Guide needle structure of financial binding machine

Abstract

A guide needle structure of a finance binding machine comprises a guide needle connected to a punching and riveting seat, and one end of the guide needle is sleeved with a guide needle spring so that the guide needle can move up and down to achieve buffering. A conductive connecting piece is arranged on the punching and riveting seat; the conductive connecting piece is connected with a guide needle conductive spring, the guide needle conductive spring comprises an elastic layer and an extending end, the extending end is used for being in contact with the guide needle, and the elastic layer is used for driving the extending end to elastically move up and down; the guide pin conductive spring has elastic deformation force, does not generate fatigue, and keeps effective contact with the guide pin, so that effective conduction of an electric signal is realized.

Description

Technical Field

[0001] This application relates to the technical field of financial binding machines, specifically to a guide pin structure for a financial binding machine. Background Technology

[0002] A financial binding machine is a device that punches and binds documents. Its structure generally includes a motor assembly, guide pin, guide pin spring, fixed base, guide pin conductive plate, and conductive connector. The lower end of the guide pin is fitted with a guide pin spring, which is connected to the fixed base. The guide pin conductive plate is connected to the fixed base via a conductive connector, which has a signal wire. The mainboard of the financial binding machine uses this signal wire to supply 5V voltage to the conductive connector and the guide pin conductive plate. During operation, when the upper end of the guide pin is obstructed, it causes the guide pin to press downwards against the guide pin spring, and the lower end of the guide pin moves towards the guide pin conductive plate, making contact with it and establishing an electrical connection with the signal wire. This grounds the 5V signal wire of the binding machine's mainboard, creating a voltage difference. The mainboard then determines that the guide pin has moved downwards, triggering an alarm and issuing a command to stop the binding machine, preventing the guide pin from continuing to move excessively and damaging other components.

[0003] Currently, the guide pin conductive sheet used in financial binding machines lacks elastic deformation force or its elastic deformation force is negligible. Because the guide pin conductive sheet lacks ideal elastic deformation force, repeated contact and pushing between the guide pin tip and the conductive sheet will cause irreversible deformation of the conductive sheet. This shifts the contact position between the conductive sheet and the guide pin tip, preventing effective contact and leading to structural failure. This hinders effective transmission of electrical signals and can easily cause alarm malfunctions. Utility Model Content

[0004] This application addresses the aforementioned shortcomings of the prior art by providing a guide pin structure for a financial binding machine that possesses elastic deformation force, does not generate fatigue, maintains effective contact with the guide pin, and thereby achieves effective transmission of electrical signals.

[0005] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: a guide pin structure for a financial binding machine, the structure including a guide pin connected to a punching and riveting base; a guide pin spring is sleeved on one end of the guide pin to buffer the up-and-down movement of the guide pin; a conductive connector is provided on the punching and riveting base; a guide pin conductive spring is connected to the conductive connector, the guide pin conductive spring including an elastic layer and an extension end, the extension end being used to contact the guide pin, and the elastic layer being used to drive the extension end to move up and down elastically.

[0006] By employing the above structure, this application incorporates a guide pin conductive spring on the fixed base. This guide pin conductive spring, with its elastic layer and extended end, possesses elastic movement capabilities at its extended end. When the guide pin is subjected to compressive or downward pressure, it gradually compresses and squeezes the guide pin spring. When compressed to a certain extent, the end of the guide pin, located within the rivet head, contacts the extended end of the guide pin conductive spring. Due to the elastic layer, the guide pin conductive spring can undergo elastic deformation, preventing fatigue. Even after repeated contact and compression by the guide pin, it can still achieve accurate reset, thus establishing a stable contact connection with the end of the guide pin. This enables effective transmission of electrical signals, allowing the 5V signal line of the binding machine's main board to achieve stable grounding and generate a voltage difference. The main board then determines that the guide pin is descending, triggering an alarm and issuing a command to stop the binding machine, preventing the guide pin from continuing to run excessively and damaging other components. This structure overcomes the shortcomings of existing conductive sheets lacking elasticity, which suffer irreversible deformation leading to structural failure.

[0007] Furthermore, the tail end of the extension is provided with a bending head, which extends toward the side where the elastic layer is located; that is, the bending head bends in the opposite direction to the direction where the guide needle spring is located, or in other words, it extends obliquely toward the side where the elastic layer is located. The setting of the bending head is conducive to the extension end swinging up and down, thereby transmitting the deformation and squeezing force generated by the guide needle on the extension end to the elastic layer. Under the drive of the elastic layer, the extension end is accurately reset and makes a stable contact with the guide needle.

[0008] Furthermore, the lower end of the punching and riveting base is connected to a fixed base, and the conductive connector is fixed on the fixed base. There is a space between the fixed base and the conductive connector for the axial elastic deformation of the elastic layer. With this structure, the conductive connector enables electrical connection between the guide pin and the extension end of the guide pin conductive spring after contact. It also enables the guide pin conductive spring to be connected to the fixed base. The elastic deformation space provides sufficient deformation space for the elastic layer, allowing the elastic layer to provide elastic restoring force to the extension end and achieve stable contact with the guide pin.

[0009] Furthermore, the fixed base is provided with a receiving hole for accommodating the retractable end of the guide pin. The receiving hole has a side wall notch, and the extension end extends into the receiving hole through the side wall notch. With this structure, the extension end can contact the guide pin through the receiving hole. Moreover, the extension end is introduced into the receiving hole through the side wall notch, and the other end is connected to the elastic layer. Thus, when the guide pin squeezes the extension end, this squeezing force can be transmitted to the elastic layer, thereby achieving elastic reset of the extension end through the elastic layer, ensuring the accuracy of the contact position with the guide pin.

[0010] Furthermore, the vertical distance between the elastic layer and the upper and lower parts of the guide pin is not less than the vertical distance between the extension end and the upper and lower parts of the guide pin. With this structure, when the guide pin touches and squeezes the extension end, this squeezing contact force can be transmitted to the entire elastic layer, so that the elastic layer has a stable elastic pushing force on the extension end to maintain the stability of the contact between the extension end and the guide pin.

[0011] Furthermore, the elastic layer and the extension end are integrally formed; with this structure, the squeezing and contact forces from the extension end can be transmitted to the elastic layer more quickly and steadily, so that the elastic layer has a stable elastic pushing force on the extension end, so as to maintain the stability of the contact between the extension end and the guide needle.

[0012] Furthermore, a fitting post is provided on the fixing base near the receiving hole, the guide needle conductive spring is fitted onto the fitting post, and the conductive connector is connected inside the fitting post. One end of the guide needle conductive spring abuts against the inner top wall of the fixing base, and the other end abuts against the conductive connector. With this structure, the elastic layer of the guide needle conductive spring can elastically expand and contract along the upper and lower parts of the fitting post, preventing it from shifting. Moreover, the fitting post has a certain axial extension length, providing sufficient deformation space for the elastic expansion and contraction of the elastic layer.

[0013] Furthermore, the extension end extends along the tangential direction of the elastic layer. This structure allows the pressure exerted by the guide pin on the extension end to be better transmitted to the elastic layer.

[0014] Furthermore, the sidewall notch is located in the tangential direction of the fitting post. This structure makes it easier for the extension end to extend into the receiving hole. Attached Figure Description

[0015] Figure 1 First view structural diagram of the drilling and riveting seat for setting the guide pin of this application.

[0016] Figure 2 A second view of the structure of the punching and riveting seat that provides the guide pin for this application.

[0017] Figure 3 This application presents a schematic diagram showing the visible positions of the guide pin and the guide pin conductive spring.

[0018] Figure 4 First view structural schematic diagram of the sectional view of the drilling and riveting seat that sets the guide pin of this application.

[0019] Figure 5 The second view of the cross-sectional view of the drilling and riveting seat that sets the guide pin of this application is a structural schematic diagram.

[0020] Figure 6 This application presents an exploded view of the guide pin structure's partial location mechanism.

[0021] Figure 7 This application presents a structural diagram of the mounting base.

[0022] Figure 8 This application presents a schematic diagram of the structure after the fixed base and the guide pin conductive spring are assembled.

[0023] Figure 9 This application presents a schematic diagram of the conductive spring for the guide pin.

[0024] Figure 10 This application presents a structural schematic diagram of a partial cross-sectional view showing the positional relationship between the guide pin conductive spring and the guide pin.

[0025] As shown in the attached diagram: 1. Guide pin, 2. Rivet head, 3. Drilling and riveting seat, 4. Guide pin spring, 5. Fixing seat, 501. Accommodating hole, 502. Side wall notch, 503. Fitting post, 6. Guide pin conductive spring, 601. Elastic layer, 602. Extension end, 603. Bending head, 7. Drive motor assembly, 8. Conductive connector. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are merely preferred embodiments, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] Furthermore, it should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or it may be fixed via another intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or it may be fixed via another intermediate component. When a component is considered to be "set on" another component, it can be set directly on the other component or it may be fixed via another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms "and" and "or" as used herein include any and all combinations of one or more of the associated listed items.

[0028] As attached Figure 1-10As shown, this application discloses a guide pin structure for a financial binding machine. The structure includes a guide pin 1 connected to a punching and riveting base 3. One end of the guide pin 1 is fitted with a guide pin spring 4 to provide buffering for the up-and-down movement of the guide pin 1. A conductive connector 8 is provided on the punching and riveting base 3.

[0029] Specifically, the guide pin 1 is connected to the drilling and riveting seat 3 via a rivet head 2. One end of the guide pin 1 extends out of the rivet head 2 to receive the riveting tube, and the other end extends into the interior of the rivet head 2. A guide pin spring 4 is sleeved on the guide pin 1 extending into the rivet head 2. The drilling and riveting seat 3 has a space for accommodating a fixing seat 5. The fixing seat 5 is placed in this space, and the two are connected to each other by screws or bolts. The guide pin spring 4 is pressed between the guide pin 1 and the fixing seat 5. That is, one end of the guide pin spring 4 abuts against the stepped surface of the guide pin 1. This stepped surface is formed by a radial convex ring with an outer diameter larger than the outer diameter of the guide pin 1. The other end abuts against the stepped surface of the fixing seat 5. The guide pin spring 4 deforms axially with the guide pin 1 between the two stepped surfaces.

[0030] The conductive connector 8 is also connected to a guide pin conductive spring 6. The guide pin conductive spring 6 includes an elastic layer 601 and an extension end 602. The extension end 602 is used to contact the guide pin 1. The elastic layer 601 is used to drive the extension end 602 to move up and down elastically, that is, to elastically push the extension end 602 to accurately return to its elastic reset and contact the end of the extended guide pin 1.

[0031] Specifically, a drive motor assembly 7 is also provided on the punching and riveting base 3. This is a conventional drive assembly for binding machines, used to adjust the work position by rotating the punching and riveting base 3. When the guide pin 1 is axially compressed, the guide pin spring 4 is compressed, and the end of the guide pin 1 located inside the rivet head 2 moves toward the extension end 602 of the guide pin conductive spring 6 on the conductive connector 8 and contacts the extension end 602, thereby realizing the connection of electrical signals.

[0032] Using the above structure, this application provides a guide pin conductive spring 6 on the fixed base 5. Because the guide pin conductive spring 6 has an elastic layer 601 and an extension end 602, the extension end 602 of this structure possesses elastic movement performance. When the guide pin 1 is subjected to pressure or downward force, the guide pin 1 moves downward and compresses the guide pin spring 4. When compressed to a certain extent, the end of the guide pin 1, i.e., the end of the guide pin 1 located inside the rivet head 2, contacts the extension end 602 of the guide pin conductive spring 6. Due to the elastic layer 601, the extension end 602 can undergo elastic deformation, thus preventing fatigue. Even if repeatedly touched and compressed by the guide pin 1, it can still achieve accurate reset, thereby achieving a stable contact connection with the end of the guide pin 1. This enables effective transmission of electrical signals, allowing the 5V signal line of the binding machine's main board to achieve stable grounding and generate a voltage difference. The main board can then determine that the guide pin is moving downward and issue an alarm, causing the main board to issue a command to stop the binding machine, preventing the guide pin from continuing to move excessively and damaging other components. The structure described in this application overcomes the defect of existing conductive sheets that fail due to irreversible deformation caused by the lack of elasticity.

[0033] As attached Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 9-10 As shown, the tail end of the extension end 602 described in this application is provided with a bending head 603, which extends toward the side where the elastic layer 601 is located; that is, the bending head 603 bends in the opposite direction to where the guide needle spring 4 is located, or extends obliquely toward the side where the elastic layer 601 is located; see attached figure for details. Figure 9 The extension end 602 is composed of a horizontal extension portion and a bending head 603 portion. The horizontal extension portion is fixedly connected to the elastic layer 601. The bending head 603 is provided to facilitate the extension end 602 to swing up and down, that is, to swing up and down along the axial direction of the guide needle 1. This transmits the deformation and squeezing force generated by the guide needle 1 on the extension end 602 to the elastic layer 601. Under the drive of the elastic layer 601, the extension end 602 is accurately reset and makes a stable contact with the guide needle 1.

[0034] As attached Figure 3-6 As shown, the lower end of the punching and riveting base 3 described in this application is connected to a fixing base 5. The conductive connector 8 is fixed on the fixing base 5, and there is a space between the fixing base 5 and the conductive connector 8 for the axial elastic deformation of the elastic layer 601. When not in contact with the guide pin 1, the above-mentioned elastic deformation space allows the elastic layer 601 to be in an elastically extended state. When in contact, the elastic layer 601 is elastically compressed to provide sufficient elastic pushing force to the extension end 602 so that it can make stable contact with the guide pin 1.

[0035] This structure allows for the connection between the guide pin conductive spring 6 and the fixed base 5, while also providing sufficient elastic deformation space for the elastic layer 601. This enables the elastic layer 601 to provide sufficient elastic restoring force to the extension end 602, achieving stable contact with the guide pin 1. The conductive connector 8 of this application is used to fix the signal line on the binding machine (the signal line can be sleeved on the conductive connector 8 and electrically connected to the conductive connector 8; the main board of the binding machine uses the signal line to make the conductive connector 8 and the guide needle conductive spring 6 carry a 5V voltage) and the guide needle conductive spring 6. When the guide needle 1 touches the extension end 602, the guide needle conductive spring 6, the conductive connector 8 and the signal line are connected. At this time, the 5V signal line of the binding machine main board is grounded, generating a voltage difference. The main board can then determine that the guide needle is descending and issue an alarm, causing the main board to issue a command to control the binding machine to stop running, so as to prevent the guide needle from continuing to run excessively and damaging or damaging other components. Specifically, the conductive connector 8 can be a screw, bolt or other structure that can play a fixing role and is itself conductive. A threaded hole is provided on the fixing base 5 to realize the connection between the conductive connector 8 and the fixing base 5, and the guide needle conductive spring 6 is connected between the two.

[0036] As attached Figure 4-5 ,and Figure 7-8 As shown, the fixing base 5 of this application is provided with a receiving hole 501 for accommodating the retractable end of the guide pin 1. The receiving hole 501 is provided with a side wall notch 502, and the extension end 602 extends into the receiving hole 501 through the side wall notch 502. The receiving hole 501 is coaxially arranged with the guide pin and can be a through hole penetrating the fixing base 5. The side wall notch 502 is provided on one side of the receiving hole 501 to facilitate the introduction of the extension end 602 into the receiving hole. The extension end 602 and the guide needle 1 can be contacted through the receiving hole 501. The extension end 602 is introduced into the receiving hole 501 from the side wall notch 502, and the other end is connected to the elastic layer 601. When the guide needle 1 squeezes the extension end 602, the squeezing force can be transmitted to the elastic layer 601, thereby achieving elastic reset of the extension end 602 through the elastic layer 601, ensuring the accuracy of the contact position with the guide needle 1.

[0037] As an example, the vertical distance between the elastic layer 601 and the guide pin 1 described in this application is not less than the vertical distance between the extension end 602 and the guide pin 1; that is, as shown in the attached figure. Figure 3-5 As shown, the extension end 602 is closer to the contact end of the guide needle 1 relative to the elastic layer 601, so that after the tip of the guide needle 1 touches the extension end 602, the contact pressure is transmitted towards the elastic layer 601 to adhere to the elastic layer 601. Figure 3-5As shown in the diagram, the extension end 602 is located on the upper part of the elastic layer 601. When the guide needle 1 touches and squeezes the extension end 602, this squeezing and touching force can be transmitted to the entire elastic layer 601, causing the elastic layer 601 to undergo elastic deformation and exert a stable elastic pushing force on the extension end 602 to maintain the stability of the contact between the extension end 602 and the guide needle 1.

[0038] As an example, the elastic layer 601 and the extension end 602 described in this application are integrally formed; that is, the two can be made by winding and molding an elastic material. For example, the elastic layer 601 has a straight spring structure, while the extension end 602 can be formed by extending out in the tangential direction of one end of the straight spring. With this structure, the squeezing and contact forces from the extension end 602 can be transmitted to the elastic layer 601 more quickly and steadily, so that the elastic layer 601 has a stable elastic pushing force on the extension end 602 to maintain the stability of the contact between the extension end 602 and the guide needle 1.

[0039] As attached Figure 4-5 and attached Figure 7-8 As shown, a fitting post 503 is provided on the fixing base 5 near the receiving hole 501. The guide needle conductive spring 6 is fitted onto the fitting post 503, and the conductive connector 8 is connected inside the fitting post 503. One end of the guide needle conductive spring 6 abuts against the inner top wall of the fixing base 5, and the other end abuts against the conductive connector 8. That is, the two ends of the elastic layer 601 mainly achieve corresponding abutment, and the elastic layer 601 has an axial elastic deformation space. With this structure, the elastic layer 601 of the guide needle conductive spring 6 elastically expands and contracts along the fitting post 503 and guides, preventing it from shifting. Moreover, the fitting post 503 has a certain axial extension length, providing sufficient deformation space for the elastic expansion and contraction of the elastic layer 601.

[0040] As attached Figure 7 As shown, the extension end 602 of this application extends along the tangential direction of the elastic layer 601, that is, the elastic layer 601 can be composed of multiple spirally wound elastic circular layers. With this structure, the pressure of the extension end being touched and squeezed by the guide pin 1 is better transmitted to the elastic layer 601.

[0041] As attached Figure 7-8 As shown, the side wall notch 502 described in this application is located in the tangential direction of the fitting post 503. When the elastic layer 601 of the guide needle conductive spring 6 is fitted onto the fitting post 503, the extension end 602 extends from the side wall notch 502 into the receiving hole 501.

[0042] The working principle and operation process of the guide pin structure (guide pin assembly structure) of the financial binding machine described above in this application are as follows: The extension end 602 of the guide pin conductive spring 6 can perform elastic movement. When the guide pin 1 is subjected to squeezing force or downward pressure, the guide pin 1 will move downward and compress the guide pin spring 4. When compressed to a certain extent, the lower end of the guide pin 1 (such as...) Figure 1-5 As shown in the diagram (the lower end of the guide pin 1), it contacts the extension end 602 of the guide pin conductive spring 6. Because the guide pin conductive spring 6 has an elastic layer 601 that can undergo elastic deformation, the extension end 602 will not fatigue during repeated compression and contact processes, thus ensuring the accuracy of the reset of the extension end 602 and achieving a stable and tight contact with the lower end of the guide pin 1, thereby achieving a stable connection of the electrical signal. In addition, this application also provides a bending head 603 at the tail end of the extension end 602. This bending head 603 has a guiding function, which is more conducive to the extension end 602 swinging up and down in the circumferential direction, thereby transmitting the extrusion force to the elastic layer 601, realizing the elastic push of the elastic layer 601 on the extension end 602, and achieving stable contact with the guide pin 1.

Claims

1. A guide pin structure for a financial binding machine, comprising a guide pin (1) connected to a punching and riveting seat (3), wherein a guide pin spring (4) is sleeved on one end of the guide pin (1) to buffer the up and down movement of the guide pin (1); and a conductive connector (8) is provided on the punching and riveting seat (3). Its features are: The conductive connector (8) is connected to a guide needle conductive spring (6). The guide needle conductive spring (6) includes an elastic layer (601) and an extension end (602). The extension end (602) is used to contact the guide needle (1). The elastic layer (601) is used to drive the extension end (602) to move up and down elastically.

2. The guide pin structure for a financial binding machine according to claim 1, characterized in that: The tail end of the extension end (602) is provided with a bending head (603), which extends toward the side where the elastic layer (601) is located.

3. The guide pin structure for a financial binding machine according to claim 1, characterized in that: The lower end of the punching and riveting base (3) is connected to a fixed base (5), the conductive connector (8) is fixed on the fixed base (5), and there is a space between the fixed base (5) and the conductive connector (8) for the axial elastic deformation of the elastic layer (601).

4. The guide pin structure for a financial binding machine according to claim 3, characterized in that: The fixed base (5) is provided with a receiving hole (501) for accommodating the end of the guide pin (1) to extend and retract. The receiving hole (501) is provided with a side wall notch (502). The extension end (602) extends into the receiving hole (501) from the side wall notch (502).

5. The guide pin structure for a financial binding machine according to claim 1, characterized in that: The vertical distance between the elastic layer (601) and the guide pin (1) is not less than the vertical distance between the extension end (602) and the guide pin (1).

6. The guide pin structure for a financial binding machine according to claim 1, characterized in that: The elastic layer (601) and the extension end (602) are integrally formed.

7. The guide pin structure for a financial binding machine according to claim 4, characterized in that: A fitting post (503) is provided on the fixed base (5) near the receiving hole (501). The guide needle conductive spring (6) is fitted on the fitting post (503). The conductive connector (8) is connected inside the fitting post (503). One end of the guide needle conductive spring (6) abuts against the inner top wall of the fixed base (5), and the other end abuts against the conductive connector (8).

8. The guide pin structure for a financial binding machine according to claim 7, characterized in that: The extension end (602) extends along the tangential direction of the elastic layer (601).

9. The guide pin structure for a financial binding machine according to claim 8, characterized in that: The side wall notch (502) is located in the tangential direction of the fitting column (503).

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