Emergency shutdown device for production line

Abstract

The utility model discloses a production line emergency shutdown device which comprises a production line arranged in the left-right direction, a pull rope arranged along the production line, a pull rod connected with the right end of the pull rope, a fixing plate penetrated by the pull rod, and three pulleys located on the left side of the pull rod, close to the pull rod, sequentially arranged in the left-right direction and sequentially wound by the pull rope. The three pulleys are horizontally arranged in the front-back direction. And the top end of the rightmost pulley is flush with the height of the pull rod. According to the emergency shutdown device for the production line, the production line can be triggered to be shut down by pressing down the pull rope at any position of the production line after the production line breaks down or personnel are injured, so that loss or further injury is avoided; the situation that the production line cannot be effectively triggered to be shut down due to the fact that the pull rope is pulled in the wrong direction can be avoided, and then emergency shut-down of the production line is delayed.

Description

Technical Field

[0001] The utility model relates to an emergency shutdown device for a production line. Background Art

[0002] Chinese Patent with application number 201920667605.4 discloses an emergency shutdown device for a production line. It deploys a pull rope along the production line. After a failure occurs on the production line or there is personal injury, operators at any position on the production line can immediately pull the pull rope along the direction of the pull rope layout to trigger the shutdown of the production line, avoiding losses or further injuries.

[0003] The emergency shutdown device for the production line of this patent includes: a production line arranged in the left-right direction, a pull rope deployed along the production line (i.e., horizontally placed in the left-right direction) and in a tensioned state, a pull rod connected to the right end of the pull rope and horizontally placed in the left-right direction, a vertically arranged fixing plate penetrated by the pull rod and slidably matched with the pull rod, a stop block arranged on the pull rod and abutted against the left side wall of the fixing plate, a metal block arranged at the right end of the pull rod, a spring sleeved on the pull rod and compressed between the fixing plate and the metal block, a proximity switch sensor arranged on the right side of the metal block for sensing the metal block, and a production line master control device electrically connected to the proximity switch sensor.

[0004] The working principle of the emergency shutdown device for the production line of this patent includes: when it is necessary to emergently shut down the production line, pull the pull rope along the direction of the pull rope layout (the pull rope is horizontally placed in the left-right direction) at any position on the production line, specifically pull the pull rope to the left. The pull rope drives the pull rod and the metal block to move to the left, causing the spring to contract, increasing the distance between the metal block and the proximity switch sensor. The production line master control device receives the sensing signal of the proximity switch sensor and issues an order to shut down the production line, shutting down the production line; after the production line is shut down, release the pull rope, and under the action of the spring force, the pull rod and the metal block move to the right to reset.

[0005] Although the emergency shutdown device for the production line of this patent can trigger the shutdown of the production line by pulling the pull rope along the direction of the pull rope layout at any position on the production line after a failure occurs on the production line or there is personal injury. However, when the operator pulls the pull rope along the direction of the pull rope layout (i.e., in the left-right direction), it is possible that in a hurry, the wrong direction may be pulled, that is, the pull rope that should originally be pulled to the left is wrongly pulled to the right in a hurry, so that the shutdown of the production line cannot be effectively triggered, and thus the emergency shutdown of the production line may be delayed. Summary of the Invention

[0006] To solve the defects in the prior art, the present utility model provides an emergency shutdown device for a production line, comprising: a production line arranged in the left-right direction, a pulling rope arranged along the production line (i.e., arranged in the left-right direction) and in a tensioned state, a pull rod connected to the right end of the pulling rope and horizontally placed in the left-right direction, a vertically arranged fixing plate penetrated by the pull rod and slidably engaged with the pull rod, a stopper arranged on the pull rod and abutted against the left side wall of the fixing plate, a metal block arranged at the right end of the pull rod, a spring sleeved on the pull rod and compressed between the fixing plate and the metal block, a proximity switch sensor arranged on the right side of the metal block and used to sense the metal block, a production line total control device electrically connected to the proximity switch sensor, and three pulleys arranged in the left-right direction in sequence and close to the pull rod on the left side of the pull rod and successively bypassed by the pulling rope; the three pulleys are all horizontally placed in the front-back direction; for the rightmost pulley, its top is at the same height as the pull rod.

[0007] Preferably, vertical shaft frames are respectively connected to both axial ends of the three pulleys.

[0008] Preferably, the bottom ends of the shaft frames are connected to the same horizontally placed support plate.

[0009] Preferably, the right end of the support plate is connected to the bottom end of the fixing plate through a vertical connecting rod.

[0010] Preferably, the centers of the three pulleys are at the same height.

[0011] Preferably, the outer diameters of the three pulleys are the same.

[0012] The advantages and beneficial effects of the present utility model are as follows: An emergency shutdown device for a production line is provided, which can, after a failure occurs in the production line or personnel are injured, trigger the shutdown of the production line by pressing down the pulling rope at any position on the production line, avoiding losses or further injuries; it can also prevent the pulling rope from being pulled in the wrong direction and thus unable to effectively trigger the shutdown of the production line, thereby avoiding delaying the emergency shutdown of the production line.

[0013] The present utility model is a partial improvement on the emergency shutdown device for a production line disclosed in the Chinese patent with the application number 201920667605.4. mainly by adding three pulleys, etc., and changing the operation of pulling the pulling rope to pressing down the pulling rope, so as to avoid pulling the pulling rope in the wrong direction in a hurry (that is, originally the pulling rope should be pulled to the left, but in a hurry, it is wrongly pulled to the right), preventing the pulling rope from being pulled in the wrong direction and thus unable to effectively trigger the shutdown of the production line, thereby avoiding delaying the emergency shutdown of the production line. The present utility model does not improve other parts of this patent. For other parts of the emergency shutdown device for a production line, reference can be made to the specification of this patent, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE INVENTION

[0015] The following will further describe the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model.

[0016] The technical solution of the specific implementation of the present utility model is as follows:

[0017] As Figure 1 shown, an emergency shutdown device for a production line includes: a production line arranged in the left - right direction, a pull rope 2 arranged along the production line (i.e., arranged in the left - right direction) and in a tensioned state, a pull rod 3 connected to the right end of the pull rope 2 and horizontally arranged in the left - right direction, a vertically - arranged fixing plate 10 penetrated by the pull rod 3 and slidably matched with the pull rod 3, a stop block 4 arranged on the pull rod 3 and abutted against the left side wall of the fixing plate 10, a metal block 6 arranged at the right end of the pull rod 3, a spring 5 sleeved on the pull rod 3 and compressed between the fixing plate 10 and the metal block 6, a proximity switch sensor 7 arranged on the right side of the metal block 6 and used to sense the metal block 6, a production line total control device electrically connected to the proximity switch sensor 7, three pulleys 11 located on the left side of the pull rod 3 and close to the pull rod 3, arranged in sequence in the left - right direction, all horizontally arranged in the front - back direction and sequentially bypassed by the pull rope 2, vertical shaft frames 12 respectively connected to both axial ends of each pulley 11 (the pulley 11 is rotatably connected to the shaft frame 12), a horizontally - arranged support plate 13 with its top surface connected to the bottom ends of each shaft frame 12, and a vertical connecting rod 14 connecting the right end of the support plate 13 to the bottom end of the fixing plate 10; the outer diameters of the three pulleys 11 are the same; the centers of the three pulleys 11 are at the same height; for the right - most pulley 11, its top end is at the same height as the pull rod 3.

[0018] The working principle of the emergency shutdown device for the production line of the present utility model includes: when it is necessary to emergently shut down the production line, press the pull rope 2 downward at any position on the production line (the pull rope 2 can be pressed downward at any position on the left side of the three pulleys 11). Through the guidance of the three pulleys 11, the pull rope 2 on the right side of the three pulleys 11 can be made to move horizontally to the left, and then the pull rod 3 and the metal block 6 can be effectively and smoothly driven to move to the left, causing the spring 5 to contract, increasing the distance between the metal block 6 and the proximity switch sensor 7 (the horizontal distance between the right - most pulley 11 and the pull rod 3 is adapted to the distance when the metal block 6 moves leftward to trigger the proximity switch sensor 7). The production line total control device receives the induction signal of the proximity switch sensor 7 and issues an order to shut down the production line, shutting down the production line; after the production line is shut down, release the pull rope 2, and under the elastic force of the spring 5, the pull rod 3 and the metal block 6 move rightward to reset.

[0019] As can be seen from the above, the emergency shutdown device for the production line of the present utility model can, after a failure occurs in the production line or personal injury, trigger the shutdown of the production line by pressing the pull rope 2 at any position on the production line, avoiding losses or further injuries.

[0020] The present utility model is a partial improvement on the production line emergency shutdown device disclosed in the Chinese patent with the application number 201920667605.4. Specifically, three pulleys 11 are added, etc., and pulling the pull rope 2 to the left is changed to pressing down the pull rope 2. This can avoid pulling the pull rope 2 in the wrong direction in a hurry (that is, originally the pull rope 2 should be pulled to the left, but it is wrongly pulled to the right in a hurry), and prevent the production line from not being effectively triggered to shut down due to the wrong direction of pulling the pull rope 2, thereby avoiding delaying the emergency shutdown of the production line. The present utility model does not improve other parts of this patent. For other parts of the production line emergency shutdown device, reference can be made to the specification of this patent, which will not be elaborated here.

[0021] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. An emergency shutdown device for a production line, comprising: A production line arranged in the left - right direction, a pulling rope arranged along the production line, a pull rod connected to the right end of the pulling rope, and a fixing plate penetrated by the pull rod; it is characterized in that it further includes: three pulleys located on the left side of the pull rod and close to the pull rod, arranged in sequence in the left - right direction and successively bypassed by the pulling rope; these three pulleys are all horizontally placed in the front - back direction; for the right - most pulley, its top is at the same height as the pull rod; the axial two ends of the three pulleys are respectively connected with vertically - placed shaft frames; the bottom ends of each shaft frame are connected to the same horizontally - placed support plate; the right end of the support plate is connected to the bottom end of the fixing plate through a vertically - placed connecting rod.

2. The emergency shutdown device for the production line according to claim 1, wherein The axles of the three pulleys are at the same height.

3. The emergency shutdown device for the production line according to claim 1, wherein, The outer diameters of the three pulleys are the same.

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