A plastic liner flanging thermoforming device

Abstract

The utility model relates to the technical field of plastic inner bag processing, concretely to a plastic inner bag flanging thermoforming device, including support frame, the right part of support frame is installed with the inner bag fixed ring, the left part of support frame is installed with electric push rod, and the end of electric push rod is installed with thermoplastic type flanging forming head, the inner bag fixed ring includes bottom fixed ring and the top fixed ring of hinged together, and the inner bag is placed in the bottom fixed ring by rotating and opening the top fixed ring, one side of top fixed ring is provided with fixed plate, and the middle part of fixed plate is rotatably installed with lock plate, one side of bottom fixed ring is provided with lock block, the inside of lock block is provided with mounting groove, and the lock head that is matched with lock plate is installed in mounting groove, and lock plate is locked and fixed.

Description

Technical Field

[0001] This utility model relates to the field of plastic liner processing technology, specifically a plastic liner flanging thermoforming device. Background Technology

[0002] Plastic liner flanging thermoforming equipment is used to fold and shape the edges of plastic liners by heating, extrusion, etc. Common types include: plastic expansion and flanging machine, plastic pipe flanging device, plastic expansion and flanging machine, and PTFE pipe flanging forming device, etc.

[0003] Currently, plastic pipe flanging devices mainly consist of a pipe clamping assembly, a flanging die, a screw drive assembly, a connecting assembly, and a heating system. When inserting the plastic inner liner into the pipe clamping assembly, the clearance between the clamping assembly and the inner liner is typically designed to be extremely small (generally controlled at 0.1-0.3mm) to ensure clamping stability. This means that when installing the inner liner, the operator must precisely align one end of the inner liner with the opening of the clamping assembly and maintain complete coaxiality before slowly inserting it. This process not only requires repeated adjustments to the inner liner angle, consuming a significant amount of time, but also easily leads to misalignment causing the edge of the inner liner opening to scrape against the inner wall of the clamping assembly, resulting in damage to the inner liner. The installation process is laborious and time-consuming. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a plastic inner liner flanging thermoforming device.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a plastic inner liner flanging thermoforming device, comprising a support frame, an inner liner fixing ring installed on the right side of the support frame, an electric push rod installed on the left side of the support frame, a thermoplastic flanging forming head installed at the end of the electric push rod, the inner liner fixing ring comprising a bottom fixing ring and a top fixing ring hinged together, the top fixing ring being rotated open to place the inner liner inside the bottom fixing ring, a fixing plate being provided on one side of the top fixing ring, a locking plate being rotatably installed in the middle of the fixing plate, a locking block being provided on one side of the bottom fixing ring, the locking block having an installation groove inside, and a lock head adapted to the locking plate being installed in the installation groove to lock and fix the locking plate.

[0008] Furthermore, a locking port is provided at the end of the locking plate near the lock head, and the locking plate and the lock head are fixedly connected by a plug.

[0009] Furthermore, the lock head includes a spring disposed in a mounting groove, one end of the spring is provided with a base plate that slides in the mounting groove, and the other end of the base plate is provided with a plug rod that is inserted into the lock opening.

[0010] Furthermore, a groove is provided in the middle of the locking block, and one end of the groove passes through the mounting groove, where a sliding plate is slidably installed.

[0011] Preferably, the end of the slide plate that is in the mounting groove is set on the side wall of the base plate.

[0012] Preferably, a limiting plate is also provided on one side of the top fixing ring, and one side of the limiting plate is attached to the side wall of the locking plate.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a plastic inner liner flanging thermoforming device, which has the following beneficial effects:

[0015] This plastic inner liner flanging thermoforming device uses a hinged top and bottom fixing ring to easily open the top fixing ring and place the plastic inner liner from the center of the bottom fixing ring, which is convenient and saves time and effort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the top fixing ring of this utility model that can be rotated open;

[0018] Figure 3 This is an enlarged structural schematic diagram of the bottom fixing ring and locking block of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of the spring, base plate, insert rod, and slide plate of this utility model;

[0020] Figure 5 This utility model Figure 1 A partially enlarged structural diagram of point A shown in the image;

[0021] Figure 6 This utility model Figure 2 The diagram shows a partially enlarged structural schematic at point B.

[0022] In the diagram: 1. Support frame; 2. Electric push rod; 3. Thermoplastic flange forming head; 4. Bottom fixing ring; 5. Top fixing ring; 6. Locking plate; 7. Locking block; 8. Mounting groove; 9. Locking port; 10. Spring; 11. Base plate; 12. Insert rod; 13. Slide groove; 14. Slide plate; 15. Limiting plate. Detailed Implementation

[0023] 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.

[0024] In the existing technology, a support frame 1 is included. An inner liner fixing ring is installed on the right side of the support frame 1, and an electric push rod 2 is installed on the left side of the support frame 1. A thermoplastic flanging forming head 3 is installed at the end of the electric push rod 2. The operator places the plastic inner liner into the inner liner fixing ring, and then starts the electric push rod 2. The electric push rod 2 drives the thermoplastic flanging forming head 3 to insert into the opening of the plastic inner liner, and then heats and presses it to shape it, thus performing the flanging forming work. This is the existing technology and will not be elaborated on here.

[0025] Please see Figure 1-4 This utility model discloses a plastic inner liner flanging thermoforming device. The inner liner fixing ring includes a bottom fixing ring 4 and a top fixing ring 5 hinged together. The top fixing ring 5 is rotated open, and the inner liner is placed inside the bottom fixing ring 4. The bottom fixing ring 4 has a larger opening area, and the bottom of the plastic inner liner is inserted from the center of the bottom fixing ring 4, which is convenient for the staff to place. Therefore, the staff does not need to carefully align one end of the plastic inner liner with the ring opening of the inner liner fixing ring and then insert it for installation in a seamless manner, so the installation is more worry-free.

[0026] A fixing plate is provided on one side of the top fixing ring 5. A locking plate 6 is rotatably installed in the middle of the fixing plate via a rotating shaft, bearing or bushing. A locking block 7 is provided on one side of the bottom fixing ring 4. The locking block 7 has an installation groove 8 inside, and a lock head that matches the locking plate 6 is installed in the installation groove 8 to lock and fix the locking plate 6. A lock mouth 9 is provided at the end of the locking plate 6 near the lock head. The locking plate and the lock head are fixed by insertion. The lock head moves closer to the locking plate 6 and inserts into the lock mouth 9 of the locking plate 6. At this time, the locking plate 6 no longer rotates under the restriction of the lock head, and is thus locked and fixed.

[0027] The lock head includes a spring 10 disposed in the mounting groove 8. One end of the spring 10 is provided with a base plate 11 that slides in the mounting groove 8. The spring 10 exerts a pushing force on the base plate 11, causing the base plate 11 to move in the mounting groove 8. The other end of the base plate 11 is provided with a plug rod 12 that is inserted into the lock opening 9. When the base plate 11 moves in the mounting groove 8, it drives the plug rod 12 to move towards the locking plate 6 and then inserts it into the lock opening 9.

[0028] The locking block 7 has a sliding groove 13 in the middle, and one end of the sliding groove 13 passes through the mounting groove 8. A sliding plate 14 is slidably installed in the sliding groove 13. One end of the sliding plate 14 in the mounting groove 8 is set on the side wall of the base plate 11. When the worker grasps the sliding plate 14 and slides it in the sliding groove 13, the base plate 11 and the plug rod 12 can be moved away from the locking plate 6. At this time, the locking plate 6 can be grasped and rotated, and then pulled upward to open the top fixing ring 5.

[0029] A limiting plate 15 is also provided on one side of the top fixing ring 5. One side of the limiting plate 15 is attached to the side wall of the locking plate 6, which plays a certain limiting role in the locking plate 6 and ensures its stability after locking.

[0030] In summary, when using this plastic liner flanging thermoforming device, locate the locking block 7 on one side of the bottom fixing ring 4, grasp the sliding plate 14 in the groove 13 of the locking block 7, and slide the sliding plate 14 away from the locking plate 6 along the groove 13 to drive the bottom plate 11 and the insertion rod 12 in the mounting groove 8 to move synchronously, compressing the spring 10 until the insertion rod 12 is completely disengaged from the locking hole 9 on the locking plate 6. Grasp the edge of the top fixing ring 5 and rotate it upwards to open the hinge between the top fixing ring 5 and the bottom fixing ring 4, so that the bottom fixing ring 4 is fully exposed. Then place the plastic liner at the bottom. On the fixing ring 4, gently push the inner liner to adjust its position within the bottom fixing ring 4, so that the center of the inner liner opening is basically aligned with the center of the bottom fixing ring 4. Rotate the top fixing ring 5 downwards until the top fixing ring 5 completely covers the upper part of the inner liner. Push the sliding plate 14 to drive the insertion rod 12 into the mounting groove 8. Then, the locking plate 6 on one side of the top fixing ring 5 is attached to the side of the locking block 7. Rotate the locking plate 6 so that the locking hole 9 on the locking plate 6 is aligned with the position of the insertion rod 12 in the locking block 7. Release the sliding plate 14, the spring 10 extends, and pushes the insertion rod 12 into the locking hole 9 of the locking plate 6.

[0031] 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 thermoforming device for flanging plastic inner liner, comprising a support frame (1), an inner liner fixing ring installed on the right side of the support frame (1), an electric push rod (2) installed on the left side of the support frame (1), and a thermoplastic flanging forming head (3) installed at the end of the electric push rod (2), characterized in that: The inner liner fixing ring includes a bottom fixing ring (4) and a top fixing ring (5) hinged together. Rotate to open the top fixing ring (5) and place the inner liner inside the bottom fixing ring (4). A fixing plate is provided on one side of the top fixing ring (5), and a locking plate (6) is rotatably installed in the middle of the fixing plate. A locking block (7) is provided on one side of the bottom fixing ring (4). An installation groove (8) is provided inside the locking block (7), and a lock head that matches the locking plate (6) is installed in the installation groove (8) to lock and fix the locking plate (6).

2. The plastic inner liner flanging thermoforming device according to claim 1, characterized in that: The locking plate (6) has a locking slot (9) at one end near the lock head, and the locking plate and the lock head are fixedly connected by a plug.

3. The plastic inner liner flanging thermoforming device according to claim 2, characterized in that: The lock head includes a spring (10) disposed in the mounting groove (8), one end of the spring (10) is provided with a base plate (11) that slides in the mounting groove (8), and the other end of the base plate (11) is provided with a plug rod (12) that is inserted into the lock opening (9).

4. The plastic inner liner flanging thermoforming device according to claim 3, characterized in that: A sliding groove (13) is provided in the middle of the locking block (7), and one end of the sliding groove (13) passes through the mounting groove (8). A sliding plate (14) is slidably installed in the sliding groove (13).

5. The plastic inner liner flanging thermoforming device according to claim 4, characterized in that: The end of the slide plate (14) located in the mounting groove (8) is set on the side wall of the base plate (11).

6. The plastic inner liner flanging thermoforming apparatus according to any one of claims 1-5, characterized in that: A limiting plate (15) is also provided on one side of the top fixing ring (5), and one side of the limiting plate (15) is attached to the side wall of the locking plate (6).

Images