Adsorption cylinder structure and diaphragm unwinding mechanism

Abstract

This utility model discloses an adsorption cylinder structure and a separator unwinding mechanism, relating to the field of battery manufacturing technology. The adsorption cylinder structure includes a mounting base, an adsorption cylinder body, and a driving assembly. The adsorption cylinder body includes a base and a roller. The base is disposed on the mounting base and has a negative pressure channel for communicating with a negative pressure device. The roller is movably sleeved on the base, and its sidewall has multiple adsorption holes communicating with the negative pressure channel for adsorbing the separator. The driving assembly is disposed on the mounting base, and its output end is connected to the roller. The driving assembly drives the roller to rotate around the base, thereby causing the separator to rotate along the surface of the roller. The technical solution provided by this utility model aims to solve the problem of separators easily wrinkling during transportation.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to an adsorption cylinder structure and a diaphragm unwinding mechanism. Background Technology

[0002] In the battery manufacturing process, the stacking machine separates the positive and negative electrode sheets using a separator to ensure the normal operation of the battery. During separator transport, existing separator unwinding mechanisms typically employ a single drive unit to transport the separator and a receiving unit to receive it, thus meeting the requirements for short-distance separator transport.

[0003] However, during long-distance transport of the separator, since the separator is controlled by only a single drive and receiving device and lacks active guidance for the middle section, the tension in the middle section of the separator is prone to fluctuation, which can lead to the loosening or stretching deformation of the separator. This makes the middle section of the separator prone to wrinkles or breakage, affecting the flatness of the separator and thus affecting the performance of the battery. Utility Model Content

[0004] The main purpose of this invention is to propose an adsorption cylinder structure and a diaphragm unwinding mechanism to solve the problem of diaphragms easily wrinkling during transportation.

[0005] To achieve the above objectives, this utility model proposes an adsorption cylinder structure, which includes:

[0006] Mounting base;

[0007] An adsorption cylinder body includes a base and a roller. The base is disposed on the mounting seat and has a negative pressure channel inside, which communicates with a negative pressure device. The roller is movably sleeved on the base, and its side wall has multiple adsorption holes communicating with the negative pressure channel. These adsorption holes are used to adsorb the diaphragm.

[0008] A drive assembly is disposed on the mounting base, and the output end of the drive assembly is connected to the roller;

[0009] The drive assembly drives the roller to rotate around the base, thereby causing the diaphragm to rotate along the surface of the roller.

[0010] In one embodiment, the base is provided with a mounting part for dividing the outer peripheral surface of the base into a channel surface and a contact surface. The roller is movably sleeved on the base and movably abuts against the mounting part and the contact surface. A gap is provided between the roller and the channel surface to form a third flow channel. The third flow channel connects the negative pressure channel and the adsorption hole.

[0011] In one embodiment, the adsorption cylinder body further includes two rotating members rotatably disposed at both ends of the base, the roller is movably sleeved on the outside of the base and connected to the opposite side of the two rotating members respectively, and the driving assembly is connected to the side of one of the rotating members away from the roller.

[0012] The drive assembly drives the rotating component and the roller to rotate along the axial direction of the base.

[0013] In one embodiment, the base includes:

[0014] A fixed shaft is disposed on the mounting base, and a first flow channel communicating with the negative pressure device is formed within the fixed shaft. A mounting portion is disposed on the outer wall of the fixed shaft to divide the outer circumferential surface of the fixed shaft into a channel surface and a contact surface. Two rotating members are disposed at both ends of the fixed shaft.

[0015] A sealing plate is sleeved on the outer wall of the fixed shaft, and a second flow channel communicating with the first flow channel is formed between the sealing plate and the fixed shaft. The first flow channel and the second flow channel together form the negative pressure channel. The roller is rotatably disposed on the outside of the sealing plate and the fixed shaft through two rotating parts, and a gap is provided between it and the channel surface to form the third flow channel.

[0016] The fixed shaft has a guide hole that connects the first flow channel and the second flow channel, and the sealing plate has multiple vent holes that connect the second flow channel and the third flow channel. The guide hole and the vent holes are offset from each other.

[0017] In one embodiment, two mounting portions are provided, both of which extend along the axial direction of the fixed shaft. The sealing plate includes a base and two connecting members disposed on opposite sides of the base. The two connecting members are respectively connected to the two mounting portions so that the base is spaced from the outer wall of the fixed shaft and forms the second flow channel.

[0018] In one embodiment, sealing gaskets are provided between the two ends of the fixed shaft and the roller along the radial direction of the fixed shaft to ensure the airtightness of the two ends of the third flow channel.

[0019] In one embodiment, a plurality of the ventilation holes are symmetrically arranged on both sides of the sealing plate.

[0020] In one embodiment, each of the vent holes extends along the circumferential direction of the sealing plate;

[0021] And / or, the distance between two adjacent vents is the same.

[0022] In one embodiment, the opening area of ​​the adsorption pore is smaller than the opening area of ​​the vent hole;

[0023] And / or, the opening area of ​​the adsorption hole is smaller than the opening area of ​​the guide hole.

[0024] This utility model also proposes a diaphragm unwinding mechanism, which includes:

[0025] Organism;

[0026] An unwinding structure, located on the machine body, is used to unwind the diaphragm;

[0027] A winding structure, disposed on the machine body, is used to receive the diaphragm; and

[0028] The aforementioned adsorption cylinder structure is disposed on the machine body and located between the unwinding structure and the winding structure, and is used for active traction diaphragm transport.

[0029] The adsorption cylinder structure of this utility model is connected to the negative pressure channel of the base through the adsorption holes on the side wall of the roller. The negative pressure device adsorbs the diaphragm, so that the diaphragm is tightly attached to the surface of the roller. At the same time, the drive component drives the roller to rotate around the base, thereby realizing the active traction of the middle part of the diaphragm, ensuring the stability of the tension on the middle part of the diaphragm, and avoiding wrinkles in the diaphragm during transportation. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 A schematic diagram of an embodiment of the adsorption cylinder structure provided by this utility model;

[0032] Figure 2 for Figure 1 A cross-sectional view of the structure of the adsorption cylinder;

[0033] Figure 3 for Figure 1 Schematic diagram of the central base;

[0034] Figure 4 for Figure 1 Schematic diagram of the middle sealing plate;

[0035] Figure 5 for Figure 1Schematic diagram of the middle roller;

[0036] Figure 6 A schematic diagram of an embodiment of the diaphragm unwinding mechanism provided by this utility model.

[0037] Explanation of icon numbers:

[0038] 100. Adsorption cylinder structure; 1. Mounting base; 2. Adsorption cylinder body; 21. Base; 211. Fixed shaft; 2111. First flow channel; 2112. Mounting part; 2113. Guide hole; 2114. Arc-shaped hole wall; 212. Sealing plate; 2121. Second flow channel; 2122. Base; 2123. Connecting part; 2124. Vent hole; 2125. Shielding part; 2126. Vent part; 22. Roller; 221. Adsorption hole; 2211. Third flow channel; 222. Rotating part; 223. Sealing gasket; 23. Negative pressure channel; 3. Drive assembly; 200. Diaphragm unwinding mechanism; 201. Machine body; 202. Unwinding structure; 203. Rewinding structure.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] In the battery manufacturing process, the stacking machine separates the positive and negative electrode sheets using a separator to ensure the normal operation of the battery. During separator transport, existing separator unwinding mechanisms typically employ a single drive unit to transport the separator and a receiving unit to receive it, thus meeting the requirements for short-distance separator transport.

[0044] However, during long-distance transport of the separator, since the separator is controlled by only a single drive and receiving device and lacks active guidance for the middle section, the tension in the middle section of the separator is prone to fluctuation, which can lead to the loosening or stretching deformation of the separator. This makes the middle section of the separator prone to wrinkles or breakage, affecting the flatness of the separator and thus affecting the performance of the battery.

[0045] The main purpose of this invention is to propose an adsorption cylinder structure 100 and a diaphragm unwinding mechanism 200, which aims to solve the problem that the diaphragm is prone to wrinkling during transportation.

[0046] Please see Figures 1 to 6 In one embodiment of this utility model, the adsorption cylinder structure 100 includes a mounting base 1, an adsorption cylinder body 2, and a driving assembly 3. The adsorption cylinder body 2 includes a base 21 and a roller 22. The base 21 is disposed on the mounting base 1, and a negative pressure channel 23 is provided inside the base 21 for communicating with a negative pressure device. The roller 22 is movably sleeved on the base 21, and the side wall of the roller 22 is provided with a plurality of adsorption holes 221 communicating with the negative pressure channel 23 for adsorbing the diaphragm. The driving assembly 3 is disposed on the mounting base 1, and the output end of the driving assembly 3 is connected to the roller 22. The driving assembly 3 drives the roller 22 to rotate around the base 21, thereby causing the diaphragm to rotate along the surface of the roller 22.

[0047] The adsorption cylinder structure 100 of this utility model is connected to the negative pressure channel 23 of the base 21 through the adsorption hole 221 on the side wall of the roller 22. The negative pressure device adsorbs the diaphragm, so that the diaphragm is tightly attached to the surface of the roller 22. At the same time, the driving component 3 drives the roller 22 to rotate around the base 21, thereby realizing the active traction of the middle part of the diaphragm, ensuring the stability of the tension on the middle part of the diaphragm, and avoiding wrinkles in the diaphragm during transportation.

[0048] Please see Figure 2 , Figure 3 and Figure 5 In one embodiment, the base 21 is provided with a mounting part 2112 for dividing the outer peripheral surface of the base 21 into a channel surface and a contact surface. The roller 22 is movably sleeved on the base 21 and movably abuts against the mounting part 2112 and the contact surface. A gap is provided between the roller 22 and the channel surface to form a third flow channel 2211. The third flow channel 2211 connects the negative pressure channel 23 and the adsorption hole 221.

[0049] In this embodiment, the mounting portion 2112 on the base 21 divides the outer peripheral surface into two areas: a channel surface and a contact surface. The roller 22 is movably sleeved on the base 21, and movably abuts against the mounting portion 2112 and the contact surface, so that the roller 22 can maintain stable sealing performance when rotating. At the same time, a gap is formed between the roller 22 and the channel surface, constituting a third flow channel 2211. The third flow channel 2211 is used to connect the negative pressure channel 23 and the adsorption hole 221, ensuring that the negative pressure can be stably transmitted to the adsorption hole 221 on the surface of the roller 22, thereby achieving adsorption of the diaphragm.

[0050] Please see Figure 1 and Figure 2 In one embodiment, the adsorption cylinder body 2 further includes two rotating members 222 rotatably disposed at both ends of the base 21. The roller 22 is movably sleeved on the outside of the base 21 and connected to the opposite side of the two rotating members 222 respectively. The drive assembly 3 is connected to the side of one of the rotating members 222 away from the roller 22. The drive assembly 3 drives the rotating member 222 and the roller 22 to rotate along the axial direction of the base 21.

[0051] In this embodiment, the two rotating members 222 at both ends of the base 21 serve as rotational support points for the roller 22, enabling the roller 22 to rotate along the axial direction of the base 21. It is understood that the drive assembly 3 includes a drive member and a transmission member disposed on the mounting base 1. The drive member can be a power device such as a motor or cylinder. The transmission member connects the output end of the drive member to the roller 22, transmitting the power of the drive member to the roller 22 to cause the roller 22 to rotate. The transmission member can use gear transmission or belt transmission; the specific structure of the transmission member is not limited here.

[0052] Understandably, the transmission of the transmission components causes the output end of the drive component to be misaligned with the fixed shaft 211, thus avoiding interference between the two.

[0053] In the prior art, the two ends of the negative pressure channel 23 are directly connected to the negative pressure device and the adsorption hole 221, respectively, to enhance the adsorption force. The adsorption hole 221, which is closer to the negative pressure device, provides a stronger adsorption force, enabling stable adsorption and fixation of the separator. However, the adsorption force of the adsorption hole 221, which is farther from the negative pressure device, is relatively weak, resulting in poor adsorption of the separator at these locations. This leads to uneven stress on the separator during transport, making it prone to wrinkles, thus affecting the stacking accuracy of the cells and the quality of the battery.

[0054] To resolve the above issues, please refer to Figure 2 and Figure 3 In one embodiment, the base 21 includes a fixed shaft 211 and a sealing plate 212. The fixed shaft 211 is disposed on the mounting base 1, and a first flow channel 2111 communicating with the negative pressure device is formed inside the fixed shaft 211. The mounting part 2112 is disposed on the outer wall of the fixed shaft 211 to divide the outer peripheral surface of the fixed shaft 211 into a channel surface and a contact surface. Two rotating members 222 are disposed at both ends of the fixed shaft 211. The sealing plate 212 is sleeved on the outer wall of the fixed shaft 211, and a second flow channel 2121 communicating with the first flow channel 2111 is formed between the sealing plate 212 and the fixed shaft 211. The first flow channel 2111 and the second flow channel 2121 together form a negative pressure channel 23. The roller 22 is rotatably disposed outside the sealing plate 212 and the fixed shaft 211 by the two rotating members 222, and a gap is provided between it and the channel surface to form a third flow channel 2211. The fixed shaft 211 has a guide hole 2113 that connects the first flow channel 2111 and the second flow channel 2121, and the sealing plate 212 has multiple vent holes 2124 that connect the second flow channel 2121 and the third flow channel 2211. The guide hole 2113 and the vent holes 2124 are misaligned.

[0055] In this embodiment, the fixed shaft 211 is mounted on the mounting base 1. A first flow channel 2111 is provided inside the fixed shaft 2111, which is connected to the negative pressure device. The mounting part 2112 and the rotating component 222 are both mounted on the fixed shaft 211. The mounting part 2112 not only divides the outer circumferential surface of the fixed shaft 211 into a channel surface and a contact surface, but also provides positioning and support for the installation of the sealing plate 212 and the roller 22. The rotating component 222 is used for the rotation of the roller 22. The sealing plate 212 is sleeved on the outer wall of the fixed shaft 211, forming a second flow channel 2121 between it and the fixed shaft 211. The second flow channel 2121 is connected to the first flow channel 2111 inside the fixed shaft 211 through the guide hole 2113 on the fixed shaft 211, together forming a negative pressure channel 23. The second flow channel 2121 is connected to the third flow channel 2211 through multiple vent holes 2124 on the sealing plate 212. The guide hole 2113 and the vent hole 2124 are misaligned.

[0056] Understandably, during the adsorption process, the negative pressure device generates negative pressure through the first flow channel 2111. The airflow sequentially passes through the guide hole 2113, the second flow channel 2121, the vent hole 2124, and the third flow channel 2211, finally reaching the adsorption holes 221 on the surface of the roller 22. Under the action of negative pressure, the adsorption holes 221 adsorb the separator, making the separator tightly adhere to the surface of the roller 22. The staggered arrangement of the guide hole 2113 and the vent hole 2124 ensures that the airflow is first evenly distributed in the second flow channel 2121 before entering the third flow channel 2211, so as to generate the same adsorption force at each adsorption hole 221. This improves the stability of separator adsorption, avoids wrinkling, and thus ensures the stacking accuracy of the cells and improves battery quality.

[0057] Please see Figure 2 and Figure 3 In one embodiment, the sealing plate 212 includes a blocking part 2125 corresponding to the guide hole 2113 and a venting part 2126 connected to the blocking part 2125. The venting part 2126 is provided with a plurality of venting holes 2124. The blocking part 2125 is corresponding to the guide hole 2113 and is used to block the airflow from directly entering the guide hole 2113.

[0058] In this embodiment, the blocking portion 2125 of the sealing plate 212 corresponds to the guide hole 2113 on the fixed shaft 211, and is used to block the airflow from passing directly through the guide hole 2113, so as to prevent the airflow from flowing directly to the adsorption hole 221 without proper distribution, thereby causing uneven adsorption force. At the same time, the ventilation portion 2126 connected to the blocking portion 2125 is provided with multiple ventilation holes 2124. The ventilation holes 2124 are used to connect the second flow channel 2121 and the third flow channel 2211, so that after being blocked by the blocking portion 2125, the negative pressure can be evenly distributed and enter the ventilation holes 2124.

[0059] Please see Figure 2 and Figure 3 In one embodiment, the guide hole 2113 is located at the middle position of the fixed shaft 211, and the blocking part 2125 is located at the middle position of the sealing plate 212. Two venting parts 2126 are provided, located on both sides of the blocking part 2125.

[0060] In this embodiment, when the vent 2126 is located on both sides of the shield 2125, the airflow can be symmetrically distributed, so that the airflow passes evenly through each vent 2124.

[0061] In another embodiment, the vent 2126 is arranged around the periphery of the shield 2125. This makes the vents 2124 circumferentially distributed, which also ensures that the airflow passes evenly through each vent 2124.

[0062] Please see Figure 2 and Figure 4 In one embodiment, two mounting portions 2112 are provided, and both mounting portions 2112 extend along the axial direction of the fixed shaft 211. The sealing plate 212 includes a base 2122 and two connecting members 2123 provided on opposite sides of the base 2122. The two connecting members 2123 are respectively connected to the two mounting portions 2112 so that the base 2122 is spaced from the outer wall of the fixed shaft 211 and forms a second flow channel 2121.

[0063] In this embodiment, the mounting portions 2112 on both sides of the fixed shaft 211 cooperate with the connecting parts 2123 of the sealing plate 212. This not only fixes the sealing plate 212, but also abuts against both sides of the roller 22 to form a third flow channel 2211, thereby ensuring the sealing of the third flow channel 2211 and generating a sufficiently large negative pressure in the third flow channel 2211 to adsorb the diaphragm.

[0064] Understandably, the mounting part 2112 and the connector 2123 can be connected by fasteners such as bolts or screws, which facilitates the installation and disassembly of the sealing plate 212 and is beneficial for equipment maintenance and repair.

[0065] Please see Figure 2 In one embodiment, sealing gaskets 223 are provided between the two ends of the fixed shaft 211 and the roller 22 along the radial direction of the fixed shaft 211 to ensure the airtightness of the two ends of the negative pressure channel 23.

[0066] In this embodiment, when the negative pressure device is activated, negative pressure is generated in the third flow channel 2211. The sealing gasket 223 can effectively prevent external air from entering the third flow channel 2211 from the gap between the fixed shaft 211 and the roller 22, thereby ensuring the stability of the negative pressure and improving the adsorption effect.

[0067] It is understandable that the sealing gasket 223 can be made of wear-resistant and corrosion-resistant rubber or plastic materials to adapt to different working environments and requirements, thereby further improving the reliability and service life of the adsorption cylinder.

[0068] Please see Figure 3 and Figure 4 In one embodiment, a plurality of vent holes 2124 are symmetrically arranged on both sides of the sealing plate 212.

[0069] In this embodiment, the vents 2124 are symmetrically arranged on both sides of the shielding portion 2125. The symmetrical arrangement of the vents 2124 ensures that the airflow experiences balanced resistance when passing through the sealing plate 212, and can evenly transmit negative pressure to all positions of the third flow channel 2211, avoiding localized concentration of negative pressure.

[0070] Understandably, the symmetrical arrangement also makes the whole structure more aesthetically pleasing and compact, which is beneficial to the overall design and layout of the equipment.

[0071] Please see Figure 3 and Figure 4 In one embodiment, each vent 2124 extends along the circumferential direction of the sealing plate 212.

[0072] In this embodiment, the vents 2124 extend circumferentially along the substrate 2122, allowing the airflow to be evenly distributed circumferentially across the substrate 2122. This ensures that the negative pressure generated from each vent 2124 enters the third flow channel 2211 evenly and is further transmitted to the adsorption holes 221, achieving uniform adsorption at various locations on the surface of the roller 22. It is understood that the circumferentially extending vents 2124 improve the flow stability of the airflow, reduce airflow resistance and eddy currents during flow, improve adsorption efficiency and quality, and also facilitate processing and production.

[0073] Please see Figure 3 and Figure 4 In one embodiment, the distance between two adjacent vents 2124 is the same.

[0074] In this embodiment, the multiple vent holes 2124 of each vent section 2126 are equally spaced, so that the negative pressure can be evenly distributed into the third flow channel 2211 when passing through the vent holes 2124. The equally spaced vent hole 2124 layout ensures that the flow rate and velocity of the airflow are relatively balanced at each position, avoiding uneven airflow distribution caused by uneven spacing of the vent holes 2124.

[0075] Please see Figure 3 and Figure 4In one embodiment, the opening area of ​​the vent 2124 near the shielding part 2125 is smaller than the opening area away from the shielding part 2125.

[0076] In this embodiment, the vent 2124 near the shielding part 2125 has a smaller opening area, while the vent 2124 far from the shielding part 2125 has a larger opening area. Because the vent 2124 near the shielding part 2125 is closer to the guide hole 2113, the airflow pressure is relatively higher, and the smaller opening area can appropriately limit the airflow and prevent excessive airflow concentration. Meanwhile, because the vent 2124 far from the shielding part 2125 is farther from the guide hole 2113, the airflow pressure is relatively lower, and the larger opening area ensures sufficient airflow.

[0077] Understandably, the differentiated setting of the opening area of ​​the vent 2124 helps to optimize the airflow distribution of the entire vent 2124, making the negative pressure in the third flow channel 2211 more uniform, thereby improving the adsorption efficiency and adsorption quality.

[0078] Please see Figure 3 and Figure 4 The opening area of ​​each adsorption hole 221 is smaller than the opening area of ​​each vent hole 2124.

[0079] In this embodiment, the opening area of ​​the adsorption hole 221 is smaller than the opening area of ​​the vent hole 2124. This increases the adsorption force at the adsorption hole 221, allowing the diaphragm to adhere more tightly to the surface of the roller 22. Simultaneously, the smaller opening area of ​​the adsorption hole 221 also helps reduce air leakage during adsorption, thereby improving the efficiency of the negative pressure and reducing energy consumption.

[0080] Please see Figure 3 and Figure 4 The opening area of ​​each adsorption hole 221 is smaller than the opening area of ​​the guide hole 2113.

[0081] In this embodiment, only one guide hole 2113 is provided. The airflow drawn in by multiple adsorption holes 221 will converge together and flow into the first flow channel 2111 from the guide hole 2113. Therefore, the opening area of ​​the guide hole 2113 needs to be much larger than the opening area of ​​the adsorption hole 221 in order to balance the flow rate of the airflow.

[0082] Please see Figure 2 In one embodiment, the cross-sectional area of ​​the guide hole 2113 gradually increases from the flow direction from the first flow channel 2111 to the second flow channel 2121 to form an arc-shaped hole wall 2114, which is used to guide the flow direction of the airflow.

[0083] In this embodiment, the guide hole 2113 is provided with an arc-shaped hole wall 2114 to guide the flow direction of the airflow and reduce turbulence when the airflow enters the guide hole 2113. The arc-shaped hole wall 2114 guides the airflow, allowing it to pass through the guide hole 2113 more smoothly, thus improving the flow efficiency and stability of the airflow.

[0084] Please see Figure 6 This utility model also proposes a diaphragm unwinding mechanism 200, which includes an adsorption cylinder structure 100, a body 201, an unwinding structure 202, and a winding structure 203. The specific structure of the adsorption cylinder structure 100 is as described in the above embodiments. Since this diaphragm unwinding mechanism 200 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0085] The main body 201 serves as the supporting foundation for the diaphragm unwinding mechanism 200. The unwinding structure 202 is located on the main body 201 and is used to unwind the diaphragm. The winding structure 203 is located on the main body 201 and is used to receive the diaphragm. The adsorption cylinder structure 100 is located on the main body 201 and between the unwinding structure 202 and the winding structure 203, and is used for actively traction and transport of the diaphragm.

[0086] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An adsorption cylinder structure, characterized in that, The adsorption cylinder structure includes: Mounting base; An adsorption cylinder body includes a base and a roller. The base is disposed on the mounting seat and has a negative pressure channel inside, which communicates with a negative pressure device. The roller is movably sleeved on the base, and its side wall has multiple adsorption holes communicating with the negative pressure channel. These adsorption holes are used to adsorb the diaphragm. A drive assembly is disposed on the mounting base, and the output end of the drive assembly is connected to the roller; The drive assembly drives the roller to rotate around the base, thereby causing the diaphragm to rotate along the surface of the roller.

2. The adsorption cylinder structure as described in claim 1, characterized in that, The base is provided with a mounting part for dividing the outer peripheral surface of the base into a channel surface and a contact surface. The roller is movably sleeved on the base and movably abuts against the mounting part and the contact surface. A gap is provided between the roller and the channel surface to form a third flow channel. The third flow channel connects the negative pressure channel and the adsorption hole.

3. The adsorption cylinder structure as described in claim 2, characterized in that, The adsorption cylinder body also includes two rotating parts rotatably disposed at both ends of the base. The roller is movably sleeved on the outside of the base and connected to the opposite side of the two rotating parts respectively. The drive assembly is connected to the side of one of the rotating parts away from the roller. The drive assembly drives the rotating component and the roller to rotate along the axial direction of the base.

4. The adsorption cylinder structure as described in claim 3, characterized in that, The base includes: A fixed shaft is disposed on the mounting base, and a first flow channel communicating with the negative pressure device is formed within the fixed shaft. A mounting portion is disposed on the outer wall of the fixed shaft to divide the outer circumferential surface of the fixed shaft into a channel surface and a contact surface. Two rotating members are disposed at both ends of the fixed shaft. A sealing plate is sleeved on the outer wall of the fixed shaft, and a second flow channel communicating with the first flow channel is formed between the sealing plate and the fixed shaft. The first flow channel and the second flow channel together form the negative pressure channel. The roller is rotatably disposed on the outside of the sealing plate and the fixed shaft through two rotating parts, and a gap is provided between it and the channel surface to form the third flow channel. The fixed shaft has a guide hole that connects the first flow channel and the second flow channel, and the sealing plate has multiple vent holes that connect the second flow channel and the third flow channel. The guide hole and the vent holes are offset from each other.

5. The adsorption cylinder structure as described in claim 4, characterized in that, The mounting portion is provided in two parts, both of which extend along the axial direction of the fixed shaft. The sealing plate includes a base and two connecting members disposed on opposite sides of the base. The two connecting members are respectively connected to the two mounting portions, so that the base is spaced from the outer wall of the fixed shaft and forms the second flow channel.

6. The adsorption cylinder structure as described in claim 4, characterized in that, Along the radial direction of the fixed shaft, sealing gaskets are also provided between the two ends of the fixed shaft and the roller to ensure the airtightness of the two ends of the third flow channel.

7. The adsorption cylinder structure as described in claim 4, characterized in that, Multiple ventilation holes are symmetrically arranged on both sides of the sealing plate.

8. The adsorption cylinder structure as described in claim 4, characterized in that, Each of the vent holes extends along the circumferential direction of the sealing plate; And / or, the distance between two adjacent vents is the same.

9. The adsorption cylinder structure as described in claim 4, characterized in that, The opening area of ​​the adsorption pore is smaller than the opening area of ​​the vent hole. And / or, the opening area of ​​the adsorption hole is smaller than the opening area of ​​the guide hole.

10. A diaphragm unwinding mechanism, characterized in that, The diaphragm unwinding mechanism includes: Organism; An unwinding structure, located on the machine body, is used to unwind the diaphragm; A winding structure, disposed on the machine body, is used to receive the diaphragm; and The adsorption cylinder structure as described in any one of claims 1 to 9, wherein the adsorption cylinder structure is disposed in the machine body and located between the unwinding structure and the winding structure, for actively traction diaphragm transport.

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