Safety protection device for punching machine

Abstract

The utility model discloses a safety protection device of a punching machine, and relates to the technical field of safety protection of punching machines. The device comprises a base and a protection plate, the top of the base is fixedly connected with a workbench, a sliding rod and a mounting plate, the top of the inner side of the workbench is provided with a stamping device, the bottom of the inner side of the workbench is provided with a placing table, the protection plate is in sliding connection with the sliding rod, and the rear end of the workbench is rotationally connected with a rotating shaft through a support. A motor is fixedly installed on the side face of the installation plate, and an output shaft of the motor is fixedly connected with a rotating shaft. The rapid cooling mechanism is arranged, so that in the process that the motor is started to drive the rotating shaft to rotate, and the rotating shaft rotates to drive a driving gear to be matched with a driven rack to drive a protection plate to descend; and through cooperation of a rotating gear, a toothed bar, a pressure bin and other assemblies, a water suction pipe sucks water in a water tank, and the water is sprayed to a placement table through a water spraying pipe to cool the stamped object.

Description

Technical Field

[0001] This utility model belongs to the field of punch press safety protection technology, and in particular relates to a punch press safety protection device. Background Technology

[0002] A punch press is a stamping press. In national production, stamping technology has become increasingly widely used due to its advantages over traditional machining, such as saving materials and energy, high efficiency, low operator skill requirements, and the ability to produce products that cannot be achieved through machining by using various molds.

[0003] The utility model with publication number CN222036611U discloses a safety protection device for a punch press, including a base, a punch press body and a protective component. The protective component includes a guide post, a sliding sleeve, a protective cover, a driving component and a buffer component. The guide post is fixedly connected to the base and is located on the side of the base close to the punch press body. The sliding sleeve is sleeved on the outside of the guide post and is slidably connected to the guide post. The protective cover is fixedly connected to the sliding sleeve.

[0004] In the aforementioned application document, by controlling the operation of the drive motor, the drive motor drives the shaft to rotate, and under the transmission of the gear and the rack, it drives the protective cover to move upward to the stamping area, so that the stamping area is covered and a protective barrier is formed. However, after the protective cover covers the stamping area, it will affect the heat dissipation of the product after stamping, making it inconvenient to remove it. Utility Model Content

[0005] The purpose of this invention is to provide a safety protection device for punch presses, which solves the existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a safety protection device for a punch press, comprising a base and a protective plate. A worktable, a slide rod, and a mounting plate are fixedly connected to the top of the base. A punching device is installed on the top inner side of the worktable, and a placement platform is installed on the bottom inner side of the worktable. The protective plate is slidably connected to the slide rod. A rotating shaft is rotatably connected to the rear end of the worktable via a bracket. A motor is fixedly mounted on the side of the mounting plate, and the output shaft of the motor is fixedly connected to the rotating shaft. A drive gear is fixedly connected to the surface of the rotating shaft. A driven rack is fixedly connected to the rear end of the protective plate. A rapid cooling mechanism is provided on the top of the base; the rapid cooling mechanism includes a pressure chamber, a water tank, and a rotating gear. The pressure chamber is internally equipped with a return spring. A piston rod is slidably connected to the pressure chamber via the return spring piston. A toothed rod is fixedly connected to the top of the piston rod. A water suction pipe is passed through and fixedly connected to the side of the pressure chamber. A water spray pipe is passed through and fixedly connected to the front of the pressure chamber. Both the water suction pipe and the water spray pipe are equipped with one-way valves. The water tank is fixedly connected to the top of the workbench. The end of the water suction pipe away from the pressure chamber is connected to the water tank and fixedly connected. A filter screen is installed at the end of the water suction pipe away from the pressure chamber. The end of the water spray pipe away from the pressure chamber is connected to the workbench and fixedly connected. The rotating gear is fixedly connected to the surface of the rotating shaft. An anti-clogging mechanism is provided on the side of the water tank.

[0008] Furthermore, both the driving gear and the driven rack are provided in two sets, and the two sets of driving gears mesh with the two sets of driven racks respectively. When the driving gear rotates, it will drive the protective plate to move up or down through the driven rack.

[0009] Furthermore, the rotating gear is an incomplete gear, and the teeth on the rack are matched with the teeth on the rotating gear. When the rotating gear rotates and its teeth mesh with the teeth on the rack, it will drive the rack to move upward.

[0010] Furthermore, the one-way valve in the water suction pipe is unidirectionally open to the inside of the pressure chamber, and the one-way valve in the water spray pipe is unidirectionally open to the worktable. When a negative pressure is formed in the pressure chamber, water in the pressure chamber will be drawn into the pressure chamber through the water suction pipe, and when the water in the water spray pipe is squeezed, it will be sprayed out through the water spray pipe.

[0011] Furthermore, the anti-clogging mechanism includes a pressure chamber and an eccentric ring. The pressure chamber is connected through and fixedly to the side of the water tank. One end of the pressure chamber is provided with an air bladder, and the other end of the pressure chamber is internally connected to a piston with a push rod. The bottom of the push rod is fixedly connected to a cleaning brush, and the eccentric ring is fixedly connected to the surface of the rotating shaft.

[0012] Furthermore, the eccentric ring is close to the airbag, and the airbag is initially in an inflated state. When the eccentric ring rotates with the shaft, it will repeatedly squeeze the airbag. When the airbag is squeezed, the air pressure inside it will enter the air pressure chamber and push the push rod to move downward.

[0013] Furthermore, the cleaning brush is initially close to the top of the filter screen, and its bristles clean the surface of the filter screen as it moves downwards.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model is equipped with a rapid cooling mechanism, which enables the motor to drive the rotating shaft to rotate. The rotating shaft drives the active gear to cooperate with the driven rack to lower the protective plate. At the same time, the rotating gear, rack, pressure chamber and other components work together to make the water suction pipe draw water from the water tank and spray it out onto the placement platform to cool the stamped items.

[0016] 2. This utility model has an anti-clogging mechanism, which enables the motor to drive the rotating shaft to rotate. When the shaft rotates, the cleaning brush will move downward repeatedly to clean the surface of the filter screen through the cooperation of components such as the eccentric ring, air bag, and air pressure chamber. This prevents the filter screen from becoming clogged after long-term use, which would affect the cooling of the stamped items.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional front view of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional rear view of the overall structure of this utility model;

[0021] Figure 3 This is a three-dimensional schematic diagram of the rapid cooling mechanism structure of this utility model;

[0022] Figure 4 This is a three-dimensional sectional view of the rapid cooling mechanism structure of this utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the anti-blocking mechanism structure of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Base; 2. Workbench; 3. Stamping device; 4. Placement platform; 5. Slide rod; 6. Protective plate; 7. Rotating shaft; 8. Mounting plate; 9. Motor; 10. Drive gear; 11. Driven rack; 12. Rapid cooling mechanism; 121. Pressure chamber; 122. Return spring; 123. Piston rod; 124. Gear rack; 125. Water suction pipe; 126. Water spray pipe; 127. Water tank; 128. Rotating gear; 129. Filter screen; 13. Anti-clogging mechanism; 131. Air pressure chamber; 132. Airbag; 133. Push rod; 134. Cleaning brush; 135. Eccentric ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5This utility model is a safety protection device for a punch press, including a base 1 and a protective plate 6. A worktable 2, a slide rod 5, and a mounting plate 8 are fixedly connected to the top of the base 1. A punching device 3 is installed on the top inner side of the worktable 2, and a placement platform 4 is installed on the bottom inner side of the worktable 2. The protective plate 6 is slidably connected to the slide rod 5. A rotating shaft 7 is rotatably connected to the rear end of the worktable 2 via a bracket. A motor 9 is fixedly installed on the side of the mounting plate 8, and the output shaft of the motor 9 is fixedly connected to the rotating shaft 7. A drive gear 10 is fixedly connected to the surface of the rotating shaft 7. A driven rack 11 is fixedly connected to the rear end of the protective plate 6. A rapid cooling mechanism 12 is installed on the top of the base 1. The rapid cooling mechanism 12 includes a pressure chamber 121, a water tank 127, and a rotating gear 128. A return spring 122 is installed inside the pressure chamber 121. Inside pressure chamber 121, piston rod 123 is slidably connected to piston via return spring 122. A toothed rod 124 is fixedly connected to the top of piston rod 123. A water suction pipe 125 is fixedly connected through and to the side of pressure chamber 121. A water spray pipe 126 is fixedly connected through and to the front of pressure chamber 121. Both water suction pipe 125 and water spray pipe 126 are equipped with one-way valves. Water tank 127 is fixedly connected to the top of workbench 2. The end of water suction pipe 125 away from pressure chamber 121 is fixedly connected to water tank 127. A filter screen 129 is provided at the end of water suction pipe 125 away from pressure chamber 121. The end of water spray pipe 126 away from pressure chamber 121 is fixedly connected to workbench 2. Rotating gear 128 is fixedly connected to the surface of rotating shaft 7. An anti-clogging mechanism 13 is provided on the side of water tank 127.

[0028] There are two sets of driving gears 10 and driven racks 11, and the two sets of driving gears 10 mesh with the two sets of driven racks 11 respectively. When the driving gears 10 rotate, they will drive the protective plate 6 to move up or down through the driven racks 11.

[0029] The rotating gear 128 is an incomplete gear, and the teeth on the rack 124 are matched with the teeth on the rotating gear 128. When the rotating gear 128 rotates and its teeth mesh with the teeth on the rack 124, it will drive the rack 124 to move upward.

[0030] The one-way valve inside the suction pipe 125 is for one-way flow into the pressure chamber 121, and the one-way valve inside the spray pipe 126 is for one-way flow into the worktable 2. When a negative pressure is formed in the pressure chamber 121, water will be drawn into the pressure chamber 121 through the suction pipe 125 and enter the pressure chamber 121. When the water in the spray pipe 126 is squeezed, it will be sprayed out through the spray pipe 126.

[0031] The anti-clogging mechanism 13 includes a pressure chamber 131 and an eccentric ring 135. The pressure chamber 131 is connected through and fixedly connected to the side of the water tank 127. An air bladder 132 is provided at one end of the pressure chamber 131. A push rod 133 is slidably connected to the piston inside the other end of the pressure chamber 131. A cleaning brush 134 is fixedly connected to the bottom of the push rod 133. The eccentric ring 135 is fixedly connected to the surface of the rotating shaft 7.

[0032] The eccentric ring 135 is close to the airbag 132, and the airbag 132 is initially in an inflated state. When the eccentric ring 135 rotates with the rotating shaft 7, it will repeatedly squeeze the airbag 132. When the airbag 132 is squeezed, the air pressure inside it will enter the air pressure chamber 131 and push the push rod 133 to move downward.

[0033] In its initial state, the cleaning brush 134 is close to the top of the filter screen 129. As the cleaning brush 134 moves downward, its bristles clean the surface of the filter screen 129.

[0034] A specific application of this embodiment is as follows: The item to be stamped is placed on the placement platform 4, and then the motor 9 is turned on to drive the rotating shaft 7 to rotate. The rotation of the rotating shaft 7 drives the drive gear 10 to rotate. The rotation of the drive gear 10, in conjunction with the driven rack 11, drives the protective plate 6 to move upward along the slide rod 5. At this time, the stamping area forms a closed state, which has a protective effect. Then, the stamping device 3 can be controlled to perform the stamping work. After the stamping is completed, the motor 9 is turned on to drive the rotating shaft 7 to reverse. The reverse rotation of the rotating shaft 7, through the drive gear 10 and the driven rack 11, drives the protective plate 6 to move downward along the slide rod 5 to open the stamping area. Then, the staff can take out the product. During the reverse rotation of the rotating shaft 7 driven by the motor 9, the rotating shaft 7 also drives the rotating gear 128 to rotate. When the rotating gear 128 rotates and its upper teeth mesh with the upper teeth of the gear 124, it drives the gear 124 to move upward. The upward movement of the gear 124 drives the piston rod 123 to move upward, and the return spring 122 is stretched. The upward movement of piston rod 123 creates a negative pressure in pressure chamber 121, drawing water from pressure chamber 121 through suction pipe 125. When rotating gear 128 disengages from toothed part and gear 124, return spring 122 rebounds, causing piston rod 123 and gear 124 to move downwards to restore their original positions. This compresses the water in pressure chamber 121, causing it to be sprayed through spray pipe 126 onto the finished product on top of placement platform 4 for cooling, thus forming a cycle. As eccentric ring 135 rotates with rotating shaft 7, it repeatedly compresses airbag 132. The compressed airbag 132 releases its internal air pressure into air chamber 131, pushing push rod 133 downwards. The downward movement of push rod 133 causes cleaning brush 134 to move downwards. As cleaning brush 134 moves downwards, its bristles clean the surface of filter screen 129, preventing filter screen 129 from becoming clogged over time and affecting the cooling of finished products.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A punch safety guard comprising a base (1) and a guard plate (6), characterised in that: The top of the base (1) is fixedly connected with a workbench (2), a sliding rod (5) and a mounting plate (8), the inner top of the workbench (2) is provided with a punching device (3), the inner bottom of the workbench (2) is provided with a placing table (4), the guard plate (6) is slidably connected with the sliding rod (5), the rear end of the workbench (2) is rotatably connected with a rotating shaft (7) through a support, the side of the mounting plate (8) is fixedly connected with a motor (9), the output shaft of the motor (9) is fixedly connected with the rotating shaft (7), the surface of the rotating shaft (7) is fixedly connected with a driving gear (10), the rear end of the guard plate (6) is fixedly connected with a driven rack (11), and the top of the base (1) is provided with a rapid cooling mechanism (12). The rapid cooling mechanism (12) comprises a pressure chamber (121), a water tank (127) and a rotating gear (128), the inside of the pressure chamber (121) is provided with a return spring (122), the inside of the pressure chamber (121) is slidably connected with a piston rod (123) through a piston of the return spring (122), the top of the piston rod (123) is fixedly connected with a tooth bar (124), the side of the pressure chamber (121) penetrates and is fixedly connected with a water suction pipe (125), the front end of the pressure chamber (121) penetrates and is fixedly connected with a water spraying pipe (126), the inside of the water suction pipe (125) and the water spraying pipe (126) is provided with a one-way valve, the water tank (127) is fixedly connected on the top of the workbench (2), one end of the water suction pipe (125) away from the pressure chamber (121) penetrates and is fixedly connected with the water tank (127), the one end of the water suction pipe (125) away from the pressure chamber (121) is provided with a filter screen (129), the one end of the water spraying pipe (126) away from the pressure chamber (121) penetrates and is fixedly connected with the workbench (2), and the rotating gear (128) is fixedly connected on the surface of the rotating shaft (7).

2. A punch press safety shield according to claim 1, wherein, The driving gear (10) and the driven rack (11) are both provided with two groups, and the two groups of driving gears (10) are respectively engaged with the two groups of driven racks (11).

3. A punch press safety shield according to claim 2, wherein, The rotating gear (128) is an incomplete gear, and the teeth on the tooth bar (124) are matched with the teeth on the rotating gear (128).

4. A punch press safety shield according to claim 3, wherein, The one-way valve in the water suction pipe (125) is one-way communicated to the inside of the pressure chamber (121), and the one-way valve in the water spraying pipe (126) is one-way communicated to the workbench (2).

5. A punch press safety shield according to claim 4, wherein, The anti-blocking mechanism (13) comprises an air pressure chamber (131) and an eccentric ring (135), the air pressure chamber (131) penetrates and is fixedly connected on the side of the water tank (127), one end of the air pressure chamber (131) is provided with an air bag (132), the inside of the other end of the air pressure chamber (131) is slidably connected with a push rod (133) through a piston, the bottom of the push rod (133) is fixedly connected with a cleaning brush (134), and the eccentric ring (135) is fixedly connected on the surface of the rotating shaft (7).

6. A punch press safety shield according to claim 5, wherein, The eccentric ring (135) is adjacent to the air bag (132), and the air bag (132) is in an inflated state in an initial state.

7. A punch press safety shield according to claim 6 wherein, The cleaning brush (134) is adjacent to the top of the filter screen (129) in an initial state.

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