Horse stitching binding machine

Abstract

The utility model provides a staple binding machine, and belongs to the technical field of printing machinery. And due to the influence of inertia after the metal wire coil rotates, the metal wire coil can continuously rotate, so that the stapled staples are inconsistent in length. The machine comprises a machine frame, a winding mechanism and a nailing mechanism, the winding mechanism and the nailing mechanism are arranged on the machine frame, the winding mechanism comprises a plurality of metal wire coils rotationally arranged on the machine frame, and the nailing mechanism pulls metal wires wound on the metal wire coils and cuts off a section of metal wire to nail the metal wires into a thin book; the machine frame is further provided with a pre-stretching mechanism, the metal wire is supplied to the nailing mechanism after passing through the pre-stretching mechanism, the pre-stretching mechanism pulls a section of prepared metal wire from the metal wire coil in advance and prestores the prepared metal wire between the pre-stretching mechanism and the nailing mechanism, and therefore the nailing mechanism can accurately pull the prepared metal wire for binding. The pre-tensioning mechanism has the advantages that the pre-tensioning mechanism is additionally arranged, the inertial rotation of the upper metal wire coil cannot influence the rotary wire tensioning of the lower wire feeding wheel set, and the accuracy of the length of the pulled metal wire is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing machinery and relates to a saddle stitch binding machine. Background Art

[0002] Saddle stitching is a method of binding thin books. Saddle stitching usually refers to "wire flat staples", and it does not use pre-made staples. During the production process, the machine cuts a section of the rolled metal wire, staples it into the paper, and bends the wire on the other side of the paper to fix it.

[0003] When binding, the existing binding machine pulls the metal wire downward through the nail head mechanism to drive the metal wire roll to rotate. However, due to the inertia of the metal wire roll after rotation, the metal wire roll will continue to rotate, so that the actual length of the pulled metal wire is longer than the theoretical value, and finally the length of the staples is inconsistent. Utility Model Content

[0004] The utility model aims to solve the above problems existing in the existing saddle stitch binding process and proposes a binding machine which can accurately pull the length of the metal wire.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A saddle stitch binding machine comprises a frame and a winding mechanism and a nail head mechanism arranged on the frame, wherein the winding mechanism comprises a plurality of metal wire rolls rotatably arranged on the frame, and the nail head mechanism is used to pull the metal wire wound on the metal wire rolls and cut a section of the metal wire to bind it into a thin book; the characteristic is that the frame is also provided with a pre-tensioning mechanism, which is located between the winding mechanism and the nail head mechanism, and the metal wire is supplied to the nail head mechanism after passing through the pre-tensioning mechanism, and the pre-tensioning mechanism pre-pulls a section of prepared metal wire from the metal wire roll and stores it between the pre-tensioning mechanism and the nail head mechanism, so that the nail head mechanism can accurately pull the prepared metal wire for binding.

[0007] In the above-mentioned saddle stitch binding machine, the pre-tensioning mechanism includes a plurality of wire feeding shafts corresponding to each metal wire roll and a driving member for driving each wire feeding shaft to rotate. The metal wire is wound on the wire feeding shaft, and the driving member drives the wire feeding shaft to rotate and drives the metal wire to be pulled downward.

[0008] In the above-mentioned saddle stitch binding machine, the pre-tensioning mechanism includes a plurality of clamping assemblies corresponding to each metal wire roll one by one, and the clamping assembly includes a first clamping member and a second clamping member, the first clamping member and the second clamping member cooperate with each other to form a wire feeding gap, and the above-mentioned metal wire passes through the wire feeding gap, the first clamping member and the second clamping member clamp the metal wire and one or both of the first clamping member and the second clamping member drive the metal wire to be fed by friction under the drive of the driving mechanism.

[0009] In the above-mentioned saddle stitch binding machine, the first clamping member and the second clamping member are both clamping plate structures, or the first clamping member is a clamping plate structure and the second clamping member is a roller structure, or the first clamping member and the second clamping member are both roller structures.

[0010] In the above-mentioned saddle stitch binding machine, the clamping assembly includes two symmetrical wire clamping plates and a driving member 2 for driving the two wire clamping plates to open and close. The driving member 2 drives the two wire clamping plates to clamp the metal wire, and the driving mechanism drives the clamping plate assembly to descend to feed the wire.

[0011] In the above-mentioned saddle stitch binding machine, the clamping assembly includes a backing plate and a roller, the roller presses the metal wire against the backing plate, and the driving mechanism drives the roller to rotate to feed the wire.

[0012] In the above-mentioned saddle stitch binding machine, the clamping assembly includes two mutually engaged wire feeding wheels, the two wire feeding wheels clamp the metal wire, and the driving mechanism drives the two wire feeding wheels to rotate in opposite directions to feed the wire.

[0013] In the above-mentioned saddle stitch binding machine, the two wire feeding wheels of the clamping assembly are divided into an active wire feeding wheel and a passive wire feeding wheel. The active wire feeding wheel of each clamping assembly is fixedly mounted on a driving shaft, and the passive wire feeding wheel of each clamping assembly is mounted on a transmission shaft. The active shaft and the transmission shaft are respectively rotatably arranged on the frame, and the above-mentioned driving mechanism drives the active shaft and the transmission shaft to rotate in opposite directions respectively.

[0014] In the above-mentioned saddle stitch binding machine, the driving mechanism includes a driving motor, a driving gear fixedly connected to the driving shaft, and a passive gear fixedly connected to the transmission shaft, the driving gear and the passive gear are meshed with each other, the driving motor is fixed on the frame, and the output shaft of the driving motor is connected to the driving gear through a transmission assembly.

[0015] In the above-mentioned saddle stitch binding machine, the transmission assembly includes a driving pulley fixedly connected to the output shaft of the driving motor, a passive pulley fixedly connected to the driving shaft, and a conveyor belt is closed and wound around the driving pulley and the passive pulley.

[0016] In the above-mentioned saddle stitch binding machine, an adjustment mechanism is further provided on the frame, and the adjustment mechanism is used to adjust the distance between the two wire feeding wheels, thereby correspondingly adjusting the width of the wire feeding gap to adapt to metal wires of different thicknesses.

[0017] In the above-mentioned saddle stitch binding machine, the adjustment mechanism includes an eccentric sleeve, which is rotatably arranged on the frame. An eccentric shaft hole is provided on the eccentric sleeve, and the axis of the eccentric shaft hole deviates from the axis of the eccentric sleeve. Two eccentric sleeves are arranged on both sides of the frame, and the two ends of the transmission shaft are rotatably arranged in the two eccentric sleeves.

[0018] In the above-mentioned saddle stitch binding machine, a positioning mechanism is further provided on the frame, and the positioning mechanism is used to record the rotation position of the eccentric sleeve after adjustment, thereby recording the width of the corresponding wire feeding gap.

[0019] In the above-mentioned saddle stitch binding machine, the positioning mechanism includes an adjusting plate and a positioning pin. The adjusting plate is mounted on the eccentric sleeve and is locked or separated from the eccentric sleeve by a locking member. The positioning pin is movably arranged on the frame along its axial direction. After the positioning pin is extended outward, the adjusting plate can be rotated until it is blocked by the extended positioning pin.

[0020] In the above-mentioned saddle stitch binding machine, a circle of grooves running through the circumference of the active wire feeding wheel is formed on the outer wheel surface of the active wire feeding wheel, and the passive wire feeding wheel is embedded in the groove. The inner wall of the groove and the outer wall of the passive wire feeding wheel form the above-mentioned wire feeding gap.

[0021] In the above-mentioned saddle stitch binding machine, the frame is fixedly provided with a plurality of mounting brackets for mounting metal wire coils, and the mounting bracket is also provided with a mounting angle piece, on which a friction plate is fixedly provided, and the bottom of the metal wire coil rotates and rests against the friction plate; the mounting angle piece can be vertically raised and lowered relative to the mounting bracket to adjust the distance between the friction plate and the metal wire coil.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The utility model adds a pre-tensioning mechanism on the basis of the original nail head mechanism. The stable tensioning force of the pre-tensioning mechanism pre-pulls out an accurate section of prepared metal wire, and the nail head mechanism can directly pull the prepared metal wire for binding, so that the inertial rotation of the upper metal wire coil cannot affect the wire pulling of the lower nail head mechanism, thereby ensuring the accuracy of the length of the binding metal wire;

[0024] 2. When the adjusting plate and the eccentric sleeve are locked, they rotate synchronously, the positioning pin is pressed inward and retracted, and the eccentric sleeve is driven to rotate by toggling the adjusting plate, so as to adjust the width of the wire feeding gap; after the width adjustment of the wire feeding gap is completed, the positioning pin is pushed to extend outward, and the locking piece is loosened to separate the adjusting plate from the eccentric sleeve, and the position of the eccentric sleeve remains unchanged. The adjusting plate is rotated to be blocked by the extended positioning pin, and the position of the adjusting plate and the eccentric sleeve is locked again. At this time, the position of the adjusting plate can be recorded as the position after the wire feeding gap width is adjusted. When you want to continue production with the wire feeding gap width in the future, you can rotate the adjusting plate to the position against the positioning pin without secondary adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is an enlarged schematic diagram of the clamping assembly of the utility model;

[0027] Figure 3 It is an enlarged schematic diagram of the positioning mechanism of the utility model;

[0028] Figure 4 It is an enlarged schematic diagram of the metal wire coil of the utility model.

[0029] In the figure, 1. frame; 2. metal wire coil; 3. active wire feeding wheel; 4. passive wire feeding wheel; 5. active shaft; 6. transmission shaft; 7. driving motor; 8. active gear; 9. passive gear; 10. active pulley; 11. passive pulley; 12. conveyor belt; 13. eccentric sleeve; 14. eccentric shaft hole; 15. adjustment plate; 16. positioning pin; 17. groove; 18. mounting frame; 19. mounting angle piece. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0031] Example 1

[0032] like Figure 1 As shown, the utility model described in the saddle stitch binding machine includes a frame 1 and a winding mechanism and a nail head mechanism arranged on the frame 1, the winding mechanism includes a plurality of metal wire reels 2 rotatably arranged on the frame 1, and the nail head mechanism is used to pull the metal wire wound on the metal wire reel 2 and cut a section of the metal wire to bind it into a thin book; it is characterized in that the frame 1 is also provided with a pre-tensioning mechanism, the pre-tensioning mechanism is located between the winding mechanism and the nail head mechanism, the metal wire is supplied to the nail head mechanism after passing through the pre-tensioning mechanism, the pre-tensioning mechanism pre-pulls a section of prepared metal wire from the metal wire reel 2 and pre-stores it between the pre-tensioning mechanism and the nail head mechanism, so that the nail head mechanism can accurately pull the prepared metal wire for binding.

[0033] The nail head mechanism described in the present invention is the prior art in the art, and therefore is not described in detail in the specification and the drawings of the specification.

[0034] The pre-tensioning mechanism includes a first clamping member and a second clamping member, the first clamping member and the second clamping member cooperate with each other to form a wire feeding gap, the metal wire passes through the wire feeding gap, the first clamping member and the second clamping member clamp the metal wire, and one or both of the first clamping member and the second clamping member drive the metal wire to feed the wire by friction under the drive of the driving mechanism. The first clamping member and the second clamping member are both clamping plate structures, or the first clamping member is a clamping plate structure and the second clamping member is a roller structure, or the first clamping member and the second clamping member are both roller structures.

[0035] like Figure 2 As shown, the clamping assembly includes two mutually interlocking wire feeding wheels, the two wire feeding wheels clamp the metal wire, and the driving mechanism drives the two wire feeding wheels to rotate in opposite directions to feed the wire. The two wire feeding wheels of the clamping assembly are divided into an active wire feeding wheel 3 and a passive wire feeding wheel 4. The active wire feeding wheel 3 of each clamping assembly is fixedly sleeved on a driving shaft 5, and the passive wire feeding wheel 4 of each clamping assembly is sleeved on a transmission shaft 6. The active shaft 5 and the transmission shaft 6 are respectively rotatably arranged on the frame 1, and the above-mentioned driving mechanism drives the active shaft 5 and the transmission shaft 6 to rotate in opposite directions respectively. A circle of grooves 17 that penetrate along the circumference of the active wire feeding wheel 3 is provided on the outer wheel surface, and the passive wire feeding wheel 4 is embedded in the groove 17. The inner wall of the groove 17 and the outer wall of the passive wire feeding wheel 4 enclose the above-mentioned wire feeding gap.

[0036] like Figure 3 As shown, the driving mechanism includes a driving motor 7, a driving gear 8 fixedly connected to the driving shaft 5, and a passive gear 9 fixedly connected to the transmission shaft 6, the driving gear 8 and the passive gear 9 are meshed with each other, the driving motor 7 is fixedly mounted on the frame 1, and the output shaft of the driving motor 7 is connected to the driving gear 8 through a transmission assembly. The transmission assembly includes a driving pulley 10 fixedly connected to the output shaft of the driving motor 7, a passive pulley 11 fixedly connected to the driving shaft 5, and a conveyor belt 12 is closed and arranged on the driving pulley 10 and the passive pulley 11.

[0037] like Figure 3 As shown, the frame 1 is also provided with an adjustment mechanism, which is used to adjust the distance between the two wire feeding wheels, thereby correspondingly adjusting the width of the wire feeding gap to adapt to metal wires of different thicknesses. The adjustment mechanism includes an eccentric sleeve 13, which is rotatably arranged on the frame 1, and an eccentric shaft hole 14 is provided on the eccentric sleeve 13, and the axis of the eccentric shaft hole 14 deviates from the axis of the eccentric sleeve 13. Two eccentric sleeves 13 are arranged on both sides of the frame 1, and the two ends of the transmission shaft 6 are rotatably arranged in the two eccentric sleeves 13.

[0038] The frame 1 is also provided with a positioning mechanism, which is used to record the rotation position of the adjusted eccentric sleeve 13, thereby recording the width of the corresponding wire feeding gap. The positioning mechanism includes an adjustment plate 15 and a positioning pin 16. The adjustment plate 15 is sleeved on the eccentric sleeve 13 and is locked or separated from the eccentric sleeve 13 through a locking member. The positioning pin 16 is movably arranged on the frame 1 along its axial direction. After the positioning pin 16 is extended outward, the adjustment plate 15 can be rotated to be blocked by the extended positioning pin 16.

[0039] like Figure 4As shown, the frame 1 is fixed with a plurality of mounting brackets 18 for mounting the metal wire coil 2, and the mounting bracket 18 is also provided with a mounting angle piece 19, and a friction plate is fixed on the mounting angle piece 19, and the bottom of the metal wire coil 2 rotates against the friction plate; the mounting angle piece 19 can be vertically raised and lowered relative to the mounting bracket 18 to adjust the distance between the friction plate and the metal wire coil. The friction plate plays a damping role, which can prevent the metal wire coil from rotating due to inertia, causing the metal wire to be entangled after being loosened, and ensures that sufficient damping is provided to prevent the metal wire coil from rotating.

[0040] After starting up the machine, the nail head mechanism is first used for trial binding until the nail head mechanism is adjusted to the appropriate metal wire length L. After normal operation, the pre-tensioning mechanism pulls the metal wire to a length of L+1mm, that is, the length of the prepared metal wire is L+1mm, and the actual length of the metal wire pulled by the nail head mechanism is L. Each subsequent time the pre-tensioning mechanism pulls the metal wire to a length of L, so that the prepared metal wire always has a margin of 1mm.

[0041] Example 2

[0042] Different from Example 1, the pre-tensioning mechanism described in this embodiment includes a plurality of wire feeding shafts corresponding to each metal wire reel and a driving member 1 for driving each wire feeding shaft to rotate. The metal wire is wound around the wire feeding shaft, and the driving member 1 drives the wire feeding shaft to rotate and drives the metal wire to be pulled downward.

[0043] Example 3

[0044] Different from Example 1, the clamping assembly described in this embodiment includes two symmetrical wire clamping plates and a driving member 2 for driving the two wire clamping plates to open and close. The driving member 2 drives the two wire clamping plates to clamp the metal wire together, and the driving mechanism drives the clamping plate assembly to descend to feed the wire.

[0045] Example 4

[0046] Different from the first embodiment, the clamping assembly described in this embodiment includes a backing plate and a roller. The roller presses the metal wire against the backing plate, and the driving mechanism drives the roller to rotate to feed the wire.

[0047] It should be understood that in the claims and description of the utility model, all "including..." should be understood as an open-ended meaning, that is, its meaning is equivalent to "at least contains...", and should not be understood as a closed meaning, that is, its meaning should not be understood as "only includes...".

[0048] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A saddle stitch binding machine, comprising a frame (1) and a winding mechanism and a nail head mechanism arranged on the frame (1), wherein the winding mechanism comprises a plurality of metal wire rolls (2) rotatably arranged on the frame (1), and the nail head mechanism is used to pull the metal wire wound on the metal wire rolls (2) and cut a section of the metal wire to bind it into a thin book; characterized in that: The frame (1) is also provided with a pre-tensioning mechanism, which is located between the winding mechanism and the nail head mechanism. The metal wire passes through the pre-tensioning mechanism and is supplied to the nail head mechanism. The pre-tensioning mechanism pre-pulls a section of prepared metal wire from the metal wire roll (2) and stores it between the pre-tensioning mechanism and the nail head mechanism, so that the nail head mechanism can accurately pull the prepared metal wire for binding.

2. The saddle stitch binding machine according to claim 1, characterized in that: The pre-tensioning mechanism comprises a plurality of wire feeding shafts corresponding one to each metal wire reel (2) and a driving member 1 for driving each wire feeding shaft to rotate. The metal wire is wound around the wire feeding shaft. The driving member 1 drives the wire feeding shaft to rotate and drives the metal wire to be pulled downward.

3. The saddle stitch binding machine according to claim 1, characterized in that: The pre-tensioning mechanism includes a plurality of clamping assemblies corresponding to each metal wire roll one by one, and the clamping assemblies include a first clamping member and a second clamping member, the first clamping member and the second clamping member cooperate with each other to form a wire feeding gap, and the above-mentioned metal wire passes through the wire feeding gap, the first clamping member and the second clamping member clamp the metal wire, and one or both of the first clamping member and the second clamping member drive the metal wire to be fed by friction under the drive of the driving mechanism.

4. The saddle stitch binding machine according to claim 3, characterized in that: The first clamping member and the second clamping member are both clamping plate structures, or the first clamping member is a clamping plate structure and the second clamping member is a roller structure, or the first clamping member and the second clamping member are both roller structures.

5. The saddle stitch binding machine according to claim 4, characterized in that: The clamping assembly comprises two mutually meshing wire feeding wheels, the two wire feeding wheels clamp the metal wire, and the driving mechanism drives the two wire feeding wheels to rotate in opposite directions to feed the wire.

6. The saddle stitch binding machine according to claim 5, characterized in that: The two wire feeding wheels of the clamping assembly are divided into an active wire feeding wheel (3) and a passive wire feeding wheel (4); the active wire feeding wheel (3) of each clamping assembly is fixedly sleeved on a driving shaft (5); the passive wire feeding wheel (4) of each clamping assembly is sleeved on a transmission shaft (6); the driving shaft (5) and the transmission shaft (6) are rotatably arranged on the frame (1), and the driving mechanism drives the driving shaft (5) and the transmission shaft (6) to rotate in opposite directions.

7. The saddle stitch binding machine according to claim 6, characterized in that: The frame (1) is also provided with an adjustment mechanism, which is used to adjust the distance between the two wire feeding wheels, thereby correspondingly adjusting the width of the wire feeding gap to adapt to metal wires of different thicknesses; the adjustment mechanism comprises an eccentric sleeve (13), the eccentric sleeve (13) is rotatably arranged on the frame (1), an eccentric shaft hole (14) is provided on the eccentric sleeve (13), the axis of the eccentric shaft hole (14) deviates from the axis of the eccentric sleeve (13), the two eccentric sleeves (13) are arranged on both sides of the frame (1), and the two ends of the transmission shaft (6) are rotatably arranged in the two eccentric sleeves (13).

8. The saddle stitch binding machine according to claim 7, characterized in that: The frame (1) is also provided with a positioning mechanism, which is used to record the rotational position of the eccentric sleeve (13) after adjustment, thereby recording the width of the corresponding wire feeding gap; the positioning mechanism comprises an adjustment plate (15) and a positioning pin (16); the adjustment plate (15) is sleeved on the eccentric sleeve (13) and is locked or separated from the eccentric sleeve (13) by a locking member; the positioning pin (16) is movably arranged on the frame (1) along its axial direction; after the positioning pin (16) is extended outward, the adjustment plate (15) can be rotated until it is blocked by the extended positioning pin (16).

9. The saddle stitch binding machine according to claim 6, characterized in that: The outer wheel surface of the active wire feeding wheel (3) is provided with a circle of grooves (17) extending through the circumference thereof, and the passive wire feeding wheel (4) is embedded in the groove (17), and the inner wall of the groove (17) and the outer wall of the passive wire feeding wheel (4) enclose the wire feeding gap.

10. The saddle stitch binding machine according to claim 1, characterized in that: The frame (1) is fixedly provided with a plurality of mounting frames (18) for mounting the metal wire coil (2); the mounting frame (18) is also provided with a mounting angle piece (19); a friction plate is fixedly provided on the mounting angle piece (19); the bottom of the metal wire coil (2) rotates against the friction plate; the mounting angle piece (19) can be vertically raised and lowered relative to the mounting frame (18) to adjust the distance between the friction plate and the metal wire coil (2).

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