A disc hemming machine

Abstract

The invention discloses a disc hemming machine, comprising a workbench, a controller, a cutting device for cutting flannel cloth to a fixed length, a glue spraying device for spraying glue on one side of the flannel cloth, a lifting device for wrapping the edge of the disc, a fixing device for positioning the disc, and a traction device for pulling the flannel cloth; the lifting device comprises a roller and two roller brushes, the disc can be inserted between the two roller brushes, the roller pushes the flannel cloth to make it adhere to the edge of the disc, and then the bristles of the two roller brushes push the flannel cloth to wrap the edge of the disc, because the roller and the roller brushes are both liftable and adjustable, the hemming machine can match discs of various specifications, and the bristles on the roller brushes are tough, so that the hemming machine can hem discs with uniform structures; and the hemming machine can realize the functions of cutting the flannel cloth to a fixed length, spraying glue, and automatically pulling the cloth, and can further improve the hemming efficiency.

Description

Technical Field

[0001] The invention relates to the field of packaging, and in particular to a disc edge wrapping machine. Background Art

[0002] In order to protect the surface of the disc or ring, the edge of the disc is usually covered with flannel, but the efficiency of manual hemming is low, and the positioning accuracy is poor when the flannel fits the edge of the disc. In addition, due to the variety of disc sizes, discs of different specifications require flannel of different lengths, and the flannel is coated with glue in advance to facilitate its fit with the disc. However, if a large number of flannel are uniformly coated with glue before coating, the glue on the unused flannel will gradually dry up during the hemming process, causing multiple flannels to fit together; if the flannel is coated with glue one by one, the hemming efficiency is reduced. In addition, according to product requirements, the edges of some discs are usually set with patterns, protrusions and other structures, so the structure of the disc edge will also affect the hemming effect. Summary of the invention

[0003] In order to solve the problems of low disc hemming efficiency and irregular flannel covering in the prior art, the purpose of the present invention is to provide a disc hemming machine, which can greatly improve the efficiency of disc hemming and is suitable for processing discs of various specifications and has better adaptability to the disc edge structure.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: comprising a workbench, a controller, a cutting device, a glue spraying device, a lifting device, a fixing device and a traction device; the cutting device comprises a cutting knife for cutting the flannel cloth to a fixed length; the glue spraying device comprises a glue gun for spraying glue on the flannel cloth, and the glue gun is installed on the workbench; the lifting device comprises a roller and two roller brushes, and the roller and the two roller brushes can rotate on the workbench, and the roller and the two roller brushes are installed on the workbench in a lifting manner; the fixing device comprises a disc seat for mounting a disc, and the disc seat is rotatably mounted on the workbench; the traction device comprises a traction clamp for traction of the flannel cloth, and the traction clamp is slidably mounted on the workbench;

[0005] Among them, the cutting knife, glue gun and disc seat are arranged in sequence from left to right, the roller and two roller brushes are all located below the disc seat, the roller is located on the left side of the roller brush, and the two roller brushes are arranged front and back, the traction clamp can slide left and right below the cutting knife, glue gun and disc seat, the traction clamp can pull the flannel cloth to pass over the roller and the two roller brushes, after the roller and the two roller brushes move up, the roller can abut against the edge of the disc, and the disc can be inserted between the two roller brushes; a first stroke detection component and a plurality of second stroke detection components are also installed on the workbench, a plurality of first trigger components for triggering the first stroke detection components are installed on the disc seat, and the first trigger components are arranged around the rotation axis of the disc seat; a plurality of second stroke detection components are arranged on the sliding path of the traction clamp, and a second trigger component for triggering the second stroke detection component is installed on the traction clamp; the first stroke detection component and the plurality of second stroke detection components are both electrically connected to the controller.

[0006] Preferably, the cutting device comprises a first bracket, the first bracket is fixed on the workbench, and the cutting knife is mounted on the first bracket in a liftable manner.

[0007] Preferably, the cutting device further comprises a base plate, which is slidably mounted on the first bracket, wherein the base plate and the cutting knife move in opposite directions, and the traction clamp can move between the cutting knife and the base plate to clamp one end of the flannel.

[0008] Preferably, the fixing device further comprises a third bracket, the disc seat is rotatably mounted on the third bracket, and a first motor for driving the disc seat to rotate is mounted on the third bracket.

[0009] Preferably, the fixing device further comprises a reducer, and the first motor drives the disc seat to rotate via the reducer.

[0010] Preferably, the glue spraying device further comprises a liquid collecting box, which is fixed on the workbench and located below the glue gun, and the flannel cloth passes between the liquid collecting box and the glue gun.

[0011] Preferably, the traction device further comprises a second bracket, the second bracket is slidably mounted on the workbench, and the traction clamp is mounted on the second bracket in a liftable manner.

[0012] Preferably, the hemming machine further comprises a feeding device, which comprises a packing roller, which is rotatably mounted on a workbench, the packing roller is located on the left side of the cutting knife, and the flannel is wound around the packing roller to form a flannel roll.

[0013] Preferably, the lifting device also includes a second feeding track for receiving the flannel, the second feeding track extends in the left and right directions, the second feeding track is installed on the workbench in a liftable manner, and the second feeding track, rollers and two roller brushes are arranged in sequence from left to right.

[0014] Preferably, the second feeding track, the roller and the two roller brushes are raised in sequence.

[0015] The beneficial effects of the technical solution of the present invention are as follows: the above solution can hem discs of different specifications, and due to the arrangement of the roller and the brush, the positioning reference of the flannel cloth and the roller edge is kept consistent, and the roller wrapped around the disc is more neat and beautiful, avoiding rework, and because the roller brush has tough bristles, when the bristles on the roller brush are pressed against the flannel cloth, a accommodating space matching the disc edge is formed between the two roller brushes, and the shape and size of the accommodating space can be adaptively changed according to the structure of the disc edge, and the flannel cloth can be attached to the disc edge, so that the present invention is not limited to the specifications of the disc, is not limited to the structure of the disc edge contour, not only has a wide range of applications, but also the above structure can complete the fixed-length cutting and gluing of the flannel cloth, further improving the efficiency of hemming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure diagram of the disc hemming machine Figure 1 ;

[0017] Figure 2 The structure diagram of the disc hemming machine Figure 2 ;

[0018] Figure 3 The structure diagram of the feeding device Figure 1 ;

[0019] Figure 4 The structure diagram of the feeding device Figure 2 ;

[0020] Figure 5 Schematic diagram of the cutting device Figure 1 ;

[0021] Figure 6 Schematic diagram of the cutting device Figure 2 ;

[0022] Figure 7 It is a structural schematic diagram of the jacking device;

[0023] Figure 8 Schematic diagram of the structure of the fixing device Figure 1 ;

[0024] Fig. 9 Schematic diagram of the structure of the fixing device Figure 2 ;

[0025] Fig.10 Schematic diagram of the structure of the fixing device Figure 3 ;

[0026] Fig.11 It is a structural schematic diagram of the traction device.

[0027] Figure numerals: 2, workbench; 3, feeding device; 31, clamping plate; 32, mounting plate; 321, fourth bracket; 33, packing roller; 34, locking plate; 35, first finishing roller; 36, second finishing roller; 37, third finishing roller; 38, fourth finishing roller; 39, fifth finishing roller; 4, cutting device; 41, first bracket; 42, 43, 431, second cylinder; 432, first connecting plate; 433, first connecting column; 435, second slide block; 44, cutting knife; 441, first positioning plate; 442, second slide rail; 443, third slide block; 444, third cylinder; 45, first feeding guide rail; 451, support column; 452, first position limiting part; 46, pressing plate; 461, first cylinder; 462, second positioning plate; 463, first guide rod; 5, glue spraying device; 50, glue barrel; 51, glue gun; 52, ninth mounting seat; 53, liquid collecting box; 54, baffle; 6, lifting device; 61, second feeding guide rail; 610, second position limiting part; 611, fifth cylinder; 612, fourth positioning plate; 613, second connecting column; 614, second guide rod; 62, roller; 621, positioning groove; 62 2. The seventh mounting seat; 623. The third guide rod; 624. The eighth mounting seat; 63. The roller brush; 631. The sixth cylinder; 632. The fifth positioning plate; 64. The support plate; 7. The fixing device; 71. The second bracket; 72. The main shaft; 73. The bottom foot fixing seat; 731. The second limit plate; 732. The sixth mounting seat; 74. The limit clamping claw; 741. The fifth mounting seat; 75. The second motor; 751. The reducer; 752. The small gear; 753. The mounting bracket; 754. The large gear; 76. The first trigger assembly; 77. The first stroke detection assembly; 771 , third mounting seat; 78, pneumatic rotary joint; 79, fourth mounting seat; 8, traction device; 81, second bracket; 811, fourth slider; 82, third slide rail; 83, first motor; 84, transmission belt; 841, first mounting seat; 842, second mounting seat; 843, first pulley; 844, second pulley; 85, fourth cylinder; 86, third positioning plate; 87, traction clamp; 88, second trigger assembly; 89, second stroke detection assembly; 91, flannel; 92, disc; 921, first pipe fitting; 922, second pipe fitting; 93, controller. Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The orientation described in the following embodiment 1 is Figure 1The position of the glue barrel 50 is the left, the position of the third bracket 71 is the back, and the position of the workbench bracket 1 is the bottom. Example

[0034] like Figure 1 The disc hemming machine shown includes a workbench 2, a controller 93, a glue spraying device 5, a cutting device 4, a traction device 8, a fixing device 7 and a lifting device 6; the glue spraying device 5 includes a glue gun 51 for spraying glue to the flannel, and the glue gun 51 is installed on the workbench 2; Figure 5 and Figure 6 As shown, the cutting device 4 includes a cutting knife 44 for cutting the flannel into a fixed length; Figure 1 , Figure 8 and Fig. 9 As shown, the fixing device 7 includes a disc seat 73 for mounting a disc, and the disc seat 73 is rotatably mounted on the workbench 2; Figure 1 , Figure 2 and Fig.11 As shown, the traction device 8 includes a traction clamp 87 for traction of the flannel, and the traction clamp 87 is slidably mounted on the workbench 2; Figure 1 , Figure 2 and Figure 7 As shown, the lifting device 6 includes a roller 62 and two roller brushes 63, and the roller 62 and the two roller brushes 63 can rotate on the workbench 2, and the roller 62 and the two roller brushes 63 are installed on the workbench 2 in a liftable manner; wherein the cutting knife 44, the glue gun 51 and the disc seat 73 are arranged in sequence from left to right, the roller 62 and the two roller brushes 63 are all located below the disc seat 73, the roller 62 is located on the left side of the roller brush 63, and the two roller brushes 63 are arranged front and back, and the traction clamp 87 can slide left and right below the cutting knife 44, the glue gun 51 and the disc seat 73, and the traction clamp 87 can pull the flannel cloth to pass over the roller 62 and the two roller brushes 63. After the roller 62 and the two roller brushes 63 move up, the roller 62 can abut against the edge of the disc, and the disc can be inserted between the two roller brushes 63; as shown in FIG. Fig. 9 , Fig.10 and Fig.11 The workbench 2 is also equipped with a first stroke detection assembly 77 and a plurality of second stroke detection assemblies 98. The disc seat 73 is equipped with a plurality of first trigger assemblies 76 for triggering the first stroke detection assembly 77, and the first trigger assembly is arranged around the rotation axis of the disc seat 73. The plurality of second stroke detection assemblies 98 are arranged on the sliding path of the traction clamp 87, and the traction clamp 87 is equipped with a second trigger assembly 88 for triggering the second stroke detection assembly 98. The first stroke detection assembly 77 and the plurality of second stroke detection assemblies 98 are both electrically connected to the controller 93.

[0035] The hemming method using the above structure is as follows: step 1) inputting the disc size on the controller 93 and fixing the disc on the disc seat 73; step 2) the traction clamp 87 clamps the end of the flannel located on the left side of the cutting knife 44, and the traction clamp 87 slides to the right to pull the flannel to move, and the flannel passes under the glue gun 51 after passing the cutting knife 44, and the glue sprayed by the glue gun 51 covers the upper surface of the flannel; step 3) when the traction clamp 87 pulls the flannel to move above the roller brush 63, the traction clamp 87 stops moving and loosens the flannel, and then the roller brush 63 is pulled by the traction clamp 87. The wheel 62 and the roller brush 63 move up, the roller 62 moves up to push the flannel cloth to make it stick to the edge of the disc, the two roller brushes 63 move up to insert the disc between the two roller brushes 63, the bristles of the two roller brushes 63 close to the shoulder disc are deformed, and the bristles push the flannel cloth under their own toughness, so that the flannel cloth wraps the edge of the disc; wherein, if the required length of the flannel cloth for hemming is less than the total stroke of the traction clamp 87 sliding from left to right, the traction clamp 87 stops moving when the actual sliding distance of the traction clamp 87 matches the length of the flannel cloth. The cutting knife 44 cuts the flannel, and then the traction clamp 87 continues to move; wherein, the actual moving distance of the traction clamp 87 is determined by the number of the second stroke detection components 98 triggered by the second trigger component 88; step 4) the disc seat 73 rotates and drives the disc to rotate. When the disc seat 73 rotates, the first trigger component is separated from the first stroke detection component 77. Since the end of the flannel has been adhered to the disc, the disc rotates to pull the flannel to move. When the flannel moves, it is first adhered to the edge of the disc by the roller 62, and then passed through the roller. The bristles of the brush 63 will adhere the flannel that has been adhered to the edge of the disk to the disk and wrap the edge of the disk; wherein, if the required length of the flannel used for edging is greater than the total sliding stroke of the traction clamp 87 from left to right, the flannel will be cut off during the rotation of the disk seat 73; wherein, the length of the flannel used for edging is calculated based on the total sliding stroke of the traction clamp 87 from left to right and the rotation angle of the disk seat 73; step 5) after the disk seat 73 rotates one circle, the edge of the disk has been hemmed, the disk seat 73 stops rotating, and the disk is removed from the disk seat 73.

[0036] In this way, the above structure and method can be used to wrap the edges of discs of different specifications, and due to the setting of the roller 62 and the brush, the positioning reference of the flannel and the edge of the roller 62 is kept consistent, and the roller 62 wrapped around the disc is more neat and beautiful, avoiding rework, and because the bristles on the brush of the roller 62 are tough, when the bristles on the roller brush 63 are pressed against the flannel, a accommodating space matching the edge of the disc is formed between the two roller brushes 63, and the shape and size of the accommodating space can be adaptively changed according to the structure of the edge of the disc, and the flannel can be attached to the edge of the disc, so that the present invention is not limited to the specifications of the disc, nor to the structure of the edge contour of the disc, and not only has a wide range of applications, but the above structure can also complete the fixed-length cutting and gluing of the flannel, further improving the efficiency of wrapping.

[0037] Further preferably, part of the bristles of the two roller brushes 63 overlap. In the above steps 3) and 4), the bristles of the two roller brushes 63 located inside the first tube 921 overlap, and the bristles of the two roller brushes 63 located outside the first tube 921 overlap, so that the two roller brushes 63 completely wrap the first tube 921, further improving the hemming effect.

[0038] In this embodiment, Figure 5 and Figure 6 As shown, the cutting device 4 includes a first bracket 41, which is vertically arranged and fixed on the workbench 2. Two first slide rails 42 are fixed to the right side of the first bracket 41. The first slide rails 42 are vertically arranged and arranged front and back. The cutting device 4 also controls two first sliders, which are respectively installed on the two first slide rails 42. The two first sliders are fixedly connected by a first positioning plate 441. The cutting knife 44 is rotatably installed on the first positioning plate 441. A first cylinder 461 is installed on the first bracket 41. A second positioning plate 462 is fixed on the telescopic end of the first cylinder 461. The second positioning plate 462 is fixedly connected to the first positioning plate 441, so that the first cylinder 461 can drive the first positioning plate 441 and the cutting knife 44 installed on the first positioning plate 441 to move up and down through the second positioning plate 462; the cutting device 4 also includes a bottom plate 43, on which two second sliders 435 are fixedly installed, and the two second sliders 435 are respectively installed on the two first slide rails 42, and the bottom plate 43 is located directly below the cutting knife 44, and the workbench 2 is installed with a second cylinder 431, and the telescopic end of the second cylinder 431 is fixedly connected to the bottom plate 43, and the second cylinder 431 can drive the bottom plate 43 to move closer to or away from the cutting knife 44.

[0039] Such arrangement makes the gap between the cutting knife 44 and the base plate 43 adjustable. When the cutting knife 44 cuts the flannel, the first cylinder 461 and the second cylinder 431 drive the cutting knife 44 and the base plate 43 to move away from each other, so that the traction clamp 87 can pass between the cutting knife 44 and the base plate 43, and then clamp the flannel on the left side of the cutting knife 44. This can greatly reduce the difficulty of feeding the flannel and improve the efficiency of the disc hemming.

[0040] In this embodiment, a second slide rail 442 is installed on the first positioning plate 441, and the second slide rail 442 extends in the front-to-back direction. A third slider 443 is installed on the second slide rail 442, and the cutting knife 44 is rotatably installed on the third slider 443. A third cylinder 444 is installed on the first bracket 41, and the telescopic end of the third cylinder 444 is connected to the third slider 443, so that the third cylinder 444 can drive the third slider 443 to drive the cutting knife 44 to slide back and forth to cut the flannel; in this embodiment, the cutting knife 44 is a disc knife, and the process of the cutting device 4 cutting the flannel is: the bottom plate 43 and the cutting knife 44 approach each other, the cutting knife 44 and the bottom plate 43 clamp the flannel, and then the third cylinder 444 drives the third slider 443 to drive the cutting to move forward, and the cutting knife 44 moves forward and rotates to cut the flannel.

[0041] Such an arrangement enables the cutting device 4 to cut flannel of various widths and thicknesses, thereby increasing the application range of the device.

[0042] In this embodiment, a first avoidance hole is opened on the workbench 2, and the lower part of the first bracket 41 is inserted into the first avoidance hole. A first connecting plate 432 is fixedly installed on the cylinder body of the second cylinder 431, and two first connecting columns 433 are fixedly installed on the first connecting plate 432. The second cylinder 431 is located between the two first connecting columns 433, and the two ends of the first connecting column 433 are respectively fixedly connected to the top of the first connecting plate 432 and the bottom of the workbench 2. The telescopic end of the second cylinder 431 extends upward and passes through the first avoidance hole and is fixedly connected to the bottom plate 43.

[0043] Such an arrangement can hide some components and fully utilize the space above and below the workbench 2 to better install and position various devices.

[0044] In this embodiment, Figure 5 and Figure 6As shown, the cutting device 4 also includes a first feeding guide rail 45 and a pressure plate 46, the first feeding guide rail 45 extends in the left and right directions, the first feeding guide rail 45 is located on the left side of the bottom plate 43 and the cutting knife 44, the first feeding guide rail 45 is fixed on the first bracket 41, and two first limiting parts 452 are protruded on the first feeding guide rail 45, and the two first limiting parts 452 are arranged front and back, the first feeding guide rail 45 is used to carry the flannel, and the flannel is located between the two first limiting parts 452; the pressure plate 46 is installed on the second positioning plate 462, and the length of the pressure plate 46 in the front and back direction is not greater than the spacing between the two first limiting parts 452. When the flannel is cut to a fixed length, the pressure plate 46 is inserted from top to bottom between the two first limiting parts 452, and the pressure plate 46 and the first feeding guide rail 45 clamp the flannel.

[0045] Such an arrangement can ensure that the flannel will not deviate during the cutting process, thereby ensuring the stability of the cutting process.

[0046] Further preferably, two first guide rods 463 are fixed on the top of the press plate 46, the two first guide rods 463 are arranged front and back, the two first guide rods 463 extend upward and penetrate the second positioning plate 462, the first guide rod 463 is slidably connected with the second positioning plate 462, the tops of the two first guide rods 463 are fixedly connected through the first limit plate, the first guide rod 463 is sleeved with a first return spring, and the two ends of the first return spring are respectively against the press plate 46 and the second positioning plate 462. Such an arrangement can improve the adaptability of the press plate 46, and make the strokes of the press plate 46 and the cutting knife 44 different, thereby improving the fault tolerance and stability of the device.

[0047] Further preferably, the bottom surface of the first feeding guide rail 45 and the top surface of the workbench 2 are fixedly connected via a plurality of first support columns 451 .

[0048] In this embodiment, Figure 1 , Figure 2 and Fig.11 As shown, the traction device 8 includes a third slide rail 82, which extends in the left and right directions and is fixed on the workbench 2. The third slide rail 82 is located on the rear side of the first bracket 41. A fourth slider 811 is installed on the third slide rail 82, and the second bracket 81 is installed on the fourth slider 811. A fourth cylinder 85 is installed on the second bracket 81. A third positioning plate 86 is installed on the telescopic end of the fourth cylinder 85. The traction clamp 87 is installed on the third positioning plate 86. The fourth cylinder 85 can drive the traction clamp 87 to slide in the up and down directions to adjust the height of the traction clamp 87.

[0049] In order to drive the traction clamp 87 to move left and right, in this embodiment, the traction device 8 also includes a first motor 83, a first mounting seat 841 and a second mounting seat 842. The first mounting seat 841 and the second mounting seat 842 are arranged left and right, and the first mounting seat 841 and the second mounting seat 842 are both fixed on the workbench 2. The first mounting seat 841 and the second mounting seat 842 are located on the rear side of the third slide rail 82. The first motor 83 is installed on the first mounting seat 841, and a first pulley 843 is installed on the output end of the first motor 83. A second pulley 844 is rotatably installed on the second mounting seat 842. The first pulley 843 and the second pulley 844 are connected by a transmission belt 84, and the second bracket 81 is fixedly connected to the transmission belt 84.

[0050] In this embodiment, the second travel detection assembly 98 is disposed on the rear side of the third slide rail 82 , and the second trigger assembly 88 is mounted on the second bracket 81 .

[0051] In this embodiment, Figure 1 , Figure 2 , Figure 8 , Fig. 9 and Fig.10 As shown, the fixing device 7 includes a third bracket 71, and the third bracket 71 is fixed on the workbench 2. The third bracket 71 is located on the rear side of the transmission belt 84. A main shaft 72 is installed at the rear end of the base fixing seat 73. The main shaft 72 extends in the front and rear directions and is rotatably installed on the third bracket 71; the fixing device 7 also includes a second motor 75 and a reducer 751. The second motor 75 is installed on the reducer 751. The second motor 75 is connected to the reducer 751 in transmission. The reducer 751 is installed on the third bracket 71 through the mounting bracket 753. A large gear 754 is installed on the main shaft 72, and the large gear 754 is meshed with the small gear 752 of the reducer 751 for transmission; the first trigger assembly is installed on the main shaft 72, a third mounting seat 771 is installed on the third bracket 71, and the first stroke detection assembly 77 is installed on the third mounting seat 771. Further preferably, a fourth mounting seat 79 is mounted on the third bracket 71 , and a pneumatic rotary joint 78 is mounted on the fourth mounting seat 79 . The pneumatic rotary joint 78 is connected to the rear end of the main shaft 72 .

[0052] With such arrangement, the cooperation between the motor and the reducer 751 can more accurately control the rotation angle of the disc seat 73, and the pneumatic rotary joint 78 can effectively control the start and stop of the disc seat 73, making the movement of the disc seat 73 more stable and the movement of the fixing device 7 more reliable.

[0053] More preferably, if Figure 1 and Figure 8As shown, the above-mentioned disc 92 includes a first annular pipe 921 and a second pipe 922 staggered inside the first pipe 921, and the front end of the disc seat 73 is fixedly mounted with a fifth mounting seat 741, and the fifth mounting seat 741 is mounted with a limited clamping claw 74. In the above step 1), after the disc 92 is fixed on the disc seat 73, the first pipe 921 is inserted between the two fingers of the limited clamping claw 74; in the above step 3), when the first pipe 921 is inserted between the two roller brushes 63, so that the flannel wraps the edge of the disc 92, the two fingers on the limited clamping claw 74 approach each other to clamp the flannel outside the roller brush 63; in the above step 4), the limited clamping claw 74 rotates with the disc seat 73 and always keeps the clamping state; in the above step 5), when the disc 92 completes the edge wrapping, the limited clamping claw 74 is released.

[0054] With such arrangement, the limiting clamp 74 can ensure that the flannel and the first tube 921 are in close contact with each other, which can effectively prevent the flannel and the first tube 921 from sliding relative to each other during the rotation of the disc 92 due to the flannel not being in close contact with the first tube 921, thereby avoiding the mismatch between the length of the flannel cut by the fixed-length cutting device 4 and the disc 92, and ensuring the stability of the fit.

[0055] Further preferably, the fixing device also includes a second limit plate 731 and multiple quick clips, and the multiple quick clips are all installed at the front end of the disk base 73. The front end of the disk base 73 is provided with multiple first threaded holes, and the second limit plate 731 can be installed in threaded holes different from the front end of the disk base 73 through fasteners, so that the installation position of the second limit plate 731 can match the disk 92 with different structures; in this embodiment, the front end of the disk 92 is also provided with multiple second threaded holes, and the quick clip is installed on the sixth mounting seat 732, and the sixth mounting seat 732 can be connected to the second threaded holes at different positions through fasteners, so that the installation position of the quick clip can match the disk 92 with different structures; wherein, the structure of the quick clip can refer to patent documents with publication numbers CN204843937U, CN216759539U and CN212420482U. In the above step 1), the installation position of the second limit plate 731 is adjusted according to the position of the second pipe 922 of the disc 92. When installing the disc 92 on the disc seat 73, the second pipe 922 is mounted on the second limit plate 731, and the axis of the first pipe 921 is coaxial with the rotation axis of the disc seat 73. Then, the handle of the quick rack is pressed down so that the pressure head of the quick clamp presses the second pipe 922, so that the second pipe 922 fits the disc seat 73, and then the disc 92 is fixed on the disc seat 73.

[0056] With such arrangement, the disc 92 can be clamped and released quickly, and the installation positions of the second limit plate 731 and the quick clamp can be adjusted according to the specific structure of the disc 92, so that the fixing device 7 can match discs 92 of different structures.

[0057] In this embodiment, Figure 7 As shown, the lifting device 6 also includes a second feeding guide rail 61 for carrying the flannel, and two second limiting portions 610 are protruded on the second feeding guide rail 61, and the two second limiting portions 610 are arranged front and back, and the second feeding guide rail 61 is located between the glue gun 51 and the roller 62, and the second feeding guide rail 61 extends in the left and right directions, and the second feeding guide rail 61 is installed above the workbench 2 in a liftable manner; in the above step 2), the traction clamp 87 pulls the flannel to pass over the second feeding guide rail 61, the roller 62 and the roller brush 63 in sequence, wherein the flannel passes between the two second limiting portions 610 of the second feeding guide rail 61.

[0058] In this way, the second feeding guide rail 61 can limit the position of the flannel in the front-to-back direction, and keep the flat cloth entering between the roller 62 and the first tube 921 in a straight state, thereby better limiting the position of the roller 62 pushing the flannel, limiting the fitting position of the flannel and the first tube 921, preventing the fitting position of the flannel and the first tube 921 from shifting, and making the edging effect of the disc 92 more regular and beautiful.

[0059] Preferably, the heights of the second feeding guide 61, roller 62 and roller brush 63 are successively increased. In the above step 3), after the disc seat 73 rotates, the flannel on the second feeding guide 61, roller 62 and roller brush 63 is in an inclined and taut state, so that the flannel fits more regularly.

[0060] Further preferably, the rotation axis of the roller 62 is located directly below the rotation axis of the disc seat 73, and the roller brush 63 is located on the right side of the roller 62; thus, in the above step 2), the right side portion of the first tube 921 is inserted between the two roller brushes 63; in the above step 3), after the disc seat 73 rotates, the flannel gradually enters between the two roller brushes 63 from bottom to top and from left to right, so that the flannel wraps from the outside of the first tube 921 to the inside of the first tube 921. In this way, the flannel has a tendency to wrap from the outside of the first tube 921 to the inside of the first tube 921 through position adjustment, further improving the hemming effect.

[0061] Further preferably, a positioning groove 621 is recessed on the outer circumferential surface of the roller 62; in the above step 3), the first tube 921 is inserted into the positioning groove 621, and the inner wall of the positioning groove 621 pushes the flannel to fit with the first tube 921, and the inner wall of the positioning groove 621 pushes the flannel to deform the part that is not in contact with the first tube 921, giving the flannel a tendency to wrap the first tube 921. In this way, before the flannel wraps the first tube 921 through the two roller brushes 63, the roller 62 completes the fitting and positioning of the flannel and the first tube 921, and pre-deforms the flannel, so that the roller brush 63 can further wrap the flannel according to the deformation trend of the flannel, thereby further reducing the difficulty of the flannel wrapping the first tube 921 and improving the stability of the edge wrapping of the disc 92.

[0062] Furthermore, the positioning groove 621 is an arc-shaped groove, and the inner diameter of the cross section of the positioning groove 621 is larger than the cross section diameter of the first pipe 921. Such a configuration enables the positioning groove 621 to match discs 92 of more specifications and shapes.

[0063] In order to drive the lifting and lowering of the second feeding guide rail 61, the roller 62 and the roller brush 63, in this embodiment, a fifth cylinder 611 is installed on the workbench 2, and the telescopic end of the fifth cylinder 611 is connected to the bottom of the second feeding guide rail 61. The right end of the second feeding guide rail 61 is installed with a seventh mounting seat 622, and the roller 62 and the roller brush 63 are both installed on the seventh mounting seat 622. Further, the workbench 2 is provided with a second avoidance hole, and the cylinder body of the fifth cylinder 611 is installed on the fourth positioning plate 612, and the fourth positioning plate 612 is located below the workbench 2. Two second connecting columns 613 are fixedly installed on the fourth positioning plate 612, and the tops of the two second connecting columns 613 are connected to the bottom of the workbench 2. The two second connecting columns 613 are arranged front and back, and the fifth cylinder 611 is located between the two second connecting columns 613. The telescopic end of the fifth cylinder 611 extends upward through the second avoidance groove and is connected to the bottom of the second feeding guide rail 61.

[0064] Further preferably, two vertically arranged second guide rods 614 are installed on the telescopic second feeding guide rail 61, the two second guide rods 614 are arranged on the left and right, the fifth cylinder 611 is located between the two second guide rods 614, and two guide sleeves are fixedly installed on the workbench 2, and the two second guide rods 614 are respectively inserted into the guide sleeves 615 and slidably connected.

[0065] Further preferably, the roller 62 is rotatably mounted on the eighth mounting seat 624, and two third guide rods 623 are fixedly mounted on the bottom of the eighth mounting seat 624. The two third guide rods 623 are arranged front and back, and the two third guide rods 623 extend downward and pass through the seventh mounting seat 622. The third guide rod 623 and the seventh mounting seat 622 are slidably matched, and a second return spring is sleeved on the third guide rod 623. The two ends of the second return spring are respectively against the seventh mounting seat 622 and the eighth mounting seat 624, and the bottoms of the two third guide rods 623 are fixedly connected by a third limit plate. With such a configuration, the roller 62 can move up and down relative to the second feeding guide rail 61, can adapt to the contour of the first pipe fitting 921, ensure that the flannel can be attached to the first pipe fitting 921, avoid excessive pressure between the roller 62 and the first pipe fitting 921, improve the fault tolerance of the device, and ensure the device performance of the pasting.

[0066] Further preferably, a sixth cylinder 631 is installed at the right end of the seventh mounting seat 622, a fifth positioning plate 632 is arranged above the sixth cylinder 631, the telescopic end of the sixth cylinder 631 is connected to the bottom of the fifth positioning plate 632, and the two roller brushes 63 are both installed on the fifth positioning plate 632. Such an arrangement enables the height of the roller brush 63 to be adjusted relative to the second feeding guide rail 61, and the unit is more matched with the disc 92.

[0067] In this embodiment, a plurality of support plates 64 are fixedly mounted on the left end of the second feeding guide rail 61 . The plurality of support plates 64 are clearance-matched and are arranged front to back.

[0068] In this embodiment, Figure 1 As shown, the glue spraying device 5 also includes a glue barrel 50, a liquid collecting box 53 and a baffle 54. The glue gun 51 is fixed on the second bracket 81 through the ninth mounting seat 52. The baffle 54 is fixed on the ninth mounting seat 52. The baffle 54 is concave in shape. The baffle 54 surrounds the glue gun 51. The glue gun 51 is located inside the baffle 54. The liquid collecting box 53 is fixed on the workbench 2. The liquid collecting box 53 is located below the glue gun 51. In the above steps 2), 3), and 4), the flannel passes between the liquid collecting box 53 and the baffle 54. Such a setting can prevent glue splashing and affect the operation of other components of the hemming machine.

[0069] Further preferably, the left end of the liquid collecting box 53 is provided with an opening communicating with the inside thereof, and a support plate 64 fixed at the left end of the second feeding guide rail 61 is inserted into the liquid collecting box 53 through the opening; when the flannel is cut, the left end of the flannel is received by the support plate 64. This arrangement prevents the left end of the flannel from swinging downward directly and falling into the glue of the liquid collecting box 53 after the flannel is cut, thereby preventing the flannel from being over-coated with glue.

[0070] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the hemming machine also includes a feeding device 3, the feeding device 3 includes a fourth bracket 321, a packing roller 33 is rotatably mounted on the fourth bracket, the flannel 91 is wound around the packing roller 33 to form a flannel 91 roll, two clamping plates 31 are installed on the packing roller 33, the flannel 91 roll is located between the two clamping plates 31, a locking plate 34 is sleeved on the packing roller 33, a locking pin 30 is threadedly connected to the locking plate 34, one end of the locking pin 30 extends from the locking plate 34, and the other end of the locking pin 30 can pass through the locking plate 34 and tighten against the packing roller 33.

[0071] Furthermore, the feeding device 3 also includes a mounting plate 32, a fourth bracket 321 is fixed on the mounting plate 32, the mounting plate 32 is fixed on the workbench 2, and a plurality of sorting rollers are rotatably mounted on the front end of the mounting plate 32, and the plurality of sorting rollers are staggered, and the flannel 91 passes through the sorting rollers one by one and is fed to the first feeding guide rail 45.

[0072] In this embodiment, the plurality of finishing rollers include a first finishing roller 35, a second finishing roller 36, a third finishing roller 37, a fourth finishing roller 38 and a fifth finishing roller 39, wherein the first finishing roller 35 is located at the top, the second finishing roller 36 is located at the lower left of the first finishing roller 35, the third finishing roller 37 is located at the lower right of the first finishing roller 35, the third finishing roller 37 is located at the upper right of the second finishing roller 36, the fourth finishing roller 38 is located at the lower right of the third finishing roller 37, the fourth finishing roller 38 is located at the lower right of the second finishing roller 36, the fifth finishing roller 39 is located at the upper right of the fourth finishing roller 38, and the fifth finishing roller 39 is located at the lower right of the third finishing roller 37. After the right end of the flannel 91 is leveled by the first finishing roller 35, the second finishing roller 36, the third finishing roller 37, the fourth finishing roller 38 and the fifth finishing roller 39 in sequence, it is sent to the first feeding guide 45. In this way, the flannel 91 is kept level before being attached to the disc 92, so as to avoid wrinkles affecting the hemming effect.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0074] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A disc hemming machine, characterized in that: It comprises a workbench (2), a controller (93), a cutting device (4), a glue spraying device (5), a lifting device (6), a fixing device (7) and a traction device (8); The cutting device (4) comprises a cutting knife (44) for cutting the flannel cloth to a fixed length; The glue spraying device (5) comprises a glue gun (51) for spraying glue onto the flannel, wherein the glue gun (51) is installed on the workbench (2); The lifting device (6) comprises a roller (62) and two roller brushes (63), the roller (62) and the two roller brushes (63) are both capable of rotating on the workbench (2), and the roller (62) and the two roller brushes (63) are both mounted on the workbench (2) in a manner that allows them to be lifted and lowered; The fixing device (7) comprises a disc seat (73) for mounting the disc, wherein the disc seat (73) is rotatably mounted on the workbench (2); The traction device (8) comprises a traction clamping claw (87) for traction of the flannel cloth (91), and the traction clamping claw (87) is slidably mounted on the workbench (2); The cutting knife (44), the glue gun (51) and the disc seat (73) are arranged in sequence from left to right, the roller (62) and the two roller brushes (63) are both located below the disc seat (73), the roller (62) is located on the left side of the roller brush (63), the two roller brushes (63) are arranged front and back, the traction clamp (87) can slide left and right below the cutting knife (44), the glue gun (51) and the disc seat (73), the traction clamp (87) can pull the flannel (91) so that the flannel (91) passes over the roller (62) and the two roller brushes (63), and after the roller (62) and the two roller brushes (63) move upward, the roller (62) can abut against the edge of the disc (92), and the disc (92) can be inserted between the two roller brushes (63); The workbench (2) is also equipped with a first stroke detection component (77) and a plurality of second stroke detection components (89); the disc seat (73) is equipped with a plurality of first trigger components for triggering the first stroke detection components (77); the first trigger components are arranged around the rotation axis of the disc seat (73); the plurality of second stroke detection components (89) are arranged on the sliding path of the traction clamp (87); the traction clamp (87) is equipped with a second trigger component (88) for triggering the second stroke detection component (89); the first stroke detection component (77) and the plurality of second stroke detection components (89) are both electrically connected to the controller (93); The lifting device (6) further comprises a second feeding track (61) for receiving the flannel (91), the second feeding track (61) extending in the left-right direction, the second feeding track (61) being mounted on the workbench (2) in a liftable manner, the second feeding track (61), the roller (62) and the two roller brushes (63) being arranged in sequence from left to right; The second feeding track (61), the roller (62) and the two roller brushes (63) are raised in sequence.

2. A disc hemming machine according to claim 1, characterized in that: The cutting device (4) comprises a first bracket (41), the first bracket (41) is fixed on the workbench (2), and the cutting knife (44) is mounted on the first bracket (41) in a liftable manner.

3. A disc hemming machine according to claim 2, characterized in that: The cutting device (4) further comprises a bottom plate (43), wherein the bottom plate (43) is slidably mounted on the first bracket (41), wherein the bottom plate (43) and the cutting knife (44) move in opposite directions, and the traction clamp (87) is capable of moving between the cutting knife (44) and the bottom plate (43) to clamp one end of the flannel (91).

4. A disc hemming machine according to claim 1, characterized in that: The fixing device (7) further comprises a third bracket (71), the disc seat (73) being rotatably mounted on the third bracket (71), and a first motor (75) for driving the disc seat (73) to rotate is mounted on the third bracket (71).

5. A disc hemming machine according to claim 4, characterized in that: The fixing device (7) further comprises a reducer (751), and the first motor (75) drives the disc seat (73) to rotate via the reducer (751).

6. A disc hemming machine according to claim 1, characterized in that: The glue spraying device (5) further comprises a liquid collecting box (53), wherein the liquid collecting box (53) is fixed on the workbench (2), and the liquid collecting box (53) is located below the glue gun (51), and the flannel (91) passes between the liquid collecting box (53) and the glue gun (51).

7. The disc hemming machine according to claim 1, characterized in that: The traction device (8) further comprises a second bracket (81), wherein the second bracket (81) is slidably mounted on the workbench (2), and the traction clamping claw (87) is mounted on the second bracket (81) in a liftable manner.

8. The disc hemming machine according to claim 1, characterized in that: The hemming machine also includes a feeding device, the feeding device including a packing roller (33), the packing roller (33) being rotatably mounted on the workbench (2), the packing roller (33) being located on the left side of the cutting knife (44), and the flannel (91) being wound around the packing roller (33) to form a flannel roll.

Images