Bowl-shaped separable container, pet food packaging equipment and packaging method thereof

Abstract

The invention relates to the technical field of packaging equipment, in particular to a bowl-shaped separable container, pet food packaging equipment and a pet food packaging method.The packaging equipment comprises a rack, and a lifting bracket slidably installed on the rack through a sliding assembly is arranged on one side of the rack; a bearing groove disc used for bearing the bottom of the bowl-shaped separable container is rotationally installed on the lifting bracket, a pressing block used for pressing and limiting the top of the bowl-shaped separable container is arranged on the lifting bracket, and the pressing block is driven by a first driving mechanism to move up and down. An unwinding shaft is rotationally installed on the machine frame, a film winding drum is arranged on the unwinding shaft, the film winding drum is driven by a second driving mechanism to rotate, and the unwinding shaft is matched with the lifting bracket and the bearing groove disc through a linkage mechanism. And the packaging tightness and consistency are ensured, the structure is compact, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging equipment, in particular to a bowl-shaped detachable container, pet food packaging equipment and a packaging method thereof. BACKGROUND

[0002] With the upgrading of the pet consumption market, consumers have higher requirements for pet food packaging. Not only does it need to meet the basic sealing and preservation function, but it also expects the packaging itself to have additional values such as portability and direct use as a feeding bowl. In the prior art, pet food packaging is designed as a bowl-shaped detachable container, that is, the cup body and the cup cover are connected by clamping, and the cup cover itself can be used as a disposable pet feeding bowl.

[0003] To ensure the integrity of such packaging during transportation and sales, and to prevent the cup cover from accidentally separating from the cup body, an additional film seal package is usually applied to the outside. However, existing pet food packaging equipment has many inadaptability and limitations when faced with this new type of irregular bowl-shaped container.

[0004] Existing automated winding packaging equipment is usually designed for standard cylindrical or square packages, and it is difficult to effectively adapt to the concave-convex changes of the bowl-shaped container profile. To achieve a tight sealing effect, the ideal packaging method is to uniformly wind the film in a spiral or dense ring trajectory around the entire circumference of the container. In the prior art, the rotation and axial feed motion is achieved by using multiple independent drive sources such as a motor to control rotation and a motor to control axial movement, and the synchronous coordination is achieved through a complex electrical control system. This solution has the problems of complex structure, high manufacturing cost, and large space occupation.

[0005] Therefore, we provide a bowl-shaped detachable container pet food packaging equipment and a packaging method thereof to solve the above-mentioned problems. SUMMARY

[0006] The purpose of the present application is to provide a bowl-shaped detachable container, pet food packaging equipment and a packaging method thereof to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] A bowl-shaped detachable container, the bowl-shaped detachable container comprising a cup body and a cup cover that are clamped together, the cup body being provided with an annular tear line, and the bottom of the cup cover being provided with a triangular pyramid.

[0009] A pet food packaging equipment for sealing and packaging bowl-shaped detachable containers, comprising a rack, a lifting bracket slidingly installed on the rack through a sliding assembly on one side of the rack, a supporting groove disc for supporting the bottom of the bowl-shaped detachable container rotatably installed on the lifting bracket, a pressing block for pressing and limiting the top of the bowl-shaped detachable container arranged on the lifting bracket, the pressing block being driven to move up and down by a first driving mechanism;

[0010] A film winding shaft is rotatably installed on the rack, a film winding drum is arranged on the film winding shaft, the film winding drum is driven to rotate by a second driving mechanism, the film winding shaft cooperates with the lifting bracket and the supporting groove disc through a linkage mechanism, and the film winding shaft drives the lifting bracket to move up and down and drives the supporting groove disc to rotate when the film winding shaft rotates;

[0011] The sliding assembly comprises a guide rail fixed on the rack and a sliding block fixed on the lifting bracket, and the sliding block and the guide rail are in sliding cooperation.

[0012] The pet food packaging equipment as described above, wherein the first driving mechanism comprises a cylinder fixed on the lifting bracket, a piston rod is arranged on the output end of the cylinder, and the piston rod is rotatably connected with the pressing block.

[0013] The pet food packaging equipment as described above, wherein the second driving mechanism comprises a main shaft rotatably installed on the rack, a motor is fixedly installed on the rack, the output end of the motor is connected with the main shaft through a shaft coupling to drive the main shaft to rotate, the main shaft cooperates with the film winding shaft through a gear mechanism, and the main shaft drives the film winding shaft to rotate when the main shaft rotates.

[0014] The gear mechanism comprises a first gear fixed on the film winding shaft and a second gear fixed on the main shaft, and the first gear is engaged with the second gear.

[0015] The pet food packaging equipment comprises a linkage mechanism, a lifting bracket, a first driving mechanism and a second driving mechanism.

[0016] The key slot structure comprises a key fixed on the transmission rod and a key groove formed in the inner wall of the first transmission shaft sleeve.

[0017] The first sprocket mechanism comprises a first sprocket fixed on the first transmission shaft sleeve and a second sprocket fixed on the unwinding shaft.

[0018] The groove rolling structure comprises an annular curved groove formed on the lifting sleeve rod and a roller embeddedly installed on the inner wall of the second transmission shaft sleeve.

[0019] The second sprocket mechanism comprises a third sprocket fixed on the second transmission shaft sleeve and a fourth sprocket fixed on the unwinding shaft.

[0020] A method for packaging the bowl-shaped detachable container by using the pet food packaging equipment comprises the following steps.

[0021] S1, placing the bowl-shaped detachable container, which has completed pet food filling and in which the cup body and the cup cover are mutually clamped and matched, on the supporting groove disc, starting the first driving mechanism to push the pressing block to move downward, applying pressure to the top of the bowl-shaped detachable container, and realizing axial compression and limiting.

[0022] S2, the second driving mechanism is started, the unwinding shaft is driven to rotate, the unwinding shaft drives the first transmission shaft sleeve to rotate synchronously through the first sprocket mechanism, the transmission rod at the bottom of the supporting groove disc is inserted into the rotating first transmission shaft sleeve, and transmission cooperation is realized through the key groove structure, so that the supporting groove disc starts to rotate synchronously with the first transmission shaft sleeve, drives the bowl-shaped split container that is compressed to rotate around the central axis thereof;

[0023] S3, at the same time, the unwinding shaft drives the second transmission shaft sleeve synchronously through the second sprocket mechanism, the second transmission shaft sleeve is matched with the lifting sleeve rod through the groove rolling structure in the second transmission shaft sleeve, drives the lifting sleeve rod and the lifting bracket connected therewith to reciprocate up and down along the sliding assembly;

[0024] S4, in the process that the bowl-shaped split container is compressed and uniformly rotated, the film roll on the unwinding shaft rotates synchronously to unwind the packaging film, one end of the packaging film is fixed on the outer peripheral wall of the bowl-shaped split container, and the continuous rotation of the bowl-shaped split container drives the packaging film to wind around the outer periphery, so that a tight packaging layer is formed, and at the same time, the lifting bracket reciprocates up and down slowly and periodically under the drive of the second transmission shaft sleeve, so that the packaging film is wound in a spiral track or a dense ring track on the whole outer periphery of the bowl-shaped split container;

[0025] S5, when the packaging film is wound to a preset number of layers or coverage area, the driving mechanism controls the bowl-shaped split container to pause at a specific angle, and the heat sealing and cutting device is used to press, seal and cut the packaging film;

[0026] S6, finally, the first driving mechanism drives the compression block to rise and separate from the top of the bowl-shaped split container, and the bowl-shaped split container that has completed the packaging film sealing and packaging is taken off from the supporting groove disc.

[0027] Compared with the prior art, the beneficial effects of the present application are:

[0028] (1) only one motor is used as the power source for packaging operation in the present application, after the motor drives the main shaft to rotate, the film unwinding operation of the film roll, the rotation of the bowl-shaped split container on the supporting groove disc and the up-and-down axial reciprocating motion are realized synchronously through the mechanical linkage mechanism such as gear mechanism, first sprocket mechanism, second sprocket mechanism and groove rolling structure, which greatly simplifies the structure of the equipment and the electrical control system, reduces the manufacturing cost and maintenance complexity, avoids the common synchronization error and fault risk in multi-motor cooperative control, and significantly improves the stability and reliability of the equipment operation;

[0029] (2), the application realizes the automation of the whole process from the feeding and pressing, winding, heat sealing and cutting to the discharging and resetting, the operator only needs to place the bowl-shaped detachable container on the supporting groove disc, after starting the equipment, the pressing block is pressed and fixed, the supporting groove disc rotates and cooperates with the feeding of the lifting bracket to complete the winding, finally the pressing block is lifted and reset, the completed packaged container can be taken away, the whole process is high in automation degree, greatly reduces the labor intensity, significantly improves the production efficiency, and is very suitable for large-scale production. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a pet food packaging equipment.

[0031] Figure 2 It is Figure 1 A partially exploded schematic diagram.

[0032] Figure 3 It is Figure 2 A partially exploded schematic diagram.

[0033] Figure 4 It is Figure 3 A partially exploded schematic diagram.

[0034] Figure 5 It is Figure 3 A partially exploded schematic diagram.

[0035] Figure 6 It is Figure 5 An enlarged structure schematic diagram at A in the middle.

[0036] Figure 7 It is Figure 5 An enlarged structure schematic diagram at B in the middle.

[0037] Figure 8 It is a structure schematic diagram of a bowl-shaped detachable container.

[0038] In the figure: 1, bowl-shaped detachable container; 101, cup body; 102, cup cover; 103, annular easy-to-tear line; 104, triangular pyramid; 2, rack; 3, lifting bracket; 4, supporting groove disc; 5, guide rail; 6, sliding block; 7, air cylinder; 8, piston rod; 9, pressing block; 10, unwinding shaft; 11, film roll; 12, main shaft; 13, motor; 14, first gear; 15, second gear; 16, first transmission shaft sleeve; 17, transmission rod; 18, first sprocket; 19, second sprocket; 20, first chain; 21, key groove; 22, key; 23, second transmission shaft sleeve; 24, lifting sleeve rod; 25, third sprocket; 26, fourth sprocket; 27, second chain; 28, annular curved groove; 29, roller; 30, flexible tensioning roller. DETAILED DESCRIPTION

[0039] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0040] Please refer to Figures 1-8 As an embodiment of the present application, a bowl-shaped detachable container includes a cup body 101 and a cup cover 102 matched and clamped with each other. The cup body 101 is provided with an annular easy-to-tear line 103 with an inclination of 25°. The bottom of the cup cover 102 is provided with a triangular pyramid 104. During use, the upper half of the cup body 101 can be easily torn off through the annular easy-to-tear line 103, and the lower half can be used as the base of the cup cover 102. The cup cover 102 is placed in the cup body 101, which can increase the stability of the cup cover 102 during use as a cover bowl, avoid food waste caused by the cover bowl being overturned due to the eating action of a pet, and simultaneously, due to the inclined design of the cutting line, the bowl opening presents an inclined state of 25° when placed on a plane, which is more in line with the eating habits of pets.

[0041] The pet food packaging equipment is used for sealing and packaging the bowl-shaped detachable container, and includes a rack 2. One side of the rack 2 is provided with a lifting bracket 3 slidably installed on the rack 2 through a sliding assembly. The lifting bracket 3 is rotatably installed with a supporting groove disc 4 used for supporting the bottom of the bowl-shaped detachable container 1. The lifting bracket 3 is provided with a pressing block 9 used for pressing and limiting the top of the bowl-shaped detachable container 1. The pressing block 9 is driven to move up and down through a first driving mechanism.

[0042] A film winding shaft 10 is rotatably installed on the rack 2. The film winding shaft 10 is provided with a film winding drum 11. The film winding drum 11 is driven to rotate through a second driving mechanism. The film winding shaft 10 cooperates with the lifting bracket 3 and the supporting groove disc 4 through a linkage mechanism. When the film winding shaft 10 rotates, the lifting bracket 3 moves up and down and the supporting groove disc 4 rotates.

[0043] In use, in the embodiment, first, the bowl-shaped detachable container 1 is placed on the supporting groove plate 4, and the bottom of the bowl-shaped detachable container 1 is embedded on the supporting groove plate 4, so that the bottom of the bowl-shaped detachable container 1 is limited and supported, the first driving mechanism drives the pressing block 9 to move downward to press and fix the top of the bowl-shaped detachable container 1, so that the bowl-shaped detachable container 1 can be kept stable during operation, then the second driving mechanism drives the film winding drum 11 to rotate to drive the unwinding shaft 10 to rotate to unwind the film, since the unwinding shaft 10 is connected with the lifting bracket 3 and the supporting groove plate 4 through the linkage mechanism, the rotation of the unwinding shaft 10 drives the lifting bracket 3 to move up and down along the sliding assembly, and simultaneously drives the supporting groove plate 4 to rotate, the up and down movement of the lifting bracket 3 adjusts the vertical position of the bowl-shaped detachable container 1, and the rotation of the supporting groove plate 4 rotates the bowl-shaped detachable container 1, so that the sealing and packaging operation of the bowl-shaped detachable container 1 is realized, after completion, the first driving mechanism drives the pressing block 9 to rise to release the bowl-shaped detachable container 1, the supporting groove plate 4 stops rotating, and the bowl-shaped detachable container 1 can be taken out.

[0044] It should be noted that the flexible tensioning roller 30 is also rotatably installed on the rack 2, and the flexible tensioning roller 30 is located between the bowl-shaped detachable container 1 and the film winding drum 11, the flexible tensioning roller 30 adjusts the tension of the film in real time through the built-in adjusting mechanism such as spring, pneumatic or servo system, so as to ensure that the film will not relax and wrinkle due to insufficient tension, and will not be stretched, deformed or torn due to excessive tension.

[0045] As a further scheme of the application, the sliding assembly comprises a guide rail 5 fixed on the rack 2 and a sliding block 6 fixed on the lifting bracket 3, and the sliding block 6 and the guide rail 5 are in sliding cooperation.

[0046] In the embodiment, the sliding assembly provides stable and accurate linear guidance for the up and down movement of the lifting bracket 3 on the rack 2 through the sliding cooperation of the guide rail 5 and the sliding block 6, so as to ensure that the lifting bracket 3 and the bowl-shaped detachable container 1 carried thereby can stably ascend and descend along the predetermined track.

[0047] As a further scheme of the application, the first driving mechanism comprises a pneumatic cylinder 7 fixed on the lifting bracket 3, and a piston rod 8 is arranged at the output end of the pneumatic cylinder 7, and the piston rod 8 is rotatably connected with the pressing block 9.

[0048] In the embodiment, the first driving mechanism drives the piston rod 8 to move linearly by pushing or pulling the piston rod 8 at the output end of the pneumatic cylinder 7, so as to realize the pressing and releasing of the top of the bowl-shaped detachable container 1, and the rotatable connection allows the pressing block 9 to rotate when it is pressed.

[0049] As a further scheme of the present application, the second driving mechanism comprises a main shaft 12 rotatably installed on the frame 2, a motor 13 fixedly installed on the frame 2, and a coupling connecting the output end of the motor 13 with the main shaft 12 to drive the main shaft 12 to rotate, and the main shaft 12 is cooperated with the unwinding shaft 10 through a gear mechanism, so that the main shaft 12 drives the unwinding shaft 10 to rotate when the main shaft 12 rotates.

[0050] The gear mechanism comprises a first gear 14 fixed on the unwinding shaft 10 and a second gear 15 fixed on the main shaft 12, and the first gear 14 is engaged with the second gear 15.

[0051] In this embodiment, the motor 13 of the second driving mechanism drives the main shaft 12 to rotate through the coupling, the second gear 15 fixed on the main shaft 12 is engaged with the first gear 14 fixed on the unwinding shaft 10, so as to transmit power to the unwinding shaft 10 and drive it to rotate, thereby realizing the unwinding of the film roll 11 and the initial driving function.

[0052] As a further scheme of the present application, the linkage mechanism comprises a first transmission shaft sleeve 16 rotatably installed on the frame 2, the bottom of the supporting groove disc 4 is provided with a transmission rod 17 movably inserted into the first transmission shaft sleeve 16, the first transmission shaft sleeve 16 is cooperated with the transmission rod 17 through a key groove structure, the first transmission shaft sleeve 16 drives the transmission rod 17 to rotate when the first transmission shaft sleeve 16 rotates and the transmission rod 17 can slide in the first transmission shaft sleeve 16, the first transmission shaft sleeve 16 is cooperated with the unwinding shaft 10 through a first chain wheel mechanism, the unwinding shaft 10 drives the first transmission shaft sleeve 16 to rotate synchronously when the unwinding shaft 10 rotates, the lifting bracket 3 is provided with a lifting sleeve rod 24, the frame 2 is rotatably installed with a second transmission shaft sleeve 23, the lifting sleeve rod 24 is movably inserted into the second transmission shaft sleeve 23, and the transmission rod 17 is inserted into the lifting sleeve rod 24, the lifting sleeve rod 24 is cooperated with the second transmission shaft sleeve 23 through a groove rolling structure, the second transmission shaft sleeve 23 drives the lifting sleeve rod 24 to reciprocate up and down when the second transmission shaft sleeve 23 rotates, and the second transmission shaft sleeve 23 is cooperated with the unwinding shaft 10 through a second chain wheel mechanism, so that the unwinding shaft 10 drives the second transmission shaft sleeve 23 to rotate synchronously when the unwinding shaft 10 rotates.

[0053] In this embodiment, the rotation of the unwinding shaft 10 drives the first transmission shaft sleeve 16 to rotate synchronously through the first sprocket mechanism, and the first transmission shaft sleeve 16 drives the transmission rod 17 to rotate through the key groove structure, thereby driving the support groove plate 4 and the bowl-shaped detachable container 1 to rotate. On the other hand, the rotation of the unwinding shaft 10 drives the second transmission shaft sleeve 23 to rotate synchronously through the second sprocket mechanism, and the slot roller structure inside the second transmission shaft sleeve 23 converts the rotary motion into the up-and-down reciprocating linear motion of the lifting sleeve rod 24 matched with the second transmission shaft sleeve 23. Since the lifting sleeve rod 24 is fixed on the lifting bracket 3, the lifting bracket 3, together with the support groove plate 4 and the bowl-shaped detachable container 1 thereon, is driven to lift as a whole. The key groove structure ensures that the transmission rod 17 can not only transmit torque but also slide up and down relative to the first transmission shaft sleeve 16 to adapt to the lifting of the lifting bracket 3.

[0054] As a further scheme of the present application, the key groove structure includes a key 22 fixed on the transmission rod 17 and a key groove 21 opened in the inner wall of the first transmission shaft sleeve 16, and the key 22 and the key groove 21 are in sliding fit.

[0055] In this embodiment, the cooperation between the key 22 and the key groove 21 is a reliable structure for realizing torque transmission and axial relative sliding, which ensures that the transmission rod 17 can not only transmit torque but also slide up and down in the first transmission shaft sleeve 16.

[0056] As a further scheme of the present application, the first sprocket mechanism includes a first sprocket 18 fixed on the first transmission shaft sleeve 16 and a second sprocket 19 fixed on the unwinding shaft 10, and the first sprocket 18 and the second sprocket 19 are in transmission through a first chain 20.

[0057] In this embodiment, the first sprocket mechanism is specifically composed of the second sprocket 19, the first sprocket 18 and the first chain 20, which ensures the power transmission from the unwinding shaft 10 to the first transmission shaft sleeve 16.

[0058] As a further scheme of the present application, the slot roller structure includes an annular curve slot 28 opened on the lifting sleeve rod 24 and a roller 29 embedded and installed in the inner wall of the second transmission shaft sleeve 23, and the roller 29 and the annular curve slot 28 are in sliding fit.

[0059] In this embodiment, the slot roller structure specifically shows that the annular curve slot 28 opened on the lifting sleeve rod 24 cooperates with the roller 29 installed in the inner wall of the third sprocket 25, which converts the rotary motion of the third sprocket 25 into the up-and-down reciprocating motion of the lifting sleeve rod 24 along the curve slot track.

[0060] As a further scheme of the present application, the second sprocket mechanism includes a third sprocket 25 fixed on the second transmission shaft sleeve 23 and a fourth sprocket 26 fixed on the unwinding shaft 10, and the third sprocket 25 and the fourth sprocket 26 are in transmission through a second chain 27.

[0061] In this embodiment, the second sprocket mechanism is specifically composed of the fourth sprocket 26, the third sprocket 25 and the second chain 27, ensuring the power transmission from the unwinding shaft 10 to the second transmission shaft sleeve 23.

[0062] In operation, first, the bowl-shaped detachable container 1 is fixed on the supporting groove plate 4, the first driving mechanism drives the pressing block 9 to move downward, and the bowl-shaped detachable container 1 is pressed and fixed at the top, the second driving mechanism is started, and the unwinding shaft 10 is rotated to unwind the film. The rotation of the unwinding shaft 10 is decomposed into two coordinated actions through the linkage mechanism: one is that the first transmission shaft sleeve 16 is driven to rotate through the first sprocket mechanism, and the supporting groove plate 4 is driven to rotate through the key groove structure and the transmission rod 17, so that the bowl-shaped detachable container 1 rotates around its own axis; the other is that the second transmission shaft sleeve 23 is driven to rotate through the second sprocket mechanism, and the bowl-shaped detachable container 1 is driven to move up and down through the groove rolling structure and the lifting sleeve rod 24 and the entire lifting bracket 3, the rotational movement and the lifting movement of the bowl-shaped detachable container 1 are combined into a spiral trajectory, so that the packaging film released from the film roll 11 can be spirally wound on the outer wall of the bowl-shaped detachable container 1, realizing complete sealing and packaging of the bowl-shaped detachable container 1. After the packaging is completed, each drive is stopped, the pressing block 9 is lifted, and the packaged bowl-shaped detachable container 1 can be taken out.

[0063] The above embodiments are exemplary but not restrictive, and the technical solutions of the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application, which are all included in the present application.

Claims

1. A bowl-shaped separable container, characterized by comprising: The cup (101) and the cup cover (102) are matched and clamped, the annular easy-to-tear line (103) is arranged on the cup (101), and the triangular pyramid (104) is arranged on the bottom of the cup cover (102).

2. A pet food packaging apparatus for sealing and packaging the bowl-shaped separable container as claimed in claim 1, characterized by, The rack (2) is provided with the lifting bracket (3) slidingly installed on the rack (2) through a sliding assembly on one side, the lifting bracket (3) is provided with the bearing groove disc (4) for bearing the bottom of the bowl-shaped split container (1) and rotatingly installed on the lifting bracket (3), the lifting bracket (3) is provided with the pressing block (9) for pressing and limiting the top of the bowl-shaped split container (1), and the pressing block (9) is driven to move up and down through a first driving mechanism; The rack (2) is provided with the unwinding shaft (10) rotatingly installed on the rack (2), the film winding drum (11) is arranged on the unwinding shaft (10), the film winding drum (11) is driven to rotate through a second driving mechanism, and the unwinding shaft (10) is matched with the lifting bracket (3) and the bearing groove disc (4) through a linkage mechanism, so that the lifting bracket (3) is driven to move up and down and the bearing groove disc (4) is driven to rotate when the unwinding shaft (10) rotates. The sliding assembly comprises the guide rail (5) fixed on the rack (2) and the sliding block (6) fixed on the lifting bracket (3), and the sliding block (6) is slidingly matched with the guide rail (5).

3. A pet food packaging apparatus according to claim 2, wherein The first driving mechanism comprises the air cylinder (7) fixed on the lifting bracket (3), and the output end of the air cylinder (7) is provided with the piston rod (8) rotatingly connected with the pressing block (9).

4. A pet food packaging apparatus according to claim 2, wherein The second driving mechanism comprises the main shaft (12) rotatingly installed on the rack (2), the motor (13) is fixedly installed on the rack (2), the output end of the motor (13) is connected with the main shaft (12) through a shaft coupling to drive the main shaft (12) to rotate, and the main shaft (12) is matched with the unwinding shaft (10) through a gear mechanism, so that the unwinding shaft (10) is driven to rotate when the main shaft (12) rotates. The gear mechanism comprises the first gear (14) fixed on the unwinding shaft (10) and the second gear (15) fixed on the main shaft (12), and the first gear (14) is engaged with the second gear (15).

5. A pet food packaging apparatus according to claim 2, wherein The linkage mechanism comprises a first transmission shaft sleeve (16) rotatably mounted on the frame (2), the bottom of the supporting groove disc (4) is provided with a transmission rod (17) movably inserted into the first transmission shaft sleeve (16), the first transmission shaft sleeve (16) is matched with the transmission rod (17) through a key groove structure, the first transmission shaft sleeve (16) drives the transmission rod (17) to rotate when the first transmission shaft sleeve (16) rotates and the transmission rod (17) can slide in the first transmission shaft sleeve (16), the first transmission shaft sleeve (16) is matched with the unwinding shaft (10) through a first sprocket mechanism, the first transmission shaft sleeve (16) rotates synchronously when the unwinding shaft (10) rotates, the lifting bracket (3) is provided with a lifting sleeve rod (24), the frame (2) is rotatably provided with a second transmission shaft sleeve (23), the lifting sleeve rod (24) is movably inserted into the second transmission shaft sleeve (23), and meanwhile the transmission rod (17) is inserted into the lifting sleeve rod (24), the lifting sleeve rod (24) and the second transmission shaft sleeve (23) are matched through a groove rolling structure, the second transmission shaft sleeve (23) drives the lifting sleeve rod (24) to move up and down reciprocatingly when the second transmission shaft sleeve (23) rotates, and the second transmission shaft sleeve (23) and the unwinding shaft (10) are matched through a second sprocket mechanism, the second transmission shaft sleeve (23) rotates synchronously when the unwinding shaft (10) rotates.

6. A pet food packaging apparatus according to claim 5, wherein The key groove structure comprises a key (22) fixed on the transmission rod (17) and a key groove (21) formed in the inner wall of the first transmission shaft sleeve (16), and the key (22) is slidably matched with the key groove (21).

7. A pet food packaging apparatus according to claim 5, wherein The first sprocket mechanism comprises a first sprocket (18) fixed on the first transmission shaft sleeve (16) and a second sprocket (19) fixed on the unwinding shaft (10), and the first sprocket (18) and the second sprocket (19) are driven through a first chain (20).

8. A pet food packaging apparatus according to claim 5, wherein The groove rolling structure comprises an annular curve groove (28) formed on the lifting sleeve rod (24) and a roller (29) embeddedly mounted on the inner wall of the second transmission shaft sleeve (23), and the roller (29) is slidably matched with the annular curve groove (28).

9. A pet food packaging apparatus according to claim 5, wherein The second sprocket mechanism comprises a third sprocket (25) fixed on the second transmission shaft sleeve (23) and a fourth sprocket (26) fixed on the unwinding shaft (10), and the third sprocket (25) and the fourth sprocket (26) are driven through a second chain (27).

10. A method of packaging a bowl-shaped, separable container using the pet food packaging apparatus according to any one of claims 2 to 9, characterized by, The method comprises the following steps, S1, placing the bowl-shaped detachable container (1) on which pet food has been filled and the cup body (101) and the cup cover (102) are matched with each other on the supporting groove disc (4), starting the first driving mechanism to drive the pressing block (9) to move downward, applying pressure to the top of the bowl-shaped detachable container (1), and realizing axial compression and limiting; S2, start the second drive mechanism, drive the unwinding shaft (10) rotation, unwinding shaft (10) through the first sprocket mechanism driven first transmission shaft sleeve (16) synchronous rotation, the transmission rod (17) of the bottom of the support groove disc (4) is inserted into the rotating first transmission shaft sleeve (16), and the key groove structure is realized transmission matching, so that the support groove disc (4) starts to rotate with the first transmission shaft sleeve (16) synchronous rotation, drive the bowl-shaped container (1) is compressed together around the central axis of rotation; S3, at the same time, the unwinding shaft (10) through the second sprocket mechanism driven second transmission shaft sleeve (23) synchronous rotation, the second transmission shaft sleeve (23) through the slot roll structure in its inside and the lifting sleeve rod (24) cooperation, drive the lifting sleeve rod (24) and its connected lifting bracket (3) along the sliding assembly reciprocating movement up and down; S4, in the process of bowl-shaped container (1) is compressed and uniform rotation, the film roll (11) on the unwinding shaft (10) synchronous rotation to the packaging film, the packaging film is fixed to the outer wall of the bowl-shaped container (1), the continuous rotation of the bowl-shaped container (1) drive the packaging film winding its outer periphery, form a tight packaging layer, at the same time, the lifting bracket (3) in the second transmission shaft sleeve (23) drive slow, periodic reciprocating movement up and down, so that the packaging film is wrapped in a spiral track or dense ring track on the entire outer periphery of the bowl-shaped container (1); S5, when the packaging film winding reaches the preset number of layers or coverage area, the drive mechanism control bowl-shaped container (1) pause at a specific angle, using heat sealing device to cut off the packaging film compression, sealing and cutting; S6, finally, the first drive mechanism drive compression block (9) rises, off the bowl-shaped container (1) top, the bowl-shaped container (1) has completed the packaging film sealing package from the support groove disc (4) on the take down.

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