A glue-spinning device with defect detection function for swab flocking equipment

Abstract

The present invention relates to the technical field of glue-spinning technology before swab flocking, specifically a glue-spinning device with a defect detection function for swab flocking equipment, the glue-spinning device includes a frame, a centrifugal block, a material tray, and a glue-joining baffle. The frame is arranged on a horizontal track, the centrifugal block is movably installed on the frame, the material tray is installed at the lower end of the centrifugal block, the glue-joining baffle is arranged below the frame and is located on one side of the horizontal sliding path of the frame, the centrifugal block has a rotation drive, and the workpiece swab is fixed vertically downward on the material tray. The image recognition module identifies the workpiece swab with defects in appearance, reminds the staff to remove it in time or equips it with a structure such as a manipulator for automatic removal. By changing the placement posture of the workpiece swab, the length direction of the swab is perpendicular to the rotation plane during centrifugal motion, which promotes the uniformity of the circumferential distribution of glue on the swab rod, and it is not easy to gather at the end of the swab.

Description

Technical Field

[0001] The invention relates to the technical field of glue-spinning technology before swab flocking, in particular to a glue-spinning device with a defect detection function for swab flocking equipment. Background Art

[0002] The traditional swab glue throwing method is to fix the swab on a rod in turn, and then the rod rotates. The length direction of the swab is the radial direction of the swab when it rotates. The glue on the swab is centrifugally swung, and the excess glue is thrown out at the end of the swab. The glue only migrates and is evenly distributed along the length direction of the swab. In the circumferential direction of the swab itself, the glue is transferred by its own viscosity, etc. The centrifugal glue throwing process does not promote the uniformity of glue distribution in the circumferential direction of the swab itself. Moreover, the swab obtained by this centrifugal method has more glue gathered at the end and less glue at the inner position. After the swab reaches the flocking process and is flocked, the head density is significantly greater than the density of the villi slightly inside, and the quality needs to be improved.

[0003] In addition, the existing glue-spinning equipment generally only performs a simple centrifugation process, and the uniformity of glue distribution on the swab is not tested after the glue-spinning is completed. Some swabs may have size defects and significantly too much or too little glue. If such swabs enter the subsequent flocking stage, the subsequent process costs will be wasted. Therefore, defective swabs need to be removed in time. Summary of the invention

[0004] The object of the present invention is to provide a glue-spinning device with a defect detection function for a swab flocking device, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A glue-spinning device with a defect detection function for a swab flocking device comprises a frame, a centrifugal block, a material tray, and a glue-joining baffle. The frame is arranged on a horizontal track, the centrifugal block is movably mounted on the frame, the material tray is mounted at the lower end of the centrifugal block, the glue-joining baffle is arranged below the frame and on one side of the horizontal sliding path of the frame, the centrifugal block has a rotation drive, and a workpiece swab is fixed vertically downward on the material tray.

[0007] A workpiece swab to be glued is fixed on the material tray. Before the glue is thrown, the end of the workpiece swab has been coated with a layer of glue in the previous process. The present application changes the placement posture of the workpiece swab so that when it is centrifuged, the length direction of the swab's own rod is perpendicular to the direction of centrifugal motion, and the glue at the end of the swab is thrown out radially along the swab rod to prevent it from gathering at the end of the swab. In addition, during the glue throwing process, the glue will also migrate in the circumferential direction of the swab.

[0008] The glue-spinning device also includes an image recognition module, which is arranged on both sides of the end of the frame guide rail. The image recognition module takes a photo to identify the appearance of the workpiece swab and gives a pass signal.

[0009] The image recognition module identifies workpiece swabs with defects in appearance and reminds the staff to remove them in time or equip them with structures such as manipulators for automatic removal.

[0010] The centrifugal block revolves and rotates simultaneously, the revolution and rotation axes of the centrifugal block are both vertical, the material tray is circular, the center of the material tray is passed through the rotation axis of the centrifugal block, and the workpiece swabs fixed on the material tray are distributed and fixed around the circumference of the material tray.

[0011] The glue-spinning device also includes a revolution lever, a rotation lever, a revolution motor, and a rotation motor, and the centrifugal block includes a column, a rotation gear, and a rotating seat;

[0012] A self-rotating gear is arranged on the upper part of the column, and a swivel seat is arranged on the lower part of the column. The swivel seat is slidably installed in the frame.

[0013] The rotation motor is arranged in the middle position of the frame, and a rotation lever is arranged downwardly from the rotation motor. The revolution lever comprises a sleeve, a relay gear and a shifting sleeve. The sleeve is sleeved on the outer layer of the rotation lever, and a relay gear is arranged on the outer surface of the upper part of the sleeve. The relay gear is meshed with the lower end of the revolution motor for transmission. The shifting sleeve is radially extended from the lower part of the sleeve, and the end of the shifting sleeve is sleeved on the upper end of the column. The gear arranged on the rotation lever is meshed with the rotation gear for transmission.

[0014] The revolution lever is mounted on the outside of the rotation lever. The revolution lever is driven by the revolution motor to rotate around the rotation lever. The sleeve pulls the upper end of the column to rotate as well, allowing the column to obtain the revolution speed. The rotation lever is located on the axis of the revolution and rotation system. The rotation lever is driven by the rotation motor to rotate. The rotation lever drives the rotation gear to make the centrifugal block rotate around the axis of the column as a whole. It should be noted that the rotation speed of the column is affected by the meshing transmission ratio of the rotation lever and the rotation gear as well as the revolution speed.

[0015] The material tray includes a hanger and a fixed plate, and the centrifugal block also includes a hanger rod and a pin. The hanger rod is arranged downward in the center of the lower surface of the swivel seat, and the hanger passes through the hanger rod horizontally. A pin with elastic locking is vertically arranged on the side of the hanger rod. An inclined groove corresponding to the pin is provided on the upper surface of the hanger. A fixed plate is arranged at the lower end of the hanger, and a swab of the workpiece to be spun is fixed on the lower surface of the fixed plate.

[0016] The material tray can be removed from the suspension rod by pushing the latch upwards, so as to load and unload the workpiece before and after the glue is thrown. In addition, the fixed locking direction of the material tray and the centrifugal block cannot be in the horizontal direction to prevent loosening during the centrifugal process.

[0017] A plurality of rolling balls are embedded in the lower surface of the swivel seat, a support plate is arranged on the lower surface of the rotation lever, and the swivel seat is in rolling contact with the frame and the upper surface of the support plate respectively.

[0018] The swivel seat is supported by rolling on both sides to improve movement stability and prevent deflection.

[0019] Permanent magnets with opposite magnetic properties are arranged under the frame and on the lower surface of the support plate respectively. The glue-spinning device also includes a charged structure. When the frame is located at the beginning of the guide rail path, the charged structure emits electrons to the glue on the workpiece swab.

[0020] The electrons emitted by the charged structure contact the glue and adhere to the glue. In the subsequent process, when the workpiece swab rotates, the charges on the workpiece swab are also affected by the vertical magnetic field and have horizontal force, which can be used to throw glue or promote the migration of glue in the circumferential direction of the swab in conjunction with the ion force. The charged structure can be, for example, a cathode tube structure, which continuously emits electrons into space in a specific direction.

[0021] The centrifugal block has opposite directions of revolution and rotation, and the magnetic field direction of the permanent magnet is to exert a force inward on the electrons on the workpiece swab in the direction of the rotation circle.

[0022] The opposite direction of rotation can obtain a smaller absolute linear velocity at the outer limit position and a larger absolute linear velocity at the inner limit position. The force on the charge depends on the charge amount, speed and magnetic field. The force exerted by the magnetic field on the moving charge can be determined by the Hall effect. I will not go into details. By matching the direction of rotation and the direction of the magnetic field, the glue at the inner limit position can be subjected to a larger electromagnetic force toward the center of rotation, thereby promoting the reflux migration effect of the glue on the workpiece swab at this location.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention changes the placement posture of the workpiece swab, and the length direction of the swab is perpendicular to the rotation plane during centrifugal motion. The excess glue on the swab is thrown off in the circumferential direction, and the remaining glue is continuously subjected to the fluctuating circumferential force and migrates, thereby promoting the uniformity of the circumferential distribution of the glue on the swab rod and preventing it from gathering at the end of the swab. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the appearance of a traditional swab after the glue is thrown off;

[0026] Figure 2 This is a schematic diagram of the appearance of the workpiece after the swab glue is thrown out of the present invention;

[0027] Figure 3 This is the installation diagram of the traditional swab glue throwing;

[0028] Figure 4This is a schematic diagram of the centrifugal installation posture of the workpiece swab of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the centrifugal block and the material tray of the present invention;

[0031] Figure 7 yes Figure 6 A partial view in FIG.

[0032] Figure 8 Schematic diagram of the appearance of the revolution lever of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the frame of the present invention;

[0034] Fig.10 This is a schematic diagram of the motion force analysis of the workpiece swab of the present invention during its revolution and rotation;

[0035] In the figure: 1. frame; 2. centrifugal block; 21. column; 22. self-rotating gear; 23. swivel seat; 24. ball; 25. suspension rod; 26. latch; 3. material tray; 31. hanger; 32. fixed plate; 41. revolution lever; 411. sleeve; 412. relay gear; 413. sleeve; 42. self-rotating lever; 43. revolution motor; 44. self-rotating motor; 45. support plate; 5. glue baffle; 91. traditional swab; 92. workpiece swab. DETAILED DESCRIPTION

[0036] 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.

[0037] A glue-spinning device with a defect detection function for a swab flocking device, the glue-spinning device comprising a frame 1, a centrifugal block 2, a material tray 3, and a glue-joining baffle 5. The frame 1 is arranged on a horizontal track, the centrifugal block 2 is movably mounted on the frame 1, the material tray 3 is mounted on the lower end of the centrifugal block 2, the glue-joining baffle 5 is arranged below the frame 1 and is located on one side of the horizontal sliding path of the frame 1, the centrifugal block 2 has a rotation drive, and a workpiece swab 92 is fixed vertically downward on the material tray 3.

[0038] like Figures 1 to 5As shown, a workpiece swab 92 to be glued is fixed on the material tray 3. Before the glue is thrown, the end of the workpiece swab 92 has been coated with a layer of glue in the previous process. The present application changes the placement posture of the workpiece swab 92 so that when it is centrifuged, the length direction of the swab's own rod is perpendicular to the direction of centrifugal motion, and the glue at the end of the swab is thrown out radially along the swab rod to prevent it from gathering at the end of the swab. In addition, during the glue throwing process, the glue will also migrate in the circumferential direction of the swab.

[0039] The glue-spinning device also includes an image recognition module, which is arranged on both sides of the ends of the guide rails of the frame 1. The image recognition module takes a photo to identify the appearance of the workpiece swab 92 and gives a pass signal.

[0040] The image recognition module identifies the workpiece swab 92 with defective appearance, reminds the staff to remove it in time or equips a structure such as a robot to automatically remove it.

[0041] The centrifugal block 2 revolves and rotates simultaneously, the revolution and rotation axes of the centrifugal block 2 are both vertical, the material tray 3 is circular, the center of the material tray 3 is passed by the rotation axis of the centrifugal block 2, and the workpiece swab 92 fixed on the material tray 3 is distributed and fixed around the circumference of the material tray 3.

[0042] like Figure 5 , 6 As shown in 10, the centrifugal block 2 performs revolution and rotation, and the corresponding material tray 3 fixed below it also performs revolution and rotation. The workpiece swab 92 forms a ring, and the ring also performs revolution and rotation. The workpiece swab 92 located on the line connecting the centers of the revolution and rotation circles and located between the two centers is subjected to two centrifugal forces in opposite directions, that is, Fig.10 The centrifugal force L1 / L2 in the workpiece swab, which is on the line connecting the centers of the revolution and rotation circles and outside the two centers, is in the same direction. Fig.10 The centrifugal force L1' / L2' in the centrifugal force, the state of the centrifugal force on the glue on the rest of the workpiece swab 92 is between these two limit states. The difference in the superposition of centrifugal forces is that the glue on the workpiece swab 92 is subjected to a larger force in a local range. It is only necessary to set a glue baffle 5 on the outer side to receive a large amount of glue to be recycled. In addition, during one rotation of the workpiece swab 92 around the rotation axis of the centrifugal block 2, the force on the glue fluctuates in the circumferential direction of the swab itself, which can produce bidirectional migration of the glue and promote the uniform distribution of the glue at the end of the swab rod.

[0043] The glue-spinning device further includes a revolution lever 41, a rotation lever 42, a revolution motor 43, and a rotation motor 44. The centrifugal block 2 includes a column 21, a rotation gear 22, and a rotary seat 23.

[0044] A self-rotating gear 22 is disposed on the upper portion of the column 21, and a swivel seat 23 is disposed on the lower portion of the column 21. The swivel seat 23 is slidably mounted in the frame 1.

[0045] The rotation motor 44 is arranged in the middle position of the frame 1, and the rotation lever 42 is arranged downwardly of the rotation motor 44. The revolution lever 41 includes a sleeve 411, a relay gear 412, and a sleeve 413. The sleeve 411 is sleeved on the outer layer of the rotation lever 42, and the relay gear 412 is arranged on the upper surface of the sleeve 411. The relay gear 412 is meshed with the lower end of the revolution motor 43 for transmission. The sleeve 411 radially extends out of the sleeve 413 at the lower part, and the end of the sleeve 413 is sleeved on the upper end of the column 21. The rotation lever 42 is provided with a gear that meshes with the rotation gear 22 for transmission.

[0046] like Figure 5 , 6 As shown in Figure 8, the revolution lever 41 is sleeved on the outside of the rotation lever 42. The revolution lever 41 is driven by the revolution motor 43 to rotate around the rotation lever 42. The sleeve 413 pulls the upper end of the column 21 to rotate as well, so that the column 21 obtains the revolution speed W1. The rotation lever 42 is located on the axis of the revolution and rotation system. The rotation lever 42 is driven by the rotation motor 44 to rotate. The rotation lever 42 drives the rotation gear 22 to make the centrifugal block 2 rotate as a whole around the axis of the column 21. It should be noted that the rotation speed W2 of the column 21 is jointly affected by the meshing transmission ratio between the rotation lever 42 and the rotation gear 22 and the revolution speed W1.

[0047] The material tray 3 includes a hanger 31 and a fixed plate 32, and the centrifugal block 2 also includes a hanger 25 and a pin 26. The hanger 25 is arranged downward in the center of the lower surface of the swivel seat 23, and the hanger 31 passes through the hanger 25 horizontally. The pin 26 with elastic locking is vertically arranged on the side of the hanger 25. The upper surface of the hanger 31 has an inclined groove corresponding to the pin 26. The fixed plate 32 is arranged at the lower end of the hanger 31, and the lower surface of the fixed plate 32 is fixed with a workpiece swab 92 to be spun.

[0048] like Figure 6 , 7 As shown, by pushing the latch 26 upward, the material tray 3 can be removed from the suspension rod 25, so as to realize loading and unloading of workpieces before and after spinning. In addition, the fixing locking direction of the material tray 3 and the centrifugal block 2 cannot be in the horizontal direction to prevent loosening caused by the centrifugal process.

[0049] A plurality of rolling balls 24 are embedded in the lower surface of the rotary seat 23 , a support plate 45 is arranged on the lower surface of the rotation lever 42 , and the rotary seat 23 is in rolling contact with the frame 1 and the upper surface of the support plate 45 , respectively.

[0050] The swivel seat 23 is supported by rolling on both sides to improve the movement stability and prevent deflection.

[0051] Permanent magnets with opposite magnetic properties are respectively arranged below the frame 1 and on the lower surface of the support plate 45. The glue-spinning device also includes a charged structure. When the frame 1 is located at the beginning of the guide path, the charged structure emits electrons to the glue on the workpiece swab 92.

[0052] The electrons emitted by the charged structure contact the glue and adhere to the glue. In the subsequent process, when the workpiece swab 92 rotates, the charges on the workpiece swab 92 are also affected by the vertical magnetic field and have a horizontal force, which can be used to throw the glue or promote the migration of the glue in the circumferential direction of the swab in conjunction with the ion force. The charged structure can be, for example, a cathode tube structure, which continuously emits electrons into space in a specific direction.

[0053] The centrifugal block 2 has opposite directions of revolution and rotation, and the magnetic field direction of the permanent magnet is to exert a force inward on the electrons on the workpiece swab 92 in the rotation circle.

[0054] like Figure 5 , 10 As shown, the opposite directions of revolution and rotation can obtain a smaller absolute linear velocity V1'-V2' at the outer limit position, and a larger absolute linear velocity V1+V2 at the inner limit position. The force on the charge depends on the charge amount, speed and magnetic field. The force exerted by the magnetic field on the moving charge can be determined by the Hall effect, which will not be elaborated. By matching the revolution and rotation directions and the magnetic field directions, the glue at the inner limit position can be subjected to a larger electromagnetic force FD toward the center of the rotation circle, thereby promoting the reflux migration effect of the glue on the workpiece swab 92 at this location.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A glue-spinning device with defect detection function for swab flocking equipment, characterized in that: The glue-spinning device comprises a frame (1), a centrifugal block (2), a material tray (3), and a glue-joining baffle (5); the frame (1) is arranged on a horizontal track; the centrifugal block (2) is movably mounted on the frame (1); the material tray (3) is mounted at the lower end of the centrifugal block (2); the glue-joining baffle (5) is arranged below the frame (1) and is located on one side of a horizontal sliding path of the frame (1); the centrifugal block (2) has a rotation drive; and a workpiece swab (92) is fixed vertically downward on the material tray (3).

2. The glue-spinning device with defect detection function for swab flocking equipment according to claim 1, characterized in that: The glue-spinning device also includes an image recognition module, which is arranged on both sides of the end of the guide rail of the frame (1). The image recognition module takes a photo to identify the appearance of the workpiece swab (92) and gives a pass signal.

3. The glue-spinning device with defect detection function for swab flocking equipment according to claim 1, characterized in that: The centrifugal block (2) simultaneously performs revolution and rotation, the revolution and rotation axes of the centrifugal block (2) are both vertical, the material tray (3) is circular, the center of the material tray (3) is passed through by the rotation axis of the centrifugal block (2), and the workpiece swabs (92) fixed on the material tray (3) are distributed and fixed around the circumference of the material tray (3).

4. The glue-spinning device with defect detection function for swab flocking equipment according to claim 3 is characterized in that: The rubber-spinning device further comprises a revolution lever (41), a rotation lever (42), a revolution motor (43), and a rotation motor (44); and the centrifugal block (2) comprises a column (21), a rotation gear (22), and a rotary seat (23); A self-rotating gear (22) is disposed on the upper portion of the column (21), a swivel seat (23) is disposed on the lower portion of the column (21), and the swivel seat (23) is slidably mounted in the frame (1). The self-rotating motor (44) is arranged at the middle position of the frame (1), and a self-rotating lever (42) is arranged downwardly of the self-rotating motor (44). The revolving lever (41) comprises a sleeve (411), a relay gear (412), and a shifting sleeve (413). The sleeve (411) is sleeved on the outer layer of the self-rotating lever (42), and a relay gear (412) is arranged on the upper surface of the sleeve (411). The relay gear (412) meshes with the lower end of the revolving motor (43) for transmission. The lower part of the sleeve (411) radially extends out of the shifting sleeve (413), and the end of the shifting sleeve (413) sleeves the upper end of the column (21). The self-rotating lever (42) is provided with a gear for meshing with the self-rotating gear (22) for transmission.

5. The glue-spinning device with defect detection function for swab flocking equipment according to claim 4, characterized in that: The material tray (3) comprises a hanger (31) and a fixed plate (32); the centrifugal block (2) also comprises a hanger rod (25) and a latch (26); a hanger rod (25) is arranged downward at the center of the lower surface of the rotary seat (23); the hanger (31) passes through the hanger rod (25) horizontally; a latch (26) with elastic locking is arranged vertically on the side of the hanger rod (25); an oblique groove corresponding to the latch (26) is arranged on the upper surface of the hanger (31); a fixed plate (32) is arranged at the lower end of the hanger (31); a workpiece swab (92) to be spun is fixed on the lower surface of the fixed plate (32).

6. The glue-spinning device with defect detection function for swab flocking equipment according to claim 4, characterized in that: A plurality of rolling balls (24) are embedded in the lower surface of the rotating seat (23), a support plate (45) is arranged on the lower surface of the self-rotating lever (42), and the rotating seat (23) is in rolling contact with the upper surface of the frame (1) and the support plate (45) respectively.

7. The glue-spinning device with defect detection function for swab flocking equipment according to claim 6, characterized in that: Permanent magnets with opposite magnetic properties are respectively arranged below the frame (1) and on the lower surface of the support plate (45). The glue-spinning device also includes a charged structure. When the frame (1) is located at the beginning of the guide rail path, the charged structure emits electrons to the glue on the workpiece swab (92).

8. The glue-spinning device with defect detection function for swab flocking equipment according to claim 7, characterized in that: The centrifugal block (2) has opposite directions of revolution and rotation, and the magnetic field direction of the permanent magnet is to exert a force inward on the electrons on the workpiece swab (92) in the rotation circle.

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