Casting machine for preparing plastic film
By installing a friction detection device between the detection roller and the conveyor belt in the casting machine, the problem of real-time thickness detection during the casting machine production process is solved, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-03-31
AI Technical Summary
In the process of producing plastic film, existing casting machines need to detect the thickness of the plastic film in real time to avoid the production of defective products. However, the detection is usually carried out after the product is produced, which is time-consuming, labor-intensive and increases labor costs.
A detection device, including a detection roller and a conveyor belt, is installed in the casting machine. The thickness is detected by the friction between the detection roller and the plastic film, and insufficient thickness is detected in time, realizing online detection.
It enables real-time detection of plastic film thickness during production, reducing defect rates, improving product quality, and reducing the labor required for manual inspection.
Smart Images

Figure CN224060428U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of plastic film production, especially to a plastic film preparation casting machine. BACKGROUND
[0002] The application of plastic film covers packaging, agriculture, industry and many other fields, among which packaging application occupies a dominant position, including food, medicine, daily necessities and other industries. According to the difference of material characteristics, different films can also be applied to barrier preservation, engineering seepage prevention, electronic component protection and other technical scenes.
[0003] The casting machine refers to a special equipment for making cast film. High-precision electronic ceramic casting machine uses alumina as the main raw material for ceramic casting. The crushed powder is mixed with binder, plasticizer, dispersant and solvent to form a slurry with certain viscosity. The slurry flows from the hopper and is coated on the special base tape by the scraper with a certain thickness. After drying and curing, the green tape is peeled off to become a green tape film. Then, according to the size and shape of the finished product, the green tape is processed by punching, lamination and other processing, and the blank finished product is obtained. It has the advantages of low cost, high quality, non-toxic, simple production process, etc.
[0004] In the production and processing process of plastic film, casting machine is needed. At present, the casting machine on the market is usually used to produce plastic film with different thickness according to the needs. However, real-time detection measures are needed during production, which means that after the product is produced, the staff needs to detect it. On the one hand, the product has been produced, and the subsequent detection of defective products needs to be handled, which is time-consuming and laborious. On the other hand, it increases the labor of the staff. UTILITY MODEL CONTENT
[0005] In order to overcome the technical defects of the prior art, the utility model provides a plastic film preparation casting machine
[0006] The technical solution adopted by the utility model is: including support, the support is arranged in "U" type, cutting the support inner chamber installs the conveyer belt, the conveyer belt outer wall front side installs the main control unit, and the support outer wall left side upper fixed installation has the extruder, the support top installs the scraping device, the scraping device right side is provided with cooling device, the cooling device right side is provided with detection device, the detection device and cooling device all install in the support top, the support outer wall still installs the winding device, the winding device extends to the support outer wall right side.
[0007] Preferably, the detection device comprises a vertical frame, a bracket top is fixedly installed on the vertical frame, a motor is fixedly installed on the bracket top, a screw rod is fixedly installed at the bottom of the motor, the bottom end of the screw rod penetrates through the bracket top and is rotationally connected with the bracket top, a movable plate is threadedly connected with the outer side of the screw rod, the outer wall of the movable plate is movably connected with the inner wall of the vertical frame, two vertical plates are fixedly installed at the bottom of the movable plate, clamping blocks are insertedly installed at the bottom of the two vertical plates, and a detection roller is rotationally connected between the two clamping blocks.
[0008] In order to monitor the thickness of the produced plastic film, when the thickness is insufficient, the staff can see it in time and handle it in time, so as to reduce the defective rate of products and improve the quality of products.
[0009] Preferably, an anti-skid strip is woundly installed on the outer wall of the detection roller, magic tapes are embeddedly installed at the two ends of the anti-skid strip, and the two magic tapes are pasted with each other.
[0010] In order to improve the friction between the detection roller and the surface of the plastic film and improve the precision of the detection device.
[0011] Preferably, a plurality of positioning holes are formed in the outer walls of the two clamping blocks, clamping grooves are formed in the bottoms of the two vertical plates, the clamping blocks are inserted into the inner cavities of the corresponding clamping grooves, and a plurality of positioning bolts are threadedly connected with the outer wall of the vertical plate, and one end of the positioning bolt is threadedly connected with the inner cavity of the corresponding positioning hole.
[0012] In order to realize the disassembly and replacement of the detection roller, the clamping blocks and the vertical plates are separated.
[0013] Preferably, circular shafts are fixedly installed at the two ends of the detection roller, fan blades are installed at the distal ends of the two circular shafts, movable blocks are rotationally connected with the two circular shafts, vertical grooves two are formed in the outer walls of the vertical frame on both sides, the two movable blocks are respectively slidably connected with the inner cavities of the corresponding vertical grooves two, and side grooves are formed in the inner walls of the vertical grooves two.
[0014] In order to facilitate the staff to intuitively see the detection result.
[0015] Preferably, a stop block is fixedly installed at the bottom end of the screw rod.
[0016] In order to avoid the separation of the screw rod and the movable plate and improve the stability of the device.
[0017] Preferably, vertical blocks are fixedly installed on the outer walls of the movable plate on both sides, two vertical grooves one are formed in the outer wall of the vertical frame, and the vertical blocks are slidably connected with the inner cavities of the corresponding vertical grooves one.
[0018] In order to improve the stability of the vertical movement of the movable plate 78 and limit the vertical movement track thereof.
[0019] Preferably, the front side of the vertical block is fixedly provided with a pointer, and a scale bar is arranged outside the pointer, and the scale bar is fixedly connected with the outer wall of the vertical frame.
[0020] In order to improve the precision of the distance between the detection roller and the conveying belt, high-precision detection operation is realized.
[0021] The utility model discloses an advantageous effect is: through being provided with detection roller, can in the production process of plastic film, drive motor makes motor drive screw rotation, drives movable plate down through the threaded connection of screw and movable plate, movable plate drives two vertical boards down, and two vertical boards drive clamping block down respectively, and two clamping blocks jointly drive detection roller down, and when antiskid strip on detection roller moves to appropriate height, the distance between antiskid strip and conveying belt is the thickness of plastic film, and when subsequent plastic film moves from the below of detection roller, will be driven by friction force and rotate synchronously with antiskid strip winding on the outside of detection roller, and antiskid strip drives the rotation of the fan blade on detection roller, if the fan blade does not rotate synchronously in the production process, then indicate that the thickness is insufficient, can intuitively check whether the thickness of plastic film in the production process is qualified. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is the external structure schematic diagram of the utility model.
[0023] Figure 2 It is the structure schematic diagram of the detection device of the utility model.
[0024] Figure 3 It is the local structure schematic diagram of the detection device of the utility model.
[0025] Figure 4 It is the explosion structure schematic diagram of the utility model Figure 3 .
[0026] Figure 5 It is the expansion structure schematic diagram of antiskid strip of the utility model.
[0027] Mark explanation: in drawing: 1, support; 2, conveying belt; 3, main control unit; 4, extruder; 5, scraping device; 6, cooling device; 7, detection device; 71, vertical frame; 72, vertical groove one; 73, vertical groove two; 74, side groove; 75, motor; 76, screw; 77, stop block; 78, movable plate; 79, vertical block; 710, pointer; 711, scale bar; 712, vertical board; 713, clamping groove; 714, positioning bolt; 715, clamping block; 716, detection roller; 717, antiskid strip; 7171, magic tape; 718, positioning hole; 719, round shaft; 720, fan blade; 721, movable block; 8, winding device. DETAILED DESCRIPTION
[0028] The utility model will be further described in connection with the drawings:
[0029] As shown in the figure, the embodiment provides a plastic film preparation casting machine, which comprises a support 1, the support 1 is arranged in a "U" shape, a conveying belt 2 is installed in the cavity of the support 1, a main control device 3 is installed on the front side of the outer wall of the conveying belt 2, an extruder 4 is fixedly installed on the left side of the outer wall of the support 1, a scraping device 5 is installed on the top of the support 1, a cooling device 6 is arranged on the right side of the scraping device 5, a detection device 7 is arranged on the right side of the cooling device 6, the detection device 7 and the cooling device 6 are both installed on the top of the support 1, and a winding device 8 is also installed on the outer wall of the support 1 and extends to the right side of the outer wall of the support 1.
[0030] In use, the plastic film is extruded by the extruder 4, conveyed by the conveying belt 2, scraped by the scraping device 5, cooled by the cooling device 6, and then detected by the detection device 7 to check whether the thickness is qualified. If the thickness is not qualified, the staff controls the main control device 3 to stop the operation of the equipment, and the qualified products produced subsequently are wound by the winding device 8, so that the operation is convenient.
[0031] As an optional implementation, the detection device 7 comprises a vertical support 71, the vertical support 71 is fixedly installed on the top of the support 1, a motor 75 is fixedly installed on the top of the vertical support 71, a screw rod 76 is fixedly installed at the bottom of the motor 75, the bottom end of the screw rod 76 penetrates through the top of the vertical support 71 and is rotatably connected with the top of the vertical support 71, a movable plate 78 is threadedly connected with the outer side of the screw rod 76, the outer wall of the movable plate 78 is movably connected with the inner wall of the vertical support 71, two vertical plates 712 are fixedly installed at the bottom of the movable plate 78, two clamping blocks 715 are insertedly installed at the bottom of the two vertical plates 712, and a detection roller 716 is rotatably connected between the two clamping blocks 715.
[0032] In use, first, the distance between the detection roller 716 and the conveying belt 2 is adjusted according to the thickness of the plastic film. At this time, the motor 75 can be driven to rotate the screw rod 76, the movable plate 78 vertically moves, the two vertical plates 712 at the bottom of the movable plate 78 synchronously move, the two vertical plates 712 respectively drive the corresponding clamping blocks 715 to move, and the two clamping blocks 715 jointly drive the detection roller 716 to move. After the detection roller 716 moves to the appropriate height, the motor 75 is turned off. At this time, the detection roller 716 is positioned under the self-locking of the screw rod 76 and the movable plate 78. When the subsequent plastic film passes through the detection roller 716, if the thickness is qualified, the detection roller 716 will self-rotate under the friction between the outer wall of the detection roller 716 and the outer wall of the plastic film, which can be directly observed by the staff. If the detection roller 716 does not self-rotate, it means that the thickness is not qualified.
[0033] As an optional implementation, anti-skid strips 717 are woundly installed on the outer wall of the detection roller 716, and magic tapes 7171 are embeddedly installed at both ends of the anti-skid strips 717.
[0034] In this embodiment, in use, the plurality of anti-skid strips 717 are wound and fixedly installed on the outer wall of the detection roller 716, thereby increasing the friction between the outer wall of the detection roller 716 and the outer wall of the plastic film, and further ensuring that the detection roller 716 can rotate under the action of friction, thereby achieving stable detection effect. Subsequently, the anti-skid strips 717 can also be detached from and replaced on the outer wall of the detection roller 716.
[0035] As an optional implementation, a plurality of positioning holes 718 are formed in the outer wall of each of the two clamping blocks 715, a clamping groove 713 is formed in the bottom of each of the two vertical plates 712, the clamping block 715 is inserted into the inner cavity of the corresponding clamping groove 713, and a plurality of positioning bolts 714 are threadedly connected to the outer wall of the vertical plate 712 and penetrate the outer wall of the vertical plate 712.
[0036] In this embodiment, in use, if the detection roller 716 needs to be detached, the plurality of positioning bolts 714 can be removed to release the threaded connection between the clamping block 715 and the clamping groove 713, thereby further achieving the detachment of the detection roller 716. Subsequently, the detection roller 716 can be replaced or the surface of the detection roller 716 can be cleaned.
[0037] As an optional implementation, a circular shaft 719 is fixedly installed at each end of the detection roller 716, a fan blade 720 is installed at the end of each of the two circular shafts 719 away from each other, and a movable block 721 is rotatably connected to each of the two circular shafts 719 and penetrates the same. A vertical groove two 73 is formed in each of the two sides of the outer wall of the vertical frame 71, and the two movable blocks 721 are respectively slidably connected to the inner cavities of the corresponding vertical grooves two 73. A side groove 74 is formed in the inner wall of the vertical groove two 73.
[0038] In this embodiment, when the detection roller 716 rotates, the detection roller 716 drives the two circular shafts 719 to rotate synchronously, and the two circular shafts 719 drive the corresponding fan blades 720 to rotate. The rotation of the fan blades 720 enables the staff to more intuitively see the detection result.
[0039] As an optional implementation, a stop block 77 is fixedly installed at the bottom end of the screw rod 76.
[0040] In this embodiment, in use, the provision of the stop block 77 can effectively prevent the screw rod 76 from being detached from the movable plate 78, thereby improving the stability of the overall device.
[0041] As an optional implementation, a vertical block 79 is fixedly installed on each of the two sides of the outer wall of the movable plate 78, two vertical grooves one 72 are formed in the outer wall of the vertical frame 71, and the vertical block 79 is slidably connected to the inner cavities of the corresponding vertical grooves one 72.
[0042] In the embodiment, when in use, the movable plate 78 drives the two outer vertical blocks 79 to vertically slide in the corresponding vertical slot 72 when vertically moving, thereby limiting the vertical moving track of the movable plate 78 and improving the stability.
[0043] As an optional implementation, the front vertical block 79 is fixedly installed with a pointer 710 at the front side, and the pointer 710 is externally provided with a scale bar 711 fixedly connected with the outer wall of the vertical frame 71.
[0044] In the embodiment, when in use, the front vertical block 79 drives the pointer 710 to synchronously move when the movable plate 78 vertically moves, and with the different scale values on the scale bar 711 pointed by the pointer 710, the specific values of the upward and downward movement of the movable plate 78 and the detection roller 716 can be directly observed, thereby improving the detection precision.
[0045] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and the person skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and the utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and the equivalents thereof.
Claims
1. A plastic film production casting machine comprising a support (1), characterized in that: The support (1) is arranged in a "U" shape, the inner cavity of the support (1) is provided with a conveying belt (2), the outer wall of the conveying belt (2) is provided with a main control device (3), the outer wall of the support (1) is fixedly provided with an extruder (4) on the left side, the top of the support (1) is provided with a scraping device (5), the right side of the scraping device (5) is provided with a cooling device (6), the right side of the cooling device (6) is provided with a detection device (7), the detection device (7) and the cooling device (6) are both installed on the top of the support (1), and the outer wall of the support (1) is also provided with a winding device (8) extending to the right side of the outer wall of the support (1).
2. The plastic film manufacturing casting machine according to claim 1, characterized in that: The detection device (7) comprises a vertical support (71), the vertical support (71) is fixedly installed on the top of the support (1), the top of the vertical support (71) is fixedly provided with a motor (75), the bottom of the motor (75) is fixedly provided with a screw rod (76), the bottom end of the screw rod (76) penetrates through the top of the vertical support (71) and is rotationally connected with the top of the vertical support (71), and the outer side of the screw rod (76) is threadedly connected with a movable plate (78).
3. The plastic film manufacturing casting machine according to claim 2, characterized in that: The outer wall of the detection roller (716) is provided with a non-slip strip (717), and the both ends of the non-slip strip (717) are embeddedly provided with magic tapes (7171), and the two magic tapes (7171) are adhered to each other.
4. The plastic film manufacturing casting machine according to claim 2, characterized in that: A plurality of positioning holes (718) are formed in the outer wall of the two clamping blocks (715), and a clamping groove (713) is formed in the bottom of each vertical plate (712), the clamping block (715) is inserted into the inner cavity of the corresponding clamping groove (713), and a plurality of positioning pins (714) are threadedly connected with the outer wall of the vertical plate (712), and one end of the positioning pin (714) is threadedly connected with the inner cavity of the corresponding positioning hole (718).
5. The plastic film manufacturing casting machine according to claim 2, wherein: The both ends of the detection roller (716) are fixedly provided with a circular shaft (719), the far ends of the two circular shafts (719) are provided with a fan blade (720), and the outer wall of each circular shaft (719) is rotationally connected with a movable block (721), the outer wall of the vertical support (71) is provided with a vertical groove two (73) on both sides, and the two movable blocks (721) are respectively slidably connected with the inner cavities of the corresponding vertical grooves two (73), and a side groove (74) is formed in the inner wall of the vertical groove two (73).
6. The plastic film manufacturing casting machine according to claim 2, characterized in that: The bottom end of the screw rod (76) is fixedly provided with a stop block (77).
7. The plastic film manufacturing casting machine according to claim 2, wherein: The outer wall of the movable plate (78) is fixedly provided with a vertical block (79) on both sides, and the outer wall of the vertical support (71) is provided with two vertical grooves one (72), and the vertical block (79) is slidably connected with the inner cavities of the corresponding vertical grooves one (72).
8. The plastic film manufacturing casting machine according to claim 7, characterized in that: The front side of the vertical block (79) is fixedly provided with a pointer (710), and the outer side of the pointer (710) is provided with a scale bar (711), which is fixedly connected with the outer wall of the vertical frame (71).