Automatic cutting packaging machine

Abstract

The present invention discloses an automatic cutting and packaging machine. The present invention has a reasonable structural design. The weight meter is electrically connected to the lifting cylinder and the cutter drive device. After the weight meter detects that the material on the receiving plate reaches the specified weight, the corresponding control signal is sent to the lifting cylinder and the cutter drive device. Then the cutter drive device drives the cutter to cut the material output by the discharge hole, so that the cut material is completely independent of the receiving plate. Finally, the lifting rod of the lifting cylinder moves downward to make the receiving plate lose the support of the lifting rod. Since the receiving plate that loses the support of the lifting rod will rotate around the horizontal support shaft and then tilt downward, the material on the receiving plate will slide downward along the inclined surface to the conveying mechanism under the action of gravity, and the conveying mechanism will convey the material falling from the receiving plate to the packaging mechanism for packaging. The workload of the operator is greatly reduced and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging machines, in particular to an automatic cutting packaging machine. Background Art

[0002] After being processed by kneading machines and other equipment, materials such as BMC (bulk molding compound) usually need to be cut into several portions of specified weight, and then these portions of specified weight are packaged one by one and finally handed over to customers.

[0003] In the prior art, since customers have requirements for the weight of a package of materials, after the materials are output from the kneading machine and other equipment, the cutter installed at the discharge hole of the kneading machine and other equipment will cut the materials accordingly at the specified time, so that the weight of each piece of material cut out is the same. The cut materials are then bagged and packaged one by one, and finally handed over to the customer.

[0004] However, since kneading machines and other equipment generally output materials from the discharge hole through a spiral auger, the structure is relatively simple and the precision is relatively low. Therefore, the materials output will have certain density differences, volume differences and other problems. As a result, even if the corresponding cutting is carried out according to the prescribed time, the weight of each section of the cut material is different and has a large difference, which cannot meet the needs of customers.

[0005] In order to eliminate this difference, the existing technology is to weigh the materials after cutting and packaging. If the weight is insufficient or too much, the bag will be opened. If it is too much, the excess material will be cut out and taken out. If it is too little, a new part will be cut and put in.

[0006] The above-mentioned prior art has the disadvantages of frequently adding or reducing the packaged materials, which greatly increases the workload of the operators and reduces the production efficiency. Summary of the invention

[0007] The purpose of the present invention is to provide an automatic cutting and packaging machine to solve the technical problem in the prior art that the packaged materials are frequently added or reduced, which greatly increases the workload of operators and reduces production efficiency.

[0008] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides an automatic cutting packaging machine, including a discharging mechanism, at least one cutting mechanism is arranged in front of the discharging mechanism, the cutting mechanism includes a baffle and a cutter and a cutter driving device respectively arranged on the front and rear sides of the baffle, the baffle is provided with a discharging hole and a first rotating shaft rotatably assembled beside the discharging hole, a feeding pipeline is connected between the discharging hole and the discharging mechanism, the cutter driving device is connected to the cutter through the first rotating shaft, and the cutter can cut the material output by the discharging hole; a weighing mechanism is arranged at the front and lower part of the discharging hole, the weighing mechanism includes a support frame and a receiving plate arranged on the support frame, and the left and right sides of the support frame have a A horizontal support shaft extending forward and backward is provided above one side of the middle, and a conveying mechanism is provided below the other side; the horizontal support shaft is rotatably matched with one side of the receiving plate, a lifting cylinder is provided below the middle part of the support frame, and a lifting rod extending vertically upward is provided on the top of the lifting cylinder, and the top of the lifting rod is supported and matched with the bottom surface of the middle part of the receiving plate, and the lifting of the lifting rod can drive the receiving plate to rotate around the horizontal support shaft; the weighing mechanism also includes a weight meter that can weigh the material on the receiving plate, and the weight meter is electrically connected to the lifting cylinder and the cutter drive device, and the conveying mechanism can transport the material falling from the receiving plate to the packaging mechanism located next to the conveying mechanism for packaging.

[0009] Furthermore, the cutter drive device includes a first transmission wheel, a second transmission wheel, and a transmission belt. The axial directions of the first transmission wheel and the second transmission wheel extend forward and backward. The first transmission wheel and the second transmission wheel are distributed left and right. The left and right ends of the transmission belt are respectively matched with the first transmission wheel and the second transmission wheel for transmission. The middle part of the first transmission wheel is connected and fixed to the rear end of the first rotating shaft, the middle part of the second transmission wheel is connected and fixed to the front end of the second rotating shaft, and the rear end of the second rotating shaft is connected to the first motor through a reduction box.

[0010] Furthermore, a round rod extending forward and backward is provided on the bottom surface of the middle part of the receiving plate, and the top of the lifting rod is supported and cooperated with the round rod; a first frame is provided below the weighing mechanism, and the weight meter is arranged between the support frame and the first frame, and the weight meter can weigh the support frame; at least one support rod extending upward is provided on the front side of the first frame, and a rotatable rotating wheel is provided on the top of the support rod, the axial direction of the rotating wheel extends left and right, and the outer circumference of the rotating wheel contacts and cooperates with the front side surface of the receiving plate.

[0011] Furthermore, the conveying mechanism includes a second frame and a first conveyor belt arranged on the second frame, and the length of the first conveyor belt extends obliquely along the upper front; a transition plate is provided at the rear lower end of the first conveyor belt, and one end of the transition plate extends obliquely upward to the lower side of the receiving plate away from the horizontal support shaft, and the front upper end of the first conveyor belt is close to the packaging mechanism so that the material on the first conveyor belt can enter the packaging mechanism.

[0012] Furthermore, the packaging mechanism includes a third frame and a second conveyor belt arranged on the third frame, the length of the second conveyor belt extends forward and backward, the rear end of the second conveyor belt is close to the first conveyor belt and can receive materials conveyed forward by the first conveyor belt, and the front upper end of the first conveyor belt is provided with a first photoelectric sensor, and the first photoelectric sensor can detect whether the material is in place; the left and right sides of the rear end of the second conveyor belt are respectively provided with guide plates fixed to the third frame, the rear upper side of the guide plate is provided with an inclined wall, and the rear lower side of the guide plates on the left and right sides are provided with guide rods extending left and right, and the front lower side of the guide rod is sequentially provided with a rotating guide roller and a winding shaft rotatably arranged on the third frame, and a plastic bag film can be rolled up on the winding shaft.

[0013] Furthermore, two groups of upper edge traction wheel groups distributed frontward and rearward are provided in front of the guide plates on the left and right sides, an upper edge hot melt group is provided between the two groups of upper edge traction wheel groups, and the upper edge traction wheel group and the upper edge hot melt group are arranged above the second conveyor belt; the upper edge traction wheel group includes a second motor and a mounting block distributed leftward and right, an active traction wheel is provided at the bottom of the second motor and can drive the active traction wheel to rotate, a driven traction wheel is provided at the bottom of the mounting block, the driven traction wheel can be pressed against the active traction wheel and drive the upper edge of the plastic bag film to move forward, and the upper edge hot melt group can hot-melt the upper edge of the plastic bag film.

[0014] Furthermore, the upper edge hot melt group includes a fixed block and a fixed shaft arranged on the left and right sides of the fixed block, the axial direction of the fixed shaft extends forward and backward, the fixed shafts on the left and right sides are respectively rotatably assembled with the tops of the two connecting blocks, and the bottoms of the two connecting blocks are respectively provided with horizontal hot melt blocks, and the horizontal hot melt blocks on the left and right sides can hot melt the upper edge of the plastic bag film; the upper edge traction wheel group and the upper edge hot melt group are connected to the top of the mounting bracket, and the bottom of the mounting bracket is connected to the third frame on the outside of the second conveyor belt.

[0015] Furthermore, a vertical edge hot melt group is provided in front of the two groups of upper edge traction wheel groups, and the vertical edge hot melt group includes two vertical fixed columns distributed along the left and right, and the two vertical fixed columns are respectively arranged on the third frame on the left and right sides of the second conveyor belt, and two guide rods extending along the left and right are connected between the two vertical fixed columns, and the two guide rods are distributed up and down; two vertical sliding blocks are connected between the two guide rods, and vertical hot melt blocks are respectively provided on the opposite sides of the two vertical sliding blocks, and the two vertical sliding blocks can move away from and approach each other along the guide rods, so that the vertical hot melt blocks can hot-melt the vertical edges of the plastic bag film.

[0016] Furthermore, the two vertical hot-melt blocks are respectively provided with a first vertical groove and a second vertical groove on the opposite sides thereof, and a vertical tool whose length extends up and down is provided in the first vertical groove, and the vertical tool can enter the second vertical groove; movable holes are respectively provided at the upper and lower ends of the vertical sliding block where the vertical tool is located, and a vertically extending secondary push rod is provided between the vertical sliding block where the vertical tool is located and the adjacent vertical fixed column, and connecting rods are respectively provided at the upper and lower ends of the secondary push rod, which pass through the spring and the movable hole in sequence and are connected to the upper and lower ends of the vertical tool; first driving cylinders are respectively provided on the two vertical fixed columns, and one of the two first driving cylinders is connected to the vertical sliding block, and the other is connected to the secondary push rod.

[0017] Furthermore, a movable brush mechanism and a fixed brush mechanism are sequentially arranged in front of the vertical edge hot melt group, the movable brush mechanism includes two second driving cylinders distributed along the left and right sides, and the two second driving cylinders are respectively arranged on the third frame on both sides of the second conveyor belt; a first brush is respectively arranged on the opposite side of the two second driving cylinders, and the two second driving cylinders can push the first brushes on the left and right sides to approach each other to discharge the gas in the vertical edge of the plastic bag film; the fixed brush mechanism includes a brush fixing shell and a second brush arranged in the brush fixing shell, and the second conveyor belt passes forward through the bottom of the brush fixing shell to discharge the internal gas of the plastic bag film; a second photoelectric sensor is also arranged near the vertical edge hot melt group, the second photoelectric sensor can detect materials, and the second photoelectric sensor is electrically connected to the first driving cylinder and the second driving cylinder.

[0018] In summary, the technical solution of the present invention has the following beneficial effects: the structural design of the present invention is reasonable, and the weight meter is electrically connected to the lifting cylinder and the cutter drive device, so that after the weight meter detects that the material on the receiving plate reaches the specified weight, the corresponding control signal is sent to the lifting cylinder and the cutter drive device, and then the cutter drive device drives the cutter to cut the material output by the discharge hole, so that the cut material is completely independent of the receiving plate, and finally the lifting rod of the lifting cylinder moves downward, so that the receiving plate loses the support of the lifting rod. Since the receiving plate that loses the support of the lifting rod will rotate around the horizontal support shaft and then tilt downward, the material on the receiving plate will slide downward along the inclined surface to the conveying mechanism under the action of gravity, and the conveying mechanism will transport the material falling from the receiving plate to the packaging mechanism for packaging. From this analysis, it can be seen that the present invention first weighs the weight of the material through a weight meter, and then cuts the material and packages it, so there is no need to add or reduce the material that has been packaged, which greatly reduces the workload of the operator and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention after removing the discharging mechanism;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention after removing the discharging mechanism and the packaging mechanism;

[0022] Figure 4 It is a schematic diagram of the first three-dimensional structure when the cutting mechanism and the weighing mechanism of the present invention cooperate with each other;

[0023] Figure 5 It is a schematic diagram of a second three-dimensional structure when the cutting mechanism and the weighing mechanism of the present invention cooperate with each other;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the weighing mechanism of the present invention;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the conveying mechanism and the packaging mechanism of the present invention when they cooperate;

[0026] Figure 8 It is a schematic diagram of a first three-dimensional structure of the packaging mechanism of the present invention;

[0027] Fig. 9 is a schematic diagram of a second three-dimensional structure of the packaging mechanism of the present invention;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the upper edge traction wheel group and the upper edge hot melt group of the present invention when they are matched;

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the vertical edge hot-melt group of the present invention;

[0030] Description of the accompanying drawings: 1-discharging mechanism, 2-cutting mechanism, 3-weighing mechanism, 301-support frame, 302-receiving plate, 3021-round rod, 303-horizontal supporting shaft, 304-lifting cylinder, 305-weight meter, 4-baffle, 401-discharging hole, 402-first rotating shaft, 403-feeding pipeline, 5-cutter, 6-cutter driving device, 601-first transmission wheel, 602-second transmission wheel, 6021-second rotating wheel Drive shaft, 603-transmission belt, 604-reduction box, 605-first motor, 7-material, 8-conveying mechanism, 801-second frame, 802-first conveyor belt, 803-transition plate, 804-first photoelectric sensor, 9-packaging mechanism, 901-third frame, 902-second conveyor belt, 903-guide plate, 9031-inclined wall, 904-guide rod, 905-rotating guide roller, 906-rolling shaft, 907-upper edge traction Guide wheel group, 9071-second motor, 9072-mounting block, 9073-active traction wheel, 9074-driven traction wheel, 908-upper edge hot melt group, 9081-fixed block, 9082-fixed shaft, 9083-connecting block, 9084-horizontal hot melt block, 909-vertical edge hot melt group, 9091-vertical fixed column, 9092-guide rod, 9093-vertical sliding block, 9094-vertical hot melt block, 9095-first Driving cylinder, 9096-secondary push rod, 9097-vertical tool, 9098-first vertical groove, 9099-second vertical groove, 9090-connecting rod, 910-mounting bracket, 10-first frame, 1001-support rod, 1002-rotating wheel, 11-movable brush mechanism, 1101-second driving cylinder, 1102-first brush, 12-fixed brush mechanism, 1201-brush fixing shell, 1202-second brush. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0032] In the present invention, for a clearer description, the following explanation is made: the observer faces the attached Figure 1For observation, the upper left side of the observer is set as the back, the lower right side of the observer is set as the front, the lower left side of the observer is set as the right, the upper right side of the observer is set as the left, the back of the observer is set as the top, and the front of the observer is set as the bottom. It should be pointed out that the terms "front end", "rear end", "left side", "right side", "middle", "top", "bottom" and the like in the text indicate the orientation or position relationship based on the orientation or position relationship set in the accompanying drawings, which is only for the convenience of clearly describing the present invention, and does not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", and "fourth" are only used for the purpose of clarifying or simplifying the description, and cannot be understood as indicating or implying relative importance or quantity.

[0033] See also Figures 1 to 11The present embodiment provides an automatic cutting packaging machine, including a discharging mechanism 1, at least one cutting mechanism 2 is arranged in front of the discharging mechanism 1, the cutting mechanism 2 includes a baffle 4 and a cutter 5 and a cutter driving device 6 respectively arranged on the front and rear sides of the baffle 4, a discharging hole 401 and a first rotating shaft 402 rotatably assembled beside the discharging hole 401 are arranged on the baffle 4, a material conveying pipeline 403 is connected between the discharging hole 401 and the discharging mechanism 1, the cutter driving device 6 is connected to the cutter 5 through the first rotating shaft 402, and the cutter 5 can cut the material 7 output by the discharging hole 401; a weighing mechanism 3 is arranged at the front and lower part of the discharging hole 401, the weighing mechanism 3 includes a support frame 301 and a receiving plate 302 arranged on the support frame 301, and the upper side of the left side and the right side of the support frame 301 is provided with a weighing mechanism 3, and the weighing mechanism 3 includes a support frame 301 and a receiving plate 302 arranged on the support frame 301. A horizontal support shaft 303 extending forward and backward is provided on one side, and a conveying mechanism 8 is provided at the bottom of the other side; the horizontal support shaft 303 is rotatably matched with one side of the receiving plate 302, a lifting cylinder 304 is provided at the bottom of the middle part of the support frame 301, and a lifting rod extending vertically upward is provided on the top of the lifting cylinder 304, and the top of the lifting rod is supported and matched with the bottom surface of the middle part of the receiving plate 302. The lifting of the lifting rod can drive the receiving plate 302 to rotate around the horizontal support shaft 303; the weighing mechanism 3 also includes a weight meter 305 that can weigh the material 7 on the receiving plate 302, and the weight meter 305 is electrically connected to the lifting cylinder 304 and the cutter driving device 6. The conveying mechanism 8 can convey the material 7 falling from the receiving plate 302 to the packaging mechanism 9 located next to the conveying mechanism 8 for packaging. Function: It is electrically connected to the lifting cylinder and the cutter drive device through the weight meter, so that after the weight meter detects that the material on the receiving plate reaches the specified weight, it sends a corresponding control signal to the lifting cylinder and the cutter drive device, and then the cutter drive device drives the cutter to cut the material output by the discharge hole, so that the cut material is completely independent of the receiving plate, and finally the lifting rod of the lifting cylinder moves downward to make the receiving plate lose the support of the lifting rod. Since the receiving plate that loses the support of the lifting rod will rotate around the horizontal support shaft and tilt downward, the material on the receiving plate will slide downward along the inclined surface to the conveying mechanism under the action of gravity, and the conveying mechanism will transport the material falling from the receiving plate to the packaging mechanism for packaging. From this analysis, it can be seen that the present invention first weighs the weight of the material through a weight meter, and then cuts the material and packages it, so there is no need to add or reduce the material that has been packaged, which greatly reduces the workload of the operator and improves production efficiency.

[0034] Specifically, the cutter drive device 6 includes a first transmission wheel 601, a second transmission wheel 602, and a transmission belt 603. The axial directions of the first transmission wheel 601 and the second transmission wheel 602 extend forward and backward, and the first transmission wheel 601 and the second transmission wheel 602 are distributed along the left and right sides. The left and right ends of the transmission belt 603 are respectively matched with the first transmission wheel 601 and the second transmission wheel 602 in transmission. The middle part of the first transmission wheel 601 is connected and fixed with the rear end of the first rotating shaft 402, the middle part of the second transmission wheel 602 is connected and fixed with the front end of the second rotating shaft 6021, and the rear end of the second rotating shaft 6021 is connected with the first motor 605 through the reduction box 604. Function: The first motor drives the reduction box, the second rotating shaft, the second transmission wheel, the transmission belt, the first transmission wheel, the first rotating shaft, and the cutter in sequence.

[0035] Specifically, a round rod 3021 extending forward and backward is provided on the bottom surface of the middle part of the receiving plate 302, and the top of the lifting rod is supported and cooperated with the round rod 3021; ​​a first frame 10 is provided below the weighing mechanism 3, and a weight meter 305 is arranged between the support frame 301 and the first frame 10, and the weight meter 305 can weigh the support frame 301; at least one support rod 1001 extending upward is provided on the front side of the first frame 10, and a rotatable rotating wheel 1002 is provided on the top of the support rod 1001, and the axial direction of the rotating wheel 1002 extends left and right, and the outer circumference of the rotating wheel 1002 contacts and cooperates with the front side surface of the receiving plate 302. Function: By setting the round rod, the support and tilting coordination between the receiving plate and the lifting rod can be smoother; the weight meter weighs the support frame, and the weight of the support frame itself is certain, so after the material of a specified weight is added to the support frame, the weight meter can also calculate the weight of the material on the support frame accordingly. Since the weight meter is a prior art, it will not be described here. Of course, the setting position or structure of the weight meter can also be other ways; the rotating wheel can limit the forward movement of the receiving plate on the one hand, and on the other hand, it can limit and reduce the friction force when the receiving plate rotates.

[0036] Specifically, the conveying mechanism 8 includes a second frame 801 and a first conveyor belt 802 arranged on the second frame 801, the length of the first conveyor belt 802 extends obliquely along the front upper side; a transition plate 803 is provided at the rear lower end of the first conveyor belt 802, one end of the transition plate 803 extends obliquely upward to the lower side of the receiving plate 302 away from the horizontal support shaft 303, and the front upper end of the first conveyor belt 802 is close to the packaging mechanism 9, so that the material 7 on the first conveyor belt 802 can enter the packaging mechanism 9. Function: through the transition plate, it is convenient for the material on the receiving plate to fall to the lower end of the first conveyor belt, and the first conveyor belt can drive the material to move forward to the higher end, and then reach the packaging mechanism for packaging.

[0037] Specifically, the packaging mechanism 9 includes a third frame 901 and a second conveyor belt 902 arranged on the third frame 901. The length of the second conveyor belt 902 extends forward and backward. The rear end of the second conveyor belt 902 is close to the first conveyor belt 802 and can receive the material 7 conveyed forward by the first conveyor belt 802. The front upper end of the first conveyor belt 802 is provided with a first photoelectric sensor 804, and the first photoelectric sensor 804 can detect whether the material 7 is in place; the left and right sides of the rear end of the second conveyor belt 902 are respectively provided with guide plates 903 fixed to the third frame 901, and the upper rear side of the guide plate 903 is provided with an inclined wall 9031, and the lower rear side of the guide plates 903 on the left and right sides is provided with guide rods 904 extending left and right, and the front lower side of the guide rod 904 is provided with a rotating guide roller 905 and a winding shaft 906 rotatably arranged on the third frame 901 in sequence, and a plastic bag film can be rolled up on the winding shaft 906. Function: After the first photoelectric sensor detects that the material on the first conveyor belt has reached the front upper end, it can send control information to the driving mechanism of the second conveyor belt, so that the material can move along the second conveyor belt to the set length, which is conducive to the work of other stations. The plastic bag film on the coil shaft is transmitted upward under the cooperation of the rotating guide roller and the rotating guide roller, and then under the guidance of the second conveyor belt and the inclined walls of the two guide plates, the plastic bag film forms a concave shape, and the material on the first conveyor belt enters the concave plastic bag film and moves forward under the transportation of the second conveyor belt.

[0038] Specifically, two groups of upper edge traction wheel groups 907 distributed along the front and back are provided in front of the guide plates 903 on the left and right sides, and an upper edge hot melt group 908 is provided between the two groups of upper edge traction wheel groups 907. The upper edge traction wheel group 907 and the upper edge hot melt group 908 are arranged above the second conveyor belt 902; the upper edge traction wheel group 907 includes a second motor 9071 and a mounting block 9072 distributed along the left and right sides. An active traction wheel 9073 is provided at the bottom of the second motor 9071 and can drive the active traction wheel 9073 to rotate. A driven traction wheel 9074 is provided at the bottom of the mounting block 9072. The driven traction wheel 9074 can be pressed against the active traction wheel 9073 and drive the upper edge of the plastic bag film to move forward. The upper edge hot melt group 908 can hot-melt the upper edge of the plastic bag film. Function: The second motor drives the active traction wheel to rotate, thereby cooperating with the driven traction wheel to press and drive the upper edge of the plastic bag film. The reason for setting two sets of upper edge traction wheel groups at the front and rear is that the rear set is used to pre-press the upper edge of the plastic bag film, otherwise it is inconvenient for the upper edge hot melt group to perform hot melting operation, and the front set is used to press the upper edge of the plastic bag film that has just been hot-melted together again to prevent it from detaching.

[0039] Specifically, the upper edge hot melt group 908 includes a fixed block 9081 and a fixed shaft 9082 arranged on the left and right sides of the fixed block 9081. The axial direction of the fixed shaft 9082 extends forward and backward. The fixed shafts 9082 on the left and right sides are respectively rotatably assembled with the tops of the two connecting blocks 9083. The bottoms of the two connecting blocks 9083 are respectively provided with horizontal hot melt blocks 9084. The horizontal hot melt blocks 9084 on the left and right sides can perform hot melt on the upper edge of the plastic bag film. The upper edge traction wheel group 907 and the upper edge hot melt group 908 are connected to the top of the mounting bracket 910. The bottom of the mounting bracket 910 is connected to the third frame 901 outside the second conveyor belt 902. Function: The two connecting blocks can rotate around the two fixed shafts respectively, so that the two horizontal hot melt blocks can be opened under the action of manpower, or can be hot melted under the action of gravity. The hot melt temperature can be about 140 degrees or other temperatures.

[0040] Specifically, a vertical edge hot-melt group 909 is provided in front of the two groups of upper edge traction wheel groups 907. The vertical edge hot-melt group 909 includes two vertical fixed columns 9091 distributed along the left and right sides. The two vertical fixed columns 9091 are respectively arranged on the third frame 901 on the left and right sides of the second conveyor belt 902. Two guide rods 9092 extending along the left and right sides are connected between the two vertical fixed columns 9091, and the two guide rods 9092 are distributed up and down; two vertical sliding blocks 9093 are connected between the two guide rods 9092, and vertical hot-melt blocks 9094 are respectively provided on the opposite sides of the two vertical sliding blocks 9093. The two vertical sliding blocks 9093 can move away from and approach each other along the guide rods 9092, so that the vertical hot-melt blocks 9094 can perform hot-melt on the vertical edge of the plastic bag film. Function: When the two vertical sliding blocks approach each other along the guide rods, they can perform hot-melt on the vertical edge of the plastic bag film, thereby completing the overall sealing of the plastic bag film.

[0041] Specifically, a first vertical groove 9098 and a second vertical groove 9099 are respectively provided on the opposite sides of the two vertical hot melt blocks 9094. A vertical tool 9097 extending in length up and down is provided in the first vertical groove 9098, and the vertical tool 9097 can enter the second vertical groove 9099; movable holes are respectively provided at the upper and lower ends of the vertical sliding block 9093 where the vertical tool 9097 is located, and a vertically extending secondary push rod 9096 is provided between the vertical sliding block 9093 where the vertical tool 9097 is located and the adjacent vertical fixed column 9091, and connecting rods 9090 are respectively provided at the upper and lower ends of the secondary push rod 9096, which pass through the spring and the movable hole in sequence and are connected to the upper and lower ends of the vertical tool 9097; first driving cylinders 9095 are respectively provided on the two vertical fixed columns 9091, and one of the two first driving cylinders 9095 is connected to the vertical sliding block 9093, and the other is connected to the secondary push rod 9096. Function: The two first driving cylinders drive the vertical sliding block and the secondary push rod to approach respectively, wherein the secondary push rod pushes the spring and the vertical sliding block in turn, so that the vertical hot-melt blocks on both sides contact first, and then the secondary push rod continues to push the connecting rod and the vertical cutter to cut into the second vertical groove, so that the vertical edge of the hot-melt plastic bag film is cut into front and back two parts (that is, the front and back two parts can be used as the front and back seals of the two plastic bags respectively), and the plastic bag where the material is located is separated.

[0042] Specifically, a movable brush mechanism 11 and a fixed brush mechanism 12 are sequentially arranged in front of the vertical edge hot melt group 909. The movable brush mechanism 11 includes two second driving cylinders 1101 distributed along the left and right sides. The two second driving cylinders 1101 are respectively arranged on the third frame 901 on both sides of the second conveyor belt 902; the two second driving cylinders 1101 are respectively provided with a first brush 1102 on the opposite sides. The two second driving cylinders 1101 can push the first brushes 1102 on the left and right sides to approach each other. To discharge the gas in the vertical edge of the plastic bag film; the fixed brush mechanism 12 includes a brush fixing shell 1201 and a second brush 1202 arranged in the brush fixing shell 1201, and the second conveyor belt 902 passes forward through the bottom of the brush fixing shell 1201 to discharge the internal gas of the plastic bag film; a second photoelectric sensor is also arranged near the vertical edge hot melt group 909, and the second photoelectric sensor can detect the material 7, and the second photoelectric sensor is electrically connected to the first driving cylinder 9095 and the second driving cylinder 1101. Function: After the second photoelectric sensor detects the material, the first driving cylinder and the second driving cylinder do not need to be started to avoid cutting or crushing the material in the plastic bag, and the second brush in the brush fixing shell can empty the gas in the plastic bag backwards, and then the second driving cylinder drives the first brush to discharge the gas in the vertical edge of the plastic bag film.

[0043] As a preferred embodiment, the discharging mechanism 1 is a kneading machine, and of course it can also be other discharging equipment. Two cutting mechanisms 2 are arranged in front of the discharging mechanism 1 and are distributed in sequence along the left and right directions. Function: There are two independent working production lines at the same time, which improves the working efficiency.

[0044] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An automatic cutting and packaging machine, comprising a discharging mechanism (1), characterized in that: At least one cutting mechanism (2) is provided in front of the discharge mechanism (1), the cutting mechanism (2) comprising a baffle (4), a cutter (5) and a cutter driving device (6) respectively arranged on the front and rear sides of the baffle (4), the baffle (4) being provided with a discharge hole (401) and a first rotating shaft (402) rotatably mounted beside the discharge hole (401), a material conveying pipeline (403) being connected between the discharge hole (401) and the discharge mechanism (1), the cutter driving device (6) being connected to the cutter (5) via the first rotating shaft (402), and the cutter (5) cutting the material (7) outputted from the discharge hole (401); a weighing mechanism (3) is provided at the front and lower part of the discharge hole (401), the weighing mechanism (3) comprising a support frame (301) and a receiving plate (302) arranged on the support frame (301), and one of the left and right sides of the support frame (301) being provided with a weighing mechanism (3) extending from front to back. A horizontal support shaft (303) extends from the receiving plate (302), and a conveying mechanism (8) is provided below the other side; the horizontal support shaft (303) is rotatably matched with one side of the receiving plate (302); a lifting cylinder (304) is provided below the middle part of the support frame (301); a lifting rod extending vertically upward is provided at the top of the lifting cylinder (304); the top of the lifting rod is supported and matched with the bottom surface of the middle part of the receiving plate (302); the lifting and lowering of the lifting rod drives the receiving plate (302) to rotate around the horizontal support shaft (303); the weighing mechanism (3) also includes a weight meter (305) for weighing the material (7) on the receiving plate (302); the weight meter (305) is electrically connected to the lifting cylinder (304) and the cutter driving device (6); the conveying mechanism (8) conveys the material (7) dropped from the receiving plate (302) to a packaging mechanism (9) located next to the conveying mechanism (8) for packaging; The cutter drive device (6) comprises a first transmission wheel (601), a second transmission wheel (602), and a transmission belt (603); the axial directions of the first transmission wheel (601) and the second transmission wheel (602) both extend forward and backward; the first transmission wheel (601) and the second transmission wheel (602) are distributed leftward and rightward; the left and right ends of the transmission belt (603) are respectively in transmission cooperation with the first transmission wheel (601) and the second transmission wheel (602); the middle part of the first transmission wheel (601) is connected and fixed to the rear end of the first rotating shaft (402); the middle part of the second transmission wheel (602) is connected and fixed to the front end of the second rotating shaft (6021); and the rear end of the second rotating shaft (6021) is connected to the first motor (605) via a reduction gear box (604); A round rod (3021) extending forward and backward is provided on the bottom surface of the middle part of the receiving plate (302), and the top of the lifting rod is supported and matched with the round rod (3021); a first frame (10) is provided below the weighing mechanism (3), and the weight meter (305) is arranged between the support frame (301) and the first frame (10), and the weight meter (305) weighs the support frame (301); at least one support rod (1001) extending upward is provided on the front side of the first frame (10), and a rotating wheel (1002) is provided on the top of the support rod (1001), the axial direction of the rotating wheel (1002) extends left and right, and the outer circumference of the rotating wheel (1002) contacts and matches with the front side surface of the receiving plate (302); The conveying mechanism (8) comprises a second frame (801) and a first conveyor belt (802) arranged on the second frame (801), the length of the first conveyor belt (802) extending obliquely along the upper front; a transition plate (803) is provided at the lower rear end of the first conveyor belt (802), one end of the transition plate (803) extending obliquely upward to below a side of the receiving plate (302) away from the horizontal support shaft (303), and the upper front end of the first conveyor belt (802) is close to the packaging mechanism (9) so that the material (7) on the first conveyor belt (802) enters the packaging mechanism (9).

2. The automatic cutting and packaging machine according to claim 1, characterized in that: The packaging mechanism (9) comprises a third frame (901) and a second conveyor belt (902) arranged on the third frame (901), the length of the second conveyor belt (902) extending forward and backward, the rear end of the second conveyor belt (902) close to the first conveyor belt (802) and receiving the material (7) conveyed forward by the first conveyor belt (802), and a first photoelectric sensor (804) is provided at the front upper end of the first conveyor belt (802), and the first photoelectric sensor (804) detects whether the material (7) is in place; Guide plates (903) fixed to the third frame (901) are respectively provided on the left and right sides of the rear end of the second conveyor belt (902); an inclined wall (9031) is provided on the upper rear side of the guide plate (903); guide rods (904) extending left and right are provided on the lower rear sides of the guide plates (903) on the left and right sides; a rotating guide roller (905) rotatably arranged on the third frame (901) and a winding shaft (906) are provided in sequence at the lower front side of the guide rods (904); a plastic bag film is rolled up on the winding shaft (906).

3. The automatic cutting and packaging machine according to claim 2, characterized in that: Two groups of upper edge traction wheel groups (907) are arranged in front of the guide plates (903) on the left and right sides and are distributed along the front and back. An upper edge hot melt group (908) is arranged between the two groups of upper edge traction wheel groups (907). The upper edge traction wheel groups (907) and the upper edge hot melt group (908) are arranged above the second conveyor belt (902). The upper edge traction wheel group (907) comprises a second motor (9071) and a mounting block (9072) distributed along the left and right sides. An active traction wheel (9073) is arranged at the bottom of the second motor (9071) and drives the active traction wheel (9073) to rotate. A driven traction wheel (9074) is arranged at the bottom of the mounting block (9072). The driven traction wheel (9074) and the active traction wheel (9073) are pressed and drive the upper edge of the plastic bag film to move forward. The upper edge hot melt group (908) performs hot melting on the upper edge of the plastic bag film.

4. The automatic cutting and packaging machine according to claim 3, characterized in that: The upper edge hot melt group (908) comprises a fixed block (9081) and fixed shafts (9082) arranged on the left and right sides of the fixed block (9081), the axial direction of the fixed shaft (9082) extending forward and backward, the fixed shafts (9082) on the left and right sides are respectively rotatably assembled with the tops of two connecting blocks (9083), the bottoms of the two connecting blocks (9083) are respectively provided with horizontal hot melt blocks (9084), and the horizontal hot melt blocks (9084) on the left and right sides perform hot melt on the upper edge of the plastic bag film; the upper edge traction wheel group (907) and the upper edge hot melt group (908) are connected to the top of the mounting bracket (910), and the bottom of the mounting bracket (910) is connected to the third frame (901) outside the second conveyor belt (902).

5. The automatic cutting and packaging machine according to any one of claims 3 to 4, characterized in that: A vertical edge hot-melt group (909) is provided in front of the two groups of upper edge traction wheel groups (907), and the vertical edge hot-melt group (909) comprises two vertical fixed columns (9091) distributed along the left and right sides, and the two vertical fixed columns (9091) are respectively arranged on the third frame (901) on the left and right sides of the second conveyor belt (902), and two guide rods (9092) extending along the left and right sides are connected between the two vertical fixed columns (9091), and the two guide rods (9092) are distributed up and down; two vertical sliding blocks (9093) are connected between the two guide rods (9092), and vertical hot-melt blocks (9094) are respectively provided on the opposite sides of the two vertical sliding blocks (9093), and the two vertical sliding blocks (9093) are separated from and approached to each other along the guide rods (9092), so that the vertical hot-melt blocks (9094) perform hot-melt on the vertical edge of the plastic bag film.

6. The automatic cutting and packaging machine according to claim 5, characterized in that: The two vertical hot melt blocks (9094) are provided with a first vertical groove (9098) and a second vertical groove (9099) on the opposite sides thereof. A vertical tool (9097) extending in length up and down is provided in the first vertical groove (9098). The vertical tool (9097) enters the second vertical groove (9099). The vertical sliding block (9093) where the vertical tool (9097) is located is provided with movable holes at the upper and lower ends thereof. The vertical sliding block (9093) where the vertical tool (9097) is located is connected to the adjacent A secondary push rod (9096) extending vertically is provided between the vertical fixed columns (9091), and the upper and lower ends of the secondary push rod (9096) are respectively provided with connecting rods (9090) which pass through the spring and the movable hole in sequence and are connected to the upper and lower ends of the vertical tool (9097); a first driving cylinder (9095) is respectively provided on the two vertical fixed columns (9091), and one of the two first driving cylinders (9095) is connected to the vertical sliding block (9093), and the other is connected to the secondary push rod (9096).

7. The automatic cutting and packaging machine according to claim 6, characterized in that: A movable brush mechanism (11) and a fixed brush mechanism (12) are sequentially arranged in front of the vertical edge hot melt group (909); the movable brush mechanism (11) comprises two second driving cylinders (1101) distributed along the left and right sides, and the two second driving cylinders (1101) are respectively arranged on the third frame (901) on both sides of the second conveyor belt (902); a first brush (1102) is respectively arranged on the opposite side of the two second driving cylinders (1101), and the two second driving cylinders (1101) push the first brushes (1102) on the left and right sides to move closer to each other. , so as to discharge the gas in the vertical edge of the plastic bag film; the fixed brush mechanism (12) comprises a brush fixing shell (1201) and a second brush (1202) arranged in the brush fixing shell (1201); the second conveyor belt (902) passes forward through the bottom of the brush fixing shell (1201) to discharge the internal gas of the plastic bag film; a second photoelectric sensor is also provided near the vertical edge hot melt group (909), the second photoelectric sensor detects the material (7), and the second photoelectric sensor is electrically connected to the first driving cylinder (9095) and the second driving cylinder (1101).

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