A curtain punching machine

Abstract

A curtain hole punching machine of the present invention comprises a box body, a driving motor, a workbench plate, a cutter assembly, a support arm, a downward pressing mechanism and a downward pressing driving mechanism; the cutter assembly comprises a main shaft and a rotary cutter, the upper end of the main shaft is connected with the rotary cutter, and the lower end is connected with the driving motor; the downward pressing mechanism comprises a downward pressing slide bar, a downward pressing cross bar, a return spring and a downward pressing arm, a guiding cross bar is connected to the middle of the downward pressing bar, the support arm is provided with a guiding vertical groove, the downward pressing slide bar passes through the support arm, the guiding cross bar is positioned in the guiding vertical groove, a pressing disc is connected with the downward pressing slide bar and is located above the cutter hole; the downward pressing arm is provided with a guiding groove, and the guiding cross bar is positioned in the guiding groove. The curtain hole punching machine of the present invention can not only effectively improve the work efficiency, but also make the cut circular holes have beautiful shapes, the distances between the circular holes are the same, and the quality of the finished curtain is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of curtain processing, and relates to a punching device for curtain loop holes, in particular to a curtain loop hole punching machine. Background Art

[0002] When processing curtains, it is usually necessary to first punch loop holes in the curtain fabric, and then press Roman rings on the curtain fabric with punched loop holes to make finished curtains. For a long time, punching holes in curtain fabric has been manually operated with scissors. First, the opening size and size are calculated on the curtain fabric, then a circle is drawn at the corresponding position of the opening, the lower half circle is cut after folding in half, and the round hole is obtained after unfolding. This method is cumbersome to operate, has low work efficiency, and is also prone to quality problems such as individual centers not being on the same straight line and being uneven and irregular.

[0003] With the development of technology, some hand-pressed curtain punching machines have emerged on the market. Due to design defects, these hand-pressed curtain punching machines generally have problems such as complex structure, troublesome maintenance, laborious operation, and low punching accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide a curtain punching machine, which can not only effectively improve work efficiency, but also has beautiful formed loop holes cut, the same distance between loop holes, and the quality of finished curtains is guaranteed, effectively solving the problems existing in the above background art.

[0005] The technical solution adopted by the present invention to achieve the above object is as follows: A curtain punching machine includes a box body, a driving motor, a workbench plate, a cutter assembly, a support arm, a downward pressing mechanism and a downward pressing driving mechanism; the driving motor is positioned in the box body, the support arm is of a hollow structure, the support arm includes a column and a cantilever vertically connected to the upper end of the column, and the lower end of the column is connected to the upper end surface of the box body; the workbench plate is positioned between the cantilever and the upper end surface of the box body through at least two buffer components, and a cutter hole penetrating the upper and lower end surfaces thereof is formed on the workbench plate; the buffer component includes a guide rod, a buffer spring and a guide sleeve, the guide rods are respectively connected to the lower end surface of the workbench plate, the buffer spring is sleeved outside the guide rod, and the guide sleeves are respectively connected to the upper end surface of the box body and cooperate with the corresponding guide rods; the cutter assembly includes a main shaft and a cylindrical rotary cutter, the upper end opening of the rotary cutter is a cutting edge, and the lower end of the rotary cutter is connected to the upper end of the main shaft; a positioning taper hole coaxial with the rotary cutter is provided on the lower end surface of the rotary cutter, a conical boss corresponding to the positioning taper hole is provided at the upper end of the main shaft, and the conical boss is coaxial with the main shaft; the upper end of the main shaft is connected to the rotary cutter through a multi-start thread, and the conical boss cooperates with the positioning taper hole; the lower end of the main shaft extends into the box body and is connected to the box body through a bearing I, and the rotary cutter connected to the upper end of the main shaft is located in the cutter hole of the workbench plate; the lower end of the main shaft is connected to the driving motor through a worm and gear assembly, the driving worm of the worm and gear assembly is connected to the output shaft of the driving motor, the driving gear of the worm and gear assembly is connected to the outside of the main shaft near the lower end, and the driving worm meshes with the driving gear; guide vertical grooves, a first guide chute and a second guide chute are symmetrically formed on the side walls on both sides of the cantilever, the guide vertical grooves are arranged in the vertical direction, the first guide chute and the second guide chute are respectively arranged on both sides of the guide vertical groove, the first guide chute is arc-shaped, and it gradually moves away from the guide vertical groove and then gradually approaches the guide vertical groove from top to bottom; the second guide chute is arranged obliquely from top to bottom, and the lower end of the second guide chute gradually approaches the lower end of the guide vertical groove; the downward pressing mechanism includes a downward pressing slide rod, a downward pressing cross rod, a return spring and two downward pressing arms, the downward pressing slide rod is slidably positioned in the cavity of the cantilever in the vertical direction, and both ends of the downward pressing slide rod respectively penetrate the upper and lower end surfaces of the cantilever, and a pressure plate is further connected to the lower end of the downward pressing slide rod; the downward pressing cross rod is vertically connected to the middle of the downward pressing slide rod, and both ends of the downward pressing cross rod are respectively positioned in the guide vertical grooves and extend to the outside of the cantilever; the return spring is sleeved outside the downward pressing slide rod and is located between the downward pressing cross rod and the inner wall of the bottom of the cantilever; a downward pressing chute is formed in the middle of the downward pressing arm, the two downward pressing arms are symmetrically arranged on the outside of the cantilever respectively, and both ends of the two downward pressing arms are connected to each other through a first rotating shaft and a second rotating shaft respectively, the first rotating shaft is slidably positioned in the first guide chute, the second rotating shaft is slidably positioned in the second guide chute, and both ends of the downward pressing cross rod are slidably positioned in the downward pressing chutes of the corresponding downward pressing arms respectively; the middle of the first rotating shaft is connected to the downward pressing driving mechanism;Rolling bearings are provided at the sliding connection between the outer side of the first rotating shaft and the first guide slide groove, the sliding connection between the outer side of the second rotating shaft and the second guide slide groove, and the sliding connection between the outer side of the pressing cross bar and the pressing slide groove; during operation, the curtain cloth is positioned on the workbench, the hole to be opened of the curtain cloth is located in the cutter hole, the first rotating shaft is driven downward by the pressing drive mechanism, the pressing cross bar moves downward along the guide vertical groove under the lever action of the pressing arm, thereby driving the pressing slide bar and the pressure plate to move downward, the pressure plate presses the curtain cloth against the workbench, as the pressing slide bar and the pressure plate continue to press the workbench downward, the rotating cutter contacts the curtain cloth and cuts the curtain ring hole. ;

[0006] A further technical solution of the present invention is: the box body comprises a box bottom, a box cover, two first side panels respectively connected to the front and rear sides of the box bottom, and two second side panels respectively connected to the left and right sides of the box bottom, the two first side panels and the two second side panels enclose the box body; the four sides of the second side panels are respectively bent to have flanges perpendicular to the second side panels, and the front and rear flanges located on the front and rear sides are respectively provided with at least 3 side panel limiting grooves inclined downward, and the upper flanges and the lower flanges located on the upper and lower sides are respectively provided with at least 3 internal threaded connection holes I; the The left and right sides of the first side panel are respectively provided with side panel limit pins corresponding to the side panel limit grooves, the bottom edge of the first side panel is also provided with two connecting ears for connecting with the box bottom, and the middle part of the connecting ears is provided with an internal thread connection hole II, and the top of the first side panel is protruding with two box cover limit bosses; the lower side surface of the box cover is concavely provided with a limit groove matching the box cover limit boss at a position corresponding to the box cover limit boss; the two second side panels are respectively positioned on the upper sides of the left and right sides of the box bottom, and are connected to the internal thread of the lower flange of the second side panel after passing through the bottom surface of the box bottom through the first connecting screw. The two first side panels are respectively positioned on the upper sides of the front and rear sides of the box bottom, and the first connecting screws pass through the bottom of the box bottom from the bottom surface of the box bottom and then cooperate with the internal threaded connecting holes II of the connecting ears of the first side panels, so that the first side panels are respectively connected to the upper sides of the box bottom; the side edges of the first side panels are connected to the side edges of the adjacent second side panels, and the side panel limiting pins of the first side panels are positioned at the bottom of the side panel limiting grooves of the front and rear flanges of the second side panels; the box cover is positioned on the tops of the first and second side panels, and the first side panels The limiting boss of the box cover is positioned in the limiting groove of the box cover, and the second connecting screw passes through the upper end face of the box cover and then cooperates with the internal threaded connecting hole I of the upper flange of the second side panel, so that the box cover is connected to the second side panel, so that the box bottom, the box cover, the first side panel and the second side panel are enclosed to form a closed box structure; a limiting hole is provided on the side of the side panel limiting pin of the first side panel, and after the side panel limiting pin is positioned at the bottom of the side panel limiting groove, the protrusion at the upper end of the opening of the side panel limiting groove is positioned in the limiting hole; rubber pads are also connected to the four corners of the bottom of the box bottom.

[0007] A further technical solution of the present invention is as follows: A hole pitch regulator is further provided on the workbench plate. A strip-shaped groove for positioning the hole pitch regulator is formed in the workbench plate on the side of the cutter hole. A rack is connected to the inner side wall of the strip-shaped groove, and a guide groove penetrating the workbench plate is formed at the bottom of the strip-shaped groove; The hole pitch regulator includes an adjusting handwheel, a movable positioning block, a connecting bolt, a pressing spring and a wing nut. A gear is connected to the lower end of the adjusting handwheel. The movable positioning block includes a positioning cone and a guide block connected to the lower end of the positioning cone. The guide block is positioned in the strip-shaped groove, and the positioning cone is located on the upper end surface of the workbench plate. A through hole for positioning the adjusting handwheel is formed through the middle of the positioning cone and the guide block. The adjusting handwheel is positioned in the through hole, and the gear at the lower end of the adjusting handwheel meshes with the rack. The connecting bolt passes through the adjusting handwheel and the guide groove, and the lower end of the connecting bolt extends to the lower side of the workbench plate. The pressing spring is sleeved on the outer side of the connecting bolt extending to the lower side of the workbench plate. The wing nut is connected to the connecting bolt and presses against the pressing spring; A scale mark parallel to the strip-shaped groove is further provided on the upper end surface of the workbench plate on the side of the strip-shaped groove. A scale pointer is convexly provided on one side of the circumferential outer side of the bottom of the positioning cone close to the scale mark.

[0008] Another technical solution of the present invention is as follows: A marking component and a laser positioning component are connected to the upper side edge of the workbench plate, and the marking component and the laser positioning component are respectively located on both sides of the column. The marking component includes a first base, a cover plate, a turbine, a worm, a marking driving motor, a rotating shaft, a swing arm and a marking pen. The first base is connected to the position of the upper side edge of the workbench plate close to the left end. The turbine is positioned on the first base through the rotating shaft. The marking driving motor is fixedly connected to the first base. The worm is connected to the output shaft of the marking driving motor and meshes with the turbine. The cover plate covers the upper sides of the turbine, the worm, the rotating shaft and the marking driving motor and is connected to the first base. The lower end of the swing arm is fixedly connected to one end of the rotating shaft and can rotate synchronously. A marking pen is connected to the upper end of the swing arm. A marking hole is provided at the position of the workbench plate corresponding to the marking pen; The laser positioning component includes a second base, a linear slide table component, a handwheel and a laser emitter. The second base is connected to the position of the upper side edge of the workbench plate close to the right end. The linear slide table component is positioned on the second base. The handwheel is connected to the end of the ball screw of the linear slide table component. The laser emitter is positioned on the slide of the linear slide table component. A scale mark is further provided on the upper side surface of the workbench plate corresponding to the laser positioning component. The beam emitted by the laser emitter irradiates on the scale mark.

[0009] A further technical solution of the present invention is that a torque clutch is also connected between the turbine and the rotating shaft. The torque clutch includes a first friction plate, a second friction plate, a pressing plate and a pressing spring. The pressing spring, the pressing plate, the first friction plate, the second friction plate and the turbine are sequentially coaxially arranged on the rotating shaft. An outer side of the connection between the rotating shaft and the first friction plate is provided with a first limiting plane, and a second limiting plane corresponding to the first limiting plane is provided in the mounting hole of the first friction plate. The first friction plate is fixedly connected to and rotates synchronously with the rotating shaft through the cooperation of the first limiting plane and the second limiting plane; the pressing plate, the second friction plate and the turbine are respectively rotatably connected to the rotating shaft. At least three limiting blocks are protruded from the circumferential outer edge of the second friction plate. A positioning boss for accommodating the torque clutch is provided on the side surface of the turbine, and a clamping groove corresponding to the limiting block is provided on the positioning boss. The first friction plate, the second friction plate and the pressing plate are respectively positioned in the inner cavity of the positioning boss, and the limiting blocks of the second friction plate are positioned in the clamping grooves of the positioning boss. The second friction plate is fixedly connected to and can rotate synchronously with the turbine through the cooperation of the limiting block and the clamping groove; one end of the pressing spring abuts against the step of the rotating shaft, and the other end of the pressing spring abuts against the outer side of the pressing plate; a cam is also fixedly connected to the rotating shaft. The cam is coaxially arranged with the rotating shaft and can rotate synchronously, and a limiting convex block is provided on the outer edge of the cam. A rotating shaft limiting convex platform is provided at a position of the first base corresponding to the cam. When the rotating shaft drives the swing arm to rotate to the highest position, the limiting convex block abuts against the rotating shaft limiting convex platform.

[0010] A further technical solution of the present invention is that the upper surface of the workbench plate on the circumferential outer side of the cutter hole is provided with anti-slip lines; a top distance adjusting baffle is also connected to the workbench plate above the cutter hole. A plurality of grooves cooperating with the top distance adjusting baffle are provided on the workbench plate, and size marks are arranged between adjacent grooves. The top distance adjusting baffle is positioned in the grooves.

[0011] A further technical solution of the present invention is that the pressure plate includes a pressing plate and a brush. The lower end of the lower pressing slide rod is provided with an external thread. A through hole for connecting with the lower pressing slide rod is provided on the upper end surface of the pressing plate. A cutter groove is recessed upward on the lower end surface of the pressing plate; the brush includes a brush plate and bristles uniformly connected to the brush plate. A threaded hole cooperating with the external thread of the lower pressing slide rod is provided in the middle of the brush plate. At least one limiting strip is protruded from the circumferential outer side of the brush plate. A limiting groove corresponding to the limiting strip is opened on the inner side wall of the cutter groove. The brush plate is positioned in the cutter groove, and the limiting strip is positioned in the corresponding limiting groove. The external thread of the lower pressing slide rod passes through the through hole of the pressing plate and is connected to the threaded hole of the brush plate, so as to fix the brush in the cutter groove; a sponge layer is also connected to the lower end surface of the pressing plate.

[0012] A further technical solution of the present invention is that a travel switch electrically connected to the driving motor is further provided at a position on the side wall of the cantilever corresponding to the downward pressing arm; when the downward pressing slide bar and the pressing plate press the curtain fabric down to contact the rotary cutter, the downward pressing arm presses against the pressing rod piece of the travel switch, and the travel switch is in a conducting state.

[0013] A further technical solution of the present invention is that the downward pressing driving mechanism is a manual downward pressing mechanism, including a downward pressing handle, a driving rotating shaft, a first linkage rod and a second linkage rod. The driving rotating shaft horizontally passes through the side wall of the cantilever, and the downward pressing handle is vertically connected to one end of the driving rotating shaft. One end of the first linkage rod is fixedly connected to the driving rotating shaft, the end of the first linkage rod far from the driving rotating shaft is hinged to the second linkage rod, and the end of the second linkage rod far from the first linkage rod is hinged to the middle of the first rotating shaft; pressing the downward pressing handle can drive the driving rotating shaft to rotate, and the driving rotating shaft drives the first rotating shaft to move downward through the first linkage rod and the second linkage rod.

[0014] A further technical solution of the present invention is that the downward pressing driving mechanism is a foot-operated downward pressing mechanism, including a foot-operated device, a cable assembly and a roller. The roller is positioned in the inner cavity of the support arm through a positioning rotating shaft, and the roller is located below the side of the first guiding chute far from the guiding vertical chute; one end of the cable assembly is connected to the foot-operated device, the cable sheath at the end of the cable assembly far from the foot-operated device is fixedly connected to the side wall of the column, and the cable core at the end of the cable assembly far from the foot-operated device bypasses the lower side of the roller and extends upward and then is connected to the middle of the first rotating shaft. Pulling the cable core by the foot-operated device can drive the first rotating shaft to move downward.

[0015] Since the curtain hole punching machine of the present invention adopts the above scheme, it has the following beneficial effects:

[0016] 1. When the curtain hole punching machine of the present invention works, the curtain fabric is positioned on the workbench board, and the position to be punched of the curtain fabric is located in the cutter hole. The downward pressing driving mechanism drives the downward pressing arm to move downward. Under the lever action of the downward pressing arm, the guiding cross bar moves downward along the guiding vertical chute, thereby driving the downward pressing slide bar and the pressing plate to move downward. The pressing plate presses the curtain fabric tightly on the workbench board. As the downward pressing slide bar and the pressing plate continue to press the workbench board downward, the rotary cutter contacts the curtain fabric, and the curtain loop hole cutting operation is completed; using the curtain hole punching machine of the present invention to perform loop hole punching on the curtain fabric can not only effectively improve the work efficiency, but also the cut loop holes are beautifully formed, the distances between the loop holes are the same, and the quality of the curtain finished product is guaranteed;

[0017] 2. The downward pressing driving mechanism of the present invention can be a manual downward pressing mechanism or a foot-operated downward pressing mechanism. It can drive the downward pressing slide bar and the pressing plate to move downward either by the downward pressing handle or by the foot pedal, and can be selected according to the needs of different operators, with strong practicability and wide application range;

[0018] 3. The downward pressing mechanism of the present invention is ingeniously designed. When the first rotating shaft drives the downward pressing arm to move downward along the first guiding chute, the other end of the downward pressing arm rotates around the second rotating shaft. The downward pressing cross bar positioned in the downward pressing chute moves downward along the guiding vertical chute under the lever action of the downward pressing arm, thereby driving the downward pressing slide bar and the pressing plate to move downward; during the process of the first rotating shaft moving downward along the first guiding chute, the first rotating shaft gradually moves away from the downward pressing cross bar, while the second rotating shaft slides downward along the second guiding chute to the side of the downward pressing cross bar. That is to say, during this process, the lever ratio of the downward pressing arm increases sharply. Therefore, the force required for the downward pressing driving mechanism to drive the downward pressing slide bar and the pressing plate downward gradually decreases, which can effectively reduce the labor intensity of the operating workers; in addition, by arranging rolling bearings at the sliding connection positions of the first rotating shaft, the second rotating shaft and the downward pressing cross bar, the starting is smooth and the resistance is small during the relative movement of each sliding component, and it is more labor-saving when operating the equipment;

[0019] 4. The main shaft of the present invention is connected to the rotary cutter through a multi-start thread. Due to the special structure of the multi-start thread, when the rotary cutter rotates at a high speed, the thread connection between it and the main shaft will not become tighter and tighter, thereby reducing the locking strength between the rotary cutter and the main shaft, so as to facilitate the disassembly of the rotary cutter; in addition, the main shaft is connected to the driving motor through a worm and worm gear assembly. Since the worm and worm gear assembly has a self-locking effect, when replacing the rotary cutter, there is no need to use additional tools to fix the main shaft. Under the self-locking action of the worm and worm gear assembly, only by twisting the rotary cutter by hand, the rotary cutter can be removed from the main shaft; at the same time, the main shaft and the rotary cutter are connected by the cooperation of a conical boss and a positioning conical hole, which can effectively improve the coaxiality between the two, ensure the quality of the finished curtain product, and at the same time extend the service life of the rotary cutter;

[0020] 5. The pressing plate of the present invention adopts a split structure. By arranging a detachable annular brush in the pressing plate, it provides effective support for the curtain fabric, avoiding defects such as cutting wire connection, loose ends, and incomplete cutting caused by the backward displacement of the curtain fabric during cutting, and effectively improving the forming effect of the curtain loop holes; in addition, the annular brush rotates and is positioned in the limiting groove through the connecting block, so as to be connected and positioned in the cutter groove with the pressing plate. When the annular brush is damaged, only the annular brush needs to be replaced separately, and the disassembly and replacement are convenient;

[0021] 6. The present invention installs a travel switch electrically connected to the driving motor at the position of the side wall of the cantilever corresponding to the downward pressing arm. Through the travel switch, the rotary cutter is in a stopped state when not cutting the curtain loop holes, and rotates to cut the curtain loop holes only when the curtain fabric contacts the rotary cutter. This not only increases the use safety of the equipment but also reduces the energy consumption.

[0022] The following further describes a curtain hole punching machine of the present invention with reference to the drawings and embodiments. Brief Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of a curtain hole punching machine according to the present invention;

[0024] Figure 2 is a schematic structural diagram of another direction of the present invention;

[0025] Figure 3 is Figure 1 the front view of;

[0026] Figure 4 is a schematic internal structure diagram of the box body;

[0027] Figure 5 is a schematic structural diagram of the support arm and the pressing mechanism;

[0028] Figure 6 is Figure 5 a schematic structural diagram of another direction;

[0029] Figure 7 is Figure 5 the side view of;

[0030] Figure 8 is a schematic structural diagram of the support arm;

[0031] Figure 9 is Figure 7 the schematic internal structure diagram of;

[0032] Figure 10 is a schematic structural diagram of another embodiment of the present invention;

[0033] Figure 11 is Figure 10 the schematic internal structure diagram of;

[0034] Figure 12 is a schematic structural diagram when the pressing slide rod is pressed to the bottom end;

[0035] Figure 13 is a schematic structural diagram of the cutter assembly;

[0036] Figure 14 is an exploded view of the cutter assembly;

[0037] Figure 15 is an exploded structural schematic diagram of the box body;

[0038] Figure 16 is a schematic overall structure diagram of the box body;

[0039] Figure 17 is a schematic structural diagram of the first side plate;

[0040] Figure 18 is Figure 17Enlarged view of the position A shown

[0041] Figure 19 It is a schematic structural diagram of the second side plate;

[0042] Figure 20 It is a schematic structural diagram of the connection of the first side plate, the second side plate and the bottom of the box;

[0043] Figure 21 It is Figure 20 Enlarged view of the position B shown;

[0044] Figure 22 It is a schematic structural diagram of the first implementation of the workbench board;

[0045] Figure 23 It is Figure 22 Exploded view of the workbench board in;

[0046] Figure 24 It is Figure 22 Front view of the workbench board in;

[0047] Figure 25 It is Figure 22 Side view of the workbench board in;

[0048] Figure 26 It is Figure 22 Schematic structural diagram of the workbench board installed on the whole machine in;

[0049] Figure 27 It is a schematic structural diagram of the second implementation of the workbench board;

[0050] Figure 28 It is Figure 27 Schematic structural diagram of the workbench board in another direction in;

[0051] Figure 29 It is a schematic structural diagram of the laser positioning component;

[0052] Figure 30 It is a schematic structural diagram of the marking component;

[0053] Figure 31 It is a schematic internal structure diagram of the marking component;

[0054] Figure 32 It is an exploded view of the turbine connected to the rotating shaft through the torque clutch;

[0055] Figure 33 It is a side view of the rotating shaft;

[0056] Figure 34 It is a side view of the first friction plate;

[0057] Figure 35 It is a side view of the second friction plate;

[0058] Figure 36 is Figure 31 The structural schematic diagrams of the turbine, worm, torque clutch and drive motor are omitted;

[0059] Figure 37 is the structural schematic diagram of the pressure plate;

[0060] Figure 38 is the exploded view of the pressure plate;

[0061] Figure 39 is the exploded view of the pressure plate in another direction. Specific embodiments

[0062] As Figures 1 to 39 shown, a curtain hole punching machine of the present invention includes a box body 1, a drive motor 10, a workbench plate 3, a cutter assembly 2, a support arm 6, a downward pressing mechanism 5 and a downward pressing drive mechanism; the drive motor 10 is positioned in the box body 1, the support arm 6 is of a hollow structure, the support arm 6 includes a column 6-1 and a cantilever 6-2 vertically connected to the upper end of the column 6-1, and the lower end of the column 6-1 is connected to the upper end surface of the box body 1; the workbench plate 3 is positioned between the cantilever 6-2 and the upper end surface of the box body 1 through at least two buffer assemblies 8, and a cutter hole 3-1 penetrating the upper and lower end surfaces is formed on the workbench plate 3; the buffer assembly 8 includes a guide rod 8-1, a buffer spring 8-2 and a guide sleeve 8-3, the guide rods 8-1 are respectively connected to the lower end surface of the workbench plate 3, the buffer spring 8-2 is sleeved outside the guide rod 8-1, and the guide sleeves 8-3 are respectively connected to the upper end surface of the box body 1 and cooperate with the corresponding guide rods 8-1; the cutter assembly 2 includes a main shaft 2-2 and a cylindrical rotary cutter 2-1, the upper end opening of the rotary cutter 2-1 is a cutting edge 2-1-1, and the lower end of the rotary cutter 2-1 is connected to the upper end of the main shaft 2-2; a positioning tapered hole 2-1-2 coaxial with the rotary cutter 2-1 is provided on the lower end surface of the rotary cutter 2-1, a tapered boss 2-2-2 corresponding to the positioning tapered hole 2-1-2 is provided at the upper end of the main shaft 2-2, and the tapered boss 2-2-2 is coaxial with the main shaft 2-2; the upper end of the main shaft 2-2 is connected to the rotary cutter 2-1 through a multi-start thread 2-2-1, and the tapered boss 2-2-2 cooperates with the positioning tapered hole 2-1-2; the lower end of the main shaft 2-2 extends into the box body 1 and is connected to the box body 1 through a bearing I 2-3, and the rotary cutter 2-1 connected to the upper end of the main shaft 2-2 is located in the cutter hole 3-1 of the workbench plate 3; the lower end of the main shaft 2-2 is connected to the drive motor 10 through a turbine and worm assembly, the driving worm 2-5 of the turbine and worm assembly is connected to the output shaft of the drive motor 10, the driving turbine 2-4 of the turbine and worm assembly is connected to the outside of the main shaft 2-2 near the lower end, and the driving worm 2-5 meshes with the driving turbine 2-4, so as to drive the rotary cutter 2-1 to rotate through the drive motor 10.

[0063] In the present invention, guiding vertical grooves 6-2-1, first guiding sliding grooves 6-2-3 and second guiding sliding grooves 6-2-2 are symmetrically formed on the side walls on both sides of the cantilever 6-2. The guiding vertical grooves 6-2-1 are arranged in the vertical direction. The first guiding sliding grooves 6-2-3 and the second guiding sliding grooves 6-2-2 are respectively arranged on both sides of the guiding vertical grooves 6-2-1. The first guiding sliding grooves 6-2-3 are arc-shaped, and gradually move away from the guiding vertical grooves 6-2-1 from top to bottom and then gradually approach the guiding vertical grooves 6-2-1. The second guiding sliding grooves 6-2-2 are arranged obliquely from top to bottom, and the lower ends of the second guiding sliding grooves 6-2-2 gradually approach the lower ends of the guiding vertical grooves 6-2-1. The pressing mechanism 5 includes a pressing slide bar 5-1, a pressing cross bar 5-2, a return spring 5-6 and two pressing arms 5-3. The pressing slide bar 5-1 is slidably positioned in the cavity of the cantilever 6-2 in the vertical direction, and both ends of the pressing slide bar 5-1 respectively pass through the upper and lower end faces of the cantilever 6-2. A pressing disc 7 is further connected to the lower end of the pressing slide bar 5-1. The pressing cross bar 5-2 is vertically connected to the middle of the pressing slide bar 5-1, and both ends of the pressing cross bar 5-2 are respectively positioned in the guiding vertical grooves 6-2-1 and extend to the outside of the cantilever 6-2. The return spring 5-6 is sleeved outside the pressing slide bar 5-1 and is located between the pressing cross bar 5-2 and the inner wall of the bottom of the cantilever 6-2. A pressing sliding groove 5-3-1 is formed in the middle of the pressing arm 5-3. The two pressing arms 5-3 are symmetrically arranged on the outside of the cantilever 6-2, and both ends of the two pressing arms 5-3 are respectively connected to each other through a first rotating shaft 5-5 and a second rotating shaft 5-4. The first rotating shaft 5-5 is slidably positioned in the first guiding sliding groove 6-2-3, the second rotating shaft 5-4 is slidably positioned in the second guiding sliding groove 6-2-2, and both ends of the pressing cross bar 5-2 are respectively slidably positioned in the pressing sliding grooves 5-3-1 of the corresponding pressing arms 5-3. The middle of the first rotating shaft 5-5 is connected to the pressing driving mechanism. Rolling bearings 11 are respectively arranged at the sliding connection between the outside of the first rotating shaft 5-5 and the first guiding sliding groove 6-2-3, the sliding connection between the outside of the second rotating shaft 5-4 and the second guiding sliding groove 6-2-2, and the sliding connection between the outside of the pressing cross bar 5-2 and the pressing sliding groove 5-3-1.When the downward pressing driving mechanism drives the first rotating shaft 5-5 to move downward, in the early stage of the downward movement of the first rotating shaft 5-5, the downward pressing arm 5-3 rotates around the second rotating shaft 5-4, and the downward pressing cross bar 5-2 positioned in the downward pressing slide groove 5-3-1 of the downward pressing arm 5-3 moves downward along the guide vertical groove 6-2-1 under the lever action of the downward pressing arm 5-3, thereby driving the downward pressing slide bar 5-1 and the pressure plate 7 to move downward; in the process of the first rotating shaft 5-5 continuing to move downward along the first guide slide groove 6-2-3, the second rotating shaft 5-4 also slides down along the second guide slide groove 6-2-2, and the downward pressing cross bar 5-2 serves as the force point of the lever, which is moved along with the first rotating shaft. 5-5 moves downward and moves in the downward pressing slide groove 5-3-1. During this process, the first rotating shaft 5-5 is gradually away from the downward pressing cross bar 5-2. That is to say, during this process, the lever ratio of the downward pressing arm 5-3 is gradually increased. As the second rotating shaft 5-4 slides along the second guide slide groove 6-2-2 to the side of the downward pressing cross bar 5-2, its lever ratio increases more obviously. Therefore, the force that the downward pressing driving mechanism needs to apply when driving the downward pressing slide bar 5-1 and the pressure plate 7 to press downward is gradually reduced, and the whole operation process is smoothly transitioned, which not only ensures the effective power carrying distance, but also achieves the labor-saving effect when the force is applied, which can effectively reduce the labor intensity of the operating workers.

[0064] In addition, rolling bearings 11 are respectively provided at the sliding connection between the outer side of the first rotating shaft 5-5 and the first guide groove 6-2-3, the sliding connection between the outer side of the second rotating shaft 5-4 and the second guide groove 6-2-2, and the sliding connection between the outer side of the downward pressure cross bar 5-2 and the downward pressure groove 5-3-1 of the present invention. By arranging rolling bearings 11 at each sliding connection, the sliding components can start smoothly with little resistance during relative movement, which saves effort when operating the equipment.

[0065] In the present invention, the pressing driving mechanism may be a manual pressing mechanism or a foot pressing mechanism. Figures 5 to 9 As shown, the pressing drive mechanism is a manual pressing mechanism, including a pressing handle 9-1, a driving shaft 9-2, a first linkage rod 9-3 and a second linkage rod 9-4, the driving shaft 9-2 horizontally passes through the side wall of the cantilever 6-2, the pressing handle 9-1 is vertically connected to one end of the driving shaft 9-2, one end of the first linkage rod 9-3 is fixedly connected to the driving shaft 9-2, the end of the first linkage rod 9-3 away from the driving shaft 9-2 is hinged to the second linkage rod 9-4, and the end of the second linkage rod 9-4 away from the first linkage rod 9-3 is hinged to the middle part of the first shaft 5-5; pressing the pressing handle 9-1 can drive the driving shaft 9-2 to rotate, and the driving shaft 9-2 drives the first shaft 5-5 to move downward through the first linkage rod 9-3 and the second linkage rod 9-4.

[0066] like Figures 10 to 12As shown, the pressing drive mechanism is a foot pressing mechanism, including a foot pedal device 12-1, a cable assembly 12-2, and a roller 12-4. The roller 12-4 is positioned in the inner cavity of the support arm 6 through a positioning rotating shaft 12-3, and the roller 12-4 is located below the side of the first guiding chute 6-2-3 away from the guiding vertical chute 6-2-1. One end of the cable assembly 12-2 is connected to the foot pedal device 12-1. The cable sheath 12-2-1 at the end of the cable assembly 12-2 away from the foot pedal device 12-1 is fixedly connected to the side wall of the column 6-1. The cable core 12-2-2 at the end of the cable assembly 12-2 away from the foot pedal device 12-1 bypasses the lower side of the roller 12-4 and extends upward and then is connected to the middle of the first rotating shaft 5-5. By pulling the cable core 12-2-2 with the foot pedal device 12-1, the first rotating shaft 5-5 can be driven to move downward. In this embodiment, the foot pedal device 12-1 is a prior art and will not be described in detail here.

[0067] As Figures 15 to 21As shown, the box body 1 of the present invention includes a box bottom 1-1, a box cover 1-4, two first side panels 1-2 respectively connected to the front and rear sides of the box bottom 1-1, and two second side panels 1-3 respectively connected to the left and right sides of the box bottom 1-1, and the two first side panels 1-2 and the two second side panels 1-3 are enclosed to form a box body; the four sides of the second side panels 1-3 are respectively bent to have flanges perpendicular to the second side panels 1-3, and the front and rear flanges 1-3-2 located on the front and rear sides are respectively provided with at least three side panel limiting grooves 1-3-2-1 inclined downward, and the upper flanges 1-3-3 and the lower flanges 1-3-1 located on the upper and lower sides are respectively provided with at least three internal thread connection holes Ⅰ1-3- 4; The left and right sides of the first side panel 1-2 are respectively provided with side panel limit pins 1-2-1 corresponding to the side panel limit grooves 1-3-2-1, and the bottom edge of the first side panel 1-2 is also provided with two connecting ears 1-2-2 for connecting with the box bottom 1-1, and the middle of the connecting ears 1-2-2 is provided with an internal thread connection hole II 1-2-3, and the top of the first side panel 1-2 is protruding with two box cover limit bosses 1-2-5; the lower side surface of the box cover 1-4 is concavely provided with a limit groove matching the box cover limit boss 1-2-5 at a position corresponding to the box cover limit boss 1-2-5; the two second side panels 1-3 are respectively positioned on the upper sides of the left and right sides of the box bottom 1-1, and are connected by the first connecting screws 1- 6 passes through the bottom of the box bottom 1-1 from the bottom surface of the box bottom 1-1 and cooperates with the internal thread connection hole Ⅰ1-3-4 of the lower flange 1-3-1 of the second side panel 1-3, so that the second side panel 1-3 is respectively connected to the upper side of the box bottom 1-1; the two first side panels 1-2 are respectively positioned on the upper sides of the front and rear sides of the box bottom 1-1, and the first connecting screws 1-6 pass through the bottom of the box bottom 1-1 from the bottom surface of the box bottom 1-1 and cooperate with the internal thread connection hole Ⅱ1-2-3 of the connecting ear 1-2-2 of the first side panel 1-2, so that the first side panels 1-2 are respectively connected to the upper side of the box bottom 1-1; the side edge of the first side panel 1-2 is connected to the side edge of the adjacent second side panel 1-3, and the side panel limiter of the first side panel 1-2 The pin 1-2-1 is positioned at the bottom of the side plate limiting groove 1-3-2-1 of the front and rear flanges 1-3-2 of the second side plate 1-3; the box cover 1-4 is positioned at the top of the first side plate 1-2 and the second side plate 1-3, and the box cover limiting boss 1-2-5 of the first side plate 1-2 is positioned in the limiting groove of the box cover 1-4, and the second connecting screw 1-5 passes through the box cover 1-4 from the upper end surface of the box cover 1-4 and then cooperates with the internal threaded connecting hole Ⅰ1-3-4 of the upper flange 1-3-3 of the second side plate 1-3, so that the box cover 1-4 is connected to the second side plate 1-3, so that the box bottom 1-1, the box cover 1-4, the first side plate 1-2 and the second side plate 1-3 are enclosed to form a closed box structure;A limiting hole 1-2-4 is provided on the side surface of the side plate limiting pin 1-2-1 of the first side plate 1-2. After the side plate limiting pin 1-2-1 is positioned at the bottom of the side plate limiting groove 1-3-2-1, the protrusion 1-3-2-2 at the upper end of the opening of the side plate limiting groove 1-3-2-1 is positioned in the limiting hole 1-2-4; Rubber pads 1-7 are respectively connected to the positions of the bottom of the box bottom 1-1 near the four corners. The box body 1 of the present invention adopts an assembly method of snap connection and screw connection. Its first side plate 1-2 and second side plate 1-3 are connected to the box bottom 1-1 and the box cover 1-4 through connecting screws, and the first side plate 1-2 and the second side plate 1-3 are connected through the cooperation of a limiting pin and a limiting groove. The connection is reliable, the assembly and disassembly are convenient and fast, and the processing technology of each component is simple, the forming deviation is small, the yield rate is high, and the manufacturing cost is low.

[0068] See Figures 22 to 26, a pitch regulator 3-5 is further provided on the workbench plate 3 of the present invention. A strip-shaped groove 3-3 for positioning the pitch regulator 3-5 is formed in the workbench plate 3 on the side of the cutter hole 3-1. A rack 3-4 is connected to the inner side wall of the strip-shaped groove 3-3, and a guiding groove 3-8 penetrating through the workbench plate 3 is formed at the bottom of the strip-shaped groove 3-3; the pitch regulator 3-5 includes an adjusting handwheel 3-5-2, a movable positioning block, a connecting bolt 3-5-1, a pressing spring 3-5-7 and a wing nut 3-5-8. A gear 3-5-3 is connected to the lower end of the adjusting handwheel 3-5-2. The movable positioning block includes a positioning cone 3-5-4 and a guiding block 3-5-6 connected to the lower end of the positioning cone 3-5-4. The guiding block 3-5-6 is positioned in the strip-shaped groove 3-3, and the positioning cone 3-5-4 is located on the upper end surface of the workbench plate 3. A through hole 3-5-5 for positioning the adjusting handwheel 3-5-2 is formed through the middle of the positioning cone 3-5-4 and the guiding block 3-5-6. The adjusting handwheel 3-5-2 is positioned in the through hole 3-5-5, and the gear 3-5-3 at the lower end of the adjusting handwheel 3-5-2 meshes with the rack 3-4. The connecting bolt 3-5-1 passes through the adjusting handwheel 3-5-2 and the guiding groove 3-8, and the lower end of the connecting bolt 3-5-1 extends to the lower side of the workbench plate 3. The pressing spring 3-5-7 is sleeved on the outer side of the connecting bolt 3-5-1 extending to the lower side of the workbench plate 3. The wing nut 3-5-8 is connected to the connecting bolt 3-5-1 and presses against the pressing spring 3-5-7; a scale mark 3-2 parallel to the strip-shaped groove 3-3 is further provided on the upper end surface of the workbench plate 3 on the side of the strip-shaped groove 3-3. A scale pointer 3-5-4-1 is convexly provided on one side of the circumferential outer side of the bottom of the positioning cone 3-5-4 close to the scale mark 3-2. During use, rotate the adjusting handwheel 3-5-2. Through the cooperation of the gear 3-5-3 at the lower end of the adjusting handwheel 3-5-2 and the rack 3-4, the rotational movement of the adjusting handwheel 3-5-2 is converted into the linear movement of the positioning cone 3-5-4, and the positioning cone 3-5-4 can be moved to the required position. Then, lock the pressing spring 3-5-7 through the wing nut 3-5-8, thereby fixing the position of the positioning cone 3-5-4; compared with the traditional method of relying on external force to push the positioning collar, in the present invention, by rotating the adjusting handwheel 3-5-2 and with the cooperation of the gear and rack, the position adjustment of the positioning cone 3-5-4 is more accurate; in addition, by locking the pressing spring 3-5-7 through the wing nut 3-5-8, the position of the positioning cone 3-5-4 is locked more stably and will not shift during use, having the advantages of accurate adjustment, convenient operation and strong stability.

[0069] Of course, the workbench plate 3 can also adopt another implementation manner, such as Figures 27 to 36As shown, a marking component 305 and a laser positioning component 304 are connected to the upper side edge of the workbench plate 3 of this embodiment, and the marking component 305 and the laser positioning component 304 are respectively located on both sides of the column 6-1. The marking component 305 includes a first base 3051, a cover plate 3052, a turbine 3055, a worm 3056, a marking driving motor 3058, a rotating shaft 3057, a swing arm 3053 and a marking pen 3054. The first base 3051 is connected to the position near the left end of the upper side edge of the workbench plate 3. The turbine 3055 is positioned on the first base 3051 through the rotating shaft 3057. The marking driving motor 3058 is fixedly connected to the first base 3051. The worm 3056 is connected to the output shaft of the marking driving motor 3058 and meshes with the turbine 3055. The cover plate 3052 covers the upper sides of the turbine 3055, the worm 3056, the rotating shaft 3057 and the marking driving motor 3058 and is connected to the first base 3051. The lower end of the swing arm 3053 is fixedly connected to one end of the rotating shaft 3057 and can rotate synchronously. The upper end of the swing arm 3053 is connected with a marking pen 3054. A marking hole 306 is provided at the position of the workbench plate 3 corresponding to the marking pen 3054. The laser positioning component 304 includes a second base 3041, a linear slide table component, a handwheel 3044 and a laser emitter 3045. The second base 3041 is connected to the position near the right end of the upper side edge of the workbench plate 3. The linear slide table component is positioned on the second base 3041. The handwheel 3044 is connected to the end of the ball screw 3042 of the linear slide table component. The laser emitter 3045 is positioned on the slide 3043 of the linear slide table component. A scale mark 3-2 is also provided at the position of the upper side surface of the workbench plate 3 corresponding to the laser positioning component 304. The beam emitted by the laser emitter 3045 irradiates on the scale mark 3-2.A torque clutch is also connected between the turbine 3055 and the rotating shaft 3057. The torque clutch includes a first friction plate 30593, a second friction plate 30594, a pressure plate 30592 and a pressure spring 30591. The pressure spring 30591, the pressure plate 30592, the first friction plate 30593, the second friction plate 30594 and the turbine 3055 are coaxially arranged on the rotating shaft 3057 in sequence. An outer side of the connection between the rotating shaft 3057 and the first friction plate 30593 is provided with a first limiting plane 30571. A mounting hole of the first friction plate 30593 is provided with a second limiting plane 5931 corresponding to the first limiting plane 30571. The first friction plate 30593 is fixedly connected to and rotates synchronously with the rotating shaft 3057 through the cooperation of the first limiting plane 30571 and the second limiting plane 5931. The pressure plate 30592, the second friction plate 30594 and the turbine 3055 are respectively rotatably connected to the rotating shaft 3057. At least three limiting blocks 5941 are protruded on a circumferential outer edge of the second friction plate 30594. A positioning boss 30551 for accommodating the torque clutch is provided on a side surface of the turbine 3055. A clamping groove 30552 corresponding to the limiting blocks 5941 is provided on the positioning boss 30551. The first friction plate 30593, the second friction plate 30594 and the pressure plate 30592 are respectively positioned in an inner cavity of the positioning boss 30551, and the limiting blocks 5941 of the second friction plate 30594 are positioned in the clamping grooves 30552 of the positioning boss 30551. Through the cooperation of the limiting blocks 5941 and the clamping grooves 30552, the second friction plate 30594 is fixedly connected to and can rotate synchronously with the turbine 3055. One end of the pressure spring 30591 abuts against a step of the rotating shaft 3057, and the other end of the pressure spring 30591 abuts against an outer side of the pressure plate 30592. A cam 30590 is also fixedly connected to the rotating shaft 3057. The cam 30590 is coaxially arranged with the rotating shaft 3057 and can rotate synchronously. A limiting convex block 5901 is provided on an outer edge of the cam 30590. A rotating shaft limiting convex platform 30511 is provided at a position of the first base 3051 corresponding to the cam 30590. When the rotating shaft 3057 drives the swing arm 3053 to rotate to the highest position, the limiting convex block 5901 abuts against the rotating shaft limiting convex platform 30511.When the workbench 3 of this embodiment is used for hole dividing operation, first, according to the spacing of the curtain Roman ring holes, the sliding table 3043 is moved by rotating the handwheel 3044 until the beam emitted by the laser emitter 3045 irradiates at an appropriate position on the scale mark 3-2; then, the position where the first ring hole of the curtain fabric needs to be punched is placed on the cutting knife hole 3-1 of the workbench 3, the first curtain Roman ring hole is cut, and the marking driving motor 3058 is controlled to work to drive the worm 3056 to rotate, so that the marking pen 3054 moves downward and makes a mark on the curtain fabric; then, the curtain fabric is moved so that the mark on the curtain fabric moves to the position irradiated by the beam of the laser emitter 3045, and the curtain fabric on the cutting knife hole 3-1 is the opening position of the next ring hole, which has the advantages of simple operation, convenient adjustment, accurate positioning, etc. The hole dividing method of the workbench 3 of this embodiment is: taking a point at the rear side of the already punched curtain ring hole as the reference point (that is, the mark made by the marking pen 3054 on the curtain fabric is the reference point), the distance between the reference point and the center of the curtain ring hole is usually 0.5L. After moving the reference point forward by a distance L (that is, moving the reference point to the position irradiated by the beam of the laser emitter 3045), at this time, the curtain fabric on the cutting knife hole 3-1 is the opening position of the next ring hole. It can be seen from this that the reference point and the reference point of the hole dividing method of the workbench of the present invention are arranged symmetrically on both sides of the cutting knife hole 3-1 approximately, so the overall size of the workbench 3 is smaller and the floor space occupied by the equipment is greatly reduced.

[0070] In addition, anti-slip lines 302 can be provided on the upper surface of the workbench 3 outside the circumference of the cutting knife hole 3-1 to increase the friction between the curtain fabric and the workbench 3; at the same time, the workbench 3 above the cutting knife hole 3-1 is also connected with a top distance adjusting baffle 3-6. The workbench 3 is provided with a number of grooves 3-7 cooperating with the top distance adjusting baffle 3-6, and size marks 3-9 are arranged between adjacent grooves 3-7. The top distance adjusting baffle 3-6 is positioned in the grooves 3-7. By adjusting the position of the top distance adjusting baffle 3-6 according to actual needs, it can be ensured that the distance from each curtain ring hole to the top edge of the curtain is equal when cutting the curtain Roman ring holes.

[0071] Such as Figures 37 to 39As shown in the figure, the pressure plate 7 of the present invention includes a pressing plate 7-1 and a brush 7-2. The lower end of the lower pressing slide rod 5-1 is provided with an external thread 5-1-1. The upper end surface of the pressing plate 7-1 is provided with a through hole 7-1-1 for connecting with the lower pressing slide rod 5-1. The lower end surface of the pressing plate 7-1 is recessed upward to form a cutter groove 7-1-2. The brush 7-2 includes a brush plate 7-2-1 and bristles 7-2-2 evenly connected to the brush plate 7-2-1. The middle of the brush plate 7-2-1 is provided with a threaded hole 7-2-4 that matches the external thread 5-1-1 of the lower pressing slide rod 5-1. At least one limiting strip 7-2-3 protrudes from the outer circumference of the brush plate 7-2-1. A limiting groove 7-1-3 corresponding to the limiting strip 7-2-3 is formed on the inner side wall of the cutter groove 7-1-2. The brush plate 7-2-1 is positioned in the cutter groove 7-1-2, and the limiting strip 7-2-3 is positioned in the corresponding limiting groove 7-1-3. The external thread 5-1-1 of the lower pressing slide rod 5-1 passes through the through hole 7-1-1 of the pressing plate 7-1 and is connected to the threaded hole 7-2-4 of the brush plate 7-2-1, thereby fixing the brush 7-2 in the cutter groove 7-1-2. The lower end surface of the pressing plate 7-1 is further connected with a sponge layer, which can ensure that the pressing plate 7-1 will not damage the curtain fabric when pressing down the curtain fabric. The pressure plate 7 of the present invention adopts a split structure. By providing a detachable brush 7-2 inside the pressing plate 7-1, it provides effective support for the curtain fabric when cutting the curtain loop holes, avoiding defects such as cutting wire connection, loose opening, and incomplete cutting caused by the backward displacement of the curtain fabric during cutting, and effectively improving the forming effect of the curtain loop holes. In addition, the brush 7-2 of the present invention is fixed in the cutter groove 7-1-2 through the external thread 5-1-1 of the lower pressing slide rod 5-1, and is matched with the limiting strip 7-2-3 and the limiting groove 7-1-3 to prevent the brush 7-2 from rotating during work, improving the stability and reliability of the present invention. When the brush 7-2 is damaged, only the brush 7-2 needs to be replaced separately, which is convenient for disassembly and replacement and has low maintenance costs.

[0072] At the position corresponding to the lower pressing arm 5-3 on the side wall of the cantilever 6-2, a travel switch 4 electrically connected to the drive motor 10 is further provided. When the lower pressing slide rod 5-1 and the pressure plate 7 press down the curtain fabric until it contacts the rotary cutter 2-1, the lower pressing arm 5-3 presses against the pressing piece 4-1 of the travel switch 4, and the travel switch 4 is in a conductive state. At this time, the drive motor 10 works to drive the cutter assembly 2 to rotate, completing the cutting operation of the curtain loop holes. When the cutting of the curtain loop holes is completed, the lower pressing slide rod 5-1 moves upward under the action of the return spring 5-6, that is, when the lower pressing arm 5-3 leaves the travel switch 4, the travel switch 4 is in a power-off state, the drive motor 10 does not work, and the cutter assembly 2 stops rotating. With this design, the cutter assembly 2 is in a stopped state when not cutting the curtain loop holes and rotates to cut the curtain loop holes only when the curtain fabric contacts the rotary cutter 2-1. This not only increases the use safety of the equipment but also reduces energy consumption.

[0073] During operation, the curtain fabric is positioned on the workbench plate 3, and the area of the curtain fabric to be perforated is located in the cutter hole 3-1. By pressing down the driving mechanism, the first rotating shaft 5-5 moves downward. Under the lever action of the pressing-down cross bar 5-2 on the pressing-down arm 5-3, it moves downward along the guiding vertical groove 6-2-1, thereby driving the pressing-down sliding rod 5-1 and the pressing disc 7 to move downward. The pressing disc 7 presses the curtain fabric tightly against the workbench plate 3. As the pressing-down sliding rod 5-1 and the pressing disc 7 continue to press down the workbench plate 3, the rotary cutter 2-1 contacts the curtain fabric and cuts the curtain loop holes. Using the curtain hole punching machine of the present invention to perform loop hole punching operations on curtain fabrics can not only effectively improve work efficiency, but also the cut loop holes are beautifully formed, the distances between the loop holes are the same, and the quality of the finished curtain is guaranteed.

[0074] The above embodiments are only the preferred embodiments of the present invention. The structure of the present invention is not limited to the forms listed in the above embodiments. Any modifications, equivalent replacements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A curtain hole punching machine, comprising a box body (1), a driving motor (10), a workbench plate (3), a cutter assembly (2), a support arm (6), a pressing mechanism (5) and a pressing driving mechanism; the driving motor (10) is positioned in the box body (1), the support arm (6) is of a hollow structure, the support arm (6) includes a column (6-1) and a cantilever (6-2) vertically connected to the upper end of the column (6-1), and the lower end of the column (6-1) is connected to the upper end surface of the box body (1); the workbench plate (3) is positioned between the cantilever (6-2) and the upper end surface of the box body (1) through at least two buffer assemblies (8), and a cutter hole (3-1) penetrating through its upper and lower end surfaces is formed on the workbench plate (3); the buffer assembly (8) includes a guide rod (8-1), a buffer spring (8-2) and a guide sleeve (8-3), the guide rods (8-1) are respectively connected to the lower end surface of the workbench plate (3), the buffer spring (8-2) is sleeved outside the guide rod (8-1), and the guide sleeves (8-3) are respectively connected to the upper end surface of the box body (1) and cooperate with the corresponding guide rods (8-1); It is characterized in that: The cutting tool assembly (2) includes a main shaft (2-2) and a cylindrical rotary cutting tool (2-1). The upper end opening of the rotary cutting tool (2-1) is a cutting edge (2-1-1), and the lower end of the rotary cutting tool (2-1) is connected to the upper end of the main shaft (2-2). A positioning taper hole (2-1-2) coaxial with the rotary cutting tool (2-1) is provided on the lower end surface of the rotary cutting tool (2-1). A tapered boss (2-2-2) corresponding to the positioning taper hole (2-1-2) is provided at the upper end of the main shaft (2-2), and the tapered boss (2-2-2) is coaxial with the main shaft (2-2). The upper end of the main shaft (2-2) is connected to the rotary cutting tool (2-1) through a multi-start thread (2-2-1), and the tapered boss (2-2-2) is fitted with the positioning taper hole (2-1-2). The lower end of the main shaft (2-2) extends into the box body (1) and is connected to the box body (1) through a bearing I (2-3). The rotary cutting tool (2-1) connected to the upper end of the main shaft (2-2) is located in the cutting tool hole (3-1) of the workbench plate (3). The lower end of the main shaft (2-2) is connected to a driving motor (10) through a worm and worm gear assembly. The driving worm (2-5) of the worm and worm gear assembly is connected to the output shaft of the driving motor (10). The driving worm wheel (2-4) of the worm and worm gear assembly is connected to the outer side of the main shaft (2-2) near the lower end, and the driving worm (2-5) meshes with the driving worm wheel (2-4). On both sides of the cantilever (6-2), there are symmetrically arranged guiding vertical grooves (6-2-1), first guiding sliding grooves (6-2-3) and second guiding sliding grooves (6-2-2). The guiding vertical grooves (6-2-1) are arranged in the vertical direction. The first guiding sliding grooves (6-2-3) and the second guiding sliding grooves (6-2-2) are respectively arranged on both sides of the guiding vertical grooves (6-2-1). The first guiding sliding grooves (6-2-3) are arc-shaped, gradually moving away from the guiding vertical grooves (6-2-1) from top to bottom and then gradually approaching the guiding vertical grooves (6-2-1). The second guiding sliding grooves (6-2-2) are arranged obliquely from top to bottom, and the lower ends of the second guiding sliding grooves (6-2-2) gradually approach the lower ends of the guiding vertical grooves (6-2-1). The pressing mechanism (5) includes a pressing sliding rod (5-1), a pressing cross bar (5-2), a return spring (5-6) and two pressing arms (5-3). The pressing sliding rod (5-1) is slidably positioned in the cavity of the cantilever (6-2) in the vertical direction, and both ends of the pressing sliding rod (5-1) respectively pass through the upper and lower end faces of the cantilever (6-2). A pressing disc (7) is also connected to the lower end of the pressing sliding rod (5-1). The pressing cross bar (5-2) is vertically connected to the middle of the pressing sliding rod (5-1), and both ends of the pressing cross bar (5-2) are respectively positioned in the guiding vertical grooves (6-2-1) and extend to the outside of the cantilever (6-2). The return spring (5-6) is sleeved outside the pressing sliding rod (5-1) and is located between the pressing cross bar (5-2) and the inner wall of the bottom of the cantilever (6-2). A pressing sliding groove (5-3-1) is formed in the middle of the pressing arm (5-3). The two pressing arms (5-3) are respectively symmetrically arranged outside the cantilever (6-2). The two ends of the two pressing arms (5-3) are respectively connected to each other through a first rotating shaft (5-5) and a second rotating shaft (5-4). The first rotating shaft (5-5) is slidably positioned in the first guiding sliding groove (6-2-3), and the second rotating shaft (5-4) is slidably positioned in the second guiding sliding groove (6-2-2). Both ends of the pressing cross bar (5-2) are respectively slidably positioned in the pressing sliding grooves (5-3-1) of the corresponding pressing arms (5-3). The middle of the first rotating shaft (5-5) is connected to the pressing driving mechanism. Rolling bearings (11) are respectively arranged at the sliding connection between the outside of the first rotating shaft (5-5) and the first guiding sliding groove (6-2-3), the sliding connection between the outside of the second rotating shaft (5-4) and the second guiding sliding groove (6-2-2), and the sliding connection between the outside of the pressing cross bar (5-2) and the pressing sliding groove (5-3-1). During operation, the curtain fabric is positioned on the workbench plate (3), and the area of the curtain fabric to be perforated is located in the cutter hole (3-1). By pressing down the driving mechanism, the first rotating shaft (5-5) moves downward. Under the lever action of the pressing cross bar (5-2) by the pressing arm (5-3), it moves downward along the guiding vertical groove (6-2-1), thereby driving the pressing slide bar (5-1) and the pressing disc (7) to move downward. The pressing disc (7) presses the curtain fabric tightly against the workbench plate (3). As the pressing slide bar (5-1) and the pressing disc (7) continue to press down the workbench plate (3), the rotary cutter (2-1) contacts the curtain fabric and cuts the curtain loop hole.

2. The curtain hole punching machine according to claim 1, characterized in that The box body (1) includes a box bottom (1-1), a box cover (1-4), two first side plates (1-2) respectively and oppositely connected to the front and rear sides of the box bottom (1-1), and two second side plates (1-3) respectively and oppositely connected to the left and right sides of the box bottom (1-1). The two first side plates (1-2) and the two second side plates (1-3) enclose to form the box body; Four sides of the second side plate (1-3) are respectively bent with flanges perpendicular to the second side plate (1-3), and at least 3 downwardly inclined side plate limiting grooves (1-3-2-1) are respectively provided on the front and rear flanges (1-3-2) located on the front and rear sides, and at least 3 internal thread connection holes I (1-3-4) are respectively provided on the upper flange (1-3-3) and the lower flange (1-3-1) located on the upper and lower sides; Side plate limiting pins (1-2-1) corresponding to the side plate limiting grooves (1-3-2-1) are respectively provided on the left and right sides of the first side plate (1-2). Two connecting ears (1-2-2) for connecting with the box bottom (1-1) are further provided at the bottom edge of the first side plate (1-2), and an internal thread connection hole II (1-2-3) is provided in the middle of the connecting ear (1-2-2). Two box cover limiting bosses (1-2-5) are protrudingly provided at the top of the first side plate (1-2); A limiting groove matching with the box cover limiting boss (1-2-5) is recessed at a position corresponding to the box cover limiting boss (1-2-5) on the lower side surface of the box cover (1-4); The two second side plates (1-3) are respectively positioned on the upper sides of the left and right sides of the box bottom (1-1), and are connected to the box bottom (1-1) by first connecting screws (1-6) passing through the box bottom (1-1) from the bottom surface of the box bottom (1-1) and matching with the internal thread connection holes I (1-3-4) of the lower flanges (1-3-1) of the second side plates (1-3), so as to respectively connect the second side plates (1-3) to the upper side of the box bottom (1-1); The two first side plates (1-2) are respectively positioned on the upper sides of the front and rear sides of the box bottom (1-1), and are connected to the box bottom (1-1) by first connecting screws (1-6) passing through the box bottom (1-1) from the bottom surface of the box bottom (1-1) and matching with the internal thread connection holes II (1-2-3) of the connecting ears (1-2-2) of the first side plates (1-2), so as to respectively connect the first side plates (1-2) to the upper side of the box bottom (1-1); The side of the first side plate (1-2) is connected to the side of the adjacent second side plate (1-3), and the side plate limiting pin (1-2-1) of the first side plate (1-2) is positioned at the bottom of the side plate limiting groove (1-3-2-1) of the front and rear flanges (1-3-2) of the second side plate (1-3);The box cover (1-4) is positioned at the top of the first side plate (1-2) and the second side plate (1-3), and the cover limiting boss (1-2-5) of the first side plate (1-2) is positioned in the limiting groove of the box cover (1-4). The second connecting screw (1-5) passes through the upper end face of the box cover (1-4) and then mates with the internal thread connecting hole I (1-3-4) of the upward flanging (1-3-3) of the second side plate (1-3), thereby connecting the box cover (1-4) with the second side plate (1-3), so that the box bottom (1-1), the box cover (1-4), the first side plate (1-2) and the second side plate (1-3) enclose a closed box body structure; a limiting hole (1-2-4) is provided on the side of the side plate limiting pin (1-2-1) of the first side plate (1-2). After the side plate limiting pin (1-2-1) is positioned at the bottom of the side plate limiting groove (1-3-2-1), the protrusion (1-3-2-2) at the upper end of the opening of the side plate limiting groove (1-3-2-1) is positioned in the limiting hole (1-2-4); rubber pads (1-7) are respectively connected to the positions of the bottom of the box bottom (1-1) near the four corners.

3. The curtain hole punching machine according to claim 1, characterized in that A hole pitch adjuster (3-5) is further provided on the workbench plate (3). A strip-shaped groove (3-3) for positioning the hole pitch adjuster (3-5) is formed in the workbench plate (3) on the side of the cutter hole (3-1). A rack (3-4) is connected to the inner side wall of the strip-shaped groove (3-3), and a guiding groove (3-8) penetrating the workbench plate (3) is formed at the bottom of the strip-shaped groove (3-3); The hole pitch adjuster (3-5) includes an adjusting handwheel (3-5-2), a movable positioning block, a connecting bolt (3-5-1), a pressing spring (3-5-7) and a wing nut (3-5-8). A gear (3-5-3) is connected to the lower end of the adjusting handwheel (3-5-2). The movable positioning block includes a positioning cone (3-5-4) and a guiding block (3-5-6) connected to the lower end of the positioning cone (3-5-4). The guiding block (3-5-6) is positioned in the strip-shaped groove (3-3), and the positioning cone (3-5-4) is located on the upper end surface of the workbench plate (3). A through hole (3-5-5) for positioning the adjusting handwheel (3-5-2) is formed through the middle of the positioning cone (3-5-4) and the guiding block (3-5-6). The adjusting handwheel (3-5-2) is positioned in the through hole (3-5-5), and the gear (3-5-3) at the lower end of the adjusting handwheel (3-5-2) meshes with the rack (3-4). The connecting bolt (3-5-1) passes through the adjusting handwheel (3-5-2) and the guiding groove (3-8), and the lower end of the connecting bolt (3-5-1) extends to the lower side of the workbench plate (3). The pressing spring (3-5-7) is sleeved outside the connecting bolt (3-5-1) extending to the lower side of the workbench plate (3). The wing nut (3-5-8) is connected to the connecting bolt (3-5-1) and presses against the pressing spring (3-5-7); A scale mark (3-2) parallel to the strip-shaped groove (3-3) is further provided on the upper end surface of the workbench plate (3) on the side of the strip-shaped groove (3-3). A scale pointer (3-5-4-1) is convexly provided on one side of the outer circumference of the bottom of the positioning cone (3-5-4) close to the scale mark (3-2).

4. The curtain hole punching machine according to claim 1, characterized in that A marking component (305) and a laser positioning component (304) are connected to the upper side edge of the workbench plate (3), and the marking component (305) and the laser positioning component (304) are respectively located on both sides of the column (6-1). The marking component (305) includes a first base (3051), a cover plate (3052), a turbine (3055), a worm (3056), a marking driving motor (3058), a rotating shaft (3057), a swing arm (3053) and a marking pen (3054). The first base (3051) is connected to the position near the left end of the upper side edge of the workbench plate (3). The turbine (3055) is positioned on the first base (3051) through the rotating shaft (3057). The marking driving motor (3058) is fixedly connected to the first base (3051). The worm (3056) is connected to the output shaft of the marking driving motor (3058) and meshes with the turbine (3055). The cover plate (3052) covers the upper sides of the turbine (3055), the worm (3056), the rotating shaft (3057) and the marking driving motor (3058) and is connected to the first base (3051). The lower end of the swing arm (3053) is fixedly connected to one end of the rotating shaft (3057) and can rotate synchronously. The upper end of the swing arm (3053) is connected with a marking pen (3054). A marking hole (306) is provided at the position corresponding to the marking pen (3054) on the workbench plate (3). The laser positioning component (304) includes a second base (3041), a linear slide table component, a handwheel (3044) and a laser emitter (3045). The second base (3041) is connected to the position near the right end of the upper side edge of the workbench plate (3). The linear slide table component is positioned on the second base (3041). The handwheel (3044) is connected to the end of the ball screw (3042) of the linear slide table component. The laser emitter (3045) is positioned on the slide (3043) of the linear slide table component. A scale mark (3-2) is further provided on the upper side surface of the workbench plate (3) at the position corresponding to the laser positioning component (304). The light beam emitted by the laser emitter (3045) irradiates on the scale mark (3-2).

5. The curtain hole punching machine according to claim 4, characterized in that A torque clutch is also connected between the turbine (3055) and the rotating shaft (3057). The torque clutch includes a first friction plate (30593), a second friction plate (30594), a pressure plate (30592) and a compression spring (30591). The compression spring (30591), the pressure plate (30592), the first friction plate (30593), the second friction plate (30594) and the turbine (3055) are coaxially arranged on the rotating shaft (3057) in sequence. An outer side of the connection between the rotating shaft (3057) and the first friction plate (30593) is provided with a first limiting plane (30571). A second limiting plane (5931) corresponding to the first limiting plane (30571) is provided in the mounting hole of the first friction plate (30593). The first friction plate (30593) is fixedly connected to and rotates synchronously with the rotating shaft (3057) through the cooperation between the first limiting plane (30571) and the second limiting plane (5931). The pressure plate (30592), the second friction plate (30594) and the turbine (3055) are respectively rotatably connected to the rotating shaft (3057). At least three limiting blocks (5941) are protrudingly provided on a circumferential outer edge of the second friction plate (30594). A positioning boss (30551) for accommodating the torque clutch is provided on a side surface of the turbine (3055). A clamping groove (30552) corresponding to the limiting blocks (5941) is provided on the positioning boss (30551). The first friction plate (30593), the second friction plate (30594) and the pressure plate (30592) are respectively positioned in an inner cavity of the positioning boss (30551), and the limiting blocks (5941) of the second friction plate (30594) are positioned in the clamping grooves (30552) of the positioning boss (30551). The second friction plate (30594) is fixedly connected to and can rotate synchronously with the turbine (3055) through the cooperation between the limiting blocks (5941) and the clamping grooves (30552). One end of the compression spring (30591) abuts against a step of the rotating shaft (3057), and the other end of the compression spring (30591) abuts against an outer side of the pressure plate (30592). A cam (30590) is also fixedly connected to the rotating shaft (3057). The cam (30590) is coaxially arranged with the rotating shaft (3057) and can rotate synchronously. A limiting convex block (5901) is provided on an outer edge of the cam (30590). A rotating shaft limiting convex platform (30511) is provided at a position of the first base (3051) corresponding to the cam (30590). When the rotating shaft (3057) drives the swing arm (3053) to rotate to the highest position, the limiting convex block (5901) abuts against the rotating shaft limiting convex platform (30511).

6. The curtain hole punching machine according to claim 3 or 4, characterized in that On the upper surface of the table board (3) on the outer circumference of the cutter hole (3-1), there are anti-slip lines (302); on the table board (3) above the cutter hole (3-1), there is also a top distance adjusting baffle (3-6) connected. On the table board (3), there are several grooves (3-7) cooperating with the top distance adjusting baffle (3-6). Between adjacent grooves (3-7), there are size marks (3-9). The top distance adjusting baffle (3-6) is positioned in the grooves (3-7).

7. The curtain hole punching machine according to claim 1, characterized in that The pressing plate (7) includes a pressing board (7-1) and a brush (7-2). At the lower end of the downward pressing slide rod (5-1), there is an external thread (5-1-1). On the upper end face of the pressing board (7-1), there is a through hole (7-1-1) for connecting with the downward pressing slide rod (5-1). On the lower end face of the pressing board (7-1), there is a cutter groove (7-1-2) sunken upward; the brush (7-2) includes a brush board (7-2-1) and bristles (7-2-2) evenly connected to the brush board (7-2-1). In the middle of the brush board (7-2-1), there is a threaded hole (7-2-4) cooperating with the external thread (5-1-1) of the downward pressing slide rod (5-1). On the outer circumference of the brush board (7-2-1), there protrudes at least one limiting strip (7-2-3). On the inner side wall of the cutter groove (7-1-2), there is a limiting groove (7-1-3) corresponding to the limiting strip (7-2-3). The brush board (7-2-1) is positioned in the cutter groove (7-1-2), and the limiting strip (7-2-3) is positioned in the corresponding limiting groove (7-1-3). The external thread (5-1-1) of the downward pressing slide rod (5-1) passes through the through hole (7-1-1) of the pressing board (7-1) and is connected to the threaded hole (7-2-4) of the brush board (7-2-1), thereby fixing the brush (7-2) in the cutter groove (7-1-2); on the lower end face of the pressing board (7-1), there is also a sponge layer connected.

8. The curtain hole punching machine according to claim 1, characterized in that At the position of the side wall of the cantilever (6-2) corresponding to the downward pressing arm (5-3), there is also a travel switch (4) electrically connected to the drive motor (10); when the downward pressing slide rod (5-1) and the pressing plate (7) press the curtain fabric down to contact the rotary cutter (2-1), the downward pressing arm (5-3) presses against the pressure lever piece (4-1) of the travel switch (4), and the travel switch (4) is in a conducting state.

9. The curtain hole punching machine according to claim 1, characterized in that The downward pressing drive mechanism is a manual downward pressing mechanism, including a downward pressing handle (9-1), a driving rotating shaft (9-2), a first linkage rod (9-3) and a second linkage rod (9-4). The driving rotating shaft (9-2) horizontally penetrates through the side wall of the cantilever (6-2). The downward pressing handle (9-1) is vertically connected to one end of the driving rotating shaft (9-2). One end of the first linkage rod (9-3) is fixedly connected to the driving rotating shaft (9-2). The end of the first linkage rod (9-3) far from the driving rotating shaft (9-2) is hinged to the second linkage rod (9-4). The end of the second linkage rod (9-4) far from the first linkage rod (9-3) is hinged to the middle of the first rotating shaft (5-5). Pressing the downward pressing handle (9-1) can drive the driving rotating shaft (9-2) to rotate, and the driving rotating shaft (9-2) drives the first rotating shaft (5-5) to move downward through the first linkage rod (9-3) and the second linkage rod (9-4).

10. The curtain hole punching machine according to claim 1, characterized in that The downward pressing drive mechanism is a foot-operated downward pressing mechanism, including a foot-operated device (12-1), a cable assembly (12-2) and a roller (12-4). The roller (12-4) is positioned in the inner cavity of the support arm (6) through a positioning rotating shaft (12-3), and the roller (12-4) is located below the side of the first guiding chute (6-2-3) far from the guiding vertical chute (6-2-1). One end of the cable assembly (12-2) is connected to the foot-operated device (12-1). The cable sheath (12-2-1) at the end of the cable assembly (12-2) far from the foot-operated device (12-1) is fixedly connected to the side wall of the column (6-1). The cable core (12-2-2) at the end of the cable assembly (12-2) far from the foot-operated device (12-1) bypasses the lower side of the roller (12-4) and extends upward and then is connected to the middle of the first rotating shaft (5-5). Pulling the cable core (12-2-2) through the foot-operated device (12-1) can drive the first rotating shaft (5-5) to move downward.

Images