Plastic uptake forming machine facilitating mold replacement

Abstract

The utility model provides a plastic uptake forming machine convenient for replacing a mold, which belongs to the field of environment detection and comprises a support, a mounting frame is mounted on the support, the mold is mounted in the mounting frame, a pressing frame capable of moving up and down and extruding materials is arranged above the mold, and the pressing frame is connected with the support. The mold is connected with the mounting frame through four connecting mechanisms; the connecting mechanism comprises a lock groove formed in the mold, a lock pin which is arranged in a sliding mode and cannot be separated is arranged on the installation frame in a penetrating mode, the lock pin is connected into the lock groove in a sliding mode, an installation column is installed on the installation frame, a check block is installed on the installation column, a torsional spring is installed on the check block and the installation frame, and the check block abuts against the lock pin. The die is convenient to disassemble and assemble, the operation is simple and convenient, external tools are not needed, the labor amount of workers is greatly reduced, and the replacement efficiency is also improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming machine technology, and in particular to a vacuum forming machine that is easy to change molds. Background Technology

[0002] A vacuum forming machine is a device that uses thermoplastic sheets (such as PVC, PET, PS, PP, etc.) to form three-dimensional products by bonding the sheets to the surface of a mold through heat softening, vacuum adsorption, or air pressure forming processes.

[0003] When using the same model of vacuum forming machine, it is necessary to change the mold, that is, to use a different type of mold cavity or mold. For example, the same model of suitcase mold has the same size, but the external texture is different, such as vertical stripes or cross stripes. Therefore, for the same model of vacuum forming machine, only the mold needs to be changed.

[0004] However, current molds are mostly fixed with bolts, which ensures the stability of the installation, but changing the mold requires tools and is time-consuming and labor-intensive, increasing the workload and labor burden of operators. Therefore, this application proposes a vacuum forming machine that facilitates mold changing. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a vacuum forming machine that is easy to change molds.

[0006] An embodiment of this utility model provides a vacuum forming machine that facilitates mold changing, comprising:

[0007] A bracket is provided, on which an installation frame is mounted, and a mold is installed inside the installation frame. Above the mold is a pressure frame that can move up and down to squeeze the material. The mold is connected to the installation frame through four connecting mechanisms.

[0008] The connecting mechanism includes a locking groove on the mold, a sliding and non-detachable locking pin through the mounting frame, the locking pin being slidably connected in the locking groove, a mounting post on the mounting frame, a stop on the mounting post, a torsion spring on the stop and the mounting frame, and the stop abutting against the locking pin.

[0009] Furthermore, four support columns are installed on the bracket, and mounting plates are fixed to the upper ends of the four support columns. A driving component is installed on the mounting plate, and a driving rod is fixed to the output end of the driving component. A connecting plate is fixed on the driving rod, and the pressure frame is fixed to the outside of the connecting plate.

[0010] Furthermore, the connecting plate is welded to the pressure frame, and the bottom of the connecting plate is higher than the bottom of the pressure frame.

[0011] Furthermore, four guide blocks are fixed on the pressure frame, and the support column passes through the guide blocks and is slidably connected to them.

[0012] Furthermore, the mounting frame has a through hole, and the mounting frame has a limiting groove that communicates with and is coaxial with the through hole. The inner diameter of the limiting groove is larger than the inner diameter of the through hole, and the locking pin passes through the through hole and is slidably connected to it.

[0013] Furthermore, a limiting ring is slidably connected within the limiting groove, and the limiting ring is sleeved around the locking pin and fixedly connected to it.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention facilitates the assembly and disassembly of molds, is simple and convenient to operate, requires no external tools, greatly reduces the workload of workers, and improves replacement efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a vacuum forming machine that facilitates mold changing, as described in an embodiment of this utility model.

[0017] Figure 2 This is a front view of a vacuum forming machine with convenient mold changing, as described in an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the pressure frame in a vacuum forming machine that facilitates mold changing, as described in an embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the locking groove in a vacuum forming machine that facilitates mold changing, as described in an embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the connecting mechanism in a vacuum forming machine that facilitates mold changing, as described in an embodiment of this utility model.

[0021] In the above attached figures: 1 bracket, 2 mounting frame, 3 support column, 4 guide block, 5 pressure frame, 6 mounting plate, 7 driving component, 8 driving rod, 9 torsion spring, 10 mold, 11 connecting plate, 12 locking groove, 13 limiting groove, 14 through hole, 15 stop block, 16 locking pin, 17 limiting ring, 18 mounting column. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-5 As shown in the figure, this utility model embodiment proposes a vacuum forming machine that facilitates mold changing, comprising:

[0024] A bracket 1 is provided, on which a mounting frame 2 is installed. A mold 10 is installed inside the mounting frame 2. Above the mold 10 is a pressure frame 5 that can move up and down to compress the material. Four support columns 3 are installed on the bracket 1. A mounting plate 6 is fixed to the upper end of the four support columns 3. A driving component 7 is installed on the mounting plate 6. The driving component 7 can be a hydraulic cylinder or an electric push rod. A driving rod 8 is fixed to the output end of the driving component 7. A connecting plate 11 is fixed to the driving rod 8. The pressure frame 5 is fixed to the outside of the connecting plate 11. Thus, the driving component 7 drives the connecting plate 11 to move up and down, which in turn drives the pressure frame 5 to move up and down.

[0025] To prevent the connecting plate 11 from contacting the heated material, the connecting plate 11 is welded to the pressure frame 5, and the bottom of the connecting plate 11 is higher than the bottom of the pressure frame 5. The mold 10 is connected to an external vacuum device. After the heated material is pressed, the vacuum device works to make the heated material stick to the inner wall of the mold 10, thus achieving vacuum forming.

[0026] To ensure the stable up-and-down movement of the pressure frame 5, four guide blocks 4 are fixed on the pressure frame 5. The support column 3 passes through the guide block 4 and is slidably connected to it, so as to guide the pressure frame 5 and ensure its stable up-and-down movement.

[0027] The mold 10 is connected to the mounting frame 2 via four connecting mechanisms. The connecting mechanisms include a locking groove 12 on the mold 10, a sliding locking pin 16 that cannot be disengaged through the mounting frame 2, a through hole 14 through the mounting frame 2, and a limiting groove 13 that communicates with and is coaxial with the through hole 14. The inner diameter of the limiting groove 13 is larger than the inner diameter of the through hole 14. The locking pin 16 passes through the through hole 14 and is slidably connected to it. A limiting ring 17 is slidably connected inside the limiting groove 13. The limiting ring 17 is sleeved on the outside of the locking pin 16 and is fixedly connected to it. In this way, the locking pin 16 cannot move outward and disengage from the through hole 14, preventing the locking pin 16 from falling off and being lost. It also eliminates the need for subsequent installation and is convenient to use.

[0028] The locking pin 16 is slidably connected in the locking groove 12. The mounting frame 2 is equipped with a mounting post 18, and a stop 15 is installed on the mounting post 18. A torsion spring 9 is installed on the stop 15 and the mounting frame 2. The stop 15 abuts against the locking pin 16, thus locking the mold 10.

[0029] When mold 10 needs to be replaced, the operator manually rotates the stop block 15 to prevent it from contacting the locking pin 16, and then pulls the locking pin 16 outward until it can no longer move. The stop block 15 is then released, and under the action of the torsion spring 9, the stop block 15 is reset and abuts against the locking pin 16, thus limiting the locking pin 16 and making it difficult for it to move. At this time, the locking pin 16 is disengaged from the locking groove 12. By processing the locking pins 16 one by one, the mold 10 can be unlocked. The mold 10 can be disassembled by moving it upward, and then the mold 10 with a different mold groove can be replaced.

[0030] This utility model is a direct-forming vacuum forming mold. For molds that are formed by lifting and then vacuum forming under negative pressure, the connecting mechanism of this application can also be used to complete the assembly and disassembly.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vacuum forming machine that facilitates mold changing, characterized in that, include: A bracket (1) is provided, on which an installation frame (2) is installed. A mold (10) is installed inside the installation frame (2). A pressure frame (5) that can move up and down to squeeze the material is provided above the mold (10). The mold (10) is connected to the installation frame (2) through four connecting mechanisms. The connecting mechanism includes a locking groove (12) provided on the mold (10), a sliding and non-detachable locking pin (16) passing through the mounting frame (2), the locking pin (16) being slidably connected in the locking groove (12), a mounting post (18) being mounted on the mounting frame (2), a stop block (15) being mounted on the mounting post (18), a torsion spring (9) being mounted on the stop block (15) and the mounting frame (2), and the stop block (15) abutting against the locking pin (16).

2. The vacuum forming machine with convenient mold changing according to claim 1, characterized in that, in: Four support columns (3) are installed on the bracket (1). An installation plate (6) is fixed to the upper end of the four support columns (3). A driving component (7) is installed on the installation plate (6). A driving rod (8) is fixed to the output end of the driving component (7). A connecting plate (11) is fixed to the driving rod (8). The pressure frame (5) is fixed to the outside of the connecting plate (11).

3. The vacuum forming machine with convenient mold changing according to claim 2, characterized in that, in: The connecting plate (11) is welded to the pressure frame (5), and the bottom of the connecting plate (11) is higher than the bottom of the pressure frame (5).

4. The vacuum forming machine with convenient mold changing according to claim 2, characterized in that, in: Four guide blocks (4) are fixed on the pressure frame (5), and the support column (3) passes through the guide blocks (4) and is slidably connected to them.

5. A vacuum forming machine with convenient mold changing according to claim 1, characterized in that, in: The mounting frame (2) has a through hole (14) and a limiting groove (13) that communicates with and is coaxial with the through hole (14). The inner diameter of the limiting groove (13) is larger than the inner diameter of the through hole (14). The locking pin (16) passes through the through hole (14) and is slidably connected to it.

6. A vacuum forming machine with convenient mold changing according to claim 5, characterized in that, in: A limiting ring (17) is slidably connected inside the limiting groove (13), and the limiting ring (17) is sleeved on the outside of the locking pin (16) and fixedly connected to it.

Images