Plastic particle packing machine with weighing function
By designing a pressure tightening and elastic mechanism for a weighing plastic granule baler, the baling pressure can be automatically adjusted according to the material and density of the plastic granules, ensuring the quality of heat sealing. This solves the problems of cumbersome manual heat sealing and pressure adjustment in existing technologies, and improves the tightness of the packaging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU CHIXIN PLASTICS CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-01
AI Technical Summary
Existing plastic pellet baling machines with weighing functions mainly rely on manual heat sealing, which is cumbersome and makes it difficult to adjust the baling pressure according to the material and density of the plastic pellets, resulting in insufficient packaging tightness.
A weighing plastic granule baler was designed, comprising a weighing platform, a pressure clamping mechanism, and an elastic mechanism. The air intake and stroke position of the cylinder can be adjusted through an electronic control panel to achieve precise control of the baling pressure. The baler is heat-sealed using an electric heating plate, and the elastic mechanism ensures the sealing quality.
It enables automatic adjustment of packaging pressure based on the material and density of plastic granules, ensuring heat sealing quality and adapting to heat-pressing of packaging bags of different thicknesses, reducing manual intervention and improving packaging tightness.
Smart Images

Figure CN224184660U_ABST
Abstract
Description
A type of plastic pellet baler with weighing function Technical Field
[0001] This utility model belongs to the field of baling machine technology, and specifically relates to a baling machine for weighing plastic granules. Background Technology
[0002] Modified plastics refer to plastic products that have been modified by filling, blending, and reinforcing methods on the basis of general-purpose plastics and engineering plastics, thereby improving their properties such as flame retardancy, strength, impact resistance, and toughness. Plastic weighing and packaging is an important part of plastic processing, and the feeding process of the packaging machine on the plastic packaging production line is currently a labor-intensive process.
[0003] Currently, existing plastic granule baling machines with weighing functions mainly rely on manual heat sealing. Manual heat sealing is a cumbersome operation and makes it difficult to adjust the baling pressure according to the material and density of the plastic granules. This results in insufficient compactness of the plastic granule packaging. Therefore, a plastic granule baling machine with weighing function is needed to solve the problems existing in the current technology. Summary of the Invention
[0004] The purpose of this invention is to provide a plastic granule baler with weighing function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a weighing plastic granule baler, including a weighing platform, a weighing seat below the weighing platform, and a pressure clamping mechanism above the weighing platform. The pressure clamping mechanism includes a driving cylinder, a pressure sleeve, an extrusion plate, and an electric heating plate. The driving cylinder is located above the weighing platform, the pressure sleeve is fixed to the output end of the driving cylinder, the extrusion plate is located inside the pressure sleeve, and the electric heating plate is fixed to the inner surface of the extrusion plate.
[0006] It should be noted in the solution that an elastic mechanism is provided on one side of the pressure sleeve. The elastic mechanism includes a telescopic slide rod, a spring sleeve and a return spring. The spring sleeve is fixed on one side surface of the pressure sleeve. The telescopic slide rod slides through the inside of the spring sleeve. The return spring is sleeved on the part of the telescopic slide rod that extends into the spring sleeve.
[0007] It is worth noting that a guide slide is fixed to one end of the telescopic slide rod that extends into the spring sleeve, and one end of the telescopic slide rod is fixed to the middle of one end face of the extrusion plate.
[0008] It should be further noted that one end of the reset spring is fixed to the end face of the guide slide, and the other end of the reset spring is fixed to the inner end wall of the spring sleeve.
[0009] As a preferred embodiment, the upper end face of the pressure sleeve is provided with a combing gap, and the extrusion plate is disposed in the combing gap of the pressure sleeve.
[0010] As a preferred embodiment, a lifting bracket is fixed to the rear surface of the weighing base, and the housing of the driving cylinder is fixed to the upper end face of the lifting bracket.
[0011] As a preferred embodiment, both sides of the lifting bracket are fixed with a fixing bracket, and the lower end of the fixing bracket is fixed with a suspension hook.
[0012] As a preferred embodiment, one side surface of the pressure sleeve is provided with a telescopic clearance hole, and one side surface of the lifting bracket is fixed with an electrical control panel.
[0013] Compared with the prior art, the plastic pellet baler with weighing function provided by this utility model has at least the following beneficial effects:
[0014] By using the pressure clamping mechanism and the packaging mode set on the control panel according to the material and density of the plastic granules, the packaging pressure can be controlled by adjusting the air intake and stroke position of the cylinder. The air intake of the cylinder determines the pressure of the cylinder, while the stroke of the cylinder determines the degree of compression of the packaged items. When the pressure frame reaches the set packaging pressure, the electric heating plate on the extrusion plate is energized to heat and perform heat sealing packaging on the bag opening.
[0015] With the elastic mechanism in place, when the electric heating plate is hot-pressed and bonded, the extrusion plate is pressed against the sealing part of the packaging bag opening under the elastic force of the return spring to ensure the quality of the heat-melt seal. Furthermore, the adaptive pressure applied by the return spring to the extrusion plate can adapt to the hot-pressing treatment of packaging bags of different thicknesses and the shuttle in and out of the packaging bags. Attached Figure Description
[0016] Figure 1 is a three-dimensional view of the overall structure of this utility model;
[0017] Figure 2 is a three-dimensional view of the combing gap structure of this utility model;
[0018] Figure 3 is a perspective view of the pressure sleeve structure of this utility model;
[0019] Figure 4 is a three-dimensional cross-sectional view of the spring sleeve structure of this utility model;
[0020] Figure 5 is a three-dimensional view of the electric heating plate structure of this utility model.
[0021] In the diagram: 1. Weighing base; 2. Weighing platform; 3. Lifting bracket; 4. Electrical control panel; 5. Drive cylinder; 6. Fixed bracket; 7. Suspension hook; 8. Pressure sleeve; 9. Combing gap; 10. Extrusion plate; 11. Telescopic slide bar; 12. Spring sleeve; 13. Guide slide plate; 14. Return spring; 15. Electric heating plate; 16. Telescopic clearance hole. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] Please refer to Figures 1-5. This utility model provides a weighing plastic granule baler, including a weighing platform 2, a weighing seat 1 below the weighing platform 2, and a pressure clamping mechanism above the weighing platform 2. The pressure clamping mechanism includes a drive cylinder 5, a pressure sleeve 8, an extrusion plate 10, and an electric heating plate 15. The drive cylinder 5 is located above the weighing platform 2, the pressure sleeve 8 is fixed to the output end of the drive cylinder 5, the extrusion plate 10 is located inside the pressure sleeve 8, and the electric heating plate 15 is fixed to the inner surface of the extrusion plate 10.
[0024] As further shown in Figures 1, 2 and 3, it is worth noting that a spring mechanism is provided on one side of the pressure sleeve 8. The spring mechanism includes a telescopic slide rod 11, a spring sleeve 12 and a return spring 14. The spring sleeve 12 is fixed on one side surface of the pressure sleeve 8, the telescopic slide rod 11 slides through the inside of the spring sleeve 12, and the return spring 14 is sleeved on the part of the telescopic slide rod 11 that extends into the spring sleeve 12.
[0025] As further shown in Figure 3, it is worth noting that the end of the telescopic slide rod 11 that extends into the spring sleeve 12 is fixed with a guide slide plate 13, and the end of the telescopic slide rod 11 is fixed to the middle of one end face of the extrusion plate 10.
[0026] The solution has the following working process: Before use, the packaging bag containing plastic granules is placed on the weighing platform 2 for weighing. Then, the bag opening is inserted through the combing gap 9 of the pressure sleeve 8 and suspended on the hanging hook 7 at the lower end of the fixed bracket 6 through the preset hanging hole. Then, the packaging mode set on the electric control panel 4 according to the material and density of the plastic granules is operated. In this way, the packaging pressure can be controlled by adjusting the air intake and stroke position of the cylinder. The air intake of the cylinder determines the pressure of the cylinder, while the stroke of the cylinder determines the degree of compression of the packaged items. When the pressure sleeve 8 reaches the set packaging pressure, the electric heating plate 15 on the extrusion plate 10 is energized to heat and perform heat sealing packaging on the opening of the packaging bag.
[0027] According to the above working process, the packaging mode set on the control panel 4 according to the material and density of the plastic particles can control the packaging pressure by adjusting the air intake and stroke position of the cylinder. The air intake of the cylinder determines the pressure of the cylinder, while the stroke of the cylinder determines the degree of compression of the packaged items. When the pressure frame 8 reaches the set packaging pressure, the electric heating plate 15 on the extrusion plate 10 is energized to heat and perform heat sealing packaging on the opening of the packaging bag.
[0028] As further shown in Figures 2, 3, 4 and 5, it is worth noting that one end of the return spring 14 is fixed to the end face of the guide slide plate 13, and the other end of the return spring 14 is fixed to the inner end wall of the spring sleeve 12.
[0029] Further, as shown in Figure 5, it is worth noting that the upper end face of the pressure sleeve 8 is provided with a combing gap 9, and the extrusion plate 10 is set in the combing gap 9 of the pressure sleeve 8. When the electric heating plate 15 heats and presses the extrusion plate 10, the extrusion plate 10 is pressed against the sealing part of the packaging bag mouth under the elastic force of the return spring 14 to ensure the quality of the heat melt seal. Moreover, the adaptive pressure applied by the return spring 14 to the extrusion plate 10 can adapt to the heat pressing treatment of packaging bags of different thicknesses and the shuttle in and out of the packaging bags.
[0030] As further shown in Figure 1, it is worth noting that a lifting bracket 3 is fixed to the rear surface of the weighing base 1, and the housing of the drive cylinder 5 is fixed to the upper end face of the lifting bracket 3.
[0031] As further shown in Figure 1, it is worth noting that both sides of the lifting bracket 3 are fixed with a fixing bracket 6, and the lower end of the fixing bracket 6 is fixed with a suspension hook 7.
[0032] As further shown in Figure 1, it is worth noting that a telescopic clearance hole 16 is provided on one side surface of the pressure sleeve 8, and an electrical control panel 4 is fixed on one side surface of the lifting bracket 3.
[0033] In summary: The packaging modes set on the control panel 4 according to the material and density of the plastic granules allow for control of the packaging pressure by adjusting the air intake and stroke position of the cylinder. The air intake of the cylinder determines the pressure, while the stroke determines the degree of compression of the packaged items. When the pressure frame 8 reaches the set packaging pressure, the electric heating plate 15 on the extrusion plate 10 is energized and heats the opening of the packaging bag to perform heat sealing. During the heat sealing process, the extrusion plate 10 is pressed against the sealing part of the packaging bag opening by the elastic force of the return spring 14 to ensure the quality of the heat-sealed seal. Furthermore, the adaptive pressure applied by the return spring 14 to the extrusion plate 10 can adapt to the heat sealing of packaging bags of different thicknesses and the movement of packaging bags in and out.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A baling machine for plastic granules with weighing function, comprising a weighing platform (2), characterized in that: A weighing seat (1) is provided below the weighing platform (2), and a pressure clamping mechanism is provided above the weighing platform (2). The pressure clamping mechanism includes a driving cylinder (5), a pressure sleeve (8), a pressing plate (10), and an electric heating plate (15). The driving cylinder (5) is located above the weighing platform (2), the pressure sleeve (8) is fixed on the output end of the driving cylinder (5), the pressing plate (10) is located inside the pressure sleeve (8), and the electric heating plate (15) is fixed on the inner surface of the pressing plate (10).
2. The plastic granule baler with weighing function according to claim 1, characterized in that: A spring mechanism is provided on one side of the pressure sleeve (8). The spring mechanism includes a telescopic slide rod (11), a spring sleeve (12), and a return spring (14). The spring sleeve (12) is fixed on one side surface of the pressure sleeve (8). The telescopic slide rod (11) slides through the inside of the spring sleeve (12). The return spring (14) is sleeved on the part where the telescopic slide rod (11) extends into the spring sleeve (12).
3. A baler for weighing plastic granules according to claim 2, characterized in that: One end of the telescopic slide rod (11) that extends into the spring sleeve (12) is fixed with a guide slide plate (13), and one end of the telescopic slide rod (11) is fixed to the middle of one end face of the extrusion plate (10).
4. A plastic granule baler with weighing function according to claim 3, characterized in that: One end of the reset spring (14) is fixed to the end face of the guide slide plate (13), and the other end of the reset spring (14) is fixed to the inner end wall of the spring sleeve (12).
5. A bagging machine for weighing plastic pellets as claimed in claim 4, wherein: The upper end face of the pressure sleeve (8) is provided with a combing gap (9), and the extrusion plate (10) is disposed in the combing gap (9) of the pressure sleeve (8).
6. A bagging machine for weighing plastic pellets according to claim 5, characterized in that: The rear surface of the weighing base (1) is fixed with a lifting bracket (3), and the housing of the driving cylinder (5) is fixed at the upper end face of the lifting bracket (3).
7. A baler for weighing plastic granules according to claim 6, characterized in that: The lifting bracket (3) has fixed brackets (6) on both sides, and the lower end of the fixed bracket (6) has a suspension hook (7).
8. A bagging machine for weighing plastic pellets according to claim 7, characterized in that: The pressure sleeve (8) has a telescopic clearance hole (16) on one side surface, and the lifting bracket (3) has an electrical control panel (4) fixed on one side surface.