Protective device for printing roller cart

Abstract

The utility model relates to the technical field of protective devices, in particular to a protective device for a printing roller cart, which comprises a movable frame, the top surface of the movable frame is fixedly connected with a plurality of arc-shaped supporting pieces, and the top of each arc-shaped supporting piece is slidably connected with a printing roller. The printing roller protection device has the advantages that the pull plate is pulled to drive the locking pin to move into the locking hole, the first protection frame and the second protection frame can be connected, the printing roller is located between the first protection frame and the second protection frame at the moment, the protection effect can be achieved, then the threaded column is rotated, and the printing roller can be fixed. The pressing plate can be driven to move downwards through threaded transmission until the pressing plate is tightly attached to the printing roller, the printing roller can be positioned and prevented from rotating during transportation, after the movable frame is pushed to the unloading position, locking between the first protection frame and the second protection frame can be relieved and opened, the printing roller can be conveniently unloaded, and the printing roller can be conveniently conveyed to the unloading position. The loading and unloading difficulty of the printing roller can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of protective devices, in particular to a protective device for a printing roller cart. Background Art

[0002] Printing roller transfer cart is a kind of cart specially designed for transporting printing rollers. Such cart usually includes a frame, at least one front wheel and two rear wheels. The frame is composed of two side rods and at least one arc-shaped support for supporting the printing roller. One end of the arc-shaped support is connected to one side rod and the other end is connected to the other side rod. This design allows the printing roller to be placed firmly on the cart.

[0003] When using a printing roller cart to transport printing rollers, in order to ensure the safety of the transportation operation, a plurality of guardrails are usually welded above the frame, which can play a certain protective effect. Although this can improve the safety of the cart, when multiple printing rollers are placed on the arc-shaped support on the frame, the setting of the guardrails can easily affect the loading and unloading of the printing rollers, thereby increasing the difficulty of loading and unloading the printing rollers, and further reducing the transportation efficiency of the printing rollers. Therefore, a protective device for a printing roller cart is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a protective device for a printing roller cart to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides a protective device for a printing roller cart, including a movable frame, a top surface of the movable frame is fixedly connected to a plurality of arc-shaped supports, the top of each of the arc-shaped supports is slidably connected to a printing roller, the top surface of the movable frame is rotatably connected to a first protective frame and a second protective frame, the first protective frame and the second protective frame are symmetrically distributed about the arc-shaped supports, a side surface of the first protective frame is fixedly connected to a spring, an end of the first spring away from the first protective frame is fixedly connected to a pull plate, a locking pin is fixedly connected to the inner side of the pull plate, the locking pin is clamped with the second protective frame, the tops of the first protective frame and the second protective frame are both threadedly connected to threaded columns, the bottoms of the threaded columns are rotatably connected to a pressure plate through bearings, and the bottom surface of the pressure plate is in conflict with the printing roller.

[0007] Preferably, any of the above schemes is that a support plate is fixedly connected to the top surface of the movable frame, and a rotating shaft is fixedly connected to the side surfaces of the first protective frame and the second protective frame, and the rotating shaft is rotatably connected to the support plate.

[0008] Preferably, any of the above schemes is provided with a locking hole on the side of the second protective frame, the locking pin is engaged with the second protective frame through the locking hole, and the locking pin is slidably connected with the first protective frame.

[0009] Preferably, any of the above solutions is that threaded holes are provided on the tops of the first protective frame and the second protective frame, and the threaded columns are matched with the thread pitches of the threaded holes.

[0010] Preferably, any of the above schemes has two limit columns fixedly connected to the top surface of the pressure plate, the two limit columns are symmetrically distributed on both sides of the threaded column, and the first protective frame and the second protective frame are both slidably connected to the limit columns.

[0011] Preferably, any of the above schemes is that a plurality of arc-shaped grooves are formed on the bottom surface of the pressing plate, the arc-shaped grooves correspond to the printing roller, and the diameters of the arc-shaped grooves and the printing roller are equal.

[0012] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0013] When the printing roller needs to be transported, the mobile frame can be pushed to move it to the loading position, and the printing roller can be transported to the arc-shaped support. At this time, the first protective frame and the second protective frame are in an open state, which can facilitate the transportation of the printing roller to the arc-shaped support. Subsequently, the first protective frame and the second protective frame can be pushed to rotate around the rotating shaft. After rotating to a suitable angle, the pull plate can be pulled to drive the locking pin to move into the locking hole, and the first protective frame and the second protective frame can be connected. At this time, the printing roller is located between the first protective frame and the second protective frame, which can play a protective role. Subsequently, the threaded column is rotated, and the pressure plate can be driven to move downward through the threaded transmission until the pressure plate and the printing roller are in close contact. The printing roller can be positioned to prevent the printing roller from rotating during transportation. After the mobile frame is pushed to the unloading position, the lock between the first protective frame and the second protective frame can be released and opened, which can facilitate the unloading of the printing roller and reduce the difficulty of loading and unloading the printing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the first working state of the assembly of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the second working state of the assembly of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the mobile frame of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the first protective frame of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the second protective frame of the utility model.

[0019] In the figure: 1-movable frame, 2-arc-shaped support, 3-printing roller, 4-first protective frame, 5-second protective frame, 6-spring, 7-pull plate, 8-locking pin, 9-threaded column, 10-pressing plate, 11-supporting plate, 12-rotating shaft, 13-locking hole, 14-threaded hole, 15-limiting column, 16-arc-shaped groove. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following.

[0021] like Figures 1 to 5 As shown, a protective device for a printing roller cart comprises a movable frame 1, a plurality of arc-shaped supports 2 are fixedly connected to the top surface of the movable frame 1, a printing roller 3 is slidably connected to the top of each arc-shaped support 2, a first protective frame 4 and a second protective frame 5 are rotatably connected to the top surface of the movable frame 1, the first protective frame 4 and the second protective frame 5 are symmetrically distributed about the arc-shaped support 2, a spring 6 is fixedly connected to the side surface of the first protective frame 4, a pull plate 7 is fixedly connected to the end of the first spring 6 away from the first protective frame 4, a locking pin 8 is fixedly connected to the inner side of the pull plate 7, the locking pin 8 is clamped with the second protective frame 5, a threaded column 9 is threadedly connected to the top of the first protective frame 4 and the second protective frame 5, a pressing plate 10 is rotatably connected to the bottom of the threaded column 9 through a bearing, and the bottom surface of the pressing plate 10 is in contact with the printing roller 3.

[0022] As an optional technical solution of the utility model, the top surface of the movable frame 1 is fixedly connected with a support plate 11, and the sides of the first protective frame 4 and the second protective frame 5 are fixedly connected with a rotating shaft 12. The rotating shaft 12 is rotatably connected to the support plate 11, pushing the first protective frame 4 and the second protective frame 5 to rotate around the rotating shaft 12, which can prevent the loading and unloading of the printing roller 3 from being affected.

[0023] As an optional technical solution of the utility model, a locking hole 13 is opened on the side of the second protective frame 5, and the locking pin 8 is engaged with the second protective frame 5 through the locking hole 13. The locking pin 8 is slidably connected to the first protective frame 4. By pulling the pull plate 7 to drive the locking pin 8 to move into the locking hole 13, the first protective frame 4 and the second protective frame 5 can be connected. At this time, the printing roller 3 is located between the first protective frame 4 and the second protective frame 5, which can play a protective effect.

[0024] As an optional technical solution of the utility model, a threaded hole 14 is provided on the top of the first protective frame 4 and the second protective frame 5, and the threaded column 9 is adapted to the thread pitch of the threaded hole 14. By rotating the threaded column 9, the pressure plate 10 can be driven to move downward through the threaded transmission until the pressure plate 10 is in close contact with the printing roller 3, and the printing roller 3 can be positioned.

[0025] As an optional technical solution of the present invention, two limit columns 15 are fixedly connected to the top surface of the pressure plate 10, and the two limit columns 15 are symmetrically distributed on both sides of the threaded column 9. The first protective frame 4 and the second protective frame 5 are both slidably connected to the limit columns 15. The movement of the pressure plate 10 can be limited by the limit columns 15, making its movement more stable.

[0026] As an optional technical solution of the utility model, a plurality of arc grooves 16 are provided on the bottom surface of the pressing plate 10, and the arc grooves 16 correspond to the printing roller 3. The arc grooves 16 are equal to the diameter of the printing roller 3, so that the printing roller 3 can be positioned to prevent the printing roller 3 from rotating during transportation.

[0027] A protective device for a printing roller cart, the working principle of which is as follows:

[0028] 1): When the printing roller 3 needs to be transported, the movable frame 1 can be pushed to move it to the loading position, and the printing roller 3 can be transported to the arc-shaped support 2.

[0029] 2): Push the first protective frame 4 and the second protective frame 5 to rotate around the rotating shaft 12 until they rotate to a suitable angle, then pull the pull plate 7 to drive the locking pin 8 to move into the locking hole 13, so that the first protective frame 4 and the second protective frame 5 can be connected.

[0030] 3): Rotate the threaded column 9, and the pressing plate 10 can be driven to move downward through the thread transmission until the pressing plate 10 is in close contact with the printing roller 3, and the printing roller 3 can be positioned.

[0031] In summary, when the printing roller 3 needs to be transported, the protective device for the printing roller cart can push the movable frame 1 to move it to the loading position, and move the printing roller 3 to the arc-shaped support 2. At this time, the first protective frame 4 and the second protective frame 5 are in an open state, which can facilitate the transportation of the printing roller 3 to the arc-shaped support 2. Then, the first protective frame 4 and the second protective frame 5 are pushed to rotate around the rotating shaft 12 until they rotate to a suitable angle. The pull plate 7 can be pulled to drive the locking pin 8 to move into the locking hole 13, and the first protective frame 4 can be moved to the arc-shaped support 2. And the second protective frame 5 is connected. At this time, the printing roller 3 is located between the first protective frame 4 and the second protective frame 5, which can play a protective effect. Then, the threaded column 9 is rotated, and the pressing plate 10 can be driven to move downward through the threaded transmission until the pressing plate 10 is in close contact with the printing roller 3. The printing roller 3 can be positioned to prevent the printing roller 3 from rotating during transportation. After the mobile frame 1 is pushed to the unloading position, the lock between the first protective frame 4 and the second protective frame 5 can be released and opened, which can facilitate the unloading of the printing roller 3 and reduce the difficulty of loading and unloading the printing roller 3.

Claims

1. A protective device for a printing roller cart, characterized in that: The invention comprises a movable frame (1), the top surface of the movable frame (1) is fixedly connected with a plurality of arc-shaped supports (2), the top of each of the arc-shaped supports (2) is slidably connected with a printing roller (3), the top surface of the movable frame (1) is rotatably connected with a first protective frame (4) and a second protective frame (5), the first protective frame (4) and the second protective frame (5) are symmetrically distributed with respect to the arc-shaped supports (2), the side surface of the first protective frame (4) is fixedly connected with a spring (6), the end of the spring (6) away from the first protective frame (4) is fixedly connected with a pull plate (7), the inner side of the pull plate (7) is fixedly connected with a locking pin (8), the locking pin (8) is clamped with the second protective frame (5), the tops of the first protective frame (4) and the second protective frame (5) are both threadedly connected with a threaded column (9), the bottom of the threaded column (9) is rotatably connected with a pressing plate (10) through a bearing, and the bottom surface of the pressing plate (10) contacts the printing roller (3).

2. A protective device for a printing roller trolley according to claim 1, characterized in that: The top surface of the movable frame (1) is fixedly connected to a support plate (11), and the side surfaces of the first protective frame (4) and the second protective frame (5) are fixedly connected to a rotating shaft (12), and the rotating shaft (12) is rotatably connected to the support plate (11).

3. A protective device for a printing roller trolley according to claim 2, characterized in that: A locking hole (13) is provided on the side of the second protection frame (5), the locking pin (8) is snap-connected with the second protection frame (5) through the locking hole (13), and the locking pin (8) is slidably connected with the first protection frame (4).

4. A protective device for a printing roller trolley according to claim 3, characterized in that: The tops of the first protective frame (4) and the second protective frame (5) are both provided with threaded holes (14), and the threaded column (9) is adapted to the thread pitch of the threaded hole (14).

5. A protective device for a printing roller trolley according to claim 4, characterized in that: The top surface of the pressure plate (10) is fixedly connected to two limiting columns (15), and the two limiting columns (15) are symmetrically distributed on both sides of the threaded column (9), and the first protective frame (4) and the second protective frame (5) are both slidably connected to the limiting columns (15).

6. A protective device for a printing roller trolley according to claim 5, characterized in that: The bottom surface of the pressing plate (10) is provided with a plurality of arc-shaped grooves (16), the arc-shaped grooves (16) correspond to the printing roller (3), and the diameters of the arc-shaped grooves (16) and the printing roller (3) are equal.

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