A plastic master batch finished product weighing and bagging machine
The design of the plastic masterbatch finished product weighing and bagging machine solves the problems of low sealing and weighing efficiency during the bagging process, realizes automatic weighing and sealing integration, and improves bagging efficiency and masterbatch quality stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZAOYANG SHUANGXINGWEIYE PLASTIFY CO
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-30
AI Technical Summary
In the existing technology, the bagging process of plastic masterbatch has problems such as insufficient sealing, which leads to air ingress, moisture and oxidation of the masterbatch, low sealing efficiency, and low bagging efficiency after weighing.
Design a plastic masterbatch finished product weighing and bagging machine, including a material box, weighing platform, discharge pipe, spring, scale column and conveying device. Weighing and discharging are controlled by the scale column, and the opening and closing of the discharge pipe are controlled by the motor to realize the integration of weighing and bagging.
It enables automatic weighing and sealing during the bagging process, preventing air from entering, improving bagging efficiency and sealing performance, and avoiding moisture and oxidation of the masterbatch.
Smart Images

Figure CN224427926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic masterbatch processing technology, and in particular to a weighing and bagging machine for finished plastic masterbatch products. Background Technology
[0002] Plastic masterbatch is an essential additive in the plastic molding process. After processing, plastic masterbatch needs to be bagged and stored. To facilitate subsequent use, plastic masterbatch is usually packaged in various sizes, with each size bag containing a fixed weight of masterbatch.
[0003] In the prior art, such as the semi-sealed bagging device for plastic masterbatch disclosed in Chinese Patent Publication No. CN110451024B, the structure includes a support frame and a feeding chamber, etc. The feeding chamber is set in the middle of the top of the support frame. The present invention has the following beneficial effects: In order to solve the problems of insufficient sealing of the packaging bag during the bagging process in the prior art, the opening of the packaging bag is too large, air is injected, and the bag is often sealed manually, resulting in a large amount of air being injected into the bag, the masterbatch becoming damp, the packaging bag volume increasing, and some masterbatch being oxidized and deteriorated by oxygen in the air, and the low sealing efficiency, a semi-sealed bagging mechanism, a packaging bag pushing mechanism, and a packaging bag heat-sealing conveying and detection mechanism are designed. The packaging bag pushing mechanism opens and pushes the packaging bag to cooperate with the semi-sealed bagging mechanism to complete the filling of plastic masterbatch, and the packaging bag heat-sealing conveying and detection mechanism completes the detection and sealing process, thereby achieving the effect of semi-sealed masterbatch bagging without a large amount of air injection, and automated, high-efficiency and fast sealing of the bag opening.
[0004] While the aforementioned patent can achieve a semi-sealed effect, the plastic masterbatch needs to be weighed before bagging to ensure that the weight of the plastic masterbatch inside each bag is the same. However, the processing efficiency of plastic masterbatch is reduced by weighing before bagging. Therefore, how to weigh the plastic masterbatch during the bagging process is an urgent problem to be solved. Utility Model Content
[0005] The purpose of this invention is to provide a plastic masterbatch weighing and bagging machine that weighs the plastic masterbatch during the bagging process.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a plastic masterbatch finished product weighing and bagging machine, including a material box and a weighing platform. A discharge pipe is fixedly connected to the bottom of the material box. A spring is fixedly connected to the top of the weighing platform. A placement plate is fixedly connected to the top of the spring. Scale columns are fixedly connected to both sides of the bottom of the placement plate. Scales are provided on the outside of the scale columns. A cavity is opened inside the weighing platform. The scale columns pass through the cavity to the bottom of the weighing platform. A horizontal plate is fixedly connected to one side of the weighing platform. A slot is opened inside the horizontal plate. A horizontal rod is engaged inside the slot. Locking rings are threaded to both ends of the horizontal rod. A conveying device is provided on the other side of the weighing platform. Weighing scales are provided on the outside of the scale columns.
[0007] By adopting the above technical solution, the weighing platform is set below the material box. The crossbar is snapped into the inside of the horizontal plate through a slot, and then the locking ring is threaded to the outside of the crossbar. After the locking ring contacts the horizontal plate, it will lock the crossbar, allowing the packaging bag to overlap the outside of the crossbar. Since the crossbar is set outside the weighing platform, it is convenient for workers to pick up and remove the packaging bag. Then, the packaging bag is placed in the placement plate on top of the weighing platform. The plastic masterbatch inside the material box is discharged through the discharge pipe and flows into the inside of the packaging bag. At this time, the spring will drive the placement plate to retract, and the scale column will move through the cavity inside the weighing platform. By observing the value of the weighing scale extending to the weighing platform, the weight of the plastic masterbatch inside the packaging bag can be determined. This device can weigh the plastic masterbatch during the bagging process, and the bagged plastic masterbatch can be transported by the conveying device, thus greatly improving the bagging efficiency of plastic masterbatch.
[0008] A further feature of this invention is that a motor is fixedly installed on the outside of the discharge pipe, a drive shaft is fixedly connected to the output end of the motor, and a closing plate is fixedly connected to both sides of the drive shaft.
[0009] By adopting the above technical solution, the motor is started, and the motor drives the closing plate to rotate through the drive shaft. When the closing plate covers the opening of the discharge pipe, the closing plate will stop discharging material, thereby enabling the device to control the closing of the discharge pipe through the motor.
[0010] A further feature of this invention is that a sleeve is fixedly connected to the bottom of the discharge pipe, a threaded cylinder is threadedly connected to the inside of the sleeve, and a tapered pipe is fixedly connected to the bottom of the threaded cylinder.
[0011] By adopting the above technical solution, the threaded cylinder is connected to the bottom of the discharge pipe through the sleeve thread. The tapered pipe is tapered and the tail of the tapered pipe is narrow, so that the plastic masterbatch inside the discharge pipe enters the inside of the packaging bag through the tapered pipe, preventing the plastic masterbatch from overflowing.
[0012] A further feature of this invention is that a sealing ring is fitted around the outside of the threaded cylinder, and anti-slip particles are provided on the outside of the sealing ring.
[0013] By adopting the above technical solution, the sealing ring seals the threaded cylinder and the sleeve, and provides an anti-slip effect through the anti-slip particles.
[0014] A further feature of this invention is that the conveying device consists of a conveyor frame, rollers, and a conveyor belt.
[0015] By adopting the above technical solution, the roller and the conveyor belt are connected by a drive, and the roller is rotatably connected inside the conveyor frame. The roller is driven by a motor, so that the conveyor belt is driven outside the roller, thereby achieving the conveying effect.
[0016] A further feature of this invention is that grooves are provided on both sides inside the conveying device, and protective rods are inserted into the grooves.
[0017] By adopting the above technical solution, the protective rod is snapped into the inside of the conveying device through a groove, and there are two sets of protective rods to prevent the packaging bag from falling into the inside of the conveying device.
[0018] A further feature of this invention is that the conveying device has an internal threaded connection with a bolt, the bolt extending into the interior of the protective rod.
[0019] By adopting the above technical solution, bolts are connected to the inside of the conveying device and the guard rod, thereby fixing the guard rod inside the conveying device.
[0020] A further feature of this invention is that a motor housing is fixedly installed on the outside of the discharge pipe, and the motor is fixedly installed inside the motor housing.
[0021] By adopting the above technical solution, the motor housing encloses the motor, achieving the effect of protecting the motor.
[0022] A further feature of this invention is that: both sides of the inner wall of the material box are fixedly connected with overlapping blocks, and the top of the overlapping blocks is covered with a cover plate.
[0023] By adopting the above technical solution, the cover plate is connected to the inside of the material box by the overlapping block, thereby enabling the top of the material box to be closed.
[0024] A further feature of this invention is that the material box is fixedly connected to the outside of the material box, and there are two mounting blocks, which are distributed on the left and right sides of the material box.
[0025] By adopting the above technical solution, the material box is attached to the bracket by the mounting block, thus enabling the material box to be installed on the bracket.
[0026] The beneficial effects of this utility model are:
[0027] This utility model, through the arrangement of a material box, weighing platform, discharge pipe, spring, placement plate, scale column, cavity, horizontal plate, slot, crossbar, locking ring, conveying device, and weighing scale, with the weighing platform positioned below the material box, the crossbar is engaged with the inside of the horizontal plate via the slot, and then the locking ring is threaded to the outside of the crossbar. The locking ring, upon contact with the horizontal plate, locks the crossbar, allowing the packaging bag to drape over the outside of the crossbar. Since the crossbar is positioned outside the weighing platform, it facilitates the handling of the packaging bag by workers. The packaging bag is then placed on the weighing platform. In the top placement plate, the plastic masterbatch inside the hopper is discharged through the discharge pipe. The plastic masterbatch will flow into the packaging bag. At this time, the spring will drive the placement plate to retract, and the scale column will move through the cavity inside the weighing platform. By observing the value of the weighing scale extending to the weighing platform, the weight of the plastic masterbatch inside the packaging bag can be determined. Thus, this device can weigh the plastic masterbatch during the bagging process, and the bagged plastic masterbatch can be transported by the conveying device, thereby greatly improving the bagging efficiency of plastic masterbatch.
[0028] This invention utilizes a motor, drive shaft, closing plate, sleeve, threaded cylinder, tapered tube, and sealing ring. When the motor is started, it drives the closing plate to rotate via the drive shaft. When the closing plate covers the opening of the discharge pipe, it stops discharging material. This allows the device to control the closing of the discharge pipe via the motor. The threaded cylinder is threaded to the bottom of the discharge pipe via the sleeve. The tapered tube is tapered with a narrower tail, allowing the plastic masterbatch inside the discharge pipe to pass through the tapered tube into the packaging bag, preventing the plastic masterbatch from overflowing. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of this utility model;
[0031] Figure 2 This is a schematic diagram of the structure of the spring of this utility model;
[0032] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;
[0033] Figure 4 This is an exploded structural diagram of the discharge pipe and the conical pipe of this utility model.
[0034] In the diagram, 1. Material bin; 2. Weighing platform; 3. Discharge pipe; 4. Spring; 5. Placement plate; 6. Scale column; 7. Cavity; 8. Horizontal plate; 9. Slot; 10. Crossbar; 11. Locking ring; 12. Conveying device; 13. Motor; 14. Drive shaft; 15. Closing plate; 16. Sleeve; 17. Threaded cylinder; 18. Tapered tube; 19. Sealing ring; 20. Protective rod; 21. Bolt; 22. Mounting block; 23. Mounting block; 24. Motor box; 25. Weighing scale. Detailed Implementation
[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0036] Reference Figure 1-4A plastic masterbatch weighing and bagging machine includes a material bin 1 and a weighing platform 2. A discharge pipe 3 is fixedly connected to the bottom of the material bin 1. A spring 4 is fixedly connected to the top of the weighing platform 2, and a placement plate 5 is fixedly connected to the top of the spring 4. Scale posts 6 are fixedly connected to both sides of the bottom of the placement plate 5, with scales on the outside of the scale posts 6. A cavity 7 is opened inside the weighing platform 2, through which the scale posts 6 extend to the bottom of the weighing platform 2. A horizontal plate 8 is fixedly connected to one side of the weighing platform 2, with a slot 9 inside the horizontal plate 8. A crossbar 10 is engaged inside the slot 9, and locking rings 11 are threaded to both ends of the crossbar 10. A conveying device 12 is provided on the other side of the weighing platform 2. Weighing scales 25 are provided on the outside of the scale posts 6. The weighing platform 2 is positioned below the material bin 1. The crossbar 10 is engaged with the inside of the horizontal plate 8 via the slot 9. Then, the locking ring 11 is threaded onto the outside of the crossbar 10. After the locking ring 11 contacts the horizontal plate 8, it locks the crossbar 10. The packaging bag is then placed on the outside of the crossbar 10, which is positioned on the outside of the weighing platform 2, facilitating easy handling by staff. The packaging bag is then placed in the placement plate 5 on top of the weighing platform 2. The plastic masterbatch inside the material box 1 is discharged through the discharge pipe 3, flowing into the packaging bag. At this time, the spring 4 causes the placement plate 5 to retract, and the scale column 6 moves through the cavity 7 inside the weighing platform 2. By observing the value of the weighing scale 25 extending to the weighing platform 2, the weight of the plastic masterbatch inside the packaging bag can be determined. This allows the device to weigh plastic masterbatch during the bagging process, and the bagged plastic masterbatch can be transported by the conveyor 12, thus greatly improving the bagging efficiency of plastic masterbatch. A motor 13 is fixedly installed on the outside of the discharge pipe 3, and a drive shaft 14 is fixedly connected to the output end of the motor 13. Closing plates 15 are fixedly connected to both sides of the drive shaft 14. When the motor 13 is started, it drives the closing plates 15 to rotate through the drive shaft 14. When the closing plates 15 cover the opening of the discharge pipe 3, the closing plates 15 will stop discharging, thus enabling the device to control the closing of the discharge pipe 3 through the motor 13. A sleeve 16 is fixedly connected to the bottom of the discharge pipe 3, and a threaded cylinder 17 is threadedly connected inside the sleeve 16. A tapered tube 18 is fixedly connected to the bottom of the threaded cylinder 17. The threaded cylinder 17 is threaded to the bottom of the discharge pipe 3 through a sleeve 16. The tapered tube 18 is tapered and narrow at the tail, allowing the plastic masterbatch inside the discharge pipe 3 to enter the packaging bag through the tapered tube 18, preventing the plastic masterbatch from overflowing. A sealing ring 19 is fitted around the outside of the threaded cylinder 17. Anti-slip particles are provided on the outside of the sealing ring 19. The sealing ring 19 seals the threaded cylinder 17 and the sleeve 16, and the anti-slip particles provide an anti-slip effect. The conveying device 12 consists of a conveyor frame, rollers, and a conveyor belt. The rollers and the conveyor belt are connected by a drive mechanism, and the rollers are rotatably connected inside the conveyor frame. The rollers are driven by a motor, causing the conveyor belt to move around outside the rollers.To achieve the desired conveying effect, grooves are provided on both sides of the inside of the conveying device 12. Protective rods 20 are inserted into the grooves and secured to the inside of the conveying device 12 via these grooves. Two sets of protective rods 20 are used to prevent packaging bags from falling inside the conveying device 12. Bolts 21 are threaded inside the conveying device 12, extending into the protective rods 20. Connecting the bolts 21 to the inside of both the conveying device 12 and the protective rods 20 secures the protective rods 20 within the conveying device 12. A motor housing 24 is fixedly installed on the outside of the discharge pipe 3. The motor 13 is fixedly installed inside the motor housing 24, which encloses the motor 13 for protection. Two mounting blocks 22 are fixedly connected to the inner walls of the material box 1. A cover plate is attached to the top of each mounting block 22, and the cover plate is secured to the inside of the material box 1 via the mounting blocks 22, thus closing the top of the material box 1. Two mounting blocks 23 are fixedly connected to the outside of the material box 1, located on the left and right sides. The material box 1 is secured to the support via the mounting blocks 23, allowing it to be mounted on the support.
[0037] In this invention, the weighing platform 2 is positioned below the material bin 1. The crossbar 10 is secured to the inside of the horizontal plate 8 via the slot 9. Then, the locking ring 11 is threaded onto the outside of the crossbar 10. After the locking ring 11 contacts the horizontal plate 8, it locks the crossbar 10, allowing the packaging bag to drape over the outside of the crossbar 10. Since the crossbar 10 is positioned on the outside of the weighing platform 2, it facilitates easy handling of the packaging bag by the staff. The packaging bag is then placed in the placement plate 5 on top of the weighing platform 2. The plastic masterbatch inside the material bin 1 is discharged through the discharge pipe 3, flowing into the packaging bag. At this time, the spring 4 causes the placement plate 5 to retract, and the scale column 6 moves through the cavity 7 inside the weighing platform 2. By observing the value extended from the weighing scale 25 to the weighing platform 2, the value is determined. The weight of the plastic masterbatch inside the packaging bag allows this device to weigh the plastic masterbatch during the bagging process. After bagging, the plastic masterbatch can be transported by the conveyor device 12, which greatly improves the bagging efficiency of the plastic masterbatch. The motor 13 is started, which drives the closing plate 15 to rotate through the drive shaft 14. When the closing plate 15 covers the opening of the discharge pipe 3, the closing plate 15 will stop discharging. This allows the device to control the closing of the discharge pipe 3 through the motor 13. The threaded cylinder 17 is threaded to the bottom of the discharge pipe 3 through the sleeve 16. The tapered tube 18 is tapered and narrow at the tail, so that the plastic masterbatch inside the discharge pipe 3 enters the interior of the packaging bag through the tapered tube 18, preventing the plastic masterbatch from overflowing.
[0038] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A plastic master batch finished product weighing and bagging machine comprising a material box (1) and a weighing table (2), characterized in that: The bottom of the material box (1) is fixedly connected to the discharge pipe (3), the top of the weighing platform (2) is fixedly connected to the spring (4), the top of the spring (4) is fixedly connected to the placement plate (5), the bottom sides of the placement plate (5) are fixedly connected to the scale column (6), the scale column (6) is provided with a scale, the weighing platform (2) is provided with a cavity (7), the scale column (6) passes through the cavity to the bottom of the weighing platform (2), the weighing platform (2) is fixedly connected to one side of the weighing platform (2), the horizontal plate (8) is provided with a slot (9) inside the horizontal plate (8), the slot (9) is connected to a crossbar (10), the two ends of the crossbar (10) are threadedly connected to locking rings (11), the other side of the weighing platform (2) is provided with a conveying device (12), and the outer side of the scale column (6) is provided with a weighing scale (25).
2. The plastic master batch finished product weighing and bagging machine according to claim 1, characterized in that: A motor (13) is fixedly installed on the outside of the discharge pipe (3). A drive shaft (14) is fixedly connected to the output end of the motor (13). A closing plate (15) is fixedly connected to both sides of the drive shaft (14).
3. The plastic master batch finished product weighing and bagging machine according to claim 1, characterized in that: A sleeve (16) is fixedly connected to the bottom of the discharge pipe (3), and a threaded cylinder (17) is threadedly connected inside the sleeve (16), and a tapered pipe (18) is fixedly connected to the bottom of the threaded cylinder (17).
4. The plastic master batch finished product weighing and bagging machine according to claim 3, characterized in that: The threaded cylinder (17) is fitted with a sealing ring (19), and the sealing ring (19) is provided with anti-slip particles on its outside.
5. A plastic masterbatch finished product weighing and bagging machine according to claim 1, characterized in that: The conveying device (12) consists of a conveyor frame, rollers and conveyor belt.
6. The plastic master batch finished product weighing and bagging machine according to claim 1, characterized in that: The conveying device (12) has grooves on both sides inside, and a protective rod (20) is inserted into the inside of the groove.
7. The plastic master batch finished product weighing and bagging machine according to claim 6, characterized in that: The conveying device (12) is internally threaded with a bolt (21) that extends into the interior of the guard rod (20).
8. The plastic master batch finished product weighing and bagging machine according to claim 2, characterized in that: The discharge pipe (3) is fixedly installed with a motor housing (24) on the outside, and the motor (13) is fixedly installed inside the motor housing (24).
9. The plastic master batch finished product weighing and bagging machine according to claim 1, characterized in that: Both sides of the inner wall of the material box (1) are fixedly connected with a mounting block (22), and a cover plate is attached to the top of the mounting block (22).
10. The plastic master batch finished product weighing and bagging machine according to claim 1, characterized in that: The material box (1) is fixedly connected to the outside of the material box (1). There are two mounting blocks (23), and the two mounting blocks (23) are distributed on the left and right sides of the material box (1).