A kind of isolated fresh-keeping PE film winding equipment for frozen products

Abstract

The utility model relates to frozen product packaging technical field especially relates to a kind of isolation fresh-keeping PE film winding equipment for frozen product, including mounting plate, first carousel, second carousel and plug rod, the first mounting bracket and the second mounting bracket of opposite symmetry are equipped in mounting plate top, the first carousel is equipped in the first mounting bracket one side, the second carousel is equipped in the second mounting bracket one side, the first carousel and the second carousel are equipped with multiple plug rod that is circumferential array, the plug rod end portion appearance is conus, two symmetrical recesses are equipped in the plug rod, the recess one side groove face is fixedly connected with spring one end.The device utilizes the difference of buckle differentiation slope angle and directional design and adjustable first carousel, realizes the efficient and unblocked effect of winding drum orderly separation and unloading process, solves the problem that current device lacks the automatic separation design based on mechanical characteristics and the efficient unloading mechanism of multi-motor and separation action cooperation.

Description

Technical Field

[0001] This utility model relates to the field of frozen food packaging technology, and in particular to a PE film winding device for isolating and preserving frozen products. Background Technology

[0002] In the frozen food packaging industry, PE film for food preservation needs to be rolled up using winding equipment to adapt to subsequent automated packaging processes. Currently, most mainstream winding equipment uses a dual-turntable two-point positioning system for fixing the winding drum. During unloading, manual judgment of the separation sequence between the turntables and the winding drum is required, which can easily lead to the winding drum shifting or falling due to asynchronous separation. This is especially problematic in frozen environments where operators' hand dexterity is reduced, resulting in a higher error rate. Furthermore, the traditional equipment's flipping and lowering mechanisms lack coordination with the winding drum's separation action. Flipping is easily interfered with by unseparated turntables, and lowering is prone to jamming due to the two-point positioning, leading to time-consuming and labor-intensive unloading operations. In addition, existing latching structures often use a single-angle bevel, requiring a fixed pulling force for separation, making orderly unlocking impossible. This further reduces the stability and efficiency of the winding operation, making it difficult to meet the automation and high stability requirements of frozen food packaging.

[0003] A search revealed patent publication number CN217894597U, which discloses an inkjet printing film winding device. The device includes a base, with a push-pull mechanism and a winding mechanism mounted on the upper surface of the base. The push-pull mechanism controls the left and right movement of a first support plate, thereby adjusting the distance between it and a second support plate, facilitating the installation of winding reels of different widths. The push-pull mechanism includes a buffer component to cushion the impact and prevent excessive clamping force from damaging the winding reel. A winding reel is installed between the push-pull mechanism and the winding mechanism. The surface of the winding reel has several sets of insertion holes. A second motor of the winding mechanism controls the rotation of the second support plate, and the winding reel simultaneously rotates to automatically wind the printing film. When the first support plate moves to the left, the plug disengages more quickly from the winding reel, allowing for easy removal and replacement of the winding reel. The device is easy to adjust and has a wide range of applications.

[0004] While existing technologies can achieve a certain winding effect during use, they suffer from the following drawbacks: they lack an automatic separation design based on mechanical properties and an efficient unloading mechanism that coordinates multiple motors with the separation action. In view of this, we propose a PE film winding device for the isolation and preservation of frozen products, which solves the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a PE film winding device for isolating and preserving frozen products.

[0006] The technical solution of this utility model is as follows: A PE film winding device for isolating and preserving frozen products includes a mounting plate, a first turntable, a second turntable, and insert rods. A first mounting frame and a second mounting frame are symmetrically positioned above the mounting plate. A first turntable is located on one side of the first mounting frame, and a second turntable is located on one side of the second mounting frame. Both the first and second turntables are provided with multiple insert rods arranged in a circumferential array. The end of each insert rod is conical in shape, and two symmetrical grooves are provided inside each insert rod. One side of each groove is fixedly connected to one end of a spring, and the other end of the spring is fixedly connected to the outer wall of a buckle. One end of the buckle has two inclined surfaces, one at 45 degrees and the other at 60 degrees. The conical shape at the end of the buckle acts as a pre-guide, and the spring continuously provides a pushing force to the buckle outward from the groove, ensuring that the buckle remains within the fitting groove.

[0007] When using the PE film winding device for frozen products in this solution, the controller first starts the second rotating motor to move the first mounting frame away from the second mounting frame, increasing the distance. Then, the slots on the mounting plates at both ends of the winding drum are aligned with the insertion rods of the first and second turntables. The second rotating motor is then started in the opposite direction to decrease the distance, guiding the insertion rod cone into the slot. The latch is compressed and retracts, then returns to its original position with the spring, embedding itself into the fitting groove, thus securing the winding drum. Subsequently, the third rotating motor is started, driving the second turntable to rotate the winding drum synchronously with the first turntable, allowing the PE film to be wound. After winding is complete, the controller sequentially controls: the second rotating motor drives the first mounting frame to move outward, allowing the winding drum to separate from the second turntable first; the fourth rotating motor drives the first mounting frame to rotate, moving the winding drum to the outside of the worktable; the first rotating motor drives the winding drum down to the appropriate height; finally, the winding drum is pulled outward, causing the first turntable latch to retract, allowing the winding drum to be removed and unloaded.

[0008] Preferably, a take-up drum is provided between the first turntable and the second turntable. Both ends of the take-up drum are fixedly connected to mounting plates. The mounting plates are provided with multiple slots arranged in a circumferential array. The slot surface is provided with two symmetrical fitting grooves, and the beveled end of the buckle fits and engages with the inner wall of the fitting groove.

[0009] Preferably, a second rotary motor is fixedly connected to one side of the outer wall of the mounting plate. The output shaft of the second rotary motor is fixedly connected to the rotation center of one end of the second lead screw. The mounting plate is provided with a second sliding groove. The other end of the second lead screw is connected to the groove surface of one side of the second sliding groove through a bearing. Driving the second rotary motor can make the second lead screw rotate.

[0010] Preferably, the outer wall of the second lead screw is provided with a second threaded seat, and a fourth rotary motor is fixedly connected to the upper outer wall of the second threaded seat. The output shaft of the fourth rotary motor is fixedly connected to the lower outer wall of the first mounting bracket. Rotation of the second lead screw can cause the second threaded seat to move along the direction of the second slide groove, and driving the fourth rotary motor can cause the first mounting bracket to rotate.

[0011] Preferably, a first rotating motor is fixedly connected to the upper outer wall of the first mounting bracket, a first sliding groove is provided on one side of the outer wall of the first mounting bracket, the output shaft of the first rotating motor is fixedly connected to the rotation center of one end of the first lead screw, and the other end of the first lead screw is connected to the lower end groove surface of the first sliding groove through a bearing, so that the height of the first threaded seat can be adjusted by driving the first rotating motor.

[0012] Preferably, the outer wall of the first lead screw is provided with a first threaded seat, and one side of the outer wall of the first threaded seat is connected to the rotation center of the first turntable through a bearing. The first threaded seat moves synchronously with the first turntable, and the first turntable is rotatable.

[0013] Preferably, the upper outer wall of the mounting plate is fixedly connected to the lower outer wall of the second mounting bracket, a third rotating motor is fixedly connected to one side outer wall of the second mounting bracket, the output shaft of the third rotating motor is fixedly connected to the rotation center of the second turntable, and a controller is fixedly connected to one side outer wall of the second mounting bracket. Driving the third rotating motor can make the second turntable rotate, and the controller is connected to the motor inside the device through a circuit.

[0014] Compared with existing technologies, the advantages of this utility model are: This invention achieves orderly separation of the winding drum through differentiated inclined plane angles and directional design, improving unloading safety and efficiency. The first turntable latch has a 45-degree inclined plane facing the first mounting frame, and the second turntable latch has a 60-degree inclined plane facing the second mounting frame. Utilizing the mechanical property that "the separation pull required for a 45-degree inclined plane is greater than that for a 60-degree inclined plane," when the second rotating motor drives the first mounting frame to move outward, the second turntable latch overcomes the smaller resistance to unlock first, allowing the winding drum to separate from the second turntable preferentially, while the first turntable latch remains engaged. This prevents the winding drum from shifting or falling during movement, and eliminates the need for manual judgment of the separation sequence, reducing operational errors and adapting to the high stability requirements of equipment in frozen product packaging scenarios.

[0015] Based on the first beneficial effect, the first and fourth rotary motors can complete the subsequent unloading actions more efficiently, further reducing the difficulty of operation and labor intensity. When the fourth rotary motor drives the first mounting frame to rotate the take-up drum to the outside of the worktable, since the take-up drum is only connected to the first turntable at a single point, there is no interference resistance from the second turntable during the rotation process, making the rotation smoother and eliminating concerns about the take-up drum colliding with the second mounting frame; when the first rotary motor drives the take-up drum to move downward, the single-point positioned take-up drum can be precisely adjusted to a height suitable for manual or robotic arm grasping, reducing unloading operation time.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a front view schematic diagram of the present utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 For the present utility model Figure 3 An enlarged schematic diagram of structure A in the middle.

[0018] Figure label: 1. First turntable; 2. First lead screw; 3. First mounting bracket; 4. Second lead screw; 5. Second slide rail; 6. Second mounting bracket; 7. Mounting plate; 8. Controller; 9. Third rotary motor; 10. Second turntable; 11. Take-up drum; 12. Mounting plate; 13. First rotary motor; 14. First threaded seat; 15. Fourth rotary motor; 16. Second threaded seat; 17. Buckle; 18. Spring; 19. Groove; 20. Inclined surface; 21. Slot; 22. Fitting groove; 23. Second rotary motor; 24. First slide rail; 25. Insert rod. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] 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 illustrating the device structure may be partially enlarged, not adhering 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, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0022] 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

[0023] Please see Figures 1-4As shown, this embodiment is a PE film winding device for isolating and preserving frozen products, including a mounting plate 7, a first turntable 1, a second turntable 10, and insert rods 25. A first mounting frame 3 and a second mounting frame 6 are symmetrically positioned above the mounting plate 7. The first turntable 1 is located on one side of the first mounting frame 3, and the second turntable 10 is located on one side of the second mounting frame 6. Both the first and second turntables 1 and 10 have multiple insert rods 25 arranged in a circular array. The ends of the insert rods 25 are conical in shape, and each insert rod 25 has two symmetrical grooves 19. One side of each groove 19 is fixedly connected to one end of a spring 18. The spring 18 is further... One end is fixedly connected to the outer wall of the buckle 17. The buckle 17 has two inclined surfaces 20 at one end, one of which is 45 degrees and the other is 60 degrees. In use, the spring 18 continuously applies an outward supporting force to the buckle 17, causing the buckle 17 to protrude from the surface of the insertion rod 25 in its normal state. When the insertion rod 25 is inserted into the slot 21, the cone at the end of the buckle 17 first acts as a pre-guide. Then, the 45-degree inclined surface 20 contacts the inner wall of the slot 21 and is subjected to a lateral compressive force. This compressive force is decomposed along the inclined surface 20 into an axial force that drives the buckle 17 to retract, causing the buckle 17 to compress the spring 18 and retract. Within the groove 19, ensure the insertion rod 25 is smoothly inserted; when the latch 17 moves to the engagement groove 22 position, the spring 18 resets and pushes the latch 17 into the engagement groove 22, achieving a stable engagement between the insertion rod 25 and the mounting plate 12. In the latch 17 of the insertion rod 25 on the first turntable 1, the 45-degree inclined surface 20 faces the side closer to the first mounting bracket 3, and the 60-degree inclined surface 20 faces the side closer to the second mounting bracket 6; in the latch 17 of the insertion rod 25 on the second turntable 10, the 60-degree inclined surface 20 faces the side closer to the second mounting bracket 6, and the 45-degree inclined surface 20 faces the side closer to the first mounting bracket 3; Due to the mechanical properties of the inclined plane 20, the tension required to overcome by the 45-degree inclined plane 20 under the same pressure is greater than that of the 60-degree inclined plane 20. Therefore, when the second rotating motor 23 drives the first mounting bracket 3 to move away from the second mounting bracket 6, the 60-degree inclined plane 20 of the buckle 17 on the second turntable 10 is first pushed by the inner wall of the fitting groove 22 to overcome the smaller resistance and compress the spring 18 to achieve priority separation between the winding drum 11 and the second turntable 10. The 45-degree inclined plane 20 of the buckle 17 on the first turntable 1 needs to overcome greater resistance to maintain the snap-fit ​​state with the winding drum 11 until it can be separated by actively applying force in the subsequent unloading step. Example 2

[0024] Please see Figures 1-4As shown, this embodiment, based on embodiment 1, further includes: a take-up drum 11 is provided between the first turntable 1 and the second turntable 10. Both ends of the take-up drum 11 are fixedly connected to mounting plates 12. The mounting plates 12 are provided with a plurality of slots 21 arranged in a circumferential array. The slot surface of the slot 21 is provided with two symmetrical fitting grooves 22. In use, the slots 21 correspond one-to-one with the insert rods 25. The conical end of the insert rod 25 fits against the entrance of the slot 21 to achieve precise alignment. When the buckle 17 is inserted into the fitting groove 22, the take-up drum 11 is axially limited between the two turntables and rotates synchronously with the turntables. During unloading, after the first mounting bracket 3 drives the take-up drum 11 away from the second turntable 10, flips it to the outside of the worktable and moves it down, the take-up drum 11 is pulled outward, so that the buckle 17 of the first turntable 1 is pushed and retracted, thereby releasing the buckle and taking out the take-up drum 11.

[0025] A second rotary motor 23 is fixedly connected to one side of the outer wall of the mounting plate 7. The output shaft of the second rotary motor 23 is fixedly connected to the rotation center of one end of the second lead screw 4. The mounting plate 7 is provided with a second sliding groove 5. The other end of the second lead screw 4 is connected to the groove surface of one side of the second sliding groove 5 through a bearing. In use, the controller 8 controls the second rotary motor 23 to rotate forward and backward, driving the second lead screw 4 to rotate synchronously, thereby driving the second threaded seat 16 to slide horizontally along the second sliding groove 5. When installing the take-up drum 11, the controller controls the second rotary motor 23 to move the first mounting frame 3 away from the second mounting frame. Move the second rotating motor 23 in the direction of 6 to increase the distance between the two to be greater than the length of the take-up drum 11, so as to facilitate the placement of the take-up drum 11. After placement, start the second rotating motor 23 in the opposite direction to reduce the distance until the insertion rod 25 is inserted into the slot 21 and engaged by the buckle 17, thus completing the installation and positioning of the take-up drum 11. When unloading, first drive the second rotating motor 23 to rotate forward, so that the second threaded seat 16 drives the first mounting bracket 3 to move away from the second mounting bracket 6, thereby driving the take-up drum 11 to move synchronously until the take-up drum 11 is completely disengaged from the second turntable 10, thus unlocking.

[0026] The outer wall of the second lead screw 4 is provided with a second threaded seat 16. The upper outer wall of the second threaded seat 16 is fixedly connected to a fourth rotary motor 15. The output shaft of the fourth rotary motor 15 is fixedly connected to the lower outer wall of the first mounting frame 3. In use, after winding is completed, the first mounting frame 3 is driven by the second rotary motor 23 to drive the winding drum 11 away from the second turntable 10. Then, the fourth rotary motor 15 is started to drive the first mounting frame 3 to rotate around its lower output shaft, thereby driving the first turntable 1 and the winding drum 11 to rotate to the outside of the worktable, avoiding interference between the winding drum 11 and the main body of the equipment, and providing operating space for subsequent lowering and unloading.

[0027] A first rotating motor 13 is fixedly connected to the upper outer wall of the first mounting frame 3. A first sliding groove 24 is provided on one side of the outer wall of the first mounting frame 3. The output shaft of the first rotating motor 13 is fixedly connected to the rotation center of one end of the first lead screw 2. The other end of the first lead screw 2 is connected to the lower groove surface of the first sliding groove 24 through a bearing. In use, the controller 8 controls the first rotating motor 13 to rotate forward and backward, drives the first lead screw 2 to rotate and drives the first threaded seat 14 to move up and down along the first sliding groove 24. During unloading, after the first mounting frame 3 drives the take-up drum 11 away from the second turntable 10 and flips to the outside of the worktable, the first rotating motor 13 is driven to rotate forward, so that the first threaded seat 14 drives the first turntable 1 and the take-up drum 11 to move down synchronously until the height of the take-up drum 11 matches the unloading requirements, making it convenient for manual or robotic arm to grasp.

[0028] The outer wall of the first lead screw 2 is provided with a first threaded seat 14. One side of the outer wall of the first threaded seat 14 is connected to the rotation center of the first turntable 1 through a bearing. When in use, when the first threaded seat 14 moves along the first slide groove 24, it drives the first turntable 1 to move up and down synchronously or move horizontally synchronously with the first mounting frame 3. The bearing allows the first turntable 1 to rotate freely relative to the first threaded seat 14, ensuring synchronous rotation during winding, and does not affect the lifting and turning actions during unloading.

[0029] The upper outer wall of the mounting plate 7 is fixedly connected to the lower outer wall of the second mounting bracket 6. A third rotating motor 9 is fixedly connected to one side of the outer wall of the second mounting bracket 6. The output shaft of the third rotating motor 9 is fixedly connected to the rotation center of the second turntable 10. A controller 8 is fixedly connected to one side of the outer wall of the second mounting bracket 6. During use, the controller 8 controls each rotating motor in the device.

[0030] Instructions for use: When using this device, first start the second rotating motor 23 via controller 8 to move the first mounting bracket 3 away from the second mounting bracket 6, increasing the distance. Then align the slots 21 of the mounting plates 12 at both ends of the take-up drum 11 with the insertion rods 25 of the first and second turntables 10. Then start the second rotating motor 23 in the opposite direction to reduce the distance. The cone-shaped insertion rods 25 are guided into the slots 21. The buckles 17 are compressed and retracted, then reset with the spring 18 and embed into the fitting grooves 22, completing the fixing of the take-up drum 11. Then start the third rotating motor 9 to drive the second turntable 10 to make the take-up drum 11 rotate synchronously with the first turntable 1, so that PE film can be wound up. After winding is completed, the controller 8 controls the following in sequence: the second rotary motor 23 drives the first mounting frame 3 to move outward, so that the winding drum 11 is separated from the second turntable 10 first; the fourth rotary motor 15 drives the first mounting frame 3 to flip, so that the winding drum 11 is rotated to the outside of the worktable; the first rotary motor 13 drives the winding drum 11 to move down to the appropriate height, and finally pulls the winding drum 11 outward, so that the first turntable 1 latch 17 retracts, and the winding drum 11 can be removed to complete the unloading.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A PE film winding device for isolating and preserving frozen products, comprising a mounting plate (7), a first turntable (1), a second turntable (10), and an insert rod (25), characterized in that: The mounting plate (7) is provided with a first mounting bracket (3) and a second mounting bracket (6) that are symmetrically arranged. The first mounting bracket (3) is provided with a first turntable (1) on one side, and the second mounting bracket (6) is provided with a second turntable (10) on one side. The first turntable (1) and the second turntable (10) are each provided with a plurality of insert rods (25) arranged in a circular array. The end of the insert rod (25) is shaped like a cone. The insert rod (25) is provided with two symmetrical grooves (19). One side of the groove (19) is fixedly connected to one end of the spring (18). The other end of the spring (18) is fixedly connected to the outer wall of one side of the buckle (17). One end of the buckle (17) is provided with two inclined surfaces (20), one of which is 45 degrees and the other is 60 degrees.

2. The PE film winding device for isolating and preserving frozen products according to claim 1, characterized in that: A take-up drum (11) is provided between the first turntable (1) and the second turntable (10). Both ends of the take-up drum (11) are fixedly connected to mounting discs (12). The mounting discs (12) are provided with a plurality of slots (21) arranged in a circular array. The slots (21) have two symmetrical fitting slots (22) on their surfaces.

3. The PE film winding device for isolating and preserving frozen products according to claim 1, characterized in that: A second rotating motor (23) is fixedly connected to the outer wall of one side of the mounting plate (7). The output shaft of the second rotating motor (23) is fixedly connected to the rotation center of one end of the second lead screw (4). The mounting plate (7) is provided with a second sliding groove (5). The other end of the second lead screw (4) is connected to the groove surface of one side of the second sliding groove (5) through a bearing.

4. A PE film winding device for isolating and preserving frozen products according to claim 3, characterized in that: The second lead screw (4) has a second threaded seat (16) on its outer wall. The upper outer wall of the second threaded seat (16) is fixedly connected to a fourth rotating motor (15). The output shaft of the fourth rotating motor (15) is fixedly connected to the lower outer wall of the first mounting bracket (3).

5. A PE film winding device for isolating and preserving frozen products according to claim 1, characterized in that: The first mounting bracket (3) is fixedly connected to the upper outer wall of the first rotating motor (13). The first mounting bracket (3) has a first sliding groove (24) on one side of the outer wall. The output shaft of the first rotating motor (13) is fixedly connected to the rotation center of one end of the first lead screw (2). The other end of the first lead screw (2) is connected to the lower groove surface of the first sliding groove (24) through a bearing.

6. A PE film winding device for isolating and preserving frozen products according to claim 5, characterized in that: The outer wall of the first lead screw (2) is provided with a first threaded seat (14), and the outer wall of one side of the first threaded seat (14) is connected to the rotation center of the first turntable (1) through a bearing.

7. A PE film winding device for isolating and preserving frozen products according to claim 1, characterized in that: The upper outer wall of the mounting plate (7) is fixedly connected to the lower outer wall of the second mounting bracket (6). A third rotating motor (9) is fixedly connected to one side outer wall of the second mounting bracket (6). The output shaft of the third rotating motor (9) is fixedly connected to the rotation center of the second turntable (10). A controller (8) is fixedly connected to one side outer wall of the second mounting bracket (6).

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