Full-automatic continuous drawing vacuum packaging machine

Abstract

The utility model relates to the related technical field of vacuum packaging machines, in particular to a full-automatic continuous drawing vacuum packaging machine which comprises a working table, a positioning frame is fixedly connected to the upper surface of the working table, a feeding assembly is fixedly connected to the upper surface of the positioning frame, and a loading assembly is fixedly connected to the upper surface of the feeding assembly. According to the full-automatic continuous stretching vacuum packaging machine, through the arrangement of the feeding assembly, bulk products in a storage box can be stacked at the position of a feeding pipe when the full-automatic continuous stretching vacuum packaging machine is used, in the feeding process, after a feeding cylinder drives a feeding groove to rotate to the position of the feeding pipe, at the moment, a second servo motor drives a material blocking plate to rotate through a round rod, and then the bulk products are conveyed to the feeding pipe; the bulk products in the feeding pipe can fall into the feeding groove, the feeding cylinder rotates again, and after the feeding groove with the bulk products is located under the feeding cylinder, the bulk products in the feeding groove automatically fall into the concave position of the film, and therefore automatic feeding operation is completed.

Description

Technical Field

[0001] The utility model relates to the technical field related to vacuum packaging machines, in particular to a full-automatic continuous stretching vacuum packaging machine. Background Art

[0002] A vacuum packaging machine automatically extracts air from a package and seals it after achieving a predetermined vacuum level. It can also refill with nitrogen or other mixed gases to complete the sealing process. There are many types of vacuum packaging machines, such as fully automatic stretch film vacuum packaging machines. These machines primarily use a forming mold to heat the film, which is then punched into the shape of a container. The packaged product is then placed into the formed lower film cavity for vacuum packaging. Currently, most packaged foods on the market are packaged using fully automatic stretch film vacuum packaging machines, a common packaging machine.

[0003] In the production process of existing fully automatic stretch film vacuum packaging machines, product loading is mostly done manually. The products are manually placed in the punched depressions of the film, and then the subsequent processes are completed. However, when loading some bulk products, such as melon seeds, peanuts and other foods, it is difficult to ensure that the amount added each time is the same. Compared with large, integral products, these bulk products are also difficult to grasp manually, which not only increases labor costs, but also reduces the output efficiency of the packaging machine. There is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a fully automatic continuous stretching vacuum packaging machine to solve the problem in the above background technology that it is difficult to ensure that the quantity in each package is the same when manually adding bulk products.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic continuous stretching vacuum packaging machine, comprising a workbench, a positioning frame fixedly connected to the upper surface of the workbench, a conveying trough opened on the upper surface of the positioning frame, a conveyor belt installed on the inner wall of the conveying trough, a cross-cutting device, a vacuum sealing device and a lower film forming device fixedly connected to the upper surface of the positioning frame, an electrical box fixedly connected to the back of the positioning frame, an upper film device installed on the front of the electrical box, a lower film device fixedly connected to the right side of the positioning frame, a connecting frame fixedly connected to the upper surface of the electrical box, an industrial control host fixedly connected to the bottom end of the connecting frame, a feeding assembly fixedly connected to the upper surface of the positioning frame, and the upper surface of the feeding assembly. The surface is fixedly connected with a loading assembly, and the feeding assembly includes a support frame, the front face of the support frame is fixedly connected with a first servo motor, the output end of the first servo motor is fixedly connected with a connecting rod, the inner wall of the support frame is fixedly connected with a positioning frame, the left and right inner walls of the positioning frame are fixedly connected with arc-shaped stop blocks, the inner wall of the positioning frame is rotatably connected with a feeding cylinder, a feeding trough is provided on the surface of the feeding cylinder, the inner bottom wall of the feeding trough is fixedly connected with a quantitative assembly, the upper surface of the support frame is fixedly connected with two feeding pipes, the front face of the feeding pipes is fixedly connected with two second servo motors, the output ends of the two second servo motors are fixedly connected with round rods, and the surfaces of the two round rods are fixedly connected with stop plates;

[0006] The feeding assembly includes a storage box, a circular through hole is opened on the upper surface of the storage box, a feeding hopper is fixedly connected to the position of the upper surface of the storage box corresponding to the circular through hole, and a guide block is fixedly connected to the inner bottom wall of the storage box;

[0007] The quantitative component includes a weight sensor, and the left and right inner walls of the feed trough are both provided with limit slots, and the inner walls of the two limit slots are slidably connected with a pressing plate.

[0008] Preferably, the position of the upper film device corresponds to the position of the vacuum sealing device, and the position of the lower film device corresponds to the position of the lower film forming device.

[0009] Preferably, the end of the connecting rod away from the first servo motor extends to the interior of the positioning frame and is fixedly connected to the center of the front surface of the feeding cylinder.

[0010] Preferably, the top end of the feed pipe is connected to the interior of the storage box, and the bottom end passes through the support frame and is connected to the interior of the positioning frame.

[0011] Preferably, the number of the feed troughs is set to six groups, the number of feed troughs in each group is two, and the positions of the feed troughs in each group correspond front to back, and the position of each group of feed troughs corresponds to the positions of the two feed pipes.

[0012] Preferably, the rear end of the round rod is rotatably connected to the inner rear wall of the rear feed pipe, and the baffles inside the two feed pipes are fixedly connected to the surfaces of the two round rods.

[0013] Preferably, the first servo motor, the second servo motor and the weight sensor are all electrically connected to the industrial control host.

[0014] Compared with the prior art, the beneficial effect of the present invention is that: the fully automatic continuous stretch vacuum packaging machine, through the setting of the feeding component, when in use, the bulk products in the storage box can be stacked at the feed tube position. During the feeding process, when the feeding cylinder drives the feeding chute to rotate to the feed tube position, the second servo motor drives the baffle plate to rotate through the round rod, so that the bulk products in the feed tube can fall into the feed chute. After the cylinder rotates again, so that the feed chute with the bulk products is in the directly lower position, the bulk products in the feed chute automatically fall into the depression on the film, thereby completing the automatic feeding operation, and after the bulk products enter the feed chute, it can drive the pressure plate to squeeze the weight sensor. When the weight detected by the weight sensor reaches the preset threshold, the second servo motor is automatically turned off by the industrial control host, so that the baffle plate returns to its original position, thereby preventing the bulk products in the feed tube from continuing to fall into the feed chute, completing the quantitative feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the front cross-section structure of the feed assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional split structure of the feed pipe of the utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the feeding cylinder of the utility model.

[0019] In the figure: 1. Workbench; 2. Positioning frame; 3. Conveyor belt; 4. Cross-cutting device; 5. Vacuum sealing device; 6. Lower film forming device; 7. Electrical box; 8. Upper film device; 9. Lower film device; 10. Connecting frame; 11. Industrial control host; 12. Feed assembly; 13. Loading assembly; 1201. Support frame; 1202. First servo motor; 1203. Connecting rod; 1204. Positioning frame; 1205. Arc-shaped material stop block; 1206. Feed cylinder; 1207. Feed trough; 1208. Feed pipe; 1209. Second servo motor; 1210. Round rod; 1211. Material stop plate; 1301. Storage box; 1302. Upper hopper; 1303. Guide block; 14. Quantitative assembly; 1401. Weight sensor; 1402. Press plate. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-4 The utility model provides a technical solution: a fully automatic continuous stretching vacuum packaging machine, comprising a workbench 1, a positioning frame 2 is fixedly connected to the upper surface of the workbench 1, a conveying trough is opened on the upper surface of the positioning frame 2, a conveyor belt 3 is installed on the inner wall of the conveying trough, a cross-cutting device 4, a vacuum sealing device 5 and a lower film forming device 6 are fixedly connected to the upper surface of the positioning frame 2, an electrical box 7 is fixedly connected to the back of the positioning frame 2, an upper film device 8 is installed on the front of the electrical box 7, a lower film device 9 is fixedly connected to the right side of the positioning frame 2, a connecting frame 10 is fixedly connected to the upper surface of the electrical box 7, an industrial control host 11 is fixedly connected to the bottom end of the connecting frame 10, a feeding assembly 12 is fixedly connected to the upper surface of the feeding assembly 12, a feeding assembly 13 is fixedly connected to the upper surface of the feeding assembly 12, and the feeding assembly 12 includes a supporting frame 1201, a supporting frame 1201 The front side is fixedly connected to a first servo motor 1202, the output end of the first servo motor 1202 is fixedly connected to a connecting rod 1203, the inner wall of the support frame 1201 is fixedly connected to a positioning frame 1204, the left and right inner walls of the positioning frame 1204 are fixedly connected to arc-shaped blocking blocks 1205, the inner wall of the positioning frame 1204 is rotatably connected to a feeding cylinder 1206, a feeding trough 1207 is provided on the surface of the feeding cylinder 1206, the inner bottom wall of the feeding trough 1207 is fixedly connected to a quantitative component 14, the upper surface of the support frame 1201 is fixedly connected to two feeding pipes 1208, the front side of the feeding pipe 1208 is fixedly connected to two second servo motors 1209, the output ends of the two second servo motors 1209 are fixedly connected to a round rod 1210, and the surfaces of the two round rods 1210 are fixedly connected to a blocking plate 1211;

[0022] The feeding assembly 13 includes a storage box 1301, a circular through hole is opened on the upper surface of the storage box 1301, a loading hopper 1302 is fixedly connected to the position of the upper surface of the storage box 1301 corresponding to the circular through hole, and a guide block 1303 is fixedly connected to the inner bottom wall of the storage box 1301;

[0023] The quantitative component 14 includes a weight sensor 1401 . The left and right inner walls of the feed trough 1207 are both provided with limit grooves, and the inner walls of the two limit grooves are slidably connected to a pressing plate 1402 .

[0024] Furthermore, the position of the upper film device 8 corresponds to the position of the vacuum sealing device 5, and the position of the lower film device 9 corresponds to the position of the lower film forming device 6. After the upper film device 8 coats the lower film after adding the bulk product, the vacuum sealing device 5 automatically completes the vacuum heat sealing process of the package.

[0025] Furthermore, the connecting rod 1203 extends from one end of the first servo motor 1202 to the interior of the positioning frame 1204 and is fixedly connected to the front center of the feed cylinder 1206. The first servo motor 1202 can drive the feed cylinder 1206 to rotate at a constant speed through the connecting rod 1203, thereby completing the automatic addition of bulk products through the feed trough 1207.

[0026] Furthermore, the top end of the feed pipe 1208 is connected to the interior of the storage box 1301, and the bottom end passes through the support frame 1201 and is connected to the interior of the positioning frame 1204. The bulk products in the feed pipe 1208 can automatically fall into the feed trough 1207 on the surface of the feed cylinder 1206.

[0027] Furthermore, the number of feed troughs 1207 is set to six groups, and the number of feed troughs 1207 in each group is two, and the positions of each group of feed troughs 1207 correspond front to back, and the position of each group of feed troughs 1207 corresponds to the positions of two feed pipes 1208. The six groups of feed troughs 1207 enable the feed cylinder 1206 to feed the film depression when one group of feed troughs 1207 is directly below it, and the uppermost feed trough 1207 feeds through the feed pipe 1208, thereby greatly improving the efficiency of automatic loading.

[0028] Furthermore, the rear end of the round rod 1210 is rotatably connected to the inner rear wall of the rear feed pipe 1208, and the baffle plates 1211 inside the two feed pipes 1208 are fixedly connected to the surfaces of the two round rods 1210. The two round rods 1210 respectively drive the two baffle plates 1211 to rotate downward, and the baffle plate 1211 at the lower position rotates downward first, so there will be no obstruction.

[0029] Furthermore, the first servo motor 1202, the second servo motor 1209 and the weight sensor 1401 are all electrically connected to the industrial control host 11. The industrial control host 11 can automatically open and close the first servo motor 1202 and the second servo motor 1209 through the signal transmitted by the weight sensor 1401, thereby completing the automatic quantitative loading operation.

[0030] Working principle: First, the lower film device 9 discharges the plastic film and shapes it through the lower film forming device 6, so that the film moves to the left on the conveyor belt 3, and bulk products are added to the upper feeding component 13, that is, the upper hopper 1302. The bulk products are guided by the guide block 1303 in the storage box 1301 and will accumulate above the two feed pipes 1208. At this time, the feed pipe 1208 is blocked by the baffle plate 1211, and the bulk products cannot flow downward. When the first servo motor 1202 drives the feed cylinder 1206 to rotate through the connecting rod 1203, so that the feed trough 1207 is aligned with the upper feed pipe 1208 position, the second servo motor 1209 is started, and drives the baffle plate 1211 to rotate through the two round rods 1210, so that the bulk products flow from the feed pipe 1208 to the feed trough 1207. Due to the pressure plate 140 in the feed trough 1207 2 can slide up and down, so when the weight of the bulk product drives the pressure plate 1402 to squeeze the weight sensor 1401 and reaches the preset threshold, the industrial control host 11 automatically turns off the second servo motor 1209, so that the round rod 1210 drives the baffle plate 1211 to block the feed pipe 1208 again, thereby ensuring that quantitative feeding operation can be performed every time. When there are bulk products in the feed trough 1207, the film moves to the bottom of the feed component 12, and the feed cylinder 1206 continues to rotate until the feed trough 1207 rotates to the directly lower position. At this time, the bulk products in the feed trough 1207 automatically fall into the depression on the film, thereby completing the automatic feeding operation. The film with bulk products continues to move to the left and is coated by the film-applying device 8, heat-sealed by the vacuum sealing device 5, and then cross-cut and packaged by the cross-cutting device 4 for output.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic continuous stretching vacuum packaging machine, comprising a workbench (1), wherein the upper surface of the workbench (1) is fixedly connected to a positioning frame (2), a conveying trough is provided on the upper surface of the positioning frame (2), a conveyor belt (3) is installed on the inner wall of the conveying trough, a cross-cutting device (4), a vacuum sealing device (5) and a lower film forming device (6) are fixedly connected to the upper surface of the positioning frame (2), an electrical box (7) is fixedly connected to the back of the positioning frame (2), an upper film device (8) is installed on the front of the electrical box (7), a lower film device (9) is fixedly connected to the right side of the positioning frame (2), a connecting frame (10) is fixedly connected to the upper surface of the electrical box (7), an industrial control host (11) is fixedly connected to the bottom end of the connecting frame (10), a feeding assembly (12) is fixedly connected to the upper surface of the positioning frame (2), and a feeding assembly (13) is fixedly connected to the upper surface of the feeding assembly (12), characterized in that: The feeding assembly (12) comprises a support frame (1201), the front surface of the support frame (1201) is fixedly connected to a first servo motor (1202), the output end of the first servo motor (1202) is fixedly connected to a connecting rod (1203), the inner wall of the support frame (1201) is fixedly connected to a positioning frame (1204), the left and right inner walls of the positioning frame (1204) are fixedly connected to arc-shaped blocking blocks (1205), the inner wall of the positioning frame (1204) is rotatably connected to a feeding cylinder (1206), and the feeding cylinder (1206) is fixedly connected to the inner wall of the positioning frame (1204). A feed trough (1207) is provided on the surface of the cylinder (1206), a quantitative assembly (14) is fixedly connected to the inner bottom wall of the feed trough (1207), two feed pipes (1208) are fixedly connected to the upper surface of the support frame (1201), two second servo motors (1209) are fixedly connected to the front of the feed pipes (1208), the output ends of the two second servo motors (1209) are fixedly connected to round rods (1210), and the surfaces of the two round rods (1210) are fixedly connected to material blocking plates (1211); The feeding assembly (13) comprises a material storage box (1301), a circular through hole is formed on the upper surface of the material storage box (1301), a feeding hopper (1302) is fixedly connected to a position on the upper surface of the material storage box (1301) corresponding to the circular through hole, and a guide block (1303) is fixedly connected to the inner bottom wall of the material storage box (1301); The quantitative component (14) includes a weight sensor (1401), and the left and right inner walls of the feed trough (1207) are both provided with limit slots, and the inner walls of the two limit slots are slidably connected to a pressing plate (1402).

2. The fully automatic continuous stretch vacuum packaging machine according to claim 1, characterized in that: The position of the upper film device (8) corresponds to the position of the vacuum sealing device (5), and the position of the lower film device (9) corresponds to the position of the lower film forming device (6).

3. The fully automatic continuous stretch vacuum packaging machine according to claim 1, characterized in that: One end of the connecting rod (1203) away from the first servo motor (1202) extends to the interior of the positioning frame (1204) and is fixedly connected to the center of the front surface of the feeding cylinder (1206).

4. The fully automatic continuous stretch vacuum packaging machine according to claim 1, characterized in that: The top end of the feed pipe (1208) is connected to the interior of the storage box (1301), and the bottom end passes through the support frame (1201) and is connected to the interior of the positioning frame (1204).

5. The fully automatic continuous stretch vacuum packaging machine according to claim 1, characterized in that: The number of the feed troughs (1207) is set to six groups, the number of the feed troughs (1207) in each group is two, and the positions of the feed troughs (1207) in each group correspond to each other, and the position of each group of feed troughs (1207) corresponds to the positions of the two feed pipes (1208).

6. The fully automatic continuous stretch vacuum packaging machine according to claim 1, characterized in that: The rear end of the round rod (1210) is rotatably connected to the inner rear wall of the rear feed pipe (1208), and the baffle plates (1211) inside the two feed pipes (1208) are fixedly connected to the surfaces of the two round rods (1210).

7. The fully automatic continuous stretch vacuum packaging machine according to claim 1, characterized in that: The first servo motor (1202), the second servo motor (1209) and the weight sensor (1401) are all electrically connected to the industrial control host (11).

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