Film roll taking and placing assembly and film roll feeding equipment
The design, which uses a push rod mechanism to directly lift the membrane roll and a clamping mechanism to hold the membrane head, solves the problem of high control difficulty of the membrane roll picking and placing components in the existing technology. It achieves stable picking and placing of membrane rolls and simplifies the equipment, meeting the needs of unmanned production.
Patent Information
- Application Number
- CN202522059565.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2035-09-25
AI Technical Summary
Existing membrane roll loading and unloading components and feeding equipment are difficult to control and operate, especially due to the problem of membrane roll falling off or inner cylinder breaking caused by relying on friction, and are sensitive to the differences in friction coefficient and weight of different membrane roll inner cylinders.
Employing a push rod mechanism and clamping mechanism that do not require radial expansion, the push rod mechanism directly lifts the membrane roll, and combined with a robotic arm, it achieves fully automatic loading and unloading. The extension and retraction of the piston rod are precisely controlled by a telescopic cylinder and a motor, and the clamping mechanism holds the membrane head through a sliding clamp body, simplifying the structure and reducing the difficulty of control.
It achieves stable loading and unloading of membrane rolls, avoids problems such as detachment or tearing caused by improper pressure control, reduces the complexity of equipment operation, and meets the requirements of human-machine isolation.
Smart Images
Figure CN223521976U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model mainly relates to the packaging machinery technical field especially film roll take and put subassembly and film roll feeding equipment. BACKGROUND
[0002] In the civilian explosive packaging industry, with the deepening of automation, intelligentization and unmanned process, the performance, operation stability, intelligentization and unmanned requirement of production equipment of civilian explosive enterprises are also higher and higher. In the past charging process, the addition of the film roll used by the emulsion charging machine is completed by manual work. In order to realize "man-machine isolation" and "machine instead of man", eliminate some unstable factors caused by man and improve the safety of charging process, the mechanical film roll take and put subassembly and film roll feeding equipment are proposed.
[0003] In the actual application process, the technical personnel finds that the existing film roll take and put subassembly and film roll feeding equipment still has room for improvement: because the new film roll is in a horizontal placement state, when the film roll is lifted, the take and put subassembly needs to be inserted into the film roll inner cylinder along the vertical direction first, then expanded outward to form fixation with the film roll inner cylinder, and retracted after being transported to the position to be separated from the film roll inner cylinder, which means that the take and put subassembly must be set as a radial movable structure, which undoubtedly increases the complexity of the structure and improves the control difficulty of the structure. In the process of lifting the film roll, the clamp relies on the friction force between the take and put subassembly and the film roll inner cylinder to balance the self weight of the film roll. In the process, the pressure control between the take and put subassembly and the film roll inner cylinder is crucial - when the pressure between them is too small, the friction force is not enough to balance the self weight of the film roll, which will cause the film roll to fall off; and when the pressure between them is too large, the take and put subassembly may break the film roll inner cylinder, which will cause the film wound on the film roll inner cylinder to be deformed. And because the friction coefficient of the inner wall of different film roll inner cylinders and the self weight of the film roll are difficult to completely unify, higher technical requirements are put forward for the control of the take and put subassembly, which ultimately leads to the difficulty of realizing the scheme.
[0004] Therefore, it is necessary to improve the existing film roll clamp changing device and provide a film roll take and put subassembly and film roll feeding equipment which does not need to use friction force to realize fixation, so as to reduce the control difficulty. UTILITY MODEL CONTENTS
[0005] In order to solve the technical problem that the control requirement of the take and put subassembly is too high in the prior art, the utility model provides a film roll take and put subassembly and film roll feeding equipment which does not need to use friction force to realize fixation.
[0006] The following technical scheme is adopted:
[0007] The film taking and placing assembly comprises a base plate, a mounting seat, a push rod mechanism and a clamp mechanism. The mounting seat is arranged on the back of the base plate and is used for connecting an external mechanical arm. The push rod mechanism is fixed with the base plate and is used for lifting an external film roll. One end of the push rod mechanism can protrude from the front of the base plate in an extension mode. The clamp mechanism is fixed with the base plate and is used for clamping the head of the external film. One end of the clamp mechanism protrudes from the front of the base plate and forms a gap with the push rod mechanism in the extension mode to avoid the external film roll. The film taking and placing assembly can directly "lift" the external film roll through the extension and retraction of the push rod mechanism. Therefore, the push rod mechanism does not need to move radially, which completely changes the design of the prior art that relies on radial expansion to generate friction to fix the film roll, thereby greatly simplifying the structure. At the same time, the taking and placing of the external film roll is realized through the "lifting" action, and the friction between the taking and placing assembly and the inner cylinder of the film roll is not relied on. Therefore, the problem of the external film roll falling off or the inner cylinder being damaged due to improper pressure control is fundamentally avoided. In addition, the influence of the friction coefficient and the weight difference of different inner cylinders of the film roll on the control is not considered, thereby greatly reducing the operation difficulty.
[0008] The push rod mechanism comprises a telescopic cylinder. The cylinder barrel of the telescopic cylinder is fixed on the back of the base plate, and the piston rod of the telescopic cylinder penetrates the base plate. Fixing the cylinder barrel of the telescopic cylinder on the base plate can provide stable support for the cylinder barrel by the base plate, thereby ensuring the stability and reliability of the push rod action. In addition, since the front of the base plate will face the external film roll, arranging the cylinder barrel on the back of the base plate can simplify the structure of the front of the base plate and avoid friction and collision between the external film roll and the cylinder barrel during the transfer process. At the same time, a through hole is formed in the base plate to face the piston rod of the telescopic cylinder. After the piston rod extends out of the cylinder barrel, it can penetrate the base plate and protrude outward along the front of the base plate, thereby lifting the external film roll.
[0009] The push rod mechanism further comprises a motor for driving the piston rod to move in extension and retraction. The motor is fixed on the back of the base plate and is connected with the telescopic cylinder. The motor driving mode can realize accurate control of the extension and retraction amount of the piston rod. The extension length can be adjusted according to the actual needs of different specifications of the film roll, thereby ensuring that the push rod mechanism can stably lift the film roll. In addition, since the front of the base plate will face the external film roll, arranging the motor on the back of the base plate can simplify the structure of the front of the base plate and avoid friction and collision between the external film roll and the motor during the transfer process.
[0010] The clamp mechanism comprises a pair of clamp bodies slidingly arranged on the front of the base plate, and a driver connected with the clamp bodies and used for driving the clamp bodies to slide. The driver is fixed on the back of the base plate. The head of the external film refers to the starting section of the film material in the external film roll. The clamp bodies can controllably clamp the head of the external film in a sliding mode, thereby preparing for the subsequent feeding of the film head into a film receiving machine. In addition, since the front of the base plate will face the external film roll, arranging the driver on the back of the base plate can simplify the structure of the front of the base plate and avoid friction and collision between the external film roll and the driver during the transfer process.
[0011] The film roll loading device comprises the film roll taking and placing assembly, the mechanical arm and the storage rack. The movable end of the mechanical arm is connected with the film roll taking and placing assembly. The storage rack is located at the side of the mechanical arm and temporarily fixes the external film roll placed vertically. The storage rack comprises a rack body and a conveying mechanism horizontally arranged on the rack body. A plurality of external film rolls placed vertically are sequentially fixed on the conveying mechanism, and the conveying direction of the conveying mechanism is opposite to the mechanical arm. The combination of the mechanical arm and the film roll taking and placing assembly realizes the full-automatic taking and placing process and avoids manual intervention, thereby meeting the requirement of "man-machine isolation". In order to cooperate with the taking and placing assembly to take and place the film roll in the form of "picking", the storage rack is arranged in the movable range of the mechanical arm. The storage rack can temporarily fix the film roll placed vertically so that the push rod mechanism can directly pick up the film roll. The film roll taking and placing assembly can directly "pick up" the external film roll through the push rod mechanism in the telescopic action, so that the push rod mechanism does not need to move radially. The design of the prior art that relies on the radial expansion to generate friction force to fix the film roll is completely changed, thereby greatly simplifying the structure. At the same time, the taking and placing of the external film roll is realized by the action of "picking", without relying on the friction force between the taking and placing assembly and the inner cylinder of the film roll. The problem of the external film roll falling off or the inner cylinder being broken due to improper pressure control is fundamentally avoided. The influence of the friction coefficient and the weight difference of different film roll inner cylinders on the control is not considered, thereby greatly reducing the control difficulty.
[0012] The storage rack further comprises a tray placed on the upper surface of the conveying mechanism. One side of the tray forms a support arm for placing the film head. A spring piece for clamping the film head is mounted on the support arm. The film head can be placed on the support arm, thereby avoiding the problem that the film head is difficult to be fixed by the clamp mechanism due to the adhesion with the film roll. At the same time, by arranging the spring piece, the film head can be pre-clamped, thereby ensuring that the film head is always separated from the film roll during the conveying process. The elastic clamping mechanism of the spring piece is simple and reliable, without complex control, thereby reducing the complexity of the equipment. This design enables the clamp mechanism to more accurately clamp the film head, thereby reducing the problem of taking and placing failure caused by the position deviation of the film head.
[0013] An arc-shaped groove adapted to the outer diameter of the external film roll is formed on the upper surface of the tray. The arc-shaped groove is adapted to the outer diameter of the film roll, thereby limiting the film roll in the circumferential direction and preventing the film roll from rolling or shifting on the tray. This provides a stable basis for the push rod mechanism to accurately pick up the film roll and the clamp mechanism to accurately clamp the film head, thereby avoiding the taking and placing failure caused by the position deviation of the film roll and further reducing the control requirement of the equipment.
[0014] The frame body is provided with a baffle for placing the outer film head along the length direction of the conveying mechanism, and the baffle protrudes from the upper surface of the conveying mechanism. The arrangement of the baffle can support and limit the film head, the film head can be placed on the baffle, and the problem that the film head is difficult to be fixed by the clamp mechanism due to being attached to the film roll can be avoided. This design is simple, and at the same time, the clamp mechanism can more accurately clamp the film head, and the problem of taking and placing failure caused by the position deviation of the film head is reduced.
[0015] The conveying mechanism comprises a chain belt for carrying the outer film roll, and the surface of the chain belt is provided with a stop block matched with the outer diameter of the outer film roll and used for preventing the outer film roll from rolling. The stop block is matched with the outer diameter of the film roll, can limit the film roll in the circumferential direction, prevents the film roll from rolling or shifting on the chain belt, provides a stable basis for the push rod mechanism to accurately pick up the film roll and the clamp mechanism to accurately clamp the film head, avoids the taking and placing failure caused by the position deviation of the film roll, and further reduces the control requirements of the equipment. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a structural schematic view of the film roll feeding equipment in embodiment 1;
[0017] Figure 2 is a connection schematic view of the film roll taking and placing assembly and the mechanical arm in embodiment 1;
[0018] Figure 3 is a structural schematic view of the film roll taking and placing assembly in embodiment 1 (the piston rod is in a retracted state);
[0019] Figure 4 is a structural schematic view of the film roll taking and placing assembly in embodiment 1 (the piston rod is in an extended state);
[0020] Figure 5 is a structural schematic view of the storage rack in embodiment 1;
[0021] Figure 6 is a structural schematic view of the tray in embodiment 1;
[0022] Figure 7 is a structural schematic view of the storage rack in embodiment 2.
[0023] The various reference numerals in the drawings represent:
[0024] 01, outer film roll; 011, outer film head;
[0025] 1, film roll taking and placing assembly; 11, base plate; 12, mounting seat; 13, push rod mechanism; 131, telescopic cylinder; 1311, cylinder barrel; 1312, piston rod; 132, motor; 14, clamp mechanism; 141, clamp body; 142, driver;
[0026] 2, mechanical arm;
[0027] 3. Storage rack; 31. Rack body; 32. Conveying mechanism; 321. Chain belt; 322. Stop block; 33. Pallet; 331. Support arm; 332. Spring; 333. Arc groove; 34. Baffle;
[0028] 4. Guardrails;
[0029] 5. Film splicing machine. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0031] Example 1
[0032] like Figures 1 to 6 As shown, in this embodiment, the film roll feeding device includes a film roll loading and unloading assembly 1, a robotic arm 2, and a storage rack 3.
[0033] In this embodiment, the film roll pick-and-place assembly 1 includes a substrate 11, a mounting base 12, a pusher mechanism 13, and a clamping mechanism 14. The substrate 11 is a rectangular metal plate, and the mounting base 12 is columnar and disposed on the back of the substrate 11, which can be detachably connected to an external robotic arm 2. The pusher mechanism 13 is fixed to the substrate 11 and is spaced apart from the mounting base 12. One end of the pusher mechanism 13 can extend and retract to protrude from the front of the substrate 11, thereby picking up the external film roll 01. The clamping mechanism 14 is also fixed to the substrate 11 and is spaced apart from the mounting base 12 on the opposite side of the pusher mechanism 13. One end of the clamping mechanism 14 protrudes from the front of the substrate 11 and is used to clamp the external film head 011. In the extended state, the pusher mechanism 13 and the clamping mechanism 14 form a gap on the front of the substrate 11, which can avoid the external film roll 01.
[0034] The push rod mechanism 13 includes a telescopic cylinder 131, the cylinder barrel 1311 of which is fixed to the back side of the substrate 11, and its piston rod 1312 protruding from the front side of the substrate 11 after passing through it. The piston rod 1312 protruding from the front side of the substrate 11 can penetrate into the inner cylinder of the film roll, thereby lifting the outer film roll 01. At the same time, the push rod mechanism 13 also includes a motor 132 for driving the piston rod 1312 to move telescopically, which is fixed to the back side of the substrate 11 and connected to the telescopic cylinder 131.
[0035] The clamping mechanism 14 includes a pair of clamps 141 slidably mounted on the front side of the substrate 11, and a driver 142 connected to the clamps 141 for driving the clamps 141 to slide. The driver 142 is fixed to the back side of the substrate 11.
[0036] In this embodiment, the movable end of the robotic arm 2 is connected to the film winding and unwinding assembly 1.
[0037] In the embodiment, the storage rack 3 is located at the side of the mechanical arm 2 and temporarily fixed with the vertically placed outer film roll 01. Specifically, the storage rack 3 comprises a rack body 31 and a conveying mechanism 32 horizontally arranged on the rack body 31; a plurality of vertically placed outer film rolls 01 are sequentially fixed on the conveying mechanism 32, and the conveying direction of the conveying mechanism 32 is opposite to the mechanical arm 2. The storage rack 3 further comprises a tray 33 placed on the surface of the conveying mechanism 32, one side of the tray 33 forms a supporting arm 331 for placing the outer film head 011, and the supporting arm 331 is provided with a spring 332 for clamping the outer film head 011. The upper surface of the tray 33 is formed with an arc-shaped groove 333 matched with the outer diameter of the outer film roll 01.
[0038] In addition, in the embodiment, a protective fence 4 is arranged at the intersection position of the mechanical arm 2 and the storage rack 3 to avoid external interference. In addition, the film receiving machine 5 is also arranged at the side of the mechanical arm 2, and the orientation thereof is substantially perpendicular to the conveying direction of the conveying mechanism 32.
[0039] The technical scheme disclosed by the utility model has the following operation principles:
[0040] The outer film roll 01 of the cylinder is placed on the tray 33, the curved side wall of the outer film roll 01 is matched with the arc-shaped groove 333 of the tray 33, the outer film head 011 of the outer film roll 01 is loosened from the film roll and placed on the supporting arm 331 at one side of the tray 33 and clamped by the spring 332 matched with the supporting arm 331.
[0041] A plurality of trays 33 loaded with outer film rolls 01 are sequentially arranged on the conveying mechanism 32, and through the conveying of the conveying mechanism 32, the trays 33 loaded with outer film rolls 01 can sequentially come to the taking station of the film roll taking and placing assembly 1.
[0042] When the tray 33 loaded with the outer film roll 01 reaches the taking station of the film roll taking and placing assembly 1, the conveying mechanism 32 stops running, and the tray 33 loaded with the outer film roll 01 is stationary at the taking station of the film roll taking and placing assembly 1. At this time, the mechanical arm 2 runs to the position opposite to the outer film roll 01 placed at the taking station. Through the spatial position adjustment of the mechanical arm 2, the piston rod 1312 of the telescopic cylinder 131 is opposite to the hollow cylinder hole in the middle of the outer film roll 01, and the jaw body 141 is opposite to the outer film head 011. Then, the motor 132 is started to drive the piston rod 1312 to extend out of the cylinder barrel 1311 and into the hollow cylinder hole in the middle of the outer film roll 01; at the same time, the driver 142 drives the jaw body 141 to first open and then clamp to form clamping on the outer film head 011. Then, under the driving of the mechanical arm 2, the film roll taking and placing assembly 1 moves upward, and the piston rod 1312 extending into the hollow cylinder hole in the middle of the outer film roll 01 "lifts up" the outer film roll 01 to separate it from the tray 33. Then, the conveying mechanism 32 is started again to convey the next outer film roll 01 to the taking station.
[0043] Next, the mechanical arm 2 is pivoted so that the film taking and placing assembly 1 carries the outer film roll 01 to the feeding station. At this time, the piston rod 1312 of the telescopic cylinder 131 is opposite the mounting roller in the film receiver 5. Under the action of the mechanical arm 2, the film taking and placing assembly 1 carries the outer film roll 01 to move slowly in the direction. At the same time, the motor 132 is reversed to drive the piston rod 1312 to retract slowly into the cylinder barrel 1311. During the process, the piston rod 1312 is gradually separated from the hollow cylinder hole in the middle of the outer film roll 01, and the mounting roller in the film receiver 5 is gradually inserted. When the piston rod 1312 is completely retracted into the cylinder barrel 1311, the mounting roller in the film receiver 5 has also been completely inserted into the hollow cylinder in the middle of the outer film roll 01, so that the film taking and placing assembly 1 and the film receiver 5 realize the taking and placing of the outer film roll 01.
[0044] Next, the mechanical arm 2 drives the film taking and placing assembly 1 to carry the outer film head 011 to the film joining mechanism of the film receiver 5. Then the driver 142 drives the clamp body 141 to open, and the outer film head 011 falls from the clamp body 141 into the film joining mechanism of the film receiver 5 under the action of the suction force of the film receiver 5.
[0045] Finally, the mechanical arm 2 drives the film taking and placing assembly 1 to return to the original position, waiting for taking and feeding the next outer film roll 01.
[0046] Embodiment 2
[0047] As shown in Figure 7 , the embodiment is basically the same as Embodiment 1, and the difference lies in the structure of the storage rack 3:
[0048] In this embodiment, the storage rack 3 is located laterally to the mechanical arm 2 and temporarily fixes the outer film roll 01 vertically placed. Specifically, the storage rack 3 includes a rack body 31 and a conveying mechanism 32 horizontally arranged on the rack body 31. A plurality of outer film rolls 01 are sequentially fixed on the conveying mechanism 32 and vertically placed, and the conveying direction of the conveying mechanism 32 is opposite to the mechanical arm 2. More specifically, the rack body 31 is formed with a baffle 34 for placing the outer film head 011 along the length direction of the conveying mechanism 32, and the baffle 34 protrudes from the upper surface of the conveying mechanism 32. The conveying mechanism 32 includes a chain belt 321 for carrying the outer film roll 01, and the surface of the chain belt 321 is provided with a stop block 322 adapted to the outer diameter of the outer film roll 01 for preventing the outer film roll 01 from rolling.
[0049] Although the utility model has disclosed as above with preferable embodiments, however, not to limit the utility model. Any skilled person in the art, without departing from the utility model technical scheme range, can utilize the above disclosed technical content to make many possible changes and modifications to the utility model technical scheme, or modify as equivalent variation equivalent embodiment. Therefore, any simple modification, equivalent variation and modification made to the above embodiments according to the technical essence of the utility model, which does not depart from the content of the utility model technical scheme, should fall within the scope of the utility model technical scheme protection.
Claims
1. A film unwinding and dispensing assembly (1), characterized in that, It comprises: a substrate (11); a mounting base (12) arranged on the back of the substrate (11) and used for connecting an external mechanical arm (2); a push rod mechanism (13) fixed to the substrate (11) and used for lifting an external film roll (01), one end of which can protrude from the front of the substrate (11) through extension and retraction; the push rod mechanism (13) comprises an extension and retraction cylinder (131), a cylinder barrel (1311) of the extension and retraction cylinder (131) is fixed to the back of the substrate (11), and a piston rod (1312) of the extension and retraction cylinder (131) penetrates the substrate (11); a clamp mechanism (14) fixed to the substrate (11) and used for clamping an external film head (011), one end of which protrudes from the front of the substrate (11) and forms a gap for avoiding the external film roll (01) in the extended state of the push rod mechanism (13); the clamp mechanism (14) comprises a pair of clamp bodies (141) slidingly arranged on the front of the substrate (11), and a driver (142) connected to the clamp bodies (141) and used for driving the clamp bodies (141) to slide, the driver (142) being fixed to the back of the substrate (11).
2. The film unwinding and winding assembly (1) according to claim 1, characterized in that: The push rod mechanism (13) further comprises a motor (132) for driving the piston rod (1312) to move in extension and retraction, the motor (132) being fixed to the back of the substrate (11) and connected to the extension and retraction cylinder (131).
3. A film roll loading apparatus characterized by, It comprises: the film roll taking and placing assembly (1) according to claim 1 or 2; a mechanical arm (2) having an active end connected with the film roll taking and placing assembly (1); a storage rack (3) located laterally to the mechanical arm (2) and temporarily fixed with an external film roll (01) arranged vertically.
4. The film roll loading apparatus according to claim 3, characterized by: The storage rack (3) comprises a rack body (31) and a conveying mechanism (32) horizontally arranged on the rack body (31); a plurality of external film rolls (01) arranged vertically are sequentially fixed on the conveying mechanism (32), and a conveying direction of the conveying mechanism (32) is directly opposite to the mechanical arm (2).
5. The film roll loading apparatus according to claim 4, characterized by: The storage rack (3) further comprises a tray (33) arranged on a surface of the conveying mechanism (32); one side of the tray (33) forms a support arm (331) for placing an external film head (011); and the support arm (331) is provided with a spring sheet (332) for clamping the external film head (011).
6. The film roll loading apparatus according to claim 5, characterized by: An arc-shaped groove (333) matching an outer diameter of the external film roll (01) is formed on the surface of the tray (33).
7. The film roll loading apparatus according to claim 4, characterized by: A baffle (34) for placing the external film head (011) is formed on the rack body (31) along a length direction of the conveying mechanism (32), and the baffle (34) protrudes from an upper surface of the conveying mechanism (32).
8. The film roll loading apparatus according to claim 7, characterized by: The conveying mechanism (32) comprises a chain belt (321) for carrying the external film roll (01), and a stop block (322) matching the outer diameter of the external film roll (01) is arranged on a surface of the chain belt (321) to prevent the external film roll (01) from rolling.