An automatic feeding device for a PVC film calender

Abstract

The present invention belongs to the technical field of PVC film production, and specifically relates to an automatic feeding device for a PVC film calender, which includes a storage tank. Four support columns are fixedly connected to the lower end of the storage tank. The lower ends of the four support columns are fixedly connected to a mounting seat. Mounting holes are provided on the upper end of the mounting seat, and the mounting seat is installed and communicated with the melting material inlet of the calender. A discharge port is provided at the lower end of the storage tank. A collection cylinder is fixedly connected to the lower end of the storage tank. U-shaped fixing blocks are fixedly connected to both sides of the lower end of the collection cylinder. Two rotating rods are rotatably connected to the inner cavity of the U-shaped fixing blocks. A quantitative discharge adjustment component is provided at one end of the two rotating rods; it solves the problem that when discharging the raw materials for PVC film production into the calender, due to the inconvenient quantitative discharge of the raw materials, an excessive amount of raw materials enters the interior of the calender, which easily causes uneven melting of the raw materials, resulting in quality problems in the film roll-pressed by the calender roller track.

Description

Technical Field

[0001] The present invention belongs to the technical field of PVC film production, and specifically relates to an automatic feeding device for a PVC film calender. Background Art

[0002] PVC film, full name polyvinyl chloride film, mainly consists of polyvinyl chloride, with other components added to enhance its heat resistance, toughness, ductility, etc. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is a back coating adhesive. When processing and producing PVC film, a calender is used to heat and melt the PVC film raw material, and then roll it to form a film.

[0003] A patent application with the publication number CN218557761U discloses a high flatness PVC film calender. This patent transports the material into the calendering device through a feeding device, then uses the calendering device to calender the material into a film. The film is then cooled through an adjusting device and finally wound through a winding device. However, currently, before producing PVC film with a calender, the raw material needs to be put into the feeding device, and the feeding device transports the raw material into the calender, heats and melts it into a soft material, and then discharges it into the roller path of the calender to be rolled into a film with the required thickness.

[0004] In the above-mentioned prior art, when discharging the raw material for producing PVC film into the calender, due to the inconvenient quantitative discharge of the raw material, an excessive amount of raw material enters the interior of the calender, which easily causes uneven melting of the raw material, resulting in quality problems with the film rolled by the roller path of the calender.

[0005] Therefore, the present invention provides an automatic feeding device for a PVC film calender. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is: An automatic feeding device for a PVC film calender according to the present invention includes a storage tank. Four support columns are fixedly connected to the lower end of the storage tank. Four support columns are fixedly connected to the upper end of the mounting base. The mounting base is provided with mounting holes at the upper end and is communicated with the melting port of the calender. A discharge port is provided at the lower end of the storage tank. A collection cylinder is fixedly connected to the lower end of the storage tank. A quantitative discharge adjustment assembly is provided at the bottom of the collection cylinder;

[0008] The quantitative discharging and adjusting assembly includes U-shaped fixing blocks symmetrically and fixedly connected to both sides of the lower end of the collecting cylinder. A rotating rod is rotatably connected to the inner cavity of each U-shaped fixing block. One end of one of the rotating rods is fixedly connected to a first sealing cover, and one end of the other rotating rod is fixedly connected to a second sealing cover. The first sealing cover and the second sealing cover cooperate to seal the bottom end of the collecting cylinder. A traction rope is fixedly connected to the other end of each rotating rod, and a plug post is fixedly connected to one end of each traction rope away from the rotating rod.

[0009] Preferably, U-shaped fixing frames are fixedly connected to both sides of the upper end of the mounting base. An adjusting cylinder is fixedly connected to the inner cavity of the two U-shaped fixing frames. The plug post is rotatably connected to the inner cavity of the adjusting cylinder. Rubber pads are provided at one end of the first sealing cover and the second sealing cover close to the collecting cylinder.

[0010] Preferably, the first sealing cover and the second sealing cover are fixedly connected to the ends of the rotating rod away from the traction rope, and rubber pads are provided at one end of the first sealing cover and the second sealing cover close to the collecting cylinder.

[0011] Preferably, threaded rods are rotatably connected to the inner parts of both ends of the U-shaped fixing frame. A knob is fixedly connected to one end of the threaded rod away from the U-shaped fixing frame. A threaded sleeve is externally threaded to one end of the threaded rod located in the inner cavity of the adjusting cylinder. A first fixing disk and a second fixing disk are provided in the inner cavity of the adjusting cylinder. The first fixing disk and the second fixing disk are fixedly connected to the threaded sleeve at the ends away from each other.

[0012] Preferably, a second fixing post is fixedly connected to one end of the first fixing disk away from the threaded sleeve, and a first fixing post is fixedly connected to one end of the second fixing disk away from the threaded sleeve. Both the first fixing post and the second fixing post are provided with two and are symmetrically arranged. The plug post is inserted into the inner cavities of the first fixing post and the second fixing post. Torsion springs are fixedly connected to both inner walls of the inner cavity of the adjusting cylinder. The first fixing disk is fixedly connected to the torsion spring at the end away from the second fixing post, and the second fixing disk is fixedly connected to the torsion spring at the end away from the first fixing post.

[0013] Preferably, a wire arranging hole is provided at one end of the adjusting cylinder close to the rotating rod, and the traction rope passes through the wire arranging hole and is fixedly connected to the plug post. An ear sling is fixedly connected to the outside of the storage tank.

[0014] Preferably, a communicating pipe is fixedly connected and communicated to the outside of the storage tank, and the communicating pipe is arranged in an inclined shape. One end of the communicating pipe away from the storage tank is fixedly connected and communicated to a feeding cylinder. A fixed pipe is fixedly connected and communicated to one side of the outside of the feeding cylinder. One end of the fixed pipe away from the feeding cylinder is fixedly connected and communicated to a funnel.

[0015] Preferably, a conveying auger is rotatably connected to the inner cavity of the feeding cylinder. The upper end of the conveying auger penetrates through the feeding cylinder and is fixedly connected to a first belt pulley. A toothed belt is externally connected to the first belt pulley. One end of the toothed belt away from the first belt pulley is connected to a second belt pulley in a transmission manner.

[0016] Preferably, a fixing frame is fixedly connected to the upper end of the storage tank, a driving motor is installed at the upper end of the fixing frame, the driving motor is fixedly connected to a second pulley through an output shaft, a transmission shaft is fixedly connected to the lower end of the second pulley, and an anti-blocking blanking assembly is arranged outside the transmission shaft;

[0017] Preferably, the anti-blocking blanking assembly includes a V-shaped stirring frame fixedly connected to the outside of the transmission shaft, a chute is arranged inside the V-shaped stirring frame, a spring is fixedly connected to the bottom of the inner cavity of the chute, a T-shaped stirring rod is fixedly connected to one end of the spring away from the bottom of the inner cavity of the chute, and a turning rod is fixedly connected to one end of the T-shaped stirring rod away from the spring.

[0018] Preferably, a rotating block is fixedly connected to the lower end of the transmission shaft, and the rotating block intermittently opens the discharge port during rotation, and a stirring mechanism is arranged outside the transmission shaft.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. For the automatic feeding device of a PVC film calender of the present invention, when processing and producing PVC films, the storage tank is installed above the melting port of the calender by using the mounting seat, and at the same time, it is fixed to the calender by using external bolts passing through the mounting holes. Then, the raw materials in the inner cavity of the storage tank fall into the inner cavity of the collection cylinder through the discharge port. A first sealing cover and a second sealing cover are arranged at the lower end of the inner cavity of the collection cylinder, so as to store the raw materials in the inner cavity of the collection cylinder. After storing a certain amount of raw materials, the first sealing cover and the second sealing cover cannot bear the weight of the raw materials and drive the rotating rod to flip in the inner cavity of the U-shaped fixing block, thereby opening the collection cylinder to discharge the raw materials in the inner cavity. Then, the raw materials fall into the melting port of the calender for melting treatment, thus solving the problem that in the existing automatic feeding device of a PVC film calender, when discharging the production raw materials of PVC films into the calender, due to the inconvenient quantitative discharge of raw materials, excessive raw materials enter the inside of the calender, which easily causes uneven melting of the raw materials.

[0021] 2. For the automatic feeding device of a PVC film calender of the present invention, when processing and producing PVC films, the storage tank discharges the raw materials into the collection cylinder through the discharge port for storage. After storing a certain amount of raw materials in the inner cavity of the collection cylinder, the first sealing cover and the second sealing cover cannot bear the weight of the raw materials and drive the rotating rod to flip in the inner cavity of the U-shaped fixing block, thereby opening the collection cylinder to discharge the raw materials in the inner cavity. After discharging the raw materials in the inner cavity of the collection cylinder, by driving the insertion post to rotate, and at the same time, the insertion post drives the traction rope to wind up, thereby pulling the traction rope to drive the rotating rod to reset. At the same time, during the reset process of the rotating rod, the first sealing cover and the second sealing cover are driven to flip and reset, and then the collection cylinder is sealed again, and then the raw materials are collected and stored again, so as to ensure the melting efficiency of the raw materials by the calender and avoid the situation that the raw materials are not completely melted. Brief Description of the Drawings

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a schematic diagram of the overall front view structure of the present invention;

[0024] Figure 2 is a schematic diagram of the overall bottom-up perspective structure of the present invention;

[0025] Figure 3 is a schematic diagram of the enlarged half-section structure of the storage tank of the present invention;

[0026] Figure 4 is a schematic diagram of the internal half-section structure of the adjusting cylinder of the present invention;

[0027] Figure 5 is a schematic diagram of the enlarged half-section structure of the V-shaped stirring frame of the present invention;

[0028] Figure 6 is a schematic diagram of the enlarged half-section structure of the collection cylinder of the present invention;

[0029] Figure 7 is a schematic diagram of the half-section structure of the feeding cylinder of the present invention;

[0030] In the figure: 1, storage tank; 2, lifting lug; 3, feeding cylinder; 4, connecting pipe; 5, first pulley; 6, fixing frame; 7, driving motor; 8, second pulley; 9, toothed belt; 10, fixed pipe; 11, funnel; 12, mounting seat; 13, support column; 14, mounting hole; 15, U-shaped fixing frame; 16, adjusting cylinder; 17, first sealing cover; 18, second sealing cover; 19, rotating rod; 20, U-shaped fixing block; 21, collection cylinder; 22, wire arranging hole; 23, knob; 24, threaded rod; 25, threaded sleeve; 26, first fixing plate; 27, second fixing plate; 28, first fixing column; 29, second fixing column; 30, inserting column; 31, towing rope; 32, torsion spring; 33, transmission shaft; 34, V-shaped stirring frame; 35, sliding groove; 36, spring; 37, T-shaped stirring rod; 38, turning rod; 39, rotating block; 40, discharge port; 41, conveying auger. Detailed Embodiments

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0032] Please refer to Figure 1-7 , the present invention provides a technical solution:

[0033] An automatic feeding device for a PVC film calender, comprising a storage tank 1, four support columns 13 are fixedly connected to the lower end of the storage tank 1, the lower ends of the four support columns 13 are fixedly connected to a mounting base 12, a mounting hole 14 is arranged on the upper end of the mounting base 12, and the mounting base 12 is communicated with the melting material inlet of the calender. A discharge port 40 is arranged at the lower end of the storage tank 1, and a collecting cylinder 21 is fixedly connected to the lower end of the storage tank 1. A quantitative discharge adjusting assembly is arranged at the bottom of the collecting cylinder 21;

[0034] The quantitative discharge adjusting assembly includes U-shaped fixing blocks 20 symmetrically and fixedly connected to both sides of the lower end of the collecting cylinder 21. A rotating rod 19 is rotatably connected to the inner cavity of each U-shaped fixing block 20. One end of one rotating rod 19 is fixedly connected to a first sealing cover 17, and one end of the other rotating rod 19 is fixedly connected to a second sealing cover 18. The first sealing cover 17 and the second sealing cover 18 cooperate to seal the bottom end of the collecting cylinder 21; A traction rope 31 is fixedly connected to the other end of each rotating rod 19, and a plug post 30 is fixedly connected to one end of each traction rope 31 away from the rotating rod 19.

[0035] Specifically, in the prior art, before the production of PVC films, it is necessary to use a feeding device to put the PVC film production raw materials into the calender, heat and melt the raw materials to form a soft material, and then discharge the soft material into the roller path of the calender. At the same time, the soft material is subjected to multiple roller presses through the roller path of the calender to form a film with the required thickness, and the film is quickly cooled by a cooling device, and then wound and packed by a winding device. However, when discharging the PVC film production raw materials into the calender, due to the inconvenient quantitative discharge of the raw materials, an excessive amount of raw materials enters the interior of the calender, which easily causes uneven melting of the raw materials, resulting in quality problems of the film formed by the roller press of the calender roller path;

[0036] When the present invention processes and produces PVC films, the storage tank 1 is installed above the melting port of the calender by using the mounting seat 12. At the same time, an external bolt passes through the mounting hole 14 to fix it to the calender. Then, the raw materials in the inner cavity of the storage tank 1 fall into the inner cavity of the collection cylinder 21 through the discharge port 40. After storing a certain amount of raw materials, the first sealing cover 17 and the second sealing cover 18 cannot bear the weight of the raw materials, driving the rotating rod 19 to flip in the inner cavity of the U-shaped fixing block 20. At the same time, during the flipping process of the rotating rod 19, the traction rope 31 is pulled to move, and the traction rope 31 drives the plug post 30 to rotate, thereby opening the collection cylinder 21 to discharge the raw materials in the inner cavity. Then, the raw materials fall into the melting port of the calender for melting treatment, thus solving the problem that in the existing automatic feeding device of the PVC film calender, when discharging the production raw materials of the PVC film into the calender, due to the inconvenient quantitative discharge of the raw materials, an excessive amount of raw materials enters the interior of the calender, easily causing uneven melting of the raw materials.

[0037] As Figures 1 to 4 shown, both sides of the upper end of the mounting seat 12 are fixedly connected with U-shaped fixing frames 15. The inner cavities of the two U-shaped fixing frames 15 are both fixedly connected with adjusting cylinders 16. The plug post 30 is rotatably connected in the inner cavity of the adjusting cylinder 16. Rubber pads are provided at one end of the first sealing cover 17 and the second sealing cover 18 close to the collection cylinder 21.

[0038] Specifically, when processing and producing PVC films, the storage tank 1 discharges the raw materials into the collection cylinder 21 through the discharge port 40 for storage. After storing a certain amount of raw materials in the inner cavity of the collection cylinder 21, the first sealing cover 17 and the second sealing cover 18 cannot bear the weight of the raw materials, driving the rotating rod 19 to flip in the inner cavity of the U-shaped fixing block 20, thereby opening the collection cylinder 21 to discharge the raw materials in the inner cavity. After discharging the raw materials in the inner cavity of the collection cylinder 21, by driving the plug post 30 to rotate, and at the same time the plug post 30 drives the traction rope 31 to wind up, thereby pulling the rotating rod 19 to reset by the traction rope 31. At the same time, during the reset process of the rotating rod 19, the first sealing cover 17 and the second sealing cover 18 are driven to flip and reset, and then the collection cylinder 21 is sealed again, and then the raw materials are collected and stored again, thereby ensuring the melting efficiency of the raw materials by the calender and avoiding the situation that the raw materials are not completely melted.

[0039] As Figures 2 to 4 shown, the two ends of the U-shaped fixing frame 15 are rotatably connected with threaded rods 24 inside. The threaded rods 24 are fixedly connected with knobs 23 at one end away from the U-shaped fixing frame 15. The outer thread of one end of the threaded rod 24 located in the inner cavity of the adjusting cylinder 16 is threadedly connected with a threaded sleeve 25. The inner cavity of the adjusting cylinder 16 is provided with a first fixing disk 26 and a second fixing disk 27. The mutually remote ends of the first fixing disk 26 and the second fixing disk 27 are fixedly connected with the threaded sleeve 25.

[0040] Specifically, when it is necessary to adjust the discharge amount of the raw material, the drive knob 23 is rotated. At the same time, the knob 23 drives the threaded rod 24 to rotate. Then, the threaded rod 24 is thread-driven to make the threaded sleeve 25 move away. When the threaded sleeve 25 is thread-separated from the threaded rod 24, it pushes the first fixed disk 26 and the second fixed disk 27 to slide closer to each other in the inner cavity of the adjusting cylinder 16, thereby increasing the bearing capacity of the first sealing cover 17 and the second sealing cover 18. Furthermore, when a certain amount of raw material falls on the first sealing cover 17 and the second sealing cover 18, the first sealing cover 17 and the second sealing cover 18 cannot bear the weight of the raw material and drive the rotating rod 19 to flip, thereby opening the collection cylinder 21 to discharge the raw material into the calender, improving the discharge accuracy of the raw material, ensuring that all the raw material discharged into the calender can be completely melted, and improving the quality of the PVC film.

[0041] As Figures 2 to 4 shown, a second fixed column 29 is fixedly connected to one end of the first fixed disk 26 away from the threaded sleeve 25, and a first fixed column 28 is fixedly connected to one end of the second fixed disk 27 away from the threaded sleeve 25. Moreover, both the first fixed column 28 and the second fixed column 29 are provided with two and are symmetrically arranged. A plug post 30 is inserted into the inner cavities of the first fixed column 28 and the second fixed column 29. Torsion springs 32 are fixedly connected to both inner walls of the inner cavity of the adjusting cylinder 16. One end of the first fixed disk 26 away from the second fixed column 29 is fixedly connected to the torsion spring 32, and one end of the second fixed disk 27 away from the first fixed column 28 is fixedly connected to the torsion spring 32.

[0042] Specifically, when it is necessary to adjust the discharge amount of the raw material, the drive knob 23 is rotated. At the same time, the knob 23 drives the threaded rod 24 to rotate. Then, the threaded rod 24 is thread-driven to make the threaded sleeve 25 move. When the threaded sleeve 25 moves away from each other in the inner cavity of the adjusting cylinder 16, it pulls the first fixed disk 26 and the second fixed disk 27 to slide away from each other in the inner cavity of the adjusting cylinder 16. At the same time, the first fixed disk 26 and the second fixed disk 27 squeeze the torsion springs 32 on both inner walls of the inner cavity of the adjusting cylinder 16, increasing the torsion force of the torsion springs 32. Moreover, the first fixed disk 26 and the second fixed disk 27 also drive the first fixed column 28 and the second fixed column 29 to move away from each other. At the same time, the plug post 30 slides in the first fixed column 28 and the second fixed column 29, so that during the flipping process of the rotating rod 19, it pulls the traction rope 31 to drive the plug post 30 to rotate, and the plug post 30 drives the first fixed column 28 and the second fixed column 29 to rotate. At the same time, the first fixed column 28 and the second fixed column 29 drive the first fixed disk 26 and the second fixed disk 27 to rotate. The first fixed disk 26 and the second fixed disk 27 drive the threaded sleeve 25 to rotate, and then drive the threaded rod 24 to rotate inside the U-shaped fixing bracket 15. At the same time, the first fixed disk 26 and the second fixed disk 27 twist the torsion springs 32, so that during the flipping process of the rotating rod 19, the first sealing cover 17 and the second sealing cover 18 are opened to discharge the raw material, thereby realizing the adjustment of the quantitative discharge of the raw material.

[0043] like Figure 1 , Figure 2 and Figure 4 As shown, a wire arrangement hole 22 is provided at one end of the adjusting cylinder 16 close to the rotating rod 19 , and a traction rope 31 passes through the wire arrangement hole 22 and is fixedly connected to the plug column 30 , and an ear hanger 2 is fixedly connected to the outside of the storage tank 1 .

[0044] Specifically, when the PVC film is processed and produced, the storage tank 1 is lifted by the ear hanger 2 through an external crane, and the storage tank 1 is installed above the melting port of the calender using the mounting seat 12, and is fixed to the calender by passing through the mounting hole 14 with an external bolt. When discharging the raw material, the rotating rod 19 pulls the traction rope 31 out of the inner cavity of the wire arrangement hole 22 during the flipping process, and the first sealing cover 17 and the second sealing cover 18 are opened to discharge the raw material, thereby realizing the adjustment of the quantitative discharge of the raw material. Embodiment 2

[0045] like Figures 1 to 7 As shown in Comparative Example 1, another embodiment of the present invention is:

[0046] like Figure 1 , Figure 2 and Figure 7 As shown, a connecting pipe 4 is fixedly connected to the outside of the storage tank 1, and the connecting pipe 4 is arranged in an inclined shape. The connecting pipe 4 is fixedly connected to the loading barrel 3 at one end away from the storage tank 1, and a fixed pipe 10 is fixedly connected to the outside of the loading barrel 3. The fixed pipe 10 is fixedly connected to a funnel 11 at one end away from the loading barrel 3.

[0047] Specifically, after the storage tank 1 and the calender are installed and fixed, the raw materials for PVC film production are poured into the inner cavity of the funnel 11, and the funnel 11 is used to guide the raw materials into the fixed tube 10 and fall into the inner cavity of the loading barrel 3, and then the raw materials in the inner cavity of the loading barrel 3 are driven to be transported upward. When transported to the top, the raw materials will fall into the inner cavity of the connecting pipe 4, and at the same time, the raw materials will be discharged into the storage tank 1 through the connecting pipe 4 for storage, avoiding the trouble of transporting the raw materials to the calender when the PVC film needs to be processed, and using the feeding device to feed the calender.

[0048] like Figure 1 , Figure 3 and Figure 7 As shown, the inner cavity of the loading barrel 3 is rotatably connected to a conveying auger 41, the upper end of the conveying auger 41 passes through the loading barrel 3 and is fixedly connected to a first pulley 5, the external side of the first pulley 5 is connected to a toothed belt 9, and the end of the toothed belt 9 away from the first pulley 5 is connected to a second pulley 8.

[0049] Specifically, after the storage tank 1 and the calender are installed and fixed, the raw materials for PVC film production are poured into the inner cavity of the funnel 11, and the funnel 11 is used to guide the raw materials into the fixed tube 10 and fall into the inner cavity of the loading barrel 3, and then the second pulley 8 is driven to rotate, and at the same time, the second pulley 8 drives the toothed belt 9 to rotate, and then drives the first pulley 5 to rotate, and then the first pulley 5 drives the conveying auger 41 to rotate, and then during the rotation of the conveying auger 41, the raw materials in the inner cavity of the loading barrel 3 can be twisted and transported upward, and when the raw materials are transported to the top of the inner cavity of the loading barrel 3, they will be introduced into the inner cavity of the storage tank 1 through the inclined connecting pipe 4 for storage, and when the PVC film needs to be manufactured and processed, the raw materials are directly discharged into the calender for processing by opening the storage tank 1, thereby solving the trouble that the automatic feeding device of the PVC film calender cannot collect and store the raw materials for PVC film production when the calender is not working.

[0050] like Figure 1 , Figure 3 and Figure 5 As shown, a fixing frame 6 is fixedly connected to the upper end of the storage tank 1, a driving motor 7 is installed on the upper end of the fixing frame 6, the driving motor 7 is fixedly connected to the second pulley 8 through an output shaft, a transmission shaft 33 is fixedly connected to the lower end of the second pulley 8, and an anti-blocking unloading component is arranged outside the transmission shaft 33.

[0051] Specifically, during the raw material discharge process, the second pulley 8 is driven to rotate by the output shaft of the driving motor 7, and at the same time, the second pulley 8 drives the transmission shaft 33 to rotate, and then the transmission shaft 33 drives the anti-blocking discharge component to work, thereby preventing the raw materials from being blocked at the discharge port 40 of the storage tank 1 when the storage tank 1 discharges the raw materials into the calender.

[0052] like Figure 1 , Figure 3 and Figure 5 As shown, the anti-blocking unloading component includes a V-shaped stirring frame 34 fixedly connected to the outside of the transmission shaft 33, a slide groove 35 is arranged inside the V-shaped stirring frame 34, a spring 36 is fixedly connected to the bottom of the inner cavity of the slide groove 35, a T-shaped stirring rod 37 is fixedly connected to one end of the spring 36 away from the bottom of the inner cavity of the slide groove 35, and a flip rod 38 is fixedly connected to the end of the T-shaped stirring rod 37 away from the spring 36.

[0053] Specifically, during the process of discharging raw materials, the output shaft of the driving motor 7 drives the second pulley 8 to rotate. At the same time, the second pulley 8 drives the transmission shaft 33 to rotate, and then the transmission shaft 33 drives the V-shaped stirring frame 34 to rotate. During the rotation of the V-shaped stirring frame 34, the spring 36 in the inner cavity of the chute 35 bounces the T-shaped stirring rod 37 to move. At the same time, the T-shaped stirring rod 37 pushes the turning rod 38 to move and fits against the inner wall of the storage tank 1 cavity. Therefore, during the rotation of the V-shaped stirring frame 34, the raw materials in the storage tank 1 cavity can be turned over, preventing the raw materials from accumulating at the bottom of the storage tank 1 cavity and causing blockage during raw material discharge. Moreover, the PVC film production raw materials have several different auxiliary materials. Thus, during the rotation of the V-shaped stirring frame 34, it can also play a role in stirring and mixing the raw materials, thereby solving the problem that the existing automatic feeding device of the PVC film calender cannot stir and turn over the raw materials when discharging raw materials quantitatively into the calender, resulting in blockage at the feeding port of the calender.

[0054] As Figure 1 、 Figure 5 and Figure 7 shown, a rotating block 39 is fixedly connected to the lower end of the transmission shaft 33, and the rotating block 39 intermittently opens the discharge port 40 during rotation. A stirring mechanism is arranged outside the transmission shaft 33, and this stirring mechanism is an existing mixing and stirring mechanism.

[0055] Specifically, during the process of discharging raw materials, by driving the transmission shaft 33 to rotate, the transmission shaft 33 drives the rotating block 39 to rotate. During the rotation of the rotating block 39, the discharge port 40 can be intermittently opened. At the same time, the raw materials in the storage tank 1 cavity fall into the inner cavity of the collection cylinder 21 through the discharge port 40 for storage. Moreover, during the rotation of the rotating block 39, it can also stir the raw materials at the bottom of the storage tank 1 cavity, preventing the raw materials from blocking the discharge port 40, thereby realizing quantitative discharge of raw materials, avoiding blockage of the calender feeding port caused by too fast raw material discharge, and ensuring the melting efficiency of the raw materials entering the calender.

[0056] Working principle: When processing and producing PVC films, the storage tank 1 is installed above the melting port of the calender by using the mounting seat 12. At the same time, external bolts pass through the mounting holes 14 to fix it to the calender. Then, the raw materials in the storage tank 1 cavity fall into the inner cavity of the collection cylinder 21 through the discharge port 40. A first sealing cover 17 and a second sealing cover 18 are arranged at the lower end of the inner cavity of the collection cylinder 21, and thus the raw materials are stored in the inner cavity of the collection cylinder 21. After storing a certain amount of raw materials, the first sealing cover 17 and the second sealing cover 18 cannot withstand the weight of the raw materials and drive the rotating rod 19 to flip in the inner cavity of the U-shaped fixing block 20, thereby opening the collection cylinder 21 to discharge the raw materials in the inner cavity, and then the raw materials fall into the melting port of the calender for melting treatment;

[0057] When it is necessary to adjust the discharge amount of the raw material, the driving knob 23 is rotated. Meanwhile, the knob 23 drives the threaded rod 24 to rotate. Then, the threaded rod 24 drives the threaded sleeve 25 to move through thread transmission. When the threaded sleeve 25 moves away from each other in the inner cavity of the adjusting cylinder 16, it pulls the first fixed disk 26 and the second fixed disk 27 to slide away from each other in the inner cavity of the adjusting cylinder 16. At the same time, the first fixed disk 26 and the second fixed disk 27 squeeze the torsion springs 32 on the two inner walls of the adjusting cylinder 16, increasing the torsion force of the torsion springs 32. Moreover, the first fixed disk 26 and the second fixed disk 27 also drive the first fixed column 28 and the second fixed column 29 to move away from each other. Meanwhile, the insertion column 30 slides on the first fixed column 28 and the second fixed column 29. Thus, during the flipping process of the rotating rod 19, the traction rope 31 is pulled to drive the insertion column 30 to rotate, and the insertion column 30 drives the first fixed column 28 and the second fixed column 29 to rotate. At the same time, the first fixed column 28 and the second fixed column 29 drive the first fixed disk 26 and the second fixed disk 27 to rotate. The first fixed disk 26 and the second fixed disk 27 drive the threaded sleeve 25 to rotate, and then drive the threaded rod 24 to rotate inside the U-shaped fixing frame 15. At the same time, the first fixed disk 26 and the second fixed disk 27 twist the torsion springs 32. Furthermore, during the flipping process of the rotating rod 19, the first sealing cover 17 and the second sealing cover 18 are opened to discharge the raw material, thereby realizing the adjustment of the quantitative discharge of the raw material.

[0058] During the discharge process of the raw material, the output shaft of the driving motor 7 drives the second pulley 8 to rotate. Meanwhile, the second pulley 8 drives the transmission shaft 33 to rotate. Then, the transmission shaft 33 drives the V-shaped stirring frame 34 to rotate. During the rotation process of the V-shaped stirring frame 34, the T-shaped stirring rod 37 is bounced to move through the spring 36 in the inner cavity of the chute 35. At the same time, the T-shaped stirring rod 37 pushes the turning rod 38 to move and fits with the inner wall of the storage tank 1. Furthermore, during the rotation process of the V-shaped stirring frame 34, the raw material in the inner cavity of the storage tank 1 can be turned over, avoiding the situation that the raw material accumulates at the bottom of the inner cavity of the storage tank 1 and causing blockage during the discharge of the raw material. Moreover, the PVC film production raw material has several different auxiliary materials. Thus, during the rotation process of the V-shaped stirring frame 34, it can also play a role in stirring and mixing the raw material.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for a PVC film calender, characterized in that: The material storage tank (1) comprises four support columns (13) fixedly connected to the lower end of the material storage tank (1), a mounting seat (12) fixedly connected to the lower ends of the four support columns (13), a mounting hole (14) provided at the upper end of the mounting seat (12), and the mounting seat (12) is connected to the melting port of the calendering machine, a discharge port (40) is provided at the lower end of the material storage tank (1), a collecting cylinder (21) is fixedly connected to the lower end of the material storage tank (1), and a quantitative discharge adjustment component is provided at the bottom of the collecting cylinder (21); The quantitative discharge adjustment assembly comprises U-shaped fixed blocks (20) symmetrically fixed to both sides of the lower end of the collecting tube (21), the inner cavity of each U-shaped fixed block (20) is rotatably connected to a rotating rod (19), one end of one of the rotating rods (19) is fixedly connected to a first sealing cover (17), and one end of the other rotating rod (19) is fixedly connected to a second sealing cover (18), the first sealing cover (17) and the second sealing cover (18) cooperate to seal the bottom end of the collecting tube (21), the other end of each rotating rod (19) is fixedly connected to a traction rope (31), and the end of each traction rope (31) away from the rotating rod (19) is fixedly connected to a plug post (30); U-shaped fixing frames (15) are fixedly connected to both sides of the upper end of the mounting seat (12); the inner cavities of the two U-shaped fixing frames (15) are fixedly connected to adjusting cylinders (16); the plug post (30) is rotatably connected in the inner cavities of the adjusting cylinders (16); and rubber pads are provided at one end of the first sealing cover (17) and the second sealing cover (18) close to the collecting cylinder (21); Threaded rods (24) are rotatably connected to the inside of the two ends of the U-shaped fixing frame (15); a knob (23) is fixedly connected to one end of the threaded rod (24) away from the U-shaped fixing frame (15); a threaded sleeve (25) is externally threadedly connected to one end of the threaded rod (24) located in the inner cavity of the adjustment cylinder (16); a first fixing plate (26) and a second fixing plate (27) are provided in the inner cavity of the adjustment cylinder (16); the first fixing plate (26) and the second fixing plate (27) are fixedly connected to the threaded sleeve (25) at one end away from each other; The first fixing plate (26) is fixedly connected to the second fixing column (29) at one end away from the threaded sleeve (25), and the second fixing plate (27) is fixedly connected to the first fixing column (28) at one end away from the threaded sleeve (25). The first fixing column (28) and the second fixing column (29) are both provided with two and are symmetrically arranged with each other. Inserting columns (30) are inserted into the inner cavities of the first fixing column (28) and the second fixing column (29). Both walls of the inner cavity of the adjusting cylinder (16) are fixedly connected to a torsion spring (32). The first fixing plate (26) is fixedly connected to the torsion spring (32) at one end away from the second fixing column (29), and the second fixing plate (27) is fixedly connected to the torsion spring (32) at one end away from the first fixing column (28).

2. The automatic feeding device for a PVC film calender according to claim 1, characterized in that: The adjusting cylinder (16) is provided with a wire arrangement hole (22) at one end close to the rotating rod (19), and the traction rope (31) passes through the wire arrangement hole (22) and is fixedly connected to the plug post (30), and the storage tank (1) is fixedly connected to an ear hanger (2) on the outside.

3. The automatic feeding device for a PVC film calender according to claim 1, characterized in that: The storage tank (1) is fixedly connected to the outside with a connecting pipe (4), and the connecting pipe (4) is arranged in an inclined shape. The end of the connecting pipe (4) away from the storage tank (1) is fixedly connected to the loading barrel (3). The outside of the loading barrel (3) is fixedly connected to a fixed pipe (10), and the end of the fixed pipe (10) away from the loading barrel (3) is fixedly connected to a funnel (11).

4. The automatic feeding device for a PVC film calender according to claim 3, characterized in that: The inner cavity of the loading barrel (3) is rotatably connected to a conveying auger (41); the upper end of the conveying auger (41) passes through the loading barrel (3) and is fixedly connected to a first belt pulley (5); the first belt pulley (5) is externally connected to a toothed belt (9); and the toothed belt (9) is connected to a second belt pulley (8) at one end away from the first belt pulley (5).

5. The automatic feeding device for a PVC film calender according to claim 1, characterized in that: The upper end of the material storage tank (1) is fixedly connected to a fixing frame (6), the upper end of the fixing frame (6) is provided with a driving motor (7), the driving motor (7) is fixedly connected to a second belt pulley (8) via an output shaft, the lower end of the second belt pulley (8) is fixedly connected to a transmission shaft (33), and an anti-blocking material discharge component is arranged outside the transmission shaft (33).

6. The automatic feeding device for a PVC film calender according to claim 5, characterized in that: The anti-blocking material discharge assembly comprises a V-shaped stirring frame (34) fixedly connected to the outside of the transmission shaft (33), a slide groove (35) is arranged inside the V-shaped stirring frame (34), a spring (36) is fixedly connected to the bottom of the inner cavity of the slide groove (35), a T-shaped stirring rod (37) is fixedly connected to one end of the spring (36) away from the bottom of the inner cavity of the slide groove (35), and a flip rod (38) is fixedly connected to one end of the T-shaped stirring rod (37) away from the spring (36).

7. The automatic feeding device for a PVC film calender according to claim 6, characterized in that: A rotating block (39) is fixedly connected to the lower end of the transmission shaft (33), and the rotating block (39) intermittently opens a discharge port (40) during rotation. A stirring mechanism is arranged outside the transmission shaft (33).

Images