Multi-raw-material mixing equipment for thermoplastic pre-coating film

Abstract

The utility model discloses a thermoplastic pre-coating film multi-raw material mixing device, which relates to the technical field of mixing devices and comprises a rack, a mixing box is fixedly arranged on the inner side of the rack, a discharging mechanism is arranged at the bottom of the mixing box, and a weighing mechanism is arranged on the right side of the rack. The discharging mechanism comprises a spiral feeding barrel, and a discharging square pipe is fixedly arranged between the spiral feeding barrel and the mixing box. By arranging the weighing mechanism, when materials in the material mixing box are discharged, a second electric telescopic rod can be used for driving a discharging baffle to move horizontally, then the discharging end of a discharging pipe is opened for discharging, meanwhile, the materials are weighed in real time through a weighing table and an object placing plate, and the weighing efficiency is improved. And when the weight of the materials reaches the preset weight, a second electric telescopic rod is used for driving a discharging baffle to reset, so that a discharging pipe is closed, the effect of integrating real-time weighing and discharging is achieved, manual weighing and discharging are replaced, the discharging speed is increased, the discharging accuracy is improved, and then the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixing equipment, in particular to a mixing equipment for multiple raw materials of thermoplastic pre-coated films. Background Technique

[0002] Thermoplastic pre-coated film is a composite material with a hot-melt adhesive layer pre-coated on the surface of a plastic film. The most commonly used substrate has the characteristics of high transparency, light weight, water resistance and heat resistance, and has high mechanical strength, resistance to high and low temperatures and gas barrier properties, and is suitable for scenarios with higher performance requirements.

[0003] The raw material mixing system of thermoplastic pre-coated film is based on thermoplastic resin as the matrix, enhances the mechanical properties through reinforcing materials, and combines additives such as lubricants and antioxidants to optimize the processing and use properties. During the mixing preparation process of thermoplastic pre-coated film, different types of raw materials and additives need to be stirred and mixed. Since the mixed raw materials are viscous and cohesive materials, a horizontal mixer is usually used for mixing, and then the raw materials are collected by the discharging assembly, and then the mixed raw materials are manually transferred to the weighing mechanism for weighing. This not only has cumbersome and time-consuming operations, low efficiency, but also low weighing accuracy, affecting the quality of subsequent mixing processing. Therefore, we designed a mixing equipment for multiple raw materials of thermoplastic pre-coated film to realize the integrated operation of discharging and weighing, greatly improving the processing efficiency. Content of the Utility Model

[0004] The utility model discloses a mixing equipment for multiple raw materials of thermoplastic pre-coated film. To achieve the above object, the utility model adopts the following technical scheme:

[0005] A mixing equipment for multiple raw materials of thermoplastic pre-coated film, including a frame, a mixing box is fixedly arranged inside the frame, a discharging mechanism is arranged at the bottom of the mixing box, and a weighing mechanism is arranged on the right side of the frame;

[0006] The discharging mechanism includes a spiral feeding cylinder, a discharging square pipe is fixedly arranged between the spiral feeding cylinder and the mixing box, a movable bottom plate is rotatably arranged on the inner wall of the discharging square pipe, a rectangular discharging hole is opened on the inner bottom wall of the mixing box, the rectangular discharging hole has no protrusion and no depression in the sealed state, a first electric telescopic rod is rotatably connected to the inner wall of the discharging square pipe, and the telescopic end of the first electric telescopic rod is rotatably connected to the lower surface of the movable bottom plate;

[0007] The weighing mechanism includes a discharging pipe fixedly connected to the side of the frame, the left end of the discharging pipe extends into the inside of the spiral feeding cylinder, a feeding pipe is fixedly embedded on the lower surface of the discharging pipe, a limiting through hole is opened on the side of the feeding pipe, a discharging baffle is slidably arranged on the inner wall of the limiting through hole, a weighing platform is fixedly arranged on the side of the frame, and a placing plate is fixedly arranged on the upper surface of the weighing platform.

[0008] In a preferred embodiment, a mounting frame is fixed to the side of the blanking pipe, and a second electric telescopic rod is fixedly connected to the surface of the mounting frame. The telescopic end of the second electric telescopic rod is fixedly connected to the surface of the discharge baffle, and the size of the discharge baffle matches that of the blanking pipe.

[0009] In a preferred embodiment, the position of the weighing platform corresponds to that of the blanking pipe, and the placing plate is located directly below the blanking pipe. A control box is fixedly arranged on the surface of the machine frame, and a weighing display screen is fixedly arranged on the surface of the control box.

[0010] In a preferred embodiment, the size of the movable bottom plate matches that of the rectangular discharge hole. One side of the movable bottom plate is fixedly connected to a rubber connecting belt, and the other side of the rubber connecting belt is fixedly connected to the inner wall of the rectangular discharge hole.

[0011] In a preferred embodiment, the bottom end of the discharge square pipe extends into the spiral feeding cylinder. A spiral conveying rod is rotatably arranged on the inner wall of the spiral feeding cylinder, and a feeding motor is fixedly arranged at the left end of the spiral feeding cylinder. The rotating shaft of the feeding motor extends into the spiral feeding cylinder and is fixedly connected to the end of the spiral conveying rod.

[0012] In a preferred embodiment, a rotating shaft rod is rotatably connected to the inner wall of the mixing box. Two spiral mixing blades are fixedly arranged on the surface of the rotating shaft rod, and a plurality of stirring connecting rods are fixedly arranged between the spiral mixing blades and the rotating shaft rod.

[0013] In a preferred embodiment, a driving box is fixedly arranged on the left side of the machine frame. A driving motor is fixed to the outside of the driving box. The rotating shaft of the driving motor extends into the driving box and is fixedly connected to a driving synchronous pulley. One end of the rotating shaft rod extends into the driving box and is fixed with a driven synchronous pulley. A transmission belt is arranged between the driving synchronous pulley and the driven synchronous pulley.

[0014] As can be seen from the above. A hot melt pre-coated film multi-material mixing device provided by the present utility model has the following technical effects.

[0015] Firstly: By setting up a weighing mechanism, when the materials in the mixing box are discharged, the second electric telescopic rod can be used to drive the discharge baffle to move horizontally, thereby opening the discharge end of the blanking pipe for discharging. At the same time, the weighing platform and the placing plate are used to weigh the materials in real time. When the materials reach the preset weight, the second electric telescopic rod is used to drive the discharge baffle to reset, so as to close the blanking pipe. Compared with the existing horizontal mixer, it can automatically realize the integration of mixing, discharging and weighing, replace manual weighing and discharging, and improve the discharging speed and accuracy.

[0016] Secondly, by arranging a double-helix spiral mixing piece inside the mixing box, the spiral mixing piece can be used to stir the material, thereby increasing the mixing speed between different materials and improving the uniformity of material mixing. By arranging a movable bottom plate at the bottom of the mixing box, when it is necessary to discharge the mixing box, the first electric telescopic rod can be used to drive the movable bottom plate to tilt downward at a certain angle, thereby opening the rectangular discharge hole for discharging. The rectangular discharge hole is sealed without protrusions or depressions, which is convenient for fully mixing the mixed material before discharging, and is beneficial to improving the quality of material mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of a thermoplastic pre-coating film multiple raw material mixing device proposed by the utility model.

[0018] Figure 2 The utility model provides a schematic diagram of the front cross-section structure of a discharge pipe of a thermoplastic pre-coating film multiple raw material mixing device.

[0019] Figure 3 The utility model discloses a front sectional structural schematic diagram of a discharging mechanism of a thermoplastic pre-coating film multiple raw material mixing device.

[0020] Figure 4 This is a schematic diagram of the front section structure of a mixing box of a thermoplastic pre-coating film multiple raw material mixing device proposed by the utility model.

[0021] Figure 5 for Figure 2 Enlarged structural diagram at A in the middle.

[0022] In the attached drawings: 1, frame; 2, mixing box; 3, discharging mechanism; 4, weighing mechanism; 5, rotating shaft; 6, spiral mixing sheet; 7, stirring connecting rod; 8, driving box; 9, driving motor; 10, driving synchronous wheel; 11, driven synchronous wheel; 12, driving belt;

[0023] 301, spiral feeding cylinder; 302, discharge square tube; 303, movable bottom plate; 304, rectangular discharge hole; 305, first electric telescopic rod; 306, rubber connecting belt; 307, feeding motor;

[0024] 401, discharge pipe; 402, feed pipe; 403, discharge baffle; 404, weighing platform; 405, storage board; 406, second electric telescopic rod; 407, control box; 408, weighing display screen. DETAILED DESCRIPTION

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Referring to Figure 1 and Figure 2 , a mixing device for multiple raw materials of a thermoplastic pre-coated film, including a frame 1, a mixing box 2 is fixedly arranged inside the frame 1, a discharging mechanism 3 is arranged at the bottom of the mixing box 2, and a weighing mechanism 4 is arranged on the right side of the frame 1.

[0027] It should be noted that a rotating shaft rod 5 is rotatably connected to the inner wall of the mixing box 2, two spiral mixing blades 6 are fixedly arranged on the surface of the rotating shaft rod 5, and a plurality of stirring connecting rods 7 are fixedly arranged between the spiral mixing blades 6 and the rotating shaft rod 5. Specifically, the spiral mixing blades 6 are in a double-spiral winding shape (such as Figure 4 ), or in a double "S" shape (not shown in the drawings). Further, the size of the mixing box 2 is 610×1450mm, and the length of the spiral mixing blades 6 is 0.5 - 1 meter.

[0028] It should be further noted that a driving box 8 is fixedly arranged on the left side of the frame 1, a driving motor 9 is fixed outside the driving box 8, the rotating shaft of the driving motor 9 extends into the driving box 8, and is fixedly connected with a driving synchronous pulley 10. One end of the rotating shaft rod 5 extends into the driving box 8 and is fixed with a driven synchronous pulley 11. A transmission belt 12 is arranged between the driving synchronous pulley 10 and the driven synchronous pulley 11. The driving motor 9 is used to drive the driving synchronous pulley 10 to rotate, and the transmission belt 12 is used to drive the driven synchronous pulley 11 to rotate, thereby driving the rotating shaft rod 5 to rotate in the mixing box 2.

[0029] It is worth noting that by arranging spiral mixing blades 6 inside the mixing box 2, the spiral mixing blades 6 can be used to stir the materials, improve the mixing speed between different materials, and improve the uniformity of material mixing. Taking a mixing capacity of 2000L as an example, the stirring speed of the spiral mixing blades 6 is controlled at 30 - 40 revolutions per minute.

[0030] Referring to Figure 3 and Figure 4 , in a preferred embodiment, the discharging mechanism 3 includes a spiral feeding cylinder 301, a discharging square pipe 302 is fixedly arranged between the spiral feeding cylinder 301 and the mixing box 2, a movable bottom plate 303 is rotatably arranged on the inner wall of the discharging square pipe 302, a rectangular discharging hole 304 is opened on the inner bottom wall of the mixing box 2, a first electric telescopic rod 305 is rotatably connected to the inner wall of the discharging square pipe 302, and the telescopic end of the first electric telescopic rod 305 is rotatably connected to the lower surface of the movable bottom plate 303.

[0031] It should be noted that the size of the movable bottom plate 303 matches the rectangular discharge hole 304. One side of the movable bottom plate 303 is fixedly connected with a rubber connecting belt 306, and the other side of the rubber connecting belt 306 is fixedly connected with the inner wall of the rectangular discharge hole 304.

[0032] By arranging a rubber connecting belt 306 between the movable bottom plate 303 and the rectangular discharge hole 304, a flexible connection can be generated between the movable bottom plate 303 and the rectangular discharge hole 304, thereby facilitating the driving of the movable bottom plate 303 to rotate. In addition, the sealed state of the movable bottom plate 303 can make the surface of the rectangular discharge hole 304 have no protrusions and no depressions, ensuring that there is no material accumulation at the position of the rectangular discharge hole 304, ensuring the mixing sufficiency of the spiral mixing blade 6, and the opening and closing angle of the movable bottom plate 303 is between 0-30°. When opening and closing 30°, the maximum material discharge flow rate is reached. During the opening and closing material discharge process, the spiral mixing blade 6 can rotate forward and backward to improve the material discharge effect.

[0033] It should be further noted that the bottom end of the discharge square pipe 302 extends into the spiral feeding cylinder 301. A spiral conveyor rod is rotatably arranged on the inner wall of the spiral feeding cylinder 301. The left end of the spiral feeding cylinder 301 is fixedly provided with a feeding motor 307. The rotating shaft of the feeding motor 307 extends into the spiral feeding cylinder 301 and is fixedly connected to the end of the spiral conveyor rod. The feeding motor 307 can be used to drive the spiral conveyor rod to rotate inside the spiral feeding cylinder 301, so as to convey the material to the discharge pipe 401 by means of the spiral conveyor rod.

[0034] It is worth noting that by arranging a movable bottom plate 303 at the bottom of the mixing box 2, when the mixing box 2 needs to discharge materials, the first electric telescopic rod 305 can be used to drive the movable bottom plate 303 to tilt downward by a certain angle, thereby opening the rectangular discharge hole 304 for discharging materials, facilitating discharging after sufficient mixing of the mixture, and being beneficial to improving the quality of material mixing.

[0035] Refer to Figure 2 and Figure 5 , in a preferred embodiment, the weighing mechanism 4 includes a discharge pipe 401 fixedly connected to the side of the frame 1. The left end of the discharge pipe 401 extends into the spiral feeding cylinder 301. A feeding pipe 402 is fixedly embedded in the lower surface of the discharge pipe 401. A limiting through hole is opened on the side of the feeding pipe 402. A discharge baffle 403 is slidably arranged on the inner wall of the limiting through hole. A weighing platform 404 is fixedly arranged on the side of the frame 1. A placing plate 405 is fixedly arranged on the upper surface of the weighing platform 404.

[0036] It should be noted that the position of the weighing platform 404 corresponds to the feeding pipe 402, and the placing plate 405 is located directly below the feeding pipe 402. A control box 407 is fixedly arranged on the surface of the frame 1, and a weighing display screen 408 is fixedly arranged on the surface of the control box 407. The weighing display screen 408 can display the weighing data of the weighing platform 404 in real time, facilitating the staff to observe the weight of the material.

[0037] A controller is arranged inside the control box 407, and is electrically connected to the weighing display screen 408, the weighing platform 404, the second electric telescopic rod 406, the first electric telescopic rod 305 and the drive motor 9 respectively.

[0038] It should be further noted that an installation frame is fixed on the side of the feeding pipe 402, and a second electric telescopic rod 406 is fixedly connected to the surface of the installation frame. The telescopic end of the second electric telescopic rod 406 is fixedly connected to the surface of the discharge baffle 403, and the size of the discharge baffle 403 matches that of the feeding pipe 402.

[0039] It is worth noting that by setting the weighing mechanism 4, when the material in the mixing box 2 is discharged, the second electric telescopic rod 406 can be used to drive the discharge baffle 403 to move horizontally, thereby opening the discharge end of the feeding pipe 402 for discharging. At the same time, the weighing platform 404 and the placing plate 405 are used to weigh the material in real time. When the material reaches the preset weight, the controller is used to control the second electric telescopic rod 406 to drive the discharge baffle 403 to reset, thereby closing the feeding pipe 402, achieving the effect of integrating real-time weighing and discharging, replacing manual weighing and discharging, improving the discharging speed and accuracy, and further improving work efficiency. The weighing platform 404 is equipped with a pressure sensor of model "LLBLS-I" and is paired with a controller of model "C8051F020 single-chip microcomputer" to achieve automatic weighing control. This is prior art and will not be elaborated here.

[0040] Working principle: When in use, first put different materials into the mixing box 2, then use the driving motor 9 to drive the driving synchronous pulley 10 to rotate, and then drive the driven synchronous pulley 11 to rotate. The driven synchronous pulley 11 drives the rotating shaft rod 5 to rotate, and then drives the spiral mixing blades 6 to stir and mix the materials. After the mixing is completed, start the first electric telescopic rod 305 to drive the movable bottom plate 303 to rotate downward, and the materials enter the discharge square pipe 302 from the rectangular discharge hole 304. Then use the discharge square pipe 302 to input the materials into the spiral feeding cylinder 301. Then use the feeding motor 307 to drive the spiral conveyor rod to rotate, and use the spiral conveyor rod to convey the materials to the discharge pipe 401. Then start the second electric telescopic rod 406 to drive the discharge baffle 403 to move to the left, so that the discharge baffle 403 no longer blocks the bottom port of the blanking pipe 402, thereby opening the blanking pipe 402. Use the receiving container on the surface of the placement plate 405 to collect the materials, and at the same time use the weighing platform 404 to weigh the materials in real time. When the weighing reaches the preset value, the controller in the control box 407 starts the second electric telescopic rod 406 to drive the discharge baffle 403 to move back to its original position, thereby blocking and closing the discharge port of the blanking pipe 402, so as to realize the integrated operation of discharging and weighing the materials.

[0041] As mentioned above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The substitution may be the substitution of some structures, devices, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept should be covered within the protection scope of the present invention.

Claims

1. A thermoplastic pre-coating film multiple raw material mixing device, comprising a frame (1), characterized in that: A mixing box (2) is fixedly arranged on the inner side of the frame (1), a discharging mechanism (3) is arranged at the bottom of the mixing box (2), and a weighing mechanism (4) is arranged on the right side of the frame (1); The discharging mechanism (3) comprises a spiral feeding cylinder (301), a discharging square tube (302) is fixedly arranged between the spiral feeding cylinder (301) and the mixing box (2), a movable bottom plate (303) is rotatably arranged on the inner wall of the discharging square tube (302), a rectangular discharging hole (304) is opened on the inner bottom wall of the mixing box (2), and the rectangular discharging hole (304) has no protrusions or depressions in a sealed state, and a first electric telescopic rod (305) is rotatably connected to the inner wall of the discharging square tube (302), and the telescopic end of the first electric telescopic rod (305) is rotatably connected to the lower surface of the movable bottom plate (303); The weighing mechanism (4) comprises a discharge pipe (401) fixedly connected to the side of the frame (1), the left end of the discharge pipe (401) extending to the interior of the spiral feeding barrel (301), a lowering pipe (402) fixedly embedded in the lower surface of the discharge pipe (401), a limiting through hole being provided on the side of the lowering pipe (402), a discharge baffle (403) being slidably provided on the inner wall of the limiting through hole, a weighing platform (404) being fixedly provided on the side of the frame (1), and a storage plate (405) being fixedly provided on the upper surface of the weighing platform (404).

2. A thermoplastic pre-coating film multiple raw material mixing device according to claim 1, characterized in that: A mounting frame is fixed to the side of the discharge pipe (402), a second electric telescopic rod (406) is fixedly connected to the surface of the mounting frame, a telescopic end of the second electric telescopic rod (406) is fixedly connected to the surface of a discharge baffle (403), and the size of the discharge baffle (403) matches the discharge pipe (402).

3. The thermoplastic pre-coating film multiple raw material mixing device according to claim 1, characterized in that: The position of the weighing platform (404) corresponds to the feeding tube (402), and the storage plate (405) is located directly below the feeding tube (402). A control box (407) is fixedly provided on the surface of the frame (1), and a weighing display screen (408) is fixedly provided on the surface of the control box (407).

4. The thermoplastic pre-coating film multiple raw material mixing device according to claim 1, characterized in that: The size of the movable bottom plate (303) matches the rectangular discharge hole (304); one side of the movable bottom plate (303) is fixedly connected to a rubber connection belt (306); the other side of the rubber connection belt (306) is fixedly connected to the inner wall of the rectangular discharge hole (304).

5. The thermoplastic pre-coating film multiple raw material mixing device according to claim 1, characterized in that: The bottom end of the discharge square tube (302) extends into the interior of the spiral feeding barrel (301); a spiral conveying rod is rotatably arranged on the inner wall of the spiral feeding barrel (301); a feeding motor (307) is fixedly arranged at the left end of the spiral feeding barrel (301); a rotating shaft of the feeding motor (307) extends into the interior of the spiral feeding barrel (301) and is fixedly connected to the end of the spiral conveying rod.

6. The thermoplastic pre-coating film multiple raw material mixing device according to claim 1, characterized in that: The inner wall of the mixing box (2) is rotatably connected to a rotating shaft (5), two spiral mixing pieces (6) are fixedly arranged on the surface of the rotating shaft (5), and a plurality of stirring connecting rods (7) are fixedly arranged between the spiral mixing pieces (6) and the rotating shaft (5).

7. The device for mixing multiple raw materials for thermoplastic pre-coating film according to claim 6, characterized in that: A drive box (8) is fixedly arranged on the left side of the frame (1), a drive motor (9) is fixedly arranged outside the drive box (8), a rotating shaft of the drive motor (9) extends into the interior of the drive box (8) and is fixedly connected to a drive synchronous wheel (10), one end of the rotating shaft (5) extends into the interior of the drive box (8) and is fixedly arranged to a driven synchronous wheel (11), and a transmission belt (12) is arranged between the drive synchronous wheel (10) and the driven synchronous wheel (11).

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