A box stitching machine head

Abstract

The invention discloses a nailing machine head, which realizes wire feeding and stamping drive through a driving device, a wire introduction block is arranged on the periphery of a knife group fixing frame to realize wire introduction, a vertical shearing knife is arranged in the middle of the knife group fixing frame, a U-shaped groove is arranged on the side of the vertical shearing knife, a stamping knife is arranged in the U-shaped groove, and the stamping knife realizes vertical cyclic stamping in the U-shaped groove; a guide inclined groove is arranged on the side of the vertical shearing knife toward the entrance, when the vertical shearing knife continues to descend after shearing the steel wire, the wire feeding action continues and the steel wire is moved forward along the guide inclined groove, an elastic pressure block is arranged on the side of the stamping knife, and the steel wire entering the side of the stamping knife is squeezed in real time by the elastic pressure block, and when the stamping knife and the vertical shearing knife are lifted and withdrawn, the steel wire returns to the lower part of the vertical shearing knife under the squeezing of the elastic pressure block to realize another shearing and stamping action.

Description

Technical Field

[0001] The invention relates to the technical field of cardboard box stapling processing, in particular to a box stapling machine head. Background Art

[0002] When the existing box nailing machines are in operation, the head design volume of the box nailing machines is relatively large. When realizing continuous operation, there must be a certain time gap between the wire feeding action and the nailing action of the box nailing machine head. That is, when the nail punching action is realized, the wire feeding action is briefly interrupted. This interval restricts the number of times the box nailing machine head runs per unit time, and it is impossible to realize high-speed box nailing in the true sense.

[0003] Furthermore, in the prior art, due to the intermittent wire feeding process of the machine head, relatively large noise is generated during the intermittent driving and intermittent stopping process, which directly affects the operating environment of the work site.

[0004] In view of the shortcomings of the existing technology, as technical personnel in this industry, how to design a nailing machine head through technical improvements, which can realize the true high-speed operation of the nailing machine and reduce the noise to the lowest level during operation is a technical problem that needs to be solved urgently by existing technical personnel in this industry. Summary of the invention

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a nailing machine head, which is improved on the technical basis of the ordinary nailing machine head to make its structure more reasonable and compact, and adopts a new structural form to make its running inertia smaller, and can realize uninterrupted wire feeding and nailing box action cycle during operation, and can achieve a higher speed.

[0006] The head of a nailing machine as described above comprises a driving part, on which a driving wheel is arranged, and the driving wheel drives an eccentric wheel to drive the internal cutter head of the nailing cutter module to move up and down in a circular manner to realize nail pressing action; a wire introduction frame is arranged on the side of the driving part, on which a wire guide seat and a driving wheel group at the bottom are arranged, and a wire feeding driven gear is arranged on the driving wheel group to mesh with the driving wheel on the driving part to realize wire feeding drive of the entire driving wheel group;

[0007] The nail box knife group module includes a vertically arranged knife group fixing frame, a wire introduction block is arranged on the periphery of the knife group fixing frame, and a hole is arranged on the wire introduction block to realize the introduction of the wire, a vertical shearing knife is arranged in the middle of the knife group fixing frame, a U-shaped groove is arranged on the side of the vertical shearing knife, and a stamping knife is arranged in the U-shaped groove, and the stamping knife realizes vertical cyclic stamping in the U-shaped groove; the vertical shearing knife is provided with a guide inclined groove on the side facing the entrance, and when the vertical shearing knife continues to descend after shearing the wire, the wire feeding action continues and moves the wire forward along the guide inclined groove, and an elastic pressure block is arranged on the side of the stamping knife, and the steel wire entering the side of the stamping knife is squeezed by the elastic pressure block, and when the stamping knife and the vertical shearing knife are lifted and withdrawn, the steel wire returns to the lower part of the vertical shearing knife under the squeezing of the elastic pressure block.

[0008] The front and rear sides of the vertical shearing knife are both provided with U-shaped grooves, a punching knife is vertically arranged in each U-shaped groove, a vertical avoidance groove is arranged on the vertical shearing knife, and the two shearing knives arranged in the front and rear are fixed to one body through a connecting part, and the two punching knives are pressed down at the same time under the drive of the driving device; the connecting part moves vertically in the vertical avoidance groove to realize operation avoidance.

[0009] The elastic pressing block is fixed on the knife set fixing frame through the fixing pin at the top. The knife set fixing frame is provided with an outer fixing cylinder facing each fixing pin. Each outer fixing cylinder is provided with an extrusion spring to realize the extrusion of the elastic pressing block toward the stamping knife.

[0010] The driving wheel on the driving part drives the first driven wheel to rotate, and an eccentric wheel is arranged on the front side of the first driven wheel, and the driving of two swing rods is realized by the eccentric wheel. The two swing rods are arranged alternately, and the end of one swing rod is connected to the vertical shearing knife, and the end of the other swing rod is connected to the punching knife, and the other ends of the two swing rods are hinged and fixed at the same time; a second driven wheel is arranged on the rear side of the first driven wheel, and the second driven wheel is connected to the third driven wheel to realize driving, and a fourth driven wheel is arranged on the rear side of the third driven wheel to realize driving of the wire feeding driven gear.

[0011] The swing rod connecting the vertical shearing knife is designed to be lower than the swing rod connecting the punching knife. When the eccentric wheel is driven, it first drives the vertical shearing knife to press down to cut the steel wire, and then drives the punching knife to press down to punch the U-shaped bent steel wire into the cardboard. After the steel wire is punched, the punching knife and the bottom mold are squeezed together to form the box nails.

[0012] The present invention has the following beneficial effects: through the above structural arrangement, the present invention realizes wire feeding and stamping drive through a driving device, a wire introduction block is arranged on the periphery of the knife group fixing frame to realize wire introduction, a vertical shearing knife is arranged in the middle of the knife group fixing frame, a U-shaped groove is arranged on the side of the vertical shearing knife, a stamping knife is arranged in the U-shaped groove, and the stamping knife realizes vertical circulation stamping in the U-shaped groove; a guide inclined groove is arranged on the side of the vertical shearing knife toward the entrance, when the vertical shearing knife continues to descend after shearing the steel wire, the wire feeding action continues and the steel wire is moved forward along the guide inclined groove, an elastic pressure block is arranged on the side of the stamping knife, and the steel wire entering the side of the stamping knife is squeezed in real time by the elastic pressure block, and when the stamping knife and the vertical shearing knife are lifted and withdrawn, the steel wire returns to the lower part of the vertical shearing knife under the squeezing of the elastic pressure block to realize another shearing and stamping action.

[0013] The invention has an ingenious conception and can realize uninterrupted continuous stamping. Its overall structure is more reasonable and compact. The inertia driven by the eccentric wheel is smaller, so a higher speed can be obtained, the speed can reach 1000 nails / minute, and the noise is small. It is an ideal vertically arranged knife group fixing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0017] Figure 3 for Figure 2 Schematic diagram of the AA-direction cross-section structure;

[0018] Figure 4 1. It is a schematic diagram of the front structure of the nail box knife group module;

[0019] Figure 5 This is a schematic diagram of the rear structure of the nail box knife module;

[0020] Figure 6 1. is a schematic diagram of the structure of the box nailing knife group module when viewed from above;

[0021] Figure 7 for Figure 6 Schematic diagram of the cross-section structure in the middle BB direction;

[0022] Figure 8 for Figure 6 Schematic diagram of the CC section structure;

[0023] Fig. 9 It is a schematic diagram of the internal structure of the box nailing knife group module;

[0024] In the figure, 1. driving part, 11. driving wheel, 12. first driven wheel, 13. eccentric wheel, 14. crank, 15. hinge point, 16. swing rod, 17. connecting rod, 18. third driven wheel, 19. second driven wheel, 20. fourth driven wheel, 2. nail box knife group module, 21. wire guide block, 22. knife group fixing frame, 23. connecting plate, 24. outer fixed cylinder, 25. vertical shear knife, 251. Guide bevel groove, 252, U-shaped groove, 26, punching knife, 261, connecting part, 262, punching knife connecting rod, 27, elastic pressure block, 271, wire guide groove, 272, fixing pin, 28, extrusion spring, 29, vertical shear knife connecting rod, 291, vertical avoidance groove, 3, wire guide seat, 4, wire introduction frame, 41, driving wheel group, 42, wire feeding driven gear, 5, forming bottom mold, 6, cardboard guide block. DETAILED DESCRIPTION

[0025] The present invention is described in detail below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0026] As shown in the accompanying drawings, a nailing machine head includes a driving part 1, on which a driving wheel 11 is provided, and the driving wheel 11 drives an eccentric wheel 13 to drive the internal cutter head of the nailing knife group module 2 to move up and down in a circular motion to realize the nail pressing action; a wire introduction frame 4 is provided on the side of the driving part 1, and a wire guide seat 3 and a driving wheel group 41 at the bottom are provided on the wire introduction frame 4. The specific driving structure of the above components is as follows: the driving wheel 11 on the driving part 1 drives the first driven wheel 12 to rotate, and the front side of the first driven wheel 12 is provided with an eccentric wheel 13, and the eccentric wheel 13 realizes two swings through a crank 14 The synchronous drive of the rod 16, the two swing rods 16 are staggered, the end of one swing rod 16 is connected to the vertical shearing knife 25 through the vertical shearing knife connecting rod 29, and the end of the other swing rod 16 is connected to the stamping knife 26 through the stamping knife connecting rod 262, and the other ends of the two swing rods 16 are hinged and fixed by the hinge point 15 at the same time; the rear side of the first driven wheel 12 is provided with a second driven wheel 19, and the second driven wheel 19 is connected to the third driven wheel 18 to realize the drive, and the rear side of the third driven wheel 18 is provided with a fourth driven wheel 20 to realize the drive of the wire feeding driven gear 42, thereby realizing the wire feeding drive of the entire driving wheel group.

[0027] like Figure 4-9As shown, the nail box knife group module 2 includes a vertically arranged knife group fixing frame 22, and a wire introduction block 21 is arranged on the periphery of the knife group fixing frame 22. The wire introduction block 21 is provided with a hole to realize the introduction of the wire. A vertical shearing knife 25 is arranged in the middle of the knife group fixing frame 22, and a U-shaped groove 252 is arranged on the side of the vertical shearing knife 25. A punching knife 26 is arranged in the U-shaped groove 252, and the punching knife 26 realizes vertical cyclic punching in the U-shaped groove 252; the vertical shearing knife 25 is provided with a guide inclined groove 251 on the side facing the entrance. When the device is in operation, when the vertical shearing knife 25 continues to descend after shearing the wire, the wire feeding action continues and the wire is fed to the vertical shearing knife 25. Move forward along the guiding inclined groove 251, the side of the punching knife 26 is provided with an elastic pressure block 27, and the steel wire entering the side of the punching knife 26 is squeezed by the elastic pressure block 27. The top of the elastic pressure block 27 is hinged on the knife group fixing frame 22, and the bottom thereof is provided with a steel wire guide groove 271 facing the punching knife 26. When the steel wire runs, the vertical shearing knife 25 and the punching knife 26 run downward synchronously, and the steel wire directly falls into the steel wire guide groove 271 for short-term storage, and a binding action is completed. When the punching knife 26 and the vertical shearing knife 25 are lifted and withdrawn, the steel wire is squeezed by the elastic pressure block 27 to break away from the steel wire guide groove 271 and return to the lower part of the vertical shearing knife 25.

[0028] The elastic pressure block 27 mentioned above must have extrusion elasticity, and its purpose is to ensure that the steel wire is always squeezed onto the punching knife 26. The structure disclosed in the present technical solution to achieve the above function is as follows: the elastic pressure block 27 is fixed to the knife group fixing frame 22 through the top fixing pin 272, and the knife group fixing frame 22 is provided with an outer fixing cylinder 24 through a connecting plate 23 toward each fixing pin 272, and each outer fixing cylinder 24 is respectively provided with an extrusion spring 28 to realize the extrusion of the elastic pressure block 27 toward the punching knife 26.

[0029] The technical solution can be used to realize the operation of double-nail synchronous binding, which is achieved by arranging U-shaped grooves 252 on both the front and rear sides of the vertical shearing knife 25, vertically arranging a punching knife 26 in each U-shaped groove, and arranging a vertical avoidance groove 291 on the vertical shearing knife connecting rod 29 on the upper part of the vertical shearing knife 25. The two vertical shearing knives 25 arranged in the front and rear are fixed to one body through a connecting part 261, and the two punching knives 26 are pressed down at the same time under the drive of the driving device; the connecting part 261 moves vertically in the vertical avoidance groove 291 to realize operation avoidance.

[0030] When designing this device, it should be noted that the swing rod 16 connected to the vertical shearing knife 25 is designed to be lower than the swing rod 16 connected to the punching knife. When the eccentric wheel 13 is driven, it first drives the vertical shearing knife 25 to press down to achieve wire cutting, and then drives the punching knife 26 to press down to achieve the U-shaped bent steel wire to punch into the cardboard. After the steel wire is punched, it is squeezed and matched with the punching knife and the forming bottom mold 5 to achieve the binding of the cardboard transported in the direction of the cardboard guide block 6.

[0031] The present invention is configured with the above structure, and the technical solution of the present invention is summarized as follows: the wire feeding and stamping drive are realized by a driving device, a wire introduction block 21 is arranged on the periphery of the knife group fixing frame 22 to realize the wire introduction, a vertical shearing knife 25 is arranged in the middle of the knife group fixing frame 22, a U-shaped groove 252 is arranged on the side of the vertical shearing knife 25, a stamping knife 26 is arranged in the U-shaped groove 252, and the stamping knife 26 realizes vertical cyclic stamping in the U-shaped groove 252; the vertical shearing knife 25 is directed toward the inlet A guide bevel 251 is set on one side. When the vertical shearing knife 25 continues to descend after shearing the steel wire, the wire feeding action continues and the steel wire is moved forward along the guide bevel 251. An elastic pressure block 27 is set on the side of the punching knife 26. The elastic pressure block 27 is used to squeeze the steel wire entering the side of the punching knife 26 in real time. When the punching knife 26 and the vertical shearing knife 25 are lifted and withdrawn, the steel wire returns to the lower part of the vertical shearing knife under the squeezing of the elastic pressure block 27 to realize another shearing and punching action.

[0032] The invention has an ingenious conception and can realize uninterrupted continuous stamping. Its overall structure is more reasonable and compact. The inertia driven by the eccentric wheel is smaller, so a higher speed can be obtained, the speed can reach 1000 nails / minute, and the noise is small. It is an ideal vertically arranged knife group fixing frame.

Claims

1. A nailing machine head, comprising a driving part, wherein the driving part is provided with a driving wheel, characterized in that: The driving wheel drives the eccentric wheel to drive the internal cutter head of the nail box cutter module to move up and down in a circular motion to realize the nail pressing action; a wire introduction frame is arranged on the side of the driving part, and a wire guide seat and a driving wheel group at the bottom are arranged on the wire introduction frame, and a wire feeding driven gear is arranged on the driving wheel group to mesh with the driving wheel on the driving part to realize the wire feeding drive of the entire driving wheel group; The nail box knife group module includes a vertically arranged knife group fixing frame, a wire introduction block is arranged on the periphery of the knife group fixing frame, and a hole is arranged on the wire introduction block to realize the introduction of the wire, a vertical shearing knife is arranged in the middle of the knife group fixing frame, a U-shaped groove is arranged on the side of the vertical shearing knife, and a stamping knife is arranged in the U-shaped groove, and the stamping knife realizes vertical cyclic stamping in the U-shaped groove; the vertical shearing knife is provided with a guide inclined groove on the side facing the entrance, and when the vertical shearing knife continues to descend after shearing the wire, the wire feeding action continues and moves the wire forward along the guide inclined groove, and an elastic pressure block is arranged on the side of the stamping knife, and the steel wire entering the side of the stamping knife is squeezed by the elastic pressure block, and when the stamping knife and the vertical shearing knife are lifted and withdrawn, the steel wire returns to the lower part of the vertical shearing knife under the squeezing of the elastic pressure block.

2. A box stitching machine head as claimed in claim 1, characterized in that: The front and rear sides of the vertical shearing knife are both provided with U-shaped grooves, a punching knife is vertically arranged in each U-shaped groove, a vertical avoidance groove is arranged on the vertical shearing knife, and the two shearing knives arranged in the front and rear are fixed to one body through a connecting part, and the two punching knives are pressed down at the same time under the drive of the driving device; the connecting part moves vertically in the vertical avoidance groove to realize operation avoidance.

3. A box stitching machine head as claimed in claim 1, characterized in that: The elastic pressing block is fixed on the knife set fixing frame through the fixing pin at the top. The knife set fixing frame is provided with an outer fixing cylinder facing each fixing pin. Each outer fixing cylinder is provided with an extrusion spring to realize the extrusion of the elastic pressing block toward the stamping knife.

4. A box stitching machine head according to any one of claims 1 to 3, characterized in that: The driving wheel on the driving part drives the first driven wheel to rotate, and an eccentric wheel is arranged on the front side of the first driven wheel, and the driving of two swing rods is realized by the eccentric wheel. The two swing rods are arranged alternately, and the end of one swing rod is connected to the vertical shearing knife, and the end of the other swing rod is connected to the punching knife, and the other ends of the two swing rods are hinged and fixed at the same time; a second driven wheel is arranged on the rear side of the first driven wheel, and the second driven wheel is connected to the third driven wheel to realize driving, and a fourth driven wheel is arranged on the rear side of the third driven wheel to realize driving of the wire feeding driven gear.

5. A box stitching machine head as claimed in claim 4, characterized in that: The swing rod connecting the vertical shearing knife is designed to be lower than the swing rod connecting the punching knife. When the eccentric wheel is driven, it first drives the vertical shearing knife to press down to cut the steel wire, and then drives the punching knife to press down to punch the U-shaped bent steel wire into the cardboard. After the steel wire is punched, the punching knife and the bottom mold are squeezed together to form the box nails.

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