Automatic film receiving and unwinding unit
By designing an automatic film splicing and unwinding unit, the automatic splicing and cutting of the roll material is achieved by using a cylinder to drive the swing arm and transmission system. This solves the problem that traditional unwinding devices require machine downtime to replace the roll material, thus improving production efficiency and automation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-06
- Publication Date
- 2026-03-13
AI Technical Summary
In the existing roll material production process, traditional unwinding devices need to be stopped when changing roll materials, resulting in low production efficiency, and automatic roll changing equipment requires manual intervention.
An automatic film splicing and unwinding unit was designed, including a central shaft, a support, an unwinding shaft, and a film splicing assembly. The swing arm is driven by a cylinder to drive the receiving pressure roller and the cutter, realizing the automatic connection and cutting of the target roll and the spare roll. The unwinding motor and transmission system realize the automatic exchange and continuous conveying of the unwinding shaft.
It enables automated continuous unwinding of roll materials, reduces manual intervention, improves production efficiency and automation, and ensures the continuity and stability of production.
Smart Images
Figure CN223990693U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of roll material processing, and in particular relates to an automatic film splicing and unwinding unit. Background Technology
[0002] In the production or processing of roll materials (such as films, metal foils, and paper tapes), multiple rolls of material are typically required to be continuously fed to downstream equipment, such as printing, coating, or laminating equipment for paper tapes. Traditional unwinding devices require shutdown and replacement with a new roll when a single roll is exhausted, leading to reduced production efficiency. Although some existing technologies include automated roll-changing equipment, manual intervention is still required when connecting new and old rolls. Therefore, it is necessary to solve the aforementioned technical problems. Utility Model Content
[0003] The purpose of this application is to provide an automatic film splicing and unwinding unit to solve the technical problem of low automation in existing continuous unwinding equipment.
[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide an automatic film splicing and unwinding unit, comprising:
[0005] Wall panels;
[0006] The central shaft is rotatably mounted on the wall panel;
[0007] A bracket is connected to the central axis and is able to rotate with the central axis;
[0008] An unwinding shaft is connected to the bracket and is spaced parallel to the central axis; at least two unwinding shafts are evenly arranged around the central axis.
[0009] The film splicing assembly includes a main cylinder and a swing arm respectively hinged to the wall panel, and a receiving pressure roller and a cutter spaced apart on the swing arm. The power end of the main cylinder is hinged to the swing arm, and all rotation axes of the main cylinder and the swing arm are parallel to the central axis. The receiving pressure roller is parallel to the unwinding shaft and can be driven by the swing arm to approach or move away from one of the unwinding shafts. A gap is formed between the receiving pressure roller and the unwinding shaft for the target roll to pass through. The cutter and the receiving pressure roller are arranged sequentially at intervals along the feeding direction of the target roll, and the cutter can be driven by the swing arm to enter or exit the feeding path of the target roll.
[0010] Optionally, the film-coating assembly includes a receiving shaft rotatably mounted on the swing arm and a rotating arm connected to the receiving shaft, and also includes a receiving cylinder hinged to the swing arm and a first pull arm hinged to the power end of the receiving cylinder.
[0011] The receiving shaft is parallel to the receiving pressure roller and is connected to the receiving pressure roller through the rotating arm. The rotating shafts of the receiving cylinder and the first pull arm are both parallel to the receiving shaft. The end of the first pull arm away from the receiving cylinder is connected to the receiving shaft so that the receiving pressure roller can be driven to rotate by the receiving cylinder.
[0012] Optionally, the film-coating assembly includes a cutting shaft rotatably mounted on the swing arm and a knife holder connected to the cutting shaft, and also includes a cutting cylinder hinged to the swing arm and a second pull arm hinged to the power end of the cutting cylinder;
[0013] The cutting shaft is parallel to the unwinding shaft and connected to the cutter via the cutter holder. The rotation shafts of the cutting cylinder and the second pull arm are both parallel to the cutting shaft. The end of the second pull arm away from the cutting cylinder is connected to the cutting shaft so that the cutter can be driven to rotate by the cutting cylinder.
[0014] Optionally, the film splicing assembly further includes guide rollers connected to the support;
[0015] The guide rollers are arranged in a number corresponding to the number of unwinding shafts and are evenly and alternately distributed around the central axis and the unwinding shafts. The guide rollers are also parallel to the unwinding shafts and are used to carry the target roll material so that the target roll material passes through the gap between the unwinding shaft and the receiving pressure roller.
[0016] Optionally, the automatic film splicing and unwinding unit further includes an unwinding motor, a drive gear, and a driven gear;
[0017] The number of unwinding motors corresponds to the number of unwinding shafts. The driving gear is connected to the power end of the unwinding motor, and the driven gear is coaxially connected to the unwinding shaft and is driven by the driving gear.
[0018] Optionally, the unwinding motor is fixedly mounted on the wall panel, and the automatic film unwinding unit further includes a number of sleeves and a number of bridge gears corresponding to the number of unwinding motors;
[0019] Several sleeves are coaxially mounted on the central shaft, and all the sleeves are stacked radially along the central shaft. Adjacent sleeves are rotatably connected to each other and to the central shaft, and all the sleeves can rotate independently around the central shaft. A front drive gear and a rear drive gear coaxial with the central shaft are respectively installed at both ends of the sleeves. Each front drive gear is driven by a driving gear, and each rear drive gear is driven by a set of intermediate gears to a driven gear. The intermediate gears are rotatably mounted on the bracket.
[0020] Optionally, the automatic film splicing and unwinding unit further includes an intermediate shaft rotatably mounted on the wall panel and perpendicularly passing through the wall panel, with intermediate gears coaxially connected to both ends of the intermediate shaft;
[0021] The intermediate shaft connects the drive gear and the front drive gear through the intermediate gears at both ends.
[0022] Optionally, the automatic film splicing and unwinding unit further includes a rotary motor and a worm gear and worm connected by a transmission;
[0023] The indexing motor is mounted on the wall panel, the worm gear is coaxially connected to the central shaft, and the worm is connected to the power end of the indexing motor. The indexing motor is connected to the central shaft through the worm gear and the worm and is used to drive the central shaft to rotate relative to the wall panel.
[0024] Optionally, the automatic film splicing and unwinding unit further includes an angle sensor connected to the central shaft and used to detect the angle through which the central shaft rotates;
[0025] The angle sensor is communicatively connected to the rotary motor.
[0026] The beneficial effects of the automatic film splicing and unwinding unit provided in this application are as follows: Compared with the prior art, in the automatic film splicing and unwinding unit provided in this application, at least two unwinding shafts connected to the bracket can be used to unwind the target roll and store spare rolls, respectively. When the central shaft rotates on the wall panel, it can drive the bracket connected to the central shaft to rotate, so that at least two unwinding shafts connected to the bracket and evenly distributed around the central shaft can exchange positions. Since the receiving pressure roller parallel to the unwinding shaft in the film splicing assembly can form an interval between it and the unwinding shaft storing spare rolls for the target roll to pass through, and since the cutter and The receiving pressure rollers are arranged sequentially at intervals along the feeding direction of the target roll. Therefore, when the main cylinder drives the receiving pressure rollers to approach the unwinding shaft through the swing arm, it can press the target roll being conveyed onto the unwinding shaft. The cutter connected to the swing arm can also move with the swing arm and cut the target roll being conveyed at a certain distance from the spare roll. In this way, when the end of the spare roll is pre-attached with adhesive material, the target roll can automatically form a connection with the spare roll. Thus, the automatic film splicing and unwinding unit provided in this application can unwind continuously and more automatically, which is far superior to the prior art. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of the automatic film splicing and unwinding unit in the embodiments of this application. Figure 1 ;
[0029] Figure 2 This is a schematic diagram of the overall structure of the automatic film splicing and unwinding unit in the embodiments of this application. Figure 2 ;
[0030] Figure 3 This is a schematic diagram of the overall structure of the automatic film splicing and unwinding unit in the embodiments of this application. Figure 3 ;
[0031] Figure 4 This is a side view of the overall structure of the automatic film splicing and unwinding unit in the embodiments of this application;
[0032] Figure 5 For along Figure 4 Cross-sectional view of line AA in the middle;
[0033] Figure 6 For along Figure 5 Cross-sectional view of the middle BB line.
[0034] In the figure, the following labels are used: 101, wall panel; 102, central shaft; 103, bracket; 104, unwinding shaft; 105, main cylinder; 106, swing arm; 107, receiving pressure roller; 108, cutter; 109, receiving rotating shaft; 110, rotating arm; 111, receiving cylinder; 112, first pulling arm; 113, cutting rotating shaft; 114, knife holder; 115, cutting cylinder; 116, second pulling arm. 117. Arm; 118. Guide roller; 119. Unwinding motor; 120. Drive gear; 121. Sleeve; 122. Bridge gear; 123. Front drive gear; 124. Rear drive gear; 125. Intermediate shaft; 126. Intermediate gear; 127. Indexing motor; 128. Worm gear; 129. Worm; 130. Angle sensor; 201. Target roll material; 202. Spare roll material. Detailed Implementation
[0035] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0037] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0039] Please refer to the following: Figures 1 to 6 The present application provides an automatic film splicing and unwinding unit according to an embodiment. This automatic film splicing and unwinding unit includes a wall panel 101, a central shaft 102, a support 103, an unwinding shaft 104, and a film splicing assembly. Wherein:
[0040] A central shaft 102 is rotatably mounted on a wall panel 101; a bracket 103 is connected to the central shaft 102 and can rotate with the central shaft 102; an unwinding shaft 104 is connected to the bracket 103 and is arranged parallel to and spaced apart from the central shaft 102, with at least two unwinding shafts 104 evenly arranged around the central shaft 102; the film bonding assembly includes a main cylinder 105 and a swing arm 106 respectively hinged to the wall panel 101, and also includes a receiving pressure roller 107 and a cutter 108 spaced apart on the swing arm 106, the power end of the main cylinder 105 being connected to the swing arm 101. The main cylinder 105 and the swing arm 106 are hinged together, and all rotation axes are parallel to the central axis 102. The receiving roller 107 is parallel to the unwinding shaft 104 and can be driven by the swing arm 106 to approach or move away from one of the unwinding shafts 104. A gap is formed between the receiving roller 107 and the unwinding shaft 104 for the target roll material 201 to pass through. The cutter 108 and the receiving roller 107 are arranged sequentially and spaced apart along the feeding direction of the target roll material 201, and the cutter 108 can be driven by the swing arm 106 to enter or exit the feeding path of the target roll material 201. For ease of explanation, this embodiment uses two unwinding shafts 104 as an example.
[0041] According to the structure provided in this embodiment, in the automatic film splicing and unwinding unit provided in this embodiment, at least two unwinding shafts 104 connected to the bracket 103 can be used to unwind the target roll 201 and store the spare roll 202, respectively. When the central shaft 102 rotates on the wall panel 101, it can drive the bracket 103 connected to the central shaft 102 to rotate, so that the at least two unwinding shafts 104 connected to the bracket 103 and evenly distributed around the central shaft 102 can exchange positions. Since the receiving pressure roller 107 parallel to the unwinding shaft 104 in the film splicing assembly can form an interval between it and the unwinding shaft 104 storing the spare roll 202 for the target roll 201 to pass through, and since the cutter 108 and the receiving pressure roller 107 are arranged sequentially and spaced apart along the feeding direction of the target roll 201, when the main cylinder 105 drives the receiving pressure roller 107 through the swing arm 106, When the unwinding shaft 104 is approached, the target roll 201 being conveyed can be pressed onto the spare roll 202 of the unwinding shaft 104 in the standby position. The cutter 108 connected to the swing arm 106 can also move with the swing arm 106 and cut the target roll 201 being conveyed at a certain distance from the spare roll 202. In this way, when the end surface of the spare roll 202 is pre-attached or coated with adhesive material, the target roll 201 can automatically form a connection with the spare roll 202 and continue to unwind. The unwinding shaft 104 where the currently cut target roll 201 is located can be removed and a new roll can be loaded. Then, the indexing motor 127 starts and indexes the unwinding shaft 104 loaded with the new roll to the standby position to become the next spare roll. Simultaneously, the currently unwinding unwinding shaft 104 rotates to the normal unwinding position (see key reference). Figure 6As shown in the figure, this cycle is repeated, thus the automatic film splicing and unwinding unit provided in this embodiment can unwind continuously and more automatically, which is far superior to the prior art.
[0042] As described above, it is understandable that once the spare roll 202 is connected to the previous target roll 201, the new spare roll 202 can be placed on the unwinding shaft 104 used to unwind the previous target roll 201. Since the position of the splicing assembly is relatively fixed, the central shaft 102 can be rotated to exchange the positions of the two unwinding shafts 104, thereby allowing the unwinding shaft 104 carrying the new spare roll 202 to be moved closer to the splicing assembly, thus facilitating the next splicing operation.
[0043] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 6 The film-coating assembly includes a receiving shaft 109 rotatably mounted on a swing arm 106 and a rotating arm 110 connected to the receiving shaft 109. It also includes a receiving cylinder 111 hinged to the swing arm 106 and a first pull arm 112 hinged to the power end of the receiving cylinder 111. The receiving shaft 109 is parallel to the receiving pressure roller 107 and is connected to the receiving pressure roller 107 through the rotating arm 110. The rotation shafts of the receiving cylinder 111 and the first pull arm 112 are both parallel to the receiving shaft 109. One end of the first pull arm 112 away from the receiving cylinder 111 is connected to the receiving shaft 109 so that the receiving pressure roller 107 can be driven to rotate by the receiving cylinder 111. According to the structure provided in this embodiment, when the receiving cylinder 111 extends or retracts, it can drive the receiving shaft 109 to rotate through the first pull arm 112. In this way, the rotating arm 110 connected to the receiving shaft 109 and the receiving pressure roller 107 connected to the rotating arm 110 can be rotated under the drive of the receiving shaft 109. Thus, the receiving pressure roller 107 can cooperate with the spare roll 202 on the unwinding shaft 104 to form a more stable pressure on the target roll 201 and complete a reliable film splicing action. After the film splicing is completed, the receiving cylinder 111 retracts and drives the receiving pressure roller 107 away from the spare roll 202. Thus, the automatic film splicing and unwinding unit provided in this embodiment can form a more automated continuous unwinding effect.
[0044] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 6The film-coating assembly includes a cutting shaft 113 rotatably mounted on a swing arm 106 and a blade holder 114 connected to the cutting shaft 113. It also includes a cutting cylinder 115 hinged to the swing arm 106 and a second pull arm 116 hinged to the power end of the cutting cylinder 115. The cutting shaft 113 is parallel to the unwinding shaft 104 and connected to the cutter 108 through the blade holder 114. The rotation shafts of the cutting cylinder 115 and the second pull arm 116 are both parallel to the cutting shaft 113. One end of the second pull arm 116 away from the cutting cylinder 115 is connected to the cutting shaft 113 so that the cutter 108 can be driven to rotate by the cutting cylinder 115. According to the structure provided in this embodiment, when the cutting cylinder 115 extends or retracts, the receiving shaft 109 can be rotated by the second pull arm 116. In this way, the knife holder 114 connected to the cutting shaft 113 can drive the cutter 108 connected to the knife holder 114 to rotate so that the cutter 108 cuts towards the target roll material 201. Thus, the cutter 108 can cut the target roll material 201 more conveniently and quickly. After the cutting action is completed, the cutting cylinder 115 drives the cutter 108 to rotate back to reset. Thus, the automatic film splicing and unwinding unit provided in this embodiment can form a more automated continuous unwinding effect.
[0045] As described above, when cutting and splicing are required, the main cylinder 105 drives the swing arm 106 to rotate at a set angle, thereby driving the cutter 108 and the receiving roller 107 to approach the spare roll 202. Then, the receiving roller 107 and the cutter 108 complete the cutting and splicing actions under the drive of the cutting cylinder 115 and the receiving cylinder 111, respectively. After the receiving roller 107 and the cutter 108 are reset, the main cylinder 105 drives the swing arm 106 to rotate and reset, thereby driving the cutter 108 and the receiving roller 107 away from the path trajectory area of the spare roll 202 when the two unwinding shafts 104 exchange positions, so that the two unwinding shafts 104 can smoothly exchange positions.
[0046] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 6 The film splicing assembly also includes guide rollers 117 connected to the support 103. Several guide rollers 117 are arranged corresponding to the number of unwinding shafts 104 and are evenly and alternately distributed around the central axis 102 and the unwinding shaft 104. The guide rollers 117 are also parallel to the unwinding shaft 104 and are used to feed the target roll material 201 so that the target roll material 201 passes through the gap between the unwinding shaft 104 and the receiving pressure roller 107. According to the structure provided in this embodiment, the guide rollers 117 connected to the support 103 can feed the target roll material 201 so that the target roll material 201 passes through the central area between the unwinding shaft 104 and the receiving pressure roller 107. This effectively avoids interference between the unwinding shaft 104 and the receiving pressure roller 107 on the unwinding of the target roll material 201, thereby further improving the automated continuous unwinding effect of the automatic film splicing and unwinding unit in this embodiment.
[0047] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 6 The automatic film splicing and unwinding unit also includes an unwinding motor 118, a driving gear 119, and a driven gear 120. Several unwinding motors 118 are provided corresponding to the number of unwinding shafts 104. The driving gear 119 is connected to the power end of the unwinding motor 118, and the driven gear 120 is coaxially connected to the unwinding shaft 104 and drives the driving gear 119. According to the structure provided in this embodiment, the unwinding motors 118 provided corresponding to the number of unwinding shafts 104 can form a transmission connection through the transmission cooperation of the driving gear 119 and the driven gear 120. Thus, each unwinding shaft 104 can be controlled and actively unwound by a separate unwinding motor 118. This allows each unwinding shaft 104 to be independently controlled to rotate, thereby further improving the automated continuous unwinding effect of the automatic film splicing and unwinding unit in this embodiment. Preferably, the unwinding motor 118 is a servo motor.
[0048] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 6 The unwinding motor 118 is fixedly mounted on the wall panel 101. The automatic film unwinding unit also includes a number of sleeves 121 and a number of sets of bridge gears 122 corresponding to the number of unwinding motors 118. The sleeves 121 are coaxially mounted on the central shaft 102, and all sleeves 121 are stacked radially along the central shaft 102. Adjacent sleeves 121 are rotatably connected to each other and to the central shaft 102. All sleeves 121 can rotate independently around the central shaft 102. The two ends of the sleeves 121 are respectively equipped with couplings to the central shaft 102. 2. The front drive gear 123 and the rear drive gear 124 are coaxial. The front drive gear 123 is each driven by a driving gear 119. The rear drive gear 124 is each driven by a set of bridge gears 122 to a driven gear 120. The bridge gears 122 are rotatably mounted on the bracket 103. It is understood that bearings are usually installed between the sleeves 121 and between the sleeves 121 and the central shaft 102 to enable independent rotation between adjacent sleeves 121 and between the sleeves 121 and the central shaft 102.
[0049] According to the structure provided in this embodiment, each sleeve 121, coaxially mounted on the central shaft 102 and capable of independent rotation, can be connected to a set of driving gears 119 and a set of intermediate gears 122 via front drive gears 123 and rear drive gears 124 at its two ends. On one hand, the unwinding motor 118 can drive the corresponding unwinding shaft 104 to rotate via a set of driving gears 119, front drive gears 123, sleeves 121, rear drive gears 124, intermediate gears 122, and driven gears 120. On the other hand, since the bridge gear 122 is mounted on the bracket 103, when the central shaft 102 rotates, the bracket 103 can drive the bridge gear 122 to rotate relative to the central shaft 102. Thus, the bridge gear 122 can revolve relative to the corresponding rear transmission gear 124 to maintain transmission engagement. Therefore, in this embodiment, the unwinding motor 118 fixedly mounted on the wall panel 101 can also maintain a stable transmission connection with the corresponding unwinding shaft 104 when it rotates. This is beneficial to further improve the automated continuous unwinding effect of the automatic film splicing and unwinding unit in this embodiment.
[0050] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 6 The automatic film splicing and unwinding unit also includes an intermediate shaft 125 rotatably mounted on the wall panel 101 and perpendicularly penetrating the wall panel 101. Intermediate gears 126 are coaxially connected to both ends of the intermediate shaft 125. The intermediate shaft 125, through the intermediate gears 126 at both ends, enables the drive gear 119 and the front transmission gear 123 to form a transmission connection. According to the structure provided in this embodiment, the intermediate shaft 125 penetrating the wall panel 101 allows the unwinding motor 118 and the unwinding shaft 104 to be located on opposite sides of the wall panel 101. This significantly avoids mechanical interference between them and also allows for the fixed installation of the unwinding motor 118, further improving the automated continuous unwinding effect and the reliability and stability of the unwinding unit in this embodiment.
[0051] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 6The automatic film splicing and unwinding unit also includes a rotary motor 127 and a worm gear 128 and a worm 129 connected for transmission. The rotary motor 127 is mounted on the wall panel 101, the worm gear 128 is coaxially connected to the central shaft 102, and the worm 129 is connected to the power end of the rotary motor 127. The rotary motor 127 is connected to the central shaft 102 through the worm gear 128 and the worm 129 and is used to drive the central shaft 102 to rotate relative to the wall panel 101. According to the above structure provided in this embodiment, the rotary motor 127 can make the central shaft 102 rotate stably through the transmission structure of the worm gear 128 and the worm 129. On the other hand, since the structure of the worm gear 128 and the worm 129 has the characteristic of self-locking, when the rotary motor 127 stops power output, the central shaft 102 can be stably maintained in a predetermined posture and position. This is also conducive to further improving the automated continuous unwinding effect of the automatic film splicing and unwinding unit in this embodiment.
[0052] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 6 The automatic film splicing and unwinding unit also includes an angle sensor 130 connected to the central shaft 102 and used to detect the angle through which the central shaft 102 has rotated; the angle sensor 130 is communicatively connected to the indexing motor 127. According to the structure provided in this embodiment, the indexing motor 127, communicatively connected to the angle sensor 130, can drive the central shaft 102 according to the detection signal of the angle through which the central shaft 102 has rotated by the angle sensor 130. This allows the central shaft 102 to be more precisely adjusted to the target position, thereby further improving the automated continuous unwinding effect of the automatic film splicing and unwinding unit in this embodiment. It is understood that the communication connection between the angle sensor 130 and the indexing motor 127 in this embodiment can adopt commonly used electrical connections, wireless signal connections, etc., which will not be elaborated upon here.
[0053] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An automatic film splicing and unwinding unit characterized by comprising: It comprises: a wall plate (101); a central shaft (102) rotatably mounted on the wall plate (101); a support (103) connected to the central shaft (102) and capable of rotating with the central shaft (102); a pay-off shaft (104) connected to the support (103) and arranged in parallel and spaced apart from the central shaft (102), the pay-off shaft (104) being uniformly provided with at least two around the central shaft (102); a film receiving assembly comprising a main cylinder (105) and a swing arm (106) hingedly connected to the wall plate (101), further comprising a receiving roller (107) and a cutter (108) connected to the swing arm (106) in a spaced manner, the power end of the main cylinder (105) being hingedly connected to the swing arm (106) and all the rotation axes of the main cylinder (105) and the swing arm (106) being parallel to the central shaft (102), the receiving roller (107) being parallel to the pay-off shaft (104) and capable of being driven by the swing arm (106) to approach or move away from one of the pay-off shafts (104), the receiving roller (107) and the pay-off shaft (104) forming a space for the target coiled material (201) to pass through, the cutter (108) and the receiving roller (107) being arranged in sequence and in a spaced manner along the feeding direction of the target coiled material (201), and the cutter (108) being capable of being driven by the swing arm (106) to intrude into or exit the feeding path of the target coiled material (201).
2. The automatic film receiving and pay-off unit according to claim 1, wherein: the film receiving assembly comprises a receiving shaft (109) rotatably mounted on the swing arm (106) and a rotating arm (110) connected to the receiving shaft (109), further comprising a receiving cylinder (111) hingedly connected to the swing arm (106) and a first pull arm (112) hingedly connected to the power end of the receiving cylinder (111); the receiving shaft (109) is parallel to the receiving roller (107) and connected to the receiving roller (107) through the rotating arm (110), the rotation axes of the receiving cylinder (111) and the first pull arm (112) are parallel to the receiving shaft (109), and one end of the first pull arm (112) away from the receiving cylinder (111) is connected to the receiving shaft (109) so that the receiving roller (107) can be flipped by the receiving cylinder (111).
3. The automatic film receiving and pay-off unit according to claim 1 or 2, wherein: the film receiving assembly comprises a cutting shaft (113) rotatably mounted on the swing arm (106) and a cutter holder (114) connected to the cutting shaft (113), further comprising a cutting cylinder (115) hingedly connected to the swing arm (106) and a second pull arm (116) hingedly connected to the power end of the cutting cylinder (115); The cutting shaft (113) is parallel to the unwinding shaft (104) and connected with the cutter (108) through the cutter holder (114), the rotating shafts of the cutting cylinder (115) and the second pull arm (116) are parallel to the cutting shaft (113), and one end of the second pull arm (116) away from the cutting cylinder (115) is connected to the cutting shaft (113) so that the cutter (108) can be driven to overturn by the cutting cylinder (115).
4. The automatic film receiving and unwinding unit according to claim 3, characterized in that: The film receiving assembly further comprises guide rollers (117) connected to the support (103); The guide rollers (117) are arranged in a number corresponding to the unwinding shafts (104) and are uniformly and alternately distributed around the central shaft (102) and the unwinding shafts (104), and the guide rollers (117) are parallel to the unwinding shafts (104) and are used to support and convey the target coiled material (201) so that the target coiled material (201) passes through the gap between the unwinding shafts (104) and the material receiving compression roller (107).
5. The automatic film receiving and unwinding unit according to claim 1, characterized in that: The automatic film receiving and unwinding unit further comprises unwinding motors (118), driving gears (119), and driven gears (120); The unwinding motors (118) are arranged in a number corresponding to the unwinding shafts (104), the driving gears (119) are connected to the power ends of the unwinding motors (118), and the driven gears (120) are coaxially connected to the unwinding shafts (104) and are in transmission connection with the driving gears (119).
6. The automatic film receiving and unwinding unit according to claim 5, characterized in that: The unwinding motors (118) are fixedly installed on the wallboard (101), and the automatic film receiving and unwinding unit further comprises a plurality of sleeves (121) and a plurality of groups of bridge gears (122) arranged in a number corresponding to the unwinding motors (118); The sleeves (121) are coaxially sleeved on the central shaft (102) and are arranged in a telescopic manner along the radial direction of the central shaft (102), adjacent sleeves (121) and the central shaft (102) are rotationally connected, and all the sleeves (121) can independently rotate around the central shaft (102), both ends of the sleeve (121) are respectively provided with front transmission gears (123) and rear transmission gears (124) coaxial with the central shaft (102), the front transmission gears (123) are respectively in transmission connection with the driving gears (119), the rear transmission gears (124) are respectively in transmission connection with the driven gears (120) through a group of bridge gears (122), and the bridge gears (122) are rotationally installed on the support (103).
7. The automatic film receiving and unwinding unit according to claim 6, characterized in that: The automatic film receiving and unwinding unit further comprises a middle shaft (125) which is rotatably installed on the wall plate (101) and vertically penetrates the wall plate (101), and two middle gears (126) are coaxially connected to two ends of the middle shaft (125) respectively; The middle shaft (125) forms a transmission connection between the driving gear (119) and the front transmission gear (123) through the two middle gears (126) at the two ends respectively. 8.The automatic film receiving and unwinding unit according to claim 1, characterized in that: The automatic film receiving and unwinding unit further comprises a rotating motor (127), a worm gear (128) and a worm shaft (129) which are in transmission connection; The rotating motor (127) is installed on the wall plate (101), the worm gear (128) is coaxially connected to the central shaft (102), the worm shaft (129) is connected to a power end of the rotating motor (127), and the rotating motor (127) is in transmission connection with the central shaft (102) through the worm gear (128) and the worm shaft (129) and is used for driving the central shaft (102) to rotate relative to the wall plate (101). 9.The automatic film receiving and unwinding unit according to claim 8, characterized in that: The automatic film receiving and unwinding unit further comprises an angle sensor (130) which is connected to the central shaft (102) and is used for detecting an angle of rotation of the central shaft (102); The angle sensor (130) is in communication connection with the rotating motor (127).