Plastic processing hot melting riveting device
By designing a hot melt section, a mold section, and an air pump assembly, automatic feeding of plastic workpieces is achieved, solving the problem of manual feeding and improving processing efficiency and convenience.
Patent Information
- Application Number
- CN202520420993.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Currently, plastic workpieces require manual pinching and gripping to remove them from the mold after hot-melt riveting, which makes material unloading difficult and affects efficiency.
Design an assembly including a hot melt section, a mold section, and an air pump. The air pump provides air pressure to actively remove the plastic workpiece from the mold, avoiding direct contact and achieving automatic material discharge.
It improves the convenience and efficiency of riveting operations on plastic workpieces, reduces the difficulty of operation for workers, and avoids scratches caused by contact between the mold cavity and the workpiece surface.
Smart Images

Figure CN223918724U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing technology, and specifically to a plastic processing hot melt riveting device. Background Technology
[0002] In plastic processing, thermofusion riveting is a processing technology that replaces bolt assembly. It connects two plastic parts together by heating and melting plastic materials. This technology is widely used in industries such as automotive, electronics, medical, and packaging. In automobile manufacturing, thermofusion riveting is used to connect automotive parts and improve connection strength and stability. In the electronics industry, thermofusion riveting is used to manufacture circuit boards and connectors. In the medical industry, thermofusion riveting is used to manufacture medical devices and containers.
[0003] In existing plastic workpieces, after entering the positioning mold for riveting, the workpieces need to be manually squeezed and removed from the mold. In some cases, the bottom of the workpiece will generate vacuum pressure with the inner cavity of the mold, which makes it difficult for workers to unload the workpieces and affects the efficiency of unloading. Therefore, a plastic processing hot melt riveting device is proposed to provide a set of hot melt riveting devices with active material discharge for plastic workpieces. This device allows the plastic workpieces to actively leave the mold after the riveting operation, greatly increasing the convenience of plastic workpiece riveting operations and improving processing efficiency. Summary of the Invention
[0004] To address the problems in the existing technology, this utility model provides a plastic processing hot melt riveting device, which provides an active material discharge hot melt riveting device for plastic workpieces, so that the plastic workpiece actively leaves the mold after the riveting operation, greatly increasing the convenience of plastic workpiece riveting operation, while improving processing efficiency and effect.
[0005] The technical solution adopted by this utility model to solve its technical problem is a plastic processing hot melt riveting device, comprising:
[0006] The hot-melt section is used for hot-melt riveting of plastic parts;
[0007] The mold section is located on the hot melt section;
[0008] An air pump is installed on the hot melt section and connected to the mold section.
[0009] By adopting the above technical solution, a hot melt riveting device with active material discharge is provided for hot melt riveting of plastic workpieces through the components consisting of a hot melt section, a mold section and an air pump. This device will not cause contact scratches on the surface of the plastic workpieces, while greatly increasing the convenience of plastic workpiece riveting operations and improving processing efficiency.
[0010] Specifically, the mold part includes:
[0011] A positioning part is provided on the hot-melt part;
[0012] The feeding section is connected to the positioning section.
[0013] Specifically, the positioning unit includes:
[0014] Template, connected to the hot melt section;
[0015] Mold grooves are used to position plastic workpieces.
[0016] By adopting the above technical solution, the plastic workpiece to be hot-melted and riveted is positioned through the mold groove.
[0017] Specifically, the feeding section includes:
[0018] The vent is located inside the mold groove and is connected to the template.
[0019] The intake pipe connects to the exhaust nozzle;
[0020] The exhaust pipe is connected to the air pump.
[0021] External threaded connector, installed on the intake pipe;
[0022] The internal threaded connector is connected to the exhaust pipe.
[0023] By adopting the above technical solution, the plastic workpiece is actively removed from the mold after the riveting operation, making it available for workers to grab. The air pump supplies air pressure to achieve active material discharge, preventing direct contact with the plastic workpiece.
[0024] Specifically, the hot-melt section includes:
[0025] frame;
[0026] Electric cylinder, mounted on the frame;
[0027] Mounting plate, connected to the electric cylinder;
[0028] An electrically heated metal block is connected to a mounting plate.
[0029] A metal press-fit head is mounted on an electrically heated metal block.
[0030] By adopting the above technical solution, the metal pressing head is heated by an electrically heated metal block, so that the metal pressing head can press the plastic column on the workpiece with heat after pressing down, causing deformation and forming a mushroom-shaped rivet at the top of the plastic column.
[0031] Specifically, the electric cylinder has guide rods on both sides of the sleeve, the top of the guide rods penetrates the frame, and the bottom of the guide rods is fixedly connected to the mounting plate.
[0032] By adopting the above technical solution, the movement direction of the mounting plate is guided by the guide rod.
[0033] The beneficial effects of this utility model are as follows: Through the components consisting of a hot-melt section, a mold section, and an air pump, a set of hot-melt riveting devices with active material discharge is provided for hot-melt riveting of plastic workpieces. This allows the plastic workpieces to actively leave the mold after the riveting operation, making them available for workers to grab. The active material discharge is powered by air pressure supplied by the air pump, preventing direct contact with the plastic workpiece and avoiding contact scratches on the surface of the plastic workpiece. At the same time, it greatly increases the convenience of plastic workpiece riveting operations and improves processing efficiency. It solves the problem that in the past, after plastic workpieces entered the positioning mold for riveting operations, workers had to manually squeeze and grab the plastic workpieces to remove them from the mold. In some cases, the bottom of the plastic workpiece would create vacuum pressure with the inner cavity of the mold, making it difficult for workers to unload the workpieces and affecting the efficiency of unloading. Attached Figure Description
[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0035] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0036] Figure 2 This is a schematic diagram of the mold part of this utility model;
[0037] Figure 3 For the present utility model Figure 2 Enlarged diagram of point A in the middle.
[0038] In the diagram: 1. Frame; 2. Mold section; 201. Template; 202. Exhaust nozzle; 203. Air inlet pipe; 204. Exhaust pipe; 205. External threaded connector; 206. Internal threaded connector; 207. Mold groove; 3. Air pump; 4. Mounting plate; 5. Electric cylinder; 6. Guide rod; 7. Electric heating metal block; 8. Metal riveting head. Detailed Implementation
[0039] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0040] To improve the processing efficiency of plastic workpieces, such as Figure 1-3 As shown, the plastic processing hot melt riveting device of this utility model includes:
[0041] The hot-melt section is used for hot-melt riveting of plastic parts;
[0042] Mold part 2 is disposed on the hot melt part;
[0043] Air pump 3 is installed on the hot melt section and connected to mold section 2.
[0044] When in use, the mold section 2 and the air pump 3 work together to actively discharge plastic workpieces after riveting. Compared with purely manual feeding, it can effectively improve feeding efficiency and increase the ease of feeding plastic workpieces.
[0045] For example, such as Figure 2 , 3 As shown, the present invention also includes, the mold part 2 includes:
[0046] A positioning part is provided on the hot-melt part;
[0047] The feeding section is connected to the positioning section.
[0048] To position the workpiece, for example, such as Figure 2 As shown, the present invention also includes, the positioning part comprising:
[0049] Template 201 is connected to the hot melt section;
[0050] Mold groove 207 is used for positioning plastic workpieces.
[0051] When using it, select the template 201 to be used, fix the template 201 on the hot melt part, and then attach the plastic that needs to be riveted.
[0052] For proactive material handling, for example, such as Figure 2 , 3 As shown, this utility model also includes, the feeding part comprising:
[0053] The vent 202 is located inside the mold groove 207 and is connected to the template 201;
[0054] The intake pipe 203 is connected to the exhaust nozzle 202;
[0055] Exhaust pipe 204 is connected to air pump 3;
[0056] External threaded connector 205 is installed on air intake pipe 203;
[0057] The internal threaded connector 206 is connected to the exhaust pipe 204.
[0058] In use, the external threaded connector 205 of the air inlet pipe 203 on the current template 201 is threadedly connected to the internal threaded connector 206 of the exhaust pipe 204 on the air pump 3, so that the exhaust nozzle 202 of the current template 201 is connected to the air pump 3. After the plastic workpiece is riveted, the air pump 3 supplies air to the exhaust nozzle 202, so that air pressure is generated at the bottom of the mold groove 207, pushing one end of the plastic workpiece out to achieve active unloading.
[0059] For riveting plastic workpieces, exemplarily, such as... Figure 1 As shown, this utility model also includes, the heat-melting part comprising:
[0060] Rack 1;
[0061] Electric cylinder 5 is mounted on frame 1;
[0062] Mounting plate 4 is connected to electric cylinder 5;
[0063] The electrically heated metal block 7 is connected to the mounting plate 4;
[0064] A metal riveting head 8 is mounted on an electrically heated metal block 7.
[0065] In use, the metal pressing head 8 is heated by the electrically heated metal block 7, and the mounting plate 4 is pushed down by the electric cylinder 5, so that the metal pressing head 8 descends and contacts the plastic column on the plastic workpiece. As the metal pressing head 8 continues to press down, the top of the plastic column is heated and deformed to form a mushroom-shaped rivet top, thus completing the positioning between the plastic workpieces.
[0066] For example, such as Figure 1 As shown, the present invention also includes guide rods 6 on both sides of the sleeve of the electric cylinder 5, the top of the guide rods 6 passing through the frame 1, and the bottom of the guide rods 6 being fixedly connected to the mounting plate 4.
[0067] In use, this utility model involves selecting the required template 201 and fixing it onto the hot-melt section. The external threaded connector 205 of the air inlet pipe 203 on the template 201 is threadedly connected to the internal threaded connector 206 of the exhaust pipe 204 on the air pump 3, thus connecting the exhaust nozzle 202 of the template 201 to the air pump 3. The plastic workpiece to be processed is then placed in the mold groove 207. The metal pressing head 8 is heated by the electrically heated metal block 7, and the mounting plate 4 is pushed down by the electric cylinder 5, causing the metal pressing head 8 to descend and contact the plastic column on the plastic workpiece. As the metal pressing head 8 continues to press down, the top of the plastic column deforms due to heat, forming a mushroom-shaped rivet top, completing the positioning between the plastic workpieces and achieving the riveting process. After the plastic workpiece is riveted, the air pump 3 supplies air to the exhaust nozzle 202, generating air pressure at the bottom of the mold groove 207, pushing one end of the plastic workpiece out. The worker can then easily grab and remove the plastic workpiece, greatly improving the convenience of riveting operations for plastic workpieces.
[0068] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A plastic processing hot-melt riveting device characterized by comprising: The utility model relates to a plastic hot melt riveting device, including: Hot melt part for hot melt riveting of plastic; Mold part (2) is arranged on the hot melt part; Air pump (3) is arranged on the hot melt part and is connected with mold part (2).
2. The plastic processing hot-melt riveting device according to claim 1, wherein The mold part (2) includes: Positioning part is arranged on the hot melt part; Blanking part is connected with the positioning part.
3. The plastic processing hot-melt riveting device according to claim 2, wherein The positioning part includes: Template (201) is connected with the hot melt part; Mold groove (207) is used for positioning plastic workpiece.
4. The plastic processing hot-melt riveting device according to claim 3, wherein The blanking part includes: Exhaust nozzle (202) is located in mold groove (207) and is connected with template (201); Air inlet pipe (203) is connected with exhaust nozzle (202); Exhaust pipe (204) is connected with air pump (3); External thread joint (205) is arranged on air inlet pipe (203); Internal thread joint (206) is connected with exhaust pipe (204).
5. The plastic processing hot-melt riveting device according to claim 4, wherein The hot melt part includes: Frame (1); Electric cylinder (5) is arranged on frame (1); Mounting plate (4) is connected with electric cylinder (5); Electric heating metal block (7) is connected with mounting plate (4); Metal riveting head (8) is arranged on electric heating metal block (7).
6. The plastic processing hot-melt riveting device according to claim 5, wherein The sleeve of electric cylinder (5) is provided with guide rod (6) on both sides, the top of guide rod (6) penetrates frame (1), and the bottom of guide rod (6) is fixedly connected with mounting plate (4).