Automatic surface mounting device

Abstract

The utility model provides an automatic chip mounting device. The automatic chip mounting device comprises a rotary drum rotationally arranged above a base material, a vacuum generation assembly communicated with the interior of the rotary drum, and a plurality of feeding assemblies; the rotary drum is in transmission connection with a rotation driving component, a plurality of groups of through holes are formed in the rotary drum at intervals in the axial direction, and each group of through holes comprises a plurality of through holes surrounding the rotary drum; the multiple sets of feeding assemblies correspond to the multiple sets of through holes in a one-to-one mode, and each set of feeding assembly is used for containing and discharging a magnet piece to any corresponding through hole so that the through hole can attract the magnet piece through the negative pressure environment in the rotary drum, and the magnet piece can be connected with the pasting face of the base material along with rotation of the rotary drum. Therefore, the magnet sheet gets rid of the suction force generated by the negative pressure environment, and the pasting operation of the magnet sheet is completed. According to the automatic chip mounting device provided by the invention, an automatic chip mounting process can be realized, and the chip mounting efficiency and the finished product effect are ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of plaster processing, and specifically relates to an automatic patch device. Background Art

[0002] In order to achieve the purpose of promoting blood circulation, relieving pain, protecting the skin and producing magnetic therapy effects, a magnet sheet is usually attached to the inner layer of the plaster base material, and the magnet sheet is kept away from the medicine setting on the adhesive layer.

[0003] In the prior art, the pasting of magnet sheets is usually done manually. Specifically, the inner layer of the substrate is pre-processed as an adhesive layer, and the substrate moves horizontally under the pulling of a traction device; when the substrate moves to the pasting area, the staff presses the magnet sheet onto the surface of the adhesive layer.

[0004] The inventors found that the efficiency of existing patch operations is affected by the proficiency of the workers, and it is difficult to ensure that the magnet sheets can be pasted on the adhesive layer in a timely and accurate manner, resulting in technical defects such as unstable patch efficiency and product quality. Utility Model Content

[0005] The embodiment of the present application provides an automatic patch device, which aims to realize an automated patch process and ensure patch efficiency and finished product effect.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] An automatic patch device is provided, comprising:

[0008] A rotating drum is arranged directly above the substrate, with its axial direction perpendicular to the translational direction of the substrate, and the rotating drum can rotate relative to the substrate with its own central axis as the axis, and is also connected to a rotating driving member; the rotating drum adopts an internal hollow structure, and has a plurality of groups of through holes arranged at intervals along the axial direction, and each group of through holes includes a plurality of through holes arranged at intervals along the circumference of the rotating drum;

[0009] a vacuum generating assembly, connected to the interior of the drum, for forming a negative pressure environment inside the drum; and

[0010] A plurality of groups of feeding components are arranged above the rotating drum at intervals along the left-right direction and correspond one by one to the plurality of groups of through holes;

[0011] Among them, each group of the loading components is used to accommodate and discharge the magnet sheets downward, so that when the vacuum generating component forms a negative pressure environment inside the rotating drum, the magnet sheets can be adsorbed on the through holes; and when the rotating drum rotates until the magnet sheets contact the substrate, the substrate can be connected to the magnet sheets through the adhesive layer to enable the magnet sheets to detach from the through holes.

[0012] In a possible implementation, the automatic patch device further includes:

[0013] A mounting plate for being fixed on the outer side of the base material, and the direction of the mounting plate facing the base material is perpendicular to the translational direction of the base material;

[0014] Wherein, the rotating cylinder is connected to the mounting plate through an adjusting mechanism, so that the rotating cylinder can move relative to the mounting plate in the up-down direction and the left-right direction, and can also rotate about its own central axis;

[0015] Moreover, multiple groups of the feeding components are connected to the adjusting mechanism through a connecting plate, so that when the rotating cylinder moves relative to the mounting plate in the up-down direction and the left-right direction, each group of the feeding components moves synchronously.

[0016] In a possible implementation, the adjusting mechanism includes:

[0017] A lifting member having an L-shaped cross-section; the lifting member is slidably arranged on the side of the mounting plate facing the base material in the up-down direction, and has a first locking structure with the mounting plate; and

[0018] A sliding member is slidably connected to the lifting member along the direction of the mounting plate facing the base material, and has a second locking structure with the lifting member;

[0019] Wherein, the rotating cylinder is rotatably connected to the sliding member, and the rotation driving member is connected to the sliding member, so that when the sliding member moves towards or away from the base material, the rotation driving member is in transmission connection with the rotating cylinder; and the connecting plate is connected to the sliding member to synchronize the movement of the rotating cylinder and the feeding components.

[0020] In a possible implementation, the first locking structure includes:

[0021] A first strip-shaped hole is opened on the lifting member, and penetrates along the direction facing the base material and extends in the up-down direction;

[0022] A first locking groove is opened on the mounting plate and is communicated with the first strip-shaped hole; and

[0023] A first stop member is adapted to be inserted into the first strip-shaped hole and is connected to the first locking groove;

[0024] Wherein, when the first stop member is connected to the first locking groove, the first stop member is also in contact with the lifting member to limit the longitudinal movement of the lifting member relative to the mounting plate.

[0025] In a possible implementation, the second locking structure includes:

[0026] A second strip-shaped hole is formed in the lifting member, penetrating in the up-and-down direction and extending in the direction towards the base material;

[0027] A second locking groove is formed in the sliding member and communicates with the second strip-shaped hole; and

[0028] A second stopper is adapted to be inserted into the second strip-shaped hole and is connected to the second locking groove;

[0029] Wherein, when the second stopper is connected to the second locking groove, the second stopper is also in contact with the lifting member to limit the relative movement of the lifting member and the sliding member in the direction towards the base material.

[0030] In a possible implementation, the mounting plate further has a fixing plate located above the lifting member; the fixing plate is provided with a cantilever extending in the up-and-down direction, and the lower end of the cantilever is adapted to be connected to the lifting member.

[0031] In a possible implementation, the rotation driving member is a rotation motor slidably arranged on the mounting plate in the up-and-down direction; the power output end of the rotation motor faces the base material, and the power output shaft of the rotation motor is coaxially connected to the rotating cylinder.

[0032] In a possible implementation, the rotating cylinder has a plurality of protruding portions corresponding to the plurality of groups of through holes one by one; each of the protruding portions extends along the circumferential direction of the rotating cylinder and is connected end to end, and each corresponding through hole is formed on the protruding portion.

[0033] In a possible implementation, the feeding assembly includes:

[0034] A positioning member for being fixed above the rotating cylinder; and

[0035] An alignment tube is slidably arranged on the positioning member in the up-and-down direction and is adapted to be connected to the positioning member;

[0036] Wherein, the axis of the alignment tube is parallel to the up-and-down direction, and its interior is used for accommodating stacked magnet sheets;

[0037] By moving the alignment tube relative to the positioning member, the magnet sheet extending out from the lower end of the alignment tube can be brought into contact with the outer peripheral wall of the rotating cylinder and is also adapted to be connected to the through hole.

[0038] In a possible implementation, the positioning member is a nut, and the outer peripheral wall of the alignment tube has an external thread structure threadedly connected to the nut.

[0039] In the embodiments of the present application, by driving the rotating cylinder to rotate through the rotating driving member, any one of the through holes in each group can be set upward; based on this, under the action of multiple feeding assemblies, multiple magnet sheets can be respectively dropped into the multiple upwardly arranged through holes, so as to adsorb the magnet sheets through the negative pressure environment generated by the vacuum generating assembly, and finally the magnet sheets are driven by the rotating cylinder to move to the adhesive layer of the substrate; subsequently, the substrate moves translationally, overcoming the suction force generated by the aforementioned vacuum environment, and taking the magnet sheets away from the rotating cylinder to complete the pasting operation of the magnet sheets.

[0040] Compared with the prior art, the automatic pasting device provided in this embodiment can realize an automated pasting process, ensuring the pasting efficiency and the finished product effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] Figure 1 It is a schematic three-dimensional structure diagram of the automatic pasting device provided in the embodiments of the present application;

[0043] Figure 2 It is a schematic cross-sectional structure diagram of the automatic pasting device provided in the embodiments of the present application;

[0044] Figure 3 is Figure 2 A partial enlarged schematic diagram at the upper circle A;

[0045] Figure 4 It is an exploded structure diagram of the feeding assembly adopted in the embodiments of the present application;

[0046] Figure 5 It is a partial enlarged schematic diagram of the rotating cylinder adopted in the embodiments of the present application;

[0047] Figure 6 It is an exploded structure diagram of the second locking structure adopted in the embodiments of the present application;

[0048] Figure 7 It is an exploded structure diagram of the first locking structure adopted in the embodiments of the present application;

[0049] Description of the reference numerals: 1. Rotary drum; 11. Through hole; 12. Protrusion; 2. Vacuum generating assembly; 3. Loading assembly; 31. Positioning member; 32. Alignment tube; 4. Rotating drive member; 5. Adjusting mechanism; 51. Lifting member; 52. Sliding member; 6. First locking structure; 61. First strip-shaped hole; 62. First locking groove; 63. First stopper; 7. Second locking structure; 71. Second strip-shaped hole; 72. Second locking groove; 73. Second stopper; 10. Mounting plate; 101. Fixed plate; 102. Cantilever; 20. Connecting plate; 100. Magnet sheet; 200. Substrate. Detailed implementation manners

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0052] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0053] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0054] Please refer to Figures 1 to 7 , and now the automatic pasting device provided by the present application will be described. The automatic pasting device proposed by the present application includes a rotary drum 1, a vacuum generating assembly 2 and multiple groups of loading assemblies 3.

[0055] The rotating cylinder 1 is used to be arranged directly above the substrate 200, with the axial direction of the rotating cylinder 1 perpendicular to the translational direction of the substrate 200; in this embodiment, for the convenience of description, the translational direction of the substrate 200 is defined as from back to front, and correspondingly, the axial direction of the rotating cylinder 1 is parallel to the left - right direction.

[0056] In this embodiment, the rotating cylinder 1 can rotate about its own central axis relative to the substrate 200, and this rotating cylinder 1 is also drivingly connected to a rotating driving member 4 for providing driving force.

[0057] The rotating cylinder 1 adopts a hollow structure inside; moreover, multiple groups of through - holes 11 are arranged on the rotating cylinder 1 at intervals along the axial direction, and each group of through - holes 11 includes a plurality of through - holes 11 arranged at intervals along the circumferential direction of the rotating cylinder 1.

[0058] The vacuum generating assembly 2 is communicated with the inside of the rotating cylinder 1 to evacuate the gas inside the rotating cylinder 1 and create a negative - pressure environment inside the rotating cylinder 1, so as to adsorb the complex connected to any one of the through - holes 11.

[0059] Multiple groups of feeding assemblies 3 are arranged above the rotating cylinder 1 at intervals along the left - right direction and correspond to the multiple groups of through - holes 11 one by one; in actual use, each group of feeding assemblies 3 is used to accommodate and discharge the magnet sheets 100 downward, so that when the vacuum generating assembly 2 creates a negative - pressure environment inside the rotating cylinder 1, the magnet sheets 100 can be adsorbed at the through - holes 11; and when the rotating cylinder 1 rotates to make the magnet sheets 100 contact the substrate 200, the substrate 200 can be connected to the magnet sheets 100 through the adhesive layer, so that the magnet sheets 100 are separated from the through - holes 11.

[0060] In the embodiment of the present application, by driving the rotating cylinder 1 to rotate through the rotating driving member 4, any one of the through - holes 11 in each group of through - holes 11 can be set upward; based on this, under the action of the multiple groups of feeding assemblies 3, multiple magnet sheets 100 can fall into the multiple upward - set through - holes 11 one by one, so as to adsorb the magnet sheets 100 through the negative - pressure environment generated by the vacuum generating assembly 2, and finally make the magnet sheets 100 move to the adhesive layer of the substrate 200 driven by the rotating cylinder 1; subsequently, the substrate 200 moves linearly, overcomes the suction force generated by the aforementioned vacuum environment, and takes the magnet sheets 100 away from the rotating cylinder 1, completing the patchwork operation of the magnet sheets 100.

[0061] Compared with the prior art, the automatic patching device provided in this embodiment can realize an automated patching process, ensuring the patching efficiency and the finished - product effect.

[0062] In some embodiments, as Figure 1 and Figure 2 shown, the automatic patching device further includes a mounting plate 10.

[0063] The mounting plate 10 is used to be fixed on the outer side of the base material 200, and the direction of the mounting plate 10 facing the base material 200 is perpendicular to the translational direction of the base material 200; in this embodiment, the mounting plate 10 is on the right side of the base material 200.

[0064] Wherein, the rotating cylinder 1 is connected to the mounting plate 10 through an adjusting mechanism 5, so that the rotating cylinder 1 can move relative to the mounting plate 10 in the up-and-down direction and the left-and-right direction, and can also rotate around its own central axis.

[0065] Moreover, multiple groups of feeding components 3 are connected to the adjusting mechanism 5 through a connecting plate 20, so that when the rotating cylinder 1 moves relative to the mounting plate 10 in the up-and-down direction and the left-and-right direction, each group of feeding components 3 moves synchronously under the drive of the connecting plate 20.

[0066] In some embodiments, such as Figure 1 、 Figure 2 and Figure 6 shown, the adjusting mechanism 5 includes a lifting member 51 and a sliding member 52.

[0067] The lifting member 51 adopts a structure with an L-shaped vertical cross-section; the lifting member 51 is slidably arranged on the side surface of the mounting plate 10 facing the base material 200 in the up-and-down direction, and there is a first locking structure 6 between the lifting member 51 and the mounting plate 10.

[0068] The sliding member 52 is slidably connected to the lifting member 51 in the direction of the mounting plate 10 facing the base material 200 (left-and-right direction), and there is a second locking structure 7 between the sliding member 52 and the lifting member 51.

[0069] Wherein, the rotating cylinder 1 is rotatably connected to the sliding member 52, and the rotational driving member 4 is connected to the sliding member 52, so that when the sliding member 52 moves towards or away from the base material 200, the rotational driving member 4 is in transmission connection with the rotating cylinder 1; moreover, the connecting plate 20 is connected to the sliding member 52 to synchronize the movement of the rotating cylinder 1 and the feeding components 3.

[0070] In some embodiments, such as Figure 7 shown, the first locking structure 6 includes a first strip-shaped hole 61, a first locking groove 62 and a first stop member 63.

[0071] The first strip-shaped hole 61 is opened on the lifting member 51, and penetrates in the direction facing the base material 200 and extends in the up-and-down direction.

[0072] The first locking groove 62 is opened on the mounting plate 10 and is communicated with the first strip-shaped hole 61.

[0073] The first stop member 63 is adapted to be inserted into the first strip-shaped hole 61 and is connected to the first locking groove 62.

[0074] By adopting the above technical solution, when the first stopper 63 is connected to the first locking groove 62, the first stopper 63 is also in contact with the lifting member 51 to limit the longitudinal movement of the lifting member 51 relative to the mounting plate 10 (under the action of friction).

[0075] In some embodiments, as Figure 6 shown, the second locking structure 7 includes a second slot 71, a second locking groove 72, and a second stopper 73.

[0076] The second slot 71 is formed in the lifting member 51 and extends through in the up and down direction and extends in the direction towards the substrate 200.

[0077] The second locking groove 72 is formed in the sliding member 52 and communicates with the second slot 71.

[0078] The second stopper 73 is adapted to be inserted into the second slot 71 and is connected to the second locking groove 72.

[0079] By adopting the above technical solution, when the second stopper 73 is connected to the second locking groove 72, the second stopper 73 is also in contact with the lifting member 51 to limit the relative movement of the lifting member 51 and the sliding member 52 in the direction towards the substrate 200 (under the action of friction).

[0080] In some embodiments, as Figure 1 and Figure 2 shown, the mounting plate 10 further has a fixing plate 101 above the lifting member 51; a cantilever 102 extending in the up and down direction is provided on the fixing plate 101, and the lower end of the cantilever 102 is adapted to be connected to the lifting member 51 to assist the first locking structure 6 in restricting the longitudinal position of the lifting member 51.

[0081] In this embodiment, the cantilever 102 and the fixing plate 101 are slidably connected in the up and down direction through a preset hole in the fixing plate 101, and the lower end of the cantilever 102 is threadedly connected to the lifting member 51.

[0082] In some embodiments, as Figure 1 and Figure 2 shown, the rotary driving member 4 is a rotary motor slidably arranged on the mounting plate 10 in the up and down direction; the power output end of this rotary motor faces the substrate 200, and the power output shaft of the rotary motor is coaxially connected to the rotating cylinder 1.

[0083] In this embodiment, the power output shaft of the rotary motor can make a relative movement in the left and right direction with the rotating cylinder 1, and after the relative movement, the power output shaft of the rotary motor can still drive the rotating cylinder 1 to rotate.

[0084] In some embodiments, as Figures 1 to 3As shown in the figure, the rotary drum 1 is provided with a plurality of protruding portions 12 corresponding to a plurality of groups of through holes 11 one by one; wherein, each protruding portion 12 extends along the circumferential direction of the rotary drum 1 and is connected end to end, and each corresponding through hole 11 is formed on the protruding portion 12 to reduce the contact area between the rotary drum 1 and the adhesive layer of the substrate 200, thereby avoiding the situation where the substrate 200 adheres to the surface of the rotary drum 1.

[0085] In some embodiments, as Figures 2 to 4 shown, the feeding assembly 3 includes a positioning member 31 and an alignment tube 32.

[0086] The positioning member 31 is used to be fixed above the rotary drum 1, specifically, it is fixedly connected to the connecting plate 20 above the rotary drum 1.

[0087] The alignment tube 32 is slidably arranged on the positioning member 31 in the up and down direction, and is adapted to be connected to the positioning member 31 to limit the relative movement of the alignment tube 32 relative to the positioning member 31.

[0088] In this embodiment, the axial direction of the alignment tube 32 is parallel to the up and down direction, and has a lumen penetrating in the up and down direction, and the internal lumen of the alignment tube 32 is used to accommodate a plurality of stacked magnet sheets 100.

[0089] By moving the alignment tube 32 relative to the positioning member 31, the magnet sheet 100 extending from the lower end of the alignment tube 32 can be made to abut against the outer peripheral wall of the rotary drum 1, and is also adapted to be connected to the through hole 11; and, the extended magnet sheet 100 is single, so as to avoid the situation that redundant magnet sheets 100 are removed along with the substrate 200 when the rotary drum 1 rotates.

[0090] In some embodiments, as Figure 4 shown, the positioning member 31 is a nut, and the outer peripheral wall of the alignment tube 32 has an external thread structure threadedly connected to the nut; in actual use, by rotating the alignment tube 32, the longitudinal position of the alignment tube 32 can be adjusted, and the connection relationship between the alignment tube 32 and the positioning member 31 can be adjusted.

[0091] The above content is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Automatic patch device, characterized in that, include: A rotating drum is arranged directly above the substrate, with its axial direction perpendicular to the translational direction of the substrate, and the rotating drum can rotate relative to the substrate with its own central axis as the axis, and is also connected to a rotating driving member; the rotating drum adopts an internal hollow structure, and has a plurality of groups of through holes arranged at intervals along the axial direction, and each group of through holes includes a plurality of through holes arranged at intervals along the circumference of the rotating drum; A vacuum generating assembly is communicated with the interior of the drum to form a negative pressure environment inside the drum; as well as A plurality of groups of feeding components are arranged above the rotating drum at intervals along the left-right direction and correspond one by one to the plurality of groups of through holes; Among them, each group of the loading components is used to accommodate and discharge the magnet sheets downward, so that when the vacuum generating component forms a negative pressure environment inside the rotating drum, the magnet sheets can be adsorbed on the through holes; and when the rotating drum rotates until the magnet sheets contact the substrate, the substrate can be connected to the magnet sheets through the adhesive layer to enable the magnet sheets to detach from the through holes.

2. The automatic patch device according to claim 1, characterized in that: The automatic patch device also includes: A mounting plate, used to be fixed on the outer side of the substrate, and the direction of the mounting plate toward the substrate is perpendicular to the translation direction of the substrate; The rotating drum is connected to the mounting plate through an adjusting mechanism, so that the rotating drum can move in the up-down direction and the left-right direction relative to the mounting plate, and can also rotate around its own central axis; Furthermore, a plurality of groups of the feeding components are connected to the adjusting mechanism via a connecting plate, so that when the rotating drum moves in the up-down direction and the left-right direction relative to the mounting plate, each group of the feeding components moves synchronously.

3. The automatic patch device according to claim 2, characterized in that: The regulating mechanism comprises: A lifting member having an L-shaped vertical cross section; the lifting member is slidably disposed on the side of the mounting plate facing the substrate in an up-down direction and has a first locking structure between the lifting member and the mounting plate; and A sliding member, slidably connected to the lifting member along a direction from the mounting plate toward the substrate, and having a second locking structure between the sliding member and the lifting member; Wherein, the rotating drum is rotatably connected to the sliding member, and the rotating driving member is connected to the sliding member, so that when the sliding member moves toward or away from the substrate, the rotating driving member is transmission-connected to the rotating drum; and the connecting plate is connected to the sliding member to synchronize the movement of the rotating drum and the loading assembly.

4. The automatic patch device according to claim 3, characterized in that: The first locking structure comprises: A first strip-shaped hole is formed on the lifting member, passes through the substrate in a direction toward the substrate, and extends in an up-down direction; A first locking groove is formed on the mounting plate and communicates with the first strip-shaped hole; and A first stopper, adapted to be inserted into the first strip-shaped hole and connected to the first locking groove; Wherein, when the first stopper is connected to the first locking groove, the first stopper is also connected to the lifting member to limit the longitudinal movement of the lifting member relative to the mounting plate.

5. The automatic patch device according to claim 3, characterized in that: The second locking structure comprises: A second strip-shaped hole is formed on the lifting member and penetrates in the vertical direction and extends in the direction toward the substrate; a second locking groove, formed on the sliding member and connected to the second strip-shaped hole; and A second stopper, adapted to be inserted into the second strip-shaped hole and connected to the second locking groove; Wherein, when the second stopper is connected to the second locking groove, the second stopper is also connected to the lifting member to limit the relative movement of the lifting member and the sliding member in a direction toward the substrate.

6. The automatic patch device according to claim 5, characterized in that: The mounting plate also has a fixing plate located above the lifting member; the fixing plate is provided with a cantilever extending in the up-down direction, and the lower end of the cantilever is suitable for being connected to the lifting member.

7. The automatic patch device according to claim 3, characterized in that: The rotation driving member is a rotation motor slidably arranged on the mounting plate along the up-down direction; the power output end of the rotation motor faces the substrate, and the power output shaft of the rotation motor is coaxially connected with the rotating drum.

8. The automatic patch device according to claim 1, characterized in that: The rotating drum is provided with a plurality of protrusions corresponding to the plurality of groups of through holes one by one; each of the protrusions extends along the circumference of the rotating drum and is connected end to end, and each of the corresponding through holes is opened on the protrusions.

9. The automatic patch device according to claim 1, characterized in that: The feeding assembly comprises: A positioning member, used for being fixed above the rotating drum; and An alignment tube is slidably disposed on the positioning member in an up-down direction and is suitable for being connected to the positioning member; The axial direction of the alignment tube is parallel to the up-down direction, and the interior of the alignment tube is used to accommodate the stacked magnet sheets; By moving the alignment tube relative to the positioning member, the magnet piece extending from the lower end of the alignment tube can be brought into contact with the outer peripheral wall of the rotating drum and is also suitable for contacting with the through hole.

10. The automatic patch device according to claim 9, characterized in that: The positioning member is a nut, and the outer peripheral wall of the alignment tube is provided with an external thread structure threadably connected with the nut.

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