Bag opening equipment for food packaging line

Abstract

The utility model relates to the technical field of food packaging, in particular to a bag opening device for a food packaging line, which comprises a feeding platform for horizontally conveying paper bags, a bearing support is integrally erected on the feeding platform, and a driving motor and a double-end lead screw driven by the driving motor to rotate are arranged at the lower end of the feeding platform. The bearing support is provided with a jacking mechanism used for opening paper bags through a driving air cylinder. The first groove and the second groove are formed in the feeding platform from top to bottom, the double-end lead screw driven by the driving motor to rotate is arranged at the lower end of the feeding platform, and the telescopic rod extending into the second groove and the containing plate are supported through the moving nut moving horizontally. The lifting platform is used for arranging the limiting support and the jacking plate which are movably pulled by the automatic telescopic rod, and the jacking plate which can be horizontally opened and closed is used for opening the paper bag in the folded state.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging, in particular to a bag opening device for a food packaging line. Background Art

[0002] The automated food packaging line originally used manual food packaging, which was not only inefficient but also required a high level of worker proficiency and could not guarantee hygiene and safety.

[0003] With the development of technology, the process of existing automated food packaging lines is generally to take out bags and open them - put product materials into bags - seal bags. The pushing mechanism is responsible for pushing the materials on the feeding conveyor belt into the bags. After loading, the paper bags are output vertically to the discharging conveyor belt. However, the existing pushing mechanism lacks supporting limiting and opening implementation measures for paper bags in the storage and folding state. In particular, it is difficult to fully open the paper bags. Manual operation is still required, and the degree of automation is low, which cannot provide pre-processing for subsequent loading and packaging processes. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that it is difficult to open a folded paper bag, which affects food packaging, and proposes a bag opening device for a food packaging line.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bag opening device for a food packaging line comprises a feeding platform for horizontally conveying paper bags, a load-bearing bracket being integrally mounted on the feeding platform, and a driving motor and a double-headed screw driven for rotation by the driving motor being arranged at the lower end of the feeding platform, the feeding platform being provided with a supporting mechanism for lifting the paper bags via the double-headed screw, a driving cylinder being fixedly mounted on the load-bearing bracket, and the load-bearing bracket being provided with a supporting mechanism for opening the paper bags via the driving cylinder.

[0007] Preferably, a first groove is formed in the middle of the feeding platform, and a second groove is formed at the bottom end of the first groove;

[0008] The driving motor is fixedly installed at one side of the feeding platform, and the double-headed screw is rotatably installed at the lower end of the feeding platform.

[0009] Preferably, the supporting mechanism includes a movable nut adapted to be installed on a double-headed screw, a long guide groove is opened at the lower end of the feeding platform, and a guide block fixedly connected to the movable nut is slidably installed in the long guide groove, and a telescopic rod extending into the second groove and movably pulled by the guide block is slidably sleeved on the bottom end of the feeding platform, and a placement plate for supporting the paper bag is fixedly installed on the telescopic rod.

[0010] Preferably, a first connecting rod is pin-connected between the guide block and the telescopic rod, and the placement plate is horizontally connected to the top end of the telescopic rod located in the second groove.

[0011] Preferably, the supporting mechanism comprises a lifting platform fixedly connected to the output end of the driving cylinder, an automatic telescopic rod is fixedly installed at the lower end of the lifting platform, and an opening and closing rod movably pulled by the automatic telescopic rod is installed on the pin shaft of the lifting platform, a limited length groove is provided at the lower end of the lifting platform, and a limited bracket movably pulled by the opening and closing rod is provided in the limited length groove, and a supporting plate extending into the paper bag is fixedly installed at the lower end of the limited bracket.

[0012] Preferably, a second connecting rod is pin-connected between the output end of the automatic telescopic rod and the opening and closing rod, a lifting slide groove is provided in the limit bracket, and a lifting slider connected to the pin shaft of the opening and closing rod is slidably sleeved in the lifting slide groove.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model opens a first groove and a second groove from top to bottom in the feeding platform, and sets a double-headed screw driven to rotate by a driving motor at the lower end of the feeding platform. The horizontally movable nut is used to provide support for the telescopic rod and the placement plate extending into the second groove, so as to support the lifting and lowering movement of the paper bag according to the folding and unfolding state of the paper bag.

[0015] 2. The utility model utilizes a driving cylinder to drive a lifting platform on which a supporting mechanism is installed, utilizes the lifting platform to set a limit bracket and a supporting plate that are movably pulled by an automatic telescopic rod, and utilizes a horizontally expandable supporting plate to support a folded paper bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a bag opening device for a food packaging line proposed by the utility model;

[0017] Figure 2 This is an enlarged schematic diagram of the structure of part A of a bag opening device for a food packaging line proposed by the utility model;

[0018] Figure 3 This is a top view of a bag opening device for a food packaging line proposed by the utility model;

[0019] Figure 4 This is a cross-sectional view of a bag opening device for a food packaging line proposed by the utility model;

[0020] Figure 5 Schematic diagram of the change from the folded state to the opened state of a paper bag.

[0021] In the figure: 1. feeding platform; 101. first groove; 102. second groove; 2. load-bearing bracket; 3. driving motor; 4. double-headed screw; 5. moving nut; 6. guide long groove; 7. guide block; 8. telescopic rod; 9. placement plate; 10. first connecting rod; 11. driving cylinder; 12. lifting platform; 13. automatic telescopic rod; 14. opening and closing rod; 15. second connecting rod; 16. limiting long groove; 17. limiting bracket; 18. top support plate; 19. lifting slide; 20. lifting slide. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 5 A bag opening device for a food packaging line includes a feeding platform 1 for horizontally conveying paper bags. The feeding platform 1 is a convex structure running left and right. Paper bags for packaging food can be conveyed on the feeding platform 1. A load-bearing bracket 2 is integrally mounted on the feeding platform 1. The load-bearing bracket 2 is a gantry structure running front and back. A driving motor 3 and a double-headed screw 4 driven to rotate by the driving motor 3 are arranged at the lower end of the feeding platform 1. Under the driving action of the double-headed screw 4, the paper bag can be lifted and moved in the second groove 102 and the first groove 101.

[0024] The feeding platform 1 is provided with a supporting mechanism for lifting the paper bag through a double-headed screw 4, and the supporting mechanism includes a movable nut 5 adapted to be installed on the double-headed screw 4. A guide long groove 6 is opened at the lower end of the feeding platform 1, and a guide block 7 fixedly connected to the movable nut 5 is slidably installed in the guide long groove 6. Under the joint action of the guide long groove 6 and the guide block 7, the movable nut 5 is made to move back and forth in a straight line. A telescopic rod 8 is slidably sleeved on the bottom end of the feeding platform 1, which extends into the second groove 102 and is movably pulled by the guide block 7. A placement plate 9 for supporting the paper bag is fixedly installed on the telescopic rod 8. The placement plate 9 moves up and down in the second groove 102, so that the height position of the paper bag can be adjusted according to the storage and unfolding states.

[0025] A driving cylinder 11 is fixedly installed on the load-bearing bracket 2, and the load-bearing bracket 2 is provided with a supporting mechanism for opening the paper bag through the driving cylinder 11, and the supporting mechanism includes a lifting platform 12 fixedly connected to the output end of the driving cylinder 11, an automatic telescopic rod 13 is fixedly installed at the lower end of the lifting platform 12, and a pin shaft on the lifting platform 12 is installed with an opening and closing rod 14 that is movably pulled by the automatic telescopic rod 13, a limited long groove 16 is provided at the lower end of the lifting platform 12, and a limiting bracket 17 that is movably pulled by the opening and closing rod 14 is provided in the limiting long groove 16, and a supporting plate 18 extending into the paper bag is fixedly installed at the lower end of the limiting bracket 17, and the specific details are shown in the appendix of the specification. Figure 5 The driving cylinder 11 is used to extend the top support plate 18 in the closed state into the folded paper bag, and the two top support plates 18 are extended by the automatic telescopic rod 13 to open the paper bag from the inside to the outside.

[0026] A first groove 101 is provided in the middle of the feeding platform 1, and a second groove 102 is provided at the bottom of the first groove 101. It is worth noting that the opening of the first groove 101 is larger than the second groove 102. The first groove 101 is used to accommodate the paper bag in the unfolded state, and the second groove 102 is used to accommodate the paper bag in the folded state.

[0027] The driving motor 3 is fixedly installed at one side of the feeding platform 1 , and the double-headed screw 4 is rotatably installed at the lower end of the feeding platform 1 .

[0028] A first connecting rod 10 is pin-connected between the guide block 7 and the telescopic rod 8 , and the placement plate 9 is horizontally connected to the top end of the telescopic rod 8 located in the second groove 102 to provide symmetrical support for the telescopic rod 8 .

[0029] A second connecting rod 15 is pin-connected between the output end of the automatic telescopic rod 13 and the opening and closing rod 14, a lifting slide 19 is provided in the limit bracket 17, and a lifting slider 20 connected to the pin of the opening and closing rod 14 is slidably sleeved in the lifting slide 19 to synchronously pull or press the two top support plates 18.

[0030] It should be noted that the specific models and specifications of the drive motor 3, the drive cylinder 11 and the automatic telescopic rod 13 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it is not repeated here.

[0031] The functional principle of the utility model can be explained through the following operation modes:

[0032] The folded paper bag is placed vertically in the first groove 101 and the second groove 102 via the feeding platform 1, and the paper bag is supported by the placement plate 9;

[0033] The driving cylinder 11 is controlled to open, so that the two closed top supporting plates 18 move vertically downward until the top supporting plates 18 are placed in the paper bag and abut against the inner walls of both sides of the paper bag;

[0034] The driving motor 3 is controlled to start, and the output end of the driving motor 3 drives the double-headed screw 4 to rotate, so that the two movable nuts 5 move toward each other, and the first connecting rod 10 is driven to move through the guide block 7, so that the telescopic rod 8 supports the placement plate 9 to move vertically upward, so that the paper bag is completely raised to the first groove 101;

[0035] The automatic telescopic rod 13 is controlled to open, and the output end of the automatic telescopic rod 13 is retracted upward, and the opening and closing rod 14 is pulled by the second connecting rod 15. Figure 5, so that the opening and closing rod 14 drives the lifting slider 20 to move up in the lifting slide slot 19 during the closing process, thereby supporting the two limit brackets 17 to open, and the paper bag is supported by the two top support plates 18, so that the paper bag is fully opened.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bag opening device for a food packaging line, comprising a feeding platform (1) for horizontally conveying paper bags, characterized in that: A load-bearing bracket (2) is integrally mounted on the feeding platform (1), and a driving motor (3) and a double-headed screw (4) driven to rotate by the driving motor (3) are arranged at the lower end of the feeding platform (1); the feeding platform (1) is provided with a supporting mechanism for lifting the paper bag via the double-headed screw (4); a driving cylinder (11) is fixedly mounted on the load-bearing bracket (2), and the load-bearing bracket (2) is provided with a supporting mechanism for opening the paper bag via the driving cylinder (11).

2. The bag opening device for food packaging line according to claim 1, characterized in that: The feeding platform (1) is provided with a first groove (101) in the middle, and a second groove (102) is provided at the bottom end of the first groove (101); The driving motor (3) is fixedly mounted on one side of the feeding platform (1), and the double-headed screw (4) is rotatably mounted on the lower end of the feeding platform (1).

3. The bag opening device for food packaging line according to claim 2, characterized in that: The supporting mechanism comprises a movable nut (5) adapted to be mounted on a double-headed screw rod (4); a guide slot (6) is provided at the lower end of the feeding platform (1); a guide block (7) fixedly connected to the movable nut (5) is slidably mounted in the guide slot (6); a telescopic rod (8) extending into the second groove (102) and movably pulled by the guide block (7) is slidably mounted at the bottom end of the feeding platform (1); a placement plate (9) for supporting paper bags is fixedly mounted on the telescopic rod (8).

4. The bag opening device for food packaging line according to claim 3, characterized in that: A first connecting rod (10) is pin-connected between the guide block (7) and the telescopic rod (8), and the placement plate (9) is horizontally connected to the top end of the telescopic rod (8) located in the second groove (102).

5. The bag opening device for food packaging line according to claim 1, characterized in that: The supporting mechanism comprises a lifting platform (12) fixedly connected to the output end of the driving cylinder (11); an automatic telescopic rod (13) is fixedly installed at the lower end of the lifting platform (12); a tensioning rod (14) movably pulled by the automatic telescopic rod (13) is installed on a pin shaft on the lifting platform (12); a limited long groove (16) is provided at the lower end of the lifting platform (12); a limited bracket (17) movably pulled by the tensioning rod (14) is provided in the limited long groove (16); a supporting plate (18) extending into the paper bag is fixedly installed at the lower end of the limited bracket (17).

6. The bag opening device for food packaging line according to claim 5, characterized in that: A second connecting rod (15) is pin-connected between the output end of the automatic telescopic rod (13) and the opening and closing rod (14); a lifting slide groove (19) is provided in the limit bracket (17); and a lifting slider (20) is slidably sleeved in the lifting slide groove (19) and connected to the pin of the opening and closing rod (14).

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