A winding device for film production

Abstract

The utility model belongs to the film production technical field, concretely relates to a winding device for film production, including base, the top of base is fixed with stand one and stand two, is installed with the winding shaft subassembly on stand one and rotates, winding shaft subassembly passes through the drive connection motor of belt drive mechanism, still be installed with support subassembly on the base, support subassembly includes connecting seat, the one end of connecting arm is rotatably connected with connecting seat through the pin shaft, the one end of pneumatic cylinder is rotatably connected with the side of connecting arm away from connecting seat through the pin shaft, the other end of pneumatic cylinder is rotatably connected with base, the one end of connecting arm away from connecting seat is fixed with lower support seat, lower support seat is connected with upper support seat through quick -lock axle, lower support seat, upper support seat are adapted cover and are installed in the upper and lower sides of bearing in winding shaft subassembly. Support subassembly can support the one end of winding shaft subassembly to make winding shaft subassembly keep stable rotation in the winding process, and can conveniently with winding shaft subassembly break away, and it is convenient to the loading and unloading of winding drum.

Description

Technical Field

[0001] This utility model belongs to the field of film production technology, and specifically relates to a winding device for film production. Background Technology

[0002] In the film production process, the winding device is a key piece of equipment that determines the quality of the finished film and production efficiency. Its core requirements are "stable winding (avoiding film wrinkles and uneven tension)" and "convenient loading and unloading of the winding drum (reducing downtime)." Currently, traditional film winding devices have significant technical deficiencies in meeting these two requirements, making them unsuitable for high-efficiency production scenarios.

[0003] On the one hand, insufficient stability of the take-up shaft leads to poor winding quality. Traditional take-up devices often use a "single-end fixed + other end overhang" structure (only one end is mounted on the stand via a bearing, the other end is unsupported). During winding, as the film roll diameter increases (from an initial diameter of 100mm to over 500mm), the overhanging end will experience significant deflection due to the increased weight (maximum deflection can reach 3-5mm), causing the take-up shaft axis to shift. This shift will cause the film to be "tight on one side and loose on the other" during winding, and some areas will also develop wrinkles due to uneven stress. At the same time, the axis shift will accelerate the wear of the take-up shaft and bearings, requiring bearing replacement every month, increasing maintenance costs. Although some improved devices add a fixed support at the overhanging end, the support structure is rigidly connected to the take-up shaft. When loading and unloading the take-up roll, the support component must be disassembled first, which is cumbersome and cannot balance stability and convenience.

[0004] On the other hand, the loading and unloading process of winding drums is cumbersome and has low production efficiency. Traditional winding drum installation requires steps such as "aligning the winding shaft → manually tightening the locking devices (such as set screws and chucks) → checking coaxiality", which takes a long time to load and unload a single roll. Disassembly requires reverse operation, especially when the winding shaft is slightly deformed due to wear, the locking devices are prone to jamming, and tools such as wrenches and hammers are needed to forcibly disassemble it, further extending downtime and seriously restricting the improvement of production capacity. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide a film winding device for film production, which solves the problems of existing film winding devices, such as the single-end overhang of the winding shaft causing easy deviation leading to film wrinkles, low yield and rapid bearing wear, and cumbersome and time-consuming loading and unloading of the roll.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a film production winding device, comprising a base, a first frame and a second frame fixedly mounted on the top of the base, a guide roller rotatably mounted between the first and second frames, a winding shaft assembly rotatably mounted on the first frame, the winding shaft assembly being connected to a motor via a belt drive mechanism, the motor being fixedly mounted on the first frame, and a support assembly also mounted on the base, the support assembly comprising a connecting seat, the connecting seat being rotatably connected to one end of a connecting arm via a pin, the side of the connecting arm away from the connecting seat being rotatably connected to one end of a cylinder via a pin, the other end of the cylinder being rotatably connected to the base via a pin, a lower support seat being fixedly mounted on the side of the connecting arm away from the connecting seat, the lower support seat being connected to an upper support seat via a quick-lock shaft, and the lower and upper support seats being adapted to cover the upper and lower sides of a bearing in the winding shaft assembly.

[0007] The beneficial effects of this utility model are: the support component can support one end of the winding shaft assembly so that the winding shaft assembly can maintain stable rotation during the winding process, and can be easily disengaged from the winding shaft assembly, which facilitates the loading and unloading of the winding drum.

[0008] To ensure that the lower support seat accurately abuts against the bearing, thereby stably supporting the rotating winding shaft assembly;

[0009] As a further improvement to the above technical solution: a pad is fixed on the top surface of the base, and an extension plate is connected to the end of the connecting arm away from the lower support seat. When the bottom surface of the extension plate is flat and fits the top surface of the pad, the inner wall of the lower support seat is adapted to fit the surface of the bearing.

[0010] The beneficial effects of this improvement are: the pad plate, together with the extension plate, plays a positioning role, so that the connecting arm is supported by the cylinder and fits against the lower side of the bearing, thereby ensuring the stability of the winding shaft assembly rotation when used with the support seat.

[0011] To facilitate the connection between the upper and lower support seats using a quick-lock shaft;

[0012] As a further improvement to the above technical solution: the quick-lock shaft includes an outer rod body, which is threadedly connected to a support seat. A spring is filled inside the outer rod body. A support rod is slidably installed inside the outer rod body above the spring. The top end of the support rod is connected to the bottom end of a variable diameter rod. The diameter of the variable diameter rod gradually decreases from bottom to top, and a sliding rod is connected to the top end of the variable diameter rod. The sliding rod is slidably installed in the outer rod body. A sliding groove is formed through the side of the outer rod body along the radial direction. A steel ball is slidably installed in the sliding groove. A stepped groove with a narrow top and a wide bottom is formed on the lower support seat to accommodate the insertion of the quick-lock shaft.

[0013] The beneficial effects of this improvement are as follows: when the support rod is located inside the steel ball, it provides support for the steel ball, so that part of the steel ball is located outside the outer rod and is locked in the stepped groove opened on the lower support seat, thereby firmly connecting the upper support seat and the lower support seat. When the personnel press the sliding rod to move the support rod to the lower side of the steel ball, the steel ball loses the support on the inner side and moves as a whole to the inner side of the sliding groove, and the outer rod can be smoothly pulled out from the lower support seat.

[0014] To prevent the steel balls from falling out of the sliding groove;

[0015] As a further improvement to the above technical solution: the diameters of the inner and outer ports of the sliding groove are not greater than the diameter of the steel ball.

[0016] The beneficial effect of this improvement is that the steel ball can move in the radial direction of the outer rod in the sliding groove and avoids falling off the outer rod.

[0017] To improve the comfort of using the quick-lock shaft;

[0018] As a further improvement to the above technical solution: a baffle is connected to the top of the outer rod.

[0019] The beneficial effect of this improvement is that the operator can hook the baffle with two fingers and press the slide bar to easily remove the quick-lock shaft and the upper support from the lower support.

[0020] To ensure the stability of the winding assembly;

[0021] As a further improvement to the above technical solution: the take-up shaft assembly includes an air shaft, which is rotatably mounted on a stand. The air shaft has a fixed guide rod holder and a quick-lock head for the guide rod. The inner ring of the bearing is interference-fitted with the journal of the air shaft. The outer diameter of the bearing is not greater than the outer diameter of the air shaft.

[0022] The beneficial effects of this improvement are: the use of the guide rod clamp and the guide rod quick lock head can limit the axial position of the winding drum mounted on the air expansion shaft, ensuring the stability of winding.

[0023] To ensure the stability of the take-up shaft assembly rotation;

[0024] As a further improvement to the above technical solution: the driving pulley and the driven pulley in the belt drive mechanism are respectively fixed to one end of the output shaft of the motor and one end of the air expansion shaft.

[0025] The beneficial effect of this improvement is that the motor can drive the take-up shaft assembly to rotate stably through the belt drive mechanism for take-up operation.

[0026] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the structure of the take-up shaft assembly in this utility model;

[0030] Figure 4 This is a schematic diagram of the support component in this utility model;

[0031] Figure 5 This is a cross-sectional view of the quick-lock shaft of this utility model;

[0032] In the diagram: 1. Base; 2. Stand 1; 3. Stand 2; 4. Pad; 5. Guide roller; 6. Motor; 7. Belt drive mechanism; 8. Rewinding shaft assembly; 81. Air shaft; 82. Smooth rod clamp; 83. Smooth rod quick lock head; 84. Bearing; 9. Support assembly; 91. Connecting seat; 92. Connecting arm; 93. Extension plate; 94. Cylinder; 95. Lower support seat; 96. Upper support seat; 10. Quick lock shaft; 101. Outer rod body; 102. Spring; 103. Support rod; 104. Variable diameter rod; 105. Slide rod; 106. Sliding groove; 107. Steel ball; 108. Baffle. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0034] Example 1:

[0035] like Figure 1As shown in Figure 5: A film production winding device includes a base 1. A first frame 2 and a second frame 3 are fixedly mounted on the top of the base 1. A guide roller 5 is rotatably mounted between the first frame 2 and the second frame 3. A winding shaft assembly 8 is rotatably mounted on the first frame 2. The winding shaft assembly 8 is connected to a motor 6 via a belt drive mechanism 7. The motor 6 is fixed to the first frame 2. A support assembly 9 is also mounted on the base 1. The support assembly 9 includes a connecting seat 91. The connecting seat 91 is rotatably connected to one end of a connecting arm 92 via a pin. The side of the connecting arm 92 away from the connecting seat 91 is rotatably connected to one end of a cylinder 94 via a pin. The other end of the cylinder 94 is rotatably connected to the base 1 via a pin. The connecting arm 92 away from the connecting seat 91... One end of the base 1 is fixed with a lower support seat 95, which is connected to an upper support seat 96 via a quick-lock shaft 10. The lower support seat 95 and the upper support seat 96 are adapted to cover the upper and lower sides of the bearing 84 in the winding shaft assembly 8. The support assembly 9 can support one end of the winding shaft assembly 8 to keep the winding shaft assembly 8 rotating stably during winding, and can be easily disengaged from the winding shaft assembly 8 for easy loading and unloading of the winding drum. A pad 4 is fixed on the top surface of the base 1. An extension plate 93 is connected to the end of the connecting arm 92 away from the lower support seat 95. When the bottom surface of the extension plate 93 is flat and fits against the top surface of the pad 4, the inner wall of the lower support seat 95 fits against the surface of the bearing 84. The pad 4 and the extension plate 93 play a positioning role, so that the connecting arm 92 is positioned... The cylinder 94 is supported and fitted against the lower side of the bearing 84, thus cooperating with the use of the support seat 96 to ensure the stability of the rotation of the winding shaft assembly 8. The quick-lock shaft 10 includes an outer rod body 101, which is threadedly connected to the support seat 96. A spring 102 is filled inside the outer rod body 101. A support rod 103 is slidably installed inside the outer rod body 101 above the spring 102. The top end of the support rod 103 is connected to the bottom end of a reducing rod 104. The diameter of the reducing rod 104 gradually decreases from bottom to top, and a sliding rod 105 is connected to the top end of the reducing rod 104. The sliding rod 105 is slidably installed in the outer rod body 101. A sliding groove 106 is formed on the side of the outer rod body 101 along the radial direction of the outer rod body 101. A steel ball 107 is slidably installed in the sliding groove 106. The lower support 95 has a stepped groove that is narrower at the top and wider at the bottom to accommodate the quick-lock shaft 10. When the support rod 103 is located inside the steel ball 107, it provides support for the steel ball 107, so that a part of the steel ball 107 is located outside the outer rod 101 and is locked in the stepped groove on the lower support 95, thereby stably connecting the upper support 96 and the lower support 95. When a person presses the sliding rod 105 to move the support rod 103 to the lower side of the steel ball 107, the steel ball 107 loses its inner support and moves as a whole to the inside of the sliding groove 106. The outer rod 101 can then be smoothly pulled out from the lower support 95. The diameter of both the inner and outer ends of the sliding groove 106 is not greater than the diameter of the steel ball 107.The steel ball 107 can move radially along the outer rod 101 in the sliding groove 106 and avoids detaching from the outer rod 101. The top of the outer rod 101 is connected to a baffle 108. The operator can hook the baffle 108 with two fingers and press the slide rod 105 to easily remove the quick-lock shaft 10 and the upper support seat 96 from the lower support seat 95. The winding shaft assembly 8 includes an air expansion shaft 81, which is rotatably mounted on the upright 2. The air expansion shaft 81 is locked with a fixed optical rod clamping seat 82 and fitted with an optical rod quick lock. The inner ring of the bearing 84 is interference-fitted with the journal of the air shaft 81. The outer diameter of the bearing 84 is not greater than the outer diameter of the air shaft 81. The use of the guide rod clamp 82 and the guide rod quick lock head 83 can limit the axial position of the winding drum mounted on the air shaft 81, ensuring winding stability. The driving pulley and driven pulley in the belt drive mechanism 7 are respectively fixed to the output shaft of the motor 6 and one end of the air shaft 81. The motor 6 can drive the winding shaft assembly 8 to rotate stably through the belt drive mechanism 7 for winding.

[0036] The beneficial effects of this utility model are as follows: the support component 9 can support one end of the winding shaft assembly 8, ensuring stable rotation of the winding shaft assembly 8 during winding, and can be easily disengaged from the winding shaft assembly 8, facilitating the loading and unloading of the winding drum; the pad plate 4, together with the extension plate 93, plays a positioning role, allowing the connecting arm 92 to be supported against the lower side of the bearing 84 under the support of the cylinder 94, thereby ensuring the stability of the rotation of the winding shaft assembly 8 in conjunction with the use of the upper support seat 96; when the support rod 103 is located inside the steel ball 107, it provides support for the steel ball 107, so that a part of the steel ball 107 is located outside the outer rod body 101 and is locked in the stepped groove opened on the lower support seat 95, thereby firmly connecting the upper support seat 96 and the lower support seat 95. When the personnel press the sliding rod When the support rod 103 moves to the lower side of the steel ball 107, the steel ball 107 loses its inner support and moves as a whole to the inner side of the sliding groove 106, and the outer rod 101 can be smoothly pulled out from the lower support seat 95; the steel ball 107 can move in the sliding groove 106 along the radial direction of the outer rod 101 and avoids falling off the outer rod 101; the operator can hook the baffle 108 with two fingers and press the slide rod 105 to easily remove the quick lock shaft 10 and the upper support seat 96 from the lower support seat 95; the use of the smooth rod clamp 82 and the smooth rod quick lock head 83 can limit the axial position of the winding drum mounted on the air expansion shaft 81 to ensure the stability of winding; the motor 6 can drive the winding shaft assembly 8 to rotate stably through the belt transmission mechanism 7 to perform the winding work.

[0037] The working principle of this technical solution is as follows: First, the take-up drum is fitted onto the air expansion shaft 81 of the take-up shaft assembly 8. The take-up drum is pushed so that one end fits against the guide rod clamp 82. Then, the guide rod quick lock head 83 is slid to the other end of the take-up drum, and the lock head handle is rotated to fix the take-up drum axially. Next, compressed air is introduced into the air expansion shaft 81—the air circuit system of the air expansion shaft 81 adopts existing technology and does not require structural design improvements. This causes the expansion blocks on the surface of the air expansion shaft 81 to extend radially and firmly press against the inner wall of the take-up drum, thus completing the fixation of the take-up drum and the air expansion shaft 81.

[0038] The cylinder 94 of the support assembly 9 is activated, and the cylinder piston rod extends to push the connecting arm 92 to rotate upward around the pin shaft of the connecting seat 91 until the bottom surface of the extension plate 93 on the connecting arm 92 is flat and fits against the top surface of the pad 4 on the base 1. At this time, the inner wall of the lower support seat 95 fits perfectly against the lower surface of the bearing 84 in the winding shaft assembly 8. Then, the upper support seat 96 is placed on the upper side of the bearing 84, and the outer rod 101 of the quick-lock shaft 10 is inserted into the corresponding hole of the upper support seat 96 and the lower support seat 95. The spring 102 inside the outer rod 101 pushes the support rod 103 to move upward, so that the variable diameter rod 104 presses against the steel ball 107. The steel ball 107 extends out of the sliding groove 106 and is locked into the stepped groove of the lower support seat 95, realizing the quick locking of the upper and lower support seats. At this time, the bearing 84 is completely wrapped and supported, and both ends of the winding shaft assembly 8 are stably supported.

[0039] Start the motor 6 on the stand 2. The motor output shaft drives the air expansion shaft 81 of the take-up shaft assembly 8 to rotate stably through the belt transmission mechanism 7. After guiding one end of the film to be wound through the guide roller 5, it is fixed on the surface of the take-up drum.

[0040] During the winding process, the air shaft 81 drives the winding drum to rotate synchronously. The film is evenly wound onto the winding drum under the tension adjustment of the guide roller 5. When the film on the winding drum reaches the preset thickness and is judged by the roll diameter detection device, the motor 6 is stopped, the compressed air of the air shaft 81 is cut off, the air shaft expansion block contracts, and it separates from the inner wall of the winding drum. Then, the operator hooks two fingers onto the baffle 108 of the quick-lock shaft 10 and presses down the slide bar 105. The slide bar drives the diameter-changing rod 104 and the support rod 103 to move downward. When the support rod 103 moves from the inside of the steel ball 107 to the lower side, the steel ball retracts into the sliding groove 106 after losing support. At this time, the quick-lock shaft 10 can be easily pulled out from the lower support seat 95, and the upper support seat 96 is unlocked and separated from the lower support seat. The cylinder 94 is activated, and the piston rod retracts to pull the connecting arm 92 downward, and the lower support seat 95 is disengaged from the bearing 84. Finally, the quick-lock head 83 of the light rod is released, and the wound-up drum is pulled out from the air expansion shaft 81, so that the next roll can be installed.

[0041] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A winding device for film production, characterized in that: The system includes a base (1), on which a first stand (2) and a second stand (3) are fixedly mounted. A guide roller (5) is rotatably mounted between the first stand (2) and the second stand (3). A take-up shaft assembly (8) is rotatably mounted on the first stand (2). The take-up shaft assembly (8) is connected to a motor (6) via a belt drive mechanism (7). The motor (6) is fixed on the first stand (2). A support assembly (9) is also mounted on the base (1). The support assembly (9) includes a connecting seat (91). The connecting seat (91) is rotatably mounted via a pin. One end of the connecting arm (92) is connected to the connecting arm (92), and the side of the connecting arm (92) away from the connecting seat (91) is rotatably connected to one end of the cylinder (94) via a pin. The other end of the cylinder (94) is rotatably connected to the base (1) via a pin. The end of the connecting arm (92) away from the connecting seat (91) is fixedly provided with a lower support seat (95). The lower support seat (95) is connected to an upper support seat (96) via a quick-lock shaft (10). The lower support seat (95) and the upper support seat (96) are adapted to fit the upper and lower sides of the bearing (84) covered in the winding shaft assembly (8).

2. The film production winding device according to claim 1, characterized in that: The top surface of the base (1) is fixed with a pad (4), and the end of the connecting arm (92) away from the lower support (95) is connected to an extension plate (93). When the bottom surface of the extension plate (93) is flat and fits the top surface of the pad (4), the inner wall of the lower support (95) is adapted to fit the surface of the bearing (84).

3. The film production winding device according to claim 1, characterized in that: The quick-lock shaft (10) includes an outer rod body (101), which is threadedly connected to a support seat (96). A spring (102) is filled inside the outer rod body (101). A support rod (103) is slidably installed inside the outer rod body (101) above the spring (102). The top end of the support rod (103) is connected to the bottom end of a variable diameter rod (104), the diameter of which gradually increases from bottom to top. The top end of the reducing rod (104) is connected to a slide rod (105), which is slidably installed in the outer rod body (101). A sliding groove (106) is provided on the side of the outer rod body (101) along the radial direction. A steel ball (107) is slidably installed in the sliding groove (106). A stepped groove with a narrow top and a wide bottom is provided on the lower support seat (95) to accommodate the insertion quick-lock shaft (10).

4. A film production winding device according to claim 3, characterized in that: The diameters of the inner and outer ports of the sliding groove (106) are not greater than the diameter of the steel ball (107).

5. A film production winding device according to claim 3, characterized in that: A baffle (108) is connected to the top of the outer rod (101).

6. A film production winding device according to claim 1, characterized in that: The take-up shaft assembly (8) includes an air shaft (81), which is rotatably mounted on the stand (2). The air shaft (81) has a fixed guide rod holder (82) and a guide rod quick lock head (83) fitted on it. The inner ring of the bearing (84) is interference-fitted with the journal of the air shaft (81). The outer diameter of the bearing (84) is not greater than the outer diameter of the air shaft (81).

7. A film production winding device according to claim 1, characterized in that: The driving pulley and driven pulley in the belt drive mechanism (7) are respectively fixed to one end of the output shaft of the motor (6) and one end of the air expansion shaft (81).

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