An adjustable pitch office paper punch

Abstract

The utility model discloses an office paper puncher of adjustable hole distance, including mounting bracket, puncher, distance adjusting subassembly, the mounting bracket includes base, side edge board, backplate, the base both sides edge respectively fixedly connected with side edge board, fixedly connected with backplate between the side edge board, backplate lower extreme and base edge fixed connection, the base upper end has seted up the slide groove, a plurality of punchers are connected in the slide groove, and the puncher is connected with distance adjusting subassembly respectively between the distance adjusting subassembly. The utility model discloses a kind of office paper puncher of stable structure, convenient operation, hole distance adjustable.

Description

Technical Field

[0001] This utility model relates to the field of hole punching machine technology, specifically an office paper hole punching machine with adjustable hole spacing. Background Technology

[0002] In areas such as office document organization, invoice archiving, and file management, punching and binding paper is a common operational requirement. Traditional office paper punching machines typically use a fixed hole spacing design, and the position of the punching head is not adjustable, only meeting the punching needs of specific sizes (such as standard A4 paper, specific invoice sizes, etc.). However, in actual office scenarios, paper sizes are diverse (such as reports of different sizes, customized documents, etc.), and fixed hole spacing punching machines are difficult to adapt to the needs of multiple scenarios. It is necessary to frequently change punching equipment of different sizes or manually mark the positioning and re-punch, resulting in low operating efficiency and easy deviation of hole position due to human error.

[0003] To address the aforementioned issues, some improved punching machines have attempted to adjust the hole spacing by adding movable punching heads. However, existing technologies generally suffer from the following drawbacks in their adjustment structures: First, the movement of the punching heads relies heavily on manual pushing, lacking precise positioning and locking mechanisms, making it difficult to guarantee the accuracy of the adjusted hole spacing and prone to misalignment. Second, the spacing adjustment between adjacent punching heads requires individual operation, making synchronous and equidistant adjustment impossible, resulting in poor hole spacing consistency during multi-hole punching. Third, the force application structure during punching is poorly designed, leading to uneven punching pressure and potentially causing paper damage or rough edges. Fourth, the overall structure is complex, the operation is cumbersome, and maintenance costs are high.

[0004] Furthermore, traditional punching machines typically employ a single pressure rod with a spring-loaded elastic return mechanism. While this achieves basic punching action, the spring is prone to fatigue and failure during frequent use, leading to uneven pressure rod return and impacting punching efficiency and stability. Additionally, existing technologies lack efficient and compact transmission mechanisms for the coordinated adjustment of multiple punch heads, making it difficult to achieve synchronous adjustment across multiple positions within a limited space, thus limiting the equipment's versatility and practicality.

[0005] Therefore, there is an urgent need for a new type of office paper punching machine with optimized structure, convenient adjustment, and the ability to achieve precise equidistant punching. Summary of the Invention

[0006] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide an office paper punching machine with stable structure, convenient operation and adjustable hole spacing.

[0007] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: an adjustable hole spacing office paper punching machine, including a mounting frame, punching devices, and a spacing adjustment component. The mounting frame includes a base, side plates, and a back plate. Side plates are fixedly connected to the two sides of the base, and a back plate is fixedly connected between the side plates. The lower end of the back plate is fixedly connected to the edge of the base. A sliding guide groove is provided at the upper end of the base. A plurality of punching devices are slidably connected in the sliding guide groove. Each punching device is connected to the spacing adjustment component. In this utility model, the punching devices are restricted in movement by the sliding guide groove, and the spacing adjustment component adjusts the distance between adjacent punching devices.

[0008] In the above technical solution, the drilling device includes a support frame, a pressure rod, a support head, a helical spring, a pressure plate, and a processing block. The bottom of the support frame is slidably connected in a guide groove. A processing port is opened on one side of the support frame, and a processing block is fixedly connected to the bottom of the processing port. An installation hole is opened on the support frame above the processing port, and a pressure rod is movably connected in the installation hole. One end of the pressure rod passes through the processing port and is connected to the support head. The bottom of the support head is adapted to the processing block. The other end of the pressure rod passes through the upper end of the installation hole and is fixedly connected to the rotating shaft sleeve. A helical spring is sleeved on the pressure rod located in the installation hole. The lower end of the helical spring abuts against the inner wall of the installation hole, and the other end of the helical spring abuts against the pressure plate. The pressure plate is fixedly connected to the pressure rod.

[0009] In the above technical solution, a pivot hole is opened at the upper end of the support frame, and a pivot rod is rotatably connected in the pivot hole. Both ends of the pivot rod are rotatably connected to the side plate. A handle is fixedly connected to the pivot rod on one side of the side plate. A linkage rod is rotatably connected in the pivot sleeve at the top of the pressure rod. A sliding groove hole is opened on the side plate, and both ends of the linkage rod are slidably connected in the sliding groove hole. One side of the handle is in contact with the linkage rod, and the ends of the handle are fixedly connected to the operating rod.

[0010] In the above technical solution, the adjusting assembly includes a bidirectional lead screw, a diamond-shaped telescopic mechanism, a guide rod, a sliding rail, and sliding blocks. The bidirectional lead screw is rotatably connected between two sets of side plates. A sliding guide hole is provided on the support frame, and the bidirectional lead screw is slidably connected in the sliding guide hole. The two outermost sets of support frames are respectively provided with screw sleeves, which are fixedly connected in the sliding guide hole and threadedly connected to the bidirectional lead screw. Guide holes are provided on the support frames on both sides of the sliding guide hole, and guide rods are slidably connected in the guide holes. The two ends of the guide rods are fixedly connected to the side plates. A sliding groove is provided at one end of the support frame, and a sliding rail is fixedly connected in the sliding groove. Two sets of sliding blocks are slidably connected on the sliding rail, and the sliding blocks are respectively connected to the diamond-shaped telescopic mechanism.

[0011] In the above technical solution, one end of the bidirectional lead screw passes through the side plate and is fixedly connected to the knob block.

[0012] The beneficial effects of this utility model are:

[0013] 1. Precise and efficient hole spacing adjustment: The hole spacing adjustment component adopts a coordinated design of bidirectional lead screw and diamond telescopic mechanism. Rotating the knob block can synchronously drive multiple sets of punching devices to move equidistantly along the guide groove, realizing synchronous equidistant adjustment of multiple hole positions. This avoids the tedious operation of manually adjusting each hole one by one in traditional punching machines, significantly improving adjustment efficiency and hole spacing consistency, and meeting the punching needs of diverse paper specifications.

[0014] 2. Stable and reliable punching operation: The sliding guide groove of the punching device slides in conjunction with the support frame, strictly limiting the movement trajectory of the punching head and ensuring accurate punching position; the elastic reset structure of the pressure rod and the spiral spring, combined with the linkage design of the linkage rod and the handle, can drive all pressure rods to press down evenly when the operating rod is pressed, so that each punching head is subjected to consistent force, effectively avoiding paper damage or rough edges caused by excessive pressure in a single hole, and improving the stability of punching quality.

[0015] 3. High reliability of adjustment and locking: The threaded connection structure between the two-way lead screw and the screw sleeve can fix the position of the drilling device through thread self-locking after adjustment, avoiding hole spacing deviation caused by external force collision, effectively ensuring the accuracy of drilling position, reducing human error, and improving operational reliability.

[0016] 4. High ease of operation: The rotating connection design of the handle and linkage rod integrates the pressing action of multiple pressure rods into a single handle press operation, eliminating the need to apply force to each drilling device individually, simplifying the operation steps; the intuitive adjustment method of the knob block makes the hole spacing adjustment process visible, further improving the ease of use of the equipment.

[0017] 5. Excellent structural durability: The elastic return design of the helical spring buffers the impact of drilling, extending the service life of the pressure bar and related components; the low-friction sliding fit between the guide groove and the support frame reduces component wear, lowers the frequency of later maintenance, and saves operating costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the punching device and the adjusting component of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the punching devices of this utility model;

[0022] Figure 5 This is a schematic diagram of the drilling device of this utility model.

[0023] In the diagram: 1. Mounting bracket, 2. Drilling device, 3. Adjustable distance assembly, 4. Base, 5. Side plate, 6. Back plate, 7. Sliding guide groove, 101. Support frame, 102. Pressure rod, 103. Support head, 104. Helical spring, 105. Pressure plate, 106. Machining block, 107. Machining port, 108. Mounting hole, 109. Rotary bushing, 201. Rotary shaft hole, 202. Rotary shaft rod, 203. Handle, 204. Linkage rod, 205. Sliding groove hole, 206. Operating lever, 301. Two-way lead screw, 302. Diamond telescopic mechanism, 303. Guide rod, 304. Sliding rail, 305. Sliding block, 306. Sliding guide hole, 307. Screw sleeve, 308. Guide hole, 309. Sliding groove, 310. Knob block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 An adjustable hole spacing office paper punch includes a mounting frame 1, punching devices 2, and a spacing adjustment component 3. The mounting frame 1 includes a base 4, side plates 5, and a back plate 6. The side plates 5 are fixedly connected to the two sides of the base 4, and the back plate 6 is fixedly connected between the side plates 5. The lower end of the back plate 6 is fixedly connected to the edge of the base 4. A sliding guide groove 7 is provided at the upper end of the base 4. A plurality of punching devices 2 are slidably connected in the sliding guide groove 7. The punching devices 2 are respectively connected to the spacing adjustment component 3. In this utility model, the punching devices 2 are restricted in movement by the sliding guide groove 7, and the spacing adjustment component 3 adjusts the distance between adjacent punching devices 2.

[0026] In the above technical solution, the drilling device 2 includes a support frame 101, a pressure rod 102, a support head 103, a helical spring 104, a pressure plate 105, and a processing block 106. The bottom of the support frame 101 is slidably connected to the guide groove 7. A processing port 107 is opened on one side of the support frame 101. The bottom of the processing port 107 is fixedly connected to the processing block 106. An installation hole 108 is opened on the support frame 101 above the processing port 107. The pressure rod 102 is movably connected in the installation hole 108. One end of the pressure rod 102 passes through the processing port 107 and is connected to the support head 103. The support frame 103 is directly below the processing block 106. The other end of the pressure rod 102 passes through the upper end of the mounting hole 108 and exits the support frame 101, and is fixedly connected to the rotating shaft sleeve 109. A helical spring 104 is sleeved on the pressure rod 102 located in the mounting hole 108. The lower end of the helical spring 104 abuts against the inner wall of the mounting hole 108, and the other end of the helical spring 104 abuts against the pressure plate 105. The pressure plate 105 is fixedly connected to the pressure rod 102. A rotating shaft hole 201 is opened at the upper end of the support frame 101. The rotating shaft rod 202 is rotatably connected in the rotating shaft hole 201. The two ends of the rotating shaft rod 202 are respectively rotatably connected. The handle 203 is fixedly connected to the rotating shaft 202 on one side of the side plate 5. A linkage rod 204 is rotatably connected to the rotating shaft sleeve 109 at the top of the pressure rod 102. A sliding groove 205 is provided on the side plate 5, and both ends of the linkage rod 204 are slidably connected within the sliding groove 205. One side of the handle 203 contacts the linkage rod 204, and the ends of the handle 203 are fixedly connected to the operating rod 206. In operation, the office paper to be punched is placed into the processing port 107, and then the operating rod 206 is pressed, causing the operating rod 206 to move the handle 203. Flip the lever downwards, and the handle 203 presses the linkage rod 204 downwards. The linkage rod 204 drives the pressure rod 102 downwards through the rotating shaft sleeve 109. The lower end of the pressure rod 102 drives the support head 103 to move towards the processing block 106. Through the cooperation of the processing block 106 and the support head 103, the office paper is punched. After punching is completed, the operating lever 206 is released. At this time, the spiral spring 104 pushes the pressure plate 105 upwards. The pressure plate 105 drives the pressure rod 102 upwards. The pressure rod 102 drives the handle 203 upwards to the initial position through the linkage rod 204.

[0027] In the above technical solution, the adjusting assembly 3 includes a bidirectional lead screw 301, a diamond-shaped telescopic mechanism 302, a guide rod 303, a sliding rail 304, and a sliding block 305. The bidirectional lead screw 301 is rotatably connected between two sets of side plates 5. A sliding guide hole 306 is provided on the support frame 101, and the bidirectional lead screw 301 is slidably connected in the sliding guide hole 306. The two outermost sets of support frames 101 are respectively provided with screw sleeves 307, which are fixedly connected in the sliding guide hole 306 and threadedly connected to the bidirectional lead screw 301. Guide holes 308 are respectively provided on the support frames 101 on both sides of the sliding guide hole 306, and guide rods 303 are slidably connected in the guide holes 308. The two ends of the guide rods 303 are respectively fixedly connected to the side plates 5. One end of the support frame 101 is provided with a sliding groove 309, and a sliding rail 304 is fixedly connected in the sliding groove 309. Two sets of sliding blocks 305 are slidably connected on the sliding rail 304. The sliding blocks 305 are respectively connected to the rhomboid telescopic mechanism 302. One end of the bidirectional lead screw 301 passes through the side plate 5 and is fixedly connected to the knob block 310. In specific operation, the knob block 310 is rotated, and the knob block 310 drives the bidirectional lead screw 301 to rotate. The bidirectional lead screw 301 drives the two outermost sets of support frames 101 to move relative to each other through the screw sleeve 307. The two sets of support frames 101 drive the two ends of the rhomboid telescopic mechanism 302 to move. The rhomboid telescopic mechanism 302 synchronously adjusts the position of the middle support frame 101, thereby realizing the equidistant adjustment between the support frames 101.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable hole spacing office paper punch, comprising a mounting frame (1), a punching device (2), and a spacing adjustment assembly (3), characterized in that: The mounting bracket (1) includes a base (4), side plates (5), and a back plate (6). The side plates (5) are fixedly connected to the two sides of the base (4), and the back plate (6) is fixedly connected between the side plates (5). The lower end of the back plate (6) is fixedly connected to the edge of the base (4). A sliding guide groove (7) is provided on the upper end of the base (4). A plurality of drilling devices (2) are slidably connected in the sliding guide groove (7). The drilling devices (2) are respectively connected to the distance adjustment component (3). The drilling device (2) includes a support frame (101). The bottom of the support frame (101) is slidably connected in the sliding guide groove (7). The adjusting assembly (3) includes a bidirectional lead screw (301), a rhomboid telescopic mechanism (302), a guide rod (303), a sliding rail (304), and a sliding block (305). The bidirectional lead screw (301) is rotatably connected between two sets of side plates (5). A sliding guide hole (306) is provided on the support frame (101), and the bidirectional lead screw (301) is slidably connected in the sliding guide hole (306). The two outermost sets of the support frames (101) are respectively provided with screw sleeves (307). The screw sleeves (307) are fixedly connected in the sliding guide hole (306), and the screw sleeves (307) are connected to the bidirectional lead screw (305). The lead screw (301) is threaded. Guide holes (308) are respectively opened on the support frame (101) on both sides of the sliding guide hole (306). A guide rod (303) is slidably connected in the guide hole (308). The two ends of the guide rod (303) are respectively fixedly connected to the side plate (5). A sliding groove (309) is opened at one end of the support frame (101). A sliding rail (304) is fixedly connected in the sliding groove (309). Two sets of sliding blocks (305) are slidably connected on the sliding rail (304). The sliding blocks (305) are respectively connected to the rhomboid telescopic mechanism (302).

2. The office paper punching machine with adjustable hole spacing according to claim 1, characterized in that: The drilling device (2) includes a support frame (101), a pressure rod (102), a support head (103), a helical spring (104), a pressure plate (105), and a processing block (106). The bottom of the support frame (101) is slidably connected in a guide groove (7). A processing port (107) is opened on one side of the support frame (101). The processing block (106) is fixedly connected to the bottom of the processing port (107). An installation hole (108) is opened on the support frame (101) above the processing port (107). A pressure rod (102) is movably connected in the installation hole (108). One end of the pressure rod (102) After being inserted into the processing port (107), it is connected to the support head (103). The support head (103) is directly below the processing block (106). The other end of the pressure rod (102) passes through the upper end of the mounting hole (108) and exits the support frame (101) and is fixedly connected to the rotating shaft sleeve (109). A helical spring (104) is sleeved on the pressure rod (102) located in the mounting hole (108). The lower end of the helical spring (104) abuts against the inner wall of the mounting hole (108), and the other end of the helical spring (104) abuts against the pressure plate (105). The pressure plate (105) is fixedly connected to the pressure rod (102).

3. The office paper punching machine with adjustable hole spacing according to claim 2, characterized in that: The support frame (101) has a pivot hole (201) at the upper end. The pivot rod (202) is rotatably connected in the pivot hole (201). The two ends of the pivot rod (202) are rotatably connected to the side plate (5). The pivot rod (202) on one side of the side plate (5) is fixedly connected to a handle (203). The pivot sleeve (109) at the top of the pressure rod (102) is rotatably connected to a linkage rod (204). The side plate (5) has a sliding groove hole (205). The two ends of the linkage rod (204) are slidably connected in the sliding groove hole (205). One side of the handle (203) is in contact with the linkage rod (204). The end of the handle (203) is fixedly connected to the operating rod (206).

4. The office paper punching machine with adjustable hole spacing according to claim 1, characterized in that: One end of the bidirectional lead screw (301) passes through the side plate (5) and is fixedly connected to the knob block (310).

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