A finger-in method of cotton sliver production equipment and its working mode

Abstract

The present application relates to the technical field of disposable sanitary product production equipment, and particularly relates to a finger insertion type cotton production equipment and a working mode thereof, which comprises a cotton winding device, multiple sets of compression devices and a film packaging device, each compression device is arranged on the outer surface of a first roller, the first roller is rotatably arranged, the compression device comprises a first cotton pushing mechanism, a picking mechanism, a compression mechanism and a first grabbing mechanism, the first cotton winding device and the picking mechanism are provided with a first conveying belt, the first grabbing mechanism and the film packaging device are provided with a second conveying belt for conveying the carrier, and the compression device and the film packaging device are provided with a third conveying belt for conveying the carrier. The present application discards the intermittent material conveying production mode of the traditional finger insertion type sanitary cotton, introduces the second conveying belt and the third conveying belt between the compression device and the film packaging device to carry the carrier to transfer between the two devices, and multiple sets of compression devices are adopted to realize the flow production to improve the product production speed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disposable sanitary product production equipment, in particular to a finger insertion type cotton production equipment and its working mode. BACKGROUND

[0002] At present, sanitary cottons on the market are generally divided into two categories. One is a catheter type sanitary cotton, which is to put cotton into a tubular inner part of various materials, and then to send the cotton into the body with the help of the tube and to pull out the tube for use. The other is a finger insertion type sanitary cotton, which is to directly package the cotton into a product with a packaging film without an external catheter. When used, the cotton is placed into the body with the help of a finger. The finger insertion type sanitary cotton is more economical and practical than the catheter type sanitary cotton, and thus accounts for a large proportion in the market.

[0003] The component materials of the finger insertion type sanitary cotton include fiber cotton of various components, wrapping cloth, pulling rope and packaging film. The manufacturing process is to place the wrapping cloth after being cut into a continuous fiber cotton, and then to cut the cotton into a specific length and to wind the pulling rope, and then to roll the long strip cotton into a column shape from the center and to send it into compression, to compress and form a solid shape, and then to transfer it to a packaging film packaging station for packaging. Based on the above process, the transfer between multiple stations is limited in the manufacturing process. At present, the production equipment at home and abroad generally adopts intermittent motion between stations to realize the transfer of materials between stations to complete the processing. In particular, the single set of compression forming station and the intermittent transfer to the packaging film packaging station seriously restrict the production speed. This production method has low production speed and limited overall production efficiency. SUMMARY

[0004] Therefore, in view of the above problems, the present application provides a finger insertion type cotton production equipment and its working mode.

[0005] To achieve the above purpose, the present application adopts the following technical scheme: a finger insertion type cotton production equipment, comprising:

[0006] a cotton rolling device for rolling cotton cloth to form a cotton semi-finished product;

[0007] a plurality of compression devices for compressing the cotton semi-finished product into a solid cotton finished product, each of the compression devices is arranged on the outer surface of a first roller and is arranged along the circumference of the first roller, the first roller is rotatably arranged, and the compression device comprises a first cotton pushing mechanism, a picking mechanism for picking the cotton semi-finished product, a compression mechanism, and a first grabbing mechanism for grabbing a carrier, the carrier is a hollow tubular structure, the first cotton pushing mechanism is used to sequentially push the cotton semi-finished product in the picking mechanism into the carrier of the compression mechanism and the first grabbing mechanism, and the picking mechanism is a negative pressure adsorption structure;

[0008] Film packaging device for packaging formed cotton rod;

[0009] The first conveying belt is provided between the winding device and the pickup mechanism, and first blocking strips are arranged on the first conveying belt at equal intervals along the conveying direction of the first conveying belt.

[0010] The second conveying belt is provided between the first pickup mechanism and the film packaging device, and second blocking strips are arranged on the second conveying belt at equal intervals along the conveying direction of the second conveying belt.

[0011] The third conveying belt is provided between the compression device and the film packaging device, and third blocking strips are arranged on the third conveying belt at equal intervals along the conveying direction of the third conveying belt.

[0012] Further improvement, the first roller is coaxially provided with a first fixed roller at one end of the first pushing mechanism, the diameter of the first fixed roller is consistent with the diameter of the first roller, the first pushing mechanism comprises two or more first limiting blocks and a first push rod penetrating the first limiting blocks, the first limiting blocks are arranged on the first roller, and a first curved groove is arranged on the surface of the first fixed roller, one end of the first push rod is movably arranged along the first curved groove through a roller bearing, so that the first push rod can make axial extension and contraction relative to the first roller through the first curved groove under the rotation of the first roller.

[0013] Further improvement, the compression mechanism comprises a hollow limiting tube fixed on the first roller, a plurality of accommodating grooves are arranged on the tube wall of the limiting tube at equal intervals along the circumference of the limiting tube, the width of the accommodating grooves is smaller than the diameter of the cotton rod after the semi-finished cotton rod is compressed into a solid finished cotton rod, and each of the accommodating grooves is provided with a pressing knife which can reciprocate radially along the limiting tube through the accommodating groove, and each of the pressing knives is controlled to move by the same chuck.

[0014] Further improvement, the transfer wheel is arranged between the pickup mechanism and the first conveying belt.

[0015] Further improvement, the film packaging device comprises a plurality of transfer assemblies, each of the transfer assemblies is arranged on the outer surface of the second roller, and each of the transfer assemblies is arranged at intervals along the circumference of the second roller, and the second roller is rotatably arranged, the transfer assembly comprises a second pushing mechanism, a second pickup mechanism for picking up the carrier loaded with the finished cotton rod, and a limiting groove arranged in sequence along the axis of the second roller.

[0016] The film packaging device further comprises a lower film unwinding device and an upper film unwinding device,

[0017] One side of the second roller is provided with an engaging wheel which can engage with the limiting groove, so as to make the lower film adhere to the limiting groove,

[0018] Further comprising a pressing wheel for bonding the upper film and the lower film,

[0019] The second cotton pushing mechanism is used for pushing the cotton rod product in the carrier into the limiting groove with the lower film attached,

[0020] The pressing wheel and the engaging wheel are provided with a guide plate for preventing the cotton rod from falling off.

[0021] Further improvement, the second roller is coaxially provided with a second fixed roller at one end provided with the second cotton pushing mechanism, the diameter of the second fixed roller is consistent with the diameter of the second roller, the second cotton pushing mechanism comprises two or more second limiting blocks and a second pushing rod penetrating the second limiting blocks, the second limiting blocks are arranged on the second roller, and a second curved groove is arranged on the surface of the second fixed roller, one end of the second pushing rod is movably arranged along the second curved groove through a roller bearing, so that the second pushing rod can make axial extension and contraction relative to the second roller through the second curved groove under the rotation of the second roller.

[0022] The application also discloses a working mode of the above-mentioned cotton rod production equipment, which comprises the following steps:

[0023] A. forming a cotton rod semi-product by winding the cotton cloth through the winding device, simultaneously winding the cotton thread and cutting;

[0024] B. conveying the cotton rod semi-product through the first conveying belt and picking up the cotton rod semi-product through the picking mechanism; while picking up the cotton rod semi-product through the picking mechanism, the first grabbing mechanism is started to grab the idle carrier located on the second conveying belt;

[0025] C. the first pushing rod of the first cotton pushing mechanism pushes the cotton rod semi-product into the limiting pipe of the compression mechanism, then the chuck is loosened after the chuck controls the compression knife to radially extrude the cotton rod semi-product to form a solid cotton rod product;

[0026] D. the first cotton pushing mechanism is used for pushing the cotton rod product into the idle carrier;

[0027] E. with the rotation of the first roller, the carrier loaded with the cotton rod product is transferred to the third conveying belt and conveyed to the film packaging device through the third conveying belt, then the second grabbing mechanism is used for grabbing the carrier loaded with the cotton rod product;

[0028] F. the lower film is unwound through the lower film unwinding device, the lower film is attached to the limiting groove under the action of the engaging wheel, then the second cotton pushing mechanism is used for pushing the cotton rod product into the limiting groove with the lower film attached;

[0029] G. the upper film is unwound through the upper film unwinding device, the upper film is adhered to the periphery of the lower film loaded with the cotton rod product under the action of the pressing wheel, and then the upper film is outputted;

[0030] H. With the rotation of the second roller, the empty carrier on the second roller is transferred to the second conveying belt to enter the next cycle.

[0031] By adopting the foregoing technical scheme, the application has the beneficial effects that the application departs from the traditional intermittent material conveying production mode of the insertion type sanitary tampon, introduces the second conveying belt and the third conveying belt between the compression device and the film packaging device to carry the carrier to circulate and continuously transfer between the two devices, and adopts multiple compression devices to realize the flow production to improve the product production speed. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic diagram of an embodiment of the application;

[0033] Figure 2 is a structural schematic diagram of the first roller surface and the first fixed roller surface of an embodiment of the application;

[0034] Figure 3 is an axial sectional structural schematic diagram of a compression mechanism of an embodiment of the application;

[0035] Figure 4 is an A-A sectional structural schematic diagram of Figure 3 ;

[0036] Figure 5 is a variation structural schematic diagram of Figure 4 ;

[0037] Figure 6 is a structural schematic diagram of the second roller surface and the second fixed roller surface of an embodiment of the application.

[0038] FIG. is a symbol:

[0039] 1, cotton rolling device; 2, compression device; 21, first roller; 221, first fixed roller; 222, first curved groove; 223, first limiting block; 224, first push rod; 23, picking mechanism; 24, compression mechanism; 241, limiting tube; 2411, body; 2412, input end; 2413, accommodation groove; 242, compression knife; 243, chuck; 25, first grabbing mechanism; 3, film packaging device; 31, second roller; 321, second fixed roller; 322, second curved groove; 323, second limiting block; 324, second push rod; 33, second grabbing mechanism; 34, limiting groove; 35, lower film unwinding device; 36, upper film unwinding device; 37, meshing wheel; 38, compression wheel; 39, guide plate; 4, first conveying belt; 41, first blocking strip; 5, second conveying belt; 51, second blocking strip; 6, third conveying belt; 61, third blocking strip; 7, carrier; 8, transfer wheel. DETAILED DESCRIPTION

[0040] The application will be further described in conjunction with the drawings and specific embodiments.

[0041] With reference to Figures 1-6 The embodiment provides a cotton sliver production equipment, which comprises a cotton rolling device 1, a compression device 2, a film packaging device 3, a first conveying belt 4, a second conveying belt 5 and a third conveying belt 6.

[0042] The cotton rolling device 1 is used for forming a cotton sliver semi-finished product by rolling cotton cloth, and in the embodiment, the cotton rolling device 1 adopts a conventional structure.

[0043] The compression device 2 is provided with eight groups for compressing the cotton rod semi-product into a solid cotton rod product, each of the compression devices 2 is arranged on the outer surface of the same first roller 21 and is spaced along the circumference of the first roller 21, the first roller 21 is rotatably arranged, the compression device 2 comprises a first cotton pushing mechanism, a picking mechanism 23 for picking the cotton rod semi-product, a compression mechanism 24, a first grabbing mechanism 25 for grabbing the carrier 7 which is a hollow tubular structure, arranged in sequence along the axis of the first roller 21, the first cotton pushing mechanism is used to sequentially push the cotton rod semi-product in the picking mechanism 23 into the carrier 7 of the first grabbing mechanism 25 and the compression mechanism 24. Among them, the first roller 21 coaxially arranged with a first fixed roller 221 at one end provided with a first cotton pushing mechanism, the diameter of the first fixed roller 221 is consistent with the diameter of the first roller 21, the first cotton pushing mechanism includes two or more first limiting blocks 223 and a first push rod 224 arranged on the first limiting block 223, the first limiting block 223 is arranged on the first roller 21, and a first curved groove 222 is arranged on the surface of the first fixed roller 221, one end of the first push rod 224 is movably arranged along the first curved groove 222 through a roller bearing, so that it can make axial extension and retraction relative to the first roller 21 through the first curved groove 222 under the rotation of the first roller 21; the compression mechanism 24 includes a hollow structure limiting tube 241 fixed on the first roller 21, the limiting tube 241 includes a columnar body 2411 and a horn-shaped input end 2412, the maximum diameter of the input end 2412 is greater than the diameter of the cotton rod semi-product, the diameter of the body 2411 is greater than the diameter of the cotton rod product and less than the diameter of the cotton rod semi-product, so as to pre-compress the cotton rod semi-product, at the same time, the limiting tube 241 can also limit the cotton rod product when the compression knife 242 retreats, the limiting tube 241 is provided with a plurality of accommodation grooves 2413 along the circumference of the tube wall of the body 2411, the number of the accommodation grooves 2413 is eight, the width of the accommodation groove 2413 is less than the diameter of the cotton rod semi-product compressed into a solid cotton rod product, each of the accommodation grooves 2413 is provided with a compression knife 242 which can move radially along the limiting tube 241, each of the compression knives 242 is controlled to move by the same chuck 243.

[0044] The film packaging device 3 is used for packaging the shaped cotton, which comprises eight groups of transfer assemblies, a lower film unwinding device 35 and an upper film unwinding device 36. Each of the transfer assemblies is arranged on the outer surface of a second roller 31 and is spaced along the circumference of the second roller 31. The second roller 31 is rotatably arranged. The transfer assembly comprises a second cotton pushing mechanism, a second grabbing mechanism 33 for grabbing the carrier 7 loaded with the cotton product, a limiting groove 34 arranged in sequence along the axis of the second roller 31. The side of the second roller 31 is provided with an engaging wheel 37 which can engage with the limiting groove 34, so as to make the lower film adhere to the limiting groove 34. In order to ensure that the lower film is stably adhered to the limiting groove 34, the limiting groove 34 is provided with a negative pressure adsorption hole. The film packaging device 3 further comprises a pressing wheel 38 for bonding the upper film and the lower film. The second cotton pushing mechanism is used for pushing the cotton product in the carrier 7 into the limiting groove 34 with the lower film adhered thereto. The side of the second roller 31 between the pressing wheel 38 and the engaging wheel 37 is provided with a guide plate 39 for preventing the cotton from falling off. The second roller 31 is coaxially provided with a second fixed roller 321 at one end provided with the second cotton pushing mechanism. The diameter of the second fixed roller 321 is consistent with the diameter of the second roller 31. The second cotton pushing mechanism comprises two or more second limiting blocks 323 and a second pushing rod 324 penetrating through the second limiting blocks 323. The second limiting blocks 323 are arranged on the second roller 31. The second cotton pushing mechanism further comprises a second curved groove 322 arranged on the surface of the second fixed roller 321. One end of the second pushing rod 324 is movably arranged along the second curved groove 322 through a roller bearing, so as to make the second pushing rod 324 perform axial extension and contraction relative to the second roller 31 through the second curved groove 322 under the rotation of the second roller 31.

[0045] The first conveying belt 4 is arranged between the winding device 1 and the picking mechanism 23. The first conveying belt 4 is provided with first blocking strips 41 which are equally spaced along the conveying direction of the first conveying belt 4. The second conveying belt 5 is arranged between the first grabbing mechanism 25 and the film packaging device 3 and is provided with the carrier 7 which is empty of the cotton product. The second conveying belt 5 is provided with second blocking strips 51 which are equally spaced along the conveying direction of the second conveying belt 5. The third conveying belt 6 is arranged between the compression device 2 and the film packaging device 3 and is provided with the carrier 7 loaded with the cotton product. The third conveying belt 6 is provided with third blocking strips 61 which are equally spaced along the conveying direction of the third conveying belt 6.

[0046] In the embodiment, the first conveying belt 4, the second conveying belt 5 and the third conveying belt 6 are respectively provided with transfer wheels 8 between the winding device 1 and the picking mechanism 23, between the first grabbing mechanism 25 and the second grabbing mechanism 33, and between the first grabbing mechanism 25 and the second grabbing mechanism 33, so as to assist the adsorption and transfer of the carrier 7. The picking mechanism 23, the first grabbing mechanism 25 and the second grabbing mechanism 33 are all negative pressure adsorption structures. In actual application, the picking mechanism 23, the first grabbing mechanism 25 and the second grabbing mechanism 33 can also be mechanical claw structures.

[0047] In practical application, the first push rod 224 and the second push rod 324 are also driven by other existing driving structures, such as a cylinder, a screw rod structure, etc., but all of them are not as simple in structure, low in cost and convenient in maintenance as the present application.

[0048] In practical application, the number of the compression devices and the transfer assemblies can be set according to actual conditions, and is not limited to eight groups in the embodiment.

[0049] The embodiment also discloses a working mode of the device, which comprises the following steps:

[0050] A. The cotton cloth is wound by the winding device to form a cotton sliver semi-finished product, the cotton thread is compounded and cut at the same time;

[0051] B. The cotton sliver semi-finished product is conveyed by the first conveying belt 4 and picked up by the picking mechanism 23; at the same time when the picking mechanism 23 picks up the cotton sliver semi-finished product, the first grabbing mechanism 25 is started to grab the idle carrier 7 located on the second conveying belt 5;

[0052] C. The first push rod of the first cotton pushing mechanism pushes the cotton sliver semi-finished product into the limiting tube 241 of the compression mechanism 24, then the chuck 243 is started to control the compression cutter 242 to radially extrude the cotton sliver semi-finished product to form a solid cotton sliver finished product, and then the chuck 243 is released;

[0053] D. The cotton sliver finished product is pushed into the idle carrier 7 by the first cotton pushing mechanism;

[0054] E. With the rotation of the first roller 21, the carrier 7 loaded with the cotton sliver finished product is transferred to the third conveying belt 6 and conveyed to the film packaging device 3 through the third conveying belt 6, and then the carrier 7 loaded with the cotton sliver finished product is grabbed by the second grabbing mechanism 33;

[0055] F. The lower film is unwound by the lower film unwinding device 35, and the lower film is attached to the limiting groove 34 under the action of the meshing wheel 37, and then the cotton sliver finished product is pushed into the limiting groove 34 with the lower film attached by the second cotton pushing mechanism; when the cotton sliver finished product is pushed out, the tail of the cotton sliver finished product is located at the front end of the pushing direction, so that the cotton thread on the cotton sliver finished product can be accommodated in the limiting groove 34;

[0056] G. The upper film is unwound by the upper film unwinding device 36, and the upper film is adhered to the periphery of the lower film loaded with the cotton sliver finished product under the action of the pressing wheel 38, and then is outputted;

[0057] H. With the rotation of the second roller 31, the idle carrier 7 located on the second roller 31 is transferred to the second conveying belt 5 to enter the next cycle.

[0058] The present application discloses a production method of the sanitary tampon, which is different from the traditional intermittent material conveying method of the tampon. The second conveying belt 5 and the third conveying belt 6 are introduced between the compression device 2 and the film packaging device 3 to carry the carrier 7 to circulate and continuously transfer between the two devices. A plurality of compression devices 2 are adopted to realize the flow production to improve the production speed.

[0059] Although the present application is specifically shown and described in connection with the preferred embodiments, those skilled in the art will appreciate that various modifications in form and detail can be made without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. A finger-insertion tampon production device, characterized in that: include A cotton rolling device for forming cotton slivers from cotton fabric rolls; Multiple sets of compression devices for pressing semi-finished cotton swabs into solid finished cotton swabs are provided. Each compression device is disposed on the outer surface of the same first roller and is spaced apart circumferentially along the first roller. The first roller is rotatable. Each compression device includes a first cotton pushing mechanism, a picking mechanism for picking up semi-finished cotton swabs, a compression mechanism, and a first gripping mechanism for gripping a carrier, arranged sequentially along the axis of the first roller. The carrier is a hollow tubular structure. The first cotton pushing mechanism is used to push the semi-finished cotton swabs in the picking mechanism into the carriers of the compression mechanism and the first gripping mechanism in sequence. The picking mechanism is a negative pressure adsorption structure. A film sealing device for packaging formed cotton strips; A first conveyor belt is provided between the cotton rolling device and the picking mechanism, and first baffles are provided at equal intervals along the conveying direction of the first conveyor belt. A second conveyor belt for conveying an empty carrier is provided between the first gripping mechanism and the film packaging device, and second baffles are provided at equal intervals along the conveying direction on the second conveyor belt; A third conveyor belt for conveying a carrier containing finished cotton strips is provided between the compression device and the film packaging device. Third baffles are provided at equal intervals along the conveying direction on the third conveyor belt. The film encapsulation device includes multiple sets of transfer components, each of which is disposed on the outer surface of the same second roller and is spaced apart along the circumference of the second roller. The second roller is rotatable. Each transfer component includes a second cotton pushing mechanism, a second gripping mechanism for gripping a carrier containing finished cotton strips, and a limiting groove arranged sequentially along the axis of the second roller. The film encapsulation device further includes a lower film unwinding device and an upper film unwinding device. The second roller has a meshing wheel on one side that can engage with the limiting groove, used to adhere the lower film to the limiting groove. It also includes a pressing roller for bonding the upper and lower films. The second cotton pushing mechanism is used to push the finished cotton sliver inside the carrier into the limiting groove with the lower film attached. A guide plate is provided between the pressing wheel and the meshing wheel to prevent the cotton strip from falling off.

2. The finger-insertion tampon production equipment according to claim 1, characterized in that: The first roller has a first fixed roller coaxially mounted at the end where the first cotton pushing mechanism is located. The diameter of the first fixed roller is the same as the diameter of the first roller. The first cotton pushing mechanism includes two or more first limiting blocks and a first push rod passing through the first limiting blocks. The first limiting blocks are located on the first roller and also include a first curved groove formed on the surface of the first fixed roller. One end of the first push rod can be moved along the first curved groove through a roller bearing, so that it can perform axial extension and retraction relative to the first roller through the first curved groove when the first roller rotates.

3. The finger-insertion tampon production equipment according to claim 1, characterized in that: The compression mechanism includes a hollow limiting tube fixed on the first roller. The tube wall is provided with multiple relief grooves at equal intervals along its circumference. The width of the relief grooves is smaller than the diameter of the cotton sliver semi-finished product after being compressed into a firm cotton sliver finished product. Each relief groove is provided with a pressing knife that can move back and forth along the radial direction of the limiting tube through the relief groove. The movement of each pressing knife is controlled by the same chuck.

4. The finger-insertion tampon production equipment according to claim 1, characterized in that: A transfer wheel is provided between the picking mechanism and the first conveyor belt.

5. The finger-insertion tampon production equipment according to claim 1, characterized in that: The second roller has a second fixed roller coaxially mounted at the end where the second cotton pushing mechanism is located. The diameter of the second fixed roller is the same as the diameter of the second roller. The second cotton pushing mechanism includes two or more second limiting blocks and a second push rod passing through the second limiting blocks. The second limiting blocks are located on the second roller. The mechanism also includes a second curved groove formed on the surface of the second fixed roller. One end of the second push rod can be moved along the second curved groove through a roller bearing, so that it can perform axial extension and retraction relative to the second roller through the second curved groove when the second roller rotates.

6. A working method of a finger-insertion tampon production device, which adopts the finger-insertion tampon production device as described in claim 5, characterized in that: Includes the following steps: A. The cotton fabric is rolled into a semi-finished cotton sliver using a cotton rolling device. Cotton thread is then added during the rolling process, and the fabric is then cut. B. The semi-finished cotton swabs are conveyed through the first conveyor belt and picked up by the picking mechanism; while the picking mechanism picks up the semi-finished cotton swabs, the first gripping mechanism is activated to grab the empty carrier located on the second conveyor belt. C. The first push rod of the first cotton pushing mechanism pushes the semi-finished cotton strip into the limiting tube of the compression mechanism, and then the chuck is activated to control the pressure knife to radially compress the semi-finished cotton strip to form a solid finished cotton strip, and then it is released. D. The finished cotton sliver is pushed into an empty carrier by the first cotton pushing mechanism; E. As the first roller rotates, the carrier containing the finished cotton strip is transferred to the third conveyor belt and then transported to the film sealing device via the third conveyor belt. The carrier containing the finished cotton strip is then gripped by the second gripping mechanism. F. The lower film is unwound by the lower film unwinding device. The lower film is adhered to the limiting groove under the action of the meshing wheel. Then, the cotton sliver is pushed into the limiting groove with the lower film adhered by the second cotton pushing mechanism. G. The upper film is unwound by the upper film unwinding device. Under the action of the pressing roller, the upper film is bonded to the periphery of the lower film containing the finished cotton strip, and then output. H. As the second roller rotates, the empty carrier located on the second roller is transferred to the second conveyor belt and enters the next cycle.

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