Automatic weighing and marking device for food packaging
By designing an automatic weighing and marking device for food packaging, the problems of low production efficiency and inconsistent marking positions were solved. It realizes automated weighing and marking, improves production efficiency and marking accuracy, and is suitable for large-scale food production.
Patent Information
- Application Number
- CN202520630046.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing automatic weighing and marking devices for food packaging operate intermittently, affecting the production line's rhythm, resulting in low production efficiency, and are prone to damaging packaging materials. Furthermore, inconsistent marking positions make it difficult to guarantee product identification, traceability, and management.
An automatic weighing and marking device for food packaging was designed, comprising a frame assembly, a conveyor and marking assembly, a discharge assembly, a weighing assembly, and a clamping assembly. Through conveyor belt transportation, weigher detection, discharge assembly control, and clamping assembly fixation, automated weighing and marking are achieved, ensuring accurate marking positions.
It improves production efficiency, ensures that the labeling information is printed accurately on the packaging, avoids damage to packaging materials, and is suitable for stable operation in large-scale food production.
Smart Images

Figure CN223791213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic weighing and marking technology, and more specifically to an automatic weighing and marking device for food packaging. Background Technology
[0002] Automatic weighing and marking devices for food packaging are mainly used for weight detection and label printing on food packaging. Their working principle is as follows: the materials to be packaged are weighed and packed, and then labels are printed on their surface.
[0003] When the equipment operates intermittently, it disrupts the overall production line's rhythm, reduces overall production efficiency, and when the output weight is unstable and exceeds the packaging material's tolerance, it may cause excessive stretching or compression, leading to bag breakage or other damage. Even with manual marking, it's difficult to ensure consistent label placement on every package. This creates inconvenience for product identification, traceability, and management.
[0004] Therefore, in order to solve the above problems, this application provides an automatic weighing and marking device for food packaging. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic weighing and marking device for food packaging to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: an automatic weighing and marking device for food packaging, comprising a frame assembly, a conveying and marking assembly, a discharging assembly, a weighing assembly, and a clamping assembly, wherein the conveying and marking assembly is installed on the inner wall of the frame assembly, the discharging assembly is symmetrically distributed and installed above the frame assembly, the weighing assembly is installed above the frame assembly, and the clamping assembly is symmetrically distributed and installed on both sides above the frame assembly.
[0007] Preferably, the frame assembly includes a main frame plate, side plates, auxiliary seats, and a controller, wherein the side plates are symmetrically distributed and fixedly installed on the rear wall of the main frame plate, the auxiliary seats are symmetrically distributed and fixedly installed on the bottom of the side plates, and the controller is fixedly installed on the side wall of the main frame plate.
[0008] Preferably, the conveying and marking assembly includes a first drive motor, a transmission shaft, rollers, a conveyor belt, a first electric push rod, and a stamp. The first drive motor is fixedly installed on the side wall of the main frame plate. The output end of the first drive motor movably passes through the main frame plate and is fixedly connected to one end of the symmetrically distributed transmission shaft. The other end of the transmission shaft is movably sleeved with the inner wall of the side plate. The transmission shaft is fixedly installed through the rollers. The outer wall of the rollers meshes with the inner wall of the conveyor belt. The first electric push rod is fixedly installed at the bottom of the main frame plate. A stamp is fixedly installed on the output end of the first electric push rod. The conveying and marking assembly facilitates the workers to transport and mark the bags.
[0009] Preferably, the discharge assembly includes an L-shaped fixing rod, a storage bin, a first gear, a first connecting rod, a second connecting rod, a second gear, a third connecting rod, a second drive motor, and a third gear. One end of the L-shaped fixing rod is fixedly installed above the main frame plate, and the other end is fixedly installed on the outer wall of the storage bin. The first gear and the first connecting rod are symmetrically distributed. One end of the first connecting rod is fixedly connected to the outer wall of the storage bin, and the other end is movably connected to the first gear. One end of the second connecting rod is fixedly connected to the outer wall of the storage bin, and the other end is movably connected to the second gear. The second gear meshes with a first gear on one side. One end of the third connecting rod is fixedly connected to the outer wall of the storage bin, and the other end is fixedly connected to the top of the second drive motor. The output end of the second drive motor is fixedly connected to the third gear, and the third gear meshes with a first gear and a second gear on the other side. This discharge assembly facilitates timely closure of the storage bin's outlet when the weight above the weighing assembly below reaches the standard.
[0010] Preferably, the weighing assembly includes a base plate, a U-shaped rod, a sleeve, a temporary storage chamber, a weighing device, a placement plate, and a second electric actuator. The base plate is fixedly installed above the main frame plate. Both ends of the U-shaped rod are fixedly installed above the base plate. The sleeve is movably fitted onto the outer wall of the U-shaped rod, and the outer wall of the sleeve is fixedly connected to the bottom of one end of the temporary storage chamber. The weighing device is fixedly installed inside the temporary storage chamber. The placement plate is fixedly installed above the weighing device. The second electric actuator is fixedly installed at the bottom of the base plate, and its output end movably penetrates the base plate and contacts the bottom of the temporary storage chamber. This weighing assembly facilitates weighing operations in conjunction with the device.
[0011] Preferably, the clamping assembly includes a horizontal plate, an L-shaped connecting rod, and a U-shaped clamp, wherein the horizontal plate is fixedly installed above the main frame plate, one end of the L-shaped connecting rod is fixedly connected to the bottom of the horizontal plate, and the other end of the L-shaped connecting rod is fixedly connected to the side wall of the U-shaped clamp.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] 1. This utility model, by incorporating a weighing component and a discharging component, facilitates the elimination of manual intervention or additional waiting time, greatly increasing the processing capacity per unit time. It is suitable for large-scale food production and packaging needs, and can operate stably according to preset programs and parameters, enhancing the overall automatic coordination capability of the device.
[0014] 2. This utility model, by incorporating a conveying and marking component, facilitates stable operation and precise position control, ensuring that the marking information is accurately printed at the designated position on the packaging. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the overall structure and some cross-sectional views of the present invention.
[0017] Figure 3 For the present utility model Figure 2 Schematic diagram of structure A in the middle.
[0018] Figure 4 For the present utility model Figure 2 Schematic diagram of structure B in the middle.
[0019] The attached figures are labeled as follows: 1. Frame assembly; 101. Main frame plate; 102. Side plate; 103. Auxiliary seat; 104. Controller; 2. Conveying and marking assembly; 201. First drive motor; 202. Drive shaft; 203. Roller; 204. Conveyor belt; 205. First electric push rod; 206. Stamp; 3. Discharge assembly; 301. L-shaped fixing rod; 302. Storage bin; 303. First gear; 304. First... 305. Connecting rod; 306. Second connecting rod; 307. Third connecting rod; 308. Second drive motor; 309. Third gear; 4. Weighing assembly; 401. Base plate; 402. U-shaped rod; 403. Sleeve; 404. Temporary storage chamber; 405. Weighing device; 406. Placement plate; 407. Second electric push rod; 5. Clamping assembly; 501. Horizontal plate; 502. L-shaped connecting rod; 503. U-shaped clamp. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The automatic weighing and marking involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Reference Figure 1-4 This utility model provides an automatic weighing and marking device for food packaging, including a frame assembly 1, a conveying and marking assembly 2, a discharging assembly 3, a weighing assembly 4, and a clamping assembly 5. The conveying and marking assembly 2 is installed on the inner wall of the frame assembly 1, the discharging assembly 3 is symmetrically distributed and installed above the frame assembly 1, the weighing assembly 4 is installed above the frame assembly 1, and the clamping assembly 5 is symmetrically distributed and installed on both sides above the frame assembly 1.
[0022] The frame assembly 1 includes a main frame plate 101, side plates 102, auxiliary seats 103 and a controller 104. The side plates 102 are symmetrically distributed and fixedly installed on the rear wall of the main frame plate 101, the auxiliary seats 103 are symmetrically distributed and fixedly installed on the bottom of the side plates 102, and the controller 104 is fixedly installed on the side wall of the main frame plate 101.
[0023] The conveying and marking assembly 2 includes a first drive motor 201, a drive shaft 202, a roller 203, a conveyor belt 204, a first electric push rod 205, and a stamp 206. The first drive motor 201 is fixedly installed on the side wall of the main frame plate 101. The output end of the first drive motor 201 movably passes through the main frame plate 101 and is fixedly connected to one end of the symmetrically distributed drive shaft 202. The other end of the drive shaft 202 is movably sleeved with the inner wall of the side plate 102. The drive shaft 202 is fixedly installed through the roller 203. The outer wall of the roller 203 meshes with the inner wall of the conveyor belt 204. The first electric push rod 205 is fixedly installed at the bottom of the main frame plate 101. The stamp 206 is fixedly installed on the output end of the first electric push rod 205. The conveying and marking assembly 2 facilitates the workers to transport and mark bags.
[0024] The discharge assembly 3 includes an L-shaped fixing rod 301, a storage bin 302, a first gear 303, a first connecting rod 304, a second connecting rod 305, a second gear 306, a third connecting rod 307, a second drive motor 308, and a third gear 309. One end of the L-shaped fixing rod 301 is fixedly installed above the main frame plate 101, and the other end is fixedly installed on the outer wall of the storage bin 302. The first gear 303 and the first connecting rod 304 are symmetrically distributed. One end of the first connecting rod 304 is fixedly connected to the outer wall of the storage bin 302, and the other end of the first connecting rod 304 is movably connected to the first gear 303. One end of the second connecting rod 305 is connected to the storage bin 302. The outer wall of the material hopper 302 is fixedly connected. The other end of the second connecting rod 305 is movably connected to the second gear 306. The second gear 306 meshes with the first gear 303 on one side. One end of the third connecting rod 307 is fixedly connected to the outer wall of the storage hopper 302. The other end of the third connecting rod 307 is fixedly connected to the top of the second drive motor 308. The output end of the second drive motor 308 is fixedly connected to the third gear 309. The third gear 309 meshes with the first gear 303 and the second gear 306 on the other side. A discharge component 3 is provided, which is beneficial to close the outlet of the storage hopper 302 in time when the weight above the weighing component 4 below reaches the standard.
[0025] The weighing assembly 4 includes a base plate 401, a U-shaped rod 402, a sleeve 403, a temporary storage chamber 404, a weighing device 405, a placement plate 406, and a second electric push rod 407. The base plate 401 is fixedly installed above the main frame plate 101. Both ends of the U-shaped rod 402 are fixedly installed above the base plate 401. The sleeve 403 is movably sleeved on the outer wall of the U-shaped rod 402, and the outer wall of the sleeve 403 is fixedly connected to the bottom of one end of the temporary storage chamber 404. The weighing device 405 is fixedly installed inside the temporary storage chamber 404. The placement plate 406 is fixedly installed above the weighing device 405. The second electric push rod 407 is fixedly installed at the bottom of the base plate 401. The output end of the second electric push rod 407 movably passes through the base plate 401 and contacts the bottom of the temporary storage chamber 404. The weighing assembly 4 is provided to facilitate weighing activities in conjunction with the device.
[0026] The clamping assembly 5 includes a horizontal plate 501, an L-shaped connecting rod 502, and a U-shaped clamp 503. The horizontal plate 501 is fixedly installed above the main frame plate 101. One end of the L-shaped connecting rod 502 is fixedly connected to the bottom of the horizontal plate 501, and the other end of the L-shaped connecting rod 502 is fixedly connected to the side wall of the U-shaped clamp 503.
[0027] The working principle of this utility model:
[0028] The device is placed horizontally above the ground. The operator places the food to be weighed and marked into the storage bin 302, and simultaneously hangs the packaging bag above the U-shaped clamp 503. A standard value is preset inside the weighing device 405. The device then begins operation; the food falls through the outlet at the bottom of the storage bin 302 onto the placement plate 406. When the weighing device 405 detects that the weight above the placement plate 406 is about to reach the preset standard value, it sends this signal to the controller 104. The controller 104 receives the signal and controls the second electric push rod 407 and the second drive motor 308 to start working. The output of the second drive motor 308 drives the third gear 309 to rotate. The rotation of the third gear 309 drives the first gear 303 and the second gear 306 on the meshing side to perform a selection action. The rotation of the second gear 306 drives the first gear 303 on the other side to rotate, thereby sealing the outlet of the storage bin 302. The output end of the second electric push rod 407 extends and retracts, pushing the temporary storage chamber 404 upward, causing the temporary storage chamber 404 to move in a semi-circular motion around the sleeve 403. This causes the food above the placement plate 406 to fall into the bag that has been placed above the U-shaped clamp 503. After the worker seals the bag, it is placed above the conveyor belt 204. At this time, the output end of the first drive motor 201 drives the transmission shaft 202 and the roller 203 to rotate. The rotation of the roller 203 drives the conveyor belt 204 to move. When it reaches below the first electric push rod 205, the extension and retraction of the first electric push rod 205 drives the stamp 206 to mark, thereby completing the operation.
[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automatic weighing and marking device for food packaging, comprising a frame assembly (1), a conveying and marking assembly (2), a discharging assembly (3), a weighing assembly (4), and a clamping assembly (5), characterized in that: The conveying and marking assembly (2) is installed on the inner wall of the frame assembly (1), the discharge assembly (3) is symmetrically distributed and installed above the frame assembly (1), the weighing assembly (4) is installed above the frame assembly (1), and the clamping assembly (5) is symmetrically distributed and installed on both sides above the frame assembly (1); the weighing assembly (4) includes a base plate (401), a U-shaped rod (402), a sleeve (403), a temporary storage chamber (404), a weighing device (405), a placement plate (406), and a second electric push rod (407), wherein the base plate (401) is fixedly installed above the main frame plate (101), the... The two ends of the U-shaped rod (402) are fixedly installed above the base plate (401). The sleeve (403) is movably sleeved on the outer wall of the U-shaped rod (402). The outer wall of the sleeve (403) is fixedly connected to the bottom of one end of the temporary storage chamber (404). The weighing device (405) is fixedly installed inside the temporary storage chamber (404). The placement plate (406) is fixedly installed above the weighing device (405). The second electric push rod (407) is fixedly installed at the bottom of the base plate (401). The output end of the second electric push rod (407) movably penetrates the base plate (401) and contacts the bottom of the temporary storage chamber (404).
2. The automatic weighing and marking device for food packaging according to claim 1, characterized in that: The frame assembly (1) includes a main frame plate (101), side plates (102), auxiliary seats (103), and a controller (104). The side plates (102) are symmetrically distributed and fixedly installed on the rear wall of the main frame plate (101), the auxiliary seats (103) are symmetrically distributed and fixedly installed on the bottom of the side plates (102), and the controller (104) is fixedly installed on the side wall of the main frame plate (101).
3. The automatic weighing and marking device for food packaging according to claim 1, characterized in that: The conveying and marking assembly (2) includes a first drive motor (201), a transmission shaft (202), a roller (203), a conveyor belt (204), a first electric push rod (205), and a stamp (206). The first drive motor (201) is fixedly installed on the side wall of the main frame plate (101). The output end of the first drive motor (201) movably passes through the main frame plate (101) and is fixedly connected to one end of the symmetrically distributed transmission shaft (202). The other end of the transmission shaft (202) is movably sleeved with the inner wall of the side plate (102). The transmission shaft (202) is fixedly installed through the roller (203). The outer wall of the roller (203) meshes with the inner wall of the conveyor belt (204). The first electric push rod (205) is fixedly installed at the bottom of the main frame plate (101). A stamp (206) is fixedly installed on the output end of the first electric push rod (205).
4. The automatic weighing and marking device for food packaging according to claim 1, characterized in that: The discharge assembly (3) includes an L-shaped fixing rod (301) and a storage bin (302), wherein one end of the L-shaped fixing rod (301) is fixedly installed above the main frame plate (101), and the other end of the L-shaped fixing rod (301) is fixedly installed on the outer wall of the storage bin (302).
5. The automatic weighing and marking device for food packaging according to claim 1, characterized in that: The discharge assembly (3) includes a first gear (303), a first connecting rod (304), a second connecting rod (305), a second gear (306), a third connecting rod (307), a second drive motor (308), and a third gear (309). The first gear (303) and the first connecting rod (304) are symmetrically distributed. One end of the first connecting rod (304) is fixedly connected to the outer wall of the storage bin (302), and the other end of the first connecting rod (304) is movably connected to the first gear (303). One end of the second connecting rod (305) is fixedly connected to the outer wall of the storage bin (302). The second connecting rod (305) is fixedly connected to the second gear (306) at one end, and the second gear (306) meshes with the first gear (303) on one side. One end of the third connecting rod (307) is fixedly connected to the outer wall of the storage bucket (302), and the other end of the third connecting rod (307) is fixedly connected to the top of the second drive motor (308). The output end of the second drive motor (308) is fixedly connected to the third gear (309), and the third gear (309) meshes with the first gear (303) and the second gear (306) on the other side.
6. The automatic weighing and marking device for food packaging according to claim 1, characterized in that: The clamping assembly (5) includes a horizontal plate (501), an L-shaped connecting rod (502), and a U-shaped clamp (503). The horizontal plate (501) is fixedly installed above the main frame plate (101). One end of the L-shaped connecting rod (502) is fixedly connected to the bottom of the horizontal plate (501), and the other end of the L-shaped connecting rod (502) is fixedly connected to the side wall of the U-shaped clamp (503).