Pre-pressing device and winding machine

Abstract

The present disclosure relates to the technical field of battery processing apparatuses, and specifically relates to a pre-pressing device and a winding machine. The pre-pressing device comprises a mounting frame; and a pre-pressing assembly, wherein the pre-pressing assembly is arranged on the mounting frame. The pre-pressing assembly comprises a first pressing member, a second pressing member and a pressing drive assembly, wherein the pressing drive assembly is configured to drive at least one of the second pressing member and the first pressing member to move in the direction closer to or away from the other, thus clamping or releasing a part to be pressed between the first pressing member and the second pressing member. At least one of the first pressing member and the second pressing member is a pressure detection sensor, the pressure detection sensor being configured to detect the pressure borne by said part when clamped between the first pressing member and the second pressing member. The pre-pressing device provided in the present disclosure has a simple structure and a small size.

Description

Pre-pressing device and winding machine

[0001] This disclosure claims priority to Chinese patent application number 202420687482.1, filed with the Patent Office of China on April 3, 2024, entitled “Pre-pressing device and winding machine,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the technical field of battery processing equipment, and in particular to a pre-pressing device and a winding machine. Background Art

[0003] After the cylindrical battery cell is wound by a winding machine and formed into a cylindrical battery cell, there is a process of placing the cylindrical battery cell on a pre-pressing device and flattening it by the pre-pressing device. Specifically, the pre-pressing device usually includes an upper pressing plate and a lower pressing plate. When the cylindrical battery cell needs to be flattened, the cylindrical battery cell can first be placed on the lower pressing plate, and then the upper pressing plate is moved in a direction close to the lower pressing plate to clamp the cylindrical battery cell between the upper and lower pressing plates, thereby achieving the purpose of flattening the cylindrical battery cell.

[0004] Considering that there are certain requirements for the pressure that the cylindrical battery cells are subjected to when flattening them, a pressure detection sensor for detecting the pressure borne by the cylindrical battery cells is usually additionally provided on the upper pressure plate. This method will lead to a complex structure of the pre-pressing device on the one hand, and a larger volume of the pre-pressing device on the other hand. Summary of the Invention

[0005] The present disclosure provides a pre-pressing device and a winding machine, which have a simple structure and a small size.

[0006] In order to achieve the above objectives, in a first aspect, the present disclosure provides a pre-pressing device, comprising:

[0007] mounting bracket; and

[0008] A pre-stressing assembly is arranged on the mounting frame, and the pre-stressing assembly includes a first extrusion member, a second extrusion member and an extrusion drive assembly, and the extrusion drive assembly is used to drive at least one of the second extrusion member and the first extrusion member to move in a direction close to or away from the other, so as to clamp or release the part to be extruded between the first extrusion member and the second extrusion member, wherein at least one of the first extrusion member and the second extrusion member is a pressure detection sensor, and the pressure detection sensor is used to detect the pressure on the part to be extruded when it is clamped between the first extrusion member and the second extrusion member.

[0009] When the extruded piece needs to be flattened, first, the extruded piece can be placed between the second extrusion piece and the first extrusion piece. Then, the extrusion drive assembly can be used to drive at least one of the second extrusion piece and the first extrusion piece to move in a direction close to the other, so that the extruded piece is clamped between the first extrusion piece and the second extrusion piece, and the pressure on the extruded piece gradually increases.

[0010] When the piece to be extruded is clamped between the first extrusion piece and the second extrusion piece, since at least one of the first extrusion piece and the second extrusion piece is a pressure detection sensor, the pressure on the piece to be extruded can be detected by the first extrusion piece and / or the second extrusion piece. When the pressure on the extrusion piece meets the preset requirements, the extrusion drive component can stop driving at least one of the second extrusion piece and the first extrusion piece to move in a direction close to the other. At the same time, the extrusion drive component can drive at least one of the second extrusion piece and the first extrusion piece to move in a direction away from the other, so that the piece to be extruded is loosened between the first extrusion piece and the second extrusion piece. At this point, the purpose of flattening the piece to be extruded can be achieved.

[0011] Among them, since at least one of the first extrusion member and the second extrusion member is a pressure detection sensor, the first extrusion member and / or the second extrusion member can not only play the role of extruding the member to be extruded, but also play the role of detecting the pressure borne by the member to be extruded. In this way, the first extrusion member or the second extrusion member can replace the pressure detection sensor in the related technology. Therefore, on the one hand, the number of parts of the pre-pressing device can be reduced and the structure of the pre-pressing device can be simplified. On the other hand, the volume of the pre-pressing device can also be reduced.

[0012] Optionally, the first extrusion member is fixedly arranged on the mounting frame, the second extrusion member is slidably arranged on the mounting frame in a direction approaching or moving away from the first extrusion member, and the extrusion drive assembly is arranged on the mounting frame and connected to the second extrusion member, for driving the second extrusion member to move in a direction approaching or moving away from the first extrusion member, wherein the first extrusion member is a pressure detection sensor and the second extrusion member is a pressure plate.

[0013] Optionally, the second extrusion piece is provided with a blowing hole for blowing air toward the piece to be extruded.

[0014] Optionally, the first extrusion member is located below the second extrusion member in the vertical direction, and the first extrusion member is also used to support the member to be extruded.

[0015] Optionally, the extrusion drive assembly includes:

[0016] an extrusion drive; and

[0017] A screw mechanism is arranged on the mounting frame, the extrusion drive is connected to the screw mechanism, the screw mechanism is connected to the second extrusion member, and the extrusion drive is used to drive the second extrusion member to move in a direction close to or away from the first extrusion member through the screw mechanism.

[0018] Optionally, the screw mechanism includes:

[0019] A transmission nut, the transmission nut being rotatably disposed on the mounting bracket, and the extrusion drive member being used to drive the transmission nut to rotate;

[0020] A screw rod, the screw rod is threadedly connected to the transmission nut and extends along the moving direction of the second extrusion member, the second extrusion member is connected to the screw rod and a stop portion is provided between the second extrusion member and the screw rod, the stop portion is used to prevent the screw rod from rotating around its own axial direction relative to the second extrusion member.

[0021] Optionally, the second extrusion member is floatingly connected to the screw.

[0022] Optionally, a plug-in structure is provided at the end of the screw rod, a limiting cavity is provided on the second extrusion piece, the plug-in structure is plugged into the limiting cavity and there is a gap between the plug-in structure and the cavity wall of the limiting cavity.

[0023] Optionally, the pressure detection sensor is a plate-type pressure detection sensor.

[0024] Optionally, the mounting frame includes:

[0025] a first mounting member;

[0026] a second mounting member, the second mounting member being spaced apart and arranged opposite to the first mounting member along a moving direction of the first extrusion member or the second extrusion member; and

[0027] a connecting member, the connecting member being disposed between the first mounting member and the second mounting member and being connected to the first mounting member and the second mounting member respectively;

[0028] Wherein, the first extrusion member and the second extrusion member are both located between the first mounting member and the second mounting member.

[0029] Optionally, the pre-pressing device further includes:

[0030] A transporting assembly is used to transport the piece to be extruded between the first extrusion piece and the second extrusion piece, and is also used to move the piece to be extruded away after it is released between the first extrusion piece and the second extrusion piece.

[0031] Optionally, the transport assembly includes:

[0032] Transmission drive components;

[0033] A conveyor belt, wherein the conveyor drive is connected to the conveyor belt, and a portion of the structure of the conveyor belt is located between the first extrusion member and the second extrusion member. The conveyor drive is used to drive the conveyor belt to convey the part to be extruded between the first extrusion member and the second extrusion member. The conveyor drive is also used to continue driving the conveyor belt to convey the part to be extruded after it is released between the first extrusion member and the second extrusion member, so as to move the part to be extruded away.

[0034] Optionally, there are multiple pre-pressing assemblies, and the multiple pre-pressing assemblies are arranged in an array at intervals on the mounting frame.

[0035] In a second aspect, the present disclosure provides a winding machine, comprising the pre-pressing device described in any one of the first aspects above.

[0036] Compared with the related art, the present invention has the following advantages:

[0037] In the present disclosure, when the part to be extruded needs to be flattened, first, the part to be extruded can be placed between the second extrusion part and the first extrusion part, and then, the extrusion drive component can be used to drive at least one of the second extrusion part and the first extrusion part to move in a direction close to the other, so that the part to be extruded is clamped between the first extrusion part and the second extrusion part, and the pressure on the part to be extruded gradually increases.

[0038] When the piece to be extruded is clamped between the first extrusion piece and the second extrusion piece, since at least one of the first extrusion piece and the second extrusion piece is a pressure detection sensor, the pressure on the piece to be extruded can be detected by the first extrusion piece and / or the second extrusion piece. When the pressure on the extrusion piece meets the preset requirements, the extrusion drive component can stop driving at least one of the second extrusion piece and the first extrusion piece to move in a direction close to the other. At the same time, the extrusion drive component can drive at least one of the second extrusion piece and the first extrusion piece to move in a direction away from the other, so that the piece to be extruded is loosened between the first extrusion piece and the second extrusion piece. At this point, the purpose of flattening the piece to be extruded can be achieved.

[0039] Among them, since at least one of the first extrusion member and the second extrusion member is a pressure detection sensor, the first extrusion member and / or the second extrusion member can not only play the role of extruding the member to be extruded, but also play the role of detecting the pressure borne by the member to be extruded. In this way, the first extrusion member or the second extrusion member can replace the pressure detection sensor in the related technology. Therefore, on the one hand, the number of parts of the pre-pressing device can be reduced and the structure of the pre-pressing device can be simplified. On the other hand, the volume of the pre-pressing device can also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] FIG1 is a schematic structural diagram of a pre-pressing device provided in an embodiment of the present disclosure;

[0042] FIG2 is a schematic structural diagram of the second extrusion member in FIG1 ;

[0043] FIG3 is a schematic structural diagram of another pre-pressing device provided in an embodiment of the present disclosure;

[0044] FIG4 is a schematic diagram of a partial structure of the pre-pressing device in FIG3 ;

[0045] FIG5 is a partial cross-sectional view of the pre-pressing device in FIG4 at position AA;

[0046] FIG6 is a schematic structural diagram of another pre-pressing device provided in an embodiment of the present disclosure;

[0047] FIG7 is a schematic structural diagram of a winding machine provided in an embodiment of the present disclosure.

[0048] Explanation of main reference numerals: 1-mounting frame; 11-first mounting member; 12-second mounting member; 13-connecting member; 2-pre-stressing assembly; 21-first extrusion member; 22-second extrusion member; 221-limiting cavity; 222-blowing hole; 23-extrusion drive assembly; 231-extrusion drive member; 232-screw mechanism; 2321-transmission nut; 2322-screw; 23221-stop part; 23222-plug-in structure; 23222a-spherical surface; 2323-rotating shaft; 2324-bearing; 233-synchronous pulley structure; 24-slide rail assembly; 3-handling assembly; 31-transmission drive member; 32-conveyor belt; 100-pre-stressing device; 200-winding machine; A-parts to be extruded. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0050] In this disclosure, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this disclosure and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0051] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to express a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0052] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0053] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0054] The technical solution of the present disclosure will be further described below with reference to specific embodiments and drawings.

[0055] The present disclosure provides a prestressing device 100, see Figure 1, the prestressing device 100 includes a mounting frame 1 and a prestressing assembly 2, wherein the prestressing assembly 2 is arranged on the mounting frame 1, and the prestressing assembly 2 includes a first extrusion member 21, a second extrusion member 22 and an extrusion drive assembly 23, the extrusion drive assembly 23 is used to drive at least one of the second extrusion member 22 and the first extrusion member 21 to move in a direction close to or away from the other, so as to clamp or release the part to be extruded A between the first extrusion member 21 and the second extrusion member 22, wherein at least one of the first extrusion member 21 and the second extrusion member 22 is a pressure detection sensor, and the pressure detection sensor is used to detect the pressure exerted on the part to be extruded A when it is clamped between the first extrusion member 21 and the second extrusion member 22.

[0056] In this embodiment, when the part A to be extruded needs to be flattened, first, the part A to be extruded can be placed between the second extrusion part 22 and the first extrusion part 21. Then, the extrusion drive component 23 can be used to drive at least one of the second extrusion part 22 and the first extrusion part 21 to move in a direction close to the other, so that the part A to be extruded is clamped between the first extrusion part 21 and the second extrusion part 22, and the pressure on the part A to be extruded gradually increases.

[0057] When the piece A to be extruded is clamped between the first extrusion piece 21 and the second extrusion piece 22, since at least one of the first extrusion piece 21 and the second extrusion piece 22 is a pressure detection sensor, the pressure on the piece A to be extruded can be detected by the first extrusion piece 21 and / or the second extrusion piece 22. When the pressure on the extrusion piece A meets the preset requirements, the extrusion drive component 23 can stop driving at least one of the second extrusion piece 22 and the first extrusion piece 21 to move in a direction close to the other. At the same time, the extrusion drive component 23 can drive at least one of the second extrusion piece 22 and the first extrusion piece 21 to move in a direction away from the other, so that the piece A to be extruded is released between the first extrusion piece 21 and the second extrusion piece 22. At this point, the purpose of flattening the piece A to be extruded can be achieved.

[0058] Among them, since at least one of the first extrusion member 21 and the second extrusion member 22 is a pressure detection sensor, the first extrusion member 21 and / or the second extrusion member 22 can not only play the role of extruding the part to be extruded A, but also play the role of detecting the pressure exerted on the part to be extruded A. In this way, the first extrusion member 21 or the second extrusion member 22 can replace the pressure detection sensor in the related technology. Therefore, on the one hand, the number of components of the pre-pressing device 100 can be reduced and the structure of the pre-pressing device 100 can be simplified. On the other hand, the volume of the pre-pressing device 100 can also be reduced.

[0059] The part A to be extruded may be a cylindrical battery cell or other possible components, which is not limited in this embodiment.

[0060] In some embodiments, referring to FIG1 , a first extrusion member 21 is fixedly mounted on a mounting frame 1, a second extrusion member 22 is slidably mounted on the mounting frame 1 in a direction approaching or moving away from the first extrusion member 21, an extrusion drive assembly 23 is mounted on the mounting frame 1 and connected to the second extrusion member 22, and is used to drive the second extrusion member 22 to move in a direction approaching or moving away from the first extrusion member 21, wherein the first extrusion member 21 is a pressure detection sensor, and the second extrusion member 22 is a pressure plate.

[0061] Since the first extrusion member 21 is fixedly arranged on the mounting frame 1 and the second extrusion member 22 is slidably arranged on the mounting frame 1 in a direction approaching or moving away from the first extrusion member 21, and since the first extrusion member 21 is a pressure detection sensor and the second extrusion member 22 is a pressure plate, the pressure detection sensor will be fixedly arranged on the mounting frame 1 and the pressure plate will be slidably arranged on the mounting frame 1 in a direction approaching or moving away from the first extrusion member 21. In this way, the pressure detection sensor can be prevented from moving in a direction approaching or moving away from the pressure plate on the basis of being able to clamp or release the extruded member A between the first extrusion member 21 and the second extrusion member 22, thereby avoiding or reducing the possibility of damage to the pressure detection sensor during movement, making the pre-pressing device 100 more durable and more reliable.

[0062] When the second extrusion member 22 is a pressure plate, only the first extrusion member 21 among the first extrusion member 21 and the second extrusion member 22 can be a pressure detection sensor. Compared with the method in which both the first extrusion member 21 and the second extrusion member 22 are pressure detection sensors, the cost of the pre-pressing device 100 can be further reduced on the basis of being able to detect the pressure to be borne by the extruded member A.

[0063] As shown in FIG1 , the pressure sensor may be a plate-type pressure sensor. When the pressure sensor is a plate-type pressure sensor, its shape is more conducive to cooperating with the second extrusion member 22 to compress the part A to be extruded. Of course, the pressure sensor may also be other possible sensors, as long as it can cooperate with the second extrusion member 22 to compress the part A to be extruded and detect the pressure exerted on the part A to be extruded. This embodiment does not limit the pressure sensor.

[0064] It should be noted that, referring to Figure 1, the above-mentioned second extrusion member 22 can be slidably set on the mounting frame 1 along the direction close to or away from the first extrusion member 21 through the slide rail assembly 24, and can also be slidably set on the mounting frame 1 along the direction close to or away from the first extrusion member 21 through other methods. This embodiment does not limit this.

[0065] Considering that after the part A to be extruded is released between the first extrusion part 21 and the second extrusion part 22, the part A to be extruded may stick to the second extrusion part 22, in some embodiments, referring to Figures 1 and 2, the second extrusion part 22 is provided with a blowing hole 222 for blowing air toward the part A to be extruded.

[0066] By providing the blowing holes 222 , air can be blown toward the part A to be extruded through the blowing holes 222 , thereby preventing the part A to be extruded from adhering to the second extrusion part 22 .

[0067] The shape of the blowing holes 222 can be circular or square, etc., which is not limited in this embodiment. The number of the blowing holes 222 can be multiple, and the multiple blowing holes 222 can be arranged in an array on the second extrusion member 22. In this way, the situation where the extruded part A adheres to the second extrusion member 22 can be better avoided.

[0068] In some embodiments, referring to FIG. 1 , the first extrusion member 21 is located below the second extrusion member 22 along the vertical direction (Z-axis direction in FIG. 1 ), and the first extrusion member 21 is also used to support the member A to be extruded.

[0069] By making the first extrusion member 21 be located below the second extrusion member 22 in the vertical direction, when the part A to be extruded needs to be flattened, the part A to be extruded can be placed on the first extrusion member 21. In addition to cooperating with the second extrusion member 22 to extrude the part A to be extruded and detecting the pressure on the part A to be extruded, the first extrusion member 21 can also support the part A to be extruded and provide a placement table for the part A to be extruded. The first extrusion member 21 has multiple uses and is very versatile, which can simplify the structure of the pre-pressing device 100.

[0070] Of course, in other embodiments, the first extrusion member 21 may also be located above the second extrusion member 22 in the vertical direction, which is not limited in this embodiment.

[0071] In addition, when the first extrusion member 21 is located below the second extrusion member 22 in the vertical direction, the first extrusion member 21 and the second extrusion member 22 are arranged in the vertical direction. Of course, in other embodiments, the first extrusion member 21 and the second extrusion member 22 can also be arranged in the horizontal direction. This embodiment does not limit the arrangement direction of the first extrusion member 21 and the second extrusion member 22.

[0072] In some embodiments, referring to Figures 3 and 4, the extrusion drive assembly 23 includes: an extrusion drive member 231 and a screw mechanism 232, wherein the screw mechanism 232 is arranged on the mounting frame 1, the extrusion drive member 231 is connected to the screw mechanism 232, the screw mechanism 232 is connected to the second extrusion member 22, and the extrusion drive member 231 is used to drive the second extrusion member 22 to move in a direction close to or away from the first extrusion member 21 through the screw mechanism 232.

[0073] Since the screw mechanism 232 is connected to the second extrusion member 22 and the extrusion drive member 231 is connected to the screw mechanism 232, the extrusion drive member 231 can drive the second extrusion member 22 to move in the direction of approaching or moving away from the first extrusion member 21 through the screw mechanism 232, thereby achieving the purpose of clamping or loosening the extruded member A between the first extrusion member 21 and the second extrusion member 22.

[0074] Since the screw mechanism 232 has the ability to convert rotational motion into linear motion, when the extrusion drive member 231 is a motor, the screw mechanism 232 can convert the rotational motion of the motor into linear motion in which the second extrusion member 22 moves toward or away from the first extrusion member 21.

[0075] It can be seen that by setting the screw mechanism 232 between the extrusion drive member 231 and the second extrusion member 22, the extrusion drive member 231 can select a more common motor that outputs rotational motion as the extrusion drive member 231, making the selection of the extrusion drive member 231 relatively simple.

[0076] In some embodiments, referring to Figures 3, 4 and 5, the screw mechanism 232 includes: a transmission nut 2321 and a screw rod 2322, wherein the transmission nut 2321 is rotatably arranged on the mounting frame 1, the extrusion drive member 231 is used to drive the transmission nut 2321 to rotate, the screw rod 2322 is threadedly connected to the transmission nut 2321 and extends along the moving direction of the second extrusion member 22 (Z-axis direction in Figure 5), referring to Figures 4 and 5, the second extrusion member 22 is connected to the screw rod 2322 and a stop portion 23221 is provided between the second extrusion member 22 and the screw rod 2322, and the stop portion 23221 is used to prevent the screw rod 2322 from rotating around its own axial direction relative to the second extrusion member 22.

[0077] In this embodiment, since the transmission nut 2321 is rotatably arranged on the mounting frame 1, the screw rod 2322 is threadedly connected to the transmission nut 2321 and extends along the moving direction of the second extruded member 22, the second extruded member 22 is connected to the screw rod 2322 and a stop portion 23221 is provided between the second extruded member 22 and the screw rod 2322, and since the second extruded member 22 is slidably arranged on the mounting frame 1 in the direction approaching or moving away from the first extruded member 21, therefore, when the extrusion driving member 231 drives the transmission nut 2321 to start rotating, under the limiting action of the second extruded member 22 and the stop portion 23221, the screw rod 2322 cannot rotate with the transmission nut 2321, but can only move along the extension direction of the screw rod 2322 (Z-axis direction in Figure 5), thereby driving the second extruded member 22 set on the screw rod 2322 to move along the extension direction of the screw rod 2322, thereby achieving the purpose of driving the second extruded member 22 to move in the direction approaching or moving away from the first extruded member 21.

[0078] Among them, there are many ways to rotatably set the above-mentioned transmission nut 2321 on the mounting frame 1. In one possible implementation method, see Figure 5, a rotating shaft 2323 can be sleeved on the transmission nut 2321, and the rotating shaft 2323 can be rotatably set on the mounting frame 1 through a bearing 2324, thereby achieving the purpose of rotatably setting the transmission nut 2321 on the mounting frame 1.

[0079] Of course, the transmission nut 2321 may also be rotatably disposed on the mounting bracket 1 in other ways, which will not be listed here in this embodiment.

[0080] In addition, there are many ways for the above-mentioned extrusion drive member 231 to drive the transmission nut 2321 to rotate. In one possible implementation method, referring to Figures 3 and 5, a synchronous pulley structure 233 can be provided between the extrusion drive member 231 and the transmission nut 2321, and the extrusion drive member 231 can drive the transmission nut 2321 to rotate through the synchronous pulley structure 233.

[0081] Of course, the extrusion driving member 231 can also drive the driving nut 2321 to rotate in other ways, which is not limited in this embodiment.

[0082] It is worth noting that since the second extrusion member 22 is slidably arranged on the mounting frame 1 in a direction close to or away from the first extrusion member 21, and since the screw rod 2322 is threadedly connected to the transmission nut 2321 and extends along the moving direction of the second extrusion member 22, when the installation accuracy of the second extrusion member 22, the screw rod 2322, the transmission nut 2321 or the screw rod 2322 is not high enough, it is easy for the screw rod 2322 to get stuck or the second extrusion member 22 to get stuck. In order to avoid this situation, in some embodiments, see Figure 5, the second extrusion member 22 is floatingly connected to the screw rod 2322.

[0083] By making the second extrusion member 22 and the screw rod 2322 floatingly connected, even if the installation accuracy of the second extrusion member 22, the screw rod 2322, the transmission nut 2321 or the screw rod 2322 is not high enough and causes deviation from the preset position, the positional relationship between the second extrusion member 22 and the screw rod 2322 can be slightly changed to eliminate the position deviation caused by the low installation accuracy, thereby avoiding the screw rod 2322 or the second extrusion member 22 from getting stuck.

[0084] Among them, there are many ways of floating connection between the above-mentioned second extrusion member 22 and the screw rod 2322. In one possible implementation method, see Figure 5, a plug-in structure 23222 is provided at the end of the screw rod 2322, and a limiting cavity 221 is provided on the second extrusion member 22. The plug-in structure 23222 is plugged into the limiting cavity 221 and has a gap between it and the cavity wall of the limiting cavity 221.

[0085] Since the plug-in structure 23222 is plugged into the limiting cavity 221 and has a gap between it and the cavity wall of the limiting cavity 221, the gap between the plug-in structure 23222 and the cavity wall of the limiting cavity 221 can allow the position of the plug-in structure 23222 in the limiting cavity 221 to change slightly, and then the position of the screw rod 2322 relative to the second extrusion component 22 can change slightly, thereby achieving the purpose of floating connection between the second extrusion component 22 and the screw rod 2322.

[0086] Of course, the second extrusion member 22 and the screw rod 2322 may also be connected in a floating manner through other means, which is not limited in this embodiment.

[0087] In order to make the plug structure 23222 move more smoothly when the position of the plug structure 23222 in the limiting cavity 221 changes slightly, in some embodiments, as shown in Figure 5, at least a portion of the surface of the plug structure 23222 is a spherical surface 23222a. By making at least a portion of the surface of the plug structure 23222 a spherical surface 23222a, the spherical surface 23222a can reduce the friction between the plug structure 23222 and the cavity wall of the limiting cavity 221, thereby making the plug structure 23222 move more smoothly when the position of the plug structure 23222 in the limiting cavity 221 changes slightly.

[0088] In some embodiments, referring to FIG4 , a cutting portion is provided on the plug-in structure 23222, and the cavity wall of the limiting cavity 221 matches the cutting portion, forming a rotation-stopping portion 23221. Since the cavity wall of the limiting cavity 221 matches the cutting portion, the cavity wall of the limiting cavity 221 and the cutting portion can together form a structure similar to the cooperation between a limiting pin and a limiting hole, thereby achieving a limiting effect, thereby preventing the screw rod 2322 from rotating about its own axis relative to the second extruded member 22.

[0089] When the cutting portion forms the stop portion 23221, the cutting portion can be manufactured by only cutting material on the plug-in structure 23222 without adding a new structure, so that the structure of the stop portion 23221 is simple, thereby achieving the effect of reducing the manufacturing cost of the stop portion 23221.

[0090] Of course, the anti-rotation portion 23221 may also have other possible structures, and this embodiment does not limit the anti-rotation portion 23221.

[0091] In some embodiments, referring to FIG1 , a mounting frame 1 includes a first mounting member 11, a second mounting member 12, and a connecting member 13. The second mounting member 12 is spaced apart from the first mounting member 11 along the direction of movement of the first extrusion member 21 or the second extrusion member 22 (the Z-axis direction in FIG1 ). The connecting member 13 is disposed between the first mounting member 11 and the second mounting member 12 and is connected to the first mounting member 11 and the second mounting member 12, respectively. The first extrusion member 21 and the second extrusion member 22 are both located between the first mounting member 11 and the second mounting member 12.

[0092] Since the first extrusion member 21 and the second extrusion member 22 are both located between the first mounting member 11 and the second mounting member 12, the first extrusion member 21 and the second extrusion member 22 will be wrapped in the space formed by the first mounting member 11 and the second mounting member 12. This arrangement can make the environment in which the first extrusion member 21 and the second extrusion member 22 are located more closed and less susceptible to external influences, and can reduce or even avoid the possibility of interference with other external components during the movement of the first extrusion member 21 and the second extrusion member 22, thereby making the operation of the pre-pressing device 100 more reliable.

[0093] Among them, the above-mentioned first mounting member 11 and the second mounting member 12 can both be mounting plates, and the above-mentioned connecting member 13 can be a connecting rod. The number of connecting rods can be four, five or six, etc. This embodiment does not limit the structure of the first mounting member 11, the second mounting member 12 and the connecting member 13, nor the number of the connecting members 13.

[0094] In some embodiments, referring to Figures 3 and 6, the pre-pressing device 100 further includes: a conveying assembly 3, which is used to convey the part A to be extruded to between the first extrusion part 21 and the second extrusion part 22, and the conveying assembly 3 is also used to move the part A to be extruded away after the part A to be extruded is released between the first extrusion part 21 and the second extrusion part 22.

[0095] By setting up the conveying component 3, the conveying component 3 can automatically convey the part A to be extruded between the first extrusion part 21 and the second extrusion part 22, and move the part A to be extruded away after the part A to be extruded is released between the first extrusion part 21 and the second extrusion part 22, so that the degree of automation of the pre-pressing device 100 is higher, thereby achieving the purpose of reducing the labor intensity of personnel.

[0096] There are many ways to implement the above-mentioned conveying component 3. In a first possible implementation, the above-mentioned conveying component 3 can be a conveying robot. In a second possible implementation, referring to Figure 6, the conveying component 3 includes: a conveying drive member 31 and a conveyor belt 32, wherein the conveying drive member 31 is connected to the conveyor belt 32, and part of the structure of the conveyor belt 32 is located between the first extrusion member 21 and the second extrusion member 22. The conveying drive member 31 is used to drive the conveyor belt 32 to convey the part A to be extruded to between the first extrusion member 21 and the second extrusion member 22. The conveying drive member 31 is also used to continue to drive the conveyor belt 32 to convey after the part A to be extruded is released between the first extrusion member 21 and the second extrusion member 22, so as to move the part A to be extruded away.

[0097] When the transport assembly 3 includes a transport drive member 31 and a conveyor belt 32, the purpose of transporting the part A to be extruded to between the first extrusion member 21 and the second extrusion member 22 and moving the part A to be extruded away from between the first extrusion member 21 and the second extrusion member 22 can be achieved by rotating the conveyor belt 32. This method is low-cost and reliable in operation. Therefore, the cost of the pre-pressing device 100 can be reduced while ensuring the reliability of the operation of the pre-pressing device 100.

[0098] Among them, the above-mentioned transmission drive component 31 can be a structure composed of a drive roller and a motor, the motor is connected to the drive roller, and the conveyor belt 32 is sleeved on the drive roller. Of course, the transmission drive component 31 can also be other possible structures, which is not limited in this embodiment.

[0099] To improve the efficiency of the pre-pressing device 100 in flattening the workpiece A, in some embodiments, as shown in FIG3 , a plurality of pre-pressing assemblies 2 are provided, and the plurality of pre-pressing assemblies 2 are arranged in an array and spaced apart on the mounting frame 1. By providing a plurality of pre-pressing assemblies 2, the plurality of pre-pressing assemblies 2 can simultaneously flatten the workpiece A, thereby improving the efficiency of the pre-pressing device 100 in flattening the workpiece A.

[0100] The number of the pre-pressing components 2 can be two, three or four, etc., which is not limited in this embodiment.

[0101] The present disclosure further provides a winding machine 200 . Referring to FIG. 7 , the winding machine 200 includes a pre-pressing device 100 .

[0102] Among them, the structure of the pre-pressing device 100 can be the same as the structure of the pre-pressing device 100 described in any of the above embodiments, and can bring the same or similar beneficial effects. For details, please refer to the description of the pre-pressing device 100 in the above embodiments, which will not be repeated in this embodiment.

[0103] In this embodiment, since the pre-pressing device 100 has a simple structure and a small size, when the winding machine 200 includes the pre-pressing device 100 , the winding machine 200 can have a simple structure and a small size.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A preloading device (100), comprising: Mounting frame (1); as well as, A pre-pressing assembly (2), wherein the pre-pressing assembly (2) is arranged on the mounting frame (1), and the pre-pressing assembly (2) comprises a first extrusion member (21), a second extrusion member (22) and an extrusion drive assembly (23), wherein the extrusion drive assembly (23) is used to drive at least one of the second extrusion member (22) and the first extrusion member (21) to move in a direction close to or away from the other, so as to clamp or release the part to be extruded (A) between the first extrusion member (21) and the second extrusion member (22), wherein at least one of the first extrusion member (21) and the second extrusion member (22) is a pressure detection sensor, and the pressure detection sensor is used to detect the pressure on the part to be extruded (A) when it is clamped between the first extrusion member (21) and the second extrusion member (22).

2. The preloading device (100) according to claim 1, wherein: The first extrusion member (21) is fixedly arranged on the mounting frame (1), the second extrusion member (22) is slidably arranged on the mounting frame (1) in a direction approaching or moving away from the first extrusion member (21), the extrusion drive assembly (23) is arranged on the mounting frame (1) and connected to the second extrusion member (22), and is used to drive the second extrusion member (22) to move in a direction approaching or moving away from the first extrusion member (21), wherein the first extrusion member (21) is a pressure detection sensor, and the second extrusion member (22) is a pressure plate.

3. The preloading device (100) according to claim 2, wherein: The second extrusion piece (22) is provided with a blowing hole (222) for blowing air toward the piece to be extruded (A).

4. The preloading device (100) according to claim 2 or 3, wherein: The first extrusion member (21) is located below the second extrusion member (22) in the vertical direction, and the first extrusion member (21) is also used to support the member to be extruded (A).

5. The preloading device (100) according to any one of claims 2 to 4, wherein: The extrusion drive assembly (23) comprises: an extrusion drive member (231); and A screw mechanism (232), the screw mechanism (232) is arranged on the mounting frame (1), the extrusion drive member (231) is connected to the screw mechanism (232), the screw mechanism (232) is connected to the second extrusion member (22), and the extrusion drive member (231) is used to drive the second extrusion member (22) to move in a direction close to or away from the first extrusion member (21) through the screw mechanism (232).

6. The preloading device (100) according to claim 5, wherein: The screw mechanism (232) comprises: a transmission nut (2321), the transmission nut (2321) being rotatably disposed on the mounting frame (1), and the extrusion drive member (231) being used to drive the transmission nut (2321) to rotate; A screw rod (2322), the screw rod (2322) is threadedly connected to the transmission nut (2321) and extends along the moving direction of the second extrusion member (22), the second extrusion member (22) is connected to the screw rod (2322), and a rotation-stopping portion (23221) is provided between the second extrusion member (22) and the screw rod (2322), the rotation-stopping portion (23221) is used to prevent the screw rod (2322) from rotating about its own axial direction relative to the second extrusion member (22).

7. The preloading device (100) according to claim 6, wherein: The second extrusion member (22) is floatingly connected to the screw rod (2322).

8. The preloading device (100) according to claim 7, wherein: The end of the screw rod (2322) is provided with a plug-in structure (23222), and a limiting cavity (221) is provided on the second extrusion member (22). The plug-in structure (23222) is plugged into the limiting cavity (221) and has a gap with the cavity wall of the limiting cavity (221).

9. The preloading device (100) according to any one of claims 1 to 8, wherein: The pressure detection sensor is a plate-type pressure detection sensor.

10. The preloading device (100) according to any one of claims 1 to 8, wherein: The mounting frame (1) comprises: a first mounting member (11); a second mounting member (12), the second mounting member (12) and the first mounting member (11) being arranged opposite to each other with a distance therebetween along a moving direction of the second extrusion member (22) or the first extrusion member (21); and a connecting member (13), the connecting member (13) being disposed between the first mounting member (11) and the second mounting member (12) and being connected to the first mounting member (11) and the second mounting member (12) respectively; Wherein, the first extrusion member (21) and the second extrusion member (22) are both located between the first mounting member (11) and the second mounting member (12).

11. The preloading device (100) according to any one of claims 1 to 8, wherein: The pre-pressing device (100) further comprises: A transport assembly (3) is used to transport the part to be extruded (A) between the first extrusion member (21) and the second extrusion member (22), and the transport assembly (3) is also used to move the part to be extruded (A) away after the part to be extruded (A) is released between the first extrusion member (21) and the second extrusion member (22).

12. The preloading device (100) according to claim 11, wherein: The transport assembly (3) comprises: a transmission drive member (31); A conveyor belt (32), the conveyor drive member (31) is connected to the conveyor belt (32), a part of the structure of the conveyor belt (32) is located between the first extrusion member (21) and the second extrusion member (22), the conveyor drive member (31) is used to drive the conveyor belt (32) to convey the part to be extruded (A) to between the first extrusion member (21) and the second extrusion member (22), and the conveyor drive member (31) is also used to continue driving the conveyor belt (32) to convey the part to be extruded (A) after it is released between the first extrusion member (21) and the second extrusion member (22), so as to move the part to be extruded (A) away.

13. The preloading device (100) according to any one of claims 1 to 8, wherein: There are multiple pre-pressing components (2), and the multiple pre-pressing components (2) are arranged in an array at intervals on the mounting frame (1).

14. A winding machine (200), comprising the pre-pressing device (100) according to any one of claims 1 to 13.

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