Vertical packaging machine

Abstract

According to the technical scheme, the vertical packaging machine is characterized in that the vertical packaging machine comprises a machine frame, the machine frame is provided with a film feeding assembly, the film feeding assembly comprises a film penetrating shaft, and a packaging film is arranged on the film penetrating shaft in a sleeving mode; the bag forming assembly comprises a lapel bag forming device, a material falling pipe is arranged in the middle of the lapel bag forming device, materials are input into the material falling pipe from the top of the material falling pipe, a side sealing device is arranged on one side of the material falling pipe, and the side edge of the packaging film is subjected to heat sealing through the side sealing device; the film feeding assembly comprises conveying belts arranged on the two sides of the discharging pipe respectively and further comprises a clamping air cylinder, and the clamping air cylinder drives the conveying belts to be clamped on the side wall of the discharging pipe, so that the conveying belts convey the packaging film downwards; the heat sealing and bag cutting assembly is arranged below the material falling pipe and comprises two heat sealing heads which can be clamped with each other, cutters are connected into the heat sealing heads in a sliding mode, and the heat sealing and bag cutting assembly further comprises a bag cutting air cylinder used for driving the cutters to move; the bag making, charging and bag sealing integrated function is integrated, and automation, intelligentization and attractiveness of agricultural product packaging are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, and more specifically, it relates to a vertical packaging machine. Background Art

[0002] With the rapid development of modern agriculture, the packaging of agricultural products has gradually become an important link to enhance product added value, ensure product quality, and reduce logistics losses. However, at present, the packaging of agricultural products in China mostly adopts simple and crude methods, such as directly using plastic bags or cardboard boxes, lacking professional packaging design and advanced packaging technology. This packaging method is not only difficult to effectively protect agricultural products, but also easily causes damage and deterioration of products during transportation, increasing logistics losses and costs, and seriously restricting the market competitiveness and economic benefits of agricultural products. Content of the Utility Model

[0003] To achieve the above object, the utility model provides the following technical solutions:

[0004] A vertical packaging machine includes a frame, on which are provided: a film feeding assembly including a film threading shaft, with a packaging film sleeved on the film threading shaft; a bag forming assembly including a collar bag former, with a blanking pipe arranged in the middle of the collar bag former, materials are input into the blanking pipe from the top of the blanking pipe, a side sealing device is arranged on one side of the blanking pipe, after the packaging film passes through the collar bag former, the side sealing device heat-seals the side edges of the packaging film; a film feeding assembly including conveyor belts respectively arranged on both sides of the blanking pipe, and further including a clamping cylinder for driving the conveyor belts to move, the clamping cylinder drives the conveyor belts to clamp on the side wall of the blanking pipe, so that the conveyor belts convey the packaging film downward. A heat-sealing and bag cutting assembly is arranged below the blanking pipe, including two heat seal heads that can clamp each other, a cutting knife is slidably connected inside the heat seal heads, and further including a bag cutting cylinder for driving the cutting knife to move.

[0005] The utility model is further arranged as: the film feeding assembly further includes a film feeding motor, the film feeding motor drives the film threading shaft to rotate and feed film by means of gear transmission, and further includes a floating roller slidably connected to the frame in the vertical direction, the packaging film bypasses the bottom of the floating roller and then penetrates into the bag forming assembly, when the film feeding assembly conveys the packaging film, the packaging film is pulled to drive the floating roller to move upward, a displacement sensor for detecting the moving distance of the floating roller is arranged on the frame, when the floating roller moves upward to the pre-trial distance, the film feeding motor drives the film threading shaft to rotate and feed film.

[0006] The utility model is further arranged as: the side sealing device includes a side sealing cylinder and two side seal heads, the side sealing cylinder drives one side seal head to move towards the other side seal head, so as to clamp and heat-seal the side edges of the packaging film, and the side seal heads are arranged to extend in the vertical direction.

[0007] The utility model is further arranged as follows: a support block is arranged inside the conveyor belt, and the inner side of the conveyor belt facing the blanking pipe is attached to the support block.

[0008] The utility model is further arranged as follows: the heat-sealing and bag-cutting assembly includes a heat-sealing bracket arranged on the machine frame and located below the blanking pipe. Two heat-sealing heads are slidably connected to the heat-sealing bracket. The bag-cutting cylinder is fixed on the heat-sealing bracket, and the cutting knife is connected to the piston rod of the bag-cutting cylinder. When the two heat-sealing heads clamp each other, the bag-cutting cylinder drives the cutting knife to pass through one side of the heat-sealing head and then penetrate into the other side of the heat-sealing head, thereby cutting off the packaging film.

[0009] The utility model is further arranged as follows: a clamping spring is arranged between at least one side of the heat-sealing head and the heat-sealing bracket. When the two heat-sealing heads clamp each other, the clamping spring is compressed.

[0010] The utility model is further arranged as follows: a material-supporting plate is arranged at the top of the heat-sealing head. The material-supporting plate is arranged at the opposite ends of the heat-sealing head. The material-supporting plate is inclined, and the distance between the two material-supporting plates gradually increases from bottom to top.

[0011] The utility model is further arranged as follows: an installation shaft is arranged on the machine frame and between the film-feeding assembly and the bag-forming assembly. A needle roller is rotatably connected to the installation shaft. When the packaging film passes through the needle roller, it will contact the needle roller and drive the needle roller to rotate.

[0012] Compared with the prior art, the utility model has at least the following advantages:

[0013] 1. After the packaging film enters the bag-forming assembly, it forms a cylindrical shape through the collar bag former and the side-sealing device. The heat-sealing and bag-cutting device first heat-seals the bottom of the first bag. After the material is loaded into the bag, the heat-sealing device then heat-seals the top of the bag. At this time, the cutting knife cuts the heat-sealed part into two halves, and at the same time, the top of the bag and the bottom of the next bag are heat-sealed; this device integrates the functions of bag making, material loading, and bag sealing, realizing the automation, intelligence, and aesthetics of agricultural product packaging.

[0014] 2. By setting the floating roller and the displacement sensor, the film-passing roller only rotates when feeding the film. Therefore, when the film-feeding assembly pulls the film downward, the packaging film will be tightened. At this time, the floating roller is lifted upward by the tightened packaging film. When the displacement sensor detects that the floating roller moves to the preset distance, the film-passing roller rotates to feed the film, and the floating roller falls back under the action of gravity to start the next film-feeding cycle; realizing automatic film feeding and precision control.

[0015] 3. When packing some fruits and vegetables, it is required that the packaging bag can be breathable. A needle roller is arranged between the film-feeding assembly and the bag-forming assembly. When the packaging film passes through, it can be automatically punched. Description of the Drawings

[0016] Figure 1 It is a left perspective view of the whole first embodiment;

[0017] Figure 2 It is a right perspective view of the whole first embodiment;

[0018] Figure 3 It is a side view of the first embodiment;

[0019] Figure 4 It is a structural diagram of the bag forming, film feeding, heat sealing and bag cutting assembly in the first embodiment;

[0020] Figure 5 It is a structural diagram of the side head part in the bag forming assembly;

[0021] Figure 6 It is a structural diagram of the film feeding assembly;

[0022] Figure 7 It is a structural diagram of the heat sealing and bag cutting assembly;

[0023] Figure 8 It is a structural diagram when the transmission block rotates to the vertical state to open the heat sealer head;

[0024] Figure 9 It is a structural diagram when the transmission block rotates to the horizontal state to close the heat sealer head.

[0025] Figure 10 It is a schematic diagram of the whole second embodiment.

[0026] Explanation of reference numerals:

[0027] 1. Film feeding assembly; 101. Film threading shaft; 102. Film feeding motor; 103. Driven gear; 104. Floating roller; 105. Displacement sensor; 106. Guide rail;

[0028] 2. Bag forming assembly; 201. Turned collar bag former; 202. Feed pipe; 203. Side head; 204. Side sealing cylinder;

[0029] 3. Film feeding assembly; 301. Conveyor belt; 302. Clamping cylinder; 303. Support block;

[0030] 4. Heat sealing and bag cutting assembly; 401. Heat sealing bracket; 402. Left heat sealer head; 403. Right heat sealer head; 404. Linear guide rod; 405. Linear bearing; 406. Contact plate; 407. Clamping spring; 408. Transmission block; 409. Connecting rod; 410. Heat sealing cylinder; 411. Bag cutting cylinder; 412. Cutting knife; 413. Supporting plate;

[0031] 5. Packaging film roll; 6. Mounting shaft; 7. Needle roller; 8. Machine frame; 9. Packaging film. Detailed implementation mode

[0032] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0033] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] A vertical packaging machine, as Figures 1 to 3 shown, includes a frame 8, on which are provided: a film feeding assembly 1, including a film threading shaft 101, and a packaging film 9 is sleeved on the film threading shaft 101; a bag forming assembly 2, including a collar bag former 201, a blanking pipe 202 is arranged in the middle of the collar bag former 201, materials are input into the blanking pipe 202 from the top of the blanking pipe 202, and a side sealing device is arranged on one side of the blanking pipe 202. After the packaging film 9 passes through the collar bag former 201, the side sealing device heat-seals the side of the packaging film 9; a film feeding assembly 3, conveyor belts 301 respectively arranged on both sides of the blanking pipe 202, and further includes a clamping cylinder 302 for driving the conveyor belts 301 to move. The clamping cylinder 302 drives the conveyor belts 301 to clamp on the side wall of the blanking pipe 202, so that the conveyor belts 301 convey the packaging film 9 downward; a heat sealing and bag cutting assembly 4, arranged below the blanking pipe 202, includes two heat sealing heads that can clamp each other, a cutting knife 412 is slidably connected inside the heat sealing head, the cutting knife 412 is used to separate the packaging bag from the packaging film 9, and further includes a bag cutting cylinder 411 for driving the cutting knife 412 to move.

[0035] The film threading shaft 101 is specifically an air shaft. Nine rolls of packaging film 9 are sleeved on the film threading shaft 101. By inflating the shaft, the shaft expands, thus fixing the packaging film roll 5. When the film threading shaft 101 rotates, it drives the packaging film roll 5 to rotate together. The film feeding assembly 1 further includes a film feeding motor 102 installed on one side of the frame 8. The film feeding motor 102 drives the film threading shaft 101 to rotate and feed the film through a gear transmission method. Specifically, a driven gear 103 is coaxially arranged at one end of the film threading shaft 101, and a driving gear is arranged on the output shaft of the film feeding motor 102. The driving gear meshes with the driven gear 103. The film feeding motor 102 drives the driving gear to rotate, and drives the film threading shaft 101 to rotate through the driven gear 103.

[0036] The film feeding assembly further includes a floating roller 104 slidably connected to the frame 8 in the vertical direction. Guide rails 106 are arranged on both sides of the frame 8 in the vertical direction. The ends of the floating roller 104 are slidably connected to the guide rails 106 through sliders. After the packaging film 9 is pulled out from the packaging film roll 5, it first bypasses the bottom of the floating roller 104 and then penetrates into the bag forming assembly 2. Therefore, when the film feeding assembly 3 conveys the packaging film 9, the packaging film 9 is pulled and tightened, thus driving the floating roller 104 to move upward. A displacement sensor 105 for detecting the moving distance of the floating roller 104 is installed on one side of the frame 8. When the floating roller 104 moves upward to a preset distance, the displacement sensor 105 controls the film feeding motor 102 to drive the film threading shaft 101 to rotate, so that the packaging film roll 5 rotates to feed the film. At this time, under the action of gravity, the floating roller 104 moves downward to the bottom, starting the next film feeding cycle, realizing automatic film feeding of the device and precisely controlling the film feeding amount each time.

[0037] As Figures 4 to 6 shown, the blanking pipe 202 is cylindrical. The collar bag former 201 is sleeved outside the blanking pipe 202. The collar bag former 201 is an existing product on the market, and its bag forming principle will not be elaborated here. When the packaging film 9 passes through the collar bag former 201, both ends of the packaging film 9 will wrap around forward and surround the peripheral side wall of the blanking pipe 202. The side sealing device is responsible for heat-sealing these two ends on the side together, so that the packaging film 9 forms a cylindrical shape.

[0038] The side sealing device includes a side sealing cylinder 204 and two side seal heads 203. The side sealing cylinder 204 drives one side seal head 203 to move towards the other side seal head 203, thereby clamping and heat-sealing the side of the packaging film 9. The side seal head 203 is fixed on the piston rod of the side sealing cylinder 204 to achieve driving, and the other side seal head 203 is installed on the frame 8 and always remains fixed. The side seal head 203 extends in the vertical direction, which is convenient for heat-sealing the side of the packaging film 9 and has higher efficiency.

[0039] On the frame 8 and on both sides of the blanking pipe 202, clamping cylinders 302 are fixedly installed. The conveyor belts 301 are respectively connected to the piston rods of the clamping cylinders 302. When the piston rods of the clamping cylinders 302 extend, they drive the conveyor belts 301 to move towards the blanking pipe 202. The conveyor belts 301 are arranged to extend in the vertical direction and are located below the turnover collar bag former 201. When the driving synchronous pulleys and the driven synchronous pulleys at the upper and lower ends of the conveyor belts 301 rotate, they drive the synchronous belts to run. The driving synchronous pulleys are driven by a driving motor installed on the frame 8, and the output shaft of the driving motor is connected to the rotating shaft of the driving synchronous pulley through a universal joint.

[0040] When the clamping cylinder 302 drives the conveyor belt 301 to clamp the packaging film 9 on the side wall of the blanking pipe 202, the conveyor belt 301 rotates downward, thereby pulling the packaging film 9 downward. A support block 303 is arranged inside the conveyor belt 301, and the inner side of the conveyor belt 301 facing the blanking pipe 202 is attached to the support block 303. When the conveyor belt 301 clamps, the support block 303 plays a role in supporting the conveyor belt 301, so that the conveyor belt 301 will not concave inward.

[0041] As Figures 7 to 9 As shown in the figure, the heat-sealing and bag-cutting assembly 4 includes a heat-sealing bracket 401 arranged on the frame 8 and located below the blanking pipe 202. Two heat-sealing heads are slidably connected to the heat-sealing bracket 401. Linear guide rods 404 and linear bearings 405 are arranged on both sides of the heat-sealing bracket 401. The linear bearings 405 are fixed, and the linear guide rods 404 slide in the linear bearings 405. The two heat-sealing heads include a left heat-sealing head 402 and a right heat-sealing head 403. The left heat-sealing head 402 and the right heat-sealing head 403 are respectively installed on a connecting plate, and the connecting plate is slidably connected to the linear guide rod. A contact plate 406 is fixed on the linear guide rod 404 on the side of the right heat-sealing head 403 away from the left heat-sealing head 402. A clamping spring 407 is connected between the connecting plate of the right heat-sealing head 403 and the contact plate 406.

[0042] A transmission block 408 is rotatably connected to the heat-sealing bracket 401. The rotating shaft of the transmission block 408 is located in the middle of it. Connecting rods 409 are respectively rotatably connected to the upper and lower ends of the transmission block 408. The other end of the bottom connecting rod 409 is rotatably connected to the left heat-sealing head 402, and the other end of the top connecting rod 409 is rotatably connected to the linear guide rod 404 (realized through a stiffener fixed on the linear guide rod 404). A heat-sealing cylinder 410 for driving the transmission block 408 to rotate is also installed on the heat-sealing bracket 401, and the tail of the heat-sealing cylinder 410 is rotatably connected.

[0043] When the transmission block 408 rotates from the vertical state to the horizontal state, the left heat sealer 402 is pushed forward along the linear guide rod 404 through the bottom connecting rod 409, and at the same time, the linear guide rod 404 is pulled backward through the top connecting rod 409, so that the left heat sealer 402 and the right heat sealer 403 move towards each other for clamping; when the transmission block 408 rotates back from the horizontal state to the vertical state, the left heat sealer 402 is pulled backward along the linear guide rod 404 through the bottom connecting rod 409, and at the same time, the linear guide rod 404 is pushed forward through the top connecting rod 409, so that the left heat sealer 402 and the right heat sealer 403 move away from each other to separate; when the left heat sealer 402 and the right heat sealer 403 are clamping, the clamping spring 407 is compressed, and the distance between the right heat sealer 403 sliding along the linear guide rod 404 and the abutment plate 406 is reduced. At this time, the clamping force is provided by the clamping spring 407.

[0044] The bag cutting cylinder 411 is fixed on the heat sealing bracket 401 and is located on the side of the right heat sealer 403 away from the left heat sealer 402. The cutter 412 is connected to the piston rod of the bag cutting cylinder 411. There are gaps in the middle of both heat sealers. When the two heat sealers clamp each other, the piston rod of the bag cutting cylinder 411 extends, driving the cutter 412 to pass through the middle of the right heat sealer 403 and then penetrate into the left heat sealer 402, thereby separating the packaging bag from the packaging film 9, realizing the simultaneous heat sealing of the top of the packaging bag and the bottom of the next packaging bag.

[0045] A material supporting plate 413 is arranged at the top of the heat sealer. The material supporting plate 413 is arranged at one end where the heat sealers face each other. The material supporting plate 413 is inclined. The distance between the two material supporting plates 413 gradually increases from bottom to top. When the two heat sealers are attached, the two material supporting plates 413 form an inverted triangular shape; when the material is input from the blanking pipe 202, the two heat sealers are attached. The material supporting plate 413 below the packaging bag can provide a supporting force when the material falls into the packaging bag. After the blanking is completed, the two heat sealers open, and the packaging bag moves downward.

[0046] The working process of the first embodiment is as follows:

[0047] After passing through the collar bag former 201, the packaging film 9 is wound around the blanking roller. The side sealing device heat seals the side edges of the packaging film 9 to form a cylindrical shape. The conveyor belts 301 on both sides of the blanking pipe 202 clamp the packaging film 9 on the blanking pipe 202 and convey it downward, so that the packaging film 9 is continuously pulled out from the packaging film roll 5 and enters the collar bag former 201. When forming the first packaging bag, the heat sealing and bag cutting assembly 4 first heat seals the bottom of the packaging bag. The material is input into the packaging bag from the blanking pipe 202. Subsequently, the packaging bag continues to move downward. At this time, the heat sealing and bag cutting assembly 4 then heat seals the top of the packaging bag and separates the packaging bag from the upper packaging film 9 through the cutter 412. Since the cutter 412 cuts from the middle of the heat seal, one heat seal can simultaneously complete the sealing of the top of the packaging bag and the bottom of the next packaging bag.

[0048] Second Embodiment:

[0049] A vertical packaging machine, as Figure 10 shown, is different from the first embodiment in that an installation shaft 6 is provided on the frame 8 and located between the film feeding assembly and the bag forming assembly 2. A needle roller 7 is rotatably connected to the installation shaft 6. A plurality of needle rollers 7 are provided and arranged along the length direction of the installation shaft 6. When the packaging film 9 passes through the needle roller 7, it will contact the needle roller 7 and drive the needle roller 7 to rotate. When the needle roller 7 rotates, the thorn needles on the needle roller 7 will penetrate the packaging film 9 to punch holes, and then the packaging film 9 enters the bag forming assembly 2.

[0050] The parts not described above are the same as those in the first embodiment and will not be elaborated here.

[0051] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical packaging machine, characterized in that: The invention comprises a frame, on which are arranged: The film feeding assembly comprises a film threading shaft, on which the packaging film is sleeved; The bag forming assembly comprises a lapel bag forming device, wherein a feeding tube is arranged in the middle of the lapel bag forming device, and materials are input into the feeding tube from the top of the feeding tube. A side sealing device is arranged on one side of the feeding tube, and the side sealing device heat-seals the side edge of the packaging film after the packaging film passes through the lapel bag forming device; The film conveying assembly comprises conveyor belts respectively arranged on both sides of the blanking tube, and also comprises a clamping cylinder for driving the conveyor belt to move, wherein the clamping cylinder drives the conveyor belt to clamp on the side wall of the blanking tube, so that the conveyor belt conveys the packaging film downward; The heat-sealing bag cutting assembly is arranged below the blanking tube and comprises two heat-sealing heads which can clamp each other, a cutter being slidably connected inside the heat-sealing heads, and a bag cutting cylinder for driving the cutter to move.

2. The vertical packaging machine according to claim 1, characterized in that: The film feeding assembly also includes a film feeding motor, which drives the film threading shaft to rotate to feed the film through gear transmission, and also includes a floating roller slidably connected to the frame in the vertical direction. The packaging film passes around the bottom of the floating roller and then passes into the bag forming assembly. When the film feeding assembly transports the packaging film, the packaging film is pulled to drive the floating roller to move upward. A displacement sensor for detecting the moving distance of the floating roller is arranged on the frame. When the floating roller moves upward to a pre-determined distance, the film feeding motor drives the film threading shaft to rotate to feed the film.

3. The vertical packaging machine according to claim 1, characterized in that: The side sealing device comprises a side sealing cylinder and two side sealing heads. The side sealing cylinder drives one of the side sealing heads to move toward the other side sealing head, thereby clamping and heat-sealing the side edge of the packaging film. The side sealing heads are extended in the vertical direction.

4. The vertical packaging machine according to claim 1, characterized in that: A support block is arranged inside the conveyor belt, and the inner side of the conveyor belt facing the blanking tube is in contact with the support block.

5. The vertical packaging machine according to claim 1, characterized in that: The heat-sealing bag cutting assembly includes a heat-sealing bracket arranged on a frame and located below the blanking tube, the two heat-sealing heads are slidably connected to the heat-sealing bracket, the bag-cutting cylinder is fixed to the heat-sealing bracket, and the cutter is connected to the piston rod of the bag-cutting cylinder. When the two heat-sealing heads are clamped with each other, the bag-cutting cylinder drives the cutter to pass through the heat-sealing head on one side and then penetrate into the heat-sealing head on the other side, thereby cutting the packaging film.

6. The vertical packaging machine according to claim 5, characterized in that: A clamping spring is arranged between the heat sealing head and the heat sealing bracket on at least one side, and when the two heat sealing heads are clamped to each other, the clamping spring is compressed.

7. The vertical packaging machine according to claim 5, characterized in that: A supporting plate is arranged on the top of the heat sealing head. The supporting plate is arranged at one end of the heat sealing head facing each other. The supporting plate is arranged obliquely, and the distance between the two supporting plates gradually increases from bottom to top.

8. The vertical packaging machine according to claim 1, characterized in that: A mounting shaft is arranged on the frame and between the film feeding assembly and the bag forming assembly. A needle roller is rotatably connected to the mounting shaft. When the packaging film passes through the needle roller, it contacts the needle roller and drives the needle roller to rotate.

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