Small-sized die-replaceable sheet punching machine

Abstract

The utility model discloses a small-sized sheet punching machine with a replaceable die. Comprising a base, a lower fixing plate installed on the base, an upper fixing plate installed on the lower fixing plate through guide columns, an air cylinder installed on the upper fixing plate, a lifting plate driven by the air cylinder, an upper die assembly installed on the lifting plate and a lower die assembly installed on the lower fixing plate and in butt joint with the upper die assembly. The upper die assembly comprises a T-shaped upper die plate and an upper positioning and locking mechanism, the upper positioning and locking mechanism comprises L-shaped guide rails, positioning pins and die locking screws, the two L-shaped guide rails are symmetrically installed on the lifting plate, installation grooves for installing the T-shaped upper die plate in a sliding mode are formed in the opposite faces of the two L-shaped guide rails, and the T-shaped upper die plate is installed at the installation sliding grooves in a clamped mode. Locating pins are installed on the outer sides of the vertical ends of the two L-shaped guide rails, and mold locking screws are installed at the horizontal ends of the two L-shaped guide rails. By means of the mode, the die can be rapidly replaced, the rigidity of the stamping mechanism is guaranteed, the machining precision is guaranteed, double protection is achieved, the safety coefficient is high, and material taking is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a punching machine technical field, in particular to a small -size replaceable die's punching machine. BACKGROUND

[0002] The punching machine is used for cutting rubber, plastic, leather and other special materials into various standard test pieces. When the punching machine works, the material piece needs to be placed on the lower loading table, and then the die cutter is driven to complete the punching action on the material piece.

[0003] The utility model discloses a replaceable die's punching device, and the die mechanism of the replaceable die's punching device has the following defects: (1) only through the limiting rod, the lower die and the upper die are respectively locked on the machine body and the lifting platform, the die has greater punching force in the punching process, and the one-way locking makes the rigidity of the die insufficient, which can affect the machining precision; (2) the setting of the safety grating can guarantee the safety when the object enters the equipment in the working process, but in the punching process, the waste material can splash, which can easily injure the operator, and even cause serious safety accidents; (3) after the device is punched, the finished product needs to be taken out from the die manually, and the taking is not convenient.

[0004] Based on the above defects and deficiencies, it is necessary to improve the existing technology and design a small replaceable die's punching machine. UTILITY MODEL CONTENTS

[0005] The utility model mainly solves the technical problem to provide a small replaceable die's punching machine, can replace the die fast, guarantees the rigidity of the punching mechanism, guarantees the machining precision, double protection, and the safety factor is high, and taking is convenient.

[0006] In order to solve the above technical problems, one technical scheme of the utility model is: a small replaceable die's punching machine, the small replaceable die's punching machine includes the base, the lower fixed plate installed on the base, the upper fixed plate installed on the lower fixed plate through the guide column, the air cylinder installed on the upper fixed plate and the lifting plate driven by the air cylinder.

[0007] Preferably, the upper die assembly mounted on the lifting plate and the lower die assembly mounted on the lower fixed plate are also included, the upper die assembly includes a T-shaped upper die plate and an upper positioning and locking mechanism, the T-shaped upper die plate is mounted on the upper positioning and locking mechanism and can be quickly disassembled, the upper positioning and locking mechanism includes L-shaped guide rails, positioning pins and die locking screws, two L-shaped guide rails are symmetrically mounted on the lifting plate, the opposite surfaces of the two L-shaped guide rails are provided with installation grooves for slidingly mounting the T-shaped upper die plate, the two sides of the T-shaped upper die plate are slidingly clamped in the installation grooves, the outer sides of the vertical ends of the two L-shaped guide rails are provided with positioning pins for positioning the T-shaped upper die plate in the horizontal direction, the side ends of the T-shaped upper die plate are provided with positioning holes matched with the positioning pins, and the horizontal ends of the two L-shaped guide rails are provided with die locking screws for locking the T-shaped upper die plate in the vertical direction.

[0008] Preferably, the upper die assembly further includes an upper die cutter and an upper die handle, the upper die cutter is mounted on the T-shaped upper die plate, the shape of the upper die cutter is set according to the shape of the product die, and the outer side of the T-shaped upper die plate is provided with the upper die handle for pulling the T-shaped upper die plate during disassembly.

[0009] Preferably, the lower die assembly includes an inverted T-shaped lower die plate, a lower positioning and locking mechanism, a profiling bottom plate and a lower die handle, the structure of the lower positioning and locking mechanism is the same as that of the upper positioning and locking mechanism, the inverted T-shaped lower die plate is mounted on the lower positioning and locking mechanism and can be quickly disassembled, the position of the inverted T-shaped lower die plate is vertically matched with the T-shaped upper die plate, the profiling bottom plate is mounted on the inverted T-shaped lower die plate and is used for stamping the material sheet in cooperation with the upper die cutter, the profiling bottom plate is provided with a profiling hole for dropping the finished product, and the inverted T-shaped lower die plate and the lower fixed plate are provided with a discharge port for dropping the finished product.

[0010] Preferably, the safety protection assembly is also included, the safety protection assembly includes two safety baffle plates, a straight grain knob, a door magnetic switch and a safety grating, the safety baffle plates are mounted on the two sides of the upper fixed plate, the safety baffle plates are provided with two limiting grooves parallel to each other in the vertical direction, the straight grain knob passes through the limiting grooves to mount the safety baffle plates on the two sides of the upper fixed plate, the safety baffle plates slide up and down within the range of the limiting grooves, the lower ends of the safety baffle plates and the lower fixed plate are provided with the door magnetic switch for controlling the opening and closing of the safety baffle plates, and the safety grating is mounted between the lower fixed plate and the upper fixed plate and is used for monitoring whether an object enters the equipment.

[0011] Preferably, the material collecting box for collecting the finished product is also included, the material collecting box is mounted at the rear end inside the base, the magnet for attracting the material collecting box is mounted in the base, the material collecting box is a cuboid, the cavity for collecting the material is formed in the cuboid, and the handle for pulling the material collecting box is mounted on the outer end face of the material collecting box.

[0012] Preferably, the base comprises a shell, a crossbar handle and an operation button, the shell is provided with the operation button at the front end, and the crossbar handle for carrying the equipment is installed on both sides of the shell.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] Through the setting L-shaped guide rail, T-shaped template and handle, the die can be quickly disassembled and replaced;

[0015] Through the setting positioning locking mechanism, the T-shaped template is locked from the horizontal and vertical directions, the stability of the stamping structure is improved, and the machining precision is ensured;

[0016] Through the setting safety baffle and safety grating, the waste material can be prevented from splashing in the stamping process, whether the object enters the equipment in the stamping process can be monitored, double protection is realized, and the safety factor is high;

[0017] Through the setting profiling hole, blanking port and material receiving box, the operator does not need to enter the equipment to take the finished product, the stamping finished product can be taken in the material receiving box, and the safety is convenient;

[0018] The device can quickly replace the die, ensure the rigidity of the stamping mechanism, ensure the machining precision, realize double protection, have high safety factor and convenient material taking. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structure schematic view of the front of a small punch machine with replaceable die.

[0020] Fig. 2 It is a structure schematic view of the upper and lower die assembly of a small punch machine with replaceable die.

[0021] Fig. 3 It is a structure schematic view of the side of a small punch machine with replaceable die.

[0022] Fig. 4 It is a structure schematic view of the other side of a small punch machine with replaceable die.

[0023] Wherein, 1, base; 2, material receiving box; 3, lower fixed plate; 4, upper fixed plate; 5, guide column; 6, lifting plate; 7, upper die assembly; 8, lower die assembly; 9, air cylinder; 10, safety protection assembly; 11, shell; 12, cross bar handle; 13, operation button; 21, handle; 71, T-shaped upper die plate; 72, upper positioning locking mechanism; 73, upper die cutter; 74, upper die handle; 721, L-shaped guide rail; 722, positioning pin; 723, die locking screw; 81, inverted T-shaped lower die plate; 82, lower positioning locking mechanism; 83, profiling bottom plate; 84, lower die handle; 810, blanking opening; 831, profiling hole; 91, piston rod; 101, safety baffle; 102, straight grain knob; 103, door magnetic switch; 104, safety grating; 1011, limiting groove. DETAILED DESCRIPTION

[0024] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0025] Please refer to Figs. 1 to 4 The utility model embodiment includes:

[0026] A small punch machine with replaceable dies, which comprises a base 1, a material receiving box 2, a lower fixed plate 3, an upper fixed plate 4, a guide column 5, a lifting plate 6, an upper die assembly 7, a lower die assembly 8, an air cylinder 9 and a safety protection assembly 10. The base 1 is internally magnetically attached at the rear end for receiving the finished product after stamping, and the material receiving box 2 is installed at the upper end of the lower fixed plate 3. The guide column 5 is installed on the lower fixed plate 3, and the upper end of the guide column 5 is tightly installed on the upper fixed plate 4 through a screw rod. The air cylinder 9 is installed on the upper fixed plate 4, and the piston rod 91 at the lower end of the air cylinder 9 is fixedly connected with the lifting plate 6 through the upper fixed plate 4. The lifting plate 6 is sleeved on the guide column 5, and the air cylinder 9 is used to drive the lifting plate 6 to move back and forth on the guide column 5. The upper die assembly 7 of the replaceable die is installed on the lifting plate 6. The lower die assembly 8 of the replaceable die is arranged in butt joint below the upper die assembly 7 to cooperate with the upper die assembly 7 to stamp the material belt. The lower die assembly 8 is installed on the lower fixed plate 3. The safety protection assembly 10 is installed at the side end of the lower fixed plate 3 and the upper fixed plate 4 to prevent the articles from spilling out and to monitor the articles entering the equipment.

[0027] The upper die assembly 7 comprises a T-shaped upper die plate 71, an upper positioning and locking mechanism 72, an upper die cutter 73 and an upper die handle 74. The upper positioning and locking mechanism 72 is installed on the lifting plate 6, and the T-shaped upper die plate 71 is installed on the upper positioning and locking mechanism 72 in a quick detachable manner. The upper positioning and locking mechanism 72 comprises L-shaped guide rails 721, positioning pins 722 and die locking screws 723. Two L-shaped guide rails 721 are symmetrically installed on the lifting plate 6, and the opposite faces of the two L-shaped guide rails 721 are provided with installation sliding grooves for slidingly installing the T-shaped upper die plate 71. The two sides of the T-shaped upper die plate 71 extend to be slidingly clamped in the installation sliding grooves. The outer sides of the vertical ends of the two L-shaped guide rails 721 are provided with the positioning pins 722 for positioning the T-shaped upper die plate 71 in the horizontal direction. The side ends of the T-shaped upper die plate 71 are provided with positioning holes matched with the positioning pins 722. The positioning pins 722 are inserted into the positioning holes of the T-shaped upper die plate 71 through the L-shaped guide rails 721, so as to transversely fix the T-shaped upper die plate 71 on the two L-shaped guide rails 721. The horizontal ends of the two L-shaped guide rails 721 are provided with the die locking screws 723 for vertically locking the T-shaped upper die plate 71. The die locking screws 723 lock the T-shaped upper die plate 71 on the lifting plate 6 upwardly. The T-shaped upper die plate 71 is provided with the upper die cutter 73 for die punching. The shape of the upper die cutter 73 is set according to the shape of the product die. The outer side of the T-shaped upper die plate 71 is provided with the upper die handle 74 for pulling out the T-shaped upper die plate 71 when it is replaced. When the die is replaced, the positioning pins 722 and the die locking screws 723 are loosened, the T-shaped upper die plate 71 is pulled out from the L-shaped guide rails 721 through the upper die handle 74, after being pulled out, the upper die cutter 73 on the T-shaped upper die plate 71 is replaced, after the replacement is completed, the T-shaped upper die plate 71 is pushed into the L-shaped guide rails 721 through the upper die handle 74, the positioning pins 722 are inserted into the L-shaped guide rails 721 from the side, so as to fix the T-shaped upper die plate 71 on the L-shaped guide rails 721, and the die locking screws 723 are tightened to lock the T-shaped upper die plate 71 on the lifting plate 6.

[0028] The lower die assembly 8 comprises a T-shaped lower die plate 81, a lower positioning and locking mechanism 82, a profiling bottom plate 83 and a lower die handle 84. The lower positioning and locking mechanism 82 is installed on the lower fixed plate 3, and the T-shaped lower die plate 81 capable of being quickly disassembled is installed on the lower positioning and locking mechanism 82. The structure of the lower positioning and locking mechanism 82 is the same as that of the upper positioning and locking mechanism 72. The position of the T-shaped lower die plate 81 is in vertical butt joint with the T-shaped upper die plate 71. The profiling bottom plate 83 for cooperating with the upper die cutter 73 to punch the material sheet is installed on the T-shaped lower die plate 81. The profiling hole 831 for the finished product to drop is formed on the profiling bottom plate. The discharge port 810 for the finished product to drop is formed on the T-shaped lower die plate 81 and the lower fixed plate 3. The material sheet is placed on the profiling bottom plate 83. The piston rod 91 of the air cylinder 9 is driven to extend downward, driving the lifting plate 6 to move downward on the guide column 5, driving the upper die cutter 73 to move downward. The upper die cutter 73 presses the material sheet with the profiling bottom plate 83. The upper die cutter 73 continues to move downward to punch the material sheet. After the punching is completed, the air cylinder 9 drives the lifting plate 6 to move upward, driving the upper die cutter 73 to move upward. The upper die cutter 73 leaves the profiling bottom plate 83. The finished product drops downward through the profiling hole 831 to the discharge port 810 and then falls into the material collecting box 2 below from the discharge port 810.

[0029] The safety protection assembly 10 comprises two safety baffle plates 101, straight grain knobs 102, door magnetic switches 103 and safety gratings 104. The safety baffle plates 101 are installed on both sides of the upper fixed plate 4 to prevent waste from splashing during punching and to ensure the safety of workers. Two limiting grooves 1011 parallel to each other are formed in the vertical direction of the safety baffle plate 101. The straight grain knobs 102 pass through the limiting grooves 1011 to install the safety baffle plates 101 on both sides of the upper fixed plate 4. The safety baffle plates 101 slide up and down within the range of the limiting grooves 1011 to open and close the lower fixed plate 3. The lower end of the safety baffle plate 101 and the lower fixed plate 3 are provided with the door magnetic switches 103 for controlling the opening and closing of the safety baffle plate 101. The safety baffle plate 101 is driven by manual or electric elements after the straight grain knobs 102 are loosened. The safety baffle plate 101 moves upward within the limiting grooves 1011, and the safety baffle plate 101 leaves the lower fixed plate 3. The door magnetic switch 103 is in an open state. To prevent accidents, the equipment stops working at this time. The safety baffle plate 101 moves downward within the limiting grooves 1011 until the lower end of the safety baffle plate 101 abuts against the lower fixed plate 3. The door magnetic switch 103 is closed. At this time, the equipment can work. The safety grating 104 is installed between the lower fixed plate 3 and the upper fixed plate 4 to monitor whether there is an object entering the equipment during the working of the equipment. If it is monitored that there is an object entering the equipment, the equipment stops urgently to avoid accidents.

[0030] The base 1 comprises a shell 11, a crossbar handle 12 and an operation button 13, the shell 11 is provided with the operation button 13 for operating the device at the front end, the operation button 13 comprises a double-hand starting button, an emergency stop button between the two double-hand starting buttons and a reset button, the crossbar handle 12 for carrying the device is installed on both sides of the shell 11, the material collecting box 2 for collecting finished products is installed at the rear end in the shell 11, the magnet for adsorbing the material collecting box 2 is installed in the shell 11, the material collecting box 2 is a cuboid, the cavity for collecting materials is formed in the cuboid, the handle 21 for pulling out the material collecting box 2 is installed on the outer end surface of the material collecting box 2, the material collecting box 2 can be pulled out of the shell 11 by holding the handle 21 outward, after the material collecting box 2 is pulled out, the handle 21 is held forward, and the material collecting box 2 is stably adsorbed in the shell 11 through magnetic attraction.

[0031] When the punching machine is working, the material sheet is placed on the profiling bottom plate 83, the door magnetic switch 103 is closed, the device is started through the operation button 13, the safety grating 104 is opened, the piston rod 91 of the cylinder 9 is driven to stretch downward, the lifting plate 6 is driven to move downward on the guide column 5, the upper die cutter 73 is driven to move downward, the upper die cutter 73 presses the material sheet together with the profiling bottom plate 83, the upper die cutter 73 continues to move downward, the material sheet is punched, after the punching is completed, the cylinder 9 drives the lifting plate 6 to move upward, the upper die cutter 73 is driven to move upward, the upper die cutter 73 leaves the profiling bottom plate 83, the finished product falls downward to the discharge port 810 through the profiling hole 831, and falls into the material collecting box 2 below from the discharge port 810, if an object enters the device during the punching process, the safety grating 104 detects and controls the operation button 13, so that the device stops the punching work, and the safety accident is avoided, after the danger is eliminated, the device is reset through the operation button 13, and the work is continued.

[0032] The punching machine with replaceable dies can quickly replace the dies, ensure the rigidity of the punching mechanism, ensure the machining precision, has double protection, is high in safety coefficient and convenient to take materials.

[0033] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures or equivalent process transformations obtained by using the utility model specification and drawing contents, or direct or indirect application in other related technical fields are also included in the patent protection range of the utility model.

Claims

1. A small-sized puncher with replaceable die, comprising a base (1), a lower fixed plate (3) mounted on the base (1), an upper fixed plate (4) mounted on the lower fixed plate (3) through a guide column (5), a pneumatic cylinder (9) mounted on the upper fixed plate (4), and a lifting plate (6) driven by the pneumatic cylinder (9), characterized in that: The upper die assembly (7) is installed on the lifting plate (6), and the lower die assembly (8) is installed on the lower fixed plate (3) and is in butt joint with the upper die assembly (7), the upper die assembly (7) comprises a T-shaped upper die plate (71) and an upper positioning and locking mechanism (72), the T-shaped upper die plate (71) is detachably installed on the upper positioning and locking mechanism (72), the upper positioning and locking mechanism (72) comprises L-shaped guide rails (721), positioning pins (722) and die locking screws (723), the two L-shaped guide rails (721) are symmetrically installed on the lifting plate (6), the opposite surfaces of the two L-shaped guide rails (721) are provided with installation grooves for slidingly installing the T-shaped upper die plate (71), the two sides of the T-shaped upper die plate (71) are slidingly clamped at the installation grooves, the outer sides of the vertical ends of the two L-shaped guide rails (721) are provided with the positioning pins (722) for positioning the T-shaped upper die plate (71) in the horizontal direction, the side ends of the T-shaped upper die plate (71) are provided with positioning holes matched with the positioning pins (722), and the horizontal ends of the two L-shaped guide rails (721) are provided with the die locking screws (723) for locking the T-shaped upper die plate (71) in the vertical direction.

2. A compact punch machine with replaceable die according to claim 1, characterized in that: The upper die assembly (7) further comprises an upper die cutter (73) and an upper die handle (74), the upper die cutter (73) is installed on the T-shaped upper die plate (71), the shape of the upper die cutter (73) is set as the shape of a product die, and the outer side of the T-shaped upper die plate (71) is provided with the upper die handle (74) for pulling the T-shaped upper die plate (71) during dismounting.

3. A compact punch machine with replaceable die according to claim 1, characterized in that: The lower die assembly (8) comprises an inverted T-shaped lower die plate (81), a lower positioning and locking mechanism (82), a profiling bottom plate (83) and a lower die handle (84), the structure of the lower positioning and locking mechanism (82) is the same as that of the upper positioning and locking mechanism (72), the inverted T-shaped lower die plate (81) is detachably installed on the lower positioning and locking mechanism (82), the position of the inverted T-shaped lower die plate (81) is in butt joint with the T-shaped upper die plate (71) in the vertical direction, the profiling bottom plate (83) is installed on the inverted T-shaped lower die plate (81) and is used for cooperating with the upper die cutter (73) to stamp a material sheet, the profiling bottom plate is provided with a profiling hole (831) for dropping a finished product, and the inverted T-shaped lower die plate (81) and the lower fixed plate (3) are provided with a discharge port (810) for dropping the finished product.

4. A compact punch machine with replaceable die according to claim 1, characterized in that: Also include safety guard assembly (10), the safety guard assembly (10) includes two safety baffle (101), straight grain knob (102), door magnetic switch (103) and safety grating (104), the safety baffle (101) is installed in the both sides of upper fixed plate (4), the safety baffle (101) is vertically direction and is provided with two limit slots (1011) parallel to each other, straight grain knob (102) passes through limit slot (1011) and installs safety baffle (101) in the both sides of upper fixed plate (4), safety baffle (101) slides up and down in the range of limit slot (1011), safety baffle (101) lower end and lower fixed plate (3) are installed for controlling safety baffle (101) opening and closing door magnetic switch (103), the lower fixed plate (3) and upper fixed plate (4) between install safety grating (104) for monitoring whether there is object to enter the equipment.

5. A compact punch machine with replaceable die according to claim 1, characterized in that: Also include the material collecting box (2) for collecting finished products, the material collecting box (2) is installed in the inside rear end of base (1), the magnet for adsorbing material collecting box (2) is installed in base (1), the material collecting box (2) is cuboid, and the cavity for collecting materials is set up in cuboid, the handle (21) for pulling material collecting box (2) is installed in the outer end surface of material collecting box (2).

6. A compact punch machine with replaceable die according to claim 5, characterized in that: The base (1) includes a shell (11), a crossbar handle (12) and an operation button (13), the shell (11) is provided with an operation button (13) at the front end, and the crossbar handle (12) for carrying the device is installed on both sides of the shell (11).

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