An inflation packaging machine

Abstract

The utility model discloses an inflatable packing machine relates to spring packing technical field, including by packing machine main part, feed hopper, make bagger, side edge heat seal subassembly, matrix frame, bottom heat seal cutout subassembly spring packing machine that constitutes, the side edge heat seal subassembly is used for to the both sides of roll film sleeve connection in the outside of make bagger heat seal fixed, bottom heat seal cutout subassembly installs in the inside of matrix frame, is used for for roll film bottom heat seal, cutout, the inside of make bagger and the top of matrix frame is provided with inflatable subassembly, inflatable subassembly is used for to the inside of packing bag inflation operation. The utility model discloses through setting up inflatable subassembly, through two clamps bag opening clamping, make the suction pipe to be able to draw away the air in the bag inside and form vacuum, after, external inflation system operation will inert gas through the inflation pipe to the bag inside inflation, like this, can realize the air in the bag inside sufficient replacement.

Description

Technical Field

[0001] This utility model relates to the field of spring packaging technology, specifically an inflatable packaging machine. Background Technology

[0002] A spring packaging machine is an automated device primarily used to automatically count, arrange, and pack large quantities of scattered springs (or other similar small hardware items such as screws and nuts) into packaging bags. The machine includes a film holder, bag maker, heat sealer, and cutter, responsible for bag making, sealing, and cutting. Its working principle is as follows: Bag making and material feeding: Packaging film rolls (usually rolls of OPP, PE and other plastic films) are installed on the machine, formed by a set of bag makers and sealed at the bottom and sides by a heat sealing knife to form an open bag located below the material feeding port.

[0003] Quantitative feeding: Pour the weighed and quantitative spring into the feeding port so that it falls accurately into the waiting packaging bag below; Heat sealing and cutting: After the spring drops in, the heat sealing knife immediately falls, sealing the top opening of the bag and cutting off the connection with the subsequent film, forming an independent, sealed packaging bag; When packaging springs, gas-filled packaging, also known as "nitrogen-filled packaging" or "modified atmosphere packaging," is used. This process adds a "gas replacement" step to the standard packaging procedure. The core principle is to replace the air (especially oxygen and moisture) inside the packaging bag with an inert gas (usually nitrogen, N2) and then seal it. In spring packaging, this is mainly used for rust prevention, oxidation prevention, and shock absorption.

[0004] When existing spring packaging machines perform gas-filled packaging, an inflation nozzle connected to the inflation system is inserted into the opening of the bag. High-pressure, high-purity nitrogen is continuously blown into the bag through the nozzle. Since nitrogen is heavier than air, it will sink to the bottom, while the air (containing oxygen and moisture) inside the bag will be squeezed out from the bag opening due to the air pressure. After inflation is completed, the inflation nozzle is quickly pulled out, and the machine's heat-sealing knife immediately presses down. Under the positive pressure nitrogen environment inside the bag, the bag opening is completely heat-sealed, locking the pure nitrogen firmly inside the bag. However, in actual operation, due to the limited space of the equipment, the vertical movement height of its inflation nozzle is limited, that is, the depth to which the inflation nozzle can be inserted into the bag opening is limited. There is a problem that nitrogen is blown out directly without effectively replacing the air at the bottom, resulting in insufficient replacement and residual air inside the bag. This is not conducive to the packaging and protection of the spring. Based on this, an inflation packaging machine is provided. Utility Model Content

[0005] The purpose of this utility model is to provide an inflatable packaging machine in order to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an inflatable packaging machine, comprising a packaging machine body, a feeding hopper, a bag maker, a side heat sealing assembly, a matrix frame, and a bottom heat sealing and cutting assembly. The feeding hopper is fixed to the top of the packaging machine body. The bag maker is located in front of the packaging machine body and connected to the feeding hopper. The side heat sealing assembly is installed at the front end of the packaging machine body and located behind the bag maker. The side heat sealing assembly is used to heat seal and fix the two sides of the roll film sleeved on the outside of the bag maker. The matrix frame is fixed to the inside of the packaging machine body and extends to the front of the packaging machine body, and is located directly below the bag maker. The bottom heat sealing and cutting assembly is installed inside the matrix frame and is used to heat seal and cut the bottom of the roll film. An inflatable assembly is provided on the inside of the bag maker and the top of the matrix frame. The inflatable assembly is used to inflate the inside of the packaging bag. The inflation assembly includes an air extraction pipe, an inflation pipe, a guide rail, a slide, a clamping plate, and a semi-circular clearance groove. The air extraction pipe and air inflation pipe are symmetrically fixed to the inside of the bag maker and extend out to the upper and lower ends of the bag maker. The guide rails are symmetrically fixed on the top two sides of the matrix frame, and the clamping plates are symmetrically distributed above the two guide rails. The bottom of the clamping plates is slidably connected to the guide rails through a sliding block. The semi-circular clearance groove is provided on the end faces of the two clamping plates that are close to each other, and there are two semi-circular clearance grooves. The two semi-circular clearance grooves are respectively aligned with the parts of the air extraction pipe and the air inflation pipe that protrude from the bottom of the bag maker. Two clamps are brought close together to clamp the part of the packaging bag located below the bag maker, which facilitates the air extraction operation of the air extraction tube. The air inflator tube is used to inflate the packaging bag after air extraction, thereby achieving air inflation protection for the spring.

[0007] As a further embodiment of this utility model: the inflation assembly also includes a fixed end plate, a drive cylinder, an L-shaped toothed plate, and a transmission gear; The fixed end plate is fixed to the top front end of the matrix frame, the driving cylinder is fixed to the front end of the driving cylinder, and the output end of the driving cylinder passes through the fixed end plate and is fixedly connected to a clamping plate. Two L-shaped toothed plates are provided, and the two L-shaped toothed plates are respectively fixed to one side of the two clamping plates and extend to the outer side of the matrix frame; The transmission gear is rotatably mounted on the outer side of the matrix frame via a rotating shaft and meshes with the longitudinal tooth arm portion of the two L-shaped tooth plates. The transmission gear and the two L-shaped toothed plates are used to achieve synchronous and opposite-direction operation of the two clamping plates.

[0008] As a further embodiment of this utility model: the longitudinal tooth arms of the two L-shaped tooth plates are staggered in the horizontal direction, and the central tooth arms of the two L-shaped tooth plates respectively mesh with the upper and lower ends of the transmission gear.

[0009] As a further embodiment of this utility model: a concave baffle is fixed on one side of the external side of the side heat sealing assembly, and the two L-shaped toothed plates and the transmission gear are distributed on the inner side of the concave baffle.

[0010] As a further improvement of this utility model: the center of the bottom end of the air extraction pipe and the air inflation pipe coincides with the symmetrical plane of the two clamping plates, and the inner diameter of the semi-circular clearance groove matches the outer diameter of the air extraction pipe and the air inflation pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By setting up an inflation component, the bag opening is clamped by two clamps, allowing the suction tube to draw out the air inside the bag to create a vacuum. Then, the external inflation system operates to inflate the bag with inert gas through the inflation tube, thus achieving full replacement of the air inside the bag. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a disassembled schematic diagram of the inflatable component of this utility model; Figure 4 This is a schematic diagram showing the distribution of some parts of the inflatable component of this utility model.

[0013] In the diagram: 1. Spring packaging machine; 101. Packaging machine body; 102. Feed hopper; 103. Bag maker; 104. Side heat sealing assembly; 105. Matrix frame; 106. Bottom heat sealing and cutting assembly; 2. Inflation assembly; 201. Air extraction pipe; 202. Inflation pipe; 203. Guide rail; 204. Slide; 205. Clamping plate; 206. Fixed end plate; 207. Drive cylinder; 208. L-shaped toothed plate; 209. Transmission gear; 210. Semi-circular clearance groove; 3. Side concave baffle. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 In this embodiment of the present invention, an inflatable packaging machine includes a spring packaging machine 1 composed of a packaging machine body 101, a feeding hopper 102, a bag maker 103, a side heat sealing assembly 104, a matrix frame 105, and a bottom heat sealing and cutting assembly 106. The feeding hopper 102 is fixed to the top of the packaging machine body 101. The bag maker 103 is distributed in front of the packaging machine body 101 and connected to the feeding hopper 102. The side heat sealing assembly 104 is installed at the front end of the packaging machine body 101 and distributed behind the bag maker 103. Component 104 is used to heat seal and fix the two sides of the roll film sleeved on the outside of the bag maker 103. The matrix frame 105 is fixed inside the packaging machine body 101 and extends to the front of the packaging machine body 101. The matrix frame 105 is distributed directly below the bag maker 103. The bottom heat sealing and cutting component 106 is installed inside the matrix frame 105 and is used to heat seal and cut the bottom of the roll film. An inflation component 2 is provided on the inside of the bag maker 103 and the top of the matrix frame 105. The inflation component 2 is used to inflate the inside of the packaging bag. The inflation assembly 2 includes an air extraction pipe 201, an inflation pipe 202, a guide rail 203, a slide 204, a clamping plate 205, and a semi-circular clearance groove 210; The air extraction pipe 201 and the air inflation pipe 202 are symmetrically fixed to the inside of the bag maker 103 and extend out to the upper and lower ends of the bag maker 103. The guide rails 203 are symmetrically fixed on the top two sides of the matrix frame 105, and the clamping plates 205 are symmetrically distributed above the two guide rails 203. The bottom of the clamping plates 205 is slidably connected to the guide rails 203 through the slide block 204. The semi-circular clearance groove 210 is provided on the end faces of the two clamping plates 205 that are close to each other, and there are two semi-circular clearance grooves 210. The two semi-circular clearance grooves 210 are respectively aligned with the parts of the air extraction pipe 201 and the air inflation pipe 202 that protrude from the bottom of the bag maker 103. The packaging bag is clamped by two clamping plates 205 close to each other to facilitate the air extraction operation of the air extraction pipe 201. The air inflator 202 is used to inflate the packaging bag after air extraction to achieve air protection for the spring. The inflation assembly 2 also includes a fixed end plate 206, a drive cylinder 207, an L-shaped toothed plate 208, and a transmission gear 209; The fixed end plate 206 is fixed to the top front end of the matrix frame 105, the drive cylinder 207 is fixed to the front end of the drive cylinder 207, and the output end of the drive cylinder 207 passes through the fixed end plate 206 and is fixedly connected to a clamping plate 205. Two L-shaped toothed plates 208 are provided, and the two L-shaped toothed plates 208 are respectively fixed to one side of the two clamping plates 205 and extend to the outer side of the matrix frame 105. The transmission gear 209 is rotatably mounted on the outer side of the matrix frame 105 via a rotating shaft and meshes with the longitudinal tooth arm portion of the two L-shaped tooth plates 208. The transmission gear 209 and the two L-shaped toothed plates 208 are used to achieve synchronous and opposite-direction operation of the two clamping plates 205.

[0016] In this embodiment, it should be noted that the tops of the suction tube 201 and the inflation tube 202 are connected to the suction system and the inflation system respectively through external pipelines. The operating principle of this spring packaging machine 1 is as follows: The packaging film roll is supported and installed on the machine by the bracket on the top of the packaging machine 101. The packaging film roll is sleeved on the outside of the bag maker 103, and the two sides of the packaging film roll are heat-sealed and fixed by the side heat-sealing assembly 104 to form an open bag, which extends downward through the rectangular frame 105. Then, the bottom opening of the bag is heat-sealed and cut by the bottom heat-sealing and cutting assembly 106, thus forming a bag with a sealed bottom. (It should be noted that the spring packaging machine 1 is a common general-purpose spring packaging machine on the market. The side heat-sealing assembly 104 and the bottom heat-sealing and cutting assembly 106 are conventional structures of existing spring packaging machines. Therefore, they will not be described in detail here.) Afterwards, the spring, which is weighed by an external weighing device, is poured into the bag maker 103 through the feed hopper 102 and slides down the inner cavity of the bag maker 103 into the bag (it should be noted that the bag slides down a certain distance simultaneously during this process). After the spring falls in, the drive cylinder 207 starts to run, and the drive cylinder 207 pushes a clamping plate 205 to move. This clamping plate 205 drives the transmission gear 209 to rotate through an L-shaped toothed plate 208. The rotating gear 209 drives another L-shaped toothed plate 208 and another clamping plate 205 to move synchronously, and the two clamping plates 205 move in opposite directions. Finally, the two clamping plates 205 clamp the top of the bag (that is, the part of the bag near the bottom of the bag maker 103). The suction tube 201 and the inflation tube 202 are located inside the two semi-circular clearance grooves 210. Then, the external suction system operates to generate suction. This suction is used to draw air out of the bag containing the spring through the suction tube 201, creating a vacuum. Then, the external inflation system operates to inflate the bag with inert gas through the inflation tube 202, thus achieving full replacement of the air inside the bag. Afterwards, the bottom heat-sealing and cutting assembly 106 starts to seal the bag (i.e., the part of the bag near the clamping plate 205), and at the same time cuts off the connection with the subsequent film, forming an independent, sealed packaging bag, thus completing the spring inflation packaging. It should be noted that during this process, when the heat-sealing knife of the bottom heat-sealing and cutting assembly 106 approaches the bag, the drive cylinder 207 resets and causes the clamping plate 205 to reset and release the clamping of the bag, so that when the heat-sealing knife clamps the bag, the excess inert gas can be discharged.

[0017] Please refer to this carefully. Figure 1 , Figure 3 , Figure 4 The longitudinal tooth arms of the two L-shaped tooth plates 208 are staggered in the horizontal direction, and the central tooth arms of the two L-shaped tooth plates 208 respectively mesh with the upper and lower ends of the transmission gear 209. A concave baffle 3 is fixed on one side of the side heat sealing assembly 104, and two L-shaped toothed plates 208 and transmission gears 209 are distributed on the inner side of the concave baffle 3.

[0018] In this embodiment: This structure ensures that the relative displacement of the two L-shaped toothed plates 208 does not interfere with each other, and the concave baffle 3 forms a shield and protection for the transmission area of ​​the L-shaped toothed plates 208 and the transmission gear 209, preventing personnel from contacting them; It should also be noted that the L-shaped toothed plate 208 has a small travel distance, therefore, the longitudinal tooth arm of the L-shaped toothed plate 208 and the transmission gear 209 can maintain a stable meshing state.

[0019] Please refer to this carefully. Figure 1 , Figure 3 The bottom center of the suction pipe 201 and the inflation pipe 202 coincides with the symmetrical plane of the two clamping plates 205, and the inner diameter of the semi-circular relief groove 210 matches the outer diameter of the suction pipe 201 and the inflation pipe 202.

[0020] In this embodiment: With this structure, when the two clamps 205 are close to each other, they can clamp the bag, temporarily seal the top of the bag, and keep the bag in close contact with the air extraction pipe 201 and the air inflation pipe 202, providing a good sealed space for the suction of air inside the bag, which facilitates the full removal of air from the bag.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An inflatable packaging machine, comprising a spring packaging machine (1) consisting of a packaging machine body (101), a feeding hopper (102), a bag maker (103), a side heat sealing assembly (104), a matrix frame (105), and a bottom heat sealing and cutting assembly (106), wherein the feeding hopper (102) is fixed to the top of the packaging machine body (101), the bag maker (103) is distributed in front of the packaging machine body (101) and connected to the feeding hopper (102), and the side heat sealing assembly (104) is installed in front of the packaging machine body (101). The side heat-sealing assembly (104) is located at the rear of the bag maker (103) and is used to heat-seal and fix the two sides of the roll film sleeved on the outside of the bag maker (103). The matrix frame (105) is fixed to the inside of the packaging machine body (101) and extends to the front of the packaging machine body (101). The matrix frame (105) is located directly below the bag maker (103). The bottom heat-sealing and cutting assembly (106) is installed inside the matrix frame (105) and is used to heat-seal and cut the bottom of the roll film. An inflation assembly (2) is provided on the inner side of the bag maker (103) and the top of the matrix frame (105), the inflation assembly (2) being used to inflate the inside of the packaging bag. The inflation assembly (2) includes an air extraction pipe (201), an inflation pipe (202), a guide rail (203), a slide (204), a clamping plate (205), and a semi-circular clearance groove (210). The air extraction pipe (201) and the air inflation pipe (202) are symmetrically fixed to the inside of the bag maker (103) and extend out to the upper and lower ends of the bag maker (103). The guide rails (203) are symmetrically fixed on the top two sides of the matrix frame (105), and the clamps (205) are symmetrically distributed on the front and back above the two guide rails (203), and the bottom of the clamps (205) is slidably connected to the guide rails (203) through the slide (204). The semicircular clearance groove (210) is provided on the end face of the two clamping plates (205) that are close to each other, and there are two semicircular clearance grooves (210). The two semicircular clearance grooves (210) are respectively aligned with the parts of the air extraction pipe (201) and the air inflation pipe (202) that protrude from the bottom of the bag maker (103). The packaging bag is clamped by two clamps (205) close to each other to facilitate the air extraction operation of the air extraction pipe (201). The air-inflated packaging bag is then inflated through the air inflator (202) to achieve air protection for the spring.

2. The inflatable packaging machine according to claim 1, characterized in that, The inflation assembly (2) also includes a fixed end plate (206), a drive cylinder (207), an L-shaped toothed plate (208), and a transmission gear (209). The fixed end plate (206) is fixed to the top front end of the matrix frame (105), the driving cylinder (207) is fixed to the front end of the driving cylinder (207), and the output end of the driving cylinder (207) passes through the fixed end plate (206) and is fixedly connected to a clamping plate (205). Two L-shaped toothed plates (208) are provided, and the two L-shaped toothed plates (208) are respectively fixed to one side of the two clamping plates (205) and extend to the outer side of the matrix frame (105); The transmission gear (209) is rotatably mounted on the outer side of the matrix frame (105) via a rotating shaft and meshes with the longitudinal tooth arm portion of the two L-shaped tooth plates (208); The transmission between the transmission gear (209) and the two L-shaped toothed plates (208) is used to achieve synchronous and opposite-direction operation of the two clamping plates (205).

3. The inflatable packaging machine according to claim 2, characterized in that, The longitudinal tooth arms of the two L-shaped tooth plates (208) are staggered in the horizontal direction, and the central tooth arms of the two L-shaped tooth plates (208) respectively mesh with the upper and lower ends of the transmission gear (209).

4. The inflatable packaging machine according to claim 3, characterized in that, The side heat sealing assembly (104) has a concave baffle (3) fixed on one side of its exterior, and the two L-shaped toothed plates (208) and the transmission gear (209) are distributed on the inside of the concave baffle (3).

5. The inflatable packaging machine according to claim 3, characterized in that, The bottom center of the air extraction pipe (201) and the air inflation pipe (202) coincides with the symmetrical plane of the two clamps (205), and the inner diameter of the semi-circular clearance groove (210) matches the outer diameter of the air extraction pipe (201) and the air inflation pipe (202).

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