Pole roll rolling equipment

Abstract

The utility model relates to the technical field of battery manufacturing, in particular to pole roll rolling equipment which comprises a rolling mechanism, a heating assembly and a first tension adjusting mechanism. And the rolling mechanism is used for rolling the pole roll which is recovered to the normal temperature after being coated and dried. The heating assembly is arranged on the downstream portion of the rolling mechanism and used for blowing hot air to the two opposite side edges of the rolled pole roll so as to heat the two opposite side edges of the rolled pole roll. After the two opposite side edges of the pole roll are heated, the plasticity is greatly improved. And the first tension adjusting mechanism is arranged at the downstream of the rolling mechanism. The swing roller can swing so as to control the tension borne by the pole roll. When the swing roller pulls the heated pole roll, the two opposite side edges of the heated pole roll are shaped through the shaping parts at the two ends, and wrinkles generated when the pole roll is subjected to rolling are effectively eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a pole roll pressing device. Background Art

[0002] During the battery production process, the middle area of ​​the pole roll is used as the coating area, and the two opposite sides are used as the empty foil area. After the slurry is applied to the coating area of ​​the pole roll, the pole roll is dried. After the pole roll is dried, the pole roll needs to be rolled to a preset thickness. Since there is a coating attached to the middle area of ​​the pole roll, the thickness of the middle area of ​​the pole roll is greater than the thickness of the two opposite sides. When it is rolled, the middle area has a certain ductility after rolling, while the empty foil area is not extended without rolling, causing the empty foil area to bend and wrinkle. Usually, the substrate of the pole roll is made of metal, and the empty foil area of ​​the pole roll can be cold stretched by cold stretching to extend the empty foil area of ​​the pole roll to eliminate wrinkles.

[0003] However, for the composite pole coil, the base is made of non-metallic material, which has high elasticity and poor plasticity. The method of eliminating wrinkles by cold stretching is obviously no longer applicable. Utility Model Content

[0004] The utility model provides a pole roll rolling device, which is used for eliminating wrinkles produced by rolling of a composite pole roll.

[0005] The utility model provides a pole roll pressing device, comprising:

[0006] Rolling mechanism, used for rolling pole coils;

[0007] A heating assembly is disposed downstream of the rolling mechanism and is used to blow hot air toward two opposite sides of the pole roll after rolling to heat the two opposite sides of the pole roll after rolling;

[0008] The first tension adjustment mechanism is arranged downstream of the rolling mechanism, and includes a swinging roller; the side wall of the swinging roller is used to receive the heated pole coil and can swing to adjust the tension of the pole coil; shaping parts are respectively installed at the opposite ends of the swinging roller; when the swinging roller acts on the heated pole coil, the shaping parts at the two ends shape the opposite side edges of the heated pole coil.

[0009] In some embodiments, the heating assembly comprises:

[0010] The air heater forms a heating chamber inside; the airflow is heated by the heating chamber and then flows to the pole roll.

[0011] In some embodiments, the heating assembly further comprises:

[0012] The air volume regulator is connected to the air heater and is used to adjust the air volume flowing into the air heater or to adjust the air volume flowing out of the air heater.

[0013] In some embodiments, the heating assembly further comprises:

[0014] a draft tube, connected to the air heater, for guiding air flow to the pole roll;

[0015] The air outlet nozzle is connected with the air heater through a drainage tube.

[0016] In some embodiments, the drainage tube is a bendable tube.

[0017] In some embodiments, the heating assembly further comprises:

[0018] The filter is connected to the air heater and is used for filtering the air flow to the air heater or filtering the air flow out of the air heater.

[0019] In some embodiments, the first tension adjustment mechanism further comprises:

[0020] The cooling roller has a side wall for receiving and cooling the pole coil after shaping.

[0021] In some embodiments, the rolling mechanism includes:

[0022] There are two or more pressing rollers, which are arranged in parallel, and a roller pressing gap is formed between the side walls.

[0023] In some embodiments, it also includes:

[0024] A second tension adjustment mechanism, disposed upstream of the rolling mechanism, for adjusting the tension of the pole roll before rolling;

[0025] a third tension adjustment mechanism, disposed upstream of the second tension adjustment mechanism, for adjusting the tension of the pole roll released from the unwinding mechanism;

[0026] a fourth tension adjustment mechanism, disposed downstream of the first tension adjustment mechanism, for adjusting the tension of the pole roll before winding;

[0027] A first tension isolation mechanism is provided between the second tension adjustment mechanism and the third tension adjustment mechanism and is used to isolate the tension;

[0028] The second tension isolating mechanism is arranged between the first tension adjusting mechanism and the fourth tension adjusting mechanism and is used for isolating the tension.

[0029] In some embodiments, it also includes:

[0030] An unwinding mechanism, disposed upstream of the second tension adjusting mechanism, for releasing the pole roll;

[0031] The winding mechanism is arranged downstream of the fourth tension adjusting mechanism and is used for winding the pole roll.

[0032] The beneficial effects of the utility model are as follows: the pole roll rolling equipment of the utility model is provided with a rolling mechanism, and the rolling mechanism is used to roll the pole roll that has been restored to normal temperature after coating and drying. The heating component is used to blow hot air to the opposite sides of the pole roll after rolling to heat the opposite sides of the pole roll after rolling. After the opposite sides of the pole roll are heated, the plasticity is greatly improved. The swing roller can swing to adjust the tension on the pole roll. When the swing roller pulls the heated pole roll, the shaping parts at both ends shape the opposite sides of the heated pole roll, effectively eliminating the wrinkles caused by the pole roll being rolled. Compared with the traditional cold stretching method, the opposite sides of the pole roll no longer spontaneously restore the deformation due to their own elasticity, which improves the effect of eliminating wrinkles. Compared with the traditional hot stretching method, hot air is used to realize a non-contact heating method, which makes it easier to remove or move the heating source to the heating position, ensure the heating effect, and avoid the problem that the opposite sides of the pole roll are damaged by excessive heating or the wrinkle elimination effect is poor due to low heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of some specific embodiments of a pole roll pressing device of the utility model;

[0034] Figure 2 yes Figure 1 The structure schematic diagrams of some specific embodiments of the heating components in the pole roll pressing equipment are shown.

[0035] In the accompanying drawings, 110, rolling mechanism; 111, pressing roller; 112, first reversing roller; 113, second reversing roller; 120, heating assembly; 121, air heater; 122, air volume regulator; 123, drainage pipe; 124, air outlet nozzle; 125, filter; 130, first tension adjustment mechanism; 131, swing roller; 132, third reversing roller; 133, cooling roller; 140, second tension adjustment mechanism; 150, third tension adjustment mechanism; 160, fourth tension adjustment mechanism; 170, first tension isolation mechanism; 180, second tension isolation mechanism; 191, unwinding mechanism; 192, rewinding mechanism; 200, pole roll; 210, coating area; 220, empty foil area. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are 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.

[0037] It should be noted that if Figure 2As shown, the middle area of ​​the pole roll 200 is used as the coating area 210, and the two opposite sides are used as the empty foil area 220. After the pole roll 200 is cut into pole pieces, the empty foil area 220 is used as the pole lug.

[0038] As mentioned in the background art, usually, the base of the pole coil is made of metal, and the empty foil area 220 of the pole coil 200 can be cold stretched by cold stretching to extend the empty foil area 220 of the pole coil 200 to eliminate wrinkles. However, for the composite pole coil, the base is made of non-metallic material, which has high elasticity and poor plasticity, and the method of eliminating wrinkles by cold stretching is obviously no longer applicable.

[0039] To solve the above problems, refer to Figure 1 and Figure 2 The utility model provides a pole roll rolling device, including a rolling mechanism 110, a heating assembly 120 and a first tension adjustment mechanism 130. The rolling mechanism 110 is used to roll the pole roll 200 that has been restored to room temperature after coating and drying. The heating assembly 120 is arranged downstream of the rolling mechanism 110, and is used to blow hot air to the opposite sides of the pole roll 200 after rolling, so as to heat the opposite sides of the pole roll 200 after rolling, and heat the opposite sides of the pole roll 200 to 200℃-500℃. After the opposite sides of the pole roll 200 are heated, the plasticity is greatly improved. The first tension adjustment mechanism 130 is arranged downstream of the rolling mechanism 110. The first tension adjustment mechanism 130 includes a swinging roller 131. The side wall of the swinging roller 131 is used to receive the pole roll 200 after heating. The swinging roller 131 can swing to adjust the tension of the pole roll 200. Shaping parts are respectively installed at the opposite ends of the swinging roller 131. When the swing roller 131 acts on the heated pole coil 200, the shaping parts at both ends cushion the opposite sides of the pole coil 200, and shape the opposite sides of the heated pole coil 200, effectively eliminating the wrinkles caused by the pole coil 200 being rolled. Compared with the traditional cold stretching method, the opposite sides of the pole coil 200 no longer spontaneously recover their deformation due to their own elasticity, which improves the effect of eliminating wrinkles. Compared with the traditional hot stretching method, hot air is used to achieve a non-contact heating method, which makes it easier to remove the heating source or move it to the heating position, ensuring the heating effect, and avoiding the problem that the opposite sides of the pole coil 200 are damaged by excessive heating or the wrinkle elimination effect is poor due to low heating.

[0040] Preferably, each shaping part can be formed by a section of high temperature resistant adhesive tape wound around the swing roller 131, or can be a shaping ring. Each shaping part is connected to the swing roller 131 in a detachable manner.

[0041] Specifically, in the exemplary embodiment, the heating assembly 120 includes an air heater 121, an air volume regulator 122, a drainage pipe 123, an air outlet nozzle 124, a filter 125 and an air pump. A heating chamber is formed inside the air heater 121. The air flow is heated in the heating chamber and flows to the pole roll 200. The air volume regulator 122 is connected to the inlet end or the outlet end of the air heater 121, and is used to adjust the air volume flowing into the air heater 121 or to adjust the air volume flowing out of the air heater 121 according to actual heating requirements. The drainage pipe 123 is directly connected to the outlet end of the air heater 121 or is connected to the outlet end of the air heater 121 through the air volume regulator 122, and is used to guide the air flow to flow to the pole roll 200. The air outlet nozzle 124 is connected to the air heater 121 through the drainage pipe 123. The filter 125 is connected to the inlet or outlet of the air heater 121 to filter the airflow to the air heater 121 or the airflow out of the air heater 121 to ensure the cleanliness of the airflow to the pole roll 200. The air pump is connected to the filter 125 to provide power for the flow of air.

[0042] Preferably, a resistance wire is provided in the heating chamber, and the resistance wire can be electrically connected to a power source to generate heat to heat the airflow.

[0043] Preferably, the air volume regulator 122 is a flow regulating valve, which may be electric or manual.

[0044] Preferably, the drainage pipe 123 is a bendable pipe made of rubber, plastic or metal. Compared with a non-bendable pipe, the drainage pipe 123 can be bent and stretched to adjust the position of the air outlet nozzle 124 so that the hot air is directed to the side of the pole roll 200, which is more flexible and reduces the installation and maintenance costs.

[0045] Preferably, the filter 125 is an air filter 125, which can remove impurities such as dust in the air.

[0046] Preferably, there are two air heaters 121, air volume regulators 122, drainage pipes 123 and air outlet nozzles 124, and there is one filter 125 and air pump. The two air heaters 121 are respectively connected to the same filter 125. The two air volume regulators 122 are connected to the two air heaters 121 in a one-to-one correspondence. The two drainage pipes 123 are connected to the two air heaters 121 in a one-to-one correspondence. By providing two sets of blowing assemblies, hot air can be synchronously blown to the opposite sides of the pole roll 200, thereby improving production efficiency. It should be noted that the heating assembly 120 can be arranged above or below the first tension adjustment mechanism 130, and accordingly, the two air outlet nozzles 124 are located above or below the opposite sides of the pole roll 200.

[0047] Specifically, in the exemplary embodiment, the first tension adjustment mechanism 130 further includes a driving motor, a swing rod, a third reversing roller 132 and a cooling roller 133. The axis of the swing rod is tilted, and the lower end is fixedly connected to the output shaft of the driving motor. The swing roller 131 is rotatably mounted on the higher end of the swing rod. The swing roller 131 is driven by the driving motor to swing to adjust the tension of the pole roll 200. The third reversing roller 132 is rotatably arranged below one side of the swing roller 131, and the cooling roller 133 is rotatably arranged below the other side of the swing roller 131. Before the pole roll 200 passes through the swing roller 131, it first passes through the third reversing roller 132 to change the traveling direction of the pole roll 200. The side wall of the cooling roller 133 is used to receive the shaped pole roll 200 and cool the shaped pole roll 200.

[0048] It should be noted that a cooling cavity is formed inside the cooling roller 133, and a cooling medium can be input into the cooling cavity to cool the pole roll 200. Of course, the pole roll 200 can also be cooled by directly blowing cold air to the pole roll 200.

[0049] Specifically, in the exemplary embodiment, the rolling mechanism 110 includes a first reversing roller 112, a second reversing roller 113 and two or more pressing rollers 111. The two or more pressing rollers 111 are arranged in parallel with each other, and a rolling gap is formed between the side walls for the pole roll 200 to pass through. The first reversing roller 112 is rotatably arranged on a common side of the two pressing rollers 111, and can change the traveling direction of the pole roll 200. The second reversing roller 113 is rotatably arranged on the other common side of the two pressing rollers 111, and can change the traveling direction of the pole roll 200.

[0050] Specifically, in the exemplary embodiment, the pole roll pressing device further includes a second tension adjusting mechanism 140, a third tension adjusting mechanism 150, a fourth tension adjusting mechanism 160, a first tension breaking mechanism 170, a second tension breaking mechanism 180, an unwinding mechanism 191, and a rewinding mechanism 192. The second tension adjusting mechanism 140 is disposed upstream of the rolling mechanism 110, and is used to adjust the tension of the pole roll 200 before rolling. The third tension adjusting mechanism 150 is disposed upstream of the second tension adjusting mechanism 140, and is used to adjust the tension of the pole roll 200 released from the unwinding mechanism 190. The fourth tension adjusting mechanism 160 is disposed downstream of the first tension adjusting mechanism 130, and is used to adjust the tension of the pole roll 200 before rewinding. The first tension breaking mechanism 170 is disposed between the second tension adjusting mechanism 140 and the third tension adjusting mechanism 150, and is used to break the tension. The second tension breaking mechanism 180 is disposed between the first tension adjusting mechanism 130 and the fourth tension adjusting mechanism 160, and is used to break the tension. The unwinding mechanism is disposed upstream of the second tension adjusting mechanism 140 and is used to release the pole roll 200. The rewinding mechanism is disposed downstream of the fourth tension adjusting mechanism 160 and is used to rewind the pole roll 200.

[0051] It should be noted that the specific structures and working principles of the second tension adjustment mechanism 140, the third tension adjustment mechanism 150, the fourth tension adjustment mechanism 160, the first tension isolation mechanism 170, the second tension isolation mechanism 180, the unwinding mechanism 191, and the winding mechanism 192 are existing technologies and will not be repeated here.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A pole roll pressing device, characterized in that: include: Rolling mechanism, used for rolling pole coils; A heating assembly, disposed downstream of the rolling mechanism, for blowing hot air toward two opposite sides of the pole roll after rolling, so as to heat the two opposite sides of the pole roll after rolling; The first tension adjustment mechanism is arranged downstream of the rolling mechanism, and includes a swinging roller; the side wall of the swinging roller is used to receive the heated pole coil and can swing to adjust the tension of the pole coil; the opposite ends of the swinging roller are respectively equipped with shaping parts; when the swinging roller acts on the heated pole coil, the shaping parts at the two ends shape the opposite side edges of the heated pole coil.

2. The pole roll pressing equipment according to claim 1, characterized in that: The heating assembly comprises: The air heater has a heating chamber formed inside; the airflow is heated by the heating chamber and then flows toward the pole roll.

3. The pole roll pressing equipment according to claim 2, characterized in that: The heating assembly also includes: An air volume regulator is connected to the air heater and is used to adjust the air volume flowing into the air heater or to adjust the air volume flowing out of the air heater.

4. The pole roll pressing equipment according to claim 2, characterized in that: The heating assembly also includes: a drainage pipe, connected to the air heater, for guiding the airflow to flow toward the pole roll; An air outlet nozzle is connected to the air heater through the drainage pipe.

5. The pole roll pressing equipment according to claim 4, characterized in that: The drainage tube is a bendable pipeline.

6. The pole roll pressing equipment according to claim 2, characterized in that: The heating assembly also includes: The filter is connected to the air heater and is used for filtering the air flow to the air heater or filtering the air flow out of the air heater.

7. The pole roll pressing equipment according to any one of claims 1 to 6, characterized in that: The first tension adjustment mechanism also includes: The cooling roller has a side wall for receiving the shaped pole coil and cooling the shaped pole coil.

8. The pole roll pressing equipment according to any one of claims 1 to 6, characterized in that: The rolling mechanism comprises: There are two or more pressing rollers, which are arranged in parallel, and a roller pressing gap is formed between the side walls.

9. The pole roll pressing equipment according to any one of claims 1 to 6, characterized in that: Also includes: a second tension adjustment mechanism, disposed upstream of the rolling mechanism, for adjusting the tension of the pole roll before rolling; a third tension adjustment mechanism, disposed upstream of the second tension adjustment mechanism, for adjusting the tension of the pole roll released from the unwinding mechanism; a fourth tension adjustment mechanism, disposed downstream of the first tension adjustment mechanism, for adjusting the tension of the pole roll before winding; A first tension isolation mechanism, disposed between the second tension adjustment mechanism and the third tension adjustment mechanism, for isolating tension; The second tension isolating mechanism is arranged between the first tension adjusting mechanism and the fourth tension adjusting mechanism, and is used for isolating the tension.

10. The pole roll pressing equipment according to claim 9, characterized in that: Also includes: an unwinding mechanism, arranged upstream of the second tension adjusting mechanism, for releasing the pole roll; The winding mechanism is arranged downstream of the fourth tension adjusting mechanism and is used for winding the pole roll.

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