An automatic packaging apparatus for pre-packaged food products

Abstract

This utility model provides an automatic packaging device for pre-packaged food, including a packaging table. A conveyor is fixedly installed above the packaging table. A material rack is installed at the end of the packaging table near the feeding end of the conveyor. A material discharge bin is fixedly installed on the top of the material rack. A discharge nozzle located above the feeding end of the conveyor is installed at the bottom of the material discharge bin. A hydraulic rod is fixedly installed at the bottom of the packaging table. An adjusting frame is slidably fitted on the packaging table. An opening assembly located above the feeding end of the conveyor is arranged between the two longitudinal sides of the adjusting frame. A sealing assembly is arranged between the opening assembly and the packaging table. When the packaging bag is filled by the opening assembly, the sealing plates on both sides drive the heat sealing strip away from the discharge nozzle, keeping the discharge path of the discharge nozzle at a safe distance from the heat sealing plate, reducing the direct spillage of material onto the surface of the heat sealing strip, and ensuring the sealing performance and packaging quality.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and more specifically, to an automatic packaging device for pre-packaged food. Background Technology

[0002] Prepackaged food refers to food that is pre-packaged in fixed quantities or prepared in packaging materials and containers. Food packaging is an important part of the food production process. Its main purpose is to protect food, facilitate transportation and storage, and at the same time enhance the value and appeal of food.

[0003] Utility model patent application number CN202420872938.1 discloses a fully automatic food packaging machine, including a conveyor and an automatic filling machine located above it. An opening mechanism and a sealing mechanism are arranged sequentially from top to bottom between the conveyor and the automatic filling machine. The opening mechanism includes two U-shaped plates that are driven to move relative to each other along the Y-axis. The two U-shaped plates are distributed facing each other, and a first telescopic motor is installed on both sides of the inner wall. A clamping plate is fixedly installed at the end of the first telescopic motor. The sealing mechanism includes a first heat-sealing plate and a second heat-sealing plate that are driven to move relative to each other along the X-axis. In this utility model, after the two clamping plates are driven close together by the first telescopic motor, they can clamp the side of the packaging bag. Then, the two U-shaped plates are driven close together along the Y-axis by the second telescopic motor, which can open the packaging bag. Therefore, the packaging bag does not need to be opened manually and can limit the packaging bag.

[0004] The aforementioned patent places the sealing mechanism between the lower part of the automatic filling machine's feed port and the upper part of the opening mechanism, which can easily cause operational problems in the packaging process. In the existing filling device, during the feeding process, the material pours out from the feed port. When it passes through the heat sealing plate of the sealing mechanism, due to the impact force, inertia, and instability of the material falling, some material will inevitably splash and spill onto the surface of the heat sealing plate, thereby affecting the sealing performance and quality. Furthermore, it is impossible to adjust the height of the opening component and the sealing component to accommodate packaging bags of different heights.

[0005] Therefore, we have made improvements to this and proposed an automatic packaging device for pre-packaged food. Utility Model Content

[0006] The purpose of this utility model is to address the issue that in existing filling devices, during the feeding process, when material is poured out from the feeding port and passes through the heat sealing plate of the sealing mechanism, due to the impact force, inertia, and instability of the material falling, some material will inevitably splash and spill onto the surface of the heat sealing plate, thereby affecting the sealing performance and quality of the seal. Furthermore, it is impossible to adjust the height of the opening component and the sealing component to accommodate packaging bags of different heights.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] An automatic packaging device for pre-packaged food includes a packaging table, a conveyor fixedly installed above the packaging table, a material rack installed at the end of the packaging table near the feeding end of the conveyor, a discharge bin fixedly installed on the top of the material rack, a discharge nozzle located above the feeding end of the conveyor installed at the bottom of the discharge bin, a hydraulic rod fixedly installed at the bottom of the packaging table, an adjusting frame slidably fitted on the packaging table, the adjusting frame being U-shaped with the opening facing upwards, the telescopic end of the hydraulic rod being fixedly installed with the transverse side of the bottom of the adjusting frame, an opening assembly located above the feeding end of the conveyor being provided between the two longitudinal sides of the adjusting frame, and a sealing assembly being provided between the opening assembly and the packaging table.

[0009] Furthermore, the opening assembly includes a lifting frame that slides on both longitudinal sides of the adjusting frame, and a first electric telescopic rod is fixedly installed on the opposite sides of the two lifting frames. The telescopic end of the first electric telescopic rod is equipped with a U-shaped frame, and the openings of the two U-shaped frames are in opposite directions.

[0010] Furthermore, the U-shaped frame is equipped with two sliding rods on the side near the lifting frame, and the sliding rods are in sliding cooperation with the lifting frame.

[0011] Furthermore, a second electric telescopic rod is fixedly installed on the inner walls of the two U-shaped frames. The telescopic end of the second electric telescopic rod is equipped with a clamping plate, and a through displacement groove is opened on both sides above the two lifting frames.

[0012] Furthermore, the sealing assembly includes sealing plates that slide and fit on both sides above the two lifting frames. Heat sealing strips are fixedly installed on the opposite sides of the two sealing plates, and displacement blocks that slide and fit with displacement grooves are installed on both sides of the bottom of the two sealing plates.

[0013] Furthermore, four first connecting blocks are installed above the packaging platform, and each of the four displacement blocks has a lifting rod slidably fitted inside it, with a second connecting block installed at the bottom of the lifting rod.

[0014] Furthermore, a connecting frame is provided between the first connecting block and the second connecting block. The upper end of the connecting frame is rotatably engaged with the second connecting block, and the lower end of the connecting frame is rotatably engaged with the first connecting block. A limiting groove is provided on the inner wall of the displacement groove, and a limiting block that slides with the limiting groove is installed on one side of the displacement block located in the displacement groove.

[0015] Furthermore, a first positioning pin is provided on the outer side of the sliding joint between the two lifting frames and the longitudinal edge of the adjusting frame, and multiple first positioning grooves that cooperate with the first positioning pins are opened on the outer side of the longitudinal edge on both sides of the adjusting frame. A second positioning pin is provided on the outer side of the sliding joint between the four displacement blocks and the lifting rod, and multiple second positioning grooves that cooperate with the second positioning pins are opened on the outer side of the lifting rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model uses the U-shaped frames on both sides of the opening assembly to control the first electric telescopic rod through the same controller, ensuring that the opening action is synchronous and symmetrical. The clamping plate is clamped synchronously through the second electric telescopic rod, which improves the stability of the bag opening. When the packaging bag is filled through the opening assembly, the sealing plates on both sides drive the heat sealing strip away from the feeding nozzle, so that the feeding path of the feeding nozzle and the heat sealing plate are kept at a safe distance, reducing the direct spillage of materials onto the surface of the heat sealing strip, and ensuring the sealing performance and packaging quality.

[0018] 2. This utility model, through its multi-level positioning design of the first positioning pin and the first positioning groove, and the second positioning pin and the second positioning groove, can quickly lock the device position according to the packaging bag specifications, reduce shaking and deviation during operation, and ensure the stability and consistency of the packaging process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic pre-packaged food packaging device according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the opening component of this utility model;

[0021] Figure 3 This utility model Figure 2 -Structural diagram at point A;

[0022] Figure 4 This is a schematic diagram of the sealing assembly of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection between the opening component and the sealing component of this utility model;

[0024] Figure 6 This utility model Figure 5 -Structural diagram at point B.

[0025] The image shows:

[0026] 1. Packaging table; 2. Conveyor; 3. Material rack; 4. Feeding bin; 5. Feeding nozzle; 6. Hydraulic rod; 7. Adjusting frame; 8. Opening assembly; 801. Lifting frame; 802. First electric telescopic rod; 803. U-shaped frame; 804. Slide rod; 805. Second electric telescopic rod; 806. Clamping plate; 807. Displacement groove; 9. Sealing assembly; 901. Sealing plate; 902. Heat sealing strip; 903. Displacement block; 904. First connecting block; 905. Lifting rod; 906. Connecting frame; 907. Second connecting block; 10. First positioning pin; 11. First positioning groove; 12. Second positioning pin; 13. Second positioning groove; 14. Limiting groove; 15. Limiting block. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] Please refer to Figure 1-6 An automatic packaging device for pre-packaged food includes a packaging platform 1, a conveyor 2 fixedly installed above the packaging platform 1, a material rack 3 installed above the packaging platform 1 near the feeding end of the conveyor 2, a feeding bin 4 fixedly installed on the top of the material rack 3, a discharge nozzle 5 located above the feeding end of the conveyor 2 installed at the bottom of the feeding bin 4, a hydraulic rod 6 fixedly installed at the bottom of the packaging platform 1, an adjusting frame 7 slidably fitted on the packaging platform 1, the adjusting frame 7 being U-shaped with the opening facing upwards, the telescopic end of the hydraulic rod 6 being fixedly installed with the transverse side of the bottom of the adjusting frame 7, an opening assembly 8 located above the feeding end of the conveyor 2 being provided between the two longitudinal sides of the adjusting frame 7, and a sealing assembly 9 being provided between the opening assembly 8 and the packaging platform 1.

[0029] Please refer to Figure 2 The opening assembly 8 includes lifting frames 801 slidably fitted on the longitudinal sides of the adjusting frame 7. First electric telescopic rods 802 are fixedly installed on opposite sides of the two lifting frames 801. The telescopic ends of the first electric telescopic rods 802 are equipped with U-shaped frames 803. The openings of the U-shaped frames 803 on both sides face opposite directions. Two sliding rods 804 are installed on the side of the U-shaped frame 803 closest to the lifting frame 801, and the sliding rods 804 are slidably fitted with the lifting frame 801. The two first electric telescopic rods 802 are controlled by the same controller, and their telescopic strokes are uniform and equidistant. Second electric telescopic rods 805 are fixedly installed on the opposite inner walls of the U-shaped frames 803 on both sides. The telescopic ends of the second electric telescopic rods 805 are equipped with clamping plates 806. Through displacement grooves 807 are opened on both sides above the two lifting frames 801. The four second electric telescopic rods 805 are controlled by the same controller, and their telescopic strokes are uniform and equidistant.

[0030] Specifically, the first electric telescopic rod 802 pushes the U-shaped frame 803 to move laterally, and the slide rod 804 slides and guides on the lifting frame 801, so that the two U-shaped frames 803 move relative to each other or away from each other, realizing the opening action of the packaging bag. The second electric telescopic rod 805 drives the clamping plate 806 to extend and retract, which works with the U-shaped frame 803 to complete the stable clamping of the bag opening, ensuring that the bag opening is open during filling. The two U-shaped frames 803 in the opening assembly 8 are controlled by the same controller to control the first electric telescopic rod 802, ensuring that the opening action is synchronous and symmetrical. The clamping plate 806 is clamped synchronously by the second electric telescopic rod 805, improving the stability of the bag opening.

[0031] Please refer to Figure 4 and Figure 5 The sealing assembly 9 includes sealing plates 901 that are slidably fitted on both sides above the two lifting frames 801. Heat sealing strips 902 are fixedly installed on opposite sides of the two sealing plates 901. Displacement blocks 903 that slidably fit with displacement grooves 807 are installed on both sides of the bottom of the two sealing plates 901. First connecting blocks 904 are installed in four places above the packaging platform 1. Lifting rods 905 located at the bottom of each of the four displacement blocks 903 are slidably fitted inside them. Second connecting blocks 907 are installed at the bottom of the lifting rods 905. A connecting frame 906 is provided between the first connecting blocks 904 and the second connecting blocks 907. The upper end of the connecting frame 906 is rotatably fitted with the second connecting block 907, and the lower end of the connecting frame 906 is rotatably fitted with the first connecting block 904. A limiting groove 14 is opened in the inner wall of the displacement groove 807. A limiting block 15 that slidably fits with the limiting groove 14 is installed on one side of the displacement block 903 located in the displacement groove 807.

[0032] Specifically, the sealing plate 901 is slidably connected to the displacement groove 807 of the lifting frame 801 via the displacement block 903, and the limiting block 15 cooperates with the limiting groove 14 to prevent displacement. When the height of the lifting frame 801 is adjusted, the displacement block 903 slides along the displacement groove 807, driving the sealing plate 901 to rise and fall synchronously. The two ends of the connecting frame 906 are rotatably connected to the first connecting block 904 and the second connecting block 907 respectively, forming a four-bar linkage mechanism. When the lifting rod 905 slides up and down in the displacement block 903, the connecting frame 906 adjusts the horizontal position of the sealing plate 901 by rotation, ensuring that the heat sealing strip 902 is accurately aligned with the bag opening. When the packaging bag is filled through the opening assembly 8, the sealing plates 901 on both sides drive the heat sealing strip 902 away from the feeding nozzle 5, keeping the feeding path of the feeding nozzle 5 at a safe distance from the heat sealing plate, reducing the direct spillage of material onto the surface of the heat sealing strip, and ensuring the sealing performance and packaging quality.

[0033] Please refer to Figure 3 and Figure 6The two lifting frames 801 are provided with first positioning pins 10 on the outer side of the sliding joint between the two lifting frames 801 and the longitudinal side of the adjusting frame 7. The outer side of the longitudinal side of both sides of the adjusting frame 7 is provided with multiple first positioning grooves 11 that cooperate with the first positioning pins 10. The outer side of the sliding joint between the four displacement blocks 903 and the lifting rod 905 is provided with second positioning pins 12. The outer side of the lifting rod 905 is provided with multiple second positioning grooves 13 that cooperate with the second positioning pins 12. The lifting frame 801 slides on the longitudinal side of the adjusting frame 7. The height is fixed by the cooperation of the first positioning pins 10 and the first positioning grooves 11, so as to realize the overall height adjustment of the opening assembly 8. The sealing assembly 9 can finely adjust the height of the sealing plate 901 within a certain range by the cooperation of the lifting rod 905 and the second positioning pins 12.

[0034] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. An automatic packaging device for pre-packaged food, comprising a packaging table (1), characterized in that: A conveyor (2) is fixedly installed above the packaging platform (1). A material rack (3) is installed at the end of the packaging platform (1) near the material feeding end of the conveyor (2). A material feeding bin (4) is fixedly installed on the top of the material rack (3). A discharge nozzle (5) located above the material feeding end of the conveyor (2) is installed at the bottom of the material feeding bin (4). A hydraulic rod (6) is fixedly installed at the bottom of the packaging platform (1). An adjusting frame (7) is slidably fitted on the packaging platform (1). The adjusting frame (7) is U-shaped with the opening facing upward. The telescopic end of the hydraulic rod (6) is fixedly installed with the transverse side of the bottom of the adjusting frame (7). An opening assembly (8) located above the material feeding end of the conveyor (2) is provided between the two longitudinal sides of the adjusting frame (7). A sealing assembly (9) is provided between the opening assembly (8) and the packaging platform (1).

2. The automatic packaging device for pre-packaged food according to claim 1, characterized in that: The opening assembly (8) includes a lifting frame (801) that slides on the longitudinal sides of the adjusting frame (7). A first electric telescopic rod (802) is fixedly installed on the opposite sides of the two lifting frames (801). The telescopic end of the first electric telescopic rod (802) is equipped with a U-shaped frame (803), and the openings of the U-shaped frames (803) on both sides are in opposite directions.

3. The automatic packaging device for pre-packaged food according to claim 2, characterized in that: Two sliding rods (804) are installed on the side of the U-shaped frame (803) near the lifting frame (801), and the sliding rods (804) slide in cooperation with the lifting frame (801).

4. The automatic packaging device for pre-packaged food according to claim 3, characterized in that: The inner walls of the two U-shaped frames (803) are fixedly installed with second electric telescopic rods (805), and the telescopic ends of the second electric telescopic rods (805) are equipped with clamping plates (806). The two lifting frames (801) are provided with through displacement grooves (807) on both sides above.

5. The automatic packaging device for pre-packaged food according to claim 4, characterized in that: The sealing assembly (9) includes sealing plates (901) that are slidably fitted on both sides above the two lifting frames (801). Heat sealing strips (902) are fixedly installed on the opposite sides of the two sealing plates (901). Displacement blocks (903) that are slidably fitted with displacement grooves (807) are installed on both sides of the bottom of the two sealing plates (901).

6. The automatic packaging device for pre-packaged food according to claim 5, characterized in that: The packaging platform (1) is equipped with four first connecting blocks (904) above each of the four displacement blocks (903), and each of the four displacement blocks (903) is slidably fitted with a lifting rod (905) located at its bottom. The bottom end of the lifting rod (905) is equipped with a second connecting block (907).

7. The automatic packaging device for pre-packaged food according to claim 6, characterized in that: A connecting frame (906) is provided between the first connecting block (904) and the second connecting block (907). The upper end of the connecting frame (906) is rotatably engaged with the second connecting block (907), and the lower end of the connecting frame (906) is rotatably engaged with the first connecting block (904). A limiting groove (14) is provided on the inner wall of the displacement groove (807). A limiting block (15) that slides with the limiting groove (14) is installed on one side of the displacement block (903) located in the displacement groove (807).

8. The automatic packaging device for pre-packaged food according to claim 7, characterized in that: The two lifting frames (801) and the adjustment frame (7) are provided with a first positioning pin (10) on the outer side of the longitudinal edge sliding joint. The adjustment frame (7) is provided with a plurality of first positioning grooves (11) that cooperate with the first positioning pin (10) on the outer side of the longitudinal edge on both sides. The four displacement blocks (903) and the lifting rod (905) are provided with a second positioning pin (12) on the outer side of the sliding joint. The lifting rod (905) is provided with a plurality of second positioning grooves (13) that cooperate with the second positioning pin (12) on the outer side.

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