A multi-station switching medicine packaging composite film unwinding frame

Abstract

The utility model discloses a kind of multi-station switching's medicine packaging composite film unwinding frame, it is related to medicine packaging technical field, including support seat, both sides of the support seat are hinged with rotating lever, one side fixed mounting of the rotating lever has connecting plate, the top surface bolt connection of the connecting plate has electric push rod, the output end of the electric push rod is connected with push plate from the outside of connecting plate and is penetrated, it is connected between the push plate and connecting plate by four slide bars one, the bottom surface edge of the push plate is fixedly connected with two cylinders, the end of two cylinders is welded with circular ring, the middle part of two circular rings is connected by pivot;Through each mechanism turntable subassembly, auxiliary stick, push plate and cutting component, tension adjusting component are all used bolt or peg connection, it is convenient to disassemble, overhaul and replace, while each spare part standardization, height interchanges, reduce maintenance cost and spare rate.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical packaging technology, and in particular to a pharmaceutical packaging composite film unwinding rack with multi-station switching. Background Technology

[0002] As a crucial step in the packaging production line, the unwinding and cutting of pharmaceutical packaging composite films directly impacts overall production efficiency and product quality. Currently, common composite film unwinding devices on the market suffer from the following technical bottlenecks: Most are equipped with mechanical scissors or simple blade structures, requiring a pause in unwinding before cutting can begin. After cutting, it's impossible to rewind new film material without stopping, reducing production efficiency. Existing equipment often uses mechanical cams or limit blocks with guide rail positioning, lacking closed-loop angle feedback and self-locking functions, resulting in angle drift and positioning errors. The cutting edge is difficult to maintain consistency, affecting film cutting quality. Switching between composite film unwinding often requires machine stoppage, impacting work progress and efficiency. Most machines require manual rewinding after one composite film is wound, leading to complex structures, low component standardization, and time-consuming and labor-intensive disassembly and maintenance. Poor adaptability to composite films of different diameters and materials necessitates replacing matching parts, increasing procurement and spare parts management costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pharmaceutical packaging composite film unwinding rack with multi-station switching, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pharmaceutical packaging composite film unwinding rack with multi-station switching, comprising a support base, with rotating rods hinged to both sides of the support base, a connecting plate fixedly installed on one side of each rotating rod, an electric push rod bolted to the top surface of the connecting plate, the output end of the electric push rod penetrating through the outside of the connecting plate to a push plate, the push plate and the connecting plate being connected by four sliding rods, and two cylinders fixedly connected to the bottom edge of the push plate, with a ring welded to the end of each cylinder. The middle part of the ring is connected by a pivot, and a pressure roller is sleeved on the outside of the pivot. Nuts are threaded to the ends of the two pivots on the outside of the ring. Two blocks are fixedly connected to the bottom edge of the push plate. An electric telescopic rod is bolted to one side of one of the blocks. A second sliding rod is fixedly connected between the two blocks. A blade is slidably connected to the outside of the second sliding rod. The blade edge of the blade is close to the pressure roller. The output end of the electric telescopic rod is connected to the blade through the outside of one of the blocks. The bottom edge of the blade edge is close to the rolling roller.

[0005] As a further technical solution of this utility model, a base is bolted to the bottom surface of the support seat, and two support blocks are fixedly installed on the top surface of the base. A rotating hole is opened on one side of each of the two support blocks, and a rotating shaft is hinged to one side of each of the two support blocks. A rotary motor is bolted to one side of one of the support blocks. The output end of the rotary motor passes through the outside of the support block and is connected to one of the rotating shafts. A reel is bolted to one end of each of the two rotating shafts. Two turntables are bolted to one side of each of the two reels. A circular groove is opened on one side of each of the two turntables, and a winding roller rotating shaft is fitted on the inner side wall of the circular groove.

[0006] As a further technical solution of this utility model, two rotating shafts are hinged to one side of each of the two reels, and a block is bolted to one side of each of the four rotating shafts. Two rotating holes are opened on one side of each block, and an auxiliary rod rotating shaft is sleeved on the inner side of each rotating hole. An auxiliary rod one and an auxiliary rod two are sleeved on the outer side of each auxiliary rod rotating shaft.

[0007] As a further technical solution of this utility model, a square plate is bolted to one side of the support base, and a telescopic motor is bolted to one side of the square plate. The output end of the telescopic motor passes through the outside of the square plate and is connected to a slider. A long plate is fixedly installed on the top surface of the slider. Two auxiliary pillars are fixedly connected to the top surface of the long plate. Holes are opened on one side of each of the two auxiliary pillars, and fixing rods are fixedly connected to the inner sidewalls of each of the two holes.

[0008] As a further technical solution of this utility model, both ends of the two fixing rods are welded with collars, and an elliptical block one is hinged to the outside of the collars through a connecting rod. An elliptical block two is hinged to the outside of the elliptical block one through a connecting rod. Holes are opened on one side of each of the four elliptical blocks two. A rotating shaft four is fitted into the hole of the elliptical block two. An abutting rod is fitted to the outside of the rotating shaft four.

[0009] As a further technical solution of this utility model, an L-shaped block is fixedly connected to one side of the support base, and a second rotary motor is bolted to one side of the L-shaped block. The output end of the second rotary motor is connected to a rotating rod through the outside of the L-shaped block.

[0010] As a further technical solution of this utility model, nuts are bolted to the outer ends of the tops of the four sliding rods, and limit rods are bolted to the outer ends of the sliding rods.

[0011] As a further technical solution of this utility model, the outer side of the rotary motor is electrically connected to an incremental or absolute encoder. The incremental or absolute encoder is used to provide a continuous holding torque by the driver after the rotating rod reaches the target angle, so as to prevent angle drift.

[0012] This utility model provides a pharmaceutical packaging composite film unwinding rack with multi-station switching, which has the following advantages compared with the prior art:

[0013] 1. This design is a pharmaceutical packaging composite film unwinding rack with multi-station switching. The turntable components, auxiliary rollers, push plates, cutting components, and tension adjustment components of each mechanism are all connected by bolts or pins, which facilitates disassembly, maintenance, and replacement. At the same time, the standardization and high interchangeability of each component reduces maintenance costs and spare parts rate.

[0014] 2. This design is a pharmaceutical packaging composite film unwinding rack with multi-station switching. Through the coordinated work of electric push rod, electric telescopic rod and cutter body, the composite film is automatically cut under pre-compression and tension balance. After cutting, the tail end of the film material continues to wind under the bidirectional action of pressure roller and contact roller, without the need to stop the machine to replace it, so as to realize the continuous operation of the production line without stopping the machine.

[0015] 3. This design features a multi-station switching unwinding rack for pharmaceutical packaging composite film. Through a rotary motor, a spline-connected rotating rod, and a high-resolution encoder, it achieves precise swinging and continuous torque holding at a predetermined angle α. It is self-locking and reliable, ensuring that the push plate, pressure roller, and cutter body maintain consistent positions each time they are executed, resulting in high cutting accuracy.

[0016] 4. This design is a pharmaceutical packaging composite film unwinding rack with multi-station switching. By adjusting the position of the auxiliary roller and the corresponding mating gap, it can adapt to composite film rolls of different diameters and thicknesses, with a wide range of applications, meeting the needs of various pharmaceutical packaging specifications. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a pharmaceutical packaging composite film unwinding rack with multi-station switching;

[0018] Figure 2 This is a cross-sectional elevation view of a pharmaceutical packaging composite film unwinding rack with multi-station switching.

[0019] Figure 3 A schematic diagram of the roll and auxiliary roll structure of a pharmaceutical packaging composite film unwinding rack with multi-station switching;

[0020] Figure 4 A schematic diagram of the connecting plate structure of a pharmaceutical packaging composite film unwinding rack with multi-station switching;

[0021] Figure 5 This is a schematic diagram of the support structure for a pharmaceutical packaging composite film unwinding rack with multi-station switching.

[0022] In the diagram: 1. Rotary motor one; 2. Rolling roller; 3. Auxiliary roller one; 4. Auxiliary roller two; 5. Support base; 6. Telescopic motor; 7. Slider; 8. Rotary motor two; 9. Fixed rod; 10. Contact roller; 11. Rotating rod; 12. Connecting plate; 13. Electric push rod; 14. Slide rod one; 15. Electric telescopic rod; 16. Pressing roller; 17. Blade body; 18. Slide rod two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution for a pharmaceutical packaging composite film unwinding rack with multi-station switching:

[0025] like Figure 2 and Figure 4As shown, the system includes a support base 5, with rotating rods 11 hinged to both sides of the support base 5. A rotary motor 8 is fixed to the L-shaped block of the support base 5 and connected by M6 bolts. The front end of its output shaft is connected to the rotating rods 11 via a spline and locked with an elastic retaining ring. The two ends of the rotating rods 11 are hinged to the bushing holes on the side of the support base 5 by φ8 pins. After the motor 8 is powered on, it drives the rotating rods 11 to rotate a predetermined angle α. The output torque is continuously maintained by the driver to prevent angle jumpback. After the rotating rod 11 rotates, the superimposed drive connecting plate 12 and subsequent push rods, slide rods and cutter body 17 swing synchronously at the same angle to complete the preparatory action for cutting the film material. A connecting plate 12 is fixedly installed on one side of the rotating rod 11. The connecting plate 12 is fixed to the side of the rotating rod 11, and the base of the electric push rod 13 is fixed on it by M5 bolts. Four holes are opened at the bottom of the connecting plate 12, through which the chrome-plated slide rod 14 is inserted and limited by an M8 nut. The push plate slides outside the slide rod 14. When the rotating rod 11 is positioned, the output rod of the electric push rod 13 passes through the connecting plate 12 and pushes the push plate to move linearly under the guidance of the slide rod 14. The push plate moves and carries the pressure roller 16 toward the rolling roller 2 to achieve initial pressing and positioning of the composite film. The top surface of the connecting plate 12 is bolted with an electric push rod 13. The output end of the electric push rod 13 passes through the outside of the connecting plate 12 and is connected to the push plate. The push plate and the connecting plate 12 are connected by four sliding rods 14. Two cylinders are fixedly connected to the bottom edge of the push plate. The ends of the two cylinders are welded with rings. The middle of the two rings is connected by a rotating shaft. The pressure roller 16 is sleeved on the outside of the rotating shaft. Two φ12 short cylinders are welded to the bottom of the push plate and φ30 annular rings are welded to the ends. After the φ10 rotating shaft passes through the middle, the PU-coated pressure roller 16 is sleeved and locked at both ends with M10 nuts. The outer diameter of the roll 2 and the contact surface of the pressure roller 16 have a clearance of 0.2~0.5 mm. The pressure roller 16 is pressed against the outside of the composite film and the roll 2 under the drive of the push plate, providing a certain pressure to ensure that the film material is tightly attached to the roll before cutting, preventing slippage or loose winding. The ends of the two rotating shafts are threaded with nuts on the outside of the ring. Two blocks are fixedly connected to the bottom edge of the push plate. One side of one block is bolted with an electric telescopic rod 15. A slide rod 18 is fixedly connected between the two blocks. A blade 17 is slidably connected to the outside of the slide rod 18. The chrome-plated slide rod 18 is fixed between the blocks. The blade 17 is fitted onto the slide rod 18 through a sliding block and is threadedly connected to the piston rod of the telescopic rod. The blade body 17 is made of SKD11 material, and the blade edge is ground at a 30° bevel angle. After the clamping and tension adjustment are completed, the electric telescopic rod 15 extends and pushes the blade body 17 to move smoothly back and forth along the slide rod 18, cutting the composite film attached to the rolling roller 2, thus achieving automatic slitting. The blade edge of the blade body 17 is close to the pressure roller 16 cylinder. The output end of the electric telescopic rod 15 is connected to the blade body 17 through the outside of one of the blocks. The bottom blade edge of the blade body 17 is close to the rolling roller 2.

[0026] like Figure 2 and Figure 5As shown, a base is bolted to the bottom of the support 5, and two support blocks are fixedly installed on the top surface of the base. A rotating hole is opened on one side of each of the two support blocks, and a rotating shaft is hinged to one side of each of the two support blocks. A rotary motor 1 is bolted to one side of one of the support blocks. The output end of the rotary motor 1 passes through the outside of the support block and connects to one of the rotating shafts. A reel is bolted to one end of each of the two rotating shafts. Two turntables are bolted to one side of each of the two reels. A circular groove is opened on one side of each of the two turntables, and a rotating shaft of a roller 2 is fitted on the inner wall of the circular groove.

[0027] like Figure 3 As shown, two rotating shafts are hinged to one side of each of the two reels. A block is bolted to one side of each of the four rotating shafts. Two rotating holes are opened on one side of each block. An auxiliary rod rotating shaft is fitted inside the rotating hole. An auxiliary rod 1 3 and an auxiliary rod 2 4 are fitted outside the auxiliary rod rotating shaft.

[0028] like Figure 5 As shown, a square plate is bolted to one side of the support base 5, and a telescopic motor 6 is bolted to one side of the square plate. The output end of the telescopic motor 6 passes through the outside of the square plate and connects to the slider 7. The telescopic motor 6 is installed on the square plate, and the bottom end of its piston rod is riveted to the slider 7. A long plate is welded to the top surface of the slider 7, and φ12 auxiliary pillars are vertically installed on both sides. Φ12 positioning holes are opened on the pillars to position and fix the rod 9. Elliptical blocks one and two and silicone-coated abutment rods 10 are hinged at both ends of the fixing rod 9. When the telescopic motor 6 is powered on, the slider 7 drives the long plate and auxiliary pillars to move along the base direction. The abutment rods 10 move with the pillars under the linkage of the elliptical blocks, adhering to the film core, realizing further compression and tension adjustment of the composite film, ensuring that the roll is evenly stressed and can continue to rotate and rewind normally. A long plate is fixedly installed on the top surface of the slider 7, and two auxiliary pillars are fixedly connected to the top surface of the long plate. Holes are opened on one side of the two auxiliary pillars, and fixing rods 9 are fixedly connected to the inner sidewalls of the two holes.

[0029] like Figure 5 As shown, both ends of the two fixed rods 9 are welded with collars. Elliptical block 1 is hinged to the outside of the collar via a connecting rod. Elliptical block 2 is hinged to the outside of elliptical block 1 via a connecting rod. Holes are opened on one side of each of the four elliptical blocks 2. Rotating shaft 4 is fitted into the holes of elliptical blocks 2. Abutting rod 10 is fitted onto the outside of rotating shaft 4.

[0030] like Figure 4 As shown, an L-shaped block is fixedly connected to one side of the support base 5, and a rotary motor 8 is bolted to one side of the L-shaped block. The output end of the rotary motor 8 is connected to a rotating rod 11 through the outside of the L-shaped block.

[0031] like Figure 4 As shown, nuts are bolted to the outer top of the four slide rods 14, and limit rods are bolted to the outer side of the slide rods 14.

[0032] like Figure 1 and Figure 5 As shown, the rotary motor 8 is electrically connected to an incremental or absolute encoder on its outer side. The incremental or absolute encoder is used to provide a continuous holding torque by the driver after the rotating rod 11 reaches the target angle, so as to prevent angle drift.

[0033] The working principle of this utility model is as follows: First, the output end of the rotary motor 8 rotates the rotating rod 11 by an angle. The driver provides a continuous holding torque to prevent angle drift and maintain the angle of the rotating rod 11, causing the connecting plate 12, electric push rod 13, slide rod 14, pressure roller 16, and blade body 17 to move. Then, the output end of the electric push rod 13 passes through the connecting plate 12, causing the push plate to move along the outside of the slide rod 14, bringing the pressure roller 16 close to the coiling roller 2. The outer side of the coiling roller 2 is covered with a composite film. Next, the output of the telescopic motor 6... The end passes through the block plate to push the slider 7, the long plate, and the auxiliary support to move their positions, so that the contact roller 10 is close to the composite film and the winding roller 2, making the composite film tightly adhere to the winding roller 2. The winding roller 2 rotates normally. Finally, the output end of the electric telescopic rod 15 passes through the block to push the cutter body 17 to move along the outside of the slide rod 18, cutting off the composite film on the outside of the winding roller 2. Due to the cooperation of the above components, and due to the cooperation of the contact roller 10 and the pressure roller 16 cylinder close to the winding roller 2, the composite film continues to be wound around the outside of the winding roller 2 after cutting, without stopping the machine to switch.

[0034] Rotary motor 28 drives the rotating rod 11 to a predetermined angle, and the encoder locks the torque; the rotating rod is linked to the connecting plate 12, the electric push rod 13 and the slide rod 14, which push the push plate to make the pressure roller 16 fit against the composite film and press it laterally towards the roller 2 to achieve the purpose of pre-pressing.

[0035] The telescopic motor 6 drives the slider 7 and the auxiliary support to move; the contact roller 10 automatically adheres to the outside of the composite film under the action of the connecting rod of the elliptical block one / two, forming a symmetrical force with the pressure roller 16, realizing the tight adhesion of the composite film to the roller 2 and slight tension control.

[0036] During cutting, the pressure roller 16 maintains a pre-pressurized state, while the contact roller 10 maintains lateral pressure. After cutting, the end of the composite film continues to be wound around the outside of the winding roller 2 due to the bidirectional cooperation between the pressure roller 16 and the contact roller 10, without stopping the machine and allowing for smooth switching.

[0037] After the current workstation is cut and rewound, the rotary motor 1 can be started to drive the turntable to switch to the next film roll workstation, repeating the above process to ensure continuous operation of the production line.

[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A pharmaceutical packaging composite film unwinding rack with multi-station switching, characterized in that, The system includes a support base (5), on both sides of which are hinged rotating rods (11). A connecting plate (12) is fixedly installed on one side of the rotating rod (11). An electric push rod (13) is bolted to the top surface of the connecting plate (12). The output end of the electric push rod (13) is connected to a push plate through the outside of the connecting plate (12). The push plate and the connecting plate (12) are connected by four sliding rods (14). Two cylinders are fixedly connected to the bottom edge of the push plate. A ring is welded to the end of each cylinder. The middle of the two rings is connected by a rotating shaft. A sleeve is fitted on the outside of the rotating shaft. The pressure roller (16) has nuts threadedly connected to the ends of the two rotating shafts on the outer side of the ring. Two blocks are fixedly connected to the bottom edge of the push plate. One side of one of the blocks is bolted to an electric telescopic rod (15). A slide rod (18) is fixedly connected between the two blocks. A blade (17) is slidably connected to the outer side of the slide rod (18). The blade edge of the blade (17) is close to the pressure roller (16). The output end of the electric telescopic rod (15) is connected through the blade (17) from the outer side of one of the blocks. The bottom blade edge of the blade (17) is close to the rolling roller (2).

2. The pharmaceutical packaging composite film unwinding rack with multi-station switching according to claim 1, characterized in that, The bottom surface of the support base (5) is bolted with a base, and the top surface of the base is fixedly installed with two support blocks. One side of each of the two support blocks is provided with a rotating hole, and one side of each of the two support blocks is hinged with a rotating shaft. One side of one of the support blocks is bolted with a rotary motor (1). The output end of the rotary motor (1) passes through the outside of the support block and is connected to one of the rotating shafts. One end of each of the two rotating shafts is bolted with a reel. One side of each of the two reels is bolted with two turntables. One side of each of the two turntables is provided with a circular groove, and the inner side wall of the circular groove is fitted with a roller (2) rotating shaft.

3. The pharmaceutical packaging composite film unwinding rack with multi-station switching according to claim 2, characterized in that, Two rotating shafts are hinged to one side of each of the two reels. A block is bolted to one side of each of the four rotating shafts. Two rotating holes are opened on one side of each block. An auxiliary rod rotating shaft is fitted inside the rotating hole. An auxiliary rod one (3) and an auxiliary rod two (4) are fitted outside the auxiliary rod rotating shaft.

4. The pharmaceutical packaging composite film unwinding rack with multi-station switching according to claim 1, characterized in that, A block plate is bolted to one side of the support base (5), and a telescopic motor (6) is bolted to one side of the block plate. The output end of the telescopic motor (6) passes through the outside of the block plate and connects to the slider (7). A long plate is fixedly installed on the top surface of the slider (7). Two auxiliary pillars are fixedly connected to the top surface of the long plate. Holes are opened on one side of the two auxiliary pillars, and fixing rods (9) are fixedly connected to the inner sidewalls of the two holes.

5. A pharmaceutical packaging composite film unwinding rack with multi-station switching as described in claim 4, characterized in that, Both ends of the two fixing rods (9) are welded with collars. An elliptical block 1 is hinged to the outside of the collar via a connecting rod. An elliptical block 2 is hinged to the outside of the elliptical block 1 via a connecting rod. Holes are opened on one side of each of the four elliptical blocks 2. A rotating shaft 4 is fitted into the hole of the elliptical block 2. An abutting rod (10) is fitted onto the outside of the rotating shaft 4.

6. The pharmaceutical packaging composite film unwinding rack with multi-station switching according to claim 1, characterized in that, An L-shaped block is fixedly connected to one side of the support base (5), and a rotary motor (8) is bolted to one side of the L-shaped block. The output end of the rotary motor (8) is connected to a rotating rod (11) through the outside of the L-shaped block.

7. The pharmaceutical packaging composite film unwinding rack with multi-station switching according to claim 1, characterized in that, Nuts are bolted to the outer top of the four slide rods (14), and a limit rod is bolted to the outer side of the slide rod (14).

8. A pharmaceutical packaging composite film unwinding rack with multi-station switching according to claim 6, characterized in that, The rotary motor (8) is electrically connected to an incremental or absolute encoder on its outer side. The incremental or absolute encoder is used to provide a continuous holding torque by the driver after the rotating rod (11) reaches the target angle, so as to prevent angle drift.

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