Extrusion exhaust device for prefabricated bag product production

Abstract

The utility model discloses an extrusion exhaust device for prefabricated bag product production. The extrusion exhaust device comprises a rack, a transmission device, a cam, a connecting rod, a rotating block, a conveying plate, a fixing block, an exhaust structure, a positioning plate and an upper sealing device. The transmission device and the upper sealing device are connected to the rack, the rotating block is rotationally connected to the rack, the conveying plate is slidably connected to the rotating block, the positioning plate is arranged over the conveying plate, the rotating block, the conveying plate and the positioning plate are all connected with the transmission device, the fixing block is connected to the conveying plate and the positioning plate, and the fixing block is connected with a clamping rod. An exhaust structure is connected to the fixing block, right opposite to the tail end of the positioning plate, on the conveying plate. The exhaust structure comprises a clamping rod, an exhaust rod and a pressing block. Compared with a traditional packaging bag hole reserving or needle type punching technology, the air exhausting device has the advantages that the air exhausting rod is used on the packaging machine for exhausting the packaging bag filled with materials, the upper sealing opening of the packaging bag is flattened and sealed through the heat sealing pressing block after the bag is unfolded, the quality safety of salt product packaging is guaranteed, and the food safety specification is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing machine especially relates to a kind of extrusion exhaust device for prefabricated bag product production. BACKGROUND

[0002] In automatic packaging technology, the exhaust effect of the packaging bag is one of the key factors affecting the packaging sealing performance and product quality. The residual air in the packaging bag can affect the appearance of the product, the quality of the carton and the shelf life. Effective exhaust technology can remove the air in the packaging bag, achieve flat carton sealing and delay product oxidation, maintain the freshness and stability of the product. At the same time, good exhaust can also ensure the sealing performance of the packaging bag during sealing, prevent external air and moisture from entering, and ensure product quality and safety.

[0003] In the existing horizontal bag feeding full-automatic packaging technology, there is no standard exhaust process for the packaging bag after filling. Generally, exhaust is achieved by pre-reserving holes in the packaging bag or by needle punching the packaging bag during sealing, which affects the sealing performance of the packaging and the product quality and shelf life of the salt product, does not meet the food safety standards, and is not conducive to the safety of salt product packaging quality. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide an extrusion exhaust device for prefabricated bag product production. The packaging bag is conveyed to the exhaust area after filling, the exhaust rod performs extrusion exhaust operation on the area above the top of the packaging bag without material, and the briquetting and flattening device flattens one side of the packaging bag. The clamping rod clamps the other side of the packaging bag to unfold the packaging bag. The packaged product after exhaust is conveyed to the upper sealing station for sealing to ensure the safety and quality of salt product packaging.

[0005] The utility model is implemented by the following technical solutions:

[0006] An extrusion exhaust device for prefabricated bag product production includes a rack, a transmission device, a rotating block, a transmission plate, a positioning plate, and an upper sealing device. The transmission device and the upper sealing device are fixedly connected to the rack. The rotating block is rotatably connected to the rack. The transmission plate is slidably connected to the rotating block. The positioning plate is arranged above the transmission plate in parallel. The rotating block, the transmission plate, and the positioning plate are connected to the transmission device. A limiting rod is fixedly connected to the rack below the transmission plate. A plurality of pairs of fixed blocks are fixedly connected to the transmission plate and the positioning plate. A clamping rod is fixedly connected to the fixed blocks. An exhaust structure is connected to the fixed blocks on the transmission plate opposite to the end of the positioning plate. The exhaust structure includes the clamping rod, an exhaust rod, and a briquetting device.

[0007] Further, the limiting rod is arranged in parallel on both sides of the lower end of the packaging bag in the same horizontal plane.

[0008] Further, the transmission device is an electric motor, which is fixedly connected to the back side of the rack. The upper sealing device includes a pneumatic cylinder.

[0009] Further, the transmission plate bottom is provided with a sliding groove, and the top end of the rotating block is slidably connected to the sliding groove.

[0010] Further, the rotating block, the transmission plate and the positioning plate are movably connected to the cam connected to the rotating shaft of the transmission device through a connecting rod and a spring structure, and the cam includes a first cam, a second cam and a third cam.

[0011] Further, the fixed blocks fixedly connected to the transmission plate and the positioning plate correspond to each other in the vertical direction.

[0012] Further, the middle axis distance between the clamping rod and the pressing block is slightly smaller than the width of the packaging bag.

[0013] Further, the exhaust rod is L-shaped and is arranged between the clamping rod and the pressing block, the length of the exhaust rod extending out of the transmission plate can be adjusted through the bolt on the fixed block, and is generally slightly smaller than the clamping rod and the pressing block.

[0014] Further, the bottom end of the vertical part of the end head of the exhaust rod is above the material top position after the packaging bag is filled, and the part close to the material top is slightly bent in the opposite direction of the packaging bag.

[0015] Further, the clamping rod fixedly connected to the positioning plate of the upper sealing device is arranged in the same horizontal direction as the sealing block.

[0016] Compared with the prior art, the utility model has the following obvious advantages:

[0017] Firstly, the utility model uses an L-shaped exhaust rod to replace the existing hole device, and the exhaust rod is used to perform the extrusion and exhaust operation on the position above the material top of the packaging bag, and the pressing block is used to flatten one side of the packaging bag, and the clamping rod is used to clamp the other side of the packaging bag, and the product after exhaust is transmitted to the upper sealing position for sealing, so that the air in the packaging bag is effectively removed, and the exhaust method is more simple and fast, and the safety and quality of the salt product are guaranteed, and the method is more in line with the food safety specification compared with the existing packaging bag needle type punching exhaust.

[0018] Secondly, the length of the exhaust rod extending out of the transmission plate can be adjusted through the bolt, so that the exhaust amount of different packaging bags can be adapted, and the bottom end of the vertical part of the end head of the exhaust rod is above the material top position after the packaging bag is filled, and the part close to the material top is slightly bent in the opposite direction of the packaging bag, so that the deformation of the packaging bag during extrusion is adapted to the shape of the packaging bag after filling, and the packaging bag after filling can be effectively and appropriately exhausted, and the safety and quality of the salt product packaging are guaranteed.

[0019] Thirdly, the limiting rods are arranged on both sides of the lower end part of the product, so that the position state of the packaging bag on the packaging machine is stable during the transmission of the packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the packaging bag;

[0021] Figure 2 It is a front view structure schematic view of the utility model;

[0022] Figure 3 It is a top view structure schematic view of the transmission plate;

[0023] Figure 4 It is a left view structure schematic view of the utility model;

[0024] Figure 5 It is a left view structure schematic view of the transmission part of driving the positioning plate to open and close;

[0025] Figure 6 It is a left view structure schematic view of the transmission part of driving the transmission plate to open and close;

[0026] Figure 7 It is a left view structure schematic view of the transmission part of driving the transmission plate to move.

[0027] Wherein, the relationship between the reference signs and the corresponding names is as follows:

[0028] 1, rack, 2, transmission device, 3, cam, 301, cam one, 302, cam two, 303, cam three, 4, limit rod, 5, rotating block, 6, transmission plate, 7, fixed block, 8, clamping rod, 9, exhaust rod, 10, pressing block, 11, positioning plate, 12, upper sealing device, 13, packaging bag. DETAILED DESCRIPTION

[0029] The utility model will be introduced in detail below in combination with the drawings.

[0030] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The utility model provides an extrusion exhaust device of prefabricated bag product production, including frame 1, transmission 2, cam 3, rotating block 5, transmission plate 6, fixed block 7, clamping rod 8, exhaust rod 9, briquetting 10, positioning plate 11, upper seal device 12, in the embodiment, transmission 2 is motor, fixedly connected in the back of frame 1, rotating block 5 is rotatably connected in frame 1, transmission plate 6 bottom is equipped with the chute, slidingly connected in rotating block 5 top, positioning plate 11 is parallelly arranged in transmission plate 6 directly above, rotating block 5, transmission plate 6 and positioning plate 11 pass through connecting rod and spring structure, respectively with the cam two 302, cam three 303 and cam one 301 of the rotating shaft connection of transmission 2 swing joint, the frame 1 below transmission plate 6 is fixedly connected with the limiting rod 4, and the limiting rod 4 is parallelly arranged on the same horizontal plane in the both sides of the lower end portion of packaging bag 13, transmission plate 6 and positioning plate 11 are fixedly connected with a pair of opposite fixed block 7, and the fixed block 7 is fixedly connected with opposite clamping rod 8, and the fixed block 7 fixedly connected on transmission plate 6 and positioning plate 11 correspond to each other in vertical direction, the fixed block 7 fixedly connected with exhaust structure on transmission plate 6 directly opposite the end of positioning plate 11, and the exhaust structure includes clamping rod 8, exhaust rod 9 and briquetting 10, and the central axis spacing of clamping rod 8 and briquetting 10 is slightly less than the width of packaging bag 13, and exhaust rod 9 is L type, and is set up in the middle of clamping rod 8 and briquetting 10, and the length of exhaust rod 9 that stretches out transmission plate 6 can be adjusted by the bolt on fixed block 7, generally slightly less than clamping rod 8 and briquetting 10, and the bottom of the vertical portion of exhaust rod 9 end head is directly above the material top position of packaging bag 13 after filling, and has small amplitude bending to the opposite direction of packaging bag 13, upper seal device 12 includes cylinder, fixedly connected in the frame 1 above the end of transmission plate 6, and the sealing block of upper seal device 12 is set up in the same horizontal direction with the clamping rod 8 fixedly connected on positioning plate 11.

[0031] The utility model discloses a transmission plate 6 moves to the just below of the last group fixed block 7 of positioning board 11, the cam no.2 of transmission device 2 rotating shaft and the connecting rod activity of rotating block 5, the cam no.2 302 of transmission device 2 rotating shaft and the connecting rod activity of rotating block 5, the cam no.2 302 by the part of smaller vector diameter rotates to the part of larger vector diameter, and the spring contracts and makes the connecting rod back pull, and the transmission plate 6 is pushed to the initial position by driving rotating block 5 to turn inwards.

[0032] The exhaust structure on the transmission plate 6 moves to the just below of the last group fixed block 7 of positioning board 11, the cam no.2 of transmission device 2 rotating shaft and the connecting rod activity of rotating block 5, the cam no.2 302 of transmission device 2 rotating shaft and the connecting rod activity of rotating block 5, the cam no.2 302 by the part of larger vector diameter rotates to the part of smaller vector diameter, and the spring contracts and makes the connecting rod back pull, and the transmission plate 6 is pushed to the initial position by driving rotating block 5 to turn inwards.

[0033] After the packaging bag 13 is exhausted and the middle part of the packaging bag 13 is clamped, the cam one 301 on the rotating shaft of the transmission device 2 is connected with the connecting rod of the positioning plate 11, the cam one 301 is rotated from the larger radial part to the smaller radial part, the spring is contracted to pull back the connecting rod, the positioning plate 11 is driven to open, the clamping of the upper part of the packaging bag 13 is released, the opening of the packaging bag 13 is flattened after being extruded along the vertical center line, the middle part of the packaging bag 13 is repositioned and clamped, the bag opening is flattened, the bag opening is completed, the cam three 303 on the rotating shaft of the transmission device 2 is connected with the connecting rod of the transmission plate 6, the cam three 303 is rotated from the smaller radial part to the larger radial part, the connecting rod is driven to move the transmission plate 6, the packaging bag 13 clamped on the transmission plate 6 moves to the position directly below the upper sealing device 12, the cylinder of the upper sealing device 12 drives the heat sealing block to close, the upper sealing of the packaging bag 13 is flattened to complete the sealing.

[0034] The above embodiment is only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A compression and degassing device for producing pre-made bag products, comprising a frame (1), a transmission device (2), and further comprising a rotating block (5), a transmission plate (6), a positioning plate (11), and a sealing device (12), wherein the transmission device (2) and the sealing device (12) are fixedly connected to the frame (1), the rotating block (5) is rotatably connected to the frame (1), the transmission plate (6) is slidably connected to the rotating block (5), and the positioning plate (11) is arranged parallel above the transmission plate (6), wherein the rotating block (5), the transmission plate (6), and the positioning plate (11) are connected to the transmission device (2), characterized in that: The rack (1) below the transmission plate (6) is fixedly connected with a limiting rod (4), a plurality of pairs of fixed blocks (7) are fixedly connected on the transmission plate (6) and the positioning plate (11), the fixed blocks (7) are fixedly connected with clamping rods (8), the fixed blocks (7) on the transmission plate (6) opposite to the end of the positioning plate (11) are connected with exhaust structures, the exhaust structures include the clamping rods (8), exhaust rods (9) and pressing blocks (10).

2. An extrusion venting apparatus for the production of preformed bag products according to claim 1, characterized in that: The limiting rods (4) are arranged in parallel on both sides of the lower end part of the packaging bag (13) in the same horizontal plane.

3. An extrusion venting apparatus for the production of preformed bag products according to claim 1, characterized in that: The transmission device (2) is a motor fixedly connected to the back side of the rack (1), and the upper sealing device (12) includes a cylinder.

4. An extrusion venting apparatus for the production of preformed bag products according to claim 1, characterized in that: The bottom of the transmission plate (6) is provided with a sliding groove, and the top end of the rotating block (5) is slidably connected to the sliding groove.

5. An extrusion venting apparatus for the production of preformed bag products as defined in claim 1, wherein: The rotating block (5), the transmission plate (6) and the positioning plate (11) are movably connected with the cam (3) on the rotating shaft of the transmission device (2) through a connecting rod and a spring structure, and include a cam one (301), a cam two (302) and a cam three (303).

6. An extrusion venting apparatus for the production of preformed bag products according to claim 1, characterized in that: The fixed blocks (7) fixedly connected on the transmission plate (6) and the positioning plate (11) correspond to each other in the vertical direction.

7. An extrusion venting apparatus for the production of preformed bag products according to claim 1, characterized in that: The middle axis distance of the clamping rod (8) and the pressing block (10) is slightly smaller than the width of the packaging bag (13).

8. An extrusion venting apparatus for the production of preformed bag products according to claim 1, characterized in that: The exhaust rod (9) is L-shaped, arranged in the middle of the clamping rod (8) and the pressing block (10), the length of the exhaust rod (9) extending out of the transmission plate (6) can be adjusted by the bolt on the fixed block (7), generally slightly smaller than the clamping rod (8) and the pressing block (10).

9. An extrusion venting apparatus for the production of preformed bag products according to claim 8, wherein: The bottom end of the vertical part of the end of the exhaust rod (9) is above the material top position of the packaging bag (13) after filling, and is slightly curved in the opposite direction of the packaging bag (13).

10. An extrusion venting apparatus for the production of preformed bag products according to claim 1, characterized in that: The sealing block of the upper sealing device (12) is arranged in the same horizontal direction with the clamping rod (8) fixedly connected on the positioning plate (11).

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