Isolating membrane slitting and tensioning device

Abstract

The utility model discloses an isolating membrane slitting and tensioning device which comprises discharging frames, and a slip shaft connected with a feeding membrane roll is assembled between the discharging frames. The isolating membrane slitting and tensioning device further comprises a tensioning mechanism for tensioning a membrane material, the tensioning mechanism comprises a tensioning pipe assembled and connected to the discharging frame, a plurality of membrane pressing wheels are assembled and connected to the tensioning pipe, each membrane pressing wheel comprises a wheel carrier rotationally connected to the tensioning pipe, and the membrane pressing wheels are rotationally connected to the wheel carriers. The wheel carrier is in threaded connection with a locking screw rod for pressing the tensioning pipe; the two ends of the tensioning pipe are assembled and connected to the discharging frame through adjusting structures correspondingly, and the tensioning force is adjusted through the adjusting structures. An annular groove for limiting a film material is formed in the film pressing wheel, and the film material is limited in the annular groove in the film material discharging process; the position between the film pressing wheel and the tensioning pipe is adjusted through a horizontal adjusting structure. According to the device, in the battery processing process, multiple strands of unwound film materials are fully tensioned and then conveyed, and the technical defect that the film materials are too loose and are difficult to process is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery discharge films, and in particular relates to a separation film slitting and tensioning device. Background Art

[0002] Batteries are a type of portable energy device that has a wide range of applications in the industry. For example, batteries can be used in new energy devices as a power source for new energy devices. The most common use of batteries is in new energy vehicles as a power source for new energy vehicles.

[0003] Since batteries are widely used in industry, there is a huge demand for them in the consumer market, and they are mass-produced in industry as a safe and environmentally friendly energy source.

[0004] In the battery production process, various membrane materials are needed. For example, in the lithium battery production process, a large number of isolation membranes are needed to isolate the battery electrodes.

[0005] Therefore, during the slitting production process, the rolled isolation film is unloaded on the material shaft, and in order to meet the processing needs, multiple rolls of film are often unloaded on the material shaft, and slitting is performed after the synchronous unloading production.

[0006] However, in the actual production process, it is found that due to the high flexibility of the isolation film, the film is very loose during the unwinding process, especially if the film is not tensioned at the beginning of the unwinding process, the film is extremely loose during the long-distance unwinding process, resulting in large errors in production and processing. If the film is too loose, it is easy to make it difficult to cut when cutting. Obviously, the traditional unwinding device cannot solve this technical problem.

[0007] In addition, since the isolation membrane produced and processed needs to meet a certain degree of cleanliness, the surface of the membrane material needs to be cleaned during the processing. However, since the material discharge speed on the production line is too fast, it is difficult to clean. This is reflected in conventional cleaning methods such as setting a brush for cleaning. The brush needs to be replaced after a period of cleaning. The high-speed machine has already unwound a large length of membrane material during the replacement period, and stopping for replacement leads to reduced efficiency. The repeated start and stop of the processing equipment is prone to malfunctions and many other defects. Utility Model Content

[0008] Based on the above background, the purpose of the utility model is to provide a separation film slitting and tensioning device.

[0009] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0010] A separation film slitting and tensioning device comprises a material unwinding rack, wherein a slip shaft connected to a feeding film roll is arranged between the material unwinding racks;

[0011] The isolation film slitting and tensioning device also includes a tensioning mechanism for tensioning the film material, the tensioning mechanism includes a tensioning tube assembled and connected to the material unwinding rack, the tensioning tube is assembled and connected to a plurality of film pressing wheels, the film pressing wheels include a wheel frame rotatably connected to the tensioning tube, the wheel frame is rotatably connected to the film pressing wheel;

[0012] The wheel frame is threadedly connected with a locking screw of a contact pressure tensioning tube;

[0013] The two ends of the tensioning tube are respectively connected to the material unwinding rack through an adjustment structure, and the tensioning force is adjusted through the adjustment structure;

[0014] The film pressing wheel is provided with an annular groove for limiting the film material, and during the film material discharge process, the film material is limited in the annular groove;

[0015] The positions of the film pressing wheel and the tensioning tube are adjusted by a horizontal adjustment structure.

[0016] Preferably, the wheel carrier is slidably connected to the tensioning tube;

[0017] The horizontal adjustment structure includes a plurality of pairs of nuts respectively threadedly connected to the tensioning tube;

[0018] The nuts are positioned on both sides of the wheel carrier.

[0019] Preferably, the isolation film slitting and tensioning device further includes an air blowing structure;

[0020] During the film unwinding process, the surface of the film is cleaned by the air blowing structure.

[0021] Preferably, the air blowing structure comprises a plurality of air blowing pipes connected to the tensioning pipe, and the air outlet ends of the air blowing pipes are integrally formed with air nozzles;

[0022] The air blowing structure also includes an air inlet pipe connected to the tensioning pipe.

[0023] Preferably, the air blowing pipe is arranged at an angle, and the air nozzle faces the slip differential shaft.

[0024] Preferably, a limiting material rod is fixedly connected between the material discharging racks, and both ends of the limiting material rod are respectively fixedly connected with connecting screws, and the connecting screws are installed on the material discharging racks.

[0025] Preferably, the adjustment structure comprises an adjustment opening opened on the frame, and an inner sliding rod is fixedly connected in the adjustment opening;

[0026] Both ends of the tensioning tube are respectively fixedly connected with sliding seats which are slidably connected to the inner sliding rod.

[0027] Preferably, the adjustment structure further comprises a return spring sleeved on the inner sliding rod, and two ends of the return spring are respectively fixedly connected to the bottom of the sliding seat and the bottom of the adjustment port.

[0028] Preferably, the outer end of the slide seat protrudes an adjustment opening;

[0029] The adjustment structure also includes an outer sliding screw rod slidably connected to the outer end of the slide seat; a pressing nut for pressing the slide seat is threadedly connected to the outer sliding screw rod;

[0030] The bottom of the outer sliding screw is fixedly connected with a base, and the base is welded on the material discharging rack.

[0031] The utility model has the following beneficial effects:

[0032] 1. Through the tensioning mechanism, specifically, a tensioning tube is assembled and connected to the unwinding frame, and a plurality of film pressing wheels are assembled and connected to the tensioning tube. The film pressing wheel includes a wheel frame rotatably connected to the tensioning tube, and the film pressing wheel is rotatably connected to the wheel frame; the wheel frame is threadedly connected to a locking screw that contacts and presses the tensioning tube. During the working process, the locking screw is loosened, and the wheel frame is rotated until the downward pressure angle of the film pressing wheel changes. In this way, the tensioning force is fine-tuned, and then the locking screw is locked. This method realizes the synchronous tensioning of multiple rolls during the unwinding process.

[0033] 2. Through the adjustment structure, specifically, a reset spring sleeved on the inner sliding rod is adopted, and the two ends of the reset spring are fixedly connected to the bottom of the slide seat and the bottom of the adjustment port respectively. The outer end of the slide seat protrudes the adjustment port; the adjustment structure also includes an outer sliding screw slidably connected to the outer end of the slide seat; the outer sliding screw is threadedly connected with a pressing nut that presses down the slide seat; the bottom of the outer sliding screw is fixedly connected with a base, and the base is welded on the material unloading rack. The tensioning force can be adjusted in a large range through the adjustment structure, and the tensioning force can be finely adjusted with the locking screw to fully tension the film material. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the utility model;

[0036] Figure 2 This is a schematic diagram of the structure of the film pressing wheel in the embodiment of the utility model;

[0037] Figure 3 This is a structural schematic diagram of the adjustment structure in the embodiment of the utility model;

[0038] Figure 4 For the utility model embodiment Figure 1 A schematic diagram of the structure from another perspective;

[0039] Figure 5 For the utility model embodiment Figure 1 Top view of .

[0040] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0044] Example 1

[0045] like Figure 1-5 As shown, an isolation film slitting and tensioning device includes a material unloading rack 2 (the material unloading rack 2 includes end frame plates symmetrically arranged on left and right sides, which are provided with mounting holes. According to the existing conventional method, the material unloading rack is installed to the material inlet position of the processing equipment through mounting structures such as mounting rods).

[0046] A slip shaft 1 connected to the feeding film roll is assembled between the above-mentioned unloading racks 2; according to the existing method, the film roll is rolled on the slip shaft 1, and during operation, the film material is unloaded by using the slip ring-film roll on the slip shaft 1 (that is, the film roll is located on the slip shaft 1 but not on the slip ring).

[0047] The above-mentioned isolation film slitting and tensioning device also includes a tensioning mechanism for tensioning the film material, which realizes tensioning after unwinding, keeping the starting end of the film material in a very high tensioning posture, so as to avoid relaxation and ensure that the unwinding film material maintains the correct trajectory and is transported smoothly.

[0048] Specifically, the tensioning mechanism includes a tensioning tube 3 assembled and connected to the unloading rack 2, and a plurality of film pressing wheels are assembled and connected to the tensioning tube 3. The film pressing wheel includes a wheel frame 41 rotatably connected to the tensioning tube 3, and a film pressing wheel 42 is rotatably connected to the wheel frame 41; a locking screw 411 that contacts and presses the tensioning tube 3 is threadedly connected to the wheel frame 41.

[0049] During operation, the locking screw 411 is loosened, and the wheel frame 41 is rotated until the downward pressing angle of the film pressing wheel 42 changes. In this way, the tensioning force is fine-tuned, and then the locking screw 411 is locked.

[0050] At the same time, in order to ensure that the film material is fully compressed, the above-mentioned film pressing wheel 42 is provided with an annular groove for limiting the film material. During the film material discharge process, the film material is limited in the annular groove 421. In this way, it is ensured that the film material does not leave the annular groove 421 during the tensioning process, maintains effective tension and maintains the correct trajectory for transportation.

[0051] At the same time, the film pressing wheel 42 and the tensioning tube 3 are adjusted in position by a horizontal adjustment structure. The wheel frame 41 is slidably connected to the tensioning tube 3; the horizontal adjustment structure includes a plurality of pairs of nuts 31 respectively threadedly connected to the tensioning tube 3; the nuts 31 are positioned on both sides of the wheel frame 41.

[0052] In this way, during the unwinding process, the film pressing wheel 42 position is adjusted according to the film position of the unwinding film material to ensure that the film pressing wheel 42 can touch the film material. This adjustment method is a fine adjustment, which aims to limit the film material to the film pressing wheel 42-annular groove 421 structure after horizontal adjustment.

[0053] At the same time, a limiting rod 7 is fixedly connected between the unwinding racks 2, and both ends of the limiting rod 7 are respectively fixedly connected with connecting screws, which are installed on the unwinding rack 2. The limiting rod is used to limit the unwinding film material.

[0054] Example 2

[0055] like Figure 1-5As shown, in this embodiment, based on the structure of embodiment 1, both ends of the tensioning tube 3 are respectively connected to the material unwinding rack 2 through an adjustment structure, and the tensioning force is adjusted through the adjustment structure. The adjustment structure can adjust the tensioning force in a wide range, and cooperate with the adjustment method of the locking screw 411 to achieve the best tensioning of the film material after adjustment.

[0056] Specifically, the adjustment structure includes an adjustment opening opened on the frame, in which an inner sliding rod 32 is fixedly connected; correspondingly, both ends of the tensioning tube 3 are respectively fixedly connected with sliding seats slidably connected to the inner sliding rod 32.

[0057] The adjustment structure also includes an inner sliding rod 33 sleeved on the inner sliding rod 32, and the two ends of the inner sliding rod 33 are respectively fixedly connected to the bottom of the slide seat and the bottom of the adjustment port. The outer end of the slide seat protrudes the adjustment port; the adjustment structure also includes an outer sliding screw 34 slidably connected to the outer end of the slide seat; the outer sliding screw 34 is threadedly connected to a pressing nut 341 that presses down the slide seat; the bottom of the outer sliding screw 34 is fixedly connected to a base, and the base is welded to the unloading rack 2.

[0058] The adjustment method is as follows:

[0059] First, adjust by pressing the nut downward, such as during the downward adjustment process, the tensioning tube 3-sliding seat slides on the inner sliding rod 32 and the outer sliding screw 34, and the inner sliding rod 33 is compressed during the process. After adjustment, the tensioning tube 3-film pressing wheel 42 structure fully contacts and presses on the film material to achieve tensioning.

[0060] During the relaxation process, the pressing nut is screwed down, and the restoring force of the inner sliding rod 33 cooperates to quickly adjust the tension of the pressing wheel 42 structure pressing on the film material.

[0061] Example 3

[0062] like Figure 1-5 As shown, based on the structure of embodiment 1, the isolation film slitting and tensioning device of this embodiment further includes an air blowing structure. The air blowing structure is used to remove dust from the unwinding film material by air blowing during the unwinding process to achieve clean film material.

[0063] Specifically, the air blowing structure includes a plurality of air blowing pipes 5 connected to the tensioning pipe 3 (the tensioning pipe 3 is a stainless steel pipe), and the air outlet end of the air blowing pipe 5 is integrally formed with an air nozzle. At the same time, the air blowing structure also includes an air inlet pipe 6 connected to the tensioning pipe 3. According to the existing conventional method, the air inlet pipe 6 is connected to the pump air pipe of the external air pump through a flange. During operation, the air pump pumps air toward the tensioning pipe 3, and gas with a certain air pressure is ejected from the air blowing pipe 5 and blown toward the unwinding film material to remove dust on the film material.

[0064] In the working process of the above method, the air blowing method solves the dirt on the film material. This method can process the film material for a long time, and the air blowing method can continue to work for a long time.

[0065] In order to fully apply the air blowing gas to the film material, the air blowing pipe 5 is tilted, and the air nozzle faces the slip shaft 1.

[0066] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A separation film slitting and tensioning device, characterized in that: It includes unwinding racks, and a slip shaft connected to a feeding film roll is installed between the unwinding racks; The isolation film slitting and tensioning device also includes a tensioning mechanism for tensioning the film material, the tensioning mechanism includes a tensioning tube assembled and connected to the material unwinding rack, the tensioning tube is assembled and connected to a plurality of film pressing wheels, the film pressing wheels include a wheel frame rotatably connected to the tensioning tube, the wheel frame is rotatably connected to the film pressing wheel; The wheel frame is threadedly connected with a locking screw of a contact pressure tensioning tube; The two ends of the tensioning tube are respectively connected to the material unwinding rack through an adjustment structure, and the tensioning force is adjusted through the adjustment structure; The film pressing wheel is provided with an annular groove for limiting the film material, and during the film material discharge process, the film material is limited in the annular groove; The positions of the film pressing wheel and the tensioning tube are adjusted by a horizontal adjustment structure.

2. The separator slitting and tensioning device according to claim 1, characterized in that: The wheel frame is slidably connected to the tensioning tube; The horizontal adjustment structure includes a plurality of pairs of nuts respectively threadedly connected to the tensioning tube; The nuts are positioned on both sides of the wheel carrier.

3. The separator slitting and tensioning device according to claim 1, characterized in that: The isolation film slitting and tensioning device also includes an air blowing structure; During the film unwinding process, the surface of the film is cleaned by the air blowing structure.

4. The separator slitting and tensioning device according to claim 3, characterized in that: The air blowing structure comprises a plurality of air blowing pipes connected to the tensioning pipe, and the air outlet end of the air blowing pipe is integrally formed with an air nozzle; The air blowing structure also includes an air inlet pipe connected to the tensioning pipe.

5. The separator slitting and tensioning device according to claim 4, characterized in that: The air blowing pipe is arranged obliquely, and the air nozzle faces the slip differential shaft.

6. The separator slitting and tensioning device according to claim 1, characterized in that: A limiting rod is fixedly connected between the material discharging racks, and both ends of the limiting rod are respectively fixedly connected with connecting screws, and the connecting screws are installed on the material discharging racks.

7. The separator slitting and tensioning device according to claim 1, characterized in that: The adjustment structure comprises an adjustment opening formed on the frame, wherein an inner sliding rod is fixedly connected to the adjustment opening; Both ends of the tensioning tube are respectively fixedly connected with sliding seats which are slidably connected to the inner sliding rod.

8. The separator slitting and tensioning device according to claim 7, characterized in that: The adjustment structure also includes a return spring sleeved on the inner sliding rod, and two ends of the return spring are respectively fixedly connected to the bottom of the sliding seat and the bottom of the adjustment port.

9. The separator slitting and tensioning device according to claim 8, characterized in that: The outer end of the slide seat protrudes an adjustment opening; The adjustment structure also includes an outer sliding screw rod slidably connected to the outer end of the slide seat; a pressing nut for pressing the slide seat is threadedly connected to the outer sliding screw rod; The bottom of the outer sliding screw is fixedly connected with a base, and the base is welded on the material discharging rack.

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