Longitudinal cutting and carding device for pulp slicer

Abstract

The invention discloses a longitudinal cutting and carding device for a pulp slicing machine, and belongs to the technical field of design and manufacturing of nitrocotton production process equipment. The longitudinal cutting and carding device for the pulp slicing machine can effectively improve the slitting smoothness, and the slitting quality and efficiency are obviously improved. The longitudinal cutting and carding device comprises a machine frame, an upper longitudinal cutting hob and a lower longitudinal cutting hob, a plurality of upper longitudinal cutting grooves extending in the circumferential direction are formed in the upper longitudinal cutting hob, a plurality of lower longitudinal cutting grooves extending in the circumferential direction are formed in the lower longitudinal cutting hob, and all notches of the upper longitudinal cutting hob and all notches of the lower longitudinal cutting hob are arranged on the machine frame in a mutually meshed mode. The longitudinal cutting and carding device further comprises an upper carding and conveying assembly and a lower carding and conveying assembly, and in the pulp roll slicing process, long-strip-shaped pulp strips in the upper longitudinal cutting groove are smoothly guided out of the upper longitudinal cutting hob under the cooperation of the upper carding and conveying assembly. The long-strip-shaped pulp strips in the lower longitudinal cutting groove are smoothly guided out of the lower longitudinal cutting hob under the cooperation of the lower combing and conveying assembly.

Description

Technical Field

[0001] The invention relates to a longitudinal cutting and combing device, in particular to a longitudinal cutting and combing device used for a pulp slicer, and belongs to the technical field of design and manufacturing of nitrocellulose production process equipment. Background Art

[0002] When slicing pulp rolls, the slicer first cuts the pulp board into long strips through the intermeshing longitudinal cutters. The cut long strips are then guided out from the intermeshing longitudinal cutter grooves through the combing device and sent to the cross-cutting system to be cut into small pieces to meet the subsequent nitrocellulose manufacturing process requirements.

[0003] The existing roller-blade slicer has a longitudinal cutting combing device with a single-sided split comb tooth structure, which is installed on the horizontal blade bottom tool holder on the longitudinal blade cutting and discharging side. There are problems such as the sharp corners of the single-sided comb teeth easily causing material jamming, unsmooth chip removal, and frequent manual cleaning, which affects the slicing quality and efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a longitudinal cutting and combing device for a pulp slicer which can effectively improve the smoothness of cutting and significantly improve the quality and efficiency of cutting.

[0005] The technical solution adopted to solve the above technical problems is: a longitudinal cutting and combing device for a pulp slicer, including a frame, an upper longitudinal cutting roller and a lower longitudinal cutting roller, a plurality of upper longitudinal cutting grooves extending along the circumferential direction are arranged on the upper longitudinal cutting roller, and a plurality of lower longitudinal cutting grooves extending along the circumferential direction are arranged on the lower longitudinal cutting roller. The upper longitudinal cutting roller and the lower longitudinal cutting roller are arranged on the frame with their incisions meshing with each other. The longitudinal cutting and combing device also includes an upper combing and conveying assembly and a lower combing and conveying assembly. During the pulp roll slicing process, the long pulp strips in the upper longitudinal cutting grooves are smoothly guided out of the upper longitudinal cutting roller with the cooperation of the upper combing and conveying assembly, and the long pulp strips in the lower longitudinal cutting grooves are smoothly guided out of the lower longitudinal cutting roller with the cooperation of the lower combing and conveying assembly.

[0006] Furthermore, the upper combing and transporting assembly includes at least one group of upper guide tooth combs, and the lower combing and transporting assembly includes at least one group of lower guide tooth combs. The upper guide tooth combs guide the long pulp strips to be smoothly guided out of the upper longitudinal cutting roller through the comb teeth embedded in the upper longitudinal cutting grooves, and the lower guide tooth combs guide the long pulp strips to be smoothly guided out of the lower longitudinal cutting roller through the comb teeth embedded in the lower longitudinal cutting grooves.

[0007] A preferred embodiment of the above scheme is that at least three groups of upper guide tooth combs are arranged in the upper longitudinal cutting grooves along the length direction, and at least three groups of lower guide tooth combs are arranged in the lower longitudinal cutting grooves along the length direction.

[0008] Furthermore, the comb teeth on each group of upper guide tooth combs and the comb teeth on each group of lower guide tooth combs are all through-type structures, and each group of upper guide tooth combs containing through-type comb teeth and each group of lower guide tooth combs containing through-type comb teeth are arranged on the frame through the through-type comb teeth at both ends of each of them being located in the corresponding upper longitudinal cutting grooves and the corresponding lower longitudinal cutting grooves.

[0009] A preferred embodiment of the above scheme is that each group of upper guide tooth combs and each group of lower guide tooth combs are made of non-corrosive materials such as tin bronze or copper alloy.

[0010] Furthermore, the hole widths of the through-type comb teeth in the middle of the upper guide tooth comb and the lower guide tooth comb are both 6-6.06 mm, and the distance between two adjacent holes is 5.95-6 mm.

[0011] A preferred embodiment of the above scheme is that each group of upper guide tooth combs and each group of lower guide tooth combs have a thickness of 7-10 mm, a width of 130-160 mm, and a length of 250-260 mm.

[0012] Furthermore, the length of the strip-shaped holes constituting each through-type comb tooth is 80-120 mm.

[0013] A preferred embodiment of the above scheme is that both ends of each strip hole are arc-shaped along the thickness direction of the upper guide tooth comb or the lower guide tooth comb and are adapted to the diameter of the upper longitudinal cutting hob or the lower longitudinal cutting hob.

[0014] Furthermore, the middle through-type comb teeth of each group of upper guide tooth combs and each group of lower guide tooth combs that are installed properly are sunk into the corresponding upper longitudinal cutting grooves and the corresponding lower longitudinal cutting grooves by 9.5-10 mm.

[0015] The beneficial effects of the present invention are as follows: the technical solution provided by the present application is based on the existing frame, upper longitudinal cutting roller and lower longitudinal cutting roller, and is combined with the structural characteristics that a plurality of upper longitudinal cutting grooves extending along the circumferential direction are arranged on the upper longitudinal cutting roller, a plurality of lower longitudinal cutting grooves extending along the circumferential direction are arranged on the lower longitudinal cutting roller, and the upper longitudinal cutting roller and the lower longitudinal cutting roller are arranged on the frame with their respective cuts meshing with each other. The longitudinal cutting combing device of the present application is formed by adding an upper combing and conveying assembly and then, in the pulp roll slicing process, the long pulp strips in the upper longitudinal cutting grooves are smoothly guided out of the upper longitudinal cutting roller with the cooperation of the upper combing and conveying assembly, and the long pulp strips in the lower longitudinal cutting grooves are smoothly guided out of the lower longitudinal cutting roller with the cooperation of the lower combing and conveying assembly. This effectively solves the problems in the prior art of easy material jamming, unsmooth chip removal, and the need for frequent manual cleaning when shearing pulp rolls into strips. The improved upper combing and conveying components and lower combing and conveying components provided in the present application can smoothly guide the cut nitrocellulose pulp strips to the upper longitudinal cutting grooves and the lower longitudinal cutting grooves, which can effectively improve the smoothness of the cutting and significantly improve the quality and efficiency of the cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an upper combing and conveying assembly and a lower combing and conveying assembly involved in a longitudinal cutting and combing device for a pulp slicer of the present invention, which are respectively installed on an upper longitudinal cutting roller and a lower longitudinal cutting roller;

[0017] Figure 2 A three-dimensional structural detail diagram of the installation of the lower combing and feeding assembly involved in the longitudinal cutting and combing device for pulp slicer of the present invention on the lower longitudinal cutting roller;

[0018] Figure 3 The three-dimensional structural schematic diagram of the upper guide tooth comb or the lower guide tooth comb involved in the longitudinal cutting combing device for the pulp slicer of the present invention.

[0019] Markings in the figure are: upper longitudinal cutting hob 1, lower longitudinal cutting hob 2, upper longitudinal cutting groove 3, lower longitudinal cutting groove 4, upper guide tooth comb 5, lower guide tooth comb 6, through-type comb teeth 7, and strip holes 8. DETAILED DESCRIPTION

[0020] like Figure 1 , Figure 2 as well as Figure 3The present invention provides a longitudinal cutting combing device for pulp slicer, which can effectively improve the smoothness of strip cutting, and significantly improve the strip cutting quality and efficiency. The longitudinal cutting combing device comprises a frame, an upper longitudinal cutting hob 1 and a lower longitudinal cutting hob 2. The upper longitudinal cutting hob 1 is provided with a plurality of upper longitudinal cutting grooves 3 extending in the circumferential direction, and the lower longitudinal cutting hob 2 is provided with a plurality of lower longitudinal cutting grooves 4 extending in the circumferential direction. The upper longitudinal cutting hob 1 and the lower longitudinal cutting hob 2 are arranged on the frame with each cut engaged with each other. The longitudinal cutting combing device also comprises an upper combing and conveying assembly and a lower combing and conveying assembly. During the pulp roll slicing process, the long strips of pulp in the upper longitudinal cutting grooves 3 are smoothly guided out of the upper longitudinal cutting hob 1 with the cooperation of the upper combing and conveying assembly, and the long strips of pulp in the lower longitudinal cutting grooves 4 are smoothly guided out of the lower longitudinal cutting hob 2 with the cooperation of the lower combing and conveying assembly. The technical solution provided by the present application is based on the existing frame, upper longitudinal cutting roller and lower longitudinal cutting roller, and is combined with the structural characteristics that a plurality of upper longitudinal cutting grooves extending along the circumferential direction are provided on the upper longitudinal cutting roller, a plurality of lower longitudinal cutting grooves extending along the circumferential direction are provided on the lower longitudinal cutting roller, and the upper longitudinal cutting roller and the lower longitudinal cutting roller are arranged on the frame with their respective incisions meshing with each other. The longitudinal cutting combing device of the present application is formed by adding an upper combing and conveying assembly and then, during the pulp roll slicing process, the long pulp strips in the upper longitudinal cutting grooves are smoothly guided out of the upper longitudinal cutting roller with the cooperation of the upper combing and conveying assembly, and the long pulp strips in the lower longitudinal cutting grooves are smoothly guided out of the lower longitudinal cutting roller with the cooperation of the lower combing and conveying assembly. This effectively solves the problems in the prior art of easy material jamming, unsmooth chip removal, and the need for frequent manual cleaning when shearing pulp rolls into strips. The improved upper combing and conveying components and lower combing and conveying components provided in the present application can smoothly guide the cut nitrocellulose pulp strips to the upper longitudinal cutting grooves and the lower longitudinal cutting grooves, which can effectively improve the smoothness of the cutting and significantly improve the quality and efficiency of the cutting.

[0021] Accordingly, in combination with the structural characteristics that both the upper longitudinal cutting groove and the lower longitudinal cutting groove are annular grooves respectively arranged on the upper longitudinal cutting roller and the lower longitudinal cutting roller, the present application sets the upper combing and conveying assembly to include at least one set of upper guide tooth combs 5, and the lower combing and conveying assembly to include at least one set of lower guide tooth combs 6. During the guide output operation, the upper guide tooth combs 5 guide the long strips of pulp to be smoothly guided out of the upper longitudinal cutting roller 1 through the comb teeth embedded in the upper longitudinal cutting grooves 3, and the lower guide tooth combs 6 guide the long strips of pulp to be smoothly guided out of the lower longitudinal cutting roller 2 through the comb teeth embedded in the lower longitudinal cutting grooves 4. Further, in combination with the characteristics that both the upper longitudinal cutting roller and the lower longitudinal cutting roller are long shaft-shaped structures, in order to facilitate installation, the present application sets the upper guide tooth combs 5 arranged in the upper longitudinal cutting grooves 3 along the length direction to at least three groups, and also sets the lower guide tooth combs 6 arranged in the lower longitudinal cutting grooves 4 along the length direction to at least three groups. More specifically, the comb teeth on each group of upper guide tooth combs 5 and the comb teeth on each group of lower guide tooth combs 6 of the present application are all through-type structures, and each group of upper guide tooth combs 5 containing through-type comb teeth 7 and each group of lower guide tooth combs 6 containing through-type comb teeth 7 are arranged on the frame through the through-type comb teeth 7 at both ends of each of them being located in the corresponding upper longitudinal cutting groove 3 and the corresponding lower longitudinal cutting groove 4. At this time, the hole width of the through-type comb teeth 7 in the middle of the upper guide tooth combs 5 and the lower guide tooth combs 6 is 6-6.06mm, and the spacing between two adjacent holes is 5.95-6mm. The length of the strip holes 8 constituting each through-type comb tooth 7 is 80-120mm. In order to facilitate processing, the two ends of each strip hole 8 are arc-shaped along the thickness direction of the upper guide tooth combs 5 or the lower guide tooth combs 6 to adapt to the diameter of the upper longitudinal cutting hob or the diameter of the lower longitudinal cutting hob.

[0022] Combined with the actual production situation, in order to prevent the upper guide tooth comb 5 and the lower guide tooth comb 6 from rusting and to improve the strength of the entire upper guide tooth comb 5 and the lower guide tooth comb 6 to prevent deformation, each group of upper guide tooth combs 5 and each group of lower guide tooth combs 6 in this application are made of non-corrosive materials such as tin bronze or copper alloy. The thickness of each group of upper guide tooth combs 5 and each group of lower guide tooth combs 6 is 7-10mm, the width is 130-160mm, and the length is 250-260mm. Accordingly, in order to guide the pulp strips as smoothly as possible, the middle through-type comb teeth 7 of each group of upper guide tooth combs 5 and each group of lower guide tooth combs 6 installed in this application are all sunk into the corresponding upper longitudinal cutting groove 3 and the corresponding lower longitudinal cutting groove 49.5-10mm.

[0023] To summarize, the main technical points of the technical solution provided by this application are: the use of a longitudinal knife through-type comb tooth structure ensures a good fit to the longitudinal knife blade cutting area, plays a role in timely peeling of the longitudinally cut material, and solves the problems of material jamming and unsmooth chip removal at the original single-sided comb tooth corners; the longitudinal knife combing device is arranged to include an upper longitudinal knife and a lower longitudinal knife combing structure, which improves the guidance of the slicer longitudinal cutting system for feeding and cutting out materials.

[0024] In summary, the above technical solutions provided by this application are

[0025] 1) The through-type combing device of the present application avoids frequent manual cleaning operations and improves the stability and reliability of pulp longitudinal cutting;

[0026] 2) The longitudinal cutting combing device of the present application improves the guiding performance of the feeding and cutting and discharging of the longitudinal cutting system of the slicer, thereby ensuring the quality of the subsequent cross-cutting slices.

[0027] The technical solution of the present application is further described below through specific embodiments:

[0028] In order to fundamentally solve the problems of sharp corners of single-sided comb teeth of existing slicers, poor chip removal, frequent manual cleaning, etc., and to improve the slicing quality and efficiency of the slicer, the present application provides a device that can ensure stable and reliable combing of long strips of longitudinally cut pulp by the slicer.

[0029] 1) The pulp slicer longitudinal cutting combing device is mainly composed of upper longitudinal comb teeth and lower longitudinal comb teeth.

[0030] 2) The comb teeth are made of tin bronze, copper alloy and other anti-corrosion and reliable strength materials to prevent rust and combing deformation.

[0031] 3) There are 2-4 fixing screw holes at both ends of the single-piece through-type comb teeth, and the fixing holes at both ends are installed on the feeding side and the discharging side of the longitudinal knife respectively.

[0032] 4) The thickness of the single-piece through-type comb teeth is 7-10mm, the width is 130-160mm, and the length is 250-260mm.

[0033] 5) The width of the square hole in the middle of the through-type comb teeth is 6-6.06mm, which is convenient for the insertion of the longitudinal blade and achieves a good fit.

[0034] 6) The square holes in the middle of the through-comb teeth are spaced 5.95-6 mm apart to facilitate the insertion of intermeshing longitudinal blade spaces.

[0035] 7) According to the length of the longitudinal blade, the upper longitudinal blade part can be arranged to include 5-8 through-type comb teeth of the same structure, and the lower longitudinal blade part can be arranged to include 5-8 through-type comb teeth of the same structure.

[0036] 8) According to the longitudinal knife diameter and engagement depth, the longitudinal knife penetrates the comb teeth, that is, the depth of the comb teeth installed and sunk into the longitudinal knife is 9.5-10mm, the length of the square hole of the comb tooth penetration part is 80-120mm (depending on the longitudinal knife diameter), and the penetration section is an arc (the same as the longitudinal knife diameter).

[0037] The technical solution of the present application solves the problem of poor longitudinal cutting and combing effect of pulp cellulose in the pulp slice production process, improves the smooth material feeding and guiding of the cut pulp strips, avoids blockage of material by the sharp corners of the comb teeth on one side, and the through-type combing device makes longitudinal cutting and chip removal smooth, avoids frequent manual cleaning operations, and improves the stability and reliability of pulp longitudinal cutting.

[0038] Embodiment 1

[0039] The pulp slicer longitudinal cutting combing device is mainly composed of upper longitudinal comb teeth and lower longitudinal comb teeth.

[0040] The comb teeth can be made of tin bronze, which can effectively prevent rust and combing deformation.

[0041] Three fixing screw holes can be selected at both ends of a single through-type comb tooth, and the fixing holes at both ends are respectively installed on the feeding side and the discharging side of the longitudinal knife.

[0042] The single-piece through-type comb teeth are 8.5mm thick, 132mm wide and 255mm long.

[0043] The width of the square hole in the middle of the through-type comb teeth is 6.04mm, which facilitates the insertion of the longitudinal blade and achieves a good fit.

[0044] The square holes in the middle of the through-type comb teeth are spaced 5.98mm apart, making it easy to insert the intermeshing longitudinal blade spaces.

[0045] According to the length of the longitudinal blade, the upper longitudinal blade part can be arranged to include 6 through-type comb teeth of the same structure, and the lower longitudinal blade part can be arranged to include 6 through-type comb teeth of the same structure.

[0046] According to the longitudinal knife diameter and engagement depth, the longitudinal knife penetrates the comb teeth, i.e. the comb teeth are installed and sunk into the longitudinal knife to a depth of 9.8mm. The lengths of the square holes in the comb tooth penetration part are 80mm and 120mm on the upper and lower surfaces, and the penetration section is an arc (the same as the longitudinal knife diameter).

[0047] The slicing and combing device can timely comb and export long pulp strips with a longitudinal cutting material cross-section of approximately 6×1.5mm out of the longitudinal cutting system. The production process does not require operators to stop the machine for cleaning the longitudinal cutting. The slicing quality has also been greatly improved, fully meeting the requirements of normal production operations and increasing production efficiency by more than 60%.

Claims

1. A longitudinal cutting combing device for a pulp slicer, comprising a frame, an upper longitudinal cutting roller (1) and a lower longitudinal cutting roller (2), wherein the upper longitudinal cutting roller (1) is provided with a plurality of upper longitudinal cutting grooves (3) extending in the circumferential direction, and the lower longitudinal cutting roller (2) is provided with a plurality of lower longitudinal cutting grooves (4) extending in the circumferential direction, and the upper longitudinal cutting roller (1) and the lower longitudinal cutting roller (2) are arranged on the frame with the cuts of the upper longitudinal cutting roller (1) and the cuts of the lower longitudinal cutting roller (2) meshing with each other, characterized in that: The longitudinal cutting combing device also includes an upper combing and conveying assembly and a lower combing and conveying assembly. During the pulp roll slicing process, the long pulp strips in the upper longitudinal cutting grooves (3) are smoothly guided out of the upper longitudinal cutting roller (1) with the cooperation of the upper combing and conveying assembly, and the long pulp strips in the lower longitudinal cutting grooves (4) are smoothly guided out of the lower longitudinal cutting roller (2) with the cooperation of the lower combing and conveying assembly.

2. The longitudinal cutting and combing device for pulp slicer according to claim 1, characterized in that: The upper combing and conveying assembly comprises at least one group of upper guide tooth combs (5), and the lower combing and conveying assembly comprises at least one group of lower guide tooth combs (6). The upper guide tooth combs (5) guide the long pulp strips to be smoothly guided out of the upper longitudinal cutting roller (1) through the comb teeth embedded in the upper longitudinal cutting grooves (3), and the lower guide tooth combs (6) guide the long pulp strips to be smoothly guided out of the lower longitudinal cutting roller (2) through the comb teeth embedded in the lower longitudinal cutting grooves (4).

3. The longitudinal cutting and combing device for pulp slicer according to claim 2, characterized in that: At least three groups of upper guide tooth combs (5) are arranged in the upper longitudinal cutting groove (3) along the length direction, and at least three groups of lower guide tooth combs (6) are arranged in the lower longitudinal cutting groove (4) along the length direction.

4. The longitudinal cutting and combing device for pulp slicer according to claim 2 or 3, characterized in that: The comb teeth on each group of upper guide tooth combs (5) and the comb teeth on each group of lower guide tooth combs (6) are all through-type structures. Each group of upper guide tooth combs (5) containing through-type comb teeth (7) and each group of lower guide tooth combs (6) containing through-type comb teeth (7) are arranged on the frame with the through-type comb teeth (7) at both ends thereof being located in the corresponding upper longitudinal cutting groove (3) and the corresponding lower longitudinal cutting groove (4).

5. The longitudinal cutting and combing device for pulp slicer according to claim 4, characterized in that: Each group of upper guide tooth combs (5) and each group of lower guide tooth combs (6) are made of non-corrosive materials such as tin bronze or copper alloy.

6. The longitudinal cutting and combing device for pulp slicer according to claim 5, characterized in that: The hole widths of the through-type comb teeth (7) in the middle of the upper guide tooth comb (5) and the lower guide tooth comb (6) are both 6-6.06 mm, and the distance between two adjacent holes is 5.95-6 mm.

7. The longitudinal cutting and combing device for pulp slicer according to claim 6, characterized in that: Each group of upper guide tooth combs (5) and each group of lower guide tooth combs (6) have a thickness of 7-10 mm, a width of 130-160 mm, and a length of 250-260 mm.

8. The longitudinal cutting and combing device for pulp slicer according to claim 7, characterized in that: The length of the strip-shaped holes (8) constituting each through-type comb tooth (7) is 80-120 mm.

9. The longitudinal cutting and combing device for pulp slicer according to claim 8, characterized in that: Both ends of each strip hole (8) are arc-shaped along the thickness direction of the upper guide tooth comb (5) or the lower guide tooth comb (6) and adapted to the diameter of the upper longitudinal cutting hob or the diameter of the lower longitudinal cutting hob.

10. The longitudinal cutting and combing device for pulp slicer according to claim 9, characterized in that: The middle through-type comb teeth (7) of each group of upper guide tooth combs (5) and each group of lower guide tooth combs (6) that are installed properly are sunk into the corresponding upper longitudinal cutting grooves (3) and the corresponding lower longitudinal cutting grooves (4) by 9.5-10 mm.

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