A mold for processing biodegradable plastic takeout boxes

Abstract

This utility model discloses a mold for processing biodegradable plastic takeaway boxes, including a processing table. A rotating seat is rotatably mounted on the processing table, and mold boxes are symmetrically arranged on the rotating seat. A support plate is provided on the processing table, and a rotating column is rotatably mounted under the bottom surface of the support plate and connected to the rotating seat. A drive cylinder is provided on the support plate, and a linkage plate is provided on the drive rod of the drive cylinder. The drive cylinder drives the linkage plate to move, causing the cap to move synchronously. The linkage plate first moves a distance independently, causing the magnetic block to engage and lock with the mating block. Then, it drives the baffle to move. Through the gear transmission and crank structure of the synchronization mechanism, the rotating seat rotates to change the position of the mold box. When the baffle stops moving due to the obstruction of the limiting block, the magnetic block disengages from the mating block, and the linkage plate continues to move, so that the cap fits and seals with the new mold box. This avoids interference caused by the synchronous movement of the cap and the mold, achieves static sealing, and has a better sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of mold equipment technology, specifically to a mold for processing biodegradable plastic takeaway lunch boxes. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, molds are tools used to shape objects.

[0003] The existing patent publication number CN221584263U discloses a mold for processing biodegradable plastic takeaway boxes, including a rotating mechanism, a transmission mechanism, and a lifting mechanism. The transmission mechanism is located inside the rotating mechanism. The molds are arranged in six symmetrical positions around the center of a fixed platen, so each mold is 60° apart. Therefore, when the stepper motor runs once, it transports the next mold to the area directly below the sealing cover 304. The number of teeth of the first bevel gear is six times that of the second bevel gear. So when the first bevel gear rotates 60° with the stepper motor, the second bevel gear rotates one revolution. One revolution of the second bevel gear causes the turntable to rotate one revolution. After the turntable rotates one revolution, the sealing cover rises and then falls, so that the sealing cover detaches from the cast mold and fits into the next blank mold. The formed mold can slowly cool inside the mold, and the device can continue casting, greatly improving work efficiency.

[0004] In the existing solutions mentioned above, because the cap and the mold adopt a synchronous linkage design, when the cap rises or falls, the mold starts to move synchronously. This results in the connection between the cap and the mold only making contact and fitting for a brief moment during their synchronous movement. This dynamic fitting method makes it difficult to ensure a stable and reliable seal between the cap and the mold, which can easily lead to gaps, resulting in problems such as plastic melt leakage and insufficient pressure, thus affecting the molding quality of the lunch box. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or existing molds for processing biodegradable plastic takeaway containers, this utility model is proposed.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A mold for processing biodegradable plastic takeaway containers includes a processing table, a rotating seat rotatably mounted on the processing table, mold boxes symmetrically arranged on the rotating seat, a support plate on the processing table, a rotating column rotatably mounted under the bottom surface of the support plate and connected to the rotating seat, a drive cylinder on the support plate, a linkage plate on the drive rod of the drive cylinder, a cover on the bottom surface of the linkage plate, and a synchronization mechanism under the bottom surface of the support plate.

[0009] As a preferred embodiment of the mold for processing biodegradable plastic takeaway containers according to this utility model, the synchronization mechanism includes a fixed plate disposed under the bottom surface of a support plate. A first gear is rotatably mounted on one side of the fixed plate, and a second gear is disposed on the outer wall of the rotating column, with the second gear meshing with the first gear. A turntable is rotatably mounted on the other side of the outer wall of the fixed plate, and the turntable is connected to the first gear. A protrusion is disposed on the outer wall of the turntable. First guide rods are symmetrically inserted and slidably assembled on the outer wall of the fixed plate, and the bottom surface of the first guide rods is provided with the same baffle. A connecting seat is disposed on the baffle, and a drive plate is rotatably mounted between the connecting seat and the protrusion.

[0010] As a preferred embodiment of the mold for processing biodegradable plastic packaging lunch boxes according to the present invention, a connecting plate is provided under the bottom surface of the support plate, and a plurality of second guide rods are symmetrically inserted and slidably assembled in the connecting plate, and the plurality of second guide rods are all connected to the linkage plate, and the top surface of the plurality of second guide rods is provided with the same limiting plate.

[0011] As a preferred embodiment of the mold for processing biodegradable plastic takeaway lunch boxes according to this utility model, the first gear and the second gear are respectively configured as a small gear and a large gear.

[0012] As a preferred embodiment of the mold for processing biodegradable plastic packaging lunch boxes described in this utility model, magnetic blocks are symmetrically arranged on one side edge of the linkage plate, and a mating block is arranged under the bottom surface of the baffle, and the mating block and the magnetic blocks are magnetically mated.

[0013] As a preferred embodiment of the mold for processing biodegradable plastic takeaway lunch boxes according to this utility model, a downwardly extending sealing edge is provided on the bottom surface of the cap.

[0014] As a preferred embodiment of the mold for processing biodegradable plastic takeaway boxes according to this utility model, a third guide rod is symmetrically arranged on the outer wall of the baffle, and the third guide rod is inserted into the fixing plate and slidably assembled, and friction-enhancing blocks are evenly arranged on the outer wall of the third guide rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The drive cylinder drives the linkage plate to move, causing the cover to move synchronously. The linkage plate first moves a distance independently, causing the magnetic block to engage and lock with the mating block. Then, it drives the baffle to move. Through the gear transmission and crank structure of the synchronization mechanism, the rotating seat rotates to change the position of the mold box. When the baffle stops moving due to the obstruction of the limiting block, the magnetic block disengages from the mating block, and the linkage plate continues to move, so that the cover fits and seals with the new mold box. This avoids interference caused by the synchronous movement of the cover and the mold, achieving static sealing and a better sealing effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a first-view structural diagram of the overall structure of a mold for processing biodegradable plastic takeaway boxes according to this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of a mold for processing biodegradable plastic takeaway boxes according to this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of the middle section structure;

[0021] Figure 4 This is a schematic diagram of the first and second gear mating structure of a mold for processing biodegradable plastic takeaway lunch boxes according to this utility model.

[0022] In the diagram: 1. Processing table; 2. Support plate; 3. Drive cylinder; 4. Rotating seat; 5. Mold box; 6. Rotating column; 7. Linkage plate; 8. Cover; 9. Mating block; 10. Connecting seat; 11. Drive plate; 12. Turntable; 13. Protrusion; 14. Fixing plate; 15. First guide rod; 16. First gear; 17. Second gear; 18. Second guide rod; 19. Limiting plate; 20. Third guide rod; 21. Friction-enhancing block; 22. Connecting plate; 23. Baffle; 24. Magnetic block. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Example 1

[0026] See Figures 1-4 This utility model provides a technical solution:

[0027] A mold for processing biodegradable plastic takeaway boxes has an ingenious structural design that enables a stable seal between the lid and the mold, ensuring the quality of the takeaway box and improving production efficiency.

[0028] The mold includes a processing table 1, which is made of cast iron and has a surface that is precision machined to ensure flatness. A rotating seat 4 is mounted on the processing table 1 via a bearing. The rotating seat 4 is a circular platform on which mold boxes 5 are symmetrically arranged. The shape of the mold boxes 5 matches that of biodegradable plastic takeaway boxes and is used for the molding of the takeaway boxes.

[0029] A support plate 2 is welded onto the processing table 1. The support plate 2 is a vertically arranged L-shaped steel plate. A rotating column 6 is rotatably mounted on its bottom surface via a bearing. The bottom end of the rotating column 6 is fixedly connected to the center of the rotating seat 4, which can drive the rotating seat 4 to rotate. A drive cylinder 3 is fixed to the support plate 2 by bolts. The drive cylinder 3 is a hydraulic cylinder with large driving force and smooth operation. A linkage plate 7 is fixed to the bottom end of its drive rod by bolts. The linkage plate 7 is a horizontally arranged steel plate. A cover 8 is fixed to its bottom surface by bolts. The cover 8 has a downwardly extending sealing edge on its bottom surface, which can be tightly fitted with the mold box 5 to achieve a seal.

[0030] A synchronization mechanism is provided under the bottom surface of the support plate 2. The synchronization mechanism includes a fixed plate 14 welded to the bottom surface of the support plate 2. The fixed plate 14 is a vertical steel plate. A first gear 16 is rotatably mounted on one side of the fixed plate 14 via a bearing. A second gear 17 is keyed to the outer wall of the rotating column 6. The second gear 17 meshes with the first gear 16. The first gear 16 is a small gear and the second gear 17 is a large gear. The number of rotations can be changed through gear transmission.

[0031] A turntable 12 is rotatably mounted on the other side of the outer wall of the fixed plate 14 via a bearing. The turntable 12 and the first gear 16 are connected by a transmission shaft to achieve synchronous rotation. A protrusion 13 is welded on the outer wall of the turntable 12. A first guide rod 15 is symmetrically inserted and slidably assembled on the outer wall of the fixed plate 14. The first guide rod 15 is a smooth round rod. The bottom surface is welded with the same baffle 23. The baffle 23 is a horizontal steel plate with a connecting seat 10 welded on it. A drive plate 11 is rotatably mounted between the connecting seat 10 and the protrusion 13 via a pin.

[0032] A connecting plate 22 is welded to the bottom surface of the support plate 2. Several second guide rods 18 are symmetrically inserted and slidably assembled in the connecting plate 22. The bottom end of the second guide rod 18 is welded and fixed to the linkage plate 7, and the top end is welded with the same limiting plate 19. The limiting plate 19 can prevent the second guide rod 18 from coming out of the connecting plate 22. The second guide rod 18 plays a guiding role in the movement of the linkage plate 7.

[0033] A magnetic block 24 is symmetrically embedded on one side edge of the linkage plate 7. The magnetic block 24 is a strong magnet. A mating block 9 is welded to the bottom surface of the baffle 23. The mating block 9 is made of iron and can be magnetically connected and locked with the magnetic block 24. A third guide rod 20 is also symmetrically welded on the outer wall of the baffle 23. The third guide rod 20 is inserted into the fixing plate 14 and slidably assembled. Friction-enhancing blocks 21 are evenly arranged on its outer wall. The friction-enhancing blocks 21 are made of rubber and can increase the friction between the third guide rod 20 and the fixing plate 14, thereby improving the self-locking ability.

[0034] In use, the drive cylinder 3 is activated, and the drive rod of the drive cylinder 3 extends, causing the linkage plate 7 and the cover 8 to move upward. After the linkage plate 7 moves upward a certain distance, the magnetic block 24 on it contacts the mating block 9 on the bottom surface of the baffle 23, and the two are magnetically attracted to maintain a locked state. At this time, if the linkage plate 7 continues to move upward, it will cause the baffle 23 to move upward synchronously. The baffle 23 moves downward, causing the connecting seat 10 to move upward. The connecting seat 10 pulls the protrusion 13 through the drive plate 11, causing the turntable 12 to rotate. The turntable 12 drives the first gear 16 to rotate. The first gear 16 meshes with the second gear 17, driving the rotating column 6 and the rotating seat 4 to rotate. The rotation of the turntable 12 is one revolution, hence the above transmission relationship. It also achieves a reverse transmission, causing the baffle 23 to move down. When the baffle 23 moves down to the point where the limiting block on the first guide rod 15 contacts the fixed plate 14, the baffle 23 stops moving down. At this time, the mold box 5 rotates to the position directly below the cover 8, and the magnetic block 24 and the mating block 9 disengage from the locked state. The linkage plate 7 continues to move down under the action of the drive cylinder 3, so that the sealing edge of the cover 8 fits into the new mold box 5, achieving a stable seal. This cycle is repeated to achieve continuous production. Throughout the process, the third guide rod 20 moves with the baffle 23, and the friction-enhancing block 21 on it increases the friction between it and the fixed plate 14. When the baffle 23 stops moving, it can enhance the self-locking ability and ensure positional stability.

[0035] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mold for processing biodegradable plastic takeaway containers, characterized in that, The system includes a processing table (1), on which a rotating seat (4) is rotatably mounted, and mold boxes (5) are symmetrically arranged on the rotating seat (4). A support plate (2) is provided on the processing table (1), and a rotating column (6) is rotatably mounted under the bottom surface of the support plate (2), and the rotating column (6) is connected to the rotating seat (4). A drive cylinder (3) is provided on the support plate (2), and a linkage plate (7) is provided on the drive rod of the drive cylinder (3). A cover (8) is provided on the bottom surface of the linkage plate (7), and a synchronization mechanism is provided under the bottom surface of the support plate (2).

2. The mold for processing degradable plastic packed meal box according to claim 1, characterized in that, The synchronization mechanism includes a fixed plate (14) disposed under the bottom surface of the support plate (2). A first gear (16) is rotatably mounted on one side of the fixed plate (14). A second gear (17) is disposed on the outer wall of the rotating column (6) and meshes with the first gear (16). A turntable (12) is rotatably mounted on the other side of the outer wall of the fixed plate (14) and is connected to the first gear (16). A protrusion (13) is disposed on the outer wall of the turntable (12). A first guide rod (15) is symmetrically inserted and slidably assembled on the outer wall of the fixed plate (14). The bottom surface of the first guide rod (15) is provided with the same baffle (23). A connecting seat (10) is disposed on the baffle (23). A drive plate (11) is rotatably mounted between the connecting seat (10) and the protrusion (13).

3. The mold for processing degradable plastic packed meal box according to claim 2, characterized in that, A connecting plate (22) is provided under the bottom surface of the support plate (2). Several second guide rods (18) are symmetrically inserted and slidably assembled in the connecting plate (22). The several second guide rods (18) are all connected to the linkage plate (7). The top surface of the several second guide rods (18) is provided with the same limiting plate (19).

4. The mold for processing biodegradable plastic takeaway containers according to claim 2, characterized in that, The first gear (16) and the second gear (17) are respectively configured as a small gear and a large gear.

5. The mold for processing degradable plastic packed meal box according to claim 2, characterized in that, The linkage plate (7) is symmetrically provided with magnetic blocks (24) on one side edge, and the bottom surface of the baffle (23) is provided with a mating block (9), and the mating block (9) and the magnetic blocks (24) are magnetically mated.

6. The mold for processing degradable plastic packed meal box according to claim 1, characterized in that, The bottom surface of the cover (8) is provided with a downwardly extending sealing edge.

7. The mold for processing degradable plastic packed meal box according to claim 2, characterized in that, The outer wall of the baffle (23) is also symmetrically provided with a third guide rod (20), and the third guide rod (20) is inserted into the fixing plate (14) and slidably assembled. The outer wall of the third guide rod (20) is uniformly provided with friction-enhancing blocks (21).

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