Winding device and winding method for aluminum foil

Abstract

The invention relates to the technical field of winding devices, in particular to a winding device and method for aluminum foil. A winding device for aluminum foil comprises a support, a feeding mechanism and a winding mechanism. The feeding mechanism is installed on the support and can convey aluminum foil to be wound, the winding mechanism comprises a rotating frame and two winding rollers, the rotating frame can be rotatably installed on the support, and the two winding rollers are both installed on the rotating frame. Each winding roller is provided with a cut-off assembly and a suction assembly. According to the winding device for the aluminum foil, the cut-off assembly is used as a starting section of the winding roller for winding the aluminum foil, the aluminum foil located on the rear side of the starting section can be tightly attached to the winding barrel in the rotation direction of the winding roller by means of negative pressure suction force provided by the suction assembly while the winding roller rotates in the rotation direction, and therefore the winding efficiency is improved. And the winding quality of the aluminum foil is improved.

Description

Technical Field

[0001] The invention relates to the technical field of winding devices, and in particular to a winding device and a winding method for aluminum foil. Background Art

[0002] Aluminum foil is a material widely used in food packaging, industrial protection, electronic products and other fields. It has the advantages of light weight, corrosion resistance and strong plasticity. With the continuous improvement of aluminum foil production technology, the demand for aluminum foil in the market continues to grow.

[0003] In the production process of aluminum foil, the winding device is one of the key links and has an important impact on the quality and subsequent performance of the aluminum foil.

[0004] The existing aluminum foil winding device usually uses two winding rollers to work alternately. When in use, one end of the aluminum foil to be wound is fixed on one of the winding rollers, and the winding roller is driven to rotate by a rotating mechanism to wind the aluminum foil around the winding roller. As the rotating mechanism continues to rotate, the aluminum foil is rolled into a bundle. After the winding roller has completed winding, the aluminum foil is first wound around another winding roller, and then the aluminum foil is torn off to separate the winding roller that has been wound from the aluminum foil to be wound. After that, the other winding roller that has not been wound is driven to rotate by the rotating mechanism to wind up the aluminum foil, and the winding roller that has been wound is removed. However, when the two winding rollers work alternately, when the winding roller that has completed winding is separated from the aluminum foil to be wound, the aluminum foil to be wound will overlap on the winding roller that has not yet been wound. This will cause the winding roller to be driven by the rotating mechanism to wind up. In the initial stage of winding, the part of the aluminum foil overlapping the winding roller is prone to local twisting and folding, causing wrinkles in the aluminum foil in the early stage of winding, resulting in a reduction in the effective part of the aluminum foil that can be normally used, which has an adverse effect on the winding quality of the aluminum foil. Summary of the invention

[0005] The invention provides a winding device and a winding method for aluminum foil, so as to solve the problem that in the initial stage of winding of the existing aluminum foil winding device, the aluminum foil is prone to local twisting and folding, which has an adverse effect on the winding quality of the aluminum foil.

[0006] The invention provides a winding device for aluminum foil, which adopts the following technical scheme: a winding device for aluminum foil, comprising a bracket, a feeding mechanism and a winding mechanism; the feeding mechanism is installed on the bracket and can convey the aluminum foil to be wound, the conveying direction of the aluminum foil is called a first direction, and the first direction is a horizontal direction; the winding mechanism is installed on the bracket, the winding mechanism comprises a rotating frame and two winding rollers, the rotating frame can be rotatably installed on the bracket around a second direction, the second direction is a horizontal direction and perpendicular to the first direction; the two winding rollers are both arranged along the second direction and are both installed on the rotating frame, the two winding rollers can rotate with the rotating frame and can rotate around their own axes; the two winding rollers are both sleeved with a winding drum, each winding roller is provided with a cutting component and a suction component, the cutting component can separate the aluminum foil between the winding roller that has wound up the aluminum foil and the winding roller that has not wound up the aluminum foil, and the suction component can provide negative pressure to the separation of the aluminum foil.

[0007] Furthermore, the cutting assembly includes a first push rod, which is arranged on the winding roller and can move relative to the winding roller along a third direction, the third direction being the radial direction of the winding roller, the side close to the central axis of the winding roller along the third direction being called inner, and the side away from the central axis of the winding roller being called outer, a plurality of first push pins are arranged on the first push rod, and the plurality of first push pins are arranged in sequence on the first push rod along the second direction, the first push pin is located on the outer side of the first push rod, and the first push pin is a conical structure with a small outer end and a large inner end; in an initial state, the first push pin is retracted into the winding roller; and when the first push pin extends out of the winding roller, the first push pin is arranged vertically and perpendicular to the aluminum foil arranged along the first direction.

[0008] Furthermore, the suction component includes an air pump, which is installed on a rotating frame. A main airway and multiple branch airways are opened on the first push rod. The main airway is arranged along the second direction, and the branch airway is arranged along the third direction. The multiple branch airways are arranged in a one-to-one correspondence with the multiple first push pins. The two ends of the branch airway along the third direction are respectively called the first end and the second end. The first end of each branch airway is connected to the main airway, and the second end of each branch airway is connected to the outside world through the corresponding first push pin. The air pump is connected to the main airway, and the air pump can draw air from the main airway.

[0009] Furthermore, each winding roller is also provided with a second push rod, the second push rod can move along a third direction relative to the winding roller, the first push rod and the second push rod are sequentially arranged in the rotation direction of the winding roller, and in the rotation direction of the winding roller, the first push rod is located in front of the second push rod; a plurality of second push pins are arranged on the second push rod, the plurality of second push pins are sequentially arranged on the second push rod along the second direction, the second push pin is located outside the second push rod, and in an initial state, the second push pin is retracted into the winding roller; the size of the second push pin in the third direction is smaller than the size of the first push pin in the third direction, and the size of the second push rod in the third direction is equal to the size of the first push rod in the third direction, When the first ejector pin extends out of the winding roller, it can drive the second ejector pin to extend synchronously. When the second ejector pin is retracted into the winding roller, the second end of the branch airway on the first ejector pin is still between the aluminum foil and the winding roller. A main glue spraying channel and multiple branch glue spraying channels are provided on the second ejector pin. The main glue spraying channel is arranged along the second direction, and the branch glue spraying channel is arranged along the third direction. The multiple branch glue spraying channels are arranged in a one-to-one correspondence with the multiple second ejectors. One end of each branch glue spraying channel along the third direction is connected to the main glue spraying channel, and the other end of each branch glue spraying channel along the third direction is connected to the outside through the corresponding second ejector pin. A glue filling pump is provided on the rotating frame, and the glue filling pump is connected to the main glue spraying channel.

[0010] Furthermore, a main oil channel and multiple branch oil channels are provided on the winding roller, the main oil channel is arranged along the second direction, the branch oil channels are arranged along the third direction and are connected with the main oil channel, an oil distribution ring is provided on the rotating frame, the oil distribution ring can supply oil to the main oil channel or draw oil from the main oil channel; an oil chamber is provided on the winding roller, the oil chamber is connected with the multiple branch oil channels, a control block is provided in the oil chamber, the control block can be movably installed in the oil chamber along the third direction, a first magnet is provided on the control block, and a second magnet is provided on both the first push rod and the second push rod, and the first magnet can be attracted to the second magnet.

[0011] Furthermore, a rotating wheel is arranged on the bracket, and the rotating wheel can be arranged to rotate around its own axis. A matching wheel is arranged on each winding roller, and the rotating frame drives the two winding rollers to rotate around the second direction to enable any matching wheel to rotate to engage with the rotating wheel.

[0012] Furthermore, a plurality of pushing members are arranged on the winding roller, and the plurality of pushing members are arranged in sequence along the second direction on the winding roller. The pushing members include a plurality of pushing blocks, and the plurality of pushing blocks are evenly distributed around the second direction on the winding roller, and the plurality of pushing blocks can move along a third direction on the winding roller, and the third direction is the radial direction of the winding roller.

[0013] Furthermore, the winding roller includes a center column and a column shell, the center column and the column shell are coaxially arranged, the column shell and the center column are socketed, the center column can move in the second direction relative to the column shell, and the center column can rotate synchronously with the column shell around the second direction, and multiple pushing blocks of the pushing member are installed in the column shell through a first elastic member, and the first elastic member is arranged along the third direction; multiple first wedge surfaces are arranged on the center column along the second direction, the first wedge surfaces are arranged on the center column around the second direction, and each first wedge surface is arranged corresponding to a pushing member, and when the center column moves in the second direction relative to the column shell, the center column can prompt the multiple pushing blocks to move along the third direction.

[0014] Furthermore, the feeding mechanism includes a feed roller, a guide roller, a transmission roller and a pressure roller; the feed roller, the guide roller, the transmission roller and the pressure roller are all arranged on a bracket and can rotate around their own axes, the feed roller, the guide roller and the transmission roller are arranged in sequence in the first direction, and the feed roller is located on the side of the transmission roller away from the winding roller in the first direction; the pressure roller and the transmission roller are arranged in sequence in the vertical direction, and a limiting space is defined between the pressure roller and the transmission roller; the aluminum foil to be wound on the feed roller, one end of the aluminum foil is pulled out from the feed roller, and after passing through the guide roller and the limiting space, it is wound on the winding roller on the side close to the transmission roller along the first direction.

[0015] The present invention also provides a method for rolling up an aluminum foil, using the above-mentioned rolling up device for aluminum foil, and further comprising the following steps: S10, sleeve a winding drum on the winding roller on the side close to the feeding mechanism in the first direction, and drive the winding roller to rotate around its own axis to wind up the aluminum foil; S20, putting a winding drum on the winding roller of the unwound aluminum foil, and driving the rotating frame to rotate in the second direction, so that the winding roller of the unwound aluminum foil is located on the side of the winding roller of the wound aluminum foil close to the feeding mechanism in the first direction; S30, starting the cutting component on the winding roller of the unwound aluminum foil to separate the aluminum foil between the winding roller of the rolled aluminum foil and the winding roller of the unwound aluminum foil, and synchronously starting the suction component on the winding roller to provide negative pressure to the separation of the aluminum foil; S40, driving the winding roller of the unwound aluminum foil to rotate around its own axis to wind the aluminum foil.

[0016] The beneficial effects of the present invention are as follows: a winding device for aluminum foil of the present invention utilizes a cut-off component as the starting section of the winding roller for winding the aluminum foil, controls the contact position of the starting section of the aluminum foil with the winding roller, and utilizes the negative pressure suction force provided by the suction component while the winding roller rotates, so that the aluminum foil at the rear side of the starting section can be tightly attached to the winding drum in the direction of rotation of the winding roller, and utilizes the negative pressure to pull the aluminum foil, thereby avoiding wrinkles and curling of the aluminum foil in the early stage of winding as much as possible, thereby improving the winding quality of the aluminum foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a winding device for aluminum foil of the present invention; Figure 2 The working state of the winding roller of an embodiment of a winding device for aluminum foil of the present invention is shown in FIG. Figure 1 ; Figure 3 The working state of the winding roller of an embodiment of a winding device for aluminum foil of the present invention is shown in FIG. Figure 2 ; Figure 4 The working state of the winding roller of an embodiment of a winding device for aluminum foil of the present invention is shown in FIG. Figure 3 ; Figure 5 It is a structural schematic diagram of a winding roller of an embodiment of a winding device for aluminum foil of the present invention; Figure 6 A cross-sectional view of a winding roller of an embodiment of a winding device for aluminum foil of the present invention; Figure 7 A side view of a winding roller of an embodiment of a winding device for aluminum foil of the present invention; Figure 8 for Figure 7 Sectional view along AA; Fig. 9 for Figure 7 Cross-sectional view along the middle line BB; Fig.10 for Fig. 9 The enlarged view of point D in the middle; Fig.11 for Figure 7 Cross-sectional view at the middle edge CC; Fig.12 for Fig.11 Enlarged view of point E in the middle; Fig.13 The present invention is a cross-sectional view of a rotating frame of an embodiment of a winding device for aluminum foil of the present invention.

[0019] In the figure: 100, bracket; 110, rotating wheel; 200, feeding mechanism; 210, feeding roller; 220, guide roller; 230, driving roller; 240, pressing roller; 300, winding mechanism; 310, rotating frame; 320, winding roller; 321, matching wheel; 322, center column; 323, column shell; 324, first wedge surface; 330, truncation assembly; 331, first push rod; 332, first push rod needle; 333, main air channel; 334, branch air channel; 335, first adapter chamber; 340, second ejector rod; 341, second ejector needle; 342, main glue spraying channel; 343, branch glue spraying channel; 344, second adapter chamber; 350, main oil channel; 351, branch oil channel; 352, oil distribution ring; 353, oil chamber; 354, control block; 360, ejector block; 361, first elastic member; 400, aluminum foil. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] An embodiment of a winding device for aluminum foil of the present invention is as follows Figures 1 to 13 shown.

[0022] A winding device for aluminum foil includes a bracket 100, a feeding mechanism 200 and a winding mechanism 300. The feeding mechanism 200 is installed on the bracket 100 and can convey the aluminum foil 400 to be rolled. The conveying direction of the aluminum foil 400 is called the first direction, and the first direction is the horizontal direction. The winding mechanism 300 is installed on the bracket 100, and the winding mechanism 300 includes a rotating frame 310 and two winding rollers 320. The rotating frame 310 can be mounted on the bracket 100 so as to rotate around a second direction. The second direction is a horizontal direction and perpendicular to the first direction. The two winding rollers 320 are both arranged along the second direction and are both mounted on the rotating frame 310. The two winding rollers 320 can rotate with the rotating frame 310 and can rotate around their own axes. Both winding rollers 320 are provided with a winding drum, which is a paper drum. Each winding roller 320 is provided with a cutting component 330 and a suction component. The cutting component 330 can separate the aluminum foil 400 between the winding roller 320 that has rolled up the aluminum foil 400 and the winding roller 320 that has not yet rolled up the aluminum foil 400, and the suction component can provide negative pressure to the separation point of the aluminum foil 400.

[0023] Specifically, the bracket 100 is provided with a first motor, and the first motor can drive the rotating frame 310 to rotate around the second direction.

[0024] In this embodiment, a feeding mechanism 200 and a winding mechanism 300 are arranged on the bracket 100. When in use, a winding drum is firstly sleeved on one of the winding rollers 320, and the winding roller 320 is located on a side of the other winding roller 320 close to the feeding mechanism 200 in the first direction, and then the winding roller 320 is driven to rotate around its own axis to wind up the aluminum foil 400. Figure 2 As shown, at this time, the winding roller 320 on the left has not yet wound up the aluminum foil 400, while the winding roller 320 on the right has completed winding up the aluminum foil 400. For the convenience of explanation, the winding roller 320 on the left is called the second winding roller, and the winding roller 320 on the right is called the first winding roller.

[0025] After the first winding roller is wound up, the second winding roller is used to replace the first winding roller. The specific operation is to set a winding drum on the second winding roller and drive the rotating frame 310 to rotate around the second direction. The rotation of the rotating frame 310 will drive the first winding roller and the second winding roller to rotate synchronously, so that the first winding roller and the second winding roller will revolve around the rotation axis of the rotating frame 310. Figure 3 and attached Figure 4 , so that the first winding roller comes to the left side of the second winding roller, that is, the second winding roller is located on the side of the first winding roller close to the feeding mechanism 200 in the first direction, and then the cutting component 330 on the second winding roller is started to separate the aluminum foil 400 at the junction of the first winding roller and the second winding roller, and the suction component is started synchronously, and then the aluminum foil 400 at the junction is cut off, and the suction component is used to provide negative pressure suction force to the separation of the aluminum foil 400, so that the aluminum foil 400 can be attached to the winding drum under the action of negative pressure, and then the second winding roller is driven to rotate, and the aluminum foil 400 is rolled up by the second winding roller, and the winding drum with the aluminum foil 400 on the first winding roller is removed, and this reciprocating operation is realized to realize the alternating operation of the first winding roller and the second winding roller.

[0026] It can be understood that the first winding roller and the second winding roller are both winding rollers 320 with the same structure. Only in order to make the description concise and easy to understand, “first” and “second” are added in front of the winding roller 320.

[0027] That is, in this embodiment, the cut-off assembly 330 is used as the starting section of the winding roller 320 to roll up the aluminum foil 400, and the contact position between the starting section of the aluminum foil 400 and the winding roller 320 is controlled. When the winding roller 320 rotates, the negative pressure suction force provided by the suction assembly is used to make the aluminum foil 400 at the rear side of the starting section tightly attached to the winding drum in the direction of rotation of the winding roller 320. That is, the winding roller 320 is connected to the winding drum with the negative pressure suction force provided by the suction assembly. Figure 2The foil 400 rotates counterclockwise in the direction shown, and the direction close to the counterclockwise arrow in the rotation direction is called the front, and the direction away from the counterclockwise arrow is called the rear. Negative pressure is used to pull the aluminum foil 400 to avoid wrinkles and curling of the aluminum foil 400 in the early stage of winding as much as possible, thereby improving the winding quality of the aluminum foil 400.

[0028] In this embodiment, the truncation assembly 330 includes a first push rod 331, which is arranged on the winding roller 320 and can move relative to the winding roller 320 along a third direction, the third direction being the radial direction of the winding roller 320, the side close to the central axis of the winding roller 320 along the third direction being referred to as the inner side, and the side away from the central axis of the winding roller 320 being referred to as the outer side, and a plurality of first push pins 332 are arranged on the first push rod 331 in sequence along the second direction, the first push pins 332 and the first push rod 331 are an integrally formed structure, the first push pin 332 is located outside the first push rod 331, and the first push pin 332 is a conical structure with a small outer end and a large inner end. In the initial state, the first push pin 332 is retracted into the winding roller 320. When the first push pin 332 extends out of the winding roller 320, the first push pin 332 is arranged vertically and perpendicular to the aluminum foil 400 arranged along the first direction.

[0029] In this embodiment, the first ejector rod 331 and the first ejector pin 332 are provided to cooperate with each other. When it is necessary to separate the aluminum foil 400 between the winding roller 320 that has rolled up the aluminum foil 400 and the winding roller 320 that has not rolled up the aluminum foil 400, see the attached Figure 6 As shown, the first ejector rod 331 is driven to move along the third direction, so that multiple first ejector pins 332 are extended, and the first ejector pins 332 are used to pierce the winding drum and the aluminum foil 400, forming a virtual break on the aluminum foil 400, and assisting the operator to cut the aluminum foil 400, and the cut portion is used as the starting section of the winding roller 320 for winding.

[0030] In this embodiment, the suction assembly includes an air pump, which is mounted on the rotating frame 310 and is not shown in the drawings. A main airway 333 and a plurality of branch airways 334 are provided on the first push rod 331. The main airway 333 is arranged along the second direction, and the branch airway 334 is arranged along the third direction. The plurality of branch airways 334 are arranged one by one with the plurality of first push pins 332. The two ends of the branch airway 334 along the third direction are respectively referred to as the first end and the second end. The first end of each branch airway 334 is connected to the main airway 333, and the second end of each branch airway 334 is connected to the outside through the first push pin 332 corresponding to it. The air pump is connected to the main airway 333 through the first transfer cavity 335. The air pump can extract air from the main airway 333, and the second end of the branch airway 334 faces the aluminum foil 400 located at the rear side thereof.

[0031] During use, after the first ejector pin 332 punctures the winding drum and the aluminum foil 400, the first ejector pin 332 applies an upward force to the aluminum foil 400 during the ejection process, thereby defining a suction space between the aluminum foil 400 and the winding drum when the first ejector pin 332 is ejected, and the second end of each branch airway 334 is connected to the suction space. Then, an air pump is used to extract air from the main airway 333, and then a negative pressure suction force is provided to the suction space between the aluminum foil 400 and the winding drum through the branch airway 334, so that the aluminum foil 400 at the rear side of the starting section can be relatively tightly attached to the winding drum, and the part of the aluminum foil 400 lifted by the first ejector pin 332 will be adsorbed on the surface of the first ejector pin 332, and then the aluminum foil 400 at the junction is manually cut off.

[0032] Alternatively, in another possible embodiment, the main airway 333 and the plurality of branch airways 334 are both provided on the winding roller 320, the main airway 333 is arranged along the second direction, the branch airways 334 are arranged along the third direction, and in the rotation direction of the winding roller 320, the main airway 333 is located at the rear side of the first push rod 331, the two ends of the branch airway 334 along the third direction are respectively referred to as the first end and the second end, the first end of each branch airway 334 is connected to the main airway 333, and the second end of each branch airway 334 is connected to the outside. The air pump is connected to the main airway 333 through the first adapter chamber 335, and the air pump can extract air from the main airway 333.

[0033] By making the main air channel 333 located at the rear side of the first ejector pin 331, after the first ejector pin 332 pierces the winding drum and the aluminum foil 400, the vacuum pump is used to extract air from the main air channel 333, and then the branch air channel 334 is used to provide negative pressure suction force between the aluminum foil 400 and the winding drum, so that the aluminum foil 400 at the rear side of the starting section can be tightly attached to the winding drum. However, compared with opening the main air channel 333 and the branch air channel 334 on the first ejector pin 332 to directly perform negative pressure suction on the cut-off point, the main air channel 333 and the branch air channel 334 are opened on the rear side of the first ejector pin 332 in this embodiment, and the negative pressure adsorption effect on the aluminum foil 400 will be slightly reduced.

[0034] In this embodiment, each winding roller 320 is further provided with a second push rod 340, which can move along the third direction relative to the winding roller 320, and the first push rod 331 and the second push rod 340 are sequentially arranged in the rotation direction of the winding roller 320, and in the rotation direction of the winding roller 320, the first push rod 331 is located in front of the second push rod 340. The second push rod 340 is provided with a plurality of second push pins 341, which are sequentially arranged on the second push rod 340 along the second direction, and the second push pins 341 are located outside the second push rod 340, and the second push pins 341 and the second push rod 340 are an integrally formed structure, and the second push pins 341 are retracted into the winding roller 320 in the initial state. The size of the second ejector pin 341 in the third direction is smaller than that of the first ejector pin 332 in the third direction, the size of the second ejector pin 340 in the third direction is equal to that of the first ejector pin 331 in the third direction, and when the first ejector pin 332 extends out of the winding roller 320, it can drive the second ejector pin 341 to extend synchronously, and when the second ejector pin 341 retracts into the winding roller 320, the second end of the branch airway 334 on the first ejector pin 332 is still between the aluminum foil 400 and the winding drum.

[0035] The second ejector rod 340 is provided with a main glue spraying channel 342 and a plurality of sub-glue spraying channels 343. The main glue spraying channel 342 is arranged along the second direction, and the sub-glue spraying channels 343 are arranged along the third direction. The plurality of sub-glue spraying channels 343 are arranged in one-to-one correspondence with the plurality of second ejector pins 341. One end of each sub-glue spraying channel 343 along the third direction is connected to the main glue spraying channel 342, and the other end of each sub-glue spraying channel 343 along the third direction is connected to the outside through the corresponding second ejector pin 341. The rotating frame 310 is provided with a glue pouring pump, which is not shown in the drawings. The glue pouring pump is connected to the main glue spraying channel 342 through the second transfer chamber 344.

[0036] In this embodiment, the second push rod 340 cooperates with the second push pin 341, so that the first push rod 331 is vertically arranged when in use. Figure 6 As shown, the first ejector 331 is driven to move along the third direction to pierce the winding drum and the aluminum foil 400. The movement of the first ejector 331 will drive the second ejector 340 to move synchronously. Since the second ejector 340 is located at the rear side of the first ejector 331 at this time, and the size of the second ejector 341 in the third direction is smaller than the size of the first ejector 332 in the third direction, the size of the second ejector 340 in the third direction is equal to the size of the first ejector 331 in the third direction, so that the second ejector 341 will not continue to pierce the aluminum foil 400 after piercing the winding drum. Then, glue is provided to the main glue spraying channel 342 through the glue spraying channel 343, and finally sprayed from the glue spraying channel 343 to the winding drum.

[0037] Then, the first ejector pin 332 is moved and retracted along the third direction, and stops after the second ejector pin 341 is fully retracted. Since the size of the second ejector pin 341 in the third direction is smaller than the size of the first ejector pin 332 in the third direction, and the size of the second ejector pin 340 in the third direction is equal to the size of the first ejector pin 331 in the third direction, the first ejector pin 332 is not fully retracted, and the second end of the branch airway 334 on the first ejector pin 332 is still between the aluminum foil 400 and the winding drum. That is, the second ejector pin 341 is retracted after injecting glue into the winding drum, and then as the winding roller 320 rotates, the glue on the winding roller can stick the aluminum foil 400 to the winding roller, and at this time, the vacuum pump can still provide negative pressure suction force for the suction space between the aluminum foil 400 and the winding roller, and before the aluminum foil 400 is wound around the winding roller for one circle, that is, before the aluminum foil 400 contacts the first ejector pin 332 again, the first ejector pin 332 is moved along the third direction and completely retracted into the winding roller 320.

[0038] In this embodiment, the winding roller 320 is provided with a main oil passage 350 and a plurality of branch oil passages 351. The main oil passage 350 is arranged along the second direction, and the branch oil passages 351 are arranged along the third direction and communicated with the main oil passage 350. The rotating frame 310 is provided with an oil distribution ring 352, and the oil distribution ring 352 can supply oil to the main oil passage 350 or draw oil from the main oil passage 350. The winding roller 320 is provided with an oil chamber 353, and the oil chamber 353 is communicated with the plurality of branch oil passages 351. A control block 354 is arranged in the oil chamber 353, and the control block 354 can be movably installed in the oil chamber 353 along the third direction. A first magnet is arranged on the control block 354, and a second magnet is arranged on both the first push rod 331 and the second push rod 340, and the first magnet can be attracted to the second magnet.

[0039] In this embodiment, a main oil passage 350 and multiple branch oil passages 351 are opened on the winding roller 320. When the first push rod 331 and the second push rod 340 need to move and extend along the third direction, the oil distribution ring 352 is used to supply oil to the main oil passage 350, and the oil in the main oil passage 350 will flow into the oil chamber 353 through the branch oil passage 351, and prompt the control block 354 in the oil chamber 353 to move in the third direction. Since the first magnet on the control block 354 is attracted by the first push rod 331 and the second magnet on the second push rod 340, the movement of the control block 354 will drive the first push rod 331 and the second push rod 340 to move and extend synchronously. On the contrary, when the first push rod 331 and the second push rod 340 need to move and retract along the third direction, the oil distribution ring 352 is used to pump oil from the main oil channel 350, and the main oil channel 350 will pump oil from the oil chamber 353 through the branch oil channel 351, and prompt the control block 354 in the oil chamber 353 to move in the third direction. The movement of the control block 354 will drive the first push rod 331 and the second push rod 340 to move and retract synchronously.

[0040] In this embodiment, a rotating wheel 110 is provided on the bracket 100, and the rotating wheel 110 can be rotatably arranged around its own axis. A matching wheel 321 is provided on each winding roller 320, and the rotating frame 310 drives the two winding rollers 320 to rotate around the second direction so that any matching wheel 321 can be rotated to engage with the rotating wheel 110.

[0041] Specifically, the rotating wheel 110 and the mating wheel 321 are both friction wheels. A second motor is provided on the bracket 100. The second motor is used to drive the rotating wheel 110 to rotate around its own axis. The rotation of the rotating wheel 110 around its own axis will drive the mating wheel 321 meshing with it to rotate around its own axis, and make the winding roller 320 corresponding to the mating wheel 321 rotate around its own axis.

[0042] When the first winding roller is winding, the rotating wheel 110 is used to drive the matching wheel 321 on the first winding roller to rotate, so that the first winding roller can rotate around its own axis to wind the aluminum foil 400. When the first winding roller is wound, the second winding roller is used to replace the first winding roller, and the operator manually drives the rotating frame 310 to rotate around the second direction. At this time, the matching wheel 321 on the first winding roller will rotate relative to the rotating wheel 110, and the rotating wheel 110 will slip and not move until the matching wheel 321 on the second winding roller rotates to mesh with the rotating wheel 110, and then the rotating wheel 110 is driven to rotate around its own axis, and the matching wheel 321 on the second winding roller is driven to rotate, so that the second winding roller can rotate around its own axis to wind the aluminum foil 400.

[0043] In this embodiment, a plurality of pushing members are provided on the winding roller 320, and the plurality of pushing members are arranged in sequence along the second direction on the winding roller 320. The pushing members include a plurality of pushing blocks 360, and the plurality of pushing blocks 360 are evenly distributed around the second direction on the winding roller 320, and the plurality of pushing blocks 360 can move along the third direction on the winding roller 320.

[0044] Specifically, the winding roller 320 includes a central column 322 and a column shell 323, wherein the central column 322 is coaxially arranged with the column shell 323, and the column shell 323 is sleeved with the central column 322. The main oil passage 350 is opened on the central column 322, and the central column 322 can move in the second direction relative to the column shell 323, and the central column 322 can rotate synchronously with the column shell 323 around the second direction, and the plurality of push blocks 360 of the push member are all installed in the column shell 323 through the first elastic member 361, and the first elastic member 361 is arranged along the third direction, and the first elastic member 361 is an elastic gasket or a spring. A plurality of first wedge surfaces 324 are sequentially arranged on the center column 322 along the second direction. The first wedge surfaces 324 are arranged on the center column 322 around the second direction, and each first wedge surface 324 is arranged corresponding to a push piece. When the center column 322 moves in the second direction relative to the column shell 323, the center column 322 can cause the plurality of push blocks 360 to move along the third direction.

[0045] More specifically, a driving cylinder is provided on the rotating frame 310, and the driving cylinder can drive the central column 322 to move along the second direction, and the central column 322 can rotate around the second direction relative to the driving cylinder. The matching wheel 321 is coaxially arranged and fixedly connected with the column shell 323, and the central column 322 is matched with the keyway of the column shell 323, so that the central column 322 can move along the second direction relative to the column shell 323, and the central column 322 can rotate synchronously with the column shell 323 around the second direction.

[0046] The center column 322 is provided with a spline, which is arranged along the second direction. The column shell 323 is provided with a keyway, which slides with the spline so that the center column 322 can move along the second direction relative to the column shell 323, and the center column 322 can rotate synchronously with the column shell 323 around the second direction.

[0047] An annular protrusion is coaxially arranged on the center column 322, and an annular groove is opened on the output end of the driving cylinder. The annular protrusion and the annular groove are rotatably matched, so that the driving cylinder can drive the center column 322 to move along the second direction, that is, the center column 322 can move synchronously with the output end of the driving cylinder, and the center column 322 can rotate around the second direction relative to the output end of the driving cylinder.

[0048] The present embodiment provides a push block 360. When in use, after the winding drum is sleeved on the winding roller 320, the center column 322 is driven to move in the second direction relative to the column shell 323. The movement of the center column 322 will cause the first wedge surface 324 on the center column 322 to slide along the multiple push blocks 360 of the push members corresponding to it, thereby causing the multiple push blocks 360 of the push members corresponding to the first wedge surface 324 to move along the third direction and extend out to abut against the inner wall of the winding drum, and compress the first elastic member 361, so that the winding drum can be stably sleeved on the winding roller 320, and the extended length of the push block 360 can be adjusted according to the winding roller 320 of different diameters, thereby improving the use range of the winding roller 320.

[0049] In this embodiment, the feeding mechanism 200 includes a feed roller 210, a guide roller 220, a transmission roller 230 and a pressure roller 240. The feed roller 210, the guide roller 220, the transmission roller 230 and the pressure roller 240 are all arranged on the bracket 100 and can rotate around their own axes. The feed roller 210, the guide roller 220 and the transmission roller 230 are arranged in sequence in the first direction, and the feed roller 210 is located on the side of the transmission roller 230 away from the winding roller 320 in the first direction. The pressure roller 240 and the transmission roller 230 are arranged in sequence in the vertical direction, and a limiting space is defined between the pressure roller 240 and the transmission roller 230. The aluminum foil 400 to be wound is wound on the feed roller 210, and one end of the aluminum foil 400 is pulled out from the feed roller 210, and after passing through the guide roller 220 and the limiting space, it is wound on the winding roller 320 on the side close to the transmission roller 230 in the first direction.

[0050] The present invention also provides a method for rolling up an aluminum foil, using the above-mentioned rolling up device for aluminum foil, comprising the following steps: S10, a winding drum is sleeved on the winding roller 320 on the side close to the feeding mechanism 200 in the first direction, and the winding roller 320 is driven to rotate around its own axis to wind up the aluminum foil 400; S20, a winding drum is put on the winding roller 320 of the unwound aluminum foil 400, and the rotating frame 310 is driven to rotate in the second direction, so that the winding roller 320 of the unwound aluminum foil 400 is located on the side of the winding roller 320 of the wound aluminum foil 400 close to the feeding mechanism 200 in the first direction; S30, starting the cutting component 330 on the reel 320 of the unreeled aluminum foil 400 to separate the aluminum foil 400 between the reel 320 of the reeled aluminum foil 400 and the reel 320 of the unreeled aluminum foil 400, and simultaneously starting the suction component on the reel 320 to provide negative pressure to the separation of the aluminum foil 400; S40, driving the winding roller 320 of the unwound aluminum foil 400 to rotate around its own axis to wind up the aluminum foil 400.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A winding device for aluminum foil, characterized in that: It includes a bracket, a feeding mechanism and a winding mechanism; the feeding mechanism is installed on the bracket and can convey the aluminum foil to be wound, the conveying direction of the aluminum foil is called the first direction, and the first direction is the horizontal direction; the winding mechanism is installed on the bracket, the winding mechanism includes a rotating frame and two winding rollers, the rotating frame can be rotatably installed on the bracket around a second direction, the second direction is horizontal and perpendicular to the first direction; the two winding rollers are both arranged along the second direction and are both installed on the rotating frame, the two winding rollers can rotate with the rotating frame and can rotate around their own axes; the two winding rollers are both sleeved with a winding drum, each winding roller is provided with a cutting component and a suction component, the cutting component can separate the aluminum foil between the winding roller that has been wound up and the winding roller that has not been wound up, and the suction component can provide negative pressure to the separation of the aluminum foil.

2. A winding device for aluminum foil according to claim 1, characterized in that: The cutting assembly includes a first push rod, which is arranged on the winding roller and can move relative to the winding roller along a third direction, the third direction being the radial direction of the winding roller, the side close to the central axis of the winding roller along the third direction being called inner, and the side away from the central axis of the winding roller being called outer, a plurality of first push pins are arranged on the first push rod, and the plurality of first push pins are arranged in sequence on the first push rod along the second direction, the first push pin is located on the outer side of the first push rod, and the first push pin is a conical structure with a small outer end and a large inner end; in an initial state, the first push pin is retracted into the winding roller; and when the first push pin extends out of the winding roller, the first push pin is arranged vertically and perpendicular to the aluminum foil arranged along the first direction.

3. A winding device for aluminum foil according to claim 2, characterized in that: The suction assembly includes an air pump, which is installed on a rotating frame. A main airway and multiple branch airways are opened on the first push rod. The main airway is arranged along the second direction, and the branch airway is arranged along the third direction. The multiple branch airways are arranged in a one-to-one correspondence with the multiple first push pins. The two ends of the branch airway along the third direction are respectively called the first end and the second end. The first end of each branch airway is connected to the main airway, and the second end of each branch airway is connected to the outside world through the corresponding first push pin. The air pump is connected to the main airway, and the air pump can draw air from the main airway.

4. A winding device for aluminum foil according to claim 3, characterized in that: Each winding roller is also provided with a second push rod, and the second push rod can move along a third direction relative to the winding roller, and the first push rod and the second push rod are sequentially arranged in the rotation direction of the winding roller, and in the rotation direction of the winding roller, the first push rod is located in front of the second push rod; a plurality of second push pins are arranged on the second push rod, and the plurality of second push pins are sequentially arranged on the second push rod along the second direction, and the second push pin is located outside the second push rod, and in an initial state, the second push pin is retracted into the winding roller; a size of the second push pin in the third direction is smaller than a size of the first push pin in the third direction, and a size of the second push rod in the third direction is equal to a size of the first push rod in the third direction, and when When the first ejector pin extends out of the winding roller, it can drive the second ejector pin to extend synchronously. When the second ejector pin is retracted into the winding roller, the second end of the branch airway on the first ejector pin is still between the aluminum foil and the winding roller. A main glue spraying channel and multiple branch glue spraying channels are provided on the second ejector pin. The main glue spraying channel is arranged along the second direction, and the branch glue spraying channel is arranged along the third direction. The multiple branch glue spraying channels are arranged in a one-to-one correspondence with the multiple second ejectors. One end of each branch glue spraying channel along the third direction is connected to the main glue spraying channel, and the other end of each branch glue spraying channel along the third direction is connected to the outside through the corresponding second ejector pin. A glue filling pump is provided on the rotating frame, and the glue filling pump is connected to the main glue spraying channel.

5. A winding device for aluminum foil according to claim 4, characterized in that: A main oil channel and multiple branch oil channels are provided on the winding roller, the main oil channel is arranged along the second direction, the branch oil channels are arranged along the third direction and are connected with the main oil channel, an oil distribution ring is provided on the rotating frame, the oil distribution ring can supply oil to the main oil channel or draw oil from the main oil channel; an oil chamber is provided on the winding roller, the oil chamber is connected with the multiple branch oil channels, a control block is provided in the oil chamber, the control block can be movably installed in the oil chamber along the third direction, a first magnet is provided on the control block, and second magnets are provided on the first push rod and the second push rod, and the first magnet can be attracted to the second magnet.

6. A winding device for aluminum foil according to claim 1, characterized in that: The bracket is provided with a rotating wheel which can rotate around its own axis. Each winding roller is provided with a matching wheel. The rotating frame drives the two winding rollers to rotate around the second direction so that any matching wheel can rotate to engage with the rotating wheel.

7. The winding device for aluminum foil according to claim 1, characterized in that: A plurality of pushing members are arranged on the winding roller, and the plurality of pushing members are arranged in sequence along the second direction on the winding roller. The pushing members include a plurality of pushing blocks, and the plurality of pushing blocks are evenly distributed around the second direction on the winding roller, and the plurality of pushing blocks can move along a third direction on the winding roller, and the third direction is the radial direction of the winding roller.

8. A winding device for aluminum foil according to claim 7, characterized in that: The winding roller includes a center column and a column shell. The center column is coaxially arranged with the column shell. The column shell is sleeved with the center column. The center column can move in a second direction relative to the column shell, and the center column can rotate synchronously with the column shell around the second direction. Multiple pushing blocks of the pushing member are installed in the column shell through a first elastic member, and the first elastic member is arranged along a third direction. Multiple first wedge surfaces are arranged on the center column along the second direction, and the first wedge surfaces are arranged on the center column around the second direction, and each first wedge surface is arranged corresponding to a pushing member, and when the center column moves in the second direction relative to the column shell, the center column can prompt multiple pushing blocks to move along the third direction.

9. The winding device for aluminum foil according to claim 1, characterized in that: The feeding mechanism comprises a feed roller, a guide roller, a transmission roller and a pressure roller; the feed roller, the guide roller, the transmission roller and the pressure roller are all arranged on a bracket and can rotate around their own axes, the feed roller, the guide roller and the transmission roller are arranged in sequence in a first direction, and the feed roller is located on a side of the transmission roller away from the winding roller in the first direction; the pressure roller and the transmission roller are arranged in sequence in a vertical direction, and a limiting space is defined between the pressure roller and the transmission roller; the aluminum foil to be wound around the feed roller, one end of the aluminum foil is pulled out from the feed roller, and after passing through the guide roller and the limiting space, it is wound around the winding roller on the side close to the transmission roller along the first direction.

10. A method for winding aluminum foil, using the winding device for aluminum foil according to any one of claims 1 to 9, characterized in that: The following steps are involved: S10, sleeve a winding drum on the winding roller on the side close to the feeding mechanism in the first direction, and drive the winding roller to rotate around its own axis to wind up the aluminum foil; S20, putting a winding drum on the winding roller of the unwound aluminum foil, and driving the rotating frame to rotate in the second direction, so that the winding roller of the unwound aluminum foil is located on the side of the winding roller of the wound aluminum foil close to the feeding mechanism in the first direction; S30, starting the cutting component on the winding roller of the unwound aluminum foil to separate the aluminum foil between the winding roller of the rolled aluminum foil and the winding roller of the unwound aluminum foil, and synchronously starting the suction component on the winding roller to provide negative pressure to the separation of the aluminum foil; S40, driving the winding roller of the unwound aluminum foil to rotate around its own axis to wind the aluminum foil.

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