Iron sheet punch safety device

Abstract

This utility model relates to a safety protection device for a sheet metal punching press. The sheet metal punching press has first grating sensors on both sides and a second grating sensor behind the punching machine. The transmitters of the first and second grating sensors are located beside the loading rack and behind the punching machine, respectively. Receivers for the first and second grating sensors are located on opposite sides behind the punching machine. Protective plates are installed on both sides of the conveyor table. This utility model has a simple structure, reasonable design, is convenient and practical, and provides good protection. It can prevent workers from entering the equipment during operation, improve production safety, protect worker safety, and avoid safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of punch presses, and in particular to a safety protection device for sheet metal punch presses. Background Technology

[0002] The can lid manufacturing process requires feeding sheet metal into a sheet metal punch press to punch out a rough can lid blank, which is then subjected to subsequent forming processes. The sheet metal punch press consists of a stamping machine, a conveyor platform, and a loading machine. If the sheet metal punch press malfunctions, workers need to climb onto the equipment for repairs. However, in actual operation, workers often make operational errors by entering the machine for repairs before it has been stopped, posing a significant safety hazard. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a simple, reasonable, convenient and practical safety protection device for sheet metal punching machines, which has a good protective effect and can prevent workers from entering the equipment during operation, thereby improving production safety.

[0004] This utility model is implemented using the following scheme: a safety protection device for a sheet metal punch press, wherein a first grating sensor is provided on both sides of the sheet metal punch press, and a second grating sensor is provided behind the punching machine of the sheet metal punch press; the transmitter of the first grating sensor is located beside the loading rack of the sheet metal punch press, the transmitter of the first grating sensor is located beside the rear of the punching machine of the sheet metal punch press, and the receiver of the first grating sensor, the receiver of the second grating sensor, and the transmitter are respectively located on both sides behind the punching machine of the sheet metal punch press; protective plates are provided on both sides of the conveyor table of the sheet metal punch press.

[0005] Furthermore, the protective plate includes a fixed protective plate, and a channel is left between the fixed protective plate and the stamping machine of the sheet metal punching machine. A retractable movable protective plate is connected to the rear end of the fixed protective plate to block the channel.

[0006] Furthermore, the movable protective plate and the fixed protective plate are slidably connected. The movable protective plate is provided with rollers on its upper and lower sides, and the fixed protective plate is provided with grooved plates on its upper and lower sides that cooperate with the rollers.

[0007] Furthermore, a push-pull electromagnet is provided on the upper rear side of the fixed protective plate to block the movable protective plate and limit its sliding and retraction.

[0008] Furthermore, the fixed protective plate is fixedly connected to the side of the conveyor table of the sheet metal punching machine by a fixed bracket.

[0009] Furthermore, both the fixed protective plate and the movable protective plate have perforated holes.

[0010] Furthermore, the sheet metal punching machine is provided with vertical rods on both sides for mounting the first grating sensor. The first grating sensor is connected to the vertical rods via a first bracket, and the first bracket, the vertical rods, and the first grating sensor are connected by screws.

[0011] Furthermore, the second grating sensor is connected to the stamping machine of the sheet metal punching machine via a second bracket, and the second bracket is connected to the stamping machine and the second grating sensor via screws.

[0012] Furthermore, it also includes a controller for controlling the operation of the sheet metal punching machine, wherein the first grating sensor, the second grating sensor, and the push-pull electromagnet are electrically connected to the controller.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The safety protection device for sheet metal punching machines of the present invention has a simple structure, reasonable design, is convenient and practical, and has a good protective effect. It can prevent workers from entering the equipment during operation, improve production safety, protect workers' personal safety, and avoid safety hazards.

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through specific embodiments and related drawings. Attached Figure Description

[0015] Figure 1 This is a side view of an embodiment of the present utility model;

[0016] Figure 2 This is a top view of an embodiment of the present utility model;

[0017] The following are the labels in the diagram: 100-Sheet metal punch press, 110-Punching machine, 120-Conveyor table, 130-Loading rack, 200-First grating sensor, 300-Second grating sensor, 400-Protective plate, 410-Fixed protective plate, 420-Modible protective plate, 430-Channel plate, 440-Push-pull electromagnet, 450-Fixed bracket, 500-Vertical rod, 510-First bracket, 600-Second bracket, 700-Channel. Detailed Implementation

[0018] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] like Figures 1-2 As shown, a safety protection device for a sheet metal punch press is disclosed. The sheet metal punch press 100 has first grating sensors 200 on both sides and a second grating sensor 300 behind the punching machine 110. The transmitters of the first and second grating sensors are located beside the loading rack 130 and the rear side of the punching machine, respectively. The receivers of the first and second grating sensors are located on both sides behind the punching machine. Protective plates 400 are provided on both sides of the conveyor table 120 of the sheet metal punch press 100. This utility model's protective device has dual protection functions. Firstly, the protective plates prevent workers from entering the equipment during processing. Secondly, multiple sets of grating sensors form a relatively closed protective ring in three directions (left, right, and rear) around the sheet metal punch press, automatically detecting worker entry and controlling the equipment to stop and issue an alarm.

[0021] This protective device has a simple structure, reasonable design, is convenient and practical, and has a good protective effect. It can prevent workers from entering the equipment during operation, improve production safety, protect workers' personal safety, and avoid safety hazards.

[0022] In this embodiment, the protective plate 400 includes a fixed protective plate 410, with a channel 700 between the fixed protective plate 410 and the stamping machine of the sheet metal punching machine. A retractable movable protective plate 420 is connected to the rear end of the fixed protective plate to block the channel. When the equipment is working, the movable protective plate 420 extends to block the channel to prevent personnel from entering. When it is necessary to stop the machine for maintenance, the movable protective plate 420 is retracted to leave a channel for personnel to enter.

[0023] In this embodiment, the movable protective plate and the fixed protective plate are slidably connected. The upper and lower sides of the movable protective plate are provided with rollers (not shown in the figure), and the upper and lower sides of the fixed protective plate are provided with grooved plates 430 that cooperate with the rollers. The grooved plates are provided with guide channels.

[0024] In this embodiment, a push-pull electromagnet 440 is provided on the upper rear side of the fixed protective plate to block the movable protective plate and limit its sliding and retraction. When the equipment is running, the push-pull electromagnet 440 is energized, and the push-pull rod of the push-pull electromagnet 440 extends to block the movable protective plate, preventing it from being pushed in, and ensuring that the passage is blocked when the equipment is running, preventing workers from entering.

[0025] In this embodiment, the fixed protective plate is fixedly connected to the side of the conveyor table of the sheet metal punching machine by a fixed bracket 450.

[0026] In this embodiment, both the fixed protective plate and the movable protective plate have perforated holes.

[0027] In this embodiment, vertical rods 500 for mounting the first grating sensor are provided on both sides of the sheet metal punch. The first grating sensor is connected to the vertical rods via a first bracket 510. The first bracket is connected to the vertical rods and the first grating sensor via screws. The first bracket is L-shaped.

[0028] In this embodiment, the second grating sensor is connected to the stamping machine of the sheet metal punching machine via the second bracket 600. The second bracket is connected to the stamping machine and the second grating sensor by screws. The second bracket is L-shaped.

[0029] In this embodiment, a controller for controlling the operation of the sheet metal punching machine is also included. The first grating sensor, the second grating sensor, and the push-pull electromagnet are electrically connected to the controller, which is also electrically connected to an alarm. The circuit structure and circuit principle involved in this utility model are all prior art and will not be described in detail here.

[0030] Working process: When the equipment is running, when personnel enter the equipment from the left, right or rear of the sheet metal punching machine, the grating sensor will detect the personnel entering, and then control the controller to stop the equipment and activate the alarm. At this time, the push-pull rod of the push-pull electromagnet 440 extends to block the movable protective plate and prevent it from being pushed in. After the equipment stops, the push-pull rod of the push-pull electromagnet 440 retracts, releasing the obstruction of the movable protective plate, and the movable protective plate can slide and retract.

[0031] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0032] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0033] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0034] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A safety guard for a sheet iron punch press, characterized in that: The sheet metal punch press is equipped with a first grating sensor on each side, and a second grating sensor is located behind the punching machine of the sheet metal punch press. The transmitter of the first grating sensor is located next to the loading rack of the sheet metal punch press, and the transmitter of the second grating sensor is located next to the punching machine of the sheet metal punch press. The receivers of the first grating sensor, the receivers of the second grating sensor, and the transmitter are located on both sides behind the punching machine of the sheet metal punch press. Protective plates are provided on both sides of the conveyor table of the sheet metal punch press.

2. The safety protection device for sheet metal punching machines according to claim 1, characterized in that: The protective plate includes a fixed protective plate, and a channel is left between the fixed protective plate and the stamping machine of the sheet metal punching machine. A retractable and movable protective plate is connected to the rear end of the fixed protective plate to block the channel.

3. The safety protection device for sheet metal punching machines according to claim 2, characterized in that: The movable protective plate and the fixed protective plate are slidably connected. The movable protective plate is provided with rollers on its upper and lower sides, and the fixed protective plate is provided with grooved plates on its upper and lower sides that cooperate with the rollers.

4. The safety protection device for sheet metal punching machines according to claim 2, characterized in that: The upper rear side of the fixed protective plate is provided with a push-pull electromagnet to block the movable protective plate and limit its sliding and retraction.

5. The safety protection device for sheet metal punching machines according to claim 2, characterized in that: The fixed protective plate is fixedly connected to the side of the conveyor table of the sheet metal punching machine by a fixed bracket.

6. The safety protection device for sheet metal punching machines according to claim 2, characterized in that: Both the fixed and movable protective plates have perforations.

7. The safety protection device for sheet metal punching machines according to claim 1, characterized in that: The sheet metal punching machine has vertical rods on both sides for mounting the first grating sensor. The first grating sensor is connected to the vertical rods via a first bracket. The first bracket, the vertical rods, and the first grating sensor are connected by screws.

8. The safety protection device for sheet metal punching machines according to claim 1, characterized in that: The second grating sensor is connected to the stamping machine of the sheet metal punching machine via a second bracket, and the second bracket is connected to the stamping machine and the second grating sensor via screws.

9. The safety protection device for sheet metal punching machines according to claim 4, characterized in that: It also includes a controller for controlling the operation of the sheet metal punching machine, wherein the first grating sensor, the second grating sensor, and the push-pull electromagnet are electrically connected to the controller.

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