Automatic sealing machine for controlled atmosphere fresh-keeping bags of fresh agricultural products

Abstract

The utility model relates to the technical field of sealing machines, in particular to a fresh agricultural product controlled atmosphere fresh-keeping bag automatic sealing machine which comprises a working machine table, a placing plate is arranged on the upper end face of the working machine table, a limiting plate is arranged on the placing plate, a heating sealing plate is arranged above the placing plate, a pressing assembly is arranged on the heating sealing plate, and the pressing assembly is arranged on the working machine table. The pressing assembly is used for pressing the heating sealing plate to the machined part on the containing plate and can buffer pressing force, and the pressing assembly is provided with a bulldozing assembly. According to the automatic sealing machine for the controlled atmosphere fresh-keeping bags of the fresh agricultural products, wrinkles at the sealing positions of to-be-processed workpieces can be leveled and creases can be flattened through the arrangement of the bulldozing assembly, so that the situation that the sealing thicknesses are different due to the wrinkles or the creases at the sealing positions of the workpieces, and then the sealing strength of the workpieces is not uniform is avoided; and the sealing quality of the machined part is not high due to the fact that air leakage occurs at the sealing position of the machined part when the situation is serious.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing machine technical field, concretely is a kind of fresh agricultural product modified atmosphere fresh-keeping bag automatic sealing machine. BACKGROUND

[0002] Fresh agricultural product modified atmosphere fresh-keeping bag automatic sealing machine is a kind of equipment for fresh agricultural product packaging, and is especially suitable for the packaging process of perishable food such as vegetables and fruits.The main function of this machine is to seal the modified atmosphere fresh-keeping bag and maintain the atmosphere inside the bag to prolong the preservation period of food.Modified atmosphere fresh-keeping is to delay the oxidation and rotting process of food by adjusting the gas composition inside the packaging bag (usually reducing oxygen and increasing carbon dioxide and nitrogen).Modified atmosphere fresh-keeping bags are usually made of special materials that can effectively block oxygen in the air and slow down the growth of bacteria and mold.

[0003] When the conventional fresh agricultural product modified atmosphere fresh-keeping bag automatic sealing machine seals the modified atmosphere fresh-keeping bag, there are wrinkles or creases at the sealing place of the modified atmosphere fresh-keeping bag, which will cause the sealing thickness of the modified atmosphere fresh-keeping bag to be different, so that the sealing strength of the workpiece is uneven, and in serious cases, air leakage will occur at the sealing place of the workpiece, thus affecting the sealing quality of the workpiece.

[0004] Therefore, we propose a fresh agricultural product modified atmosphere fresh-keeping bag automatic sealing machine. INVENTION CONTENTS

[0005] One of the technical problems to be solved by the present application is how to design a fresh agricultural product modified atmosphere fresh-keeping bag automatic sealing machine that can make the sealing thickness uniform.

[0006] To solve the above technical problems, the present application provides a fresh agricultural product modified atmosphere fresh-keeping bag automatic sealing machine, which comprises a workbench, an upper end surface of the workbench is provided with a placing plate, a limiting plate is arranged on the placing plate, a heating sealing plate is arranged above the placing plate, a pressing assembly is arranged on the heating sealing plate, the pressing assembly is used to press the heating sealing plate towards the workpiece on the placing plate, and the pressing force can be buffered, a flattening assembly is arranged on the pressing assembly, the flattening assembly is used to press and flatten the workpiece to be processed on the placing plate, the placing plate and the workbench are connected through a moving assembly, the moving assembly allows the placing plate to adjust the front and rear positions on the workbench, and the sealing edge depth of the workpiece can be adjusted.

[0007] In some embodiments, the pressing assembly comprises a pressing plate arranged above a heating sealing plate, and a connecting plate arranged on the pressing plate, the heating sealing plate is connected to the connecting plate, the upper end surface of the pressing plate is provided with a plurality of telescopic rods, the top end of the telescopic rods is provided with a first fixing plate, a helical spring is sleeved on the telescopic rods, and the two ends of the helical spring are connected with the pressing plate and the first fixing plate respectively.

[0008] In some embodiments, the upper end surface of the first fixing plate is provided with a gas cylinder, the output end of the gas cylinder is connected with the pressing plate through the first fixing plate, the first fixing plate is provided with a support frame, and the support frame is provided with a plurality of.

[0009] In some embodiments, the pushing assembly comprises two groups of connecting seats arranged on the pressing plate, each group of the connecting seats is a plurality of, the second fixing plate is rotatably arranged on the connecting seat, the side of the second fixing plate is provided with a fixed horizontal plate, and the second fixing plate and the fixed horizontal plate are rotatably connected.

[0010] In some embodiments, one end of the second fixing plate is rotatably provided with a pushing wheel, a stretching spring is arranged between the two groups of connecting seats, and the two ends of the stretching spring are hung with hanging blocks, and the two hanging blocks are connected with the two second fixing plates respectively.

[0011] In some embodiments, the moving assembly comprises a sliding groove arranged on the working machine table and a sliding block arranged on the placing plate, the sliding block on the placing plate is slidably connected in the sliding groove on the working machine table, the limiting plate is provided with a fixed block, and the fixed block is provided with a positioning bolt.

[0012] In some embodiments, the sliding groove and the sliding block are provided with a plurality of, and the positions of the sliding groove and the sliding block correspond to each other.

[0013] In some embodiments, the moving assembly comprises a sliding groove arranged on the working machine table and a sliding block arranged on the placing plate, the sliding block on the placing plate is slidably connected in the sliding groove on the working machine table, the sliding groove is rotatably connected with a lead screw, the lead screw passes through the sliding block through threads, one end of the lead screw is provided with a rotating block, one side of the sliding groove is provided with a groove, and the rotating block is located in the groove.

[0014] The utility model at least has the following beneficial effects:

[0015] 1. The setting of the pushing assembly can flatten the wrinkles and creases of the workpiece to be processed, thereby avoiding the different thickness of the sealing caused by the wrinkles or creases of the workpiece, and further making the sealing strength of the workpiece uneven, and the situation is serious, which can cause the sealing of the workpiece to leak, and finally the sealing quality of the workpiece is not high.

[0016] 2、The setting of the pressing assembly can buffer the pressing force of the workpiece on the lower pressing plate, so that the separation of the workpiece body from the sealing part of the workpiece caused by excessive pressing force during the heating and sealing of the workpiece can be avoided, thereby improving the sealing quality of the workpiece.

[0017] 3、The setting of the moving assembly enables the placement plate and the limiting plate to move, so that the sealing depth of the workpiece can be adjusted, thereby enabling the device to set sealing lines of different depths according to needs. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a first perspective view of the overall structure of the utility model;

[0019] Figure 2 It is a second perspective view of the overall structure of the utility model;

[0020] Figure 3 It is an assembly view of the lower pressing plate and the flattening assembly of the utility model;

[0021] Figure 4 It is a split view of the working machine table and the moving assembly of the utility model;

[0022] Figure 5 It is a first perspective view of the split view of the working machine table and the moving assembly in Example 2 of the utility model;

[0023] Figure 6 It is a second perspective view of the split view of the working machine table and the moving assembly in Example 2 of the utility model.

[0024] In the figure: 1, working machine table; 2, placement plate; 20, limiting plate; 3, heating and sealing plate; 4, pressing assembly; 41, lower pressing plate; 42, connecting plate; 43, telescopic rod; 44, spiral spring; 45, first fixed plate; 46, air cylinder; 47, support frame; 5, flattening assembly; 51, connecting seat; 52, second fixed plate; 53, flattening wheel; 54, fixed cross plate; 55, tension spring; 56, hanging block; 6, moving assembly; 61, sliding groove; 62, sliding block; 63, fixed block; 64, positioning bolt; 65, screw rod; 66, rotating block; 67, groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Embodiment 1:

[0027] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0028] A kind of fresh agricultural product modified atmosphere fresh-keeping bag automatic sealing machine, including workbench 1, the upper end surface of the workbench 1 is provided with placing plate 2, the placing plate 2 is provided with limit plate 20, the top of the placing plate 2 is provided with heating sealing plate 3, the heating sealing plate 3 is provided with pressing assembly 4, the pressing assembly 4 is used to press the heating sealing plate 3 to the workpiece on placing plate 2, and the force of pressing can be buffered, the pressing assembly 4 is provided with push flat component 5, the push flat component 5 is used to press and flatten the workpiece to be processed on placing plate 2, the placing plate 2 is connected by moving assembly 6 between workbench 1, the moving assembly 6 makes the placing plate 2 can adjust front and back position on workbench 1, and make the depth of workpiece edge sealing adjustable.

[0029] The pressing assembly 4 includes the lower plate 41 being arranged above the heating sealing plate 3 and the connecting plate 42 being arranged on the lower plate 41, the heating sealing plate 3 is connected on the connecting plate 42, the upper end surface of the lower plate 41 is provided with a plurality of telescopic rods 43, the top of a plurality of telescopic rods 43 is provided with a first fixed plate 45, a plurality of telescopic rods 43 is provided with a spiral spring 44, and the two ends of the spiral spring 44 are connected with the lower plate 41 and the first fixed plate 45 respectively. The upper end surface of the first fixed plate 45 is provided with a pneumatic cylinder 46, the output end of the pneumatic cylinder 46 is connected with the lower plate 41 through the first fixed plate 45, the first fixed plate 45 is provided with a support frame 47, and the support frame 47 is provided with a plurality of.

[0030] When using, the workpiece is placed on the lower plate 41, and the workpiece sealing end is arranged on the limit plate 20, then the heating sealing plate 3 connected with the lower plate 41 is pushed down by the starting of the pneumatic cylinder 46, when the heating sealing plate 3 extrudes the workpiece on the lower plate 41, the heating sealing plate 3 fixes the position of the workpiece, if the force of the heating sealing plate 3 pressing the workpiece is too large, the lower plate 41 extrudes the telescopic rod 43 and the spiral spring 44, and the telescopic rod 43 and the spiral spring 44 are contracted under stress, so as to relieve the pressing force of the heating sealing plate 3 to the workpiece, then the heating sealing plate 3 is started, and the heating sealing plate 3 seals the workpiece by high temperature.

[0031] The setting of the pressing assembly 4 can buffer the pressing force of the workpiece sealed on the lower plate 41, which can avoid the separation phenomenon between the sealing part of the workpiece and the workpiece body due to the excessive pressing force when the workpiece is heated and sealed, so as to solve the problem of low sealing quality of the workpiece.

[0032] The push flat assembly 5 comprises two groups of connecting seats 51 arranged on the lower pressing plate 41, each group of the connecting seats 51 is a plurality of, the second fixing plate 52 is rotatably arranged on the connecting seat 51, a plurality of the second fixing plate 52 is provided with a fixed transverse plate 54 on one side, and a plurality of the second fixing plate 52 is rotatably connected with the fixed transverse plate 54. One end of the second fixing plate 52 is rotatably provided with a push flat wheel 53, a tension spring 55 is arranged between the two groups of connecting seats 51, and the two ends of the tension spring 55 are hung with a hanging block 56. The two hanging blocks 56 are connected with the two second fixing plates 52 respectively.

[0033] It should be noted that the second fixing plate 52 is inclined to place, and the two groups of second fixing plates 52 are placed in an eight-shaped manner, and each group of the plurality of second fixing plates 52 is parallel to each other.

[0034] In use, when the heating sealing plate 3 moves towards the workpiece on the lower pressing plate 41, the push flat wheel 53 will first contact the workpiece on the pressing plate 41, and as the heating sealing plate 3 continues to move downward, the push flat wheel 53 is forced to roll to the two sides of the workpiece, the push flat wheel 53 rolls to pull the workpiece straight, and the fold on the workpiece is flattened, and the workpiece is processed and sealed when the heating sealing plate 3 contacts the workpiece on the lower pressing plate 41.

[0035] Through the arrangement of the push flat assembly 5, the folds at the sealing part of the workpiece to be processed can be flattened, and the folds can be flattened, so that the thickness of the sealing part of the workpiece is different due to the folds or folds, and the sealing strength of the workpiece is not uniform, and the situation is serious, which can cause the sealing part of the workpiece to leak, and finally the sealing quality of the workpiece is not high.

[0036] The moving assembly 6 comprises a sliding groove 61 opened in the working machine table 1 and a sliding block 62 arranged on the placing plate 2, the sliding block 62 on the placing plate 2 is slidably connected in the sliding groove 61 on the working machine table 1, the limiting plate 20 is provided with a fixed block 63, and the fixed block 63 is provided with a positioning bolt 64. The sliding groove 61 and the sliding block 62 are provided with a plurality of, and the positions of the plurality of sliding grooves 61 and the sliding blocks 62 correspond to each other.

[0037] In use, the positioning bolt 64 is disassembled, and then the placing plate 2 is pushed to move on the working machine table 1 along the sliding groove 61, the placing plate 2 is moved to the target position, the positioning bolt 64 is rotated to make one end of the positioning bolt 64 abut on the working machine table 1, so as to limit the position of the placing plate 2, then the workpiece sealing part is abut on the limiting plate 20, and then the workpiece is sealed.

[0038] The setting of the moving assembly 6 makes the placement plate 2 and the limiting plate 20 movable, so that the sealing depth of the workpiece can be adjusted, and thus the device can set sealing lines with different depths according to needs.

[0039] Embodiment 2

[0040] Please refer to Figure 5 and Figure 6 The utility model provides a technical scheme:

[0041] Different from embodiment 1, the scheme provides another moving mode of the placement plate 2 and the limiting plate 20: the moving assembly 6 includes a sliding groove 61 opened on the workbench 1 and a sliding block 62 arranged on the placement plate 2, the sliding block 62 on the placement plate 2 is slidably connected in the sliding groove 61 on the workbench 1, a lead screw 65 is rotatably connected in the sliding groove 61, the lead screw 65 passes through the sliding block 62 through screw threads, one end of the lead screw 65 is provided with a rotating block 66, a recess 67 is formed in one side of the sliding groove 61, and the rotating block 66 is located in the recess 67.

[0042] In use, the rotating block 66 in the recess 67 rotates the lead screw 65, and the lead screw 65 drives the placement plate 2 and the limiting plate 20 to move along the sliding groove 61 through the sliding block 62, until the placement plate 2 and the limiting plate 20 are moved to the target position, and the rotation of the rotating block 66 is stopped.

[0043] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model.

Claims

1. An automatic sealing machine for modified atmosphere packaging bags of fresh agricultural products, comprising a worktable (1), wherein a placement plate (2) is provided on the upper surface of the worktable (1), a limiting plate (20) is provided on the placement plate (2), and a heating sealing plate (3) is provided above the placement plate (2), characterized in that: The heating sealing plate (3) is provided with a pressing assembly (4) for pressing the heating sealing plate (3) to the workpiece on the placing plate (2), and the pressing force can be buffered, the pressing assembly (4) is provided with a flattening assembly (5) for pressing and flattening the workpiece to be processed on the placing plate (2), the placing plate (2) and the working machine (1) are connected through a moving assembly (6), the moving assembly (6) can adjust the front and back positions of the placing plate (2) on the working machine (1), and the edge sealing depth of the workpiece can be adjusted.

2. The automatic sealing machine for MAP bags for fresh agricultural products according to claim 1, characterized in that: The pressing assembly (4) comprises a pressing plate (41) arranged above the heating sealing plate (3) and a connecting plate (42) arranged on the pressing plate (41), the heating sealing plate (3) is connected to the connecting plate (42), the upper end surface of the pressing plate (41) is provided with a plurality of telescopic rods (43), the top ends of the plurality of telescopic rods (43) are provided with a first fixed plate (45), a helical spring (44) is sleeved on the plurality of telescopic rods (43), and the two ends of the helical spring (44) are connected with the pressing plate (41) and the first fixed plate (45) respectively.

3. The automatic sealing machine for MAP bags for fresh agricultural products according to claim 2, characterized in that: The upper end surface of the first fixed plate (45) is provided with a pneumatic cylinder (46), the output end of the pneumatic cylinder (46) penetrates through the first fixed plate (45) and is connected with the pressing plate (41), and the first fixed plate (45) is provided with a support frame (47), and the support frame (47) is provided with a plurality of.

4. The automatic sealing machine for MAP bags for fresh agricultural products according to claim 2, characterized in that: The flattening assembly (5) comprises two groups of connecting seats (51) arranged on the pressing plate (41), each group of the connecting seats (51) is a plurality of, the second fixed plate (52) is rotatably arranged on the connecting seat (51), the side of the plurality of second fixed plates (52) is provided with a fixed transverse plate (54), and the plurality of second fixed plates (52) are rotatably connected with the fixed transverse plate (54).

5. The automatic sealing machine for MAP bags for fresh agricultural products according to claim 4, characterized in that: One end of the second fixed plate (52) is rotatably provided with a flattening wheel (53), a tensile spring (55) is arranged between the two groups of connecting seats (51), the two ends of the tensile spring (55) are hung with a hanging block (56), and the two hanging blocks (56) are connected with the two second fixed plates (52) respectively.

6. The automatic sealing machine for MAP bags for fresh agricultural products according to claim 1, characterized in that: The moving assembly (6) comprises a sliding groove (61) opened on the working machine (1) and a sliding block (62) arranged on the placing plate (2), the sliding block (62) on the placing plate (2) is slidably connected in the sliding groove (61) on the working machine (1), the limiting plate (20) is provided with a fixed block (63), and the fixed block (63) is provided with a positioning bolt (64).

7. The automatic sealing machine for MAP bags for fresh agricultural products according to claim 6, characterized in that: The sliding groove (61) and the sliding block (62) are provided with a plurality of, and the positions of the plurality of sliding grooves (61) and sliding blocks (62) correspond to each other.

8. The automatic sealing machine for MAP bags for fresh agricultural products according to claim 1, characterized in that: The mobile assembly (6) comprises a sliding groove (61) opened on the working machine table (1) and a sliding block (62) arranged on the placing plate (2), the sliding block (62) on the placing plate (2) is slidingly connected in the sliding groove (61) on the working machine table (1), a lead screw (65) is rotationally connected in the sliding groove (61), the lead screw (65) passes through the sliding block (62) through threads, one end of the lead screw (65) is provided with a rotating block (66), one side of the sliding groove (61) is provided with a recess (67), and the rotating block (66) is located in the recess (67).

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