Dynamic roller mechanism for a blister machine

Abstract

The utility model discloses a kind of dynamic roller mechanisms for blister machine, it is related to double-layer blister production equipment technical field, including turntable frame and material placing port on turntable frame, the material placing port below is horizontally arranged with roller, the both ends of the roller are slidably connected with turntable frame by slide rail assembly, driving assembly is installed on the turntable frame, the roller can be driven by driving assembly and reciprocating moves on material placing port, the utility model is arranged with roller on material placing port horizontally, and by setting slide rail assembly and driving assembly, under the driving of driving assembly, so that the roller can reciprocating move along slide rail assembly in material placing port, realize the softening after piece material in material placing port is lifted, so as to alleviate the degree of piece material drop, avoid piece material to crack situation, it is favorable to avoid piece material quality not good situation of blister molding on mould.

Description

Technical Field

[0001] This utility model relates to the technical field of double-layer thermoforming production equipment, specifically to a dynamic roller mechanism for a thermoforming machine. Background Technology

[0002] A rotary vacuum forming machine is a device used to process thermoplastic sheets into various shapes and attach them to the surface of products. The horizontal turntable of the rotary vacuum forming machine has a pre-set feeding port with an upward opening. The sheet material is covered and fixed on the feeding port, and then the sheet material passes through the heating zone and the vacuum forming mold area in sequence with the turntable.

[0003] In practical use, after the sheet material softens due to heating in the heating zone, it collapses and deforms under its own gravity before being transferred to the corresponding mold position. This can easily lead to sheet material tearing, resulting in poor product quality after the sheet material is vacuum-formed on the mold. To solve the above problems, we propose a new solution. Utility Model Content

[0004] The purpose of this invention is to provide a dynamic roller mechanism for a vacuum forming machine to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dynamic roller mechanism for a thermoforming machine includes a turntable frame and a material inlet on the turntable frame. A roller is horizontally arranged below the material inlet. Both ends of the roller are slidably connected to the turntable frame via a slide rail assembly. A drive assembly is installed on the turntable frame, and the roller can reciprocate on the material inlet under the drive of the drive assembly.

[0007] Preferably, the slide rail assembly includes a hanging rail rod fixed to the turntable frame, and the hanging rail rod is slidably adapted to a sliding element.

[0008] Preferably, the number of sliding parts on the suspension rail is multiple, and the side of each sliding part is rotatably connected to the end of the corresponding idler roller.

[0009] Preferably, the drive assembly includes a drive roller located on one side of the idler roller and a driven roller located on the other side of the idler roller. Both the drive roller and the driven roller are rotatably connected to the turntable frame. Both ends of the idler roller are provided with a transmission chain that drives the drive roller and the driven roller. Multiple locking parts corresponding to the sliding parts are fixed on the transmission chain. The end of the drive roller is driven by a drive motor fixed on the turntable frame.

[0010] Preferably, the roller body surface of the idler roller is coated with an anti-stick coating.

[0011] Preferably, both the driving roller and the driven roller are fixed with toothed discs adapted to the transmission chain.

[0012] Preferably, there are multiple idlers, and the two ends of each idler are rotatably connected to a corresponding sliding member.

[0013] Preferably, the drive motor is a right-angle motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, by horizontally arranging rollers on the feeding port and by setting up a slide rail assembly and a drive assembly, the rollers can reciprocate along the slide rail assembly within the feeding port under the drive of the drive assembly, thereby lifting the softened sheet material in the feeding port, preventing sagging, thus alleviating the degree of sheet material descent, avoiding sheet material tearing, reducing the scrap rate of the strip, and also helping to avoid the situation of poor quality of sheet material vacuum forming on the mold.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0017] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram showing the position of the rollers on the turntable of a dynamic roller mechanism for a vacuum forming machine according to this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of a dynamic roller mechanism for a vacuum forming machine according to the present invention;

[0021] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Turntable frame; 2. Idler roller; 3. Slide rail assembly; 3.1. Hanging rail rod; 3.2. Sliding component; 3.2.1. Slider; 3.2.2. Connecting frame; 3.3. Profile beam rod; 4. Drive assembly; 4.1. Drive roller; 4.2. Driven roller; 4.3. Transmission chain; 4.4. Locking component; 4.5. Drive motor; 4.6. Gear disc; 5. Material inlet; 6. Connecting plate; 7. Long slot; 8. Side baffle; 9. U-shaped box groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0025] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0026] A rotary vacuum forming machine is a device used to process thermoplastic sheets into various shapes that can be attached to the surface of a product. The rotary table holds the sheet horizontally in place using clamps, then rotates the sheet to the corresponding heating area, softening it. The softened sheet is then moved to the mold area, where it is vacuum-formed. However, after being heated and softened, the sheet collapses and deforms under its own weight, easily causing it to tear. This results in poor product quality after the sheet is vacuum-formed on the mold. To address these issues, we propose a new solution.

[0027] Please see Figure 1 - Figure 3This utility model provides a dynamic roller mechanism for a vacuum forming machine, including a turntable frame 1 and a material inlet 5 on the turntable frame 1. A roller 2 is horizontally arranged below the material inlet 5. Both ends of the roller 2 are slidably connected to the turntable frame 1 through a slide rail assembly 3. A drive assembly 4 is installed on the turntable frame 1. The roller 2 can be driven by the drive assembly 4 to reciprocate on the material inlet 5.

[0028] Specifically, the turntable frame 1 is a horizontally arranged disc-shaped structure, the edge contour of the material inlet 5 is a rectangular structure, the roller body surface of the idler roller 2 is coated with an anti-stick coating, such as Teflon anti-stick coating, polytetrafluoroethylene, PTFE, etc., to prevent the idler roller 2 from sticking to the sheet material, the axis of the idler roller 2 is perpendicular to the length edge of the material inlet 5, and the idler roller 2 is located directly below the material inlet 5;

[0029] The slide rail assembly 3 includes a hanging rail rod 3.1 fixed to the turntable frame 1. The length direction line of the hanging rail rod 3.1 is parallel to the horizontal plane and parallel to the length direction line of the material inlet 5. Preferably, a profile beam rod 3.3 is fixed parallel to the top of the hanging rail rod 3.1. The top surface of the profile beam rod 3.3 is fixed to the turntable frame 1. The hanging rail rod 3.1 is slidably adapted to a sliding member 3.2. There are multiple sliding members 3.2 on the hanging rail rod 3.1. The side of each sliding member 3.2 is rotatably connected to the end of the corresponding roller 2. There are multiple rollers 2. The two ends of each roller 2 are rotatably connected to the corresponding sliding member 3.2.

[0030] Furthermore, the sliding member 3.2 includes a slider 3.21 that is adapted to be hung and slidably fitted with the hanging rail 3.1. A connecting frame 3.22 is fixed at the bottom of the slider 3.21. Preferably, the connecting frame 3.22 is a shell structure, and the shell structure is rectangular in shape. The roller 2 is rotatably installed on the side wall of the connecting frame 3.22. When the roller 2 is in contact with the bottom of the sheet, the roller 2 can rotate accordingly as it moves with the connecting frame 3.22.

[0031] The drive assembly 4 includes a drive roller 4.1 located on one side of the idler roller 2 and a driven roller 4.2 located on the other side of the idler roller 2. Both the drive roller 4.1 and the driven roller 4.2 are rotatably connected to the turntable frame 1. Both ends of the idler roller 2 are provided with a transmission chain 4.3 that drives the drive roller 4.1 and the driven roller 4.2. Multiple locking parts 4.4 corresponding to the sliding parts 3.2 are fixed on the transmission chain 4.3. Specifically, the transmission chain 4.3 is connected and fixed to the connecting frame 3.22 through the locking parts 4.4. The transmission chain 4.3 is a roller chain with ear plates. The ear plates of the transmission chain 4.3 are connected and fixed to the connecting frame 3.22 by screws. The screws or bolts constitute the locking parts 4.4 between the transmission chain 4.3 and the connecting frame 3.22. The end of the drive roller 4.1 is connected to a drive motor 4.5 fixed on the turntable frame. The drive motor 4.5 is a right-angle motor. The drive motor 4.5 is preferably a servo-controlled right-angle motor.

[0032] It should be noted that the transmission chain 4.3 has two parallel chain segments in the vertical plane, namely the upper chain segment and the lower chain segment, and the two parallel chain segments move in opposite directions. Each chain segment is provided with an ear plate that is adapted to be installed with the locking member 4.4. Since there are multiple idler rollers 2, each idler roller 2 is distributed in parallel on the same horizontal plane. All idler rollers 2 are divided into two groups. For example, if there are 4 idler rollers 2, then there are two idler rollers 2 in each group. For example, if there are two idler rollers 2, then there is 1 idler roller 2 in each group. The idler roller 2 fixed to the upper chain segment by the connecting frame 3.22 is the first support part, and the idler roller 2 fixed to the lower chain segment by the connecting frame 3.22 is the second support part. The first support part and the second support part can move towards each other when the drive motor 4.5 is driven in the forward direction, and the first support part and the second support part can move away from each other when the drive motor 4.5 is driven in the reverse direction.

[0033] In actual use, when the drive motor rotates forward, the driving roller 4.1 drives the driven roller 4.2 to rotate forward via the transmission chain 4.3. This causes the upper segment of the transmission chain 4.3 to move forward, while the lower segment moves in the opposite direction. Consequently, the first support part and the second support part move towards each other until they approach each other, stopping the forward rotation of the drive motor 4.5. Then, the drive motor reverses direction. Similarly, the driving roller 4.1 drives the driven roller 4.2 to rotate in the opposite direction via the transmission chain 4.3. This causes the upper segment of the transmission chain 4.3 to move forward, while the lower segment moves in the opposite direction. When the chain segment moves in the reverse direction and the lower chain segment of the transmission chain 4.3 moves in the forward direction, the first support part and the second support part move in opposite directions until the first support part and the second support part are close to the end position of the corresponding material inlet 5. Then the drive motor 4.5 stops and reverses, and then the drive motor rotates in the forward direction. This process is repeated to dynamically support the sheet material on the material inlet 5. In addition, when the sheet material is in the mold suction position, the first support part and the second support part are close to the end position of the corresponding material inlet 5, and the drive motor 4.5 is in a stopped state.

[0034] In another embodiment of this utility model, the turntable frame 1 includes a connecting plate 6 vertically fixed at the bottom. The length direction of the connecting plate 6 is parallel to the length direction of the material inlet 5. The side of the profile beam 3.3 is fixed to the connecting plate 6. The plate surface of the connecting plate 6 is perpendicular to the horizontal plane. A long slot 7 for the idler roller 2 to pass through is opened on the plate surface of the connecting plate 6. The driving roller 4.1 and the driven roller 4.2 are rotatably connected to the connecting plate 6 on the turntable frame 1. The driving roller 4.1 and the driven roller 4.2 are both fixed with a toothed disc 4.6 adapted to the transmission chain 4.3, thus forming a sprocket assembly together with the transmission chain 4.3. In actual use, during the rotation of the driving roller 4.1 and the driven roller 4.2, the toothed disc 4.6 coaxially fixed on the driving roller 4.1 drives the transmission chain 4.3 to rotate. The transmission chain 4.3 then drives the driven roller 4.2 to rotate axially through the toothed disc 4.6 on the driven roller 4.2.

[0035] In another embodiment of this utility model, a side baffle 8 is fixed to the side of the profile beam 3.3. The surface of the side baffle 8 is parallel to the surface of the connecting plate 6. A U-shaped groove 9 is fixed to the side of the side baffle 8 facing the transmission chain 4.3. The opening of the U-shaped groove 9 faces the transmission chain 4.3. The U-shaped groove 9 can slide and adapt to the chain of the transmission chain 4.3, thereby reducing the vertical jump of the chain during the movement of the transmission chain 4.3. It also provides a locking mechanism for the locking member 4.4 when it passes through the U-shaped groove 9. The U-shaped groove 9 also provides a certain supporting force for the connecting frame 3.22. The length direction of the U-shaped groove 9 is parallel to the horizontal plane. There are two U-shaped grooves 9, which are parallel to each other. The two U-shaped grooves 9 slide and adapt to the upper chain segment and the lower chain segment of the corresponding transmission chain 4.3, respectively. In actual use, the U-shaped groove 9 can cooperate with the transmission chain 4.3, which is conducive to maintaining the stable operation of the transmission chain 4.3.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dynamic roller mechanism for a thermoforming machine, comprising a turntable frame (1) and a material inlet (5) below the turntable frame (1), characterized in that: A roller (2) is horizontally arranged on the feeding port (5). Both ends of the roller (2) are slidably connected to the turntable frame (1) through the slide rail assembly (3). A drive assembly (4) is installed on the turntable frame (1). The roller (2) can be driven by the drive assembly (4) to reciprocate on the feeding port (5).

2. The dynamic roller mechanism for a vacuum forming machine according to claim 1, characterized in that, The slide rail assembly (3) includes a hanging rail rod (3.1) fixed to the turntable frame (1), and the hanging rail rod (3.1) is slidably adapted to a sliding member (3.2).

3. The dynamic roller mechanism for a vacuum forming machine according to claim 2, characterized in that, The number of sliding parts (3.2) on the suspension rail (3.1) is multiple, and the side of each sliding part (3.2) is rotatably connected to the end of the corresponding roller (2).

4. The dynamic roller mechanism for a vacuum forming machine according to claim 1, characterized in that, The drive assembly (4) includes an active roller (4.1) located on one side of the idler roller (2) and a driven roller (4.2) located on the other side of the idler roller (2). Both the active roller (4.1) and the driven roller (4.2) are rotatably connected to the turntable frame (1). Both ends of the idler roller (2) are provided with a transmission chain (4.3) that drives the active roller (4.1) and the driven roller (4.2). Multiple locking parts (4.4) that are correspondingly connected to the sliding parts (3.2) are fixed on the transmission chain (4.3). The end of the active roller (4.1) is connected to a drive motor (4.5) fixed on the turntable frame.

5. The dynamic roller mechanism for a vacuum forming machine according to claim 1, characterized in that, The roller body surface of the idler roller (2) is coated with an anti-stick coating.

6. The dynamic roller mechanism for a vacuum forming machine according to claim 4, characterized in that, Both the driving roller (4.1) and the driven roller (4.2) are fixed with toothed discs (4.6) that are compatible with the transmission chain (4.3).

7. The dynamic roller mechanism for a vacuum forming machine according to claim 3, characterized in that, There are multiple idler rollers (2), and the two ends of each idler roller (2) are rotatably connected to the corresponding sliding member (3.2).

8. The dynamic roller mechanism for a vacuum forming machine according to claim 4, characterized in that, The drive motor (4.5) is a right-angle motor.

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