Continuous lace punch

Abstract

The utility model belongs to office supplies technical field, concretely relates to a continuous lace puncher that cuts, including base, axle pin, tool holder, spring, cutter core group and gland, the middle part fixed mounting of base tool holder, the middle part setting of tool holder can slide cutter core group along vertical direction, cutter core group along sliding axis direction stretches into the limiting notch of tool holder, limiting notch is used for the settlement of the piece that waits for punching, a plurality of spring is arranged between cutter core group and tool holder, spring provides the reset power after punching for cutter core group, the gland is covered on the tool holder, the gland is connected through axle pin rotation with tool holder. The utility model discloses through the location block of the back side of the bracket groove surface and the plug-in location of the pre-punching position of the piece that waits for punching, cooperate the structural matching of tool body and location block, can realize the continuous accurate punching of the piece that waits for punching, effectively avoid lace dislocation, punch deviation problem, improve processing quality, at the same time, spring as the reset piece of cutter core group, can realize the quick rebound of cutter core group, improve the continuous punching efficiency greatly.

Description

Technical Field

[0001] This utility model belongs to the field of office supplies technology, specifically, it relates to a continuous lace-cutting and hole-punching device. Background Technology

[0002] In handicrafts, office document processing, and decorative design, it is often necessary to cut and punch lace on materials such as paper and cards to enhance their aesthetics and practicality. Existing lace punchers were mostly single-operation devices, requiring manual adjustment of the material position after each punch. This process is cumbersome and makes it difficult to ensure precise alignment of multiple punches, easily leading to lace misalignment and punching deviation. Although patent CN217343153U discloses a "lace puncher" that adjusts the punching spacing by setting a positioning component that can slide along the length of the base and adding a waste material collection cavity, reducing the frequency of manual adjustment and alleviating waste scattering to some extent, this improved puncher still has significant drawbacks: The reliance on manual sliding adjustment of positioning components can easily lead to positioning deviations, resulting in insufficient stability in continuous drilling accuracy. Furthermore, the use of a single spring for reset results in insufficient power and slow rebound speed, failing to meet the demands of efficient continuous processing. Additionally, the lack of an effective buffer and protection structure makes the base prone to wobbling during pressure application, affecting accuracy, causing material damage and equipment wear. The overall structure is complex and bulky, making it inconvenient to carry and store. Moreover, some equipment on the market has not yet broken through traditional limitations, either lacking a waste collection structure or falling short in terms of overall performance in terms of positioning accuracy, reset efficiency, buffer protection, and portability.

[0003] Therefore, there is an urgent need for a continuous edge-cutting punch that can achieve continuous and precise drilling, has an efficient waste collection function, is easy to operate, has a long service life, and is compact and portable, in order to solve the problems of existing equipment. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a continuous lace-cutting and punching device.

[0005] A continuous edge-cutting and punching device according to this utility model includes a base, a pivot pin, a blade holder, springs, a blade core assembly, and a pressure cap. The blade holder is fixedly installed in the middle of the base. The blade core assembly, which can slide vertically, is provided in the middle of the blade holder. The blade core assembly extends into the limiting groove of the blade holder along the sliding axis. The limiting groove is used for placing the part to be punched. Multiple springs are provided between the blade core assembly and the blade holder. The springs provide the return force of the blade core assembly after punching. The pressure cap is covered on the blade holder, and the pressure cap is rotatably connected to the blade holder through the pivot pin. The base has a stepped groove surface on the front side of the top, and multiple sets of positioning structures are equidistantly arranged on the rear side of the groove surface. Each positioning structure consists of two spaced positioning blocks, and the structure of the positioning blocks is consistent with the shape of the blade body of the blade core assembly.

[0006] In a preferred embodiment: a mounting groove is provided at the center of the top of the base, and a screw hole is provided at the bottom of the mounting groove. A screw is installed in the screw hole, and the tool holder is fixed in the mounting groove by the cooperation of the screw and the screw hole.

[0007] In a preferred embodiment: a recessed groove is provided at the center of the bottom of the support surface, and the width of the recessed groove matches the length of the blade body; a protruding handle is integrally formed at the rear end of the base, and a bottom cover groove is provided at the top of the protruding handle. Multiple retaining sleeves are fixedly arranged at the bottom of the bottom cover groove, and three retaining posts are fixedly arranged at the bottom of the bottom cover. The bottom cover is fixed on the protruding handle by the insertion of the retaining posts and the retaining sleeves.

[0008] In a preferred embodiment: a garbage cover is provided at the bottom of the base, two rotating shafts are symmetrically arranged on the rear side of the garbage cover, the garbage cover is rotatably installed in the placement groove through the rotating shafts, a locking part is provided on the front side of the garbage cover, the garbage cover is locked with the edge of the placement groove through the locking part to close the bottom of the placement groove; a plurality of foot pads are provided at the bottom of the base, the foot pads are made of elastic rubber material, and the plurality of foot pads are evenly distributed at the four corners and the middle of the bottom of the base.

[0009] In a preferred embodiment: the top of the base is also covered with a top cover, the top cover covers the outside of the blade holder and the pressure cover, the rear side of the top cover has an arc-shaped hole adapted to the pressure cover, and the inner wall of the top cover can limit the range of movement of the blade core assembly when the spring returns to its original position, so as to prevent the blade core assembly from disengaging from the blade holder.

[0010] In a preferred embodiment: the tool holder includes a tool holder body, a limiting slot, a fixing hole, a groove, a spring groove, and a limiting rod; the limiting slot is opened in the middle of the front side of the tool holder body, and mounting ears are symmetrically arranged on the left and right sides of the top of the tool holder body. The fixing hole is opened on the mounting ear, and the shaft pin passes through the fixing hole; the top of the tool holder body has the vertically penetrating groove, which communicates with the limiting slot. The groove is used to place the tool core assembly and guide it to slide directionally into the limiting slot.

[0011] In a preferred embodiment: the top of the tool holder body is provided with three spring grooves, the bottom center of the spring groove is fixedly provided with the limiting rod, and the spring is sleeved on the outside of the limiting rod and limited and placed in the spring groove.

[0012] In a preferred embodiment: the blade assembly includes a blade seat, positioning rods, a blade base plate, and blade bodies; the positioning rods are symmetrically fixedly installed on the left and right sides of the bottom of the blade seat, and the positioning rods are coaxially arranged with the limiting rods; the blade base plate is fixedly installed at the center of the bottom of the blade seat, and a plurality of blade bodies are fixedly arranged at equal intervals along the length direction on the front side of the blade base plate, and the plurality of blade bodies are fixedly connected to the blade seat, and the bottom cut of the blade body is oblique.

[0013] In a preferred embodiment: the top of the blade holder is integrally formed with an arc-shaped protrusion, which abuts against the arc-shaped inner wall of the pressure cap.

[0014] In a preferred embodiment: the cap includes a cap body and a handle, the middle part of the cap body has an arc-shaped structure, the rear end of the cap body is rotatably connected to the pivot pin, and the front end of the cap body extends to form the handle.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model achieves continuous and precise drilling of the workpiece by interlocking the positioning block on the rear side of the groove surface with the front drilling position of the workpiece to be drilled, and by matching the structure of the cutter body with the positioning block. This effectively avoids problems such as edge misalignment and drilling offset, and improves the processing quality. At the same time, the spring, as the reset component of the cutter core assembly, can achieve rapid rebound of the cutter core assembly, which greatly improves the efficiency of continuous drilling.

[0016] 2. This utility model can temporarily store the waste generated by drilling through the garbage cover at the bottom of the base, preventing the waste from scattering and reducing the amount of subsequent cleaning work. In addition, the garbage cover can be easily opened through the rotating shaft, which is convenient for regular cleaning of waste.

[0017] 3. This utility model uses elastic feet to buffer the impact of drilling, protecting the device and the part to be drilled; the top cover prevents the blade assembly from detaching from the blade holder, while also preventing external dust from entering the blade holder and extending the service life of the equipment; the anti-slip textured design of the handle of the pressure cover improves the grip stability during operation.

[0018] 4. This utility model reduces material usage and lowers costs through the bottom cover groove; the limiting groove and sinking groove further improve the positioning accuracy and ease of operation of the part to be drilled. The overall structure is compact, small in size, and easy to carry and store. Attached Figure Description

[0019] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a front sectional view of the present invention; Figure 4 This is a side sectional view of the present invention; Figure 5 This is a cross-sectional view of the top cover of this utility model; Figure 6 This is an exploded view of the present invention; Figure 7 This is a schematic diagram of the structure of the base of this utility model; Figure 8 This is a schematic diagram of the tool holder structure of this utility model; Figure 9 This is a schematic diagram of the blade assembly of this utility model.

[0020] The following are the labeling elements in the figure: Detailed Implementation

[0021] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0022] like Figures 1-9 As shown, this utility model discloses a continuous lace-cutting hole punch, including a base 1, a shaft pin 6, a knife holder 7, a spring 8, a knife core assembly 9, and a pressure cap 10. The knife holder 7 is fixedly installed in the middle of the base 1. The knife core assembly 9, which can slide vertically, is set in the middle of the knife holder 7. Three springs 8 are set between the knife core assembly 9 and the knife holder 7. The springs 8 provide the reset power of the knife core assembly 9 after punching. The pressure cap 10 is rotatably connected to the knife holder 7. The knife holder 7 and the pressure cap 10 are rotatably engaged by the shaft pin 6.

[0023] A mounting groove 15 is provided at the center of the top of the base 1. The mounting groove 15 is used for the installation and placement of the tool holder 7. A screw hole 16 is provided at the bottom of the mounting groove 15. A screw 5 is installed in the screw hole 16. The tool holder 7 is fixedly installed in the mounting groove 15 of the base 1 by the screw 5 and the screw hole 16. A stepped support surface 12 is provided on the front side of the top of the base 1. The support surface 12 facilitates the placement of the workpiece to be drilled. Multiple sets of positioning structures are provided at equal intervals on the rear side of the support surface 12. The positioning structure is composed of two positioning blocks 13 spaced apart. The positioning blocks 13 have the same structure as the tool body 94 of the tool core assembly 9. After the workpiece to be drilled for the first time, the front drilling position of the workpiece to be drilled is inserted into the positioning block 13, so that when the workpiece to be drilled is continuously drilled, the edges of the continuous drilling are aligned, and the drilling position can be accurately positioned.

[0024] A recessed groove 14 is provided at the bottom center of the support surface 12. The width of the recessed groove 14 is consistent with the length of the blade body 94. The recessed groove 14 allows the operator to quickly confirm the drilling range of the punch and ensures that the workpiece to be punched is placed within the drilling range, avoiding the workpiece from being misplaced. A protruding shank is provided at the rear end of the base 1. The protruding shank provides force support when the pressure cap 10 is pressed. A bottom cover groove 17 is provided at the top of the protruding shank. The bottom cover groove 17 can greatly reduce the amount of material used and the cost when manufacturing the protruding shank of the base 1. Three retaining cylinders are provided at the bottom of the bottom cover groove 17. A bottom cover 2 is covered on the bottom cover groove 17. Three retaining pins are provided at the bottom of the bottom cover 2. The bottom cover 2 is fixedly installed on the base 1 by the retaining pins corresponding to the retaining cylinders of the bottom cover groove 17.

[0025] The bottom of the base 1 is provided with a garbage cover 3. Two rotating shafts are provided on the rear side of the garbage cover 3. The two rotating shafts are arranged symmetrically from left to right. The garbage cover 3 is set in the placement groove 15 through the two rotating shafts. The front side of the garbage cover 3 is provided with a locking part. The garbage cover 3 closes the lower part of the placement groove 15 through the locking part, and temporarily stores and collects the waste after drilling. After the garbage cover 3 is pulled out from the lower part of the placement groove 15 through the locking part, it can be flipped around the axis of the two rotating shafts to open the placement groove 15 for cleaning. The bottom of the base 1 is provided with multiple foot pads 4 made of elastic material. The foot pads 4 can effectively relieve the pressure during drilling, ensure that the device will not be damaged due to excessive pressure when under pressure, and improve the stability of operation. The top of the base 1 is provided with an upper cover 11, which covers the tool holder 7 and the pressure cover 10. The upper cover 11 does not interfere with the movement between the tool holder 7 and the pressure cover 10. The rear side of the upper cover 11 is provided with an arc-shaped hole that allows the pressure cover 10 to rotate around the shaft pin 6, and it can prevent the tool core assembly 9 from dislodging from the slot 74 after being subjected to the deformation and restoring force of the spring 8.

[0026] The tool holder 7 includes a tool holder body 71, a limiting slot 72, a fixing hole 73, a slot 74, a spring slot 75, and a limiting rod 76. The limiting slot 72 is opened in the middle of the front side of the tool holder body 71. The limiting slot 72 is used to limit the edge of the workpiece to be drilled. The top left and right sides of the tool holder body 71 are symmetrically provided with mounting ears. The mounting ears are provided with fixing holes 73. The fixing holes 73 are used for the positioning and rotation of the shaft pin 6, thereby providing a pressure base for the pressure cover 10 to rotate around the shaft pin 6, ensuring that the pusher core assembly 9 can drill the workpiece. Continuous drilling operation; the top of the tool holder body 71 is provided with a through slot 74, which is connected to the limiting slot 72. The slot 74 allows the tool body 94 of the tool core assembly 9 to slide in a certain direction, and allows the tool body 94 to pass into the limiting slot 72 to drill the workpiece; the top of the tool holder body 71 is provided with three spring slots 75. A limiting rod 76 is fixedly installed at the bottom center of the spring slot 75. The spring 8 is limited and placed in the spring slot 75, and the limiting rod 76 acts as an axial limiting member when the spring 8 undergoes elastic deformation.

[0027] The core assembly 9 includes a core seat 91, positioning rods 92, a core base plate 93, and blades 94. The top of the core seat 91 extends into an arc-shaped protrusion, which abuts against the arc-shaped inner wall of the pressure cap 10. By rotating the pressure cap 10 around the shaft pin 6, the core assembly 9 is pressed to slide and drill along the axial direction of the slot 74. Two positioning rods 92 are fixedly installed at the bottom of the core seat 91. The positioning rods 92 are correspondingly set with the limit rods 76. The positioning rods 92 are used for axial positioning of the spring 8. The core base plate 93 is fixedly installed at the center of the bottom of the core seat 91. Multiple blades 94 are equidistantly arranged on the front side of the core base plate 93. The blades 94 are fixedly connected to the core seat 91. The bottom cut of the blades 94 is oblique, which facilitates drilling and saves effort.

[0028] The cap 10 includes a cap body and a handle. The middle part of the cap body has an arc-shaped structure. The rear end of the cap body is rotatably connected to the shaft pin 6. The front end of the cap body extends to form the handle.

[0029] Working principle When using this utility model, the part to be drilled is placed on the groove surface 12 of the base 1, so that the edge of the part to be drilled abuts against the limiting groove 72 of the tool holder 7, while ensuring that the front end of the part to be drilled covers the recessed groove 14, and the drilling range is initially determined. Subsequently, the handle of the pressure cover 10 is pressed down, and the pressure cover 10 rotates downward around the shaft pin 6. Its arc-shaped inner wall presses against the arc-shaped protrusion of the blade core seat 91, pushing the blade core assembly 9 to slide downward along the slot 74 of the blade seat 7. The blade body 94 at the bottom of the blade core assembly 9 performs lace cutting and drilling operations on the workpiece to be drilled. During this process, the positioning rod 92 at the bottom of the blade core seat 91 compresses the spring 8 downward, and the spring 8 undergoes elastic deformation and stores reset potential energy. After drilling is completed, release the handle of the pressure cap 10. The spring 8 releases the stored potential energy and pushes the core seat 91 to drive the blade body 94 to return to its original position along the slot 74 until the top of the core seat 91 abuts against the inner wall of the upper cover 11, thus completing one drilling operation. When performing continuous drilling, move the part to be drilled backward so that the lace hole formed by the previous drilling is inserted and positioned with the positioning block 13 on the back side of the bracket surface 12. Repeat the above steps of pressing the cover 10 to achieve continuous and precise lace drilling. Waste generated during the drilling process falls into the placement groove 15 of the base 1 through the slot 74 of the cutter holder 7 and is temporarily stored by the waste cover 3. When the waste accumulates to a certain amount, the locking part of the waste cover 3 is pulled outward, so that the waste cover 3 rotates downward around the rotating axis to open, and the waste can be dumped and cleaned. After cleaning, the waste cover 3 is rotated upward so that its locking part engages with the edge of the placement groove 15 and is resealed.

[0030] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A continuous lace-cutting hole punch, characterized in that, The device includes a base (1), a pivot pin (6), a tool holder (7), a spring (8), a tool core assembly (9), and a pressure cap (10). The tool holder (7) is fixedly installed in the middle of the base (1). The tool core assembly (9) is provided in the middle of the tool holder (7) and can slide in the vertical direction. The tool core assembly (9) extends into the limiting slot (72) of the tool holder (7) along the sliding axis. The limiting slot (72) is used for placing the part to be drilled. Multiple springs (8) are provided between the tool core assembly (9) and the tool holder (7). The springs (8) provide the tool core assembly (9) with the reset power after drilling. The pressure cap (10) is covered on the tool holder (7). The pressure cap (10) is rotatably connected to the tool holder (7) through the pivot pin (6). The base (1) has a stepped support surface (12) on the front side of the top. Multiple positioning structures are equidistantly arranged on the rear side of the support surface (12). The positioning structure consists of two spaced positioning blocks (13). The structure of the positioning block (13) is consistent with the shape of the blade body (94) of the blade core assembly (9).

2. The continuous lace-cutting and punching device according to claim 1, characterized in that, The base (1) has a mounting groove (15) at the top center and a screw hole (16) at the bottom of the mounting groove (15). A screw (5) is installed in the screw hole (16). The tool holder (7) is fixed in the mounting groove (15) by the cooperation of the screw (5) and the screw hole (16).

3. The continuous lace-cutting and punching device according to claim 2, characterized in that, The bottom center of the support surface (12) is provided with a recessed groove (14), the width of the recessed groove (14) is matched with the length of the blade body (94); the rear end of the base (1) is integrally formed with a protruding handle, the top of the protruding handle is provided with a bottom cover groove (17), the bottom of the bottom cover groove (17) is fixedly provided with multiple clamping cylinders, the bottom of the bottom cover (2) is correspondingly fixedly provided with three clamping pins, and the bottom cover (2) is fixed on the protruding handle by the insertion of the clamping pins and the clamping cylinders.

4. The continuous lace-cutting and punching device according to claim 2, characterized in that, The base (1) is provided with a garbage cover (3) at the bottom. Two rotating shafts are symmetrically arranged on the rear side of the garbage cover (3). The garbage cover (3) is rotatably installed in the placement groove (15) through the rotating shafts. The front side of the garbage cover (3) is provided with a locking part. The garbage cover (3) is locked with the edge of the placement groove (15) through the locking part to close the bottom of the placement groove (15). The base (1) is provided with multiple foot pads (4) at the bottom. The foot pads (4) are made of elastic rubber material. The multiple foot pads (4) are evenly distributed at the four corners and the middle of the bottom of the base (1).

5. The continuous lace-cutting and punching device according to claim 1, characterized in that, The base (1) is also covered with a top cover (11), which covers the outside of the knife holder (7) and the pressure cover (10). The rear side of the top cover (11) is provided with an arc-shaped hole that matches the pressure cover (10). The inner wall of the top cover (11) can limit the range of movement of the knife core assembly (9) when the spring (8) is reset, preventing the knife core assembly (9) from dislodging from the knife holder (7).

6. The continuous lace-cutting and punching device according to claim 1, characterized in that, The tool holder (7) includes a tool holder body (71), a limiting slot (72), a fixing hole (73), a slot (74), a spring slot (75), and a limiting rod (76). The limiting slot (72) is opened in the middle of the front side of the tool holder body (71). The tool holder body (71) has mounting ears symmetrically arranged on the left and right sides of the top. The mounting ears have the fixing hole (73) opened on them. The shaft pin (6) passes through the fixing hole (73). The top of the tool holder body (71) has the slot (74) that runs vertically through it. The slot (74) communicates with the limiting slot (72). The slot (74) is used to place the tool core assembly (9) and guide it to slide into the limiting slot (72).

7. The continuous lace-cutting and punching device according to claim 6, characterized in that, The top of the tool holder body (71) is provided with three spring grooves (75), and the limiting rod (76) is fixedly provided at the center of the bottom of the spring groove (75). The spring (8) is sleeved on the outside of the limiting rod (76) and limited and placed in the spring groove (75).

8. The continuous lace-cutting and punching device according to claim 6, characterized in that, The blade assembly (9) includes a blade seat (91), a positioning rod (92), a blade base plate (93), and blades (94). The positioning rod (92) is symmetrically fixed on the left and right sides of the bottom of the blade seat (91), and the positioning rod (92) is coaxially arranged with the limiting rod (76). The blade base plate (93) is fixedly installed in the center of the bottom of the blade seat (91), and multiple blades (94) are fixedly arranged at equal intervals along the length direction on the front side of the blade base plate (93). The multiple blades (94) are fixedly connected to the blade seat (91), and the bottom cut of the blade (94) is oblique.

9. The continuous lace-cutting and punching device according to claim 8, characterized in that, The top of the blade holder (91) is integrally formed with an arc-shaped protrusion, which abuts against the arc-shaped inner wall of the pressure cap (10).

10. The continuous lace-cutting and punching device according to claim 1, characterized in that, The pressure cap (10) includes a pressure cap body and a hand-held part. The middle part of the pressure cap body has an arc-shaped structure. The rear end of the pressure cap body is rotatably connected to the shaft pin (6). The front end of the pressure cap body extends to form the hand-held part.

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