Stretching film workbench

Abstract

The utility model belongs to the technical field of film stretching auxiliary devices, and discloses a film stretching workbench which comprises an anti-static workbench body, a U-shaped frame is assembled on the top of the anti-static workbench body, a bottom plate movably arranged on the top of the anti-static workbench body is fixed to the bottom end of the U-shaped frame, a rolling shaft is rotationally arranged in the U-shaped frame, and the rolling shaft is connected with the anti-static workbench body. An L-shaped groove used for disassembling the rolling shaft is formed in the front surface of the U-shaped frame, and a positioning assembly is arranged at the position, close to the bottom, of the inner wall of the U-shaped frame. The free end of the stretching film is restrained and positioned through the positioning assembly, the situation that a worker spends time in finding the stretching film due to random swing is avoided, dust adhesion caused by contact with a workbench is prevented, external force can be applied to the inner conical cylinder, the cutter strip is made to rise to cut off the stretching film, meanwhile, the free end of the stretching film is attached to the outer wall of the rough shaft, and therefore the stretching film is cut off. And a worker can quickly find the product when packaging the product again, so that the aim of high efficiency of winding the stretching film on the product for packaging the product is fulfilled.

Description

Technical Field

[0001] This utility model relates to the technical field of stretch film auxiliary devices, and in particular to a stretch film workbench. Background Technology

[0002] Stretch film, also known as LLDPE elastic film or packaging film, is a transparent, elastic, strong, non-toxic, and harmless soft polyethylene plastic film that meets international environmental and hygiene standards. LLDPE stretch film has the advantages of being tough, impact-resistant, transparent, and self-adhesive. Whether used for bulk packaging of products or palletizing goods, it can prevent moisture and dust, reduce labor, improve efficiency, and achieve the purpose of protecting products and reducing costs.

[0003] Currently, the stretch film rolled into a tube is placed on top of the workbench using a support. During packaging, the stretch film is manually pulled and wrapped around the outside of the product, and then the stretch film is cut to complete the packaging. However, the free end of the stretch film will swing arbitrarily and come into contact with the workbench. If the tube-shaped stretch film rotates inside the support, its free end will adhere to the outer surface of the tube-shaped stretch film. This means that when packaging is done again, the free end needs to be searched for on the outside of the tube-shaped stretch film, resulting in low packaging efficiency. Therefore, a stretch film workbench is proposed. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a stretch film workbench that can lock the free end of the stretch film, facilitating manual re-packaging of products using the stretch film.

[0005] This utility model also proposes a stretch film workbench, including: an anti-static workbench, a U-frame mounted on the top of the anti-static workbench, a base plate movably mounted on the top of the anti-static workbench fixed at the bottom end of the U-frame, a roller rotatably mounted inside the U-frame, an L-groove for disassembling the roller opened on the front surface of the U-frame, and a positioning component provided on the inner wall of the U-frame near the bottom.

[0006] The positioning assembly includes two sets of support arms that rotate to the inner wall of the U-frame. A shearing shaft is assembled between the two sets of support arms. A rough shaft that is movably connected to the support arm is provided on one side of the shearing shaft. A driven shaft that is rotatably arranged with the support arm is provided below the shearing shaft. A knife groove is opened on the curved outer wall of the driven shaft. A knife strip is installed in the knife groove. A driven strip that extends out of the end of the shearing shaft is slidably arranged inside the shearing shaft. Two sets of U-shaped seats that are fixed to the bottom end of the knife strip are fitted on the top outer wall of the driven strip. A base rod that penetrates the driven strip is fixed on the inner wall of the U-shaped seat. A guide groove is opened at the contact position between the driven strip and the base rod.

[0007] According to some embodiments of the present invention, one end of the roughing shaft, the driven shaft, and the shearing shaft is fixed with a tapered rod, the outer wall of the support arm is slidably provided with an inner tapered cylinder, the end of the inner tapered cylinder extends into the support arm and is sleeved on the outer wall of the three sets of tapered rods, a circular channel for the driven bar to slide is reserved in the tapered rod located at the end of the shearing shaft, and the outer wall of the inner tapered cylinder is provided with a spring for the support arm to fix.

[0008] According to some embodiments of the present invention, the shearing shaft is provided with an operating groove for the driven bar to slide, the operating groove is provided with a return spring connected to the end of the driven bar, and the operating groove is provided with a stroke groove that communicates with the blade groove, the stroke groove is provided for the U-shaped seat to drive the blade bar to rise and fall.

[0009] According to some embodiments of the present invention, a triangular groove is provided on the inner side of the support arm, and a shaped block is fixed at the center of the triangular groove. The external corner of the shaped block and the internal corner of the triangular groove form an annular groove, and an arc strip is connected to the external corner of the shaped block by soft rubber.

[0010] According to some embodiments of the present invention, the outer wall of the shearing shaft is provided with multiple sets of rollers near the rough shaft and driven shaft region, and the outer wall of the shearing shaft is provided with a groove for the rollers to rotate.

[0011] According to some embodiments of this utility model, a constraint groove is provided at the top of the base plate where it contacts the support arm, and the outer walls of the two sets of support arms are rotatably connected to the U-frame by a damping shaft.

[0012] The embodiments of this utility model have at least the following beneficial effects:

[0013] This invention uses a positioning component to constrain and position the free end of the stretch film, preventing it from swinging arbitrarily and requiring manual searching, and preventing it from contacting the workbench and adhering to dust. It can also apply external force to the inner cone, causing the blade to rise and cut the stretch film. At the same time, it allows the free end of the stretch film to attach to the outer wall of the rough shaft, making it easy for manuals to find when packaging products again. This achieves the goal of high efficiency in wrapping products with stretch film. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a first-view view of the U-frame and positioning component of this utility model;

[0017] Figure 3 This is a second-view view of the U-frame and positioning component of this utility model;

[0018] Figure 4 This is a structural diagram of the positioning component of this utility model;

[0019] Figure 5 This is a three-dimensional view of the roughing shaft, shearing shaft, and driven shaft of this utility model.

[0020] Figure 6 These are end face views of the roughing shaft, shearing shaft, and driven shaft of this utility model;

[0021] Figure 7 This is a cross-sectional plan view of the shearing shaft of this utility model;

[0022] Figure 8 For the present utility model Figure 7 A larger image is shown in section A;

[0023] Figure 9 This is a front sectional view of the support arm of this utility model;

[0024] Figure 10 This is a sectional plan view of the side section of the support arm of this utility model.

[0025] 100. Anti-static workbench; 200. Positioning assembly;

[0026] 110. U-frame; 111. Base plate; 112. L-groove; 113. Constraint groove; 120. Roller;

[0027] 210. Support arm; 211. Inner cone; 212. Triangular groove; 213. Irregular block; 214. Arc strip; 220. Rough shaft; 230. Driven shaft; 240. Shearing shaft; 241. Blade bar; 242. Driven bar; 243. Guide groove; 244. Base rod; 245. U-shaped seat; 246. Blade groove. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0033] like Figures 1 to 10 A stretch film workbench is shown, comprising: an antistatic workbench 100, a U-frame 110 mounted on the top of the antistatic workbench 100, a base plate 111 movably mounted on the top of the antistatic workbench 100 fixed at the bottom end of the U-frame 110, a roller 120 rotatably mounted inside the U-frame 110, an L-groove 112 for disassembling the roller 120 opened on the front surface of the U-frame 110, and a positioning component 200 provided on the inner wall of the U-frame 110 near the bottom.

[0034] The positioning assembly 200 includes two sets of support arms 210 that rotate to the inner wall of the U-frame 110. A shearing shaft 240 is assembled between the two sets of support arms 210. A rough shaft 220 is provided on one side of the shearing shaft 240 and is movably connected to the support arm 210. A driven shaft 230 is provided below the shearing shaft 240 and is rotatably arranged with the support arm 210. A knife groove 246 is provided on the curved outer wall of the driven shaft 230. A knife strip 241 is installed in the knife groove 246. A driven strip 242 extending out of the end of the shearing shaft 240 is slidably provided in the shearing shaft 240. Two sets of U-seats 245 are fitted on the top outer wall of the driven strip 242 and fixed to the bottom end of the knife strip 241. A base rod 244 that penetrates the driven strip 242 is fixed on the inner wall of the U-seat 245. A guide groove 243 is provided at the contact position between the driven strip 242 and the base rod 244.

[0035] The stretched film, rolled into a cylindrical shape, is fitted onto the outer wall of the roller 120, and the roller is placed inside the U-frame 110 via the L-groove 112 (as per the instruction manual). Figure 2 and 3As shown), the free end of the stretch film passes through the driven shaft 230 and between the rough shaft 220 and the shearing shaft 240, and finally passes through the upper half of the outer wall of the shearing shaft 240. When wrapping the product, the free end of the stretch film is attached to the outer wall of the product, and the product is rotated to wrap and pack. At this time, the stretch film will cause the roller 120 to rotate and release the stretch film.

[0036] After a certain amount of stretch film is wrapped around the product, an external force can be applied to the inner cone 211, causing it to slide into the support arm 210. The conical hole at its temporal part will cause the rough shaft 220, driven shaft 230, and shearing shaft 240 to move closer together, generating a compressive force on the stretch film between them. Due to the roughness of the outer wall of the rough shaft 220 and the viscosity and elasticity of the freely moving stretch film, the stretch film will adhere to the outer wall of the rough shaft 220. As the inner cone 211 moves, it will generate a lateral thrust on the driven bar 242. At this time, the guide groove 243 will generate an upward lifting force on the base rod 244, causing the U-shaped seat 245 and the top blade 24 to... 1. Move upwards, and the top of the blade 241, that is, the sharpened end, extends out of the blade groove 246. The operator can hold the blade wrapped with the stretch film and swing it slightly left and right to cut the stretch film. The operator removes the external force applied to the inner cone 211, and the rough shaft 220, driven shaft 230 and shearing shaft 240 will return to their original positions, and the interval between them will return to the initial state. The free end of the stretch film will be attached to the outer wall of the rough shaft 220. This can constrain the free end of the stretch film, prevent it from swinging arbitrarily and causing the operator to spend time searching for it next time, and also prevent it from coming into contact with the anti-static workbench and getting covered in dust.

[0037] Please refer to this carefully. Figure 7 and Figure 10 One end of the rough shaft 220, driven shaft 230 and shearing shaft 240 is fixed with a tapered rod. The outer wall of the support arm 210 is slidably provided with an inner tapered cylinder 211. The end of the inner tapered cylinder 211 extends into the support arm 210 and is sleeved on the outer wall of the three sets of tapered rods. A circular channel for the driven bar 242 to slide is reserved in the tapered rod located at the end of the shearing shaft 240. The outer wall of the inner tapered cylinder 211 is provided with a spring for the support arm 210 to be fixed.

[0038] The inner sides of the two sets of support arms 210 are provided with triangular grooves 212. A special-shaped block 213 is fixed in the center of the triangular groove 212. The external corner of the special-shaped block 213 and the internal corner of the triangular groove 212 form an annular groove. The external corner of the special-shaped block 213 is connected with an arc strip 214 by soft rubber.

[0039] When the inner cone 211 is moved laterally by an external force, the inner wall of the inner cone 211 will exert a converging squeezing force on the three sets of cone rods, driving the rough shaft 220, shear shaft 230 and driven shaft 240 to move closer to each other, while the arc strip 214 will also be squeezed closer to the irregular block 213, causing the soft rubber to deform towards a shrunken state. After the external force on the inner cone 211 is removed, the soft rubber will restore the arc strip 214, and at the same time restore the gap between the rough shaft 220, shear shaft 230 and driven shaft 240, allowing the stretching membrane to pass through normally.

[0040] Please refer to this carefully. Figure 7 and Figure 8 The shearing shaft 240 has an operating groove for the driven bar 242 to slide. The operating groove is equipped with a return spring connected to the end of the driven bar 242. The operating groove is also equipped with a stroke groove that communicates with the blade groove 246. The stroke groove allows the U-shaped seat 245 to drive the blade bar 241 to rise and fall.

[0041] The driven bar 242 is reset by a return spring, so that the blade bar 241 is hidden in the blade groove 246;

[0042] The stroke groove ensures that the U-shaped seat 245 returns to its original position as the driven bar 242 moves along a straight trajectory.

[0043] Please refer to this carefully. Figure 5 and Figure 6 Multiple sets of rollers are provided on the outer wall of the shearing shaft 240 near the rough shaft 220 and the driven shaft 230. The outer wall of the shearing shaft 240 is provided with a groove for the rollers to rotate.

[0044] By using rollers to reduce the friction between the stretching membrane and the driven shaft 240, the resistance encountered by the stretching membrane when passing through this point is small, preventing the stretching membrane from being damaged or deformed.

[0045] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 A constraint groove 113 is provided at the top of the base plate 111 where it contacts the support arm 210. The outer walls of the two sets of support arms 210 are rotatably connected to the U-frame 110 by a damping shaft.

[0046] By using a damping shaft to increase the friction between the support arm 210 and the U-frame 110, the support arm 210 can be rotated to a state parallel to the side wall of the U-frame 110, which can better position and hide the free end of the stretch membrane.

[0047] In use, the rolled-up stretch film is fitted onto the outer wall of the roller 120, and the roller is placed inside the U-frame 110 through the L-groove 112 (as per the instruction manual). Figure 2 and 3As shown), the free end of the stretch film passes through the driven shaft 230 and between the rough shaft 220 and the shearing shaft 240, and finally passes through the upper half of the outer wall of the shearing shaft 240. When wrapping the product, the free end of the stretch film is attached to the outer wall of the product, and the product is rotated to wrap and pack. At this time, the stretch film will cause the roller 120 to rotate and release the stretch film.

[0048] After a certain amount of stretch film is wrapped around the product, an external force can be applied to the inner cone 211, causing it to slide into the support arm 210. The conical hole at its temporal part will cause the rough shaft 220, driven shaft 230, and shearing shaft 240 to move closer together, generating a compressive force on the stretch film between them. Due to the roughness of the outer wall of the rough shaft 220 and the viscosity and elasticity of the freely moving stretch film, the stretch film will adhere to the outer wall of the rough shaft 220. As the inner cone 211 moves, it will generate a lateral thrust on the driven bar 242. At this time, the guide groove 243 will generate an upward supporting force on the base rod 244, causing the U-shaped seat 245 and the top blade 241 to move upward. The top of the blade 241 will also... One end of the blade extends out of the blade groove 246. The operator can hold the stretch film wrapped around it and swing it slightly left and right to cut the stretch film. After the operator removes the external force applied to the inner cone 211, the rough shaft 220, driven shaft 230 and shearing shaft 240 will return to their original positions, and the interval between them will return to the initial state. The free end of the stretch film will be attached to the outer wall of the rough shaft 220. This can constrain the free end of the stretch film, prevent it from swinging arbitrarily and requiring the operator to spend time searching for it next time, and prevent it from coming into contact with the anti-static workbench and getting covered in dust. The parts of this device not mentioned are the same as or can be implemented using existing technology.

[0049] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A stretch film worktable, characterized in that: include: An antistatic workbench (100) is provided with a U-frame (110) on its top. A base plate (111) is fixedly fixed at the bottom of the U-frame (110) and is movably mounted on the top of the antistatic workbench (100). A roller (120) is rotatably mounted inside the U-frame (110). An L-groove (112) for disassembling the roller (120) is provided on the front surface of the U-frame (110). A positioning component (200) is provided on the inner wall of the U-frame (110) near the bottom. The positioning assembly (200) includes two sets of support arms (210) mounted on the inner wall of the U-frame (110). A shearing shaft (240) is assembled between the two sets of support arms (210). One side of the shearing shaft (240) is provided with a rough shaft (220) movably connected to the support arm (210). Below the shearing shaft (240) is a driven shaft (230) rotatably connected to the support arm (210). The curved outer wall of the driven shaft (230) is provided with a knife groove (246). A blade (241) is installed in the blade groove (246). A driven bar (242) extending out of the end of the shearing shaft (240) is slidably provided in the shearing shaft (240). Two sets of U-shaped seats (245) fixed to the bottom end of the blade (241) are sleeved on the top outer wall of the driven bar (242). A base rod (244) penetrating the driven bar (242) is fixed on the inner wall of the U-shaped seat (245). A guide groove (243) is provided at the contact position between the driven bar (242) and the base rod (244).

2. The stretching film workbench according to claim 1, characterized in that: One end of the rough shaft (220), driven shaft (230) and shear shaft (240) is fixed with a tapered rod. The outer wall of the support arm (210) is slidably provided with an inner tapered cylinder (211). The end of the inner tapered cylinder (211) extends into the support arm (210) and is sleeved on the outer wall of the three sets of tapered rods. A circular channel for the driven bar (242) to slide is reserved in the tapered rod located at the end of the shear shaft (240). The outer wall of the inner tapered cylinder (211) is provided with a spring for the support arm (210) to be fixed.

3. The stretching film workbench according to claim 1, characterized in that: The shearing shaft (240) has an operating groove for sliding the driven bar (242). The operating groove is provided with a return spring connected to the end of the driven bar (242). The operating groove is also provided with a stroke groove connected to the blade groove (246). The stroke groove is used by the U seat (245) to drive the blade bar (241) to rise and fall.

4. A stretching film workbench according to claim 1, characterized in that: The inner side of the support arm (210) is provided with a triangular groove (212), and a special-shaped block (213) is fixed in the center of the triangular groove (212). The external corner of the special-shaped block (213) and the internal corner of the triangular groove (212) form an annular groove. The external corner of the special-shaped block (213) is connected with an arc strip (214) by soft rubber.

5. A stretching film workbench according to claim 1, characterized in that: The outer wall of the shearing shaft (240) near the rough shaft (220) and driven shaft (230) is provided with multiple sets of rollers, and the outer wall of the shearing shaft (240) is provided with a groove for the rollers to rotate.

6. A stretching film workbench according to claim 1, characterized in that: The top of the base plate (111) is provided with a constraint groove (113) at the contact position with the support arm (210), and the outer walls of the two sets of support arms (210) are rotatably connected to the U frame (110) by a damping shaft.

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