Compact cover opening and closing device
By designing a compact cap opening and closing device, the automatic opening and closing of aseptic bags was achieved, solving the problems of low efficiency of manual operation and aseptic sealing, and improving the efficiency of the filling process and product quality.
Patent Information
- Application Number
- CN202520699543.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-14
AI Technical Summary
In the existing technology, manual opening and closing of caps during the aseptic bag filling process is inefficient, costly, and makes it difficult to guarantee aseptic sealing, which affects product quality and safety.
A compact cap opening and closing device was designed, including a movable plate, a centering mechanism, a hollow cap opening shaft, cap opening and closing fixtures, a swing cylinder, and other components. The device achieves automatic cap opening and closing through mechanization, ensuring the filling process in a sterile environment.
It improved work efficiency, reduced labor costs, ensured product quality and safety during the aseptic filling process, and achieved aseptic packaging.
Smart Images
Figure CN223935102U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing technology, and in particular to a compact opening and closing lid device. Background Technology
[0002] Aseptic bags are widely used in the food processing industry for containing liquid materials such as fruit juice, dairy products, and solutions (aqueous solutions and alcoholic solutions) due to their sterility, non-toxicity, excellent low-temperature resistance, good chemical stability, and electrical insulation.
[0003] In existing technologies, when filling aseptic bags with liquid materials, the lid needs to be manually removed from the bag before the bag is placed into the filling machine for filling. After filling, the lid is then manually reattached to the bag opening. This method is inefficient and consumes a lot of manpower and time. Furthermore, a sterile filling environment must be maintained during food filling. After filling, manually closing the bag at room temperature can easily lead to contamination of the material inside, making true aseptic sealing difficult and affecting product quality and safety. Utility Model Content
[0004] Therefore, it is necessary to provide a compact lid opening and closing device to address the problems of low work efficiency, high labor and time costs, and difficulty in guaranteeing product quality and safety in the existing technology of manually opening and closing lids.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A compact cover opening and closing device includes a movable plate, which is installed in conjunction with a cover opening hollow shaft through a centering mechanism. A cover opening and closing fixture is installed at the end of the cover opening hollow shaft. A cover opening drive shaft is concentrically installed inside the cover opening hollow shaft. One end of the cover opening drive shaft is connected to the output end of a swing cylinder, and the other end of the cover opening drive shaft is connected to the power input end of the cover opening and closing fixture.
[0007] The centering mechanism drives the hollow shaft of the cover opening to rotate relative to the movable plate, thereby driving the working end of the cover opening and closing fixture to align with the sealing cover. The swing cylinder drives the cover opening transmission shaft to rotate relative to the hollow shaft of the cover opening, thereby driving the cover opening and closing fixture to clamp or loosen the sealing cover.
[0008] Under the action of the linear drive module, the movable plate reciprocates linearly along the axial direction of the hollow shaft for opening the cover, thereby pulling the sealing cover out of the bag opening of the packaging bag or inserting the sealing cover into the bag opening through the opening and closing fixture.
[0009] As a further improvement to the above technical solution:
[0010] The centering mechanism is structured as follows: it includes a centering cylinder fixed to a movable plate, the output end of the centering cylinder is connected to a spherical bearing, the spherical bearing is hinged to a clamp by a locking pin, and the clamp is installed on the outer circumferential surface of the open-cover hollow shaft.
[0011] The centering cylinder extends or retracts, thereby driving the hollow shaft of the cover opening to rotate relative to the movable plate through the clamp.
[0012] The structure of the opening and closing cover fixture is as follows: it includes a mounting plate fixed to the end of the hollow shaft for opening the cover, and a drive rod fixed to the end of the drive shaft for opening the cover. The two ends of the drive rod are respectively hinged with rotating arms. A single rotating arm is hinged to a clamping arm, and a single clamping arm is hinged to the mounting plate through a connecting pin.
[0013] When the cover-opening drive shaft rotates relative to the cover-opening hollow shaft, the drive rod rotates, causing the two rotating arms to rotate, which in turn causes the two clamping arms to rotate around the corresponding connecting pins, thereby clamping or releasing the sealing cover.
[0014] A limit rod is installed on the mounting plate to limit the rotation angle of the two clamping arms.
[0015] A concave arc surface is formed on the side wall of a single clamping arm, and the shape of the concave arc surface corresponds to the shape of the side wall of the sealing cover.
[0016] The opening and closing fixture also includes a closing pressure block, which is used to press the sealing cap tightly inside the opening of the packaging bag.
[0017] The linear drive module includes a first drive component fixed to a movable plate, and the output end of the first drive component is connected to a second drive component.
[0018] A sleeve is fitted onto the outer circumference of the hollow shaft with the cover.
[0019] A first sealing ring assembly is fitted between the inner wall of the sleeve and the outer circumferential surface of the open-cover hollow shaft.
[0020] A second sealing ring assembly is fitted between the inner wall of the openable hollow shaft and the outer circumferential surface of the openable drive shaft.
[0021] The beneficial effects of this utility model are as follows:
[0022] This utility model has a compact and reasonable structure and is easy to operate. By setting up an opening and closing fixture, it can automatically remove and install caps on packaging bags, effectively improving work efficiency and preventing the liquid inside the packaging bags from being contaminated, thus improving product quality and safety.
[0023] This utility model also has the following advantages:
[0024] (1) By setting an alignment mechanism, the opening and closing tool can be rotated by the hollow shaft of the opening and closing tool, so that when the opening and closing of the tool is required, the working end of the opening and closing tool is aligned with the sealing cap; when filling, the working end of the opening and closing tool 8 is moved away from the front of the filling device to avoid affecting the working process of the filling mechanism.
[0025] (2) By setting a limit rod, the problem of being unable to reset due to excessive opening angle between the two clamping arms can be effectively avoided.
[0026] (3) By setting the concave arc surface, it can further fit the outer wall surface of the sealing cover, thereby improving the clamping stability of the opening and closing cover tooling.
[0027] (4) By setting a first drive component and a lid closing pressure block, the second drive component drives the lid opening and closing fixture to put the sealing lid into the corresponding bag opening, and then presses the sealing lid into the corresponding bag opening, thereby ensuring the sealing performance of the packaging bag. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of this utility model.
[0029] Figure 2 This is an exploded view of the present invention.
[0030] Figure 3 for Figure 1 The right view.
[0031] Figure 4 This is a full sectional view of the present invention.
[0032] Figure 5 This is a schematic diagram of the present invention in its working state.
[0033] The components include: 1. First drive assembly; 2. Second drive assembly; 3. Movable plate; 4. Sleeve; 5. Swing cylinder; 6. Centering mechanism; 7. Filling chamber; 8. Opening and closing fixture; 9. Opening drive shaft; 10. Opening hollow shaft; 11. Filling device;
[0034] 601. Centering cylinder; 602. Spherical plain bearing; 603. Locking pin; 604. Clamp;
[0035] 801. Drive rod; 802. Rotating arm; 803. Clamping arm; 804. Limiting rod; 805. Cover closing block; 806. Connecting pin; 807. Concave arc surface; 808. Mounting plate. Detailed Implementation
[0036] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0037] The structure and function of this utility model are as follows:
[0038] like Figures 1-5 As shown, a compact lid opening and closing device includes a movable plate 3, which is installed in conjunction with a lid opening hollow shaft 10 via a centering mechanism 6. A lid opening and closing fixture 8 is installed at the end of the lid opening hollow shaft 10. A lid opening drive shaft 9 is concentrically installed inside the lid opening hollow shaft 10. One end of the lid opening drive shaft 9 is connected to the output end of a swing cylinder 5, and the other end of the lid opening drive shaft 9 is connected to the power input end of the lid opening and closing fixture 8. The centering mechanism 6 drives the lid opening hollow shaft 10 to rotate relative to the movable plate 3, thereby driving the working end of the lid opening and closing fixture 8 to align with the sealing cover. The swing cylinder 5 drives the lid opening drive shaft 9 to rotate relative to the lid opening hollow shaft 10, thereby driving the lid opening and closing fixture 8 to clamp or loosen the sealing cover. Under the action of a linear drive module, the movable plate 3 reciprocates linearly along the axial direction of the lid opening hollow shaft 10, thereby pulling the sealing cover out of the bag opening of the packaging bag or inserting the sealing cover into the bag opening through the lid opening and closing fixture 8. By setting up the cap-opening and closing fixture 8, the packaging bags can be automatically opened and closed in the filling chamber 7, thereby achieving automated production, effectively improving work efficiency and reducing labor costs.
[0039] In this invention, the packaging bag is an aseptic bag made from polyethylene granules. It possesses properties such as sterility, non-toxicity, excellent low-temperature resistance, good chemical stability, and electrical insulation, and is commonly used as an inner packaging bag in the food industry. The aseptic bag structure includes a bag body with an opening forming the bag mouth. A sealing cap is installed inside the bag mouth, which can be a flat cap or other types of box caps, primarily used to seal the bag mouth. In the initial state, there is approximately a 5mm gap between the sealing cap and the bag mouth, facilitating subsequent opening using the cap-opening / closing fixture 8. When closing the cap, the gap between the sealing cap and the bag mouth must be eliminated, and the sealing cap must be fully pressed into the bag mouth to achieve a seal.
[0040] like Figure 5 As shown, the cap opening and closing device of this utility model is installed on the filling chamber 7, and the cap opening and closing tooling 8 is arranged inside the filling chamber 7. During filling, steam is introduced into the filling chamber 7 to form a sterile environment. The filling chamber 7 is also equipped with a filling device 11 for filling, which fills the opened packaging bag with liquid material through the filling device 11.
[0041] The centering mechanism 6 has the following structure: it includes a centering cylinder 601 fixed on the movable plate 3. The output end of the centering cylinder 601 is connected to a spherical bearing 602. The spherical bearing 602 is hinged to a clamp 604 via a locking pin 603. The clamp 604 is installed on the outer circumferential surface of the hollow shaft 10 for opening the lid. The centering cylinder 601 extends or retracts, thereby driving the hollow shaft 10 for opening the lid to rotate relative to the movable plate 3 via the clamp 604. By setting the centering mechanism 6, the opening and closing lid fixture 8 can be rotated via the hollow shaft 10 for opening the lid, so that when opening or closing the lid is required, the working end of the opening and closing lid fixture 8 is aligned with the sealing lid; during filling, the working end of the opening and closing lid fixture 8 is moved away from the front of the filling device 11 to avoid affecting the working process of the filling device 11.
[0042] The structure of the cover opening and closing fixture 8 includes a mounting plate 808 fixed to the end of the cover opening hollow shaft 10, and a drive rod 801 fixed to the end of the cover opening drive shaft 9. Rotating arms 802 are hinged to both ends of the drive rod 801. Each rotating arm 802 is hinged to a clamping arm 803, and each clamping arm 803 is hinged to the mounting plate 808 via a connecting pin 806. When the cover opening drive shaft 9 rotates relative to the cover opening hollow shaft 10, the rotation of the drive rod 801 drives the two rotating arms 802 to rotate, thereby causing the two clamping arms 803 to rotate around their corresponding connecting pins 806, thus clamping or releasing the sealing cover. By setting the drive rod 801, rotating arms 802, and clamping arms 803, the sealing cover can be stably clamped.
[0043] A limit rod 804 is installed on the mounting plate 808 to limit the rotation angle of the two clamping arms 803. By setting the limit rod 804, the problem of the two clamping arms 803 failing to reset due to an excessive opening angle can be effectively avoided.
[0044] A concave arc surface 807 is formed on the side wall of a single clamping arm 803, and the shape of the concave arc surface 807 corresponds to the shape of the side wall of the sealing cover. By setting the concave arc surface 807, it can further fit the outer wall of the sealing cover, thereby improving the clamping stability of the opening and closing cover fixture 8.
[0045] The lid opening and closing fixture 8 also includes a lid closing pressure block 805, which is used to press the sealing lid tightly into the opening of the packaging bag. By setting the lid closing pressure block 805, the working stability of the lid closing process can be improved.
[0046] The linear drive module includes a first drive assembly 1 fixed on the movable plate 3, and the output end of the first drive assembly 1 is connected to a second drive assembly 2. The second drive assembly 2 is connected to the outer wall of the filling chamber 7. By setting the first drive assembly 1, after the second drive assembly 2 drives the cap opening and closing fixture 8 to put the sealing cap into the corresponding bag opening (at this time, there is still a gap of about 5mm between the sealing cap and the bag opening), the sealing cap is pressed into the corresponding bag opening, thereby ensuring the sealing performance of the packaging bag.
[0047] In this invention, both the first drive assembly 1 and the second drive assembly 2 are cylinders.
[0048] A sleeve 4 is fitted onto the outer circumference of the hollow shaft 10 for opening the lid. The opening sleeve 4 is fixed to the outer wall of the filling chamber 7. The opening and closing device of this utility model is arranged horizontally during operation. By setting the opening sleeve 4, the hollow shaft 10 for opening the lid can be supported, thereby improving the movement stability of the hollow shaft 10 for opening the lid.
[0049] A first sealing ring assembly is fitted between the inner wall of the sleeve 4 and the outer circumferential surface of the hollow shaft 10 for opening the cap; a second sealing ring assembly is fitted between the inner wall of the hollow shaft 10 for opening the cap and the outer circumferential surface of the drive shaft 9 for opening the cap. By setting the sealing ring assemblies, the sealing performance inside the filling chamber 7 can be guaranteed during the filling process.
[0050] The working process of this utility model is as follows:
[0051] When opening the lid, the centering mechanism 6 first drives the hollow shaft 10 to rotate relative to the movable plate 3, so that the working end of the lid opening and closing fixture 8 is aligned with the opening of the packaging bag with the sealing lid installed (at this time, the two clamping arms 803 of the lid opening and closing fixture 8 are in the open state); then the second drive assembly 2 drives the lid opening and closing fixture 8 to make a linear motion in the horizontal direction close to the sealing lid; after the motion is in place, the swing cylinder 5 drives the lid opening transmission shaft 9 to rotate, so that the two clamping arms 803 close to clamp the sealing lid; then the second drive assembly 2 drives the lid opening and closing fixture 8 to make a linear motion in the opposite direction in the horizontal direction, so as to pull the sealing lid off the bag opening;
[0052] Next, the centering mechanism 6 drives the opening and closing fixture 8 to rotate in the opposite direction through the opening hollow shaft 10, so that the opening and closing fixture 8 returns to its original position, and then the filling device 11 fills the opened packaging bag.
[0053] After filling, the cap is closed. First, the centering mechanism 6 drives the cap-opening hollow shaft 10 to rotate relative to the movable plate 3, so that the working end of the cap-opening and closing fixture 8 is re-aligned with the bag opening. Then, the second drive assembly 2 drives the cap-opening and closing fixture 8 to move in a straight line along the horizontal direction close to the bag opening, so that the sealing cap held by the two clamping arms 803 is placed into the bag opening. Then, the swing cylinder 5 drives the cap-opening transmission shaft 9 to rotate, so that the two clamping arms 803 open, thereby releasing the sealing cap. Then, the first drive assembly 1 drives the cap-opening and closing fixture 8 to move in a straight line along the horizontal direction, thereby pressing the sealing cap into the bag opening, thus installing the sealing cap into the bag opening.
[0054] After the lid is closed, the lid opening and closing device resets and waits to perform the next lid opening and closing task.
[0055] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.
Claims
1. A compact opening and closing cover device, characterized in that: Includes a movable plate (3), which is installed in conjunction with a hollow shaft (10) for opening the cover via a centering mechanism (6). An opening and closing cover fixture (8) is installed at the end of the hollow shaft (10). An opening and closing cover drive shaft (9) is concentrically installed inside the hollow shaft (10). One end of the opening and closing cover drive shaft (9) is connected to the output end of the swing cylinder (5), and the other end of the opening and closing cover drive shaft (9) is connected to the power input end of the opening and closing cover fixture (8). The centering mechanism (6) drives the opening hollow shaft (10) to rotate relative to the movable plate (3), thereby driving the working end of the opening and closing tool (8) to align with the sealing cover. The swing cylinder (5) drives the opening transmission shaft (9) to rotate relative to the opening hollow shaft (10), thereby driving the opening and closing tool (8) to clamp or loosen the sealing cover. Under the action of the linear drive module, the movable plate (3) reciprocates linearly along the axial direction of the open cover hollow shaft (10), thereby pulling the sealing cover out of the bag opening of the packaging bag through the opening and closing fixture (8), or inserting the sealing cover into the bag opening of the packaging bag.
2. The compact opening and closing cover device as described in claim 1, characterized in that: The centering mechanism (6) has the following structure: it includes a centering cylinder (601) fixed on the movable plate (3), the output end of the centering cylinder (601) is connected to a spherical bearing (602), the spherical bearing (602) is hinged to a clamp (604) through a locking pin (603), and the clamp (604) is installed on the outer circumference of the open-cover hollow shaft (10); The centering cylinder (601) extends or retracts, thereby driving the hollow shaft (10) of the cover opening to rotate relative to the movable plate (3) through the clamp (604).
3. The compact opening and closing cover device as described in claim 1, characterized in that: The structure of the opening and closing cover fixture (8) is as follows: it includes a mounting plate (808) fixed to the end of the opening hollow shaft (10) and a drive rod (801) fixed to the end of the opening drive shaft (9). The two ends of the drive rod (801) are respectively hinged with rotating arms (802). A single rotating arm (802) is hinged to a clamping arm (803), and a single clamping arm (803) is hinged to the mounting plate (808) through a connecting pin (806). When the cover opening drive shaft (9) rotates relative to the cover opening hollow shaft (10), the drive rod (801) rotates to drive the two rotating arms (802) to rotate, thereby causing the two clamping arms (803) to rotate around the corresponding connecting pin (806), and then clamping or loosening the sealing cover through the two clamping arms (803).
4. A compact opening and closing cover device as described in claim 3, characterized in that: A limiting rod (804) is installed on the mounting plate (808) to limit the rotation angle of the two clamping arms (803).
5. A compact opening and closing cover device as described in claim 3, characterized in that: A concave arc surface (807) is provided on the side wall of a single clamping arm (803), and the shape of the concave arc surface (807) corresponds to the shape of the side wall of the sealing cover.
6. A compact opening and closing cover device as described in claim 3, characterized in that: The opening and closing fixture (8) also includes a closing pressure block (805), which is used to press the sealing cap tightly inside the opening of the packaging bag.
7. A compact opening and closing cover device as described in claim 1, characterized in that: The linear drive module includes a first drive component (1) fixed on the movable plate (3), and the output end of the first drive component (1) is connected to the second drive component (2).
8. A compact opening and closing cover device as described in claim 1, characterized in that: A sleeve (4) is fitted onto the outer circumference of the hollow shaft (10) with the cover opening.
9. A compact opening and closing cover device as described in claim 8, characterized in that: A first sealing ring assembly is installed between the inner wall of the sleeve (4) and the outer circumferential surface of the open-cover hollow shaft (10).
10. A compact opening and closing cover device as described in claim 1, characterized in that: A second sealing ring assembly is fitted between the inner wall of the hollow shaft (10) and the outer circumferential surface of the drive shaft (9).