Feeding mechanism for thick sheet plastic vacuum forming machine

Abstract

The utility model relates to a feeding mechanism for a thick sheet plastic vacuum forming machine, which comprises a bottom plate and two supporting plates mounted at the top of the bottom plate, a conveying belt is mounted between the two supporting plates, two baffles are arranged at the top of the conveying belt, first intercepting plates are mounted at the tops of the two baffles, and a second intercepting plate is mounted at the top of the conveying belt. Two mounting plates are arranged at the tops of the two baffles, second intercepting plates are mounted at the tops of the two mounting plates, a feeding cavity of a square structure is formed between the two first intercepting plates and the two second intercepting plates, and a plurality of sets of pushing mechanisms are arranged on the conveying belt; the pushing mechanism comprises two moving columns which are mounted on the conveying belt and located below the mounting plate, in the using process, the production efficiency of the thick sheet plastic vacuum forming machine is improved, the machining quality of products is guaranteed, material waste is reduced, and meanwhile the thick sheet plastic vacuum forming machine can be suitable for being used for plastic plates of different sizes.

Description

Technical Field

[0001] This utility model belongs to the technical field of thick sheet vacuum forming machines, specifically relating to a feeding mechanism for thick sheet vacuum forming machines. Background Technology

[0002] Thick sheet vacuum forming machine is a key process equipment that uses plastic sheets as raw materials to produce vacuum-formed plastic parts through vacuum forming process. It uses thermoplastic plastic sheets as raw materials, heats them to a softening temperature in an oven, and then uses the vacuum negative pressure between the plastic sheet and the vacuum forming mold to make the thermoplastic plastic sheet adsorb onto the working surface of the vacuum forming mold and then cool and form.

[0003] Thick sheet vacuum forming machines mainly consist of a conveyor belt, a heating zone, a vacuum forming zone, a mold, and a cooling zone. Before operation, the plastic sheet is placed on the conveyor belt for heating. When it reaches the heating zone, the sheet is fully heated and softened. Then, the sheet is transferred to the vacuum forming zone, where it is stretched and shaped by the mold. Finally, it enters the cooling zone for cooling and solidification. When the conveyor belt feeds the plastic sheet, it needs to be manually placed onto the conveyor belt continuously. This manual placement not only increases the workload of the workers, but also results in inconsistent spacing between adjacent plastic sheets, making it impossible to feed at equal intervals and affecting production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed feeding mechanism for thick sheet vacuum forming machines in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A feeding mechanism for a thick sheet vacuum forming machine includes a base plate and two support plates mounted on top of the base plate. A conveyor belt is installed between the two support plates. Two baffles are provided on the top of the conveyor belt. A first intercepting plate is installed on the top of each of the two baffles. Two mounting plates are provided on the top of each of the two baffles. A second intercepting plate is installed on the top of each of the two mounting plates. A square feeding cavity is formed between the two first intercepting plates and the two second intercepting plates. Multiple sets of pushing mechanisms are provided on the conveyor belt. Each pushing mechanism includes two movable columns mounted on the conveyor belt and located below the mounting plates. A moving mechanism is installed on the top of each of the two support plates to drive the two mounting plates to move towards or away from each other.

[0007] As a further optimization of this utility model, a driving mechanism is installed on both of the support plates to move the two baffles toward each other or away from each other. The driving mechanism includes a fixed plate installed on the top of the support plate, a first electric telescopic rod installed on one side of the support plate, and a fixed block installed on the output end of the first electric telescopic rod. A movable plate is installed on the top of the fixed block, and two connecting rods that pass through the fixed plate and are fixed to one side of the baffle are installed on one side of the movable plate.

[0008] As a further optimization of this utility model, the moving mechanism includes two mounting blocks installed on the top of the support plate, a limiting rod installed between the two mounting blocks, and two limiting blocks sleeved outside the limiting rod. A second electric telescopic rod is installed on one side of each of the two mounting blocks, and the output ends of the two second electric telescopic rods are respectively fixedly connected to one side of the two limiting blocks.

[0009] As a further optimization of this utility model, the top of the baffle has two strip-shaped openings, and the two mounting plates are respectively located in the two strip-shaped openings, with the mounting plates being arranged perpendicularly to the baffle.

[0010] As a further optimization of this utility model, support legs are installed at the four corners of the bottom of the base plate.

[0011] As a further optimization of this utility model, a limiting plate located below the mounting plate is installed on the side of the two baffles that are close to each other, and both limiting plates are located inside the feeding cavity.

[0012] The beneficial effects of this utility model are as follows: The advantages exhibited by this utility model during use are as follows:

[0013] 1. Improve production efficiency: Equal spacing feeding ensures that plastic sheets are evenly distributed on the conveyor belt, avoiding accumulation and blockage, thereby reducing downtime and improving overall production efficiency.

[0014] 2. Ensure product quality: Equal spacing ensures that each plastic sheet is subjected to uniform pressure and temperature during the thermoforming process, avoiding deformation or quality problems caused by uneven spacing, thereby improving the yield and consistency of the product.

[0015] 3. Reduce material waste: By controlling the spacing of the plastic sheets, material waste caused by overlapping or misalignment of the sheets on the conveyor belt can be avoided, thus saving costs.

[0016] 5. Adaptable to different sizes of plastic sheets: The two first interceptor plates and two second interceptor plates can be flexibly adjusted according to the size of the plastic sheets to adapt to different sizes of plastic sheets, which improves the versatility and flexibility of the feeding mechanism. Attached Figure Description

[0017] Figure 1 This is a first three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a second three-dimensional structural schematic diagram of the present invention;

[0019] Figure 3 This is the utility model Figure 1 Enlarged structural diagram at point A;

[0020] Figure 4 This is the utility model Figure 1 A magnified structural diagram at point B in the middle.

[0021] In the diagram: 1. Base plate; 2. Support plate; 3. Conveyor belt; 4. Baffle; 5. Mounting plate; 6. First intercepting plate; 7. Second intercepting plate; 8. Fixing plate; 9. Connecting rod; 10. First electric telescopic rod; 11. Fixing block; 12. Mounting block; 13. Moving column; 14. Strip-shaped opening; 15. Limiting plate; 16. Limiting rod; 17. Limiting block; 18. Second electric telescopic rod; 19. Moving plate. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] like Figures 1-4As shown, a feeding mechanism for a thick sheet vacuum forming machine includes a base plate 1 and two support plates 2 mounted on top of the base plate 1. Support legs are installed at the four corners of the bottom of the base plate 1. A conveyor belt 3 is installed between the two support plates 2. Two baffles 4 are provided on the top of the conveyor belt 3. A certain gap exists between the bottom of the two baffles 4 and the top surface of the conveyor belt 3 to prevent excessive friction between the baffles 4 and the conveyor belt 3 during rotation, which would affect the conveying effect of the conveyor belt 3. A first intercepting plate 6 is installed on the top of each of the two baffles 4. Two mounting plates 5 are provided on the top of each of the two mounting plates 5. A second intercepting plate 7 is installed on the top of each of the two mounting plates 5. A square feeding cavity is formed between the two first intercepting plates 6 and the two second intercepting plates 7. All plates 7 are located at the feeding port of the conveyor belt 3. The conveyor belt 3 is equipped with multiple sets of pushing mechanisms. The pushing mechanism is located between two baffles 4. The pushing mechanism includes two movable columns 13 installed on the conveyor belt 3 and located below the mounting plate 5. On the side of the two baffles 4 that are close to each other, there are limiting plates 15 located below the mounting plate 5. The two limiting plates 15 are located inside the feeding cavity. The movable columns 13 are higher than the limiting plates 15 to push away the plastic plates located between the limiting plates 15 and the mounting plate 5. A gap is formed between the limiting plates 15 and the mounting plate 5 to facilitate the pushing mechanism. Moreover, during the pushing process, the mounting plate 5 will intercept the plastic plate above the bottom plastic plate to prevent the pushing mechanism from pushing out the plastic plate above the bottom plastic plate.

[0024] It should be noted that, in the case of this feeding mechanism for a thick sheet vacuum forming machine, multiple plastic sheets that need to be heated are stacked sequentially in the feeding cavity formed between two first intercepting plates 6 and two second intercepting plates 7. At this time, the bottom plastic sheet will be in contact with the top of the two limiting plates 15. When the conveyor belt 3 rotates, it will drive multiple sets of pushing mechanisms to rotate. When one set of pushing mechanisms moves to one side of the feeding cavity, it will push the bottom plastic sheet away under the action of the two moving columns 13. The bottom plastic sheet will pass through the gap formed between the limiting plate 15 and the mounting plate 5. According to the above operation, each set of pushing mechanisms will drive one plastic sheet to move, so as to carry out uninterrupted feeding. Moreover, during the feeding process, the spacing between each pair of adjacent plastic sheets is the same.

[0025] Example 2

[0026] like Figures 1-4As shown, the difference between this embodiment and Embodiment 1 is that: The tops of both support plates 2 are equipped with a moving mechanism that drives the two mounting plates 5 to move closer to or further apart from each other. The moving mechanism includes two mounting blocks 12 mounted on the top of the support plate 2, a limiting rod 16 mounted between the two mounting blocks 12, and two limiting blocks 17 sleeved outside the limiting rod 16. A second electric telescopic rod 18 is mounted on one side of each of the two mounting blocks 12, and the output ends of the two second electric telescopic rods 18 are respectively fixed to one side of each of the two limiting blocks 17. A driving mechanism is mounted on each of the two support plates 2. The mechanism allows two baffles 4 to move toward each other or away from each other. The driving mechanism includes a fixed plate 8 mounted on the top of the support plate 2, a first electric telescopic rod 10 mounted on one side of the support plate 2, and a fixed block 11 mounted on the output end of the first electric telescopic rod 10. A movable plate 19 is mounted on the top of the fixed block 11. Two connecting rods 9 are mounted on one side of the movable plate 19, passing through the fixed plate 8 and fixed to one side of the baffle 4. Two slots 14 are opened on the top of the baffle 4. Two mounting plates 5 are located in the two slots 14 respectively. The mounting plates 5 are perpendicular to the baffle 4.

[0027] The further improvement of this embodiment is that, during use, the distance between the two baffles 4 can be adjusted according to the width of the plastic sheet. At this time, the first electric telescopic rod 10 will drive the fixed block 111 to move. Under the drive of the fixed block 11, the moving plate 19 will move. Under the drive of the moving plate 19, the two connecting rods 9 will drive the baffles 4 to move, causing the two baffles 4 to move closer to or further away from each other. This, in turn, causes the two first intercepting plates 6 to move closer to or further away from each other, thus meeting the needs of using plastic sheets of different widths. Simultaneously, the distance between the two mounting plates 5 can be adjusted according to the length of the plastic sheet. At this time, the two second electric telescopic rods 18 will drive the two limiting blocks 17 to move. Under the drive of the two limiting blocks 17, the two mounting plates 5 will move closer to or further away from each other, thus causing the two second intercepting plates 7 to move closer to or further away from each other. This, in turn, meets the needs of using plastic sheets of different lengths, thus adapting to the use of plastic sheets of different sizes.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A feeding mechanism for a thick sheet vacuum forming machine, comprising a base plate (1) and two support plates (2) mounted on top of the base plate (1), characterized in that, A conveyor belt (3) is installed between the two support plates (2). The top of the conveyor belt (3) is provided with two baffles (4). The top of each of the two baffles (4) is provided with a first intercepting plate (6). The top of each of the two baffles (4) is provided with two mounting plates (5). The top of each of the two mounting plates (5) is provided with a second intercepting plate (7). A square feeding cavity is formed between the two first intercepting plates (6) and the two second intercepting plates (7). Multiple sets of pushing mechanisms are provided on the conveyor belt (3). The pushing mechanism includes two moving columns (13) installed on the conveyor belt (3) and located below the mounting plates (5). The top of each of the two support plates (2) is provided with a moving mechanism that drives the two mounting plates (5) to move closer to or further away from each other.

2. The feeding mechanism for a thick sheet vacuum forming machine according to claim 1, characterized in that: Both of the support plates (2) are equipped with a drive mechanism to move the two baffles (4) toward each other or away from each other. The drive mechanism includes a fixed plate (8) installed on the top of the support plate (2), a first electric telescopic rod (10) installed on one side of the support plate (2), and a fixed block (11) installed at the output end of the first electric telescopic rod (10). A movable plate (19) is installed on the top of the fixed block (11). Two connecting rods (9) are installed on one side of the movable plate (19) that pass through the fixed plate (8) and are fixed to one side of the baffle (4).

3. The feeding mechanism for a thick sheet vacuum forming machine according to claim 1, characterized in that: The moving mechanism includes two mounting blocks (12) mounted on the top of the support plate (2), a limiting rod (16) mounted between the two mounting blocks (12), and two limiting blocks (17) sleeved on the outside of the limiting rod (16). A second electric telescopic rod (18) is mounted on one side of each of the two mounting blocks (12), and the output ends of the two second electric telescopic rods (18) are respectively fixed to one side of the two limiting blocks (17).

4. The feeding mechanism for a thick sheet vacuum forming machine according to claim 1, characterized in that: The top of the baffle (4) has two slots (14), and the two mounting plates (5) are located in the two slots (14) respectively. The mounting plates (5) are perpendicular to the baffle (4).

5. The feeding mechanism for a thick sheet vacuum forming machine according to claim 1, characterized in that: Support legs are installed at the four corners of the bottom of the base plate (1).

6. The feeding mechanism for a thick sheet vacuum forming machine according to claim 1, characterized in that: Both of the two baffles (4) are fitted with a limiting plate (15) located below the mounting plate (5) on the side that is close to each other, and both limiting plates (15) are located inside the feeding cavity.

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