CN211280325U - Thread-bound type automatic file binding machine with improved thread feeding needle structure - Google Patents

Abstract

The utility model discloses an improve automatic book-binding machine of line dress formula archives that send line needle structure, which comprises a frame, the file binds the platform, drilling equipment and send the line device, the file is bound the platform and is installed at the middle part of frame, drilling equipment installs the top or the below at the file and binds the platform, send the line device to install the top or the below at the file and bind the platform, send the line device to include threading elevating system and an at least line needle that send, send the first end installation of line needle in threading elevating system, send the second end of line needle to have seted up a fork line groove, the outside of fork line groove opens and forms a income line mouth, the relative both sides in fork line groove have a fork line cell wall respectively. The utility model discloses improve and send the line needle, simplify threading mechanism simultaneously, reduce the subassembly quantity that sends the line needle, simple structure reduces product cost, and the action is reliable and stable.

Description

Thread-bound type automatic file binding machine with improved thread feeding needle structure

Technical Field

The utility model belongs to the technical field of archives book-binding machine technique and specifically relates to an improve automatic book-binding machine of line dress formula archives that send line needle structure.

Background

A thread-bound automatic file binding machine for binding documents, which comprises a document binding platform, a drilling device arranged above the document binding platform, and a threading mechanism arranged below the document binding platform, wherein a thread slot arranged on the document binding platform is used for placing binding thread, the drilling device is used for drilling binding round holes on the documents, the threading mechanism is used for drawing the binding thread to pass through the binding round holes, however, the existing threading mechanism is relatively complex, the top of a thread feeding needle is arranged below the thread slot in an initial state, the top of the thread feeding needle is arranged below the binding thread to be drawn, and the thread feeding needle hooks the binding thread through a hook body arranged on the side surface of the thread feeding needle, therefore, the binding thread in the thread slot is required to be pushed to the thread feeding needle along the longitudinal direction in the early stage of starting the thread feeding needle to move upwards and thread in the threading process, the binding thread can be abutted against the thread feeding needle at a proper time, so that the thread pushing mechanism arranged below the file binding platform is required to assist in longitudinally pushing the binding thread at a proper time, the binding thread can be abutted against a needle machine of the thread feeding needle and smoothly clamped into a hook body on the side face of the thread feeding needle, the number of thread feeding mechanism components is large, the cost is high, the technical scheme has high requirement on the matching precision of the thread feeding needle, and the stability is relatively poor.

In addition, the length of the thread feeding needle is generally 8-12cm, and the thread feeding needle is long, so that the thread feeding needle is easy to swing in the lifting process, and is easy to have a firing pin.

Furthermore, the top of the thread feeding needle is located below the document binding platform in the initial state, and in the early stage of upward movement of the thread feeding needle, the top of the thread feeding needle must be accurately inserted into the corresponding threading through hole on the document binding platform, so that the thread feeding needle can smoothly pass upward through the document binding platform and pull the binding thread upward and pass through the binding round hole of the document, and in both the thread pushing process of the thread pushing mechanism and the process of upward pulling the binding thread by the thread feeding needle, the thread feeding needle can swing, the needle is easy to hit, and the thread feeding needle is often damaged, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improve automatic book-binding machine of line dress formula archives that send line needle structure, simplify threading mechanism, the subassembly is small in quantity, simple structure, reduce cost, the action is reliable and stable.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides an improve automatic book-binding machine of line dress formula archives of sending line needle structure, which comprises a frame, file binding platform, drilling equipment and send the line device, file binding platform installs the middle part in the frame, drilling equipment installs the top or the below at file binding platform, send the line device to install the top or the below at file binding platform, send the line device to include threading elevating system and at least one to send the line needle, send the first tip of line needle to install in threading elevating system, send the second tip of line needle to have seted up a fork line groove, the outside of fork line groove is opened and is formed one and go into the line mouth, the relative both sides of fork line groove have a fork line cell wall respectively.

Furthermore, the upper part of the thread feeding needle is provided with at least one thread avoiding part, the thread avoiding part at least extends downwards to the middle part of the thread feeding needle along the vertical direction, the upper part of the thread avoiding part extends upwards to the thread forking groove, and the width of the upper part of the thread feeding needle along the longitudinal direction is smaller than that of the middle part or the lower part of the thread feeding needle.

Furthermore, the lower part of the thread feeding needle is in a cylindrical shape, and the upper part of the thread feeding needle is in a flat shape; the front side and the rear side of the thread feeding needle are respectively provided with the thread avoiding part, the outer side surface of the thread avoiding part is a plane or an arc surface which is obliquely arranged relative to the vertical direction, and the longitudinal section of the thread forking groove is U-shaped or V-shaped.

Furthermore, the yarn avoiding part comprises an upper yarn avoiding part and a lower yarn avoiding part, the front side and the rear side of the upper part of the yarn feeding needle are respectively provided with an upper yarn avoiding part, and the front side and the rear side of the middle part of the yarn feeding needle are respectively provided with a lower yarn avoiding part; the upper end part of the upper wire avoiding part extends to the upper end part of the fork line groove, the upper end part of the lower wire avoiding part is connected with the lower end part of the upper wire avoiding part on the same side, and the lower end of the lower wire avoiding part extends to the middle part or the lower part of the wire feeding needle; the inclination angle of the upper wire avoiding part relative to the vertical direction is larger than that of the lower wire avoiding part at the same side relative to the vertical direction.

Furthermore, a wire placing groove is formed in the upper portion of the file binding platform and transversely penetrates through the file binding platform; three threading through holes are transversely arranged on the file binding platform at intervals; the thread feeding needle is vertically arranged below the file binding platform; the second end part of each thread feeding needle is movably inserted into the corresponding threading through hole in the initial state, the thread placing groove at least overlaps with the upper part of the thread forking groove in the initial state, two thread forking groove walls on the upper part of each thread feeding needle are respectively positioned at the front side and the rear side of the thread placing groove, and the width of at least the upper part of the thread forking groove is larger than the width of the thread placing groove along the longitudinal direction.

Further, the upper end part of the forked line groove wall is not lower than the groove bottom of the line placing groove in the initial state, and the width of the upper part of the forked line groove is larger than that of the lower part of the forked line groove along the longitudinal direction; the bottom of the fork line groove is not higher than that of the line placing groove.

Furthermore, each threading through hole is respectively overlapped with the wire placing groove, the longitudinal width of the wire placing groove in the longitudinal section is smaller than the longitudinal width or the inner diameter of each threading through hole, and the longitudinal width of the fork wire groove is larger than the longitudinal width of the wire placing groove; the width of the upper part of each cross line groove wall is smaller than that of the lower part of the same cross line groove wall along the transverse direction; the inner sides of the two cross wire groove walls and/or the bottoms of the cross wire grooves are provided with arc-shaped wire guide surfaces.

Furthermore, the upper end part of the thread feeding needle is provided with a conical guide part in a shape of a cone or a table body with a small upper part and a large lower part, the thread forking groove transversely penetrates through the upper part or the middle upper part of the conical guide part only, or the thread forking groove transversely penetrates through the whole conical guide part, and the thread forking groove is parallel to the thread placing groove.

Furthermore, the thread feeding device is arranged below the document binding platform, the threading lifting mechanism comprises a threading lifting motor, a threading lifting transmission mechanism and a threading lifting seat which are respectively arranged below the document binding platform, the threading lifting motor is in transmission connection with the threading lifting transmission mechanism, the threading lifting transmission mechanism is in transmission connection with the threading lifting seat, the threading lifting seat is vertically and slidably mounted on the frame, three thread feeding needles are transversely installed at intervals on the upper portion of the threading lifting seat, the first end portions of the thread feeding needles are respectively fixed on the threading lifting seat, and the second end portions of the thread feeding needles respectively face vertically upwards;

the drilling device is arranged above the file binding platform, the drilling device is provided with a drilling lifting motor, a drilling lifting transmission mechanism, a drilling lifting seat, three drilling motors and three drilling knives, the drilling knives are arranged on the lower wall bodies which are hollow in the middle and are arranged into chip removal through holes, the drilling lifting motors are in transmission connection with the drilling lifting transmission mechanism, the drilling lifting transmission mechanism is in transmission connection with the drilling lifting seat, the drilling lifting seat is mounted on the frame in a vertically sliding mode, the three drilling motors are respectively fixed on the drilling lifting seat at transverse intervals, a drilling transmission shaft is arranged at the lower part of each drilling motor, and the three drilling knives are respectively in transmission connection with or fixedly mounted on corresponding drilling transmission shafts of the three drilling motors;

the upper part of the file binding platform is provided with a wire placing groove, and the file binding platform is transversely provided with three threading through holes at intervals;

the drilling device and the wire feeding device are arranged oppositely up and down, and the three drill cutters are respectively vertically aligned with the three wire feeding needles;

the three drilling knives are respectively and coaxially arranged or concentrically arranged with the three corresponding thread feeding needles, and the three thread feeding needles are respectively and coaxially arranged or concentrically arranged with the three corresponding threading through holes.

Furthermore, the upper portion of threading lift seat is seted up three mounting hole that horizontal interval set up, and the first end of three line needle that send is inserted respectively admittedly in the corresponding three mounting hole of threading lift seat, and each first end of sending the line needle is provided with location orientation installation department respectively, and location orientation installation department includes a directional groove, directional step position or directional boss at least, and the location orientation installation department of each line needle of sending is spacing cooperation with corresponding mounting hole respectively.

Compared with the prior art, the utility model the advantage that has is: the utility model discloses improve the needle of sending a thread, simplify threading mechanism simultaneously, reduce the subassembly quantity of threading mechanism, simple structure further reduces product cost, and the action is reliable and stable.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the thread-bound automatic file binding machine of the present invention.

Fig. 2 is a schematic view of the internal structure of the thread-bound automatic file binding machine of the present invention.

Fig. 3 is a schematic structural view of the wire feeding device of the present invention.

Fig. 4 is a perspective view of the thread feeding needle of the present invention.

Fig. 5 is a front view of the thread feeding needle of fig. 4.

Fig. 6 is a side view of the thread feeding needle of fig. 4.

Fig. 7 is a schematic structural view of the thread feeding needle of the present invention matching with the document binding platform.

Fig. 8 is a partial enlarged view at a in fig. 7.

The labels in the figure are:

1. the file binding machine comprises a rack 11, a file binding platform 12, a wire placing groove 13, a threading through hole 14 and a sliding groove.

2. The drilling device 21, the drilling lifting motor 22, the drilling lifting transmission mechanism 23, the drilling lifting seat 24, the drilling motor 25 and the drill bit.

3. Thread feeding device 31, thread feeding needle 311, thread forking groove 312, thread forking groove wall 313, positioning orientation 314, upper thread avoiding part 315 and lower thread avoiding part.

32. A threading lifting motor 33, a threading lifting transmission mechanism 34 and a threading lifting seat.

41. A rubber pad mounting plate 42 and a conductive rubber pad.

Detailed Description

The following are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby.

A thread-bound type automatic file binding machine with an improved thread feeding needle structure is shown in figures 1 to 8 and comprises a machine frame 1, a file binding platform 11, a drilling device 2 and a thread feeding device 3, wherein the file binding platform 11 is installed in the middle of the machine frame 1, the drilling device 2 is installed above or below the file binding platform 11, the thread feeding device 3 comprises a threading lifting mechanism and at least one thread feeding needle 31, a first end portion of the thread feeding needle 31 is installed on the threading lifting mechanism, a thread forking groove 311 is formed in a second end portion of the thread feeding needle 31, the outer side of the thread forking groove 311 is open and forms a thread inlet, a thread forking groove wall 312 is respectively arranged on two opposite sides of the thread forking groove 311, and the thread placing groove 12 are arranged in parallel. When the thread feeding needle 31 moves upward, the binding thread in the thread placing groove 12 automatically falls into the thread forking groove 311, the thread feeding needle 31 directly lifts the binding thread upward through the upper end part thread forking groove 311, and the binding thread is pulled upward by directly lifting the binding thread upward, so that any auxiliary mechanism such as a thread pushing mechanism, a thread pulling mechanism or a thread clamping mechanism does not need to be additionally designed to enable the thread feeding needle 31 to hook the binding thread.

Setting one side of the thread-bound automatic file binding machine facing a user as a front side, namely setting one side of a file binding platform 11 as the front side, setting one side of the back of the thread-bound automatic file binding machine as the back side, and setting the front and back directions as the longitudinal direction of the utility model; the direction perpendicular to the longitudinal direction in the horizontal plane is set as the transverse direction, which is also a relative term in connection with fig. 1 and 2.

In a specific embodiment, the thread feeding device 3 is disposed below the document binding platform 11, the threading lifting mechanism includes a threading lifting motor 32, a threading lifting transmission mechanism 33 and a threading lifting seat 34 respectively disposed below the document binding platform 11, the threading lifting seat 34 is a plate body, the threading lifting motor 32 is in transmission connection with the threading lifting transmission mechanism 33, the threading lifting transmission mechanism 33 is in transmission connection with the threading lifting seat 34, the threading lifting seat 34 is slidably mounted on the frame 1 up and down, three thread feeding needles 31 are transversely installed on the upper portion of the threading lifting seat 34 at intervals, first end portions of the thread feeding needles 31 are respectively fixed on the threading lifting seat 34, and second end portions of the thread feeding needles 31 respectively face vertically upwards. The three thread feeding needles 31 are driven to synchronously move upwards through the threading lifting mechanism, the upper portions of the thread feeding needles 31 upwards extend to the set position above the file binding platform 11, threading is achieved, threading work of the three binding circular holes is automatically completed in one-time threading, threading efficiency is improved, and the three thread feeding needles 31 are driven to synchronously move downwards through the threading lifting mechanism, so that resetting is achieved.

In a specific embodiment, the drilling device 2 is arranged above the document binding platform 11, the drilling device 2 and the wire feeding device 3 are arranged up and down oppositely, the drilling device 2 is provided with a drilling lifting motor 21, a drilling lifting transmission mechanism 22, a drilling lifting seat 23, three drilling motors 24 and three drilling knives 25 which are respectively arranged above the document binding platform 11, the middle parts of the drilling lifting motor 21, the drilling lifting transmission mechanism 22, the drilling lifting seat 23 and the drilling lifting seat 23 are hollow, the lower wall body of the drilling lifting seat 23 is provided with cutting edges, the drilling lifting motor 21 is in transmission connection with the drilling lifting transmission mechanism 22, the drilling lifting transmission mechanism 22 is in transmission connection with the drilling lifting seat 23, the drilling lifting seat 23 is arranged on the frame 1 up and down in a sliding mode, the three drilling motors 24 are respectively fixed on the drilling lifting seat 23 at intervals transversely, the lower part of each drilling motor 24 is provided with a drilling transmission, three drill blades 25 are vertically aligned with three feed pins 31, respectively.

The upper portion of threading lift seat 34 is equipped with the mounting hole that three horizontal interval set up, the first end of three needle 31 of sending is inserted respectively and is fixed in the corresponding three mounting hole of threading lift seat 34, the first end of each needle 31 of sending is provided with location orientation installation department 313 respectively, location orientation installation department 313 includes a directional groove, directional step position or directional boss at least, the location orientation installation department 313 of each needle 31 of sending is spacing cooperation with corresponding mounting hole respectively to guarantee that fork line groove 311 and putting wire casing 12 parallel arrangement, the first end of three needle 31 of sending is fixed in threading lift seat 34 respectively. The drilling lifting seat 23 is driven to move up and down through the drilling lifting motor 21 and the drilling lifting transmission mechanism 22, the three drilling knives 25 are driven to rotate through the three drilling motors 24 respectively, then the three drilling knives 25 are driven to synchronously move downwards for drilling, three binding round holes which are arranged at a transverse interval are drilled out in a file fixed on the file binding platform 11, the three binding round holes are drilled out in the file automatically at one time in one drilling action, the drilling efficiency is improved, and the drilling lifting seat is synchronously moved upwards for resetting after the drilling is completed. The three drill knives 25 are respectively vertically aligned with the three wire feeding needles 31; the three drilling knives 25 are respectively arranged coaxially or concentrically with the three corresponding thread feeding needles 31, and the three thread feeding needles 31 are respectively arranged coaxially or concentrically with the three corresponding threading through holes 13.

The drilling lifting transmission mechanism 22 and the threading lifting transmission mechanism 33 adopt a gear rack transmission mechanism.

In a preferred embodiment, the thread feeding needle 31 is vertically installed below the document binding platform 11, the thread feeding needle 31 has a needle body extending a set length in the vertical direction, a thread forking slot 311 is formed at the upper end of the thread feeding needle 31, the upper part of the thread forking slot 311 is open and forms a thread inlet, the thread forking slot 311 transversely penetrates through the needle body, a forking slot wall 312 is respectively formed at the front side and the rear side of the forking slot 311, and the forking slot 311 is open on three sides. The upper portion of the forking slot 311 penetrates the upper portion of the needle body upward, the left and right sides of the forking slot 311 penetrate the left and right sides of the needle body respectively, and the front and rear sides of the forking slot 311 are respectively provided with a forking slot wall 312 extending upward.

The upper part of the thread feeding needle 31 is provided with at least one thread avoiding part, the thread avoiding part at least extends downwards to the middle part of the thread feeding needle 31 along the vertical direction, the upper part of the thread avoiding part extends upwards to the thread forking groove 311, and the width of the upper part of the thread feeding needle 31 along the longitudinal direction is smaller than that of the middle part or the lower part of the thread feeding needle 31. Specifically, the lower part of the thread feeding needle 31 is in a cylindrical shape, and the upper part of the thread feeding needle 31 is in a flat shape; specifically, the front side and the rear side of the thread feeding needle 31 are respectively provided with a thread avoiding portion, the outer side surface of the thread avoiding portion is a plane or an arc surface which is obliquely arranged relative to the vertical direction, and the longitudinal section of the thread crossing groove 311 is in a U shape or a V shape. The thread feeding needle 31 can accurately fork and lift and draw the binding thread when moving upwards, and draw the binding thread at the left side and the right side of the thread feeding needle 31 respectively, after the thread feeding needle 31 penetrates through the binding round holes of the files, the design of the thread avoiding part enables a space for containing the binding thread to be formed between the thread feeding needle 31 and the binding round holes, the binding thread is prevented from being clamped in the binding round holes due to the fact that the gap between the thread feeding needle 31 and the binding round holes is too small, meanwhile, the resistance force during thread feeding is reduced, the thread feeding is smoother, and the binding thread is prevented from being broken by pulling.

In the preferred embodiment, the thread avoiding part comprises an upper thread avoiding part 314 and a lower thread avoiding part 315, wherein the front side and the rear side of the upper part of the thread feeding needle 31 are respectively provided with the upper thread avoiding part 314, and the front side and the rear side of the middle part of the thread feeding needle 31 are respectively provided with the lower thread avoiding part 315; the upper end of the upper wire avoiding part 314 extends to the upper end of the fork line slot 311, the upper end of the lower wire avoiding part 315 is connected with the lower end of the upper wire avoiding part 314 on the same side, and the lower end of the lower wire avoiding part 315 extends to the middle or lower part of the wire feeding needle 31; the angle of inclination of the upper wire avoiding portion 314 with respect to the vertical direction is larger than that of the lower wire avoiding portion 315 on the same side with respect to the vertical direction. The upper thread avoiding portion 314 makes an upper thread accommodating space for accommodating binding threads larger between the upper portion of the thread feeding needle 31 and the binding round holes, the resistance of the thread feeding needle 31 to the binding threads is smaller when the thread feeding needle 31 moves upwards in an early stage of pulling the binding threads to be inserted into the corresponding binding round holes, the resistance of the binding round holes to the binding threads is also very small, the binding threads can slide freely in the thread forking grooves 311 of the thread feeding needles 31 respectively more easily when the threads are fed, the resistance of pulling the binding threads to move is smaller in the thread feeding process, the resistance of the thread feeding and pulling is easier when the threads are fed and pulled, the lower thread avoiding portion 315 makes a lower thread accommodating space slightly smaller than the upper thread accommodating space between the middle portion of the thread feeding needle 31 and the binding round holes, which ensures that the binding threads are pulled upwards smoothly, and makes the binding round holes of the document apply a proper friction force to the corresponding binding threads respectively, so that the thread feeding needle 31 can tighten the binding threads between the binding round holes at a later stage of pulling the binding threads upwards, the phenomenon that binding lines among the binding round holes are loosened is avoided.

The upper part of the thread feeding needle 31 is designed into a flat shape and is divided into three sections from top to bottom, the width of the section of the thread feeding needle 31 in each section of the thread feeding needle 31 is gradually increased, and the thread feeding needle 31 is also designed to be small at the top and large at the bottom as a whole, so that the thread feeding needle 31 has greater structural strength, the thread feeding needle 31 is prevented from swinging when drawing binding threads, the threading resistance is further reduced, and the thread feeding needle 31 is prevented from colliding with the files arranged on the file binding platform 11.

Specifically, the upper end of the thread feeding needle 31 is provided with a conical guide part in a conical shape or a frustum shape, the conical guide part is in a conical shape or a circular truncated cone shape placed in the forward direction, the conical guide part is small at the upper part and large at the lower part, the thread forking groove 311 only transversely penetrates through the upper part or the middle upper part of the conical guide part, or the thread forking groove 311 transversely penetrates through the whole conical guide part, the upper end of the thread forking groove wall 312 is in an arc shape, when the thread feeding needle 31 moves upwards, the binding thread can fall into or be clamped into the thread forking groove 311 more easily and automatically, the conical guide part plays a guiding role simultaneously, and when the thread feeding needle 31 is inserted upwards and penetrates through a binding round hole of a document, the.

A wire placing groove 12 is formed in the upper portion of the file binding platform 11, and the wire placing groove 12 transversely penetrates through the file binding platform 11; three threading through holes 13 are transversely arranged on the file binding platform 11 at intervals; the thread feeding needle 31 is vertically arranged below the file binding platform 11;

the second end part of each thread feeding needle 31 is movably inserted into the corresponding threading through hole 13 in the initial state, the thread placing groove 12 is at least overlapped with the upper part of the thread forking groove 311 in the initial state, two thread forking groove walls 312 on the upper part of each thread feeding needle 31 are respectively positioned at the front side and the rear side of the thread placing groove 12, the width of at least the upper part of the thread forking groove 311 is greater than the width of the thread placing groove 12 along the longitudinal direction, the upper end part of the thread forking groove wall 312 is not lower than the groove bottom of the thread placing groove 12 in the initial state, and the width of the upper part of the thread forking groove 311 is greater than the; the bottom of the thread placing groove 311 is not higher than the bottom of the thread placing groove 12, so that the binding thread accommodated in the thread placing groove 12 is positioned in the notch of the corresponding thread placing groove 311 before the thread feeding needle 31 moves upward. Each threading through hole 13 is respectively overlapped with the wire placing groove 12, the longitudinal width of the wire placing groove 12 in the longitudinal section is smaller than the longitudinal width or the inner diameter of each threading through hole 13, and the longitudinal width of the fork line groove 311 is larger than the longitudinal width of the wire placing groove 12; the width of the upper portion of each of the forking slot walls 312 in the lateral direction is less than the width of the lower portion of the same forking slot wall 312; the inner sides of the two fork line groove walls 312 and/or the bottom of the fork line groove 311 are provided with arc-shaped wire guide surfaces, so that the binding wire can slide relative to the fork line groove 311, the binding wire can conveniently penetrate through the binding circular holes and is pulled above the document by the wire feeding needle 31, and the wire feeding is smoother.

The inner side surface of the forking slot wall 312 is obliquely arranged, the width of the upper part of the forking slot 311 along the longitudinal direction of the file binding platform 11 is larger than the width of the lower part of the forking slot 311, and the binding line placed in the wire placing slot 12 can accurately fall into the forking slot 311 when the wire feeding needle 31 moves upwards each time; the width of the upper part of the forking groove wall 312 in the lateral direction of the document binding platform 11 is smaller than the width of the lower part of the forking groove wall 312, making it easier for the binding thread to fall into the forking groove 311.

In the initial state, or when the thread feeding needle 31 is at the initial position, or when the binding machine is in the standby state, or when the thread feeding needle 31 moves downward or returns to the initial position, the second end of each thread feeding needle 31 is movably inserted into the corresponding threading through hole 13, and in the initial state, the second end of each thread feeding needle 31 is positioned, so that the phenomenon that each thread feeding needle 31 swings during threading is avoided, and meanwhile, each thread feeding needle 31 strikes the file binding platform 11 during the process of moving upward and threading is avoided. The upper part of the file binding platform 11 is provided with a thread placing groove 12, the thread placing groove 12 transversely penetrates through the file binding platform 11, each threading through hole 13 is respectively overlapped on the thread placing groove 12, the longitudinal width of the thread placing groove 12 in the longitudinal section is smaller than the longitudinal width of each threading through hole 13, and the longitudinal width of the thread forking groove 311 is not smaller than the longitudinal width of the thread placing groove 12, so that the binding thread placed in the thread placing groove 12 can be accurately forked into the thread forking groove 311 when the thread feeding needle 31 moves upwards for threading, the binding thread can be smoothly pulled upwards, and the binding thread can smoothly pass through a binding round hole of a file.

The document binding platform 11 is provided with three sliding grooves 14 at intervals in the transverse direction, a rubber pad mounting plate 41 is slidably mounted in each sliding groove 14, and a conductive rubber pad 42 is mounted at the front part of each rubber pad mounting plate 41.

In the conventional thread-bound file binding machine, when the thread feeding needle 31 pulls the binding thread to move upward, the thread feeding needle 31 is swung by the pulling force of the binding thread and the force of the auxiliary thread pushing mechanism such as other thread pushing mechanisms, and the displacement of the upper end portion of the thread feeding needle 31 is maximized, which results in an extremely serious problem, if the upper end portion of the thread feeding needle 31 is not inserted into the threading through hole 13 of the file binding platform 11 when the upper end portion of the thread feeding needle 31 is displaced, there is a high possibility that the upper end portion of the thread feeding needle 31 directly hits against the bottom of the file binding platform 11 to directly hit the thread feeding needle 31, and even if the upper end portion of the thread feeding needle 31 is inserted into the threading through hole 13 of the file binding platform 11, there is a high possibility that the upper end portion of the thread feeding needle 31 is not aligned with the circular hole of the file fixed to the file binding platform 11 when the upper end portion of the thread feeding needle 31 passes through the top surface of the file binding platform 11 upward, and then lead to the upper end of the thread feeding needle 31 to directly impact on the bottom of the document or the upper end of the thread feeding needle 31 to impact on the outer edge of the binding round hole, which can also cause the thread feeding needle 31 to break or lead to the binding thread to be broken because of the overlarge threading resistance, and the utility model discloses fundamentally has eliminated these problems.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (10)

1. The utility model provides an improve automatic book-binding machine of line dress formula archives that send line needle structure, includes frame (1), file binding platform (11), drilling equipment (2) and send line device (3), and file binding platform (11) are installed in the middle part of frame (1), and drilling equipment (2) are installed in the top or the below of file binding platform (11), send line device (3) to install in the top or the below of file binding platform (11), its characterized in that: the thread feeding device (3) comprises a threading lifting mechanism and at least one thread feeding needle (31), a first end part of the thread feeding needle (31) is installed on the threading lifting mechanism, a thread forking groove (311) is formed in a second end part of the thread feeding needle (31), the outer side of the thread forking groove (311) is open and forms a thread inlet, and two opposite sides of the thread forking groove (311) are respectively provided with a thread forking groove wall (312).

2. The automatic binding machine for thread-bound files with improved thread feeding needle structure as claimed in claim 1, wherein: the upper part of the thread feeding needle (31) is provided with at least one thread avoiding part, the thread avoiding part at least extends downwards to the middle part of the thread feeding needle (31) along the vertical direction, the upper part of the thread avoiding part extends upwards to the thread forking groove (311), and the width of the upper part of the thread feeding needle (31) along the longitudinal direction is smaller than the width of the middle part or the lower part of the thread feeding needle (31).

3. The automatic binding machine for thread-bound files with improved thread feeding needle structure as claimed in claim 2, characterized in that: the lower part of the thread feeding needle (31) is in a cylindrical shape, and the upper part of the thread feeding needle (31) is in a flat shape; the front side and the rear side of the thread feeding needle (31) are respectively provided with the thread avoiding part, the outer side surface of the thread avoiding part is a plane or an arc surface which is obliquely arranged relative to the vertical direction, and the longitudinal section of the thread forking groove (311) is U-shaped or V-shaped.

4. The automatic binding machine for thread-bound files with improved thread feeding needle structure as claimed in claim 2, characterized in that: the yarn avoiding part comprises an upper yarn avoiding part (314) and a lower yarn avoiding part (315), the front side and the rear side of the upper part of the yarn feeding needle (31) are respectively provided with the upper yarn avoiding part (314), and the front side and the rear side of the middle part of the yarn feeding needle (31) are respectively provided with the lower yarn avoiding part (315); the upper end part of the upper wire avoiding part (314) extends to the upper end part of the fork line groove (311), the upper end part of the lower wire avoiding part (315) is connected with the lower end part of the upper wire avoiding part (314) on the same side, and the lower end of the lower wire avoiding part (315) extends to the middle part or the lower part of the wire feeding needle (31); the inclination angle of the upper avoiding line part (314) relative to the vertical direction is larger than that of the lower avoiding line part (315) on the same side relative to the vertical direction.

5. The automatic binding machine for thread-bound files with improved thread feeding needle structure as claimed in claim 1, wherein: a wire placing groove (12) is formed in the upper portion of the file binding platform (11), and the wire placing groove (12) transversely penetrates through the file binding platform (11);

three threading through holes (13) are transversely arranged on the file binding platform (11) at intervals;

the thread feeding needle (31) is vertically arranged below the file binding platform (11);

the second end of each thread feeding needle (31) is movably inserted into the corresponding threading through hole (13) in the initial state, the thread placing groove (12) is at least overlapped with the upper part of the thread forking groove (311) in the initial state, two thread forking groove walls (312) on the upper part of each thread feeding needle (31) are respectively positioned on the front side and the rear side of the thread placing groove (12), and at least the upper width of the thread forking groove (311) is larger than the width of the thread placing groove (12) along the longitudinal direction.

6. The automatic binding machine for thread-bound files with improved thread feeding needle structure as claimed in claim 5, wherein: the upper end part of the forked line groove wall (312) is not lower than the groove bottom of the line placing groove (12) in the initial state, and the width of the upper part of the forked line groove (311) in the longitudinal direction is larger than the width of the lower part of the forked line groove (311); the bottom of the fork line groove (311) is not higher than that of the line placing groove (12).

7. The automatic binding machine for thread-bound files with improved thread feeding needle structure as claimed in claim 6, wherein: each threading through hole (13) is respectively overlapped with the wire placing groove (12), the longitudinal width of the wire placing groove (12) in the longitudinal section is smaller than the longitudinal width or the inner diameter of each threading through hole (13), and the longitudinal width of the fork line groove (311) is larger than the longitudinal width of the wire placing groove (12); the width of the upper part of each cross line groove wall (312) along the transverse direction is less than that of the lower part of the same cross line groove wall (312); the inner sides of the two cross line groove walls (312) and/or the bottom of the cross line groove (311) are/is provided with an arc-shaped wire guide surface.

8. The automatic binding machine for thread-bound files with improved thread feeding needle structure as claimed in claim 5, wherein: the upper end part of the thread feeding needle (31) is provided with a conical or frustum-shaped guide part with a small upper part and a large lower part, the fork thread groove (311) only transversely penetrates through the upper part or the middle upper part of the conical guide part, or the fork thread groove (311) transversely penetrates through the whole conical guide part, and the fork thread groove (311) and the thread placing groove (12) are arranged in parallel.

9. The automatic binding machine for thread-bound documents with improved thread feeding needle structure according to any one of claims 1 to 8, wherein: the thread feeding device (3) is arranged below the file binding platform (11), the threading lifting mechanism comprises a threading lifting motor (32), a threading lifting transmission mechanism (33) and a threading lifting seat (34) which are respectively arranged below the file binding platform (11), the threading lifting motor (32) is in transmission connection with the threading lifting transmission mechanism (33), the threading lifting transmission mechanism (33) is in transmission connection with the threading lifting seat (34), the threading lifting seat (34) is vertically and slidably arranged on the rack (1), three thread feeding needles (31) are transversely arranged on the upper portion of the threading lifting seat (34) at intervals, first end portions of the thread feeding needles (31) are respectively fixed on the threading lifting seat (34), and second end portions of the thread feeding needles (31) respectively face upwards vertically;

the drilling device (2) is arranged above the document binding platform (11), the drilling device (2) is provided with a drilling lifting motor (21) and a drilling lifting transmission mechanism (22) which are respectively arranged above the document binding platform (11), the drilling machine comprises a drilling lifting seat (23), three drilling motors (24) and three drilling knives (25), wherein the middle parts of the drilling lifting seat (23) are hollow, the lower wall bodies of the three drilling motors are provided with cutting edges, the drilling lifting motor (21) is in transmission connection with a drilling lifting transmission mechanism (22), the drilling lifting transmission mechanism (22) is in transmission connection with the drilling lifting seat (23), the drilling lifting seat (23) is vertically and slidably mounted on a rack (1), the three drilling motors (24) are respectively and transversely fixed on the drilling lifting seat (23) at intervals, the lower part of each drilling motor (24) is provided with a drilling transmission shaft, and the three drilling knives (25) are respectively in transmission connection or fixedly mounted on corresponding drilling transmission shafts of the three drilling motors (24);

a wire placing groove (12) is formed in the upper portion of the file binding platform (11), and three threading through holes (13) are formed in the file binding platform (11) at intervals in the transverse direction;

the drilling device (2) and the wire feeding device (3) are arranged oppositely up and down, and the three drill cutters (25) are respectively vertically aligned with the three wire feeding needles (31);

the three drilling knives (25) are respectively and coaxially arranged or concentrically arranged with the corresponding three thread feeding needles (31), and the three thread feeding needles (31) are respectively and coaxially arranged or concentrically arranged with the corresponding three thread through holes (13).

10. The automatic binding machine for thread-bound documents with improved thread feeding needle structure as claimed in claim 9, wherein: the upper portion of threading lift seat (34) is seted up three mounting hole that horizontal interval set up, and the first end of three line needle (31) of sending is inserted respectively and is fixed in the corresponding three mounting hole of threading lift seat (34), and the first end of each line needle (31) of sending is provided with location orientation installation department (313) respectively, and location orientation installation department (313) include a directional groove at least, directional step position or directional boss, and location orientation installation department (313) of each line needle (31) of sending are respectively with corresponding mounting hole spacing cooperation.

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