A punching device for forming paper

Abstract

The present application relates to the technical field of cigarette equipment, and in particular to a punching device for forming paper, the punching device comprises an upper bracket, a lower bracket, a roller, a roller cutter and a transmission member, the transmission member comprises a first gear and a second gear, the first gear is coaxially arranged with the roller, and the second gear is coaxially arranged with the roller cutter; the roller and the roller cutter are arranged oppositely, and the first gear and the second gear are meshed with each other; the upper bracket and the lower bracket are arranged oppositely, and the upper bracket and the lower bracket are rotatably connected, one of the rollers or the roller cutter is rotatably connected to the upper bracket, and the other of the rollers or the roller cutter is rotatably connected to the lower bracket; any one of the rollers or the roller cutter is connected to a power member; the power member drives the roller and the roller cutter to rotate in opposite directions. The gap between the roller cutter and the roller can be adjusted by balancing the rotation comb swing angle of the upper bracket around the lower bracket, so that when the forming paper tape passes through the gap between the roller cutter and the roller, the roller cutter and the roller uniformly squeeze the forming paper to punch holes, ensuring the uniformity of the punching size.

Description

Technical Field

[0001] The present application relates to the technical field of cigarette making equipment, and in particular to a punching device for shaping paper. Background Art

[0002] The production of cigarettes is inseparable from the manufacture of filter rods, and the KDF2 filter rod forming machine is a common equipment for forming composite filter rods. In the process of composite filter rod forming, due to product design requirements, it is necessary to perform horizontal punching on the forming paper used to form the composite filter rod, that is, the arrangement direction of the holes is perpendicular to the direction of the forming paper conveying; but the KDF2 filter rod forming machine does not have the horizontal punching function.

[0003] In order to ensure that the original KDF2 filter rod forming machine without the horizontal punching function can also punch the shaping paper horizontally without replacement, the existing method is to equip the original KDF2 filter rod forming machine with a punching device, and the added punching device punches the shaping paper drawn out of the KDF2 filter rod forming machine horizontally. However, in the existing punching device, since the gap between the rolling cutter and the roller in the punching device is not adjustable, there is a problem of uneven punching size when the shaping paper is squeezed and punched. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a punching device for shaping paper, which avoids the problems of the existing punching device in the background art that the gap between the roller and the roller is not adjustable and the size of the holes in the shaping paper is uneven.

[0005] The technical solution provided by the present invention is as follows:

[0006] A punching device for shaping paper comprises an upper bracket, a lower bracket, a roller, a roller cutter and a transmission member, wherein the transmission member comprises a first gear and a second gear.

[0007] The first gear is coaxially arranged with the roller, and the second gear is coaxially arranged with the hob; the roller and the hob are arranged opposite to each other, and the first gear and the second gear are meshed with each other;

[0008] The upper bracket is arranged opposite to the lower bracket, and the upper bracket and the lower bracket are rotatably connected; the upper bracket can rotate and pivot around the lower bracket;

[0009] One of the rollers or the cutters has an axis rotatably connected to the upper bracket, and the other of the rollers or the cutters has an axis rotatably connected to the lower bracket; and any one of the rollers or the cutters has an axis connected to a power piece, which drives the rollers and the cutters to rotate in opposite directions.

[0010] Furthermore, the punching device comprises: an upper shaft, a lower shaft and a shaft sleeve; the upper bracket is provided with an upper through hole and a lower through hole located parallel to and below the upper through hole.

[0011] One of the roller and the hob is mounted on the upper shaft, the other of the roller and the hob is mounted on the lower shaft, and the first gear and the second gear are respectively correspondingly arranged on the upper shaft and the lower shaft on which the roller and the hob are mounted;

[0012] The upper shaft is rotatably inserted into the upper through hole, and the shaft sleeve is rotatably inserted into the lower through hole and fixedly connected to the lower bracket, so that the upper bracket can pivot relative to the lower bracket around the shaft sleeve;

[0013] The lower shaft is also rotatably connected to the lower bracket. The lower shaft is rotatably inserted into the shaft sleeve and is parallel to the upper shaft. The axis of the lower shaft is parallel to the axis of the shaft sleeve and are eccentric to each other.

[0014] Further, the upper shaft is fixedly fitted with a first gear, the lower shaft is fixedly fitted with a second gear meshing with the first gear, and the second gear is also offset from the first gear along the axial direction of the upper shaft.

[0015] Furthermore, the hob includes a cutter roller fixedly mounted on the upper shaft or the lower shaft, and a plurality of blades spaced apart and arranged on the cutter roller along the circumference of the cutter roller.

[0016] Furthermore, the periphery of the knife roller is provided with not less than the number of notches as the blades and arranged in a circumferential direction of the knife roller. The groove wall of each notch includes a radial groove wall extending in the radial direction of the knife roller and a bottom groove wall intersecting the radial groove wall. The blade is mounted on the radial groove wall, and the blade also protrudes outward from the knife roller in the radial direction of the knife roller.

[0017] Furthermore, the punching device also includes an adjusting fastener; the upper bracket is also provided with a cutting groove which is communicated with the upper through hole and extends radially outward along the upper through hole, the cutting groove cuts through the hole wall on one side of the upper through hole to form an upper part and a lower part which are disconnected from each other, the adjusting fastener connects the upper part and the lower part, and the adjusting fastener drives the upper part together with the upper shaft to move closer to the lower part.

[0018] Furthermore, a locking assembly is provided between the upper bracket and the lower bracket for locking the pivotal position of the upper bracket relative to the lower bracket.

[0019] Furthermore, the locking assembly includes a matching locking structure provided on one of the upper bracket and the lower bracket, a locking structure provided on the other of the upper bracket and the lower bracket, and a unlocking operating member for driving the locking structure to release the matching locking structure; the unlocking operating member and the locking structure are movably arranged on the upper bracket or the lower bracket where the locking structure is located.

[0020] Furthermore, the upper bracket has at least an open position and a closed position relative to the lower bracket during the process of pivoting around the shaft sleeve, and the locking assembly locks the upper bracket and the lower bracket together when the upper bracket is switched to the closed position. An elastic member or a magnetic member is also provided between the upper bracket and the lower bracket for driving the upper bracket to switch to the open position.

[0021] Furthermore, the elastic member is assembled on one of the upper bracket and the lower bracket, and the elastic member elastically abuts against the other of the upper bracket and the lower bracket when the upper bracket is switched to the covering position.

[0022] Beneficial effects:

[0023] Compared with the prior art, the power parts of the punching device of the present application synchronously drive the cutter and the roller to rotate in opposite directions. When punching, the shaping paper passes through the gap between the roller and the cutter, and the cutter and the roller rotating in opposite directions act on the two sides of the shaping paper respectively, so as to realize the extrusion and punching of the shaping paper (shaping paper tape). The gap between the cutter and the roller can be adjusted by balancing the rotation comb swing angle of the upper bracket around the lower bracket, so that when the shaping paper tape passes through the gap between the cutter and the roller, the cutter and the roller evenly extrude the shaping paper to punch holes, thereby ensuring the uniformity of the size of the holes on the left and right sides of the shaping paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a perspective view of the punching device for shaping paper of the present invention when the upper support is switched to the covering position.

[0026] Figure 2 This is a perspective view of the punching device for shaping paper of the present invention when the upper support is switched to the open position.

[0027] Figure 3 yes Figure 1 The illustrated three-dimensional view of the punching device for shaping paper after the upper bracket, the adjusting fastener, the elastic member, the locking assembly and the lower bracket are hidden.

[0028] Figure 4 yes Figure 3 Floor plan viewed from front to back.

[0029] Figure 5 yes Figure 2The illustrated three-dimensional view of the punching device for shaping paper after the upper bracket, the adjusting fastener, the elastic member, the locking assembly and the lower bracket are hidden.

[0030] Figure 6 yes Figure 1 A three-dimensional view of the punching device for the shaping paper is shown after the lower support is hidden.

[0031] Figure 7 This is a perspective view of an upper support in the punching device for shaping paper of the present invention.

[0032] Figure 8 This is a perspective view of a roller cutter in the punching device for shaping paper of the present invention.

[0033] Fig. 9 yes Figure 8 Exploded perspective view of the hob shown.

[0034] Fig.10 It is a three-dimensional view of the lower bracket in the punching device for shaping paper of the present invention and the lower shaft, lower gear and shaft sleeve on the lower bracket.

[0035] Fig.11 yes Fig.10 A perspective view after the lower bracket is hidden.

[0036] Fig.12 yes Fig.11 Floor plan viewed from front to back.

[0037] Fig.13 It is a plan view showing the upper shaft, hob, lower shaft, sleeve and roller in the closed position.

[0038] Fig.14 It is a plan view showing the upper shaft, hob, lower shaft, sleeve and roller in the open position.

[0039] Fig.15 is Fig.13 A plan view of the molding paper is shown above.

[0040] Fig.16 This is a plan view of the punched shaping paper.

[0041] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0043] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] 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 this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0045] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0046] like Figure 1-16 As shown, an embodiment of the present invention provides a punching device for shaping paper, comprising an upper bracket, a lower bracket, a roller, a roller cutter and a transmission member, wherein the transmission member comprises a first gear and a second gear, wherein the first gear is coaxially arranged with the roller, and the second gear is coaxially arranged with the roller cutter; the roller and the roller cutter are arranged opposite to each other, and the first gear and the second gear are meshed with each other; the upper bracket and the lower bracket are arranged opposite to each other, and the upper bracket and the lower bracket are rotatably connected; the upper bracket can rotate and pivot around the lower bracket; one of the rollers or the roller cutter is rotatably connected to the upper bracket, and the other of the rollers or the roller cutter is rotatably connected to the lower bracket; any one of the rollers or the roller cutter is connected to a power member, and the power member drives the roller and the roller cutter to rotate in opposite directions. The power member is preferably a rotary motor.

[0047] In the above technical scheme, the power part synchronously drives the cutter and the roller to rotate in opposite directions. When punching, the shaping paper passes through the gap between the roller and the cutter, and the cutter and the roller rotating in opposite directions act on the two sides of the shaping paper respectively, so as to realize the extrusion and punching of the shaping paper (shaping paper tape). The gap between the cutter and the roller can be adjusted by balancing the rotation comb swing angle of the upper bracket around the lower bracket, so that when the shaping paper tape passes through the gap between the cutter and the roller, the cutter and the roller evenly extrude the shaping paper to punch holes, thereby ensuring the uniformity of the size of the holes on the left and right sides of the shaping paper.

[0048] For details, please refer to Figure 1 , Fig.15 and Fig.16 The punching device 100 for shaping paper of the present invention is used to punch holes in the shaping paper 200 being transported in the horizontal direction, so that the arrangement direction of the row of small holes punched is perpendicular to the length direction of the shaping paper 200. Fig.16 For example, in Fig.15 In the embodiment, the shaping paper 200 can be conveyed from left to right or from right to left, and the roller 50 and the roller 60 described below rotate synchronously with each other, so the synchronously rotating roller 50 and the roller 60 squeeze and punch a row of small holes evenly on the shaping paper 200 being conveyed through squeezing, thereby achieving the purpose of horizontally punching the shaping paper 200 being conveyed.

[0049] Combination Figures 2 to 7 The punching device 100 for forming paper of the present invention comprises an upper bracket 10, a lower bracket 20, an upper shaft 30, a lower shaft 40, a roller 50, a roller 60, an adjusting fastener 70 and a sleeve 80. The upper bracket 10 is provided with a circular upper through hole 11, a circular lower through hole 12 located parallel to and corresponding to the lower side of the circular upper through hole 11, and a cutting through groove 13 communicating with the circular upper through hole 11 and extending outwardly in the radial direction of the circular upper through hole 11. For example, Figure 7 In the embodiment, the circular lower through hole 12 is located directly below the circular upper through hole 11, so that the circular upper through hole 11 and the circular lower through hole 12 are aligned vertically. Of course, according to actual needs, the circular lower through hole 12 can also be made to be located obliquely below the circular upper through hole 11, so it is not necessary to Figure 7The cut-off groove 13 cuts off the hole wall on one side of the circular upper through hole 11 to form an upper part 111 and a lower part 112 that are disconnected from each other, so that the upper part 111 is suspended relative to the lower part 112 and can be bent and deformed relative to the lower part 112 to a certain extent, thereby meeting the need for the upper part 111 to move closer to or away from the lower part 112. The upper shaft 30 is rotatably inserted into the circular upper through hole 11, so that the upper shaft 30 can rotate relative to the upper bracket 10, and correspondingly, the upper shaft 30 and the circular upper through hole 11 are clearance-fitted. The adjusting fastener 70 is connected to the upper part 111 and the lower part 112, so that the adjusting fastener 70 also drives the upper part 111 together with the upper shaft 30 to be adjusted close to the lower part 112. For example, the adjusting fastener 70 is a screw that passes through the upper part 111 and is threadedly connected to the lower part 112, so that when the screw is screwed into the lower part 112, the upper part 111 together with the upper shaft 30 is driven to be adjusted close to the lower part 112, thereby facilitating the adjustment of the upper part 111 by the adjusting fastener 70. Of course, according to actual needs, the adjusting fastener 70 can also be a combination of bolts and nuts, so it is not limited to the above.

[0050] like Figures 5 to 7 As shown, the sleeve 80 is rotatably mounted in the circular lower through hole 12 and is fixedly connected to the lower bracket 20, so that the sleeve 80 and the lower bracket 20 cannot rotate relative to each other. Preferably, Figure 2 In the embodiment, the sleeve 80 is fixedly connected to the lower bracket 20 by a fastening pin 81, that is, the fastening pin 81 fastens the sleeve 80 and the lower bracket 20 along the axial direction of the sleeve 80 to prevent the sleeve 80 from rotating relative to the lower bracket 20. Of course, the fixing method of the sleeve 80 and the lower bracket 20 can also be other, so it is not limited to the above. Figure 2 Since the shaft sleeve 80 is fixed to the lower bracket 20, and the shaft sleeve 80 is rotatably mounted in the circular lower through hole 12, the upper bracket 10 can be pivoted relative to the lower bracket 20 around the shaft sleeve 80; just because the upper bracket 10 can be pivoted relative to the lower bracket 20 around the shaft sleeve 80, during the process of the upper bracket 10 pivoting around the shaft sleeve 80, the upper bracket 10 can be made to have at least a certain degree of freedom relative to the lower bracket 20. Figure 2 Open position shown and Figure 1 The lower shaft 40 is rotatably inserted into the sleeve 80 to meet the need for the lower shaft 40 to rotate relative to the sleeve 80; the lower shaft 40 is parallel to the upper shaft 30, and the axis C1 of the lower shaft 40 is parallel to the axis C2 of the sleeve 80 and is eccentric to each other. Figure 3 or Fig.12 As shown, the axis C1 of the lower shaft 40 does not coincide with the axis C2 of the sleeve 80 and is eccentric to the axis C2, which causes the distance D between the upper shaft 30 and the lower shaft 40 to change as the upper bracket 10 pivots around the axis C2 of the sleeve 80. Fig.13 and Fig.14In, due to Fig.14 The upper bracket 10 in the embodiment has been pivoted to the open position around the axis C2 of the sleeve 80, so that the distance D between the upper shaft 30 and the lower shaft 40 is greater than Fig.13 The distance D between the upper shaft 30 and the lower shaft 40 in the drawing is convenient for the quick replacement of the shaping paper 200; the lower shaft 40 is also rotatably connected to the lower bracket 20 to meet the need that the lower shaft 40 can rotate relative to the lower bracket 20. The roller 50 is fixedly mounted on the upper shaft 30 to meet the need that the roller 50 rotates with the upper shaft 30. The roller 60 is fixedly mounted on the lower shaft 40 to meet the need that the roller 60 rotates with the lower shaft 40, and the roller 60 also cooperates with the roller 50 for rolling. Of course, according to actual needs, the roller 50 can be mounted on the lower shaft 40 and the roller 60 can be mounted on the upper shaft 30, so it is not limited to the above. Therefore, when the upper bracket 10 is pivoted around the shaft sleeve 80, for example, Fig.13 When the upper bracket 10 is pivoted clockwise around the shaft sleeve 80 to the open position, the pivoted upper bracket 10 adjusts the gap 91 between the roller 50 and the roller 60 for the forming paper 200 to pass through in the direction of increasing the gap 91. When the upper bracket 10 is switched to the open position, the corresponding gap 91 is the largest. Fig.14 On the contrary, when Fig.14 When the upper bracket 10 is pivoted counterclockwise around the shaft sleeve 80 to the covering position, the pivoted upper bracket 10 adjusts the gap 91 between the roller 50 and the roller 60 for the forming paper 200 to pass through in the direction of reducing the gap 91. When the upper bracket 10 is switched to the covering position, the corresponding gap 91 is the smallest. Fig.13 More specifically, as follows:

[0051] like Figure 8 and Fig. 9 As shown, the hob 50 includes a cutter roller 51 fixedly mounted on the upper shaft 30 and a plurality of blades 52 spaced and arranged on the cutter roller 51 along the circumference of the cutter roller 51. The blades 52 are detachably mounted on the cutter roller 51. The purpose of this design is that when the blades 52 are worn, only the blades 52 need to be replaced alone, without replacing the cutter roller 51 together. Therefore, replacement is quick, making maintenance very simple. Specifically, in Figure 8 and Fig. 9In the embodiment, the periphery of the cutter roller 51 is provided with notches 51a, the number of which is the same as that of the blades 52 and which are arranged spaced apart along the circumference of the cutter roller 51. The groove wall of each notch 51a includes a radial groove wall 511 extending along the radial direction of the cutter roller 51 and a bottom groove wall 512 intersecting the radial groove wall 511. The cutter roller 52 is assembled at the radial groove wall 511, and the cutter roller 52 also protrudes outward from the cutter roller 51 along the radial direction of the cutter roller 51. The purpose of such design is to make the cutter roller 52 be arranged and fixed on the cutter roller 51 along the radial extension of the cutter roller 51, on the one hand, to ensure the reliability of the fixation between the cutter roller 52 and the cutter roller 51, and on the other hand, to make the cutter roller 52 squeeze and punch holes in the shaping paper 200 along the radial direction of the cutter roller 51 with the cooperation of the roller 60, thereby ensuring the quality of the extrusion and punching. It should be noted that, according to actual needs, the number of the notches 51a can be set to be more than the blades 52, in which case the extra notches 51a are not equipped with blades 52; in addition, the number of blades 52 is determined by how many rows of small holes need to be punched on the shaping paper 200 when the roller 50 rolls one circle. For example, the roller 50 can punch three rows of small holes, four rows of small holes, or five rows of small holes at equal intervals on the shaping paper 200 when it rolls one circle.

[0052] like Figure 1 and Figure 2 As shown, in order to facilitate paper loading, the upper bracket 10 is made to pivot relative to the lower bracket 20 with at least Figure 1 The closed position shown and Figure 2 To prevent the upper bracket 10 from accidentally pivoting relative to the lower bracket 20 after switching to the closed position, a locking assembly 92 is provided between the upper bracket 10 and the lower bracket 20. The locking assembly 92 locks the upper bracket 10 and the lower bracket 20 together when the upper bracket 10 switches to the closed position. Figure 1 , Figure 2 and Figure 6 In the embodiment, the locking assembly 92 includes a matching lock structure 921 disposed on the lower bracket 20, a locking structure 922 disposed on the upper bracket 10, and a release operating member 923 for driving the locking structure 922 to release the matching lock structure 921; the release operating member 923 and the locking structure 922 are each movably arranged on the upper bracket 10 where the locking structure 922 is located, so as to ensure that when the user operates the release operating member 923, the locking structure 922 and the matching lock structure 921 can be released by the release operating member 923, thereby allowing the upper bracket 10 to switch to the open position relative to the lower bracket 20. For example, in Figure 1 and Figure 2In the embodiment, the locking structure 922 and the matching lock structure 921 are respectively barb structures, and the locking structure 922 is formed at the lower end of the unlocking operating member 923, and the middle part of the unlocking operating member 923 is pivotally connected to the upper bracket 10, so that the upper end of the unlocking operating member 923 and the lower end of the unlocking operating member 923 form a lever structure. Therefore, when the user applies force to the upper end of the unlocking operating member 923, the locking structure 922 and the matching lock structure 921 at the lower end of the unlocking operating member 923 are driven to unlock, thereby improving the convenience of the unlocking operation. In order to enable the upper bracket 10 in the closed position to automatically switch to the open position after unlocking, Figure 1 , Figure 2 and Figure 6 In the figure, an elastic member 93 is provided between the upper bracket 10 and the lower bracket 20, which is used to drive the upper bracket 10 to switch to the open position. The elastic member 93 is assembled on the upper bracket 10, and the elastic member 93 elastically abuts against the lower bracket 20 when the upper bracket 10 switches to the covering position; of course, according to actual needs, the elastic member 93 can also be assembled on the lower bracket 20, so as to elastically abut against the upper bracket 10 when the upper bracket 10 switches to the covering position, and can also provide elastic force for the upper bracket 10 to switch to the open position; in addition, the elastic member 93 also assists the locking assembly 92 to lock the upper bracket 10 and the lower bracket 20 when the upper bracket 10 switches to the covering position. The elastic member is preferably a spring; it should be noted that when the locking assembly 92 locks the upper bracket 10 and the lower bracket 20, the gap 91 between the hob 50 and the roller 60 is adjusted by adjusting the fastener 70. By adjusting the fastener 70, the upper part 111 and the upper shaft 30 are driven toward the lower part 112, so that the gap 91 between the hob 50 and the roller 60 can be finely adjusted; in addition, Figure 1 and Figure 2 In the embodiment, the locking structure 922 is indirectly provided on the upper bracket 10 by forming a release operating member 923. Of course, the locking structure 922 can also be directly provided on the upper bracket 10. In this case, the release operating member 923 and the locking structure 922 can be driven to move by a flexible traction member or other linkage structure similar to the traction member, so as to achieve the purpose of releasing the lock between the locking structure 922 and the matching lock structure 921. In addition, according to actual needs, the matching lock structure 921 can be provided on the upper bracket 10, and correspondingly, the release operating member 923 and the locking structure 922 are provided on the lower bracket 20, so as to achieve the purpose of the locking assembly 92 locking the upper bracket 10 and the lower bracket 20. Finally, the elastic member 93 can be replaced by a magnetic member, that is, a magnetic member is respectively installed at the corresponding positions of the upper bracket 10 and the lower bracket 20, so as to achieve the purpose of automatically pivoting the upper bracket 10 relative to the lower bracket 20 to the open position by means of the magnetic repulsion between the magnetic members.

[0053] Among them, since the upper bracket 10 is designed to have at least an open position and a closed position relative to the lower bracket 20, when replacing the shaping paper 200, with the help of the cooperation of the locking assembly 92 and the elastic member 93, the operator only needs to operate the unlocking operating member 923 when opening the upper bracket 10, and the elastic member 93 can make the upper bracket 10 pivot and open relative to the lower bracket 20, thereby achieving the purpose of separating the roller 50 from the roller 60; after inserting the shaping paper 200, the operator only needs to switch the upper bracket 10 to the closed position relative to the lower bracket 20, so that the locking assembly 92 automatically resets and locks the upper bracket 10 and the lower bracket 20 with the assistance of the elastic force provided by the elastic member 93.

[0054] like Figures 3 to 6 As shown, the upper shaft 30 is fixedly fitted with an upper gear 94, i.e., the first gear; so that the upper gear 94 rotates with the upper shaft 30, and the upper gear 94 and the hob 50 are arranged on opposite sides of the upper bracket 10, so that the upper bracket 10 can more reliably support the upper shaft 30; the lower shaft 40 is fixedly fitted with a lower gear 95, i.e., the second gear, which meshes with the upper gear 94; so that the lower gear 95 rotates with the lower shaft 40, and the lower gear 95 and the roller 60 are arranged on opposite sides of the lower bracket 20, so that the lower bracket 20 can more reliably support the lower shaft 30; the lower gear 95 is also misaligned with the upper gear 94 along the axial direction of the upper shaft 30, i.e., the tooth width of one is smaller than the tooth width of the other, so that a part of the one with a larger tooth width does not mesh with the one with a smaller tooth width, as shown in the state. Figure 3 As shown, the purpose of such design is to reduce the transmission gap between the upper gear 94 and the lower gear 95, ensure the precision of synchronous rotation of the roller 50 and the roller 60, and prevent the roller 50 and the roller 60 from being broken due to the speed difference. It should be noted that since the upper shaft 30 and the lower shaft 40 are ensured to rotate synchronously through the upper gear 94 and the lower gear 95, when the upper shaft 30 is driven to rotate by external power (such as but not limited to a rotary motor), the lower shaft 40 can be synchronously rotated. Similarly, the upper shaft 30 can also be rotated by driving the lower shaft 40.

[0055] like Figure 1 , Figure 2 , Figure 6 , Figure 7 and Fig.10 As shown, the upper bracket 10 includes a base frame 10a and two side wings 10b protruding in the same direction from the base frame 10a, and the lower bracket 20 includes a base frame 20a and two side wings 20b protruding in the same direction from the base frame 20a. The two side wings 10b of the upper bracket 10 are located between the two side wings 20b of the lower bracket 20. Figure 2As shown, the lower bracket 20 provides support for the pivoting movement of the upper bracket 10 from both sides, thereby improving the smoothness and stability of the pivoting of the upper bracket 10 relative to the lower bracket 20; the two side wings 10b of the upper bracket 10 are each provided with a circular upper through hole 11, a cut-off through groove 13 and a circular lower through hole 12, and the circular lower through holes 12 on the two side wings 10b of the upper bracket 10 are each sleeved with a shaft sleeve 80, as shown in the state Figure 6 As shown; the cutter 50 and the roller 60 are respectively located between the two side wings 10b of the upper bracket 10, so as to improve the bearing reliability of the upper shaft 30 on the cutter 50 and the bearing reliability of the lower shaft 40 on the roller 60 by the two side wings 10b; the lower shaft 40 is rotatably connected to the two side wings 20b of the lower bracket 20, so as to improve the bearing reliability of the lower bracket 20 on the lower shaft 40 by means of the rotatable connection between the two side wings 20b and the lower shaft 40. Specifically, in Figure 6 and Figure 7 In the figure, both side wings 10b of the upper bracket 10 are respectively provided with reinforcing connecting ribs 10c located on the side of the circular upper through hole 11 along the axial direction of the circular upper through hole 11. The reinforcing connecting ribs 10c are separated from the upper part 111 and are laterally connected to the lower part 112. This design increases the rigidity of the lower part 112 relative to the upper part 111, and further improves the reliability of the adjusting fastener 70 driving the upper part 111 together with the upper shaft 30 to adjust toward the lower part 112, thereby ensuring the reliability of fine-tuning the gap 91 between the hob 50 and the roller 60. It should be noted that when the upper bracket 10 and the lower bracket 20 each include a base frame 10a (20a) and two side wings 10b (20b) protruding in the same direction from the base frame 10a (20a), the aforementioned locking assembly 92 is preferably arranged between the base frame 10a and the base frame 20a, the elastic member 93 is preferably assembled on the base frame 10a or the base frame 20a, and the sleeve 80 is fixedly connected to the side wing 20b by means of a fastening pin 81.

[0056] It is worth noting that the above-mentioned position is established based on Figure 1 As a benchmark, Figure 1 In the figure, the direction indicated by arrow A is from top to bottom, and the direction indicated by double arrow B is axial. In addition, the aforementioned parallelism between the circular upper through hole 11 and the circular lower through hole 12 means that the center lines of the circular upper through hole 11 and the circular lower through hole 12 are parallel. Fig.14As shown, when the upper bracket 10 is switched to the open position, the gap 91 between the roller 50 and the roller 60 is the largest, so that the shaping paper 200 is easily replaced, that is, the shaping paper 200 passes through the gap 91; then, the pivot position of the upper bracket 10 relative to the lower bracket 20 has multiple adjustable intermediate positions in addition to the aforementioned open position and closed position. At this time, the locking assembly 92 may include a latch and a plurality of pin holes spaced apart and arranged along the axis C2 of the sleeve 80, that is, the pin holes form a matching lock structure, and the latch is used to cooperate with the pin holes. The latch is axially slidably inserted into one of the upper bracket 10 and the lower bracket 20, and all the pin holes are formed in the other of the upper bracket 10 and the lower bracket 20. Therefore, when the upper bracket 10 is pivoted relative to the lower bracket 20 so that the latch is aligned with one of all the pin holes, the latch is inserted into the aligned pin hole, thereby achieving the purpose of locking the pivotal position of the upper bracket 10 and the lower bracket 20 with the locking assembly 92.

[0057] The punching device for shaping paper of the present application, by forming the cut-off through groove 13 of the upper part 111 and the lower part 112 disconnected from each other on the hole wall of one side of the circular upper through hole 11 and the cooperation of the adjusting fastener 70, the adjusting fastener 70 adjusts the gap 91 between the roller 50 on the upper shaft 30 and the roller 60 on the lower shaft 40 during the adjustment process of driving the upper part 111 together with the upper shaft 30 to move close to the lower part 112, and then combines the "upper bracket 10 can rotate around the shaft sleeve 80 relative to the lower shaft 40 because the shaft sleeve 80 is rotatably mounted in the circular lower through hole 12 and is fixedly connected to the lower bracket 20" The bracket 20 pivots” and “the lower shaft 40 rotatably connected to the lower bracket 20 is rotatably inserted into the sleeve 80 and its axis C1 is parallel to and eccentric to the axis C2 of the sleeve 80”, so that the upper bracket 10 pivots around the axis C2 of the sleeve 80 instead of pivoting around the axis C1 of the lower shaft 40. Since the axis C2 of the sleeve 80 is parallel to and eccentric to the axis C1 of the lower shaft 40, the gap 91 between the hob 50 on the upper shaft 30 and the roller 60 on the lower shaft 40 is changed during the pivoting of the upper bracket 10 around the axis C2 of the sleeve 80. For example, Fig.13 The upper bracket 10 in the covering position is switched around the axis C2 of the sleeve 80 to Fig.14 During the process of the open position shown in FIG. 1 , the distance D between the upper shaft 30 and the lower shaft 40 gradually increases, and the gap 91 between the hob 50 on the upper shaft 30 and the roller 60 on the lower shaft 40 is correspondingly enlarged. Fig.14 That is to say, by adopting the adjustable design of the roller cutter 50 and the eccentric design of the sleeve 80 relative to the lower shaft 40, the gap 91 between the roller cutter 50 and the roller 60 can be adjusted accordingly according to the balance of the closure of the upper bracket 10 and the lower bracket 20, thereby ensuring the uniformity of the left and right hole sizes during extrusion punching.

[0058] It should be noted that the parts not described in detail in the above technical solutions are prior art.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A punching device for shaping paper, characterized in that: It includes an upper bracket, a lower bracket, a roller, a hob and a transmission member, wherein the transmission member includes a first gear and a second gear. The first gear is coaxially arranged with the roller, and the second gear is coaxially arranged with the hob; the roller and the hob are arranged opposite to each other, and the first gear and the second gear are meshed with each other; The upper bracket is arranged opposite to the lower bracket, and the upper bracket and the lower bracket are rotatably connected, and the upper bracket can rotate and pivot around the lower bracket; the axis of one of the rollers or the rollers is rotatably connected to the upper bracket, and the axis of the other of the rollers or the rollers is rotatably connected to the lower bracket; Any one of the shafts of the roller or the hob is connected to a power piece, and the power piece drives the roller and the hob to rotate in opposite directions; The punching device also includes: an upper shaft, a lower shaft and a shaft sleeve; The upper bracket is provided with an upper through hole and a lower through hole located parallel to and below the upper through hole. One of the roller and the hob is mounted on the upper shaft, the other of the roller and the hob is mounted on the lower shaft, and the first gear and the second gear are respectively correspondingly arranged on the upper shaft and the lower shaft on which the roller and the hob are mounted; The upper shaft is rotatably inserted into the upper through hole, and the shaft sleeve is rotatably inserted into the lower through hole and fixedly connected to the lower bracket, so that the upper bracket can pivot relative to the lower bracket around the shaft sleeve; The lower shaft is also rotatably connected to the lower bracket. The lower shaft is rotatably inserted into the shaft sleeve and is parallel to the upper shaft. The axis of the lower shaft is parallel to the axis of the shaft sleeve and are eccentric to each other.

2. The punching device for shaping paper according to claim 1, characterized in that: The upper shaft is fixedly fitted with a first gear, the lower shaft is fixedly fitted with a second gear meshing with the first gear, and the second gear is also offset from the first gear along the axial direction of the upper shaft.

3. The punching device for shaping paper according to claim 1, characterized in that: The roller cutter comprises a knife roller fixedly mounted on the upper shaft or the lower shaft, and a plurality of blades spaced and arranged on the knife roller along the circumference of the knife roller.

4. The punching device for shaping paper according to claim 3, characterized in that: The periphery of the knife roller is provided with notches, the number of which is no less than that of the blades and which are arranged spaced apart along the circumference of the knife roller. The groove wall of each notch includes a radial groove wall extending in the radial direction of the knife roller and a bottom groove wall intersecting the radial groove wall. The blade is mounted on the radial groove wall, and the blade also protrudes outward from the knife roller in the radial direction of the knife roller.

5. The punching device for shaping paper according to claim 2, characterized in that: The punching device also includes an adjusting fastener; the upper bracket is also provided with a cutting groove which is communicated with the upper through hole and extends radially outward from the upper through hole, the cutting groove cuts through the hole wall on one side of the upper through hole to form an upper part and a lower part which are disconnected from each other, the adjusting fastener connects the upper part and the lower part, and the adjusting fastener drives the upper part together with the upper shaft to move closer to the lower part.

6. The punching device for shaping paper according to any one of claims 1 to 5, characterized in that: A locking assembly is provided between the upper bracket and the lower bracket for locking the pivot position of the upper bracket relative to the lower bracket.

7. The punching device for shaping paper according to claim 6, characterized in that: The locking assembly includes a matching locking structure provided on one of the upper bracket and the lower bracket, a locking structure provided on the other of the upper bracket and the lower bracket, and a unlocking operating member used to drive the locking structure to release the matching locking structure; the unlocking operating member and the locking structure are movably arranged on the upper bracket or the lower bracket where the locking structure is located.

8. The punching device for shaping paper according to claim 7, characterized in that: The upper bracket has at least an open position and a closed position relative to the lower bracket during the process of pivoting around the shaft sleeve; the locking assembly locks the upper bracket and the lower bracket together when the upper bracket is switched to the closed position, and an elastic member or a magnetic member is also provided between the upper bracket and the lower bracket for driving the upper bracket to switch to the open position.

9. The punching device for shaping paper according to claim 8, characterized in that: The elastic member is assembled on one of the upper bracket and the lower bracket, and the elastic member elastically abuts against the other of the upper bracket and the lower bracket when the upper bracket is switched to the covering position.

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