Heat shrinkage film packaging machine

Abstract

The utility model relates to the field of film sleeving of power batteries, in particular to a heat shrinkage film packaging machine which comprises a film sleeving part and a film feeding part. A pushed thermal shrinkage film is sleeved on a rotary drum in the film feeding part; the film sleeving part comprises a plurality of guide rollers adjacent to the guide rollers, the guide rollers are arranged on the rolling surfaces of the guide rollers and are matched with the pushing of the thermal shrinkage film, the battery is positioned on the guide rollers, the end part of the battery is in a posture of abutting against the guide rollers, and the whole battery is sleeved with the pushed thermal shrinkage film under the traction of the guide rollers; it is not difficult to see that when the battery is transversely arranged, the sleeving mode that film sleeving can be carried out is achieved, and due to the application of the guide roller, on one hand, the purpose of supporting the guide roller to be transversely arranged is achieved, and on the other hand, the problem that when the battery is transversely arranged, due to friction and too few gaps, the heat shrinkage film cannot be completely arranged on the battery in a sleeving mode is solved.

Description

Technical Field

[0001] The utility model relates to the field of sleeve films of power batteries, in particular to a heat shrink film packaging machine. Background Art

[0002] In the later stages of power battery production, the batteries need to be packaged and transported.

[0003] Battery packaging, as the name suggests, is to put a packaging heat shrink film on the battery, and by heating the battery, the packaging heat shrink film shrinks and forms according to the shape of the battery.

[0004] Conventional wrapping equipment is mainly used for small-sized batteries. The wrapping method of this type of wrapping equipment is to keep the battery in a vertical position and wrap the heat shrink film on the battery from top to bottom in sequence.

[0005] With the development trend of power batteries today, the size of batteries has gradually increased and the center of gravity has moved upward. Traditional film coating equipment has a relatively weak positioning effect on batteries, and the uncontrollable positioning effect causes the batteries to easily tip over. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a heat shrink film packaging machine to solve the problem that batteries are prone to tipping over.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is: a heat shrink film packaging machine, characterized in that it includes the following parts:

[0008] The film covering part and the film delivery part;

[0009] The rotating drum in the film feeding part is covered with a heat shrink film that is pushed forward;

[0010] The film covering part includes a plurality of guide rollers adjacent to the guide rollers, the guide rollers are arranged on their rolling surfaces to cooperate with the advancement of the above-mentioned heat shrinkable film, the battery is supported by the guide rollers, and is in a posture where its ends are against the guide rollers, and the advanced heat shrinkable film is covered on the entire battery under the traction of the guide rollers.

[0011] Furthermore, the film feeding part includes a guide wheel attached to the open member, and the guide wheel is sleeved on the rotating rod of the rotating mechanism to drive the heat shrink film attached to the open member to move forward in a driven manner.

[0012] Furthermore, a plurality of auxiliary driven wheels are provided, and the driven wheels are arranged on the open member or outside the open member, or on both.

[0013] Furthermore, the tail of the open member is flat, and the shape of the open member expands from the tail to the head so that the circumference gradually increases, and the increase in circumference stops at the middle of the open member.

[0014] Furthermore, a cutting groove is reserved on the outer circumference of the rotating drum, and the film feeding part includes a rotary cutting mechanism used in conjunction with the cutting groove. The cutter on the rotary cutting mechanism is in the cutting groove and rotates along the circumference of the cutting groove to cut off the heat shrink film on the rotating drum.

[0015] Furthermore, the rotary cutting mechanism includes a rotating drum and a knife seat located on the rotating drum, and the knife seat is provided with a cutting knife facing the cutting groove.

[0016] Furthermore, it also includes a top knife assembly, including a first sliding assembly, a top knife cylinder, a movable plate, a guide member, and a second sliding assembly. The first sliding assembly and the second sliding assembly are respectively arranged on the edge of the rotating drum and on the side thereof in a form in which the movable directions are perpendicular to each other. The knife holder is arranged on the first movable sliding block of the first sliding assembly and has an inclined surface that abuts against the second movable sliding block. The second movable sliding block can be pushed toward the inclined surface to enable the knife holder to move into the cutting groove along the movable direction of the first sliding assembly to cut the heat shrink film. The movable plate is sleeved on the periphery of the rotating drum and is installed in the base in the film feeding part through the guide member. The outer shell of the top knife cylinder is fixed on the movable plate, and its piston rod passes through the movable plate and is connected to the inner plate in the base. When the inner plate is stationary, the movable plate pushes the second movable sliding block to slide.

[0017] Furthermore, a mounting block and a guide rod assembled on the mounting block are provided on the edge of the rotating drum. The guide rod is inserted into the first movable slider. A spring is sleeved on the guide rod. The spring is located between the mounting block and the first movable slider. Under the action of the spring, the knife seat is guided to reset.

[0018] Furthermore, a first bearing is provided at one end of the second movable slider in contact with the movable plate, and the second movable slider is guided to rotate on the movable plate through a rolling surface on the first bearing.

[0019] Furthermore, a second bearing is provided at the ends of the first movable sliding block and the knife seat which abut against each other, and the rolling surface of the second bearing abuts against the above-mentioned inclined surface.

[0020] Beneficial effects of the utility model:

[0021] It is not difficult to see that the utility model realizes a method of applying film to the battery when it is placed horizontally. The application of the guide roller, on the one hand, serves the purpose of supporting the guide roller to be placed horizontally, and on the other hand, solves the problem that when the battery is placed horizontally, one side of the battery cannot be completely covered with the heat shrink film due to friction and insufficient gap. In other words, in addition to reducing the center of gravity of the battery, the friction problem is additionally solved, so that the heat shrink film can be completely covered on the battery, solving the problem of the battery being easily tipped over. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a stereogram of the utility model.

[0023] Figure 2 yes Figure 1 An enlarged schematic diagram of point A.

[0024] Figure 3 yes Figure 1 An enlarged schematic diagram of point B.

[0025] Figure 4 It is a three-dimensional diagram of the connection between the rotary cutting mechanism and the internal structure of the abutment.

[0026] Figure 5 yes Figure 4 Another perspective view.

[0027] Figure 6 yes Figure 5 Enlarged schematic diagram of point C.

[0028] Figure 7 Yes Figure 4 A three-dimensional image of the abutment with part of its internal structure hidden.

[0029] Figure 8 yes Figure 7 Another perspective view.

[0030] Fig. 9 It is a three-dimensional diagram of the knife block. DETAILED DESCRIPTION

[0031] The utility model is a heat shrink film packaging machine, in which the batteries are kept in a horizontal arrangement. The advantage of the horizontal arrangement of the batteries M is that the center of gravity can be lowered, the stability of the film sleeve is improved, and the batteries M will not fall over when the film sleeve is being applied.

[0032] like Figure 1-9 As shown, this heat shrink film packaging machine includes the following parts:

[0033] The film casing part D and the film delivery part S;

[0034] The rotating drum S6 in the film feeding part S is covered with a heat shrink film N which is pushed in the direction of the arrow;

[0035] The film covering part D includes a plurality of guide rollers D1 adjacent to the guide rollers. The guide rollers D1 are arranged on their rolling surfaces to cooperate with the advancement of the heat shrinkable film N. The battery M is located on the guide rollers D1 and is in a posture where its end is against the guide rollers D1. The advanced heat shrinkable film N is covered on the entire battery M under the traction of the guide rollers D1.

[0036] It is not difficult to see that the utility model realizes a method in which the battery M can be covered with film when it is placed horizontally. The application of the guide roller D1, on the one hand, serves the purpose of supporting the guide roller D1 to be placed horizontally, and on the other hand, solves the problem that when the battery M is placed horizontally, one side of the battery M cannot be completely covered with the heat shrink film N due to friction and insufficient gap. That is to say, in addition to reducing the center of gravity of the battery M, the friction problem is additionally solved, so that the heat shrink film N can be completely covered on the battery M, solving the problem that the battery M is easy to tip over.

[0037] The heat shrink film N mentioned above is advanced as follows: the film feeding part S includes a guide wheel S2 attached to the open component S1, and the guide wheel S2 is mounted on the rotating rod of the rotating mechanism S3, so as to advance the heat shrink film N attached to the open component S1 in a driven manner; the advantage of this structure is that it prevents the heat shrink film N from wrinkling when being advanced.

[0038] In the embodiment, a plurality of auxiliary driven wheels S4 are provided. The driven wheels S4 are arranged on the open member S1 or outside the open member S1, or both. When the heat shrink film N is pushed forward, the driven wheels S4 can reduce the friction coefficient of the movement of the heat shrink film N, so that the advancement of the heat shrink film N is smoother.

[0039] The above-mentioned opening member S1 is used to expand the layered heat shrinkable film N. The tail S1'a of the opening member S1 is flat to accommodate the entry of the heat shrinkable film N. The shape of the opening member S1 expands from the tail S1'a to the head so that the circumference gradually increases. In the embodiment, the increase in circumference stops at the middle part S1'b of the opening member S1. The purpose of this design is to allow the heat shrinkable film N to be expanded in an orderly manner, rather than the heat shrinkable film N being expanded suddenly and drastically. The sudden and drastic expansion will cause the heat shrinkable film N to lack sufficient support, which is prone to film jamming.

[0040] The end of the guide roller D1 is driven by the first motor D2 through a belt. This active traction method guides the heat shrink film N to be smoothly put on the battery M.

[0041] The film feeding part S also includes a feeding mechanism S5 with a material roll (heat shrink film N). The feeding mechanism S5 and the rotating mechanism S3 are prior arts, and therefore, their structures are not described in detail.

[0042] The head of the open member S1 is connected to the drum S6 through a connecting tube. A cutting groove is reserved on the outer circumference of the drum S6 near the connecting tube. The film feeding part S includes a rotary cutting mechanism used in conjunction with the cutting groove. The cutter 1 on the rotary cutting mechanism is in the cutting groove and rotates along the circumference of the cutting groove to cut off the heat shrink film N on the drum S6.

[0043] In the embodiment, the heat shrink film packaging machine is provided with a plurality of them, and they are arranged in an orderly manner. In the orderly space, the rotary cutting mechanism has the characteristics of being compact and occupying a small space. Its structure includes:

[0044] The rotating drum S6 is sleeved on the connecting tube and the knife holder 2 is located on the edge of the rotating drum S6. The knife holder 2 has a cutting knife 1 facing the cutting groove. The rotating drum S6 is driven by a driving motor 16 through a belt, so that the knife holder 2 connected to the rotating drum S6 cuts the heat shrink film N by rotating.

[0045] In addition, it also includes a top knife assembly, which is used to control the cutter 1 to have two steps of entering and retreating into the cutting groove. The top knife assembly, which has also been optimized in structure, includes a first sliding assembly 3, a top knife cylinder 4, a movable plate 5, and a second sliding assembly 6. The first sliding assembly 3 and the second sliding assembly 6 are respectively arranged on the edge of the rotating drum S6 and on its side in a form in which the moving directions are perpendicular to each other. The knife holder 2 is arranged on the first movable slider 3a of the first sliding assembly 3 and has an inclined surface 2a that abuts against the second movable slider 6a. The second movable slider 6a can move toward the inclined surface 2a to make the knife holder 2 move into the cutting groove along the moving direction of the first sliding assembly 3 to cut the heat shrink film N;

[0046] The movable plate 5 is sleeved on the outer periphery of the rotating drum S6 and is installed in the base 8 in the film feeding part S through the guide member 7. The outer shell of the top knife cylinder 4 is fixed on the movable plate 5, and its piston rod passes through the movable plate 5 and is connected to the inner plate 8a in the base 8. When the inner plate 8a is stationary, the movable plate 5 pushes the second movable slider 6a to slide.

[0047] A mounting block 9 and a guide rod 10 mounted on the mounting block 9 are also provided on the edge of the rotating drum S6. The guide rod 10 is inserted into the first movable slider 3a. A spring 11 is sleeved on the guide rod 10. The spring 11 is located between the mounting block 9 and the first movable slider 3a. Under the action of the spring 11, the knife seat 2 is guided to reset.

[0048] Since the second movable slider 6a rotates with the drum S6, in order to reduce the friction between the second movable slider 6a and the movable plate 5, a first bearing 12 is provided at one end of the second movable slider 6a that contacts the movable plate 5, and the second movable slider 6a is guided to rotate on the movable plate 5 through the rolling surface of the first bearing 12;

[0049] In addition, a second bearing 13 is provided at the end portions of the first movable slider 3a and the tool holder 2 which abut against each other, and the rolling surface of the second bearing 13 abuts against the inclined surface 2a.

[0050] In the embodiment, a positioning mechanism adjacent to the first guide roller D1 is further provided along the direction in which the heat shrink film N is pushed, and the positioning mechanism includes a push plate 14 and a push plate cylinder 15. The push plate 14 has an area that fully contacts the edge of the heat shrink film N. After completing the unidirectional pushing of the heat shrink film N, the push plate cylinder 15 positions the relative length between the heat shrink film N and the battery M by pushing the push plate 14, so as to facilitate the subsequent thermoforming of the heat shrink film N.

[0051] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A heat shrink film packaging machine, characterized in that: Contains the following parts: The film covering part and the film delivery part; The rotating drum in the film feeding part is covered with a heat shrink film that is pushed forward; The film covering part includes a plurality of guide rollers adjacent to the guide rollers, the guide rollers are arranged on their rolling surfaces to cooperate with the advancement of the above-mentioned heat shrinkable film, the battery is supported by the guide rollers, and is in a posture where its ends are against the guide rollers, and the advanced heat shrinkable film is covered on the entire battery under the traction of the guide rollers.

2. A heat shrink film packaging machine according to claim 1, characterized in that: The film feeding part includes a guide wheel attached to the open component, and the guide wheel is sleeved on the rotating rod of the rotating mechanism to drive the heat shrink film attached to the open component to move forward in a driven manner.

3. The heat shrink film packaging machine according to claim 1, characterized in that: A plurality of auxiliary driven wheels are also provided, and the driven wheels are arranged on the open member or outside the open member, or on both of them.

4. A heat shrink film packaging machine according to claim 2, characterized in that: The tail of the open member is flat, and the shape of the open member expands from the tail to the head so that the circumference gradually increases, and the increase in circumference stops at the middle of the open member.

5. The heat shrink film packaging machine according to claim 1, characterized in that: A cutting groove is reserved on the outer circumference of the rotating drum, and the film feeding part includes a rotary cutting mechanism used in conjunction with the cutting groove. The cutter on the rotary cutting mechanism is in the cutting groove and rotates along the circumference of the cutting groove to cut off the heat shrink film on the rotating drum.

6. The heat shrink film packaging machine according to claim 5, characterized in that: The rotary cutting mechanism comprises a rotating drum and a knife seat located on the rotating drum, wherein the knife seat is provided with a cutting knife facing the cutting groove.

7. The heat shrink film packaging machine according to claim 6, characterized in that: The invention also includes a top knife assembly, which includes a first sliding assembly, a top knife cylinder, a movable plate, a guide member, and a second sliding assembly. The first sliding assembly and the second sliding assembly are respectively arranged on the edge of the rotating drum and on the side thereof in a form in which the movable directions are perpendicular to each other. The knife holder is arranged on the first movable sliding block of the first sliding assembly and has an inclined surface that abuts against the second movable sliding block. The second movable sliding block can be pushed toward the inclined surface to enable the knife holder to move into the cutting groove along the movable direction of the first sliding assembly to cut the heat shrink film. The movable plate is sleeved on the periphery of the rotating drum and is installed in the base in the film feeding part through the guide member. The outer shell of the top knife cylinder is fixed on the movable plate, and its piston rod passes through the movable plate and is connected to the inner plate in the base. When the inner plate is stationary, the movable plate pushes the second movable sliding block to slide.

8. The heat shrink film packaging machine according to claim 6, characterized in that: A mounting block and a guide rod assembled on the mounting block are also provided on the edge of the rotating drum. The guide rod is inserted into the first movable slider. A spring is sleeved on the guide rod. The spring is located between the mounting block and the first movable slider. Under the action of the spring, the knife seat is guided to reset.

9. The heat shrink film packaging machine according to claim 7, characterized in that: A first bearing is arranged at one end of the second movable slider in contact with the movable plate, and the second movable slider is guided to rotate on the movable plate through the rolling surface on the first bearing.

10. The heat shrink film packaging machine according to claim 7, characterized in that: The ends of the first movable sliding block and the knife seat which abut against each other are provided with a second bearing, and the rolling surface of the second bearing abuts against the inclined surface.

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