Loading and unloading safety protection device for coil stock

Abstract

The utility model discloses a coil stock feeding and discharging safety protection device which comprises a side plate, a winding roller, a guide rail and a sliding seat ascending and descending along the guide rail, the winding roller is rotatably installed on the sliding seat, the guide rail is vertically installed on the side plate, a first motor for driving the winding roller to rotate is installed on the sliding seat, and a second motor is installed above the sliding seat. The second motor is installed on the side plate, the end of the second motor is connected with a chain wheel, the chain wheel is provided with a chain in transmission connection with the chain wheel, one end of the chain is provided with a pull rod, the sliding seat is provided with a sleeve hole for the pull rod to freely penetrate through, the bottom of the pull rod is provided with a supporting plate, and the supporting plate is larger than an inner hole of the sleeve hole in size. A position sensor close to the detection plate is arranged on the sliding seat, the control processor is electrically connected with the position sensor, the first motor and the second motor, and when the position sensor cannot sense the detection plate, the control processor controls the first motor and the second motor to stop running, so that the safety of operators and equipment is protected.

Description

Technical Field

[0001] The utility model relates to the field of printing machines, in particular to a safety protection device for loading and unloading coiled materials. Background Art

[0002] There are coils of material on the printing machine. After the coils are printed, they are wound into finished products. There will be residual material after printing. When another coil needs to be replaced, unloading operation is required. The traditional coil is sleeved on the unwinding roller, and the unwinding roller moves up and down through the lifting component to complete loading or unloading. Since the weight of the coil or the finished coil is very large, especially during the unloading or unloading process, once an obstacle is encountered, if it continues to descend, it will cause damage to the equipment and scratches on the coil, and even affect the safety of the operator. Therefore, how to safely complete the loading and unloading of the coil is an urgent problem to be solved. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a coil loading and unloading safety protection device, the purpose of which is to stop the machine in time if an obstacle is encountered during the unloading process of the coil, thereby protecting the safety of operators and equipment.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a coil material loading and unloading safety protection device, comprising side plates, winding rollers, guide rails and a slide seat that rises and falls along the guide rails, the winding rollers are rotatably mounted on the slide seat, the guide rails are vertically mounted on the side plates, a first motor that drives the winding roller to rotate is mounted on the slide seat, a second motor is mounted above the slide seat, the second motor is mounted on the side plates and a sprocket is connected at its end portion, the sprocket is provided with a chain that is transmission-connected to it, a pull rod is provided at one end of the chain, a sleeve hole is provided on the slide seat for the pull rod to freely insert, a support plate is provided at the bottom of the pull rod, the size of the support plate is larger than the inner hole of the sleeve hole, a detection plate is installed on the support plate, a position sensor close to the detection plate is provided on the slide seat, and also includes a control processor, the control processor is electrically connected to the position sensor, the first motor and the second motor, and when the position sensor cannot sense the detection plate, the control processor controls the first motor and the second motor to stop running.

[0005] A cover plate covering the second motor is installed on the side plate, a chain positioning bar is connected to the cover plate, a square groove matching the width of the chain is provided on the chain positioning bar, and the chain is positioned and slid along the square groove.

[0006] The slide seat is connected with a fixing block, the sleeve hole is arranged on the fixing block, and the position sensor is installed on the fixing block.

[0007] An upper limit sensor and a lower limit sensor are also installed on the side plate. The upper limit sensor and the lower limit sensor are respectively controlled and connected by a control processor. The slide moves at a position between the upper limit sensor and the lower limit sensor.

[0008] The beneficial effect of the utility model is that: the coil is installed on the winding roller, and when unloading, the chain is driven by the second motor to pull the winding roller on the slide to move downward. After the coil or the slide stops moving downward when encountering an obstacle, the pull rod will still move downward through the sleeve hole driven by the chain. At this time, the position sensor arranged on the slide is away from the detection plate. When the position sensor cannot sense the detection plate, the control processor will stop the operation of the first motor and the second motor to avoid excessive downward movement of the coil causing damage to the equipment or endangering the operator, thereby protecting the safety of the operator and the equipment.

[0009] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;

[0011] Figure 2 It is a side view of a specific embodiment of the utility model;

[0012] Figure 3 It is a cross-sectional view of a specific implementation mode of the utility model;

[0013] Figure 4 for Figure 3 A is an enlarged view of the middle image.

[0014] In the figure, 1 is a side plate; 2 is a winding roller; 3 is a guide rail; 4 is a slide seat; 5 is a sprocket; 6 is a chain; 7 is a pull rod; 7 is a support plate; 8 is a set of holes; 9 is a detection plate; 10 is a position sensor; 11 is a cover plate; 12 is a chain positioning bar; 13 is a fixing block; 14 is an upper limit sensor; 15 is a lower limit sensor. DETAILED DESCRIPTION

[0015] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0016] like Figure 1 — Figure 4As shown, the present embodiment discloses a safety protection device for loading and unloading coiled materials, comprising a side plate 1, a winding roller 2, a guide rail 3 and a slide 4 which is lifted and lowered along the guide rail 3. The winding roller 2 is rotatably mounted on the slide 4, the guide rail 3 is vertically mounted on the side plate 1, a first motor (not shown in the figure) which drives the winding roller 2 to rotate is mounted on the slide 4, a second motor (not shown in the figure) is mounted above the slide 4, the second motor is mounted on the side plate 1, a sprocket 5 is connected to its end, a chain 6 which is transmission-connected to the sprocket 5 is arranged on the sprocket 5, a pull rod 7 is connected to one end of the chain 6, a sleeve hole 8 is provided on the slide 4 for the pull rod 7 to freely insert and move, a support plate 71 is provided at the bottom of the pull rod 7, and the size of the support plate 71 is large In the inner hole of the sleeve hole 8, the weight of the slide is supported on the support plate 71 and moves up and down with the pull rod. A detection plate 9 is installed on the support plate 71, and a position sensor 10 close to the detection plate 9 is arranged on the slide 4. It also includes a control processor, which is electrically connected to the position sensor 10, the first motor and the second motor. When the coil on the roller 2 encounters an obstacle during the downward movement, the slide also stops moving downward, and the position sensor 10 on the pull rod 7 continues to move downward under the drive of the first motor. When the position sensor 10 cannot sense the detection plate 9, the control processor controls the first motor and the second motor to stop running, reaching a state of equipment shutdown, thereby protecting the equipment and personnel safety.

[0017] A cover plate 11 for covering the second motor is also installed on the side plate 1, and a chain positioning bar 12 is connected to the cover plate 11. The chain positioning bar 12 is provided with a square groove adapted to the width of the chain 6, and the chain 6 is positioned and slid along the square groove. Through this technical solution, the chain 6 can move more stably and avoid separation from the sprocket 5.

[0018] Among them, the slide 4 is connected with a fixing block 13, the sleeve hole 8 is set on the fixing block 13, and the position sensor 10 is installed on the fixing block 13. This structure can make the installation of the position sensor 10 more convenient, and at the same time, the structure is firm and reliable, and the transmission cooperation with the pull rod 7 is more stable.

[0019] An upper limit sensor 14 and a lower limit sensor 15 are also installed on the side plate 1. The upper limit sensor 14 and the lower limit sensor 15 are used to monitor the slide seat, and of course, the slide seat will be provided with a sensing component for the upper limit sensor 14 and the lower limit sensor 15 to sense. The upper limit sensor 14 and the lower limit sensor 15 are respectively controlled and connected by a control processor, and the control processor controls the position of the slide seat 4 between the upper limit sensor 14 and the lower limit sensor 15. Through this technical solution, the range of movement of the roller 2 can be controlled to prevent the roller 2 from excessively rising or moving down, thereby causing damage to the equipment or endangering the safety of personnel.

[0020] By adopting the above technical solution, the coil is installed on the winding roller 2. When unloading or changing materials, the chain 6 is driven by the second motor to pull the winding roller 2 on the slide 4 to move downward. Since the slide is supported by the support plate on the pull rod, after the coil or slide 4 stops moving downward when encountering an obstacle, the pull rod 7 will still move downward through the sleeve hole 8 driven by the chain 6. At this time, the position sensor 10 arranged on the slide 4 is away from the detection plate 9. When the position sensor 10 cannot sense the detection plate 9, the control processor will stop the operation of the first motor and the second motor to avoid excessive downward movement of the coil and cause damage to the equipment or endanger the operator, thereby protecting the safety of the operator and equipment.

[0021] The structure is used for the material unloading and / or material receiving position of the printing device, making loading and unloading of materials safer.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A safety protection device for loading and unloading coiled materials, comprising a side plate, a coiling roller, a guide rail, and a slide seat that rises and falls along the guide rail, wherein the coiling roller is rotatably mounted on the slide seat, the guide rail is vertically mounted on the side plate, a first motor that drives the coiling roller to rotate is mounted on the slide seat, a second motor is mounted above the slide seat, the second motor is mounted on the side plate, a sprocket is connected to the end of the second motor, and a chain that is transmission-connected to the sprocket is arranged on the sprocket, characterized in that: A pull rod is provided at one end of the chain, and a sleeve hole is provided on the slide seat for the pull rod to be freely inserted. A support plate is provided at the bottom of the pull rod, and the size of the support plate is larger than the inner hole of the sleeve hole. A detection plate is installed on the support plate. A position sensor close to the detection plate is provided on the slide seat, and also includes a control processor. The control processor is electrically connected to the position sensor, the first motor and the second motor. When the position sensor cannot sense the detection plate, the control processor controls the first motor and the second motor to stop running.

2. The coil loading and unloading safety protection device according to claim 1 is characterized in that: A cover plate covering the second motor is installed on the side plate, a chain positioning bar is connected to the cover plate, a square groove matching the width of the chain is provided on the chain positioning bar, and the chain is positioned and slid along the square groove.

3. The coil loading and unloading safety protection device according to claim 1 is characterized in that: The slide seat is connected with a fixing block, the sleeve hole is arranged on the fixing block, and the position sensor is installed on the fixing block.

4. The coil loading and unloading safety protection device according to claim 1 is characterized in that: An upper limit sensor and a lower limit sensor are also installed on the side plate. The upper limit sensor and the lower limit sensor are respectively controlled and connected by a control processor. The slide moves at a position between the upper limit sensor and the lower limit sensor.

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