Automatic cake packaging and boxing machine
By using an adjustable traction bracket and an adaptive clamping film roller frame, the problems of mismatched film conveying tension and roll misalignment are solved, ensuring the sealing quality and operational efficiency of the pastry packaging sealing machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU BEIKEMAN FOOD TECHNOLOGY CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
AI Technical Summary
The traction mechanism of the existing automatic packaging and sealing machine for pastries cannot be adjusted in position, resulting in mismatch of film conveying tension, which easily leads to breakage or wrinkles; the film roller frame has a simple structure for fixing the film roll, which makes the film easy to deviate and shake during the conveying process, affecting the sealing effect.
The system employs an adjustable traction bracket and an adaptive clamping film roller frame. The position of the traction roller is adjusted by structures such as T-shaped clamps, positioning slots, connecting slides, and clamping springs to adapt to the film conveying tension. The film roll is stably fixed by structures such as connecting studs, threaded holes, triangular baffles, and sliding rods to prevent offset and shaking.
It achieves flatness and stability during the film conveying process, ensures sealing quality, and improves equipment operating efficiency and sealing effect.
Smart Images

Figure CN224529150U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food packaging machinery technology, and in particular to an automatic packaging and sealing machine for pastries. Background Technology
[0002] Pastries are a type of food made primarily from flour, sugar, oil, eggs, milk, fillings, and other ingredients through processes such as mixing, shaping, baking, and cooling. They encompass multiple categories including cakes, biscuits, shortbreads, and mooncakes. They are characterized by their rich flavor, relatively short shelf life, and high requirements for the airtightness and hygiene of packaging. In the pastry production process, packaging is a crucial link. It is necessary not only to ensure that pastries are not contaminated or damaged during transportation and storage, but also to enhance the product's appearance through neat packaging to meet market sales demands. Automatic packaging and sealing machines are automated equipment specifically designed to complete the sealing process of pastry packaging boxes. They are mainly used for sealing semi-finished packaging boxes that have already been filled into boxes. They can replace traditional manual sealing methods such as pressing and pasting, and achieve continuous and standardized box sealing operations, significantly improving sealing efficiency, reducing labor costs, and avoiding hygiene hazards caused by manual contact with the inside of the packaging box, thus ensuring stable and consistent sealing quality.
[0003] The existing automatic packaging and sealing machine for pastries has the following shortcomings: First, the position of the traction mechanism is fixed, making it impossible to adjust the position of the traction rollers according to the film conveying requirements to adapt to the conveying of films with different tensions. When the film conveying tension is too high, the film is prone to stretching and breaking, while when the tension is too low, the film will wrinkle, affecting the flatness of the film when the box is sealed. Second, the film roller frame has a simple fixing structure for the film roll, which only uses a simple baffle to limit the position. It cannot stably fix film rolls with different inner diameters. During the film winding and unwinding process, the film roll is prone to deflection and shaking, resulting in film conveying misalignment, which in turn affects the sealing effect of the box. Utility Model Content
[0004] This utility model proposes an automatic packaging and sealing machine for pastries, which achieves film conveying tension adaptation through an adjustable traction bracket and fixes the film roll with an adaptive and tightening film roller frame, thereby solving the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic pastry packaging and sealing machine, comprising a support platform, four support columns fixedly connected to the top rear side of the support platform, an electrical control box fixedly connected to the top of the four support columns, an upper mold fixedly installed above the enclosed area of the four support columns, a lower mold slidably connected to the top of the support platform, two traction brackets fixedly installed on the left and right sides of the four support columns, and a film roller frame fixedly installed on the top of the left and right sides of the four support columns.
[0006] The traction bracket includes two transverse T-shaped sliding plates. A rotating plate is rotatably connected to the side of the transverse T-shaped sliding plate away from the supporting column. A traction roller is fixedly connected to the opposite surfaces of the two rotating plates. A connecting groove that runs through the center of the rotating plate is formed. A tensioning spring is fixedly connected to the inner wall of the connecting groove. A connecting plate is fixedly connected to the end of the tensioning spring near the transverse T-shaped sliding plate. The outer surface of the connecting plate is slidably connected to the inner surface of the connecting groove. T-shaped locking plates are fixedly connected to both the front and rear sides of the connecting plate. Several positioning slots are formed on the outer surface of the transverse T-shaped sliding plate away from the supporting column. The end of the T-shaped locking plate near the transverse T-shaped sliding plate is slidably engaged with the inner surface of the positioning slot.
[0007] Preferably, both the upper and lower sides of the transverse T-shaped slide plate are threaded with fastening bolts, and the transverse T-shaped slide plate is fixedly installed on the side of the support column by the fastening bolts.
[0008] Preferably, the film roller frame includes a mounting plate, which is fixedly connected to the rear top of the support column. A drive motor is fixedly connected to the rear side of the mounting plate away from the support column. The front end of the drive motor extends through to the front side of the mounting plate and is fixedly connected to a rotating roller. A film roll is slidably sleeved on the outer surface of the rotating roller.
[0009] Preferably, the front end of the rotating roller is provided with a threaded insertion hole, the inner surface of the threaded insertion hole is threaded with a connecting stud, the front end of the connecting stud is fixedly connected with a triangular baffle, and the front side of the triangular baffle is fixedly connected with a rotating block.
[0010] Preferably, a sliding groove is provided in the middle of the rotating roller, and a sliding rod is slidably connected in the middle of the sliding groove. The front end of the sliding rod passes through the interior of the threaded insertion hole. A sliding pressure plate is fixedly connected to the rear side of the outer surface of the sliding rod, and a return spring is fixedly connected to the rear side of the sliding pressure plate. The rear end of the return spring is fixedly connected to the rear surface of the sliding groove.
[0011] Preferably, the outer surface of the sliding rod is movably connected to three push rods in a ring array. The end of the push rod away from the sliding rod is movably connected to a sliding top plate. The outer surface of the sliding top plate is slidably connected to the inner surface of the sliding groove, and the side away from the push rod extends through to the outer surface of the rotating roller.
[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: 1. In this utility model, the T-shaped card plate, positioning slot, connecting slide plate, clamping spring, rotating plate, and traction roller cooperate to slide the T-shaped card plate away from the positioning slot. At the same time, the connecting slide plate slides in the connecting slot and squeezes the clamping spring. At this time, the rotating plate is unrestricted and can rotate freely, thereby adjusting the position of the traction roller to adapt to the tension requirements of film conveying. After adjustment, the T-shaped card plate is released. Under the elastic thrust of the clamping spring, the connecting slide plate drives the T-shaped card plate to reset and lock into the positioning slot on the corresponding side, thus fixing the adjusted rotating plate. This structure can flexibly adjust the position of the traction roller according to the tension requirements of different film specifications, avoiding the problems of excessive film breakage or insufficient wrinkles caused by the fixed position of the traction roller in traditional equipment. It ensures the flatness of the film during conveying, provides a stable film supply for subsequent box sealing, and improves the sealing quality.
[0013] 2. In this utility model, through the mutual cooperation between the connecting stud, threaded insertion hole, triangular baffle, sliding rod, push rod, sliding top plate and return spring, when installing the film roll, the film roll is first placed on the outer surface of the rotating roller, and then the connecting stud is screwed into the threaded insertion hole by the rotating block. As the connecting stud is screwed in, its end will squeeze the sliding rod to move backward along the sliding groove. During the movement of the sliding rod, it pushes the three push rods to unfold, thereby pushing the sliding top plate to extend outward along the sliding groove and press against the inner wall of the film roll. At the same time, the triangular baffle fits against the front end of the film roll to achieve axial limitation. This structure can stably fix film rolls with different inner diameters through the self-adaptive pressing of the sliding top plate and the limitation of the triangular baffle, avoiding the problem of film rolls shifting and shaking during winding and unwinding caused by the baffle limitation of traditional equipment. It ensures the coaxiality of the film during conveying, reduces the misalignment of the film conveying, and the installation and disassembly process is simple and convenient, improving the operating efficiency of the equipment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the automatic pastry packaging and sealing machine of this utility model; Figure 2 This is an enlarged structural schematic diagram of the traction bracket of this utility model; Figure 3 This is a schematic diagram of the unfolded structure of the film roller frame of this utility model; Figure 4 This is a cross-sectional structural diagram of the rotating roller of this utility model.
[0015] Legend: 1. Support platform; 2. Support column; 3. Electrical control box; 4. Upper mold; 5. Lower mold; 6. Traction bracket; 61. Transverse T-shaped slide plate; 62. Fastening bolt; 63. Rotating plate; 64. Traction roller; 65. Positioning slot; 66. Connecting slide; 67. Top spring; 68. Connecting slide plate; 69. T-shaped clamping plate; 7. Film roller frame; 71. Mounting plate; 72. Drive motor; 73. Rotating roller; 731. Sliding rod; 732. Sliding pressure plate; 733. Return spring; 734. Push rod; 735. Sliding top plate; 74. Film roll; 75. Threaded insertion hole; 76. Connecting stud; 77. Triangular baffle; 78. Rotating block. Detailed Implementation
[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0018] Example 1: As Figure 1 and Figure 2As shown, this utility model provides a technical solution: it includes a support platform 1, four support columns 2 are fixedly connected to the top rear side of the support platform 1, an electrical control box 3 is fixedly connected to the top of the four support columns 2, an upper mold 4 is fixedly installed above the enclosed area of the four support columns 2, a lower mold 5 is slidably connected to the top of the support platform 1, two traction brackets 6 are fixedly installed on the left and right sides of the four support columns 2, and a film roller frame 7 is fixedly installed on the top of the left and right sides of the four support columns 2. The traction bracket 6 includes two transverse T-shaped slide plates 61, a rotating plate 63 is rotatably connected to the side of the transverse T-shaped slide plate 61 away from the support column 2, and a traction roller 64 is fixedly connected to the opposite face of the two rotating plates 63. The part has a connecting groove 66 that runs through the front and back. A tightening spring 67 is fixedly connected to the inner wall of the connecting groove 66. A connecting plate 68 is fixedly connected to one end of the tightening spring 67 near the transverse T-shaped slide plate 61. The outer surface of the connecting plate 68 is slidably connected to the inner surface of the connecting groove 66. T-shaped clamping plates 69 are fixedly connected to both the front and rear sides of the connecting plate 68. Several positioning slots 65 are opened on the outer surface of the transverse T-shaped slide plate 61 away from the supporting column 2. The end of the T-shaped clamping plate 69 near the transverse T-shaped slide plate 61 is slidably engaged with the inner surface of the positioning slot 65. Fastening bolts 62 are threadedly connected to both the upper and lower sides of the transverse T-shaped slide plate 61. The transverse T-shaped slide plate 61 is fixedly installed on the side of the supporting column 2 by the fastening bolts 62. The overall effect of Embodiment 1 is as follows: the transverse T-shaped slide plate 61 can be stably fixed to the side of the support column 2 by the fastening bolt 62, ensuring the overall structure of the traction bracket 6 is stable. When it is necessary to adjust the position of the traction roller 64 to match the film tension, the sliding T-shaped plate 69 is disengaged from the positioning slot 65, the connecting slide plate 68 slides in the connecting groove 66 and squeezes the top spring 67. After the rotating plate 63 is unrestricted, it can rotate around the connection point with the transverse T-shaped slide plate 61, thereby driving the traction roller 64 to adjust its angle and position. After adjusting to the appropriate position, the T-shaped plate 69 is released, the top spring 67 releases its elastic force to push the connecting slide plate 68 back to its original position, so that the T-shaped plate 69 is inserted into the corresponding positioning slot 65, thereby fixing the position of the traction roller 64. This structure can flexibly adjust the traction angle and force of the traction roller 64 on the film, ensuring that films of different specifications maintain appropriate tension during transportation, avoiding film breakage or wrinkles, and providing a flat film material for subsequent box sealing.
[0019] Example 2: Figure 3 and 4As shown, this utility model provides a technical solution: the film roller frame 7 includes a mounting plate 71, which is fixedly connected to the top rear side of the support column 2. A drive motor 72 is fixedly connected to the rear side of the mounting plate 71 away from the support column 2. The front end of the drive motor 72 extends through to the front side of the mounting plate 71 and is fixedly connected to a rotating roller 73. A film roll 74 is slidably sleeved on the outer surface of the rotating roller 73. A threaded insertion hole 75 is opened at the front end of the rotating roller 73. A connecting stud 76 is threadedly connected to the inner surface of the threaded insertion hole 75. A triangular baffle 77 is fixedly connected to the front end of the connecting stud 76. A rotating block 78 is fixedly connected to the front side of the triangular baffle 77. The middle part of the rotating roller 73 is opened... A sliding groove is provided, and a sliding rod 731 is slidably connected to the middle of the sliding groove. The front end of the sliding rod 731 extends into the interior of the threaded insertion hole 75. A sliding pressure plate 732 is fixedly connected to the rear side of the outer surface of the sliding rod 731. A return spring 733 is fixedly connected to the rear side of the sliding pressure plate 732. The rear end of the return spring 733 is fixedly connected to the rear surface of the sliding groove. Three push rods 734 are movably connected in a ring array on the outer surface of the sliding rod 731. A sliding top plate 735 is movably connected to the end of the push rod 734 away from the sliding rod 731. The outer surface of the sliding top plate 735 is slidably connected to the inner surface of the sliding groove, and the side away from the push rod 734 extends into the outer surface of the rotating roller 73. The overall effect of Embodiment 2 is as follows: the mounting plate 71 provides stable support for the drive motor 72 and the rotating roller 73. After the film roll 74 is fitted onto the outer surface of the rotating roller 73, the connecting stud 76 is rotated by the rotating block 78, so that the connecting stud 76 is screwed into the threaded insertion hole 75. The triangular baffle 77 moves with the connecting stud 76 and fits against the front end of the film roll 74, realizing the axial limitation of the film roll 74. At the same time, the end of the connecting stud 76 presses the sliding rod 731, so that the sliding rod 731 moves backward along the sliding groove. The sliding pressure plate 732 simultaneously presses the return spring 733. During the movement of the sliding rod 731, it pushes the three push rods. When 734 unfolds, the push rod 734 drives the sliding top plate 735 to extend outward along the sliding groove until the sliding top plate 735 presses against the inner wall of the film roll 74, thus achieving radial fixation of the film roll 74. This structure can be adapted to film rolls 74 with different inner diameters, ensuring that the film roll 74 does not deviate or shake when the drive motor 72 drives the rotating roller 73 to rotate, thus ensuring the stability of film conveying. When disassembling, the connecting stud 76 is rotated in the opposite direction, the return spring 733 pushes the sliding pressure plate 732 and the sliding rod 731 to reset, the push rod 734 is retracted, and the sliding top plate 735 retracts into the sliding groove, so that the film roll 74 can be removed. The operation is convenient and efficient.
[0020] The working principle of the entire equipment is as follows: Before use, according to the inner diameter of the film roll 74, the film roll 74 is fitted onto the rotating roller 73. The connecting stud 76 is rotated by the rotating block 78, so that the connecting stud 76 is screwed into the threaded insertion hole 75. The sliding rod 731 is squeezed to move backward, and the pushing rod 734 unfolds, causing the sliding top plate 735 to press against the inner wall of the film roll 74. At the same time, the triangular baffle 77 is attached to the front end of the film roll 74 to complete the fixation. Then, according to the film specifications and tension requirements, the sliding T-shaped clamp 69 is disengaged from the positioning groove 65. The rotating plate 63 is rotated to adjust the position of the traction roller 64. The T-shaped clamp 69 is released to lock into the positioning groove 65 to complete the fixation, ensuring that the film can be guided and conveyed to the lower mold by the traction roller 64 after being released from the film roll 74. Above the device 5, after the equipment is started, the electrical control box 3 controls the drive motor 72 to operate. The drive motor 72 drives the rotating roller 73 to rotate, and the film roll 74 rotates synchronously to release the film. The film is smoothly conveyed by the traction roller 64 to the top of the pastry packaging box that has been placed in the lower mold 5. At the same time, the lower mold 5 on the support platform 1 slides to the sealing position aligned with the upper mold 4. The electrical control box 3 controls the upper mold 4 to move downward. The upper mold 4 and the lower mold 5 cooperate to press and seal the film on the pastry packaging box. After sealing is completed, the upper mold 4 resets, and the lower mold 5 slides out the sealed packaging box. A new packaging box to be sealed is sent into the lower mold 5. The above process is repeated to achieve continuous sealing operation. All components work together to improve the sealing quality and working efficiency of the equipment.
[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An automatic pastry packaging and sealing machine, comprising a support platform (1), wherein four support columns (2) are fixedly connected to the top rear side of the support platform (1), and an electrical control box (3) is fixedly connected to the top of the four support columns (2), characterized in that: An upper mold (4) is fixedly installed above the enclosed area of the four support columns (2), and a lower mold (5) is slidably connected to the top of the support platform (1). Two traction brackets (6) are fixedly installed on the left and right sides of the four support columns (2), and a film roller frame (7) is fixedly installed on the top of the left and right sides of the four support columns (2). The traction bracket (6) includes two transverse T-shaped slide plates (61). A rotating plate (63) is rotatably connected to the side of the transverse T-shaped slide plate (61) away from the support column (2). A traction roller (64) is fixedly connected to the opposite face of the two rotating plates (63). A connecting groove (66) that runs through the front and back is opened in the middle of the rotating plate (63). A tightening spring (67) is fixedly connected to the inner wall of the connecting groove (66). A connecting slide plate (68) is fixedly connected to the end of the tightening spring (67) near the transverse T-shaped slide plate (61). The outer surface of the connecting slide plate (68) is slidably connected to the inner surface of the connecting groove (66). T-shaped clamping plates (69) are fixedly connected to both the front and rear sides of the connecting slide plate (68). Several positioning slots (65) are opened on the side of the outer surface of the transverse T-shaped slide plate (61) away from the support column (2). The end of the T-shaped clamping plate (69) near the transverse T-shaped slide plate (61) is slidably engaged with the inner surface of the positioning slot (65).
2. The automatic pastry packaging and sealing machine according to claim 1, characterized in that: The upper and lower sides of the transverse T-shaped slide plate (61) are threaded with fastening bolts (62), and the transverse T-shaped slide plate (61) is fixedly installed on the side of the support column (2) by fastening bolts (62).
3. The automatic pastry packaging and sealing machine according to claim 1, characterized in that: The film roller frame (7) includes a mounting plate (71), which is fixedly connected to the rear top of the support column (2). A drive motor (72) is fixedly connected to the rear side of the mounting plate (71) away from the support column (2). The front end of the drive motor (72) extends through to the front side of the mounting plate (71) and is fixedly connected to a rotating roller (73). A film roll (74) is slidably sleeved on the outer surface of the rotating roller (73).
4. The automatic pastry packaging and sealing machine according to claim 3, characterized in that: The front end of the rotating roller (73) is provided with a threaded insertion hole (75), and a connecting stud (76) is threadedly connected to the inner surface of the threaded insertion hole (75). A triangular baffle (77) is fixedly connected to the front end of the connecting stud (76), and a rotating block (78) is fixedly connected to the front side of the triangular baffle (77).
5. The automatic pastry packaging and sealing machine according to claim 4, characterized in that: The rotating roller (73) has a sliding groove in the middle, and a sliding rod (731) is slidably connected in the middle of the sliding groove. The front end of the sliding rod (731) extends into the interior of the threaded insertion hole (75). A sliding pressure plate (732) is fixedly connected to the rear side of the outer surface of the sliding rod (731). A return spring (733) is fixedly connected to the rear side of the sliding pressure plate (732). The rear end of the return spring (733) is fixedly connected to the rear surface of the sliding groove.
6. The automatic pastry packaging and sealing machine according to claim 5, characterized in that: The outer surface of the sliding rod (731) is movably connected to three push rods (734) in a ring array. The end of the push rod (734) away from the sliding rod (731) is movably connected to a sliding top plate (735). The outer surface of the sliding top plate (735) is slidably connected to the inner surface of the sliding groove, and the side away from the push rod (734) extends through to the outer surface of the rotating roller (73).