cutter 303 by bolts. The cutter 303 is a rectangular frame.

[0018] Multiple ventilation slots 102 at the bottom of the molding box 101 are connected to an air pump. A plastic sheet heated to a soft state is placed on the top of the molding box 101. Air is drawn out of the molding box 101 through the multiple ventilation slots 102, causing the plastic sheet to adhere to the inner wall of the molding box 101, thus completing the thermoforming function.

[0019] The mounting plate 301 is fixed to other building structures. By controlling the extension of the moving ends of the two cylinders 302, the cutter 303 is driven to move downward, so that the cutter 303 cuts the excess part of the plastic workpiece edge. The cut waste material automatically falls down along the outer wall of the molding box 101.

[0020] See Figure 3 ,

[0021] Two nozzles 304 are fixedly connected to the cutter 303 by bolts.

[0022] Connect the two nozzles 304 to the water pump. After the vacuum forming is completed, the staff controls the two nozzles 304 to spray water, so that the water evenly covers the plastic parts, thereby promoting the rapid cooling and molding of the plastic parts, thus saving time and improving processing efficiency.

[0023] See Figure 5 ,

[0024] A vacuum box 201 is welded to the lower end of the molding box 101, and an air pipe 202 is welded to the lower end of the vacuum box 201.

[0025] Connect the air pipe 202 to the air pump, and then draw air from the air extraction box 201 through the air pipe 202. The negative pressure generated in the air extraction box 201 can draw air evenly through multiple ventilation slots 102, so that the plastic sheet can be synchronously adsorbed on the bottom of the molding box 101, avoiding the phenomenon of deformation caused by uneven air extraction.

[0026] See Figure 4 ;

[0027] The bottom of the molding box 101 is fixedly connected to the support plate 103 by bolts.

[0028] The receiving plate 103 is used to store waste materials. When the waste material at the edge of the plastic workpiece is cut off, the waste material slides down the outer wall of the molding box 101 onto the receiving plate 103 for easy centralized processing later.

[0029] See Figure 4 ,

[0030] A cutting blade 104 is rotatably connected to the receiving plate 103 via a shaft.

[0031] The cut-off waste material is rectangular and placed on the forming box 101. The workers cut the edges of the waste material by rotating the cutter 104, which makes it easier to remove the accumulated waste material.

[0032] See Figure 4 ,

[0033] The cutter 104 has a handle fixed to it by bolts, and the staff can cut the waste material by manually operating the handle.

[0034] See Figure 2 ,

[0035] The lower end of the molding box 101 is fixedly connected with multiple support legs by bolts, and the multiple support legs play a supporting role for the molding box 101.

[0036] See Figure 1 ,

[0037] The mounting plate 301 has two mounting holes. By inserting bolts into the two mounting holes, the mounting plate 301 can be fixed to other building structures.

[0038] See Figure 3 ;

[0039] The surface of the cutter 303 is coated with an anti-stick coating, which prevents soft plastic sheets from adhering to the cutter 303 and affecting the subsequent cutting effect.

[0040] See Figure 4 ;

[0041] The receiving plate 103 is sprinkled with calcium carbonate powder, which has a lubricating effect and further prevents sticking, thus avoiding the accumulation of waste material that adheres to the receiving plate 103 and is difficult to remove.

Claims

1. A plastic molding die, characterized in that: It includes a molding box (101), which has multiple ventilation slots (102) at the bottom, and a mounting plate (301). Two cylinders (302) are fixedly connected to the mounting plate (301), and a cutter (303) is fixedly connected to the moving end of the two cylinders (302). The cutter (303) is a rectangular frame.

2. The plastic molding die according to claim 1, characterized in that: Two nozzles (304) are fixedly connected to the cutter (303).

3. A plastic molding die according to claim 2, characterized in that: The lower end of the molding box (101) is fixedly connected to an air extraction box (201), and the lower end of the air extraction box (201) is fixedly connected to an air pipe (202).

4. A plastic molding die according to claim 3, characterized in that: A support plate (103) is fixedly connected to the bottom of the molding box (101).

5. A plastic molding die according to claim 4, characterized in that: A cutting blade (104) is rotatably connected to the receiving plate (103).

6. A plastic molding die according to claim 5, characterized in that: A handle is fixedly connected to the cutting knife (104).

7. A plastic molding die according to claim 6, characterized in that: The lower end of the molding box (101) is fixedly connected with multiple support legs.

8. A plastic molding die according to claim 1, characterized in that: The mounting plate (301) has two mounting holes.

9. A plastic molding die according to claim 1, characterized in that: The surface of the cutter (303) is coated with an anti-stick coating.

10. A plastic molding die according to claim 7, characterized in that: The receiving plate (103) is sprinkled with calcium carbonate powder.

Images