Plastic vacuum forming machine with preheating function

Abstract

The utility model relates to the field of plastic vacuum forming machines, and discloses a plastic vacuum forming machine with a preheating function, which comprises a machine table, an electric track is arranged at the top end of the machine table, a heater is arranged at the top end of the electric track, a film clamping mechanism is arranged on the outer wall of the electric track, and the film clamping mechanism comprises a sliding frame. The sliding frame is installed on the outer wall of the electric track, a supporting frame is connected to the inner wall of the sliding frame in an inserted mode, an extrusion frame is connected to the top end of the sliding frame in an inserted mode, a fixing assembly is arranged at the top end of the sliding frame, a material taking assembly is arranged at the front end of the sliding frame, a locking assembly is arranged on the inner wall of the sliding frame, and the material taking assembly comprises a positioning block. According to the utility model, the split type design is adopted, and the supporting frame is arranged to be movable, so that when materials need to be taken, the extrusion block can be driven to extrude the positioning block by pushing the push plate, the supporting frame is driven to be separated from the sliding frame, and then the whole supporting frame can be taken down.

Description

Technical Field

[0001] The utility model relates to the field of blister machines, in particular to a blister machine with a preheating function. Background Art

[0002] A blister machine is a common material forming device that can draw out the air between the plastic film and the mold through wind to drive the plastic film to adhere to the surface of the mold, thus completing the material forming. Since the plastic film will have better physical properties after heating, a heater is usually installed on the top of the blister machine in the existing technology. This type of blister machine can preheat the plastic film through the heater, so that a better forming effect can be achieved during blister forming.

[0003] In the prior art, a film clamping device is usually used to fix the plastic film, and then the position of the plastic film can be moved by moving the film pressing device up and down. However, since the plastic film is fixed inside the film clamping device, and when the plastic film is heated, the inside of the film clamping device will also heat up, and the film clamping device is generally made of metal material, and the cooling speed is slower than that of the plastic film. Therefore, after the molding is completed, since the temperature of the film clamping device is high and the plastic film is located inside the film clamping device, it will be difficult for the operator to effectively separate the film clamping device and the plastic film. Usually, tools need to be used to penetrate into the inside of the film clamping device to perform the separation operation. The overall device is relatively inconvenient when taking out materials. Therefore, a blister forming machine with a preheating function is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a blister machine with a preheating function, which aims to improve the problem in the prior art that "the film clamping device will heat up synchronously with the plastic film when heated, which will be inconvenient when taking out the material."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a blister machine with a preheating function, comprising a machine table, an electric track is installed at the top of the machine table, a heater is installed at the top of the electric track, a film clamping mechanism is provided on the outer wall of the electric track, the film clamping mechanism comprises a sliding frame, the sliding frame is installed on the outer wall of the electric track, the inner wall of the sliding frame is plugged with a support frame, the top of the sliding frame is plugged with an extrusion frame, the top of the sliding frame is provided with a fixing component, the front end of the sliding frame is provided with a material taking component, the inner wall of the sliding frame is provided with a locking component, the material taking component comprises a positioning block, the rear end of the positioning block is fixedly connected to the front end of the support frame, the top of the sliding frame is provided with a positioning groove, the positioning block is plugged in the inner wall of the positioning groove, the inner wall of the positioning groove passes through and is slidably connected with the extrusion block, and the front end of the extrusion block is fixedly connected with a connecting rod.

[0006] As a further description of the above technical solution:

[0007] The front end of the extrusion block is fixedly connected to a reset spring, the front end of the reset spring is fixedly connected to the inner wall of the sliding frame, the connecting rod passes through and is slidably connected to the front end of the sliding frame, and the front end of the connecting rod is fixedly connected to a push plate.

[0008] As a further description of the above technical solution:

[0009] The fixing assembly includes a pull plate, which passes through and is slidably connected to the left end of the sliding frame. The top of the pull plate is fixedly connected to a fixing block. The left end of the extrusion frame is provided with a fixing groove, and the fixing groove and the fixing block are adapted.

[0010] As a further description of the above technical solution:

[0011] The right end of the fixing block is provided with a curved surface.

[0012] As a further description of the above technical solution:

[0013] The left end of the fixed block is fixedly connected with a fixed spring, and the left end of the fixed spring is fixedly connected to the inner wall of the top end of the sliding frame.

[0014] As a further description of the above technical solution:

[0015] The locking assembly includes a locking block, which is slidably connected to the inner wall of the sliding frame. The right end of the pull plate is provided with a locking groove, and the locking groove is adapted to the locking block.

[0016] As a further description of the above technical solution:

[0017] The top of the locking block is provided with a receiving groove, the bottom end of the inner wall of the receiving groove is fixedly connected with a locking spring, and the top end of the locking spring is fixedly connected to the inner wall of the sliding frame.

[0018] As a further description of the above technical solution:

[0019] The locking block is configured to be L-shaped, and the bottom end of the locking block passes through and is slidably connected to the bottom end of the sliding frame.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present invention, a split design is adopted to set the support frame to be movable. In this way, when it is necessary to take materials, it is only necessary to push the push plate to drive the extrusion block to squeeze the positioning block, thereby driving the support frame and the sliding frame to separate, and then the entire support frame can be removed. In this way, the operator does not need to use tools to go deep into the device to take materials when taking materials, and the entire device is more convenient for taking materials.

[0022] 2. In the present invention, by providing a locking assembly, when the locking block is inside the locking groove, the pull plate will be fixed and cannot move left or right, so the extrusion frame cannot be unlocked. Only when the bottom end of the sliding frame is in contact with the machine, the machine will squeeze the locking block to make it out of the locking groove, and the overall device is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the film clamping mechanism in the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the sliding frame in the present invention;

[0026] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the three-dimensional structure of part A;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the locking assembly in the present invention.

[0028] Legend:

[0029] 1. Machine; 2. Electric track; 3. Heater; 4. Film clamping mechanism; 41. Sliding frame; 42. Support frame; 43. Extrusion frame; 44. Fixing assembly; 441. Fixing groove; 442. Fixing block; 443. Pull plate; 444. Fixing spring; 45. Removing assembly; 451. Positioning block; 452. Positioning groove; 453. Push plate; 454. Extrusion block; 455. Connecting rod; 456. Return spring; 46. Locking assembly; 461. Locking block; 462. Storage groove; 463. Locking spring; 464. Locking groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 3, the utility model provides an embodiment: a blister machine with a preheating function, including a machine table 1 for supporting the overall device, the machine table 1 is a prior art, and an exhaust device is installed inside, which can realize blister molding by cooperating with a film clamping mechanism 4 and a plastic film. Due to the prior art and the fact that people in this field can implement it, this case will not be described in detail. An electric track 2 for supporting the movement of the film clamping mechanism 4 is installed on the top of the machine table 1, and a heater 3 for heating the plastic film is installed on the top of the electric track 2. A film clamping mechanism 4 for fixing the plastic film is provided on the outer wall of the electric track 2. The film clamping mechanism 4 includes a sliding frame 41 for supporting the movement of the entire film clamping mechanism 4. The sliding frame 41 is installed on the outer wall of the electric track 2. By starting the electric track 2, the sliding frame 41 can be driven to move up and down, and the inner wall of the sliding frame 41 is plugged with a support for supporting the plastic film The support frame 42 and the top of the sliding frame 41 are plugged with an extrusion frame 43 for squeezing the plastic film to prevent it from moving. The top of the sliding frame 41 is provided with a fixing component 44 for highly squeezing the frame 43. The front end of the sliding frame 41 is provided with a material-taking component 45 for facilitating the operator to move the support frame 42. The inner wall of the sliding frame 41 is provided with a locking component 46 for preventing the fixing component 44 from being unlocked at will. The material-taking component 45 includes a positioning block 451 for driving the support frame 42 to move. The rear end of the positioning block 451 is fixedly connected to the front end of the support frame 42. The top of the sliding frame 41 is provided with a positioning groove 452 for integrating the positioning block 451. The positioning block 451 is plugged into the inner wall of the positioning groove 452. When installing the support frame 42, the positioning block 451 needs to be aligned with the positioning groove 452 before the support frame 42 can be inserted into the interior of the sliding frame 41.

[0032] Reference Figure 2 - Figure 4 The inner wall of the positioning groove 452 passes through and is slidably connected with an extrusion block 454 for squeezing the positioning block 451. The front end of the extrusion block 454 is fixedly connected with a connecting rod 455 for driving the extrusion block 454 to move. The connecting rod 455 passes through and is slidably connected to the front end of the sliding frame 41. The extrusion block 454 can be driven to move by pushing the connecting rod 455. The front end of the extrusion block 454 is fixedly connected with a return spring 456 for driving the extrusion block 454 to move and reset. The front end of the return spring 456 is fixedly connected to the inner wall of the sliding frame 41. The return spring 456 will always pull the extrusion block 454 forward to prevent it from squeezing the positioning block 451. The front end of the connecting rod 455 is fixedly connected with a push plate 453 for driving the connecting rod 455 to move.

[0033] Reference Figure 1 - Figure 3The fixing assembly 44 includes a pull plate 443 for supporting the fixing block 442. The pull plate 443 passes through and is slidably connected to the left end of the sliding frame 41. By pulling the pull plate 443, the pull plate 443 can be driven to move left and right. The top of the pull plate 443 is fixedly connected to the fixing block 442 for fixing the extrusion frame 43. The left end of the extrusion frame 43 is provided with a fixing groove 441 for accommodating the fixing block 442. The fixing groove 441 and the fixing block 442 are adapted. When the fixing block 442 is inserted into the fixing groove 4 41, the extrusion frame 43 will be fixed and unable to move upward, the right end of the fixed block 442 is provided with an arc surface, when the arc surface is squeezed, the fixed block 442 will be forced to move to the left, the left end of the fixed block 442 is fixedly connected to a fixed spring 444 for pushing the fixed block 442, the left end of the fixed spring 444 is fixedly connected to the inner wall of the top of the sliding frame 41, the fixed spring 444 will always push the fixed block 442 to the right to ensure that it can be inserted into the interior of the fixing slot 441 in time.

[0034] Reference Figure 2 、 Figure 3 and Figure 5 The locking assembly 46 includes a locking block 461 for fixing the pull plate 443. The locking block 461 is slidably connected to the inner wall of the sliding frame 41. The locking block 461 can slide up and down on the inner wall of the sliding frame 41. The right end of the pull plate 443 is provided with a locking groove 464 for accommodating the locking block 461. The locking groove 464 and the locking block 461 are adapted. When the locking block 461 is inserted into the locking groove 464, the pull plate 443 will be fixed and cannot move left and right. The top of the locking block 461 is provided with a locking groove for accommodating the locking block 461. The receiving groove 462 of the tightening spring 463, the bottom end of the inner wall of the receiving groove 462 is fixedly connected with a locking spring 463 for driving the locking block 461 to move and reset, the top end of the locking spring 463 is fixedly connected to the inner wall of the sliding frame 41, and the locking spring 463 will always push the locking block 461 downward. The locking block 461 is set to be L-shaped, and the bottom end of the locking block 461 passes through and is slidably connected to the bottom end of the sliding frame 41. When the locking block 461 is squeezed upward, the locking block 461 will be forced to move upward.

[0035] Working principle: When it is necessary to carry out the blister operation, the support frame 42 can be inserted into the interior of the sliding frame 41 first, and then the plastic film can be placed on the top of the support frame 42, and then the extrusion frame 43 can be plugged into the top of the sliding frame 41. When the extrusion frame 43 moves downward, it will squeeze the arc surface of the fixed block 442 and force it to move to the left. When the extrusion frame 43 fits with the top of the sliding frame 41, the fixing spring 444 will push the fixed block 442 to insert it into the interior of the fixing groove 441. At this time, the extrusion frame 43 will be fixed and cannot move, and the plastic film will also be fixed. The inside of the film clamping mechanism 4 can then be started, and the electric track 2 can be started to drive the sliding frame 41 to move upward. When the sliding frame 41 moves upward to the bottom end of the heater 3, the plastic film can be heated by the heater 3. While heating the plastic film, the operator can place the mold on the top of the machine 1. When the heating is completed, the electric track 2 can be started to drive the film clamping mechanism 4 to move downward and drive the plastic film to wrap the mold. When the bottom end of the sliding frame 41 is in contact with the top end of the machine 1, the exhaust component can be started to remove the air between the plastic film and the mold to drive the plastic film to form.

[0036] When the plastic film is formed, the pulling plate 443 can be pulled to drive the fixing block 442 to move to the left and out of the fixing groove 441, and then the extrusion frame 43 can be taken out from the top of the material taking component 45 using a tool, and then the pushing plate 453 can be pushed to drive the connecting rod 455 to move backward. The backward movement of the connecting rod 455 will push the extrusion block 454 to move backward, and the backward movement of the extrusion block 454 will squeeze the positioning block 451 to drive the positioning block 451 to move upward. The upward movement of the positioning block 451 will drive the support frame 42 to move upward, and the upward movement of the support frame 42 can drive the already formed plastic film to move upward and out of the interior of the sliding frame 41. In this way, the operator does not need to manually go deep into the device to take out the material when taking the material, which is more convenient when taking the material.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A blister machine with a preheating function, comprising a machine platform (1), characterized in that: The top of the machine (1) is equipped with an electric track (2), the top of the electric track (2) is equipped with a heater (3), the outer wall of the electric track (2) is equipped with a film clamping mechanism (4), the film clamping mechanism (4) includes a sliding frame (41), the sliding frame (41) is equipped with the outer wall of the electric track (2), the inner wall of the sliding frame (41) is connected with a support frame (42), the top of the sliding frame (41) is connected with an extrusion frame (43), the top of the sliding frame (41) is equipped with a fixing component (44), the front end of the sliding frame (41) is equipped with a A material taking component (45) is provided, and a locking component (46) is provided on the inner wall of the sliding frame (41). The material taking component (45) includes a positioning block (451), the rear end of the positioning block (451) is fixedly connected to the front end of the support frame (42), and the top end of the sliding frame (41) is provided with a positioning groove (452). The positioning block (451) is inserted into the inner wall of the positioning groove (452), and the inner wall of the positioning groove (452) is penetrated and slidably connected with an extrusion block (454), and the front end of the extrusion block (454) is fixedly connected to a connecting rod (455).

2. The blister machine with preheating function according to claim 1, characterized in that: The front end of the extrusion block (454) is fixedly connected to a return spring (456), the front end of the return spring (456) is fixedly connected to the inner wall of the sliding frame (41), the connecting rod (455) passes through and is slidably connected to the front end of the sliding frame (41), and the front end of the connecting rod (455) is fixedly connected to a push plate (453).

3. The blister machine with preheating function according to claim 1, characterized in that: The fixing assembly (44) includes a pull plate (443), the pull plate (443) passes through and is slidably connected to the left end of the sliding frame (41), the top end of the pull plate (443) is fixedly connected to a fixing block (442), and the left end of the extrusion frame (43) is provided with a fixing groove (441), and the fixing groove (441) and the fixing block (442) are adapted to each other.

4. The blister machine with preheating function according to claim 3, characterized in that: The right end of the fixing block (442) is provided with a curved surface.

5. The blister machine with preheating function according to claim 3, characterized in that: The left end of the fixed block (442) is fixedly connected to a fixed spring (444), and the left end of the fixed spring (444) is fixedly connected to the inner wall of the top end of the sliding frame (41).

6. The blister machine with preheating function according to claim 3, characterized in that: The locking assembly (46) includes a locking block (461), which is slidably connected to the inner wall of the sliding frame (41). The right end of the pull plate (443) is provided with a locking groove (464), and the locking groove (464) and the locking block (461) are adapted to each other.

7. The blister machine with preheating function according to claim 6, characterized in that: The top of the locking block (461) is provided with a receiving groove (462), the bottom end of the inner wall of the receiving groove (462) is fixedly connected to a locking spring (463), and the top end of the locking spring (463) is fixedly connected to the inner wall of the sliding frame (41).

8. The blister machine with preheating function according to claim 6, characterized in that: The locking block (461) is configured to be L-shaped, and the bottom end of the locking block (461) passes through and is slidably connected to the bottom end of the sliding frame (41).

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