Bag making machine capable of automatically discharging defective products

Abstract

The utility model relates to the field of packaging machinery, in particular to a bag making machine capable of automatically discharging defective products. The bag making machine comprises a machine frame, a conveying belt, a discharging frame, a discharging belt, a hinge shaft, a driving piece, a material receiving box and the like. When the packaging bags on the conveying belt are detected to be defective products, the driving piece drives the discharging frame to turn over downwards, the defective products slide out along the discharging belt and fall into the receiving box, and automatic discharging of the defective products is achieved. According to the design, the traditional mode of taking defective products by manually stopping the machine is avoided, the production efficiency is improved, the maintenance frequency of equipment is reduced, and the continuity and the stability of production are ensured. In addition, by additionally arranging a baffle, a conveying frame, a sliding rail, a positioning assembly and other structures, the reliability and operation convenience of the equipment are further enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the field of packaging machinery, in particular to a bag making machine capable of automatically discharging defective products. BACKGROUND

[0002] The bag making machine is an indispensable important equipment in the packaging industry, which is widely used in food, medicine, daily chemical and other fields. Its main function is to make different specifications of packaging bags from various plastics or other materials. With the development of automation technology, modern bag making machines have achieved high automation and intelligence, greatly improving production efficiency and product quality. However, despite the continuous progress of technology, the bag making machine still faces some challenges in the actual production process, such as raw material quality problems, machine wear and failure, etc. These problems will cause a certain proportion of defective products, which seriously affects the quality of products and the economic benefits of enterprises.

[0003] At present, the mainstream methods for removing defective products on the market mainly include visual detection method and physical detection method. The visual detection method captures product images through high-resolution cameras and analyzes whether there are defects by using image processing software. This method can accurately judge whether the product is qualified. In actual application, it is usually necessary to stop after detecting defective products, and then manually remove the defective products before continuing production. Although these methods can reduce the number of defective products to some extent, frequent stoppage not only affects processing efficiency, but also may cause damage to equipment, increasing the maintenance cost of equipment. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to overcome the above technical problems, and provide a bag making machine capable of automatically discharging defective products

[0005] A bag making machine capable of automatically discharging defective products, comprising a rack, a conveyor belt arranged on the rack to convey packaging bags outward, a discharge rack arranged at the middle position of the conveyor belt, a discharge belt arranged on the discharge rack, a hinge shaft arranged on the side of the discharge rack away from the discharge end, the hinge shaft being rotatably connected to the rack, and the other end being a free end, and a driving member arranged at the bottom of the discharge rack to drive the discharge rack to turn downward around the hinge shaft.

[0006] By adopting the above technical scheme, when the user detects that the packaging bag on the conveyor belt is a defective product, the driving member is controlled to work, the driving member drives the discharge rack to turn downward, the defective packaging bag slides out along the discharge belt, the automatic discharge of the defective product is completed, instead of the traditional manual removal after stopping, which does not affect the processing equipment and can reduce the maintenance of the equipment.

[0007] Preferably, the driving member is a pneumatic cylinder, the cylinder body of the pneumatic cylinder is connected to the rack, and the piston rod of the pneumatic cylinder is connected to the bottom of the end of the discharge rack away from the hinge shaft.

[0008] Through the above technical scheme, when a user uses, the piston rod of the air cylinder is retracted, which drives the unloading frame to overturn downward around the hinge shaft, and facilitates automatic ejection of the defective products.

[0009] Preferably, a receiving box is arranged below the frame, and a conveying frame is arranged between the unloading frame and the receiving box, one end of the conveying frame is hinged to the receiving box, the other end of the conveying frame extends to below the unloading frame as a free end, a connecting shaft is arranged at the end of the conveying frame, pull rods are fixedly connected to both ends of the connecting shaft, the pull rods are fixedly connected to the bottom of the unloading frame, and the piston rod end of the air cylinder is hinged to the connecting shaft.

[0010] Through the above technical scheme, when a user uses, the piston rod of the air cylinder is retracted, which drives the unloading frame to overturn downward around the hinge shaft, and facilitates automatic ejection of the defective products.

[0011] Preferably, the receiving box is fixedly connected with rotating shafts on both sides thereof in a symmetrical manner, and the conveying frame is fixedly connected with sliding rails on both sides thereof.

[0012] Through the above technical scheme, when a user uses, the piston rod of the air cylinder is retracted, which drives the unloading frame to overturn downward around the hinge shaft, and facilitates automatic ejection of the defective products.

[0013] Preferably, the conveying frame is fixedly connected with baffles on both sides thereof perpendicular to the ejection direction.

[0014] Through the above technical scheme, when a user uses, the piston rod of the air cylinder is retracted, which drives the unloading frame to overturn downward around the hinge shaft, and facilitates automatic ejection of the defective products.

[0015] Preferably, the frame is provided with an ejection trolley, the bottom of the ejection trolley is provided with rollers, and the bottom of the side of the receiving box away from the conveying frame is hinged to the ejection trolley.

[0016] Through the above technical scheme, when a user uses, the piston rod of the air cylinder is retracted, which drives the unloading frame to overturn downward around the hinge shaft, and facilitates automatic ejection of the defective products.

[0017] Preferably, the bottom of the frame is fixedly connected with a guide rail, the rollers of the ejection trolley are slidingly connected to the guide rail, and the frame is provided with a positioning assembly for fixing the ejection trolley.

[0018] By adopting the above technical solution, when the user uses the material discharge cart, the rollers slide along the guide rail, which guides and limits the material discharge cart, making the material discharge cart slide more stably.

[0019] Preferably, the positioning component includes two guide columns fixedly connected to the frame, a return spring sleeved on the guide columns, a baffle plate fixedly connected to the top of the return spring, a stop block fixedly connected to the top of the baffle plate, an inclined surface on the stop block, and a pressure plate fixedly connected to the top of the receiving box, the pressure plate being used to apply pressure to the stop block.

[0020] By adopting the above technical solution, when the user slides the discharge carriage into the frame, the discharge carriage presses the return spring downward through the inclined surface of the stop block. After the discharge carriage slides past the stop block, the tension of the return spring pushes the stop block up. The stop block abuts against the side of the discharge carriage away from the receiving box, which is used to fix the discharge carriage and the receiving box. When the receiving box flips towards the discharge carriage, the pressure plate on the top of the receiving box presses the stop block downward. The stop block and the pressure plate press the return spring downward, and the pressure of the stop block on the discharge carriage disappears, which facilitates the discharge of material from the discharge carriage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0022] Figure 2 This is a cross-sectional view of an embodiment of this application;

[0023] Figure 3 yes Figure 2 Enlarged view of part A.

[0024] Reference numerals: 1. Frame; 11. Conveyor belt; 2. Unloading rack; 21. Unloading belt; 22. Hinge shaft; 23. Drive component; 231. Cylinder; 3. Conveyor frame; 31. Baffle; 32. Connecting shaft; 33. Tie rod; 34. Slide rail; 4. Receiving box; 41. Rotating shaft; 5. Unloading cart; 51. Roller; 52. Guide rail; 53. Positioning assembly; 531. Guide column; 532. Return spring; 533. Baffle plate; 534. Stop block. Detailed Implementation

[0025] The following will be combined with the appendix Figures 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. The described embodiments are only possible technical implementations of this utility model and not all possible implementations. Those skilled in the art can obtain other embodiments in conjunction with the embodiments of this utility model without creative effort, and these embodiments are also within the protection scope of this utility model.

[0026] This application provides a bag-making machine for automatically discharging defective products, referring to... Figure 1 andFigure 2 , including rack 1, the rack 1 is provided with a conveyor belt 11, the conveyor belt 11 is provided with a discharge frame 2, the discharge frame 2 is provided with a discharge belt 21, the discharge frame 2 is provided with a hinge shaft 22, the hinge shaft 22 is rotatably connected to the rack 1, the other end is a free end, the bottom of the discharge frame 2 is provided with a driving member 23 for driving the discharge frame 2 to turn down around the hinge shaft 22. When the defective product is detected on the conveyor belt 11, the driving member 23 is controlled to work, the driving member 23 drives the discharge frame 2 to turn down, the defective product bag slides out along the discharge belt 21, the automatic discharge of the defective product is completed, instead of the traditional manual removal, which does not affect the processing equipment and can reduce the maintenance frequency of the equipment.

[0027] Wherein, the driving member 23 is a cylinder 231, the cylinder body of the cylinder 231 is connected to the rack 1, the piston rod of the cylinder 231 is connected to the bottom of the discharge frame 2 away from the hinge shaft 22. The piston rod of the cylinder 231 is retracted, that is, the discharge frame 2 is driven to turn down around the hinge shaft 22, which is convenient for the automatic discharge of the defective product. The piston rod of the cylinder 231 is extended, which can push the discharge frame 2 to reset and restore to the initial state, preparing for the next operation.

[0028] A receiving box 4 is arranged below the rack 1, and a conveying frame 3 is arranged between the discharge frame 2 and the receiving box 4. One end of the conveying frame 3 is connected to the receiving box 4, and the other end is a free end extending below the discharge frame 2. The end of the conveying frame 3 is provided with a connecting shaft 32, and the two ends of the connecting shaft 32 are fixedly connected with pull rods 33. The pull rods 33 are fixedly connected to the bottom of the discharge frame 2, and the end of the piston rod of the cylinder 231 is connected to the connecting shaft 32. The piston rod of the cylinder 231 is retracted, which drives the conveying frame 3 to slide down, and at the same time drives the discharge frame 2 to turn down around the hinge shaft 22 through the connecting shaft 32 and the pull rods 33, which is convenient for the automatic transmission of the defective product to the conveying frame 3. The piston rod of the cylinder 231 is extended, which pushes the discharge frame 2 to reset and pushes the conveying frame 3 to turn up, which is convenient for the automatic sliding of the defective product plastic bag on the conveying frame 3 into the receiving box 4.

[0029] Wherein, the two sides of the conveying frame perpendicular to the discharge direction are fixedly connected with baffle plates 31. The baffle plates 31 can be made of metal plate or plastic plate, which have good rigidity and durability. The height of the baffle plates 31 can be adjusted according to the height of the packaging bag to ensure that the packaging bag does not fall from both sides during sliding and ensures that the packaging bag accurately slides into the receiving groove.

[0030] The pull rod 33 can be made of metal pipe or metal rod, with high strength and rigidity. The length of the pull rod 33 can be adjusted according to actual needs to ensure the synchronous movement between the blanking frame 2 and the conveying frame 3. The two ends of the pull rod 33 can be fixed on the blanking frame 2 and the connecting shaft 32 by welding or bolt connection, ensuring firm connection.

[0031] The piston rod end of the air cylinder 231 is hinged to the connecting shaft 32, and through the extension and retraction action of the air cylinder 231, the blanking frame 2 and the conveying frame 3 can be driven to move synchronously. The model and specification of the air cylinder 231 can be selected according to actual needs to ensure that the air cylinder 231 maintains good performance and reliability during long-term operation.

[0032] The symmetrical two sides of the receiving box 4 are fixedly connected with the rotating shaft 41, and the two sides of the conveying frame 3 are fixedly connected with the sliding rail 34. The rotating shaft 41 is inserted into the sliding rail 34 and can rotate in the sliding rail 34. When the air cylinder 231 drives the conveying frame 3 to overturn downward or upward, the rotating shaft 41 slides in the sliding rail 34. The cooperation of the rotating shaft 41 and the sliding rail 34 makes the sliding in the sliding groove more stable.

[0033] A discharging trolley 5 is arranged on the rack 1, the bottom of the discharging trolley 5 is provided with a roller 51, and the bottom of the side of the receiving box 4 away from the conveying frame is hinged to the discharging trolley 5. Manually overturning the receiving box 4, turning the receiving box 4 onto the discharging trolley 5, sliding the receiving box 4 out of the bottom of the rack 1 through the discharging trolley 5, facilitating the discharging of the receiving box 4, and saving labor for the workers.

[0034] Specifically, the discharging trolley 5 can be made of metal material, which has enough strength and rigidity. The bottom of the discharging trolley 5 is provided with a roller 51, which can be made of bearing steel, with low rolling resistance and long service life. The number and layout of the rollers 51 can be adjusted according to actual needs to ensure smooth sliding of the discharging trolley 5 without jamming.

[0035] The bottom of the receiving box 4 is hinged to the discharging trolley 5, and the hinge point can be a pin or a bolt connection to ensure firm connection. The opening of the receiving box 4 can be provided with a cover plate to prevent dust and debris from entering. The capacity of the receiving box 4 can be adjusted according to actual needs to adapt to different production scales.

[0036] The operation of manually overturning the receiving box 4 can be realized by a handle or a lever, which can be installed on the side or top of the receiving box 4 for easy operation. The length and layout of the handle or lever can be adjusted according to actual needs to ensure that the operator can easily overturn the receiving box 4.

[0037] The bottom of the rack 1 is fixedly connected with a guide rail 52, the rollers 51 of the discharge trolley 5 are slidingly connected to the guide rail 52, and the rack 1 is provided with a positioning assembly 53 for fixing the discharge trolley 5. The rollers 51 of the discharge trolley 5 slide along the guide rail 52, which plays a guiding and limiting role on the discharge trolley 5, so that the discharge trolley 5 slides more stably.

[0038] With reference to Figure 2 and Figure 3 , the positioning assembly 53 includes two guide columns 531 fixedly connected to the rack 1, a reset spring 532 sleeved on the guide column 531, a material blocking plate 533 fixedly connected to the top of the reset spring 532, and a blocking block 534 fixedly connected to the top of the material blocking plate 533, wherein an inclined surface is formed on the blocking block 534, and a pressing plate is fixedly connected to the top of the receiving box 4, which is used to press the blocking block 534. When the discharge trolley 5 slides into the rack 1, the discharge trolley 5 presses downward the reset spring 532 through the inclined surface of the blocking block 534, and when the discharge trolley 5 slides past the blocking block 534, the tension of the reset spring 532 lifts up the blocking block 534, which abuts against the side of the discharge trolley 5 away from the receiving box 4, thereby fixing the discharge trolley 5 and the receiving box 4. When the receiving box 4 is turned over to the discharge trolley 5, the pressing plate at the top of the receiving box 4 presses downward the blocking block 534, and the blocking block 534 and the material blocking plate 533 press downward the reset spring 532, so that the pressure of the blocking block 534 on the discharge trolley 5 disappears, facilitating the discharge of the discharge trolley 5.

[0039] The implementation principle of the embodiment is that: by arranging the discharging frame 2 and the driving member 23 on the rack 1, the discharging frame 2 can be quickly turned over when a defective product is detected, so that the defective product slides out along the discharging belt 21, avoiding the cumbersome operation of traditional manual removal, and greatly improving the production efficiency and the reliability of the equipment. At the same time, through reasonable design and material selection, the stability and durability of the discharging frame 2 are ensured, and the service life of the equipment is prolonged. In addition, by arranging the baffle 31, the falling of the packaging bag from both sides during the sliding process is effectively prevented, the accurate sliding of the packaging bag is ensured, and the rejection effect is improved. By arranging the receiving box 4 and the conveying frame 3 below the rack 1, the defective product can be slid from the discharging belt 21 to the conveying frame 3, and then slid from the conveying frame 3 to the receiving box 4, realizing the full-automatic collection and storage of the defective product. This design not only improves the production efficiency, but also reduces the manual intervention and labor intensity. At the same time, through reasonable structural design and material selection, the stability and reliability of the whole system are ensured, and the service life of the equipment is prolonged.

[0040] By setting the discharge trolley 5 and the guide rail 52 on the rack 1, the receiving box 4 can be easily slid out from the bottom of the rack 1, facilitating the emptying and replacement of the receiving box 4. This design not only improves work efficiency, but also reduces manual intervention and labor intensity. At the same time, through reasonable structural design and material selection, the stability and reliability of the entire system are ensured, and the service life of the equipment is prolonged. The setting of the positioning assembly 53 makes the discharge trolley 5 more stable during sliding, avoiding safety hazards caused by unstable sliding.

[0041] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A bag making machine with automatic discharge of defective products, characterized in that: The utility model provides a bagging machine, including frame (1), frame (1) is provided with the conveyer (11) that will bagging bag export outward, frame (1) is located in the middle position of conveyer (11) is provided with the unloading frame (2), unloading frame (2) is provided with unloading belt (21), the side of unloading frame (2) away from the discharge end is provided with hinged shaft (22), hinged shaft (22) is rotatably connected on frame (1), and the other end is a free end, and the bottom of unloading frame (2) is provided with the drive (23) of driving unloading frame (2) to turn down around its hinged shaft (22).

2. The bag making machine with automatic discharge of defective products according to claim 1, characterized in that: The drive (23) is a cylinder (231), the cylinder body of cylinder (231) is hinged to the frame (1), and the piston rod of cylinder (231) is hinged to the bottom of the end of the unloading frame (2) away from the hinged shaft (22).

3. The bag making machine with automatic discharge of defective products according to claim 2, characterized in that: The bottom of the frame (1) is provided with a receiving box (4), and the frame (1) is located between the unloading frame (2) and the receiving box (4). The receiving box (4) is rotatably connected to the unloading frame (2) and the receiving box (4). The other end of the receiving box (4) extends to the bottom of the unloading frame (2). The end of the receiving box (4) is provided with a connecting shaft (32). The two ends of the connecting shaft (32) are fixedly connected with a pull rod (33). The pull rod (33) is fixedly connected to the bottom of the unloading frame (2). The piston rod end of the cylinder (231) is hingedly connected to the connecting shaft (32).

4. The bag making machine of claim 3, wherein: The receiving box (4) is symmetrically fixedly connected with a rotating shaft (41) on both sides. The receiving box (4) is rotatably connected with a sliding rail (34) on both sides. The rotating shaft (41) is inserted into the sliding rail (34) and can rotate in the sliding rail (34).

5. The bag making machine of claim 3, wherein: The receiving box (4) is rotatably connected with a sliding rail (34) on both sides. The receiving box (4) is rotatably connected with a sliding rail (34) on both sides. The rotating shaft (41) is inserted into the sliding rail (34) and can rotate in the sliding rail (34).

6. The bag making machine with automatic discharge of defective products according to claim 3, characterized in that: The frame (1) is provided with a discharge vehicle (5). The bottom of the discharge vehicle (5) is provided with a roller (51). The bottom of the receiving box (4) away from the transmission frame is hingedly connected to the discharge vehicle (5).

7. The bag making machine with automatic discharge of defective products according to claim 6, characterized in that: The bottom of the frame (1) is fixedly connected with a guide rail (52). The roller (51) of the discharge vehicle (5) is slidingly connected to the guide rail (52). The frame (1) is provided with a positioning assembly (53) for fixing the discharge vehicle (5).

8. The bag making machine of claim 7, wherein: The positioning assembly (53) includes two guide columns (531) fixedly connected to the frame (1). A return spring (532) is sleeved on the guide column (531). The top of the return spring (532) is fixedly connected with a blocking plate (533). The top of the blocking plate (533) is fixedly connected with a stop block (534). An inclined surface is formed in the stop block (534). The top of the receiving box (4) is fixedly connected with a pressing plate for pressing the stop block (534).

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