Safety door opening and closing device of recoiling unit

Abstract

The utility model discloses an opening and closing device for a safety door of a recoiling unit, which relates to the technical field of protective devices and comprises a lower screen plate, an upper screen plate is arranged above the lower screen plate, a connector is arranged between the top of the lower screen plate and one end of the upper screen plate, basic lower protection is formed by the lower screen plate, basic upper protection is formed by the upper screen plate, and the connector is connected with the lower screen plate. The lower screen plate is fixed differently, the upper screen plate can be opened when a worker assists in wearing by matching the connector with the lower screen plate, and is closed and limited when the connector is matched with the first limiter after the worker assists in wearing, so that the safe opening and closing effect is achieved as required, and the personal safety is ensured; and when the upper net plate is opened, the angle of the opened upper net plate can be limited by matching with the use of a limiter II when a worker assists in wearing, so that the normal operation of the worker during assisting in wearing is prevented from being influenced by rebounding of the upper net plate through the connector, and an auxiliary protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective devices, and particularly relates to a safety door opening and closing device for a recoiling unit. Background Technique

[0002] During the production process of the recoiling unit in the cold rolling mill, the smooth progress of the threading process is directly related to the overall production efficiency and product quality. However, when the strip steel passes through the turning roller at the tail outlet and rises along the swing guide plate to the coiler, it often encounters threading failure due to problems such as the self-weight of the strip steel, poor strip shape (such as wavy edges, sickle bends), or warping. This not only forces the operator to make multiple threading attempts, reducing the production efficiency, but also increases the production cost and energy consumption.

[0003] In response to this challenge, the existing treatment methods mainly rely on the operator to use various tools for assistance during the threading process to correct the strip path or prevent it from sagging.

[0004] The inventor found the following problems in the prior art that have not been well solved during the implementation of this solution: This method is restricted in actual operation, especially the height and fixity of the safety net, which greatly limits the flexibility and operation space of the operator, resulting in poor threading assistance effect and even possible safety accidents. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a safety door opening and closing device for a recoiling unit, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A safety door opening and closing device for a recoiling unit, including a lower mesh plate, an upper mesh plate is arranged above the lower mesh plate, a connector is arranged between the top of the lower mesh plate and one end of the upper mesh plate, a limiter two is arranged at a position on one side of the connector of the upper mesh plate, a limiter one is arranged at the top of the lower mesh plate, the limiter one is located at one end of the upper mesh plate away from the connector, the limiter one includes a large square tube and a small square tube, the small square tube is fixed at one end of the bottom of the upper mesh plate away from the connector, the large square tube is welded to the top of the lower mesh plate, a through groove is drilled at one end of the large square tube close to the small square tube, an adjustment groove is drilled at one end of the large square tube away from the through groove, an L-shaped block is inserted into the adjustment groove, a plug block is fixed at one end of the L-shaped block close to the small square tube, the plug block is in through communication with the through groove, a spring is fixed at the upper side wall of the L-shaped block close to the plug block, and the spring is fixed to the upper inner side wall of the large square tube close to the through groove. The connector includes a positioning rod, two sleeves are sleeved and rotated on the positioning rod, the limiter two includes a back plate, sliding cylinders are fixed to both the top and the bottom of the back plate, an intermediate cylinder is fixed at a position between the sliding cylinders of the back plate, a through cavity is drilled through one side wall of the intermediate cylinder, a hanging cavity is drilled at the top of the other side wall of the intermediate cylinder, a blocking rod is inserted through between the intermediate cylinder and the lower sliding cylinder, and a hanging handle is fixed at one end of the blocking rod.

[0008] Preferably, the positioning rod is fixed to the top of the lower mesh plate, and the support plates are all fixed to the side wall of the upper mesh plate at one end away from the limiter one.

[0009] Preferably, support plates are fixed to the outer wall of the positioning rod below the support plates.

[0010] Preferably, one end of the plug block passing through the through groove is inserted into the interior of the small square tube.

[0011] Preferably, an L-shaped dial plate is fixed to one side of the L-shaped block away from the plug block, and one end of the L-shaped dial plate away from the L-shaped block is located outside the large square tube.

[0012] Preferably, the back plate is welded to the top end of the lower mesh plate.

[0013] Preferably, the outer diameter dimension of the hanging handle is smaller than the distance dimension between the inner walls on both sides of the through cavity and the hanging cavity.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. A basic lower protection is formed by the lower mesh plate, and a basic upper protection is formed by the upper mesh plate. The lower mesh plate is fixed differently. The upper mesh plate can be opened with the assistance of workers when used in combination with the lower mesh plate through the connector, and after the auxiliary wearing is completed, it can be closed and limited when used in combination with the limiter one through the connector, achieving the safety opening and closing effect as needed and ensuring personal safety.

[0016] 2. When the upper net plate is opened, by using the limiter two in combination, when the staff is assisting in wearing, the angle of the opened upper net plate can be limited, avoiding its rebound through the connector and affecting the normal operation during the staff's assisting in wearing, thus achieving the effect of auxiliary protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a safety door opening and closing device for a recoiling unit of the present utility model;

[0018] Figure 2 is a schematic structural diagram during the auxiliary wearing of a safety door opening and closing device for a recoiling unit of the present utility model;

[0019] Figure 3 is an exploded structural schematic diagram of the first limiter of a safety door opening and closing device for a recoiling unit of the present utility model after sectioning;

[0020] Figure 4 is a separated structural schematic diagram of the second limiter of a safety door opening and closing device for a recoiling unit of the present utility model;

[0021] Figure 5 is an enlarged structural schematic diagram of part A of a safety door opening and closing device for a recoiling unit of the present utility model.

[0022] In the figure: 1, lower net plate; 2, upper net plate; 3, first limiter; 31, large square tube; 311, through groove; 312, adjustment groove; 32, L-shaped block; 33, insertion block; 34, spring; 35, small square tube; 36, L-shaped dialing plate; 4, connector; 41, positioning rod; 42, support plate; 43, sleeve; 5, second limiter; 51, back plate; 52, sliding cylinder; 53, intermediate cylinder; 54, through cavity; 55, hanging cavity; 56, blocking rod; 57, hanging handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Such as Figures 1-5As shown in the figure, a safety door opening and closing device for a recoiling unit includes a lower mesh plate 1. Above the lower mesh plate 1, there is an upper mesh plate 2. Between the top of the lower mesh plate 1 and one end of the upper mesh plate 2, there is a connector 4. At a position on the side of the upper mesh plate 2 where the connector 4 is located, there is a second limiter 5. On the top of the lower mesh plate 1, there is a first limiter 3. The first limiter 3 is located at the end of the upper mesh plate 2 far from the connector 4. The first limiter 3 includes a large square tube 31 and a small square tube 35. The small square tube 35 is fixed to the bottom of the upper mesh plate 2 at the end far from the connector 4. The large square tube 31 is welded to the top of the lower mesh plate 1. At one end of the large square tube 31 close to the small square tube 35, there is a through groove 311. At the end of the large square tube 31 far from the small square tube 35 where the through groove 311 is located, there is an adjustment groove 312. Inside the adjustment groove 312, there is an L-shaped block 32 inserted. At one end of the L-shaped block 32 close to the small square tube 35, there is an insertion block 33. The insertion block 33 is in through communication with the through groove 311. Above the side wall of the L-shaped block 32 close to the insertion block 33, there is a spring 34 fixed. The spring 34 is fixed to the upper inner side wall of the large square tube 31 close to the through groove 311. The connector 4 includes a positioning rod 41. Two sleeves 43 are sleeved and rotatable on the positioning rod 41. The second limiter 5 includes a back plate 51. At the top and bottom of the back plate 51, there are sliding cylinders 52 fixed. At the position between the sliding cylinders 52 of the back plate 51, there is an intermediate cylinder 53 fixed. On one side wall of the intermediate cylinder 53, there is a through cavity 54 drilled through. At the top of the other side wall of the intermediate cylinder 53, there is a hanging cavity 55 drilled. Between the intermediate cylinder 53 and the lower sliding cylinder 52, there is a stop rod 56 inserted through. At one end of the stop rod 56, there is a hanging handle 57 fixed.

[0025] In this embodiment, the positioning rod 41 is fixed to the top of the lower mesh plate 1, and the support plates 42 are all fixed to the side wall of the upper mesh plate 2 at the end far from the first limiter 3.

[0026] In this embodiment, on the outer wall of the positioning rod 41 located below the support plates 42, there are support plates 42 fixed.

[0027] In this embodiment, the end of the insertion block 33 passing through the through groove 311 is inserted into the inside of the small square tube 35.

[0028] In this embodiment, on the side of the L-shaped block 32 far from the insertion block 33, there is an L-shaped dial 36 fixed. The end of the L-shaped dial 36 far from the L-shaped block 32 is located outside the large square tube 31.

[0029] In this embodiment, the back plate 51 is welded to the top end of the lower mesh plate 1.

[0030] In this embodiment, the outer diameter dimension of the hanging handle 57 is smaller than the distance dimension between the two inner side walls of the through cavity 54 and the hanging cavity 55.

[0031] Working principle: The basic lower protection is formed by the lower net plate 1, and the basic upper protection is formed by the upper net plate 2. The lower net plate 1 is fixed differently. The upper net plate 2 can be opened when assisted by the staff to wear through the connector 4 in cooperation with the lower net plate 1, and after the assisted wearing is completed, it can be closed and limited through the connector 4 in cooperation with the limiter 1 3, achieving the safety opening and closing effect as needed, ensuring personal safety. When the upper net plate 2 is opened, through the use of the limiter 2 5, when the staff is assisted to wear, the angle of the opened upper net plate 2 can be limited, preventing it from rebounding through the connector 4 and affecting the normal operation during the staff's assisted wearing, playing an auxiliary protection effect;

[0032] Usage process:

[0033] Figure 1 As shown, pull out the L-shaped dial 36 outward, drive the through slot 311 to be pulled out of the small square tube 35 through the L-shaped block 32, so that the upper net plate 2 can be opened by the rotation of the support plate 42 and the positioning rod 41. After opening, rotate the upper net plate 2 to Figure 2 the position shown. Pull up the stop rod 56, so that the hanging handle 57 penetrates through the through cavity 54, rises above the middle cylinder 53, and rotate the stop rod 56, so that the hanging handle 57 rotates from one side of the through cavity 54 to one side of the hanging cavity 55 and falls, and finally the hanging handle 57 hangs in the hanging cavity 55 and limits the height of the stop rod 56. At this time, the top of the stop rod 56 will penetrate through the upper sliding cylinder 52, and the horizontality of the top of the stop rod 56 will be above the bottom horizontal line of the upper net plate 2. When the upper net plate 2 rebounds, it will be blocked by the stop rod 56, preventing it from rebounding to its original position and affecting the normal work of the staff;

[0034] Closing process:

[0035] Recover the stop rod 56 below the horizontal line of the upper net plate 2, pull back the L-shaped dial 36 to drive the through slot 311 to be pulled back and retracted into the through slot 311. The upper net plate 2 rotates through the connector 4 to be perpendicular to the lower net plate 1. The position of the small square tube 35 matches that of the through slot 311. After releasing the L-shaped dial 36, the through slot 311 is inserted into the small square tube 35 after passing through the through slot 311 due to the pulling force of the spring 34 on the L-shaped block 32, and limits the upper net plate 2, thus completing the closing work. And after closing, it is necessary to gently push the upper net plate 2 to ensure that the through slot 311 has been inserted into the small square tube 35.

[0036] The circuits, electronic components and control modules involved are all existing technologies, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve improvements to software and methods.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed for the present utility model is defined by the appended claims and their equivalents.

Claims

1. A safety door opening and closing device for a rewinding unit, comprising a lower mesh plate (1), characterized in that: An upper plate (2) is provided above the lower plate (1), a connector (4) is provided between the top of the lower plate (1) and one end of the upper plate (2), a second stopper (5) is provided on the upper plate (2) at a position on one side of the connector (4), a first stopper (3) is provided on the top of the lower plate (1), the first stopper (3) is located at an end of the upper plate (2) away from the connector (4), the first stopper (3) comprises a large square tube (31) and a small square tube (35), the small square tube (36) The large square tube (31) is welded to the top of the lower mesh plate (1), and a through groove (311) is bored at one end of the large square tube (31) close to the small square tube (35). An adjustment groove (312) is bored at one end of the large square tube (31) close to the small square tube (35). An L-shaped block (32) is inserted into the adjustment groove (312). The L-shaped block (32) is close to the small square tube (35). ) is fixed with an insert block (33) at one end, the insert block (33) is in communication with the through slot (311), a spring (34) is fixed to the upper side wall of the L-shaped block (32) near the insert block (33), the spring (34) is fixed to the upper inner side wall of the large square tube (31) near the through slot (311), the connector (4) comprises a positioning rod (41), two sleeves (43) are rotatably sleeved on the positioning rod (41), the second stopper (5) comprises a back plate (51 ), a slide cylinder (52) is fixed at the top and bottom of the back plate (51), an intermediate cylinder (53) is fixed at the position of the back plate (51) between the slide cylinders (52), a through cavity (54) is bored through a side wall of one side of the intermediate cylinder (53), a hanging cavity (55) is bored through the top of the side wall of the other side of the intermediate cylinder (53), a stop rod (56) is inserted through and between the intermediate cylinder (53) and the lower slide cylinder (52), and a hanging handle (57) is fixed to one end of the stop rod (56).

2. A rewinding unit safety door opening and closing device according to claim 1, characterized in that: The positioning rod (41) is fixed to the top of the lower mesh plate (1), and the supporting plate (42) is fixed to the side wall of the upper mesh plate (2) at one end away from the stopper (3).

3. A rewinding unit safety door opening and closing device according to claim 1, characterized in that: The outer wall of the positioning rod (41) below the supporting plate (42) is fixed with the supporting plate (42).

4. A rewinding unit safety door opening and closing device according to claim 1, characterized in that: One end of the insert block (33) passes through the through slot (311) and is inserted into the interior of the small square tube (35).

5. The rewinding unit safety door opening and closing device according to claim 1, characterized in that: An L-shaped plate (36) is fixed to one side of the L-shaped block (32) away from the insert block (33); one end of the L-shaped plate (36) away from the L-shaped block (32) is located outside the large square tube (31).

6. A rewinding unit safety door opening and closing device according to claim 1, characterized in that: The back plate (51) is welded to the top of the lower mesh plate (1).

7. A rewinding unit safety door opening and closing device according to claim 1, characterized in that: The outer diameter of the hanging handle (57) is smaller than the distance between the inner walls on both sides of the through cavity (54) and the hanging cavity (55).

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