A positioning structure for packaging bags in a cake-shaped tea packaging machine
By introducing a fixing and adjusting device into the tea cake packaging machine, and utilizing the cooperation of a vacuum pump and a drive motor, the problem of packaging bag detachment was solved, achieving stable positioning and adaptability to fixing bags of different materials, thus improving packaging efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU NANSHAN ECOLOGICAL VALLEY CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-03
AI Technical Summary
In the existing positioning structure of cake-shaped tea packaging machines, the packaging bags are prone to detaching due to insufficient suction force of the suction cups, leading to frequent machine stops for suction cup adjustments.
Using a fixing device and an adjusting device, a vacuum pump generates negative pressure to adsorb the packaging bag. Combined with the cooperation of a drive motor and an adjusting rod, this ensures that the packaging bag does not detach when filling tea cakes, and the adjusting device can adapt to packaging bags of different materials.
This effectively prevents the packaging bag from detaching due to insufficient suction force of the suction cup when filling tea cakes, reduces the need for frequent machine stops for adjustment, and prevents the packaging bag from being damaged due to excessive tightening.
Smart Images

Figure CN224448380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cake-shaped tea packaging machines, and in particular to a packaging bag positioning structure for cake-shaped tea packaging machines. Background Technology
[0002] The packaging bag positioning structure of the cake-shaped tea packaging machine is a key mechanical structure that ensures the packaging bag can be accurately fitted, aligned, and fixed during the packaging process, thereby guaranteeing the packaging quality. Its core function is to solve the packaging positioning problem caused by the irregular shape, thick thickness, and easy rolling of cake-shaped tea. The cake-shaped tea packaging machine is a device specifically designed for the automated packaging of round cake-shaped tea. It is mainly used for the processes of metering, bag making, filling, and sealing of bulk cake tea to achieve sealed packaging.
[0003] When workers need to package tea cakes, the equipment places the packaging bag on the positioning structure so that the positioning structure can position the packaging bag. However, the existing positioning structure usually uses suction cups to fix the packaging bag during use. As a result, the packaging bag may detach from the suction cup when filling the tea cake because the suction force of the suction cup is too weak, which leads to the problem that workers need to stop the machine frequently to adjust the suction cup. Utility Model Content
[0004] The purpose of this invention is to solve the problem in the prior art where workers need to frequently stop the machine to adjust the suction cup, and to propose a positioning structure for the packaging bag of a cake-shaped tea packaging machine.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a positioning structure for a packaging bag of a cake-shaped tea packaging machine, comprising a main frame, an anti-tilting frame installed on the surface of the main frame, a fixing device provided on the surface of the main frame, the fixing device including a placement plate, the placement plate being fixedly connected to one side of the main frame, a suction hole being opened on one side of the placement plate, the suction hole communicating with an air cavity inside the main frame, an exhaust pipe being fixedly connected to one side of the main frame, the exhaust pipe communicating with an air cavity inside the main frame, a drive motor being fixedly connected inside the main frame, and an adjusting rod being fixedly connected to the drive end of the drive motor. The adjusting rod is located inside the main frame. A push plate is threadedly connected to the surface of the adjusting rod. A baffle is fixedly connected to the surface of the push plate. The baffle is slidably connected to the interior of the main frame. A connection port is opened on the surface of the baffle, and the connection port is aligned with the air port of the exhaust pipe. A guide groove is opened inside the main frame, and the baffle is slidably connected to the interior of the guide groove. An air extraction assembly is provided on the surface of the exhaust pipe. The air extraction assembly includes a vacuum pump. The vacuum pump is fixedly connected to the surface of the exhaust pipe and is located on one side of the main frame. The vacuum pump can cooperate with the exhaust pipe to achieve the purpose of air extraction.
[0006] Preferably, the surface of the exhaust pipe is provided with an adjustment device, the adjustment device including a main sleeve, the main sleeve being fixedly connected to the surface of the exhaust pipe and fixedly connected to one side of the main frame, the main sleeve being able to cooperate with the exhaust pipe and the main frame to achieve the purpose of supporting the main sleeve.
[0007] Preferably, the main sleeve is rotatably connected to a rotating block, the opening on the surface of the rotating block is aligned with the exhaust pipe, and the rotating block can cooperate with the main sleeve to achieve the purpose of supporting the rotating block.
[0008] Preferably, the rotating block's rotating shaft is fixedly connected to a rotating disk, which is located on one side of the main sleeve. The rotating disk can cooperate with the rotating block to facilitate the worker's adjustment of the rotating block's rotation.
[0009] Preferably, the rotating disk is internally threaded with a positioning rod, which is located on one side of the rotating block. The positioning rod can cooperate with the rotating disk to support the positioning rod.
[0010] Preferably, a positioning hole is provided on one side of the main sleeve, and the positioning rod is inserted into the interior of the positioning hole. The positioning hole can cooperate with the main sleeve to achieve the purpose of storing the positioning rod.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. In this utility model, by setting a fixing device, when the worker needs to position the tea packaging bag, the vacuum pump is started. The vacuum pump draws air from inside the main frame through the exhaust pipe. The suction hole is affected by the gas flow and generates negative pressure. The working equipment places the packaging bag on the placement plate. The suction hole on the surface of the placement plate will suck the packaging bag onto the placement plate. When the tea cake is filled, the drive motor is started. The drive motor drives the adjusting rod. The adjusting rod rotates and adjusts the push plate. The push plate drives the baffle to rise. The connection port on the surface of the baffle is away from the air port of the exhaust pipe. The baffle blocks the air port of the exhaust pipe. The negative pressure inside the suction hole is reduced and disappears. The packaging bag is affected by the tea cake and slides downward. By setting a fixing device, it is possible to effectively facilitate the worker to position the tea packaging bag. It avoids the situation where the packaging bag will fall off the suction cup due to the weak suction force when filling the tea cake, thereby reducing the problem of the worker having to stop the machine frequently to adjust the suction cup.
[0013] 2. In this utility model, by setting an adjustment device, when the worker needs to fix packaging bags of different materials, the worker rotates the positioning rod, the positioning rod retracts and disengages from the positioning hole, the worker rotates the rotating disk, the rotating disk drives the rotating block, the opening on the surface of the rotating block gradually becomes larger or smaller, and the suction force of the air hole will change. When the rotating block rotates to the designated position, the worker rotates the positioning rod, the positioning rod extends and inserts into the positioning hole. By setting an adjustment device, it is possible to effectively and conveniently fix packaging bags of different materials, avoid the surface of the packaging bag from being over-tightened, and thus reduce the possibility of damage to the packaging bag. Attached Figure Description
[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a positioning structure for a packaging bag in a cake-shaped tea packaging machine.
[0015] Figure 2 This utility model provides a schematic diagram of a fixing device for positioning the packaging bag of a cake-shaped tea packaging machine.
[0016] Figure 3 This utility model proposes a positioning structure for the packaging bag of a cake-shaped tea packaging machine. Figure 2 Enlarged structural diagram at point A in the middle;
[0017] Figure 4 This utility model provides a schematic diagram of the adjustment device for the positioning structure of the packaging bag in a cake-shaped tea packaging machine.
[0018] Figure 5 This utility model proposes a positioning structure for the packaging bag of a cake-shaped tea packaging machine. Figure 4 Enlarged structural diagram at point B.
[0019] Legend:
[0020] 1. Main frame; 2. Anti-tilt frame; 3. Fixing device; 31. Suction hole; 32. Placement plate; 33. Drive motor; 34. Adjusting rod; 35. Baffle; 36. Push plate; 37. Connection port; 38. Guide groove; 39. Exhaust pipe; 310. Vacuum pump; 4. Adjusting device; 41. Main sleeve; 42. Rotating block; 43. Positioning rod; 44. Rotating disk; 45. Positioning hole. Detailed Implementation
[0021] Please see Figures 1-5 This utility model provides a technical solution: a positioning structure for a packaging bag of a cake-shaped tea packaging machine, including a main frame 1, an anti-tilting frame 2 installed on the surface of the main frame 1, and a fixing device 3 provided on the surface of the main frame 1.
[0022] The following section will describe in detail the specific setup and function of its fixing device 3 and adjusting device 4.
[0023] In this embodiment: the fixing device 3 includes a placement plate 32, which is fixedly connected to one side of the main frame 1. A suction hole 31 is provided on one side of the placement plate 32, which communicates with the air chamber inside the main frame 1. An exhaust pipe 39 is fixedly connected to one side of the main frame 1, which communicates with the air chamber inside the main frame 1. A drive motor 33 is fixedly connected inside the main frame 1. An adjusting rod 34 is fixedly connected to the drive end of the drive motor 33. The adjusting rod 34 is located inside the main frame 1. A push plate 36 is threadedly connected to the surface of the adjusting rod 34. A baffle 35 is fixedly connected to the surface of the push plate 36. The baffle 35 is slidably connected to the inside of the main frame 1. A connection port 37 is provided on the surface of the baffle 35, which is aligned with the air port of the exhaust pipe 39. A guide groove 38 is provided inside the main frame 1. The baffle 35 is slidably connected to the inside of the guide groove 38. An air extraction component is provided on the surface of the exhaust pipe 39.
[0024] Specifically, the air extraction assembly includes a vacuum pump 310, which is fixedly connected to the surface of the exhaust pipe 39. The vacuum pump 310 is located on one side of the main frame 1 and can cooperate with the exhaust pipe 39 to achieve the purpose of air extraction.
[0025] Specifically, an adjustment device 4 is provided on the surface of the exhaust pipe 39. The adjustment device 4 includes a main sleeve 41, which is fixedly connected to the surface of the exhaust pipe 39 and fixedly connected to one side of the main frame 1.
[0026] In this embodiment, the main sleeve 41 can cooperate with the exhaust pipe 39 and the main frame 1 to support the main sleeve 41.
[0027] In this embodiment, a rotating block 42 is rotatably connected inside the main sleeve 41. The opening on the surface of the rotating block 42 is aligned with the exhaust pipe 39. The rotating block 42 can cooperate with the main sleeve 41 to support the rotating block 42.
[0028] Specifically, the rotating shaft of the rotating block 42 is fixedly connected to the rotating disk 44, which is located on one side of the main sleeve 41.
[0029] In this embodiment, the rotating disk 44 can cooperate with the rotating block 42 to facilitate the worker in adjusting the rotation of the rotating block 42.
[0030] Specifically, the rotating disk 44 has an internal threaded connection to a positioning rod 43, which is located on one side of the rotating block 42. The positioning rod 43 can cooperate with the rotating disk 44 to support the positioning rod 43.
[0031] Specifically, a positioning hole 45 is provided on one side of the main sleeve 41, and the positioning rod 43 is inserted into the positioning hole 45.
[0032] In this embodiment, the positioning hole 45 can cooperate with the main sleeve 41 to achieve the purpose of accommodating the positioning rod 43.
[0033] Working Principle: By setting the fixing device 3, when the worker needs to position the tea packaging bag, the vacuum pump 310 is started. The vacuum pump 310 draws air from inside the main frame 1 through the exhaust pipe 39. The suction hole 31 generates negative pressure due to the gas flow. The working device places the packaging bag on the placement plate 32, and the suction hole 31 on the surface of the placement plate 32 will suck the packaging bag onto the placement plate 32. When the tea cake is loaded, the drive motor 33 is started. The drive motor 33 drives the adjusting rod 34. The adjusting rod 34 rotates and adjusts the push plate 36. The push plate 36 drives the baffle 35 to rise. The connection port 37 on the surface of the baffle 35 is away from the air port of the exhaust pipe 39. The baffle 35 blocks the air port of the exhaust pipe 39, and the negative pressure inside the suction hole 31 decreases and disappears. The packaging bag is affected by the tea cake and slides downward. By setting the fixing device 3, it is possible to effectively facilitate the worker to position the tea packaging bag. Positioning is achieved to prevent the packaging bag from detaching from the suction cup when filling tea cakes due to insufficient suction force. This reduces the need for frequent machine stops to adjust the suction cup. Furthermore, by setting up the adjustment device 4, when the worker needs to fix packaging bags of different materials, rotating the positioning rod 43 causes it to retract and disengage from the positioning hole 45. The worker then rotates the rotating disk 44, which drives the rotating block 42. The opening on the surface of the rotating block 42 gradually increases or decreases, changing the suction force of the air vent. When the rotating block 42 reaches the designated position, the worker rotates the positioning rod 43, which extends and inserts into the positioning hole 45. The adjustment device 4 effectively facilitates the worker in fixing packaging bags of different materials, preventing excessive tightening of the packaging bag surface and reducing the risk of damage.
Claims
1. A cake tea packaging machine bag positioning structure comprising a main frame (1), characterized in that: The surface of the main frame (1) is equipped with an anti-tilt bracket (2); The surface of the main frame (1) is provided with a fixing device (3), the fixing device (3) includes a placement plate (32), the placement plate (32) is fixedly connected to one side of the main frame (1); A suction hole (31) is provided on one side of the placement plate (32), and the suction hole (31) communicates with the air chamber inside the main frame (1). An exhaust pipe (39) is fixedly connected to one side of the main frame (1), and the exhaust pipe (39) communicates with the air chamber inside the main frame (1). A drive motor (33) is fixedly connected inside the main frame (1), and an adjusting rod (34) is fixedly connected to the drive end of the drive motor (33). The adjusting rod (34) is located inside the main frame (1). The surface of the push plate (36) is threadedly connected to the push plate (36), and the surface of the push plate (36) is fixedly connected to the baffle (35). The baffle (35) is slidably connected to the interior of the main frame (1). The surface of the baffle (35) is provided with a connection port (37), which is aligned with the air port of the exhaust pipe (39). The interior of the main frame (1) is provided with a guide groove (38), and the baffle (35) is slidably connected to the interior of the guide groove (38). The surface of the exhaust pipe (39) is provided with an air extraction component.
2. A pack positioning structure for a cake tea packaging machine according to claim 1, characterised in that: The air extraction assembly includes a vacuum pump (310), which is fixedly connected to the surface of the exhaust pipe (39) and is located on one side of the main frame (1).
3. The packer bag positioning structure of a cake tea packaging machine according to claim 1, characterized in that: An adjustment device (4) is provided on the surface of the exhaust pipe (39). The adjustment device (4) includes a main sleeve (41), which is fixedly connected to the surface of the exhaust pipe (39) and fixedly connected to one side of the main frame (1).
4. The packer according to claim 3, wherein: The main sleeve (41) is rotatably connected to a rotating block (42), and the opening on the surface of the rotating block (42) is aligned with the exhaust pipe (39).
5. A pack positioning structure for a cake tea packaging machine according to claim 4, characterised in that: The rotating block (42) has a rotating shaft fixedly connected to a rotating disk (44), which is located on one side of the main sleeve (41).
6. A pack positioning structure for a cake tea packaging machine according to claim 5, wherein: The rotating disk (44) is internally threaded with a positioning rod (43), which is located on one side of the rotating block (42).
7. A pack positioning structure for a cake tea packaging machine according to claim 6, wherein: The main sleeve (41) has a positioning hole (45) on one side, and the positioning rod (43) is inserted into the positioning hole (45).