Safety protection device of PP conveying belt production equipment

Abstract

The utility model relates to the technical field of conveying belt production, in particular to a safety protection device of PP conveying belt production equipment, which comprises two mounting plates, a rectangular opening is vertically formed in the surface of one mounting plate, and a plurality of sliding blocks are slidably mounted on the surfaces, close to each other, of the two mounting plates; wherein first hollow cylinders are fixedly installed on the upper surfaces of the two sliding blocks, second hollow cylinders are inserted into the first hollow cylinders in a sliding and sealing mode, telescopic springs are arranged in the first hollow cylinders, air inlets are formed in the surfaces of the second hollow cylinders, and rotating shafts are rotatably installed in through openings in a sealing mode; a sealing plate is fixedly installed at one end of each rotating shaft through a connecting rod, a gear is fixedly installed at one end of each rotating shaft, and the two rotating shafts are controlled by a pulling assembly to rotate together. When clothes of a worker are rolled into or pressed into gaps among the multiple pressing rollers, the multiple pressing rollers can be controlled to be rapidly separated through the pulling assembly, so that the worker is rapidly out of danger.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belt production, in particular to a safety protection device for a PP conveyor belt production device. Background Art

[0002] A PP conveyor belt is a plastic mesh belt, which is mainly used on a plastic steel mesh belt conveyor, providing a safe, fast and simple-to-maintain conveying method. During the production process of the PP conveyor belt, multiple pressing rollers are required for processes such as extrusion and calendering.

[0003] During the operation of multiple existing pressing rollers for producing PP conveyor belts, it may occur that due to improper operation of the staff, clothes are pressed into or caught in the gap between two adjacent pressing rollers. Since there is no mechanism to immediately separate multiple pressing rollers, there are certain potential safety hazards. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the following disadvantages in the prior art: During the operation of multiple existing pressing rollers for producing PP conveyor belts, it may occur that due to improper operation of the staff, clothes are pressed into or caught in the gap between two adjacent pressing rollers. Since there is no mechanism to immediately separate multiple pressing rollers, there are certain potential safety hazards. A safety protection device for a PP conveyor belt production device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A safety protection device for a PP conveyor belt production device includes two mounting plates. A rectangular opening is vertically formed on the surface of one of the mounting plates, and three driving motors are provided. The lowermost driving motor is fixedly installed on the surface of the mounting plate, and the other two driving motors are vertically slidably installed on the surface of the mounting plate. A plurality of sliders are vertically slidably installed on the surfaces of the two mounting plates close to each other. A through opening is formed on the surface of the slider. The output shafts of the three driving motors respectively pass through a plurality of through openings and are fixedly sleeved with pressing rollers.

[0007] Two of them are located on the same vertical horizontal line, and first hollow cylinders are fixedly installed on the upper surfaces of the sliders located below. A second hollow cylinder is slidably and sealingly inserted into the first hollow cylinder. The top end of the second hollow cylinder is fixedly connected to the lower surface of the slider above itself. A telescopic spring is arranged in the first hollow cylinder. Two ends of the telescopic spring are respectively fixedly connected to the slider and the second hollow cylinder. An air outlet pipe communicated with itself is fixedly installed on the surface of the first hollow cylinder. A one-way valve is arranged in the air outlet pipe. An arc-shaped air inlet is formed on the surface of the second hollow cylinder. An installation opening is formed on the surface of the slider fixedly connected to the first hollow cylinder. A through opening communicated with the first hollow cylinder is vertically formed in the top wall of the installation opening. A rotating shaft is sealingly rotatably installed in the through opening. One end of the rotating shaft located in the second hollow cylinder is fixedly installed with a sealing plate for covering the air inlet through a connecting rod. One end of the rotating shaft located in the installation opening is fixedly installed with a gear. The gear is connected to the installation opening through an elastic member. The two rotating shafts are controlled to rotate together through a pulling component.

[0008] Preferably, the elastic member includes a torsion spring sleeved on the rotating shaft. Two ends of the torsion spring are respectively fixedly connected to the upper surface of the gear and the top wall of the installation opening.

[0009] Preferably, the pulling component includes a U-shaped pull plate, two pull ropes and two rack bars. First spring rods are fixedly installed on the surfaces of the two lowermost sliders. The surface of the pull plate is fixedly connected to the ends of the two first spring rods. A telescopic component is horizontally arranged in the installation opening. The two rack bars are respectively fixedly installed at the ends of the two groups of telescopic components and are respectively meshed with the two gears. One ends of the two pull ropes are respectively fixedly connected to the ends of the two rack bars, and the other ends are both fixedly connected to the surface of the pull plate.

[0010] Preferably, the telescopic component includes second spring rods horizontally and fixedly installed on the inner walls of the installation opening. The two rack bars are respectively fixedly installed at the ends of the two second spring rods.

[0011] Preferably, the conduction direction of the one-way valve in the air outlet pipe is from the inside of the first hollow cylinder to the outside.

[0012] Preferably, an anti-slip layer is adhered to the surface of the pull plate. The material of the anti-slip layer is rubber.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] When the clothing of the staff is caught or pressed into the gap between multiple pressure rollers, the control pull plate can be used to drive multiple pull ropes to move multiple rack bars respectively, so that the covering plate no longer covers the air inlet. Multiple sliders will then quickly move vertically, and at this time, multiple pressure rollers will also quickly separate, so that the clothing can be removed from the gap between the multiple pressure rollers, enabling the staff to quickly get out of danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 1 is a front three-dimensional structural schematic diagram of a safety protection device for a PP conveyor belt production device proposed by the present utility model;

[0016] Figure 2 FIG. 2 is a side three-dimensional structural schematic diagram of a safety protection device for a PP conveyor belt production device proposed by the present utility model;

[0017] Figure 3 FIG. 3 is a partial three-dimensional structural schematic diagram of multiple sliders and a pull plate in a safety protection device for a PP conveyor belt production device proposed by the present utility model;

[0018] Figure 4 FIG. 4 is a partial three-dimensional cross-sectional structural schematic diagram of a first hollow cylinder and a second hollow cylinder in a safety protection device for a PP conveyor belt production device proposed by the present utility model;

[0019] Figure 5 FIG. 5 is a partial three-dimensional structural schematic diagram of a rotating shaft and a sealing plate in a safety protection device for a PP conveyor belt production device proposed by the present utility model;

[0020] Figure 6 FIG. 6 Figure 2 is an enlarged view of the structure at A in FIG. 5;

[0021] Figure 7 FIG. 7 Figure 3 is an enlarged view of the structure at B in FIG. 6.

[0022] In the figures: 1 mounting plate, 2 rectangular opening, 3 drive motor, 4 slider, 5 pressure roller, 6 first hollow cylinder, 7 second hollow cylinder, 8 telescopic spring, 9 air outlet pipe, 10 air inlet, 11 rotating shaft, 12 sealing plate, 13 gear, 14 torsion spring, 15 pull plate, 16 pull rope, 17 rack bar, 18 first spring rod, 19 second spring rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] In the present utility model, terms such as "upper", "lower", "left", "right", "middle" and "one" cited are only for the sake of clarity in narration, rather than for limiting the scope of implementation of the present utility model. The change or adjustment of their relative relationship shall also be regarded as the scope of implementation of the present utility model when there is no substantial change in the technical content.

[0025] Referring to Figures 1-7 , a safety protection device for a PP conveyor belt production device, comprising two mounting plates 1. A rectangular opening 2 is vertically formed on the surface of one of the mounting plates 1, and three driving motors 3 are provided. The driving motor 3 at the lowermost position is fixedly installed on the surface of the mounting plate 1, and the other two driving motors 3 are vertically slidably installed on the surface of the mounting plate 1. A plurality of sliders 4 are vertically slidably installed on the surfaces of the two mounting plates 1 facing each other. A through opening is formed on the surface of the slider 4. The output shafts of the three driving motors 3 respectively pass through a plurality of through openings and are fixedly sleeved with pressing rollers 5.

[0026] Two of them are located on the same longitudinal horizontal line, and the upper surfaces of the sliders 4 located below are fixedly installed with first hollow cylinders 6. A second hollow cylinder 7 is slidably and sealingly inserted into the first hollow cylinder 6. The top end of the second hollow cylinder 7 is fixedly connected to the lower surface of the slider 4 above itself. A telescopic spring 8 is provided in the first hollow cylinder 6. The two ends of the telescopic spring 8 are respectively fixedly connected to the slider 4 and the second hollow cylinder 7. An air outlet pipe 9 communicated with itself is fixedly installed on the surface of the first hollow cylinder 6. A one-way valve is provided in the air outlet pipe 9. The conduction direction of the one-way valve in the air outlet pipe 9 is from the inside of the first hollow cylinder 6 to the outside. An arc-shaped air inlet 10 is formed on the surface of the second hollow cylinder 7. An installation opening is formed on the surface of the slider 4 fixedly connected to the first hollow cylinder 6. A through opening communicated with the first hollow cylinder 6 is vertically formed on the top wall of the installation opening. A rotating shaft 11 is sealingly rotatably installed in the through opening. One end of the rotating shaft 11 located in the second hollow cylinder 7 is fixedly installed with a sealing plate 12 for covering the air inlet 10 through a connecting rod. One end of the rotating shaft 11 located in the installation opening is fixedly installed with a gear 13. The gear 13 is connected to the installation opening through an elastic member. The elastic member includes a torsion spring 14 sleeved on the rotating shaft 11. The two ends of the torsion spring 14 are respectively fixedly connected to the upper surface of the gear 13 and the top wall of the installation opening. The two rotating shafts 11 are controlled to rotate together by a pulling component.

[0027] In the initial state, multiple telescopic springs 8 are all in a contracted and tightly compressed state. Multiple air inlets 10 are respectively covered by multiple sealing plates 12, and the gas from the outside cannot enter through the air inlets 10. Thus, multiple second hollow cylinders 7 cannot move upward under the elastic potential energy of the telescopic springs 8. When the staff's clothing is accidentally caught or pressed into the gap between two adjacent pressure rollers 5, the staff can control the rotation of two rotating shafts 11 together through the pulling component, so that multiple sealing plates 12 no longer cover multiple air inlets 10. At this time, the air inlets 10 will be in an open state. Then, the second hollow cylinders 7 will quickly move upward under the elastic potential energy of the telescopic springs 8. The gas from the outside will enter the second hollow cylinders 7 and the first hollow cylinders 6 through the air inlets 10. When the second hollow cylinders 7 are moving upward, except for the lowermost pressure roller 5 that will not move, the remaining multiple pressure rollers 5 will all move vertically and separate from each other. The gap size between two adjacent pressure rollers 5 will become larger, and thus the clothing can be removed from the gap between multiple pressure rollers 5, enabling the staff to quickly get out of danger.

[0028] The pulling component includes a U-shaped pull plate 15, two pull ropes 16, and two rack bars 17. First spring rods 18 are fixedly installed on the surfaces of the two lowermost sliders 4. The surface of the pull plate 15 is fixedly connected to the ends of the two first spring rods 18. A telescopic component is horizontally arranged in the mounting opening. The two rack bars 17 are respectively fixedly installed at the ends of the two groups of telescopic components and are respectively meshed with the two gears 13. One ends of the two pull ropes 16 are respectively fixedly connected to the ends of the two rack bars 17, and the other ends are both fixedly connected to the surface of the pull plate 15. The telescopic component includes a second spring rod 19 horizontally and fixedly installed on the wall of the mounting opening. The two rack bars 17 are respectively fixedly installed at the ends of the two second spring rods 19.

[0029] Pull the pull plate 15. At this time, the two pull ropes 16 will respectively drive the two rack bars 17 to move horizontally, and the gears 13 meshed with the rack bars 17 will drive the rotating shafts 11 and the sealing plates 12 to rotate.

[0030] An anti-slip layer is adhesively bonded to the surface of the pull plate 15. The anti-slip layer is made of rubber. The rubber anti-slip layer has good elasticity and adhesiveness, thus increasing the friction between the staff and the contact surface of the pull plate 15.

[0031] In the present utility model, in the initial state, multiple telescopic springs 8 are all in a contracted and tightly compressed state. Multiple air inlets 10 are respectively covered by multiple sealing plates 12, and the gas from the outside cannot enter through the air inlets 10. Thus, multiple second hollow cylinders 7 cannot move upward under the elastic potential energy of the telescopic springs 8. When the staff's clothing is accidentally caught or pressed into the gap between two adjacent pressure rollers 5, the staff can control the rotation of two rotating shafts 11 together through a pulling component, so that multiple sealing plates 12 no longer cover multiple air inlets 10. At this time, the air inlets 10 will be in an open state. Then, the second hollow cylinders 7 will quickly move upward under the elastic potential energy of the telescopic springs 8. The gas from the outside will enter the second hollow cylinders 7 and the first hollow cylinders 6 through the air inlets 10. When the second hollow cylinders 7 are moving upward, except for the lowermost pressure roller 5 that will not move, the remaining multiple pressure rollers 5 will all move vertically and separate from each other. The gap size between two adjacent pressure rollers 5 will become larger, and thus the clothing can be removed from the gap between multiple pressure rollers 5, enabling the staff to quickly get out of danger.

[0032] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense.

[0033] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A safety protection device for a PP conveyor belt production device, comprising two mounting plates (1), characterized in that: A rectangular opening (2) is vertically opened on the surface of one of the mounting plates (1), and three drive motors (3) are provided. The drive motor (3) located at the bottom is fixedly mounted on the surface of the mounting plate (1), and the other two drive motors (3) are vertically slidably mounted on the surface of the mounting plate (1). A plurality of sliders (4) are vertically slidably mounted on the surfaces of the two mounting plates (1) that are close to each other. A through opening is opened on the surface of the slider (4), and the output shafts of the three drive motors (3) respectively pass through the through openings and are fixedly sleeved with a pressure roller (5); Two of them are located on the same longitudinal horizontal line, and the upper surface of the slider (4) located below is fixedly mounted with a first hollow cylinder (6), a second hollow cylinder (7) is inserted in a sliding and sealing manner in the first hollow cylinder (6), the top of the second hollow cylinder (7) is fixedly connected to the lower surface of the slider (4) located above itself, a telescopic spring (8) is provided in the first hollow cylinder (6), the two ends of the telescopic spring (8) are respectively fixedly connected to the slider (4) and the second hollow cylinder (7), an air outlet pipe (9) connected to itself is fixedly mounted on the surface of the first hollow cylinder (6), a one-way valve is provided in the air outlet pipe (9), and the second hollow cylinder (7) is fixedly mounted on the surface of the first hollow cylinder (6). ) surface is provided with an arc-shaped air inlet (10), a mounting opening is provided on the surface of a sliding block (4) fixedly connected to the first hollow cylinder (6), a through opening in communication with the first hollow cylinder (6) is vertically provided on the top wall of the mounting opening, a rotating shaft (11) is sealed and rotatably installed in the through opening, one end of the rotating shaft (11) located in the second hollow cylinder (7) is fixedly installed with a sealing plate (12) for covering the air inlet (10) through a connecting rod, one end of the rotating shaft (11) located in the mounting opening is fixedly installed with a gear (13), the gear (13) is connected to the mounting opening through an elastic component, and the two rotating shafts (11) are controlled to rotate together through a pulling component.

2. A safety protection device for PP conveyor belt production equipment according to claim 1, characterized in that: The elastic component comprises a torsion spring (14) sleeved on the rotating shaft (11), and two ends of the torsion spring (14) are respectively fixedly connected to the upper surface of the gear (13) and the top wall of the installation opening.

3. A safety protection device for PP conveyor belt production equipment according to claim 1, characterized in that: The pulling assembly comprises a U-shaped pull plate (15), two pull ropes (16) and two rack rods (17); first spring rods (18) are fixedly mounted on the surfaces of the two sliders (4) at the bottom; the surface of the pull plate (15) is fixedly connected to the ends of the two first spring rods (18); a telescopic component is horizontally arranged in the mounting opening; the two rack rods (17) are respectively fixedly mounted on the ends of the two groups of telescopic components and are respectively meshed with the two gears (13); one end of the two pull ropes (16) is respectively fixedly connected to the ends of the two rack rods (17), and the other end is fixedly connected to the surface of the pull plate (15).

4. A safety protection device for PP conveyor belt production equipment according to claim 3, characterized in that: The telescopic component comprises a second spring rod (19) horizontally fixedly mounted on the wall of the mounting opening, and the two rack rods (17) are respectively fixedly mounted on the ends of the two second spring rods (19).

5. The safety protection device for PP conveyor belt production equipment according to claim 1, characterized in that: The conducting direction of the one-way valve in the air outlet pipe (9) is from the inside of the first hollow cylinder (6) to the outside.

6. A safety protection device for PP conveyor belt production equipment according to claim 3, characterized in that: An anti-slip layer is bonded to the surface of the pull plate (15), and the material of the anti-slip layer is rubber.

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