Safety protection device of rewinding machine

Abstract

The utility model discloses a safety protection device of a rewinding machine, which comprises a protection shell used for protecting a cutter shaft of the rewinding machine, two ends of the protection shell are respectively provided with a limiting frame, and two sides of the protection shell are respectively clamped on a rack on the corresponding side of the rewinding machine through the limiting frames. According to the utility model, through the arrangement of the fixing pieces, when the protective shell needs to be disassembled, only the second bolt needs to be rotated reversely, so that the fixing disc is separated from the rack, and then the protective shell can be disassembled, so that the protective shell can be disassembled, and the protective shell can be disassembled. Therefore, the protective shell can be easily taken down from the rewinding machine, which is very convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of rewinding machine protection devices, in particular to a safety protection device for a rewinding machine. Background Art

[0002] A rewinder is a special equipment used for paper, mica tape and film. Its purpose is to rewind the paper rolls (called base paper rolls) produced by the papermaking machine in sequence. After rewinding, the paper is made into finished paper and shipped out of the factory.

[0003] At present, the Chinese patent with the announcement number CN217943560U discloses a safety device for a slitting and rewinding machine, including a frame and a protective shell. A numerical control box is provided on one outer wall of the frame. A lower rotating roller and an upper rotating roller are connected to the outer wall of the opposite side of the frame through a bearing. A knife shaft is provided on the outer wall of the knife shaft. A plurality of slitting knives are provided on the outer wall of the knife shaft. The slitting knives and the knife shaft are both arranged in the protective shell. The outer walls of both sides of the protective shell are rotatably connected to the frame through bearings. A hole is opened on one outer wall of the frame. A threaded rod is connected to the inner wall of the hole through a thread. One end of the threaded rod is fixedly connected to a limit rod. The utility model sets a protective shell. Before the slitting and rewinding machine is operated, the protective shell is pressed down, the threaded rod is rotated by the rotating sleeve, and the threaded rod is used to drive the limit rod into the second hole. The protective shell protects the knife shaft and the slitting knife, greatly reducing the safety hazards during the operation of the slitting and rewinding machine.

[0004] The above-mentioned safety device for the slitting and rewinding machine has some problems in use. The protective shell is always located outside the knife shaft and the slitting knife. When the slitting knife needs to be replaced, it needs to be removed, which is relatively complicated. Utility Model Content

[0005] The purpose of the present utility model is to provide a safety protection device for a rewinding machine to solve the relatively complicated problem that the protective shell proposed in the above background technology is always located on the outside of the knife shaft and the slitting knife, and when the slitting knife needs to be replaced, it needs to be removed.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A safety protection device for a rewinding machine, comprising a protective shell for protecting a blade shaft of the rewinding machine, limit frames being provided at both ends of the protective shell, the two sides of the protective shell being respectively connected to corresponding side frames of the rewinding machine through the limit frames, fixing members for fixing the limit frames being provided on the facing side surfaces of the two sets of limit frames, and limit members for limiting the position of the limit frames being provided in the inner cavities of the two sets of limit frames;

[0008] The fixing member includes a second bolt arranged on the opposite side of the two sets of limit frames, the second bolt thread penetrates the surface of the corresponding side limit frame, one end of the second bolt is rotatably connected to the fixing plate, and the surface of the fixing plate is provided with an anti-slip protrusion.

[0009] Preferably, the limiting member includes limiting blocks fixedly mounted on the inner cavities of the two groups of limiting frames respectively, and limiting grooves are provided on the top of the rewinder and at positions corresponding to the limiting blocks, and the limiting blocks are clamped in the inner cavities of the limiting grooves.

[0010] Preferably, both ends of the two groups of limiting frames are fixedly connected with transparent plates.

[0011] Preferably, two groups of guide holes are symmetrically arranged on opposite sides of the two groups of limit frames, and the inner cavities of the guide holes are slidably connected to guide rods. The two groups of guide rods on the same side are respectively fixedly connected to the corresponding side surfaces of the corresponding transparent plates, and both sides of the surface of the transparent plate of one group are fixedly connected with limit components for limiting the protective shell.

[0012] Preferably, the limit assembly includes positioning blocks fixedly mounted on both sides of the surface of one group of transparent plates, the opposite sides of the two groups of positioning blocks extend to the surface of the corresponding side limit frames, the surfaces of the two groups of positioning blocks are provided with plug-in holes, the inner cavities of the two groups of plug-in holes are plugged with plug rods, the surfaces of the two groups of limit frames are provided with several groups of plug-in holes arranged corresponding to the plug rods, and the several groups of plug-in holes located on the surfaces of the same group of limit frames are arranged from bottom to top and equidistantly, and the interior of the positioning block is provided with an anti-slip assembly to prevent the plug rod from falling out of the positioning block.

[0013] Preferably, the anti-slip assembly includes guide grooves provided inside the two groups of positioning blocks, the inner cavity of the guide grooves is slidably connected to a guide plate, and the guide plate is sleeved on the surface of the insertion rod.

[0014] Preferably, a spring is sleeved on the surface of the insertion rod located in the inner cavity of the guide groove, and two ends of the spring contact the inner wall of the guide groove and the surface of the guide plate respectively.

[0015] Preferably, the surface of the insertion rod located in the inner cavity of the guide groove is provided with an external thread, and the insertion rod is threadedly connected to the inner cavity close to the outer side of the insertion hole through the external thread.

[0016] Preferably, a handle is fixedly installed on the top of the protective shell.

[0017] Preferably, a first bolt is inserted into the top of the two groups of limit frames, and a threaded hole is provided on the top surface of the rewinder at a position corresponding to the first bolt, and one end of the first bolt is threadedly connected to the inner cavity of the threaded hole.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The utility model is provided with fixing parts. When the protective shell needs to be disassembled, it is only necessary to rotate the second bolt in the opposite direction to separate the fixing plate from the frame. The protective shell can be easily removed from the rewinder, which is very convenient and quick. At the same time, the anti-slip protrusion increases the friction between the fixing plate and the frame of the rewinder, and even if vibration occurs during the operation of the equipment, it can effectively prevent the limit frame from loosening.

[0020] 2. The utility model provides a transparent plate, which plays a certain protective role without affecting the observation of the working condition of the cutter shaft, making it convenient for operators to grasp the operating status of the equipment at any time and preventing foreign objects from accidentally entering the protection area.

[0021] 3. The present invention can precisely limit the vertical position of the protective shell through the setting of the limit assembly, the combination of the positioning block, the insertion rod and the insertion hole, preventing the protective shell from moving up and down under the action of gravity or external force, and multiple groups of equidistantly arranged insertion holes allow the height of the protective shell to be flexibly adjusted according to different work requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of the safety protection device of the rewinding machine of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the limit slot of the utility model;

[0024] Figure 3 This is a schematic structural diagram of the second bolt of the utility model;

[0025] Figure 4 This is a schematic cross-sectional structural diagram of the positioning block of the utility model.

[0026] In the figure: 100, limit frame; 101, protective shell; 102, handle; 103, first bolt; 104, second bolt; 105, limit groove; 106, anti-slip protrusion; 107, limit block; 108, threaded hole; 109, fixing plate; 111, transparent plate; 200, rewinder; 201, knife shaft; 300, positioning block; 301, limit hole; 302, plug hole; 303, guide groove; 304, guide plate; 305, plug rod; 306, spring; 307, external thread; 400, guide hole; 401, guide rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-4 This embodiment provides a safety protection device for a rewinding machine, including a protective shell 101 for protecting a blade shaft 201 of a rewinding machine 200. Limiting frames 100 are provided at both ends of the protective shell 101. Both sides of the protective shell 101 are respectively connected to corresponding side frames of the rewinding machine 200 through the limiting frames 100. The surfaces of the two sets of limiting frames 100 facing each other are provided with fixing parts for fixing the limiting frames 100. The inner cavities of the two sets of limiting frames 100 are provided with limiting parts for limiting the limiting frames 100.

[0029] The fixing parts include a second bolt 104 arranged on the opposite side of the two groups of limit frames 100. The second bolt 104 is threaded through the surface of the corresponding side limit frame 100. One end of the second bolt 104 is rotatably connected to a fixing plate 109. The surface of the fixing plate 109 is provided with an anti-slip protrusion 106. Through the setting of the fixing parts, when it is necessary to remove the protective shell 101, it is only necessary to rotate the second bolt 104 in the opposite direction to separate the fixing plate 109 from the frame, and the protective shell 101 can be easily removed from the rewinder 200, which is very convenient and quick. At the same time, the anti-slip protrusion 106 increases the friction between the fixing plate 109 and the frame of the rewinder 200, and even if vibration occurs during the operation of the equipment, it can effectively prevent the limit frame 100 from loosening.

[0030] Furthermore, the limiting components include limiting blocks 107 respectively fixedly installed on the inner cavities of the two groups of limiting frames 100. Limiting grooves 105 are provided on the top of the rewinding machine 200 and at positions corresponding to the limiting blocks 107. The limiting blocks 107 are clamped in the inner cavity of the limiting grooves 105. Through the setting of the limiting components, the horizontal position of the limiting frame 100 is ensured to be accurate, and the protective shell 101 is prevented from failing to play a normal protective role due to the offset of the limiting frame 100. In addition, during the operation of the equipment, it can withstand certain external force impacts to prevent the limiting frame 100 from being displaced, thereby ensuring the stability of the protection.

[0031] Furthermore, both ends of the protective shell 101 are fixedly connected with transparent plates 111, wherein the transparent plates 111 are one of glass plates and acrylic plates or a combination of the two. Through the setting of the transparent plates 111, the transparent plates 111 play a certain protective role without affecting the observation of the working condition of the knife shaft 201, making it convenient for the operator to grasp the operating status of the equipment at any time, and preventing foreign objects from accidentally entering the protection area.

[0032] Preferably, two groups of guide holes 400 are provided on opposite sides of the two groups of limit frames 100 in a left-right symmetrical manner, and the inner cavities of the guide holes 400 are slidably connected to guide rods 401. The two groups of guide rods 401 on the same side are respectively fixedly connected to the corresponding side surfaces of the corresponding transparent plates 111. Both sides of the surface of the transparent plate 111 of one group are fixedly connected with limit components for limiting the protective shell 101. Through the setting of the guide holes 400 and the guide rods 401, guidance is provided for the movement of the protective shell 101, ensuring that the installation and disassembly process is carried out smoothly, avoiding offset or jamming, and ensuring the stability of the relative position between the protective shell 101 and the limit frame 100.

[0033] It is worth noting that the limiting assembly includes positioning blocks 300 fixedly mounted on both sides of the surface of one group of transparent plates 111. The two opposing sides of the two groups of positioning blocks 300 extend to the surface of the corresponding side limiting frame 100. The surfaces of the two groups of positioning blocks 300 are provided with plug holes 302. The inner cavities of the two groups of plug holes 302 are plugged with plug rods 305. The surfaces of the two groups of limiting frames 100 are provided with several groups of plug holes 302 corresponding to the plug rods 305. Several groups of plug holes located on the surface of the same group of limiting frames 100 are provided. 302 are arranged from bottom to top and at equal intervals. The interior of the positioning block 300 is provided with an anti-falling component to prevent the insertion rod 305 from falling out of the positioning block 300. Through the setting of the limiting component, the combination of the positioning block 300, the insertion rod 305 and the plug-in hole 302 can accurately limit the vertical direction of the protective shell 101 to prevent the protective shell 101 from moving up and down under the action of gravity or external force, and multiple groups of equidistantly arranged plug-in holes 302 make it possible to flexibly adjust the height of the protective shell 101 according to different work requirements.

[0034] Furthermore, the anti-slip assembly includes a guide groove 303 opened inside the two groups of positioning blocks 300, and the inner cavity of the guide groove 303 is slidably connected to the guide plate 304, and the guide plate 304 is sleeved on the surface of the insertion rod 305. Through the setting of the anti-slip assembly, the guide groove 303 and the guide plate 304 ensure that the movement trajectory of the insertion rod 305 is stable, preventing the insertion rod 305 from being skewed or stuck during the insertion and removal process, and limiting the movement range of the insertion rod 305 to prevent the insertion rod 305 from falling out.

[0035] Preferably, a spring 306 is sleeved on the surface of the insertion rod 305 located in the inner cavity of the guide groove 303, and the two ends of the spring 306 respectively contact the inner wall of the guide groove 303 and the surface of the guide plate 304. Through the setting of the spring 306, the spring 306 provides elastic pressure for the insertion rod 305, so that the insertion rod 305 is more firmly inserted into the socket 302 and is not easy to fall out. In addition, during the operation of the equipment, the spring 306 can absorb a certain amount of vibration and impact force to prevent the insertion rod 305 from falling out due to vibration.

[0036] It is worth noting that the surface of the insertion rod 305 located in the inner cavity of the guide groove 303 is provided with an external thread 307, and the insertion rod 305 is threadedly connected to the inner cavity near the outside of the plug-in hole 302 through the external thread 307. By setting the external thread 307 on the surface of the insertion rod 305, the insertion rod 305 is pulled outward and rotated, so that the insertion rod 305 is threadedly connected to the inner cavity of the plug-in hole 302, and the insertion rod 305 is fixed to prevent one end of the insertion rod 305 from being inserted into the inner cavity of the limiting hole 301 under the push of the spring 306 during the upward movement of the protective shell 101, causing jamming.

[0037] Furthermore, a handle 102 is fixedly installed on the top of the protective shell 101. The setting of the handle 102 provides a convenient fulcrum for the operator, making it easy for the operator to pull the protective shell 101 upward.

[0038] Furthermore, the tops of the two sets of limit frames 100 are both connected with first bolts 103, and threaded holes 108 are provided on the top surface of the rewinder 200 and at positions corresponding to the first bolts 103. One end of the first bolt 103 is threadedly connected to the inner cavity of the threaded hole 108. Through the setting of the first bolt 103, the two sets of first bolts 103 are threadedly connected to the inner cavity of the threaded hole 108 in sequence, further fixing the limit parts and enhancing the stability and reliability of the device.

[0039] Working principle;

[0040] First, place the protective shell 101 in the frame of the rewinding machine 200 to protect the knife shaft 201 of the rewinding machine 200. At the same time, the limit frames 100 at both ends of the protective shell 101 are respectively connected to the frame of the rewinding machine 200. At the same time, the limit blocks 107 installed in the inner cavity of the limit frame 100 are connected to the limit grooves 105 opened on the top of the rewinding machine 200 to position the protective shell 101 and prevent the protective shell 101 from moving left and right. Then tighten the second bolts 101 in sequence. 4. One end of the second bolt 104 pushes the fixed plate 109 to one side, and the handle abuts against the surface of the rewinding machine 200 to fix the protective shell 101. At the same time, when the protective shell 101 needs to be disassembled, it is only necessary to rotate the second bolt 104 in the opposite direction in sequence to make the fixed plate 109 connected to one end of the second bolt 104 away from the surface of the rewinding machine 200, and then pull the handle 102 upward to pull the device body out of the frame of the rewinding machine 200. It is very convenient and quick;

[0041] At the same time, when the rewinder 200 is cutting the paper roll, the contact position between the knife shaft 201 and the paper roll can be observed through the transparent plate 111. When a problem is found and the knife shaft 201 needs to be adjusted, the staff first pulls and rotates the rod 305 outward in sequence, so that the rod 305 is threadedly connected to the inner cavity of the plug hole 302, and at the same time, one end of the rod 305 is disengaged from the inner cavity of the limiting hole 301, and then pulls the handle 102 upward to pull the protective shell 101 upward to an appropriate position, and then rotates the rod 305 in the opposite direction in sequence, and the rod 305 is unscrewed from the inner cavity of the plug hole 302, and is inserted into the limiting hole 301 at the corresponding position under the push of the spring 306, thereby fixing the protective shell 101 at a certain height, which makes it easier for the staff to check the knife shaft 201.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for a rewinding machine, characterized in that: The invention comprises a protective shell (101) for protecting a knife shaft (201) of a rewinding machine (200), wherein both ends of the protective shell (101) are provided with a limiting frame (100), and both sides of the protective shell (101) are respectively connected to the corresponding side frames of the rewinding machine (200) through the limiting frames (100), and the surfaces of the two groups of limiting frames (100) facing each other are provided with fixing members for fixing the limiting frames (100), and the inner cavities of the two groups of limiting frames (100) are provided with limiting members for limiting the limiting frames (100); The fixing member comprises a second bolt (104) arranged on the opposite side of the two sets of limit frames (100), the second bolt (104) is threadedly penetrated through the surface of the corresponding side limit frame (100), one end of the second bolt (104) is rotatably connected to a fixing plate (109), and the surface of the fixing plate (109) is provided with an anti-slip protrusion (106).

2. The safety protection device for a rewinding machine according to claim 1, characterized in that; The limiting member comprises limiting blocks (107) respectively fixedly mounted on the inner cavities of the two groups of limiting frames (100); limiting grooves (105) are provided at the top of the rewinding machine (200) and at positions corresponding to the limiting blocks (107); and the limiting blocks (107) are snap-connected to the inner cavities of the limiting grooves (105).

3. The safety protection device for a rewinding machine according to claim 1, characterized in that: Both ends of the two groups of limiting frames (100) are fixedly connected with transparent plates (111).

4. The safety protection device for a rewinding machine according to claim 3, characterized in that: Two groups of guide holes (400) are symmetrically arranged on opposite sides of the two groups of limit frames (100), and the inner cavities of the guide holes (400) are slidably connected to guide rods (401). The two groups of guide rods (401) on the same side are respectively fixedly connected to the corresponding side surfaces of the corresponding transparent plates (111), and both sides of the surface of the transparent plate (111) of one group are fixedly connected to limit components for limiting the protective shell (101).

5. The safety protection device for a rewinding machine according to claim 4, characterized in that: The limiting assembly comprises positioning blocks (300) fixedly mounted on both sides of the surface of one group of transparent plates (111); the two opposite sides of the two groups of positioning blocks (300) extend to the surface of the corresponding side limiting frame (100); the surfaces of the two groups of positioning blocks (300) are provided with plug holes (302); the inner cavities of the two groups of plug holes (302) are plugged with plug rods (305); the surfaces of the two groups of limiting frames (100) are provided with a plurality of groups of plug holes (302) arranged corresponding to the plug rods (305); the plurality of groups of plug holes (302) located on the surface of the same group of limiting frames (100) are arranged from bottom to top and at equal distances; and the interior of the positioning block (300) is provided with an anti-slip assembly for preventing the plug rod (305) from falling out of the positioning block (300).

6. The safety protection device for a rewinding machine according to claim 5, characterized in that: The anti-slip assembly comprises a guide groove (303) provided inside two groups of positioning blocks (300), the inner cavity of the guide groove (303) is slidably connected to a guide plate (304), and the guide plate (304) is sleeved on the surface of the insertion rod (305).

7. The safety protection device for a rewinding machine according to claim 6, characterized in that: A spring (306) is sleeved on the surface of the insertion rod (305) located in the inner cavity of the guide groove (303), and two ends of the spring (306) respectively contact the inner wall of the guide groove (303) and the surface of the guide plate (304).

8. The safety protection device for a rewinding machine according to claim 7, characterized in that: The surface of the insertion rod (305) located in the inner cavity of the guide groove (303) is provided with an external thread (307), and the insertion rod (305) is threadedly connected to the inner cavity of the insertion hole (302) close to the outside through the external thread (307).

9. The safety protection device for a rewinding machine according to claim 4, characterized in that: A handle (102) is fixedly mounted on the top of the protective shell (101).

10. A safety protection device for a rewinding machine according to any one of claims 1 to 9, characterized in that: The tops of the two groups of limit frames (100) are both plugged with first bolts (103), and threaded holes (108) are provided on the top surface of the rewinding machine (200) and at positions corresponding to the first bolts (103), and one end of the first bolt (103) is threadedly connected to the inner cavity of the threaded hole (108).

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