Quantitative conveying device

Abstract

The utility model provides a quantitative conveying device, and belongs to the technical field of plastic processing equipment. The problems that in the prior art, manual mixing and proportioning work efficiency is low, and proportioning precision is low are solved. The quantitative conveying device comprises a machine base, a long-strip-shaped material conveying barrel is arranged on the machine base, a feeding port and a discharging port are formed in the upper side and the lower side of the material conveying barrel respectively, the discharging port and the feeding port are arranged in a front-back staggered mode, a material storage bin is arranged above the feeding port, and a feeding valve used for controlling the feeding port to be opened or closed is further arranged on the material conveying barrel. A material blocking plate and a barrel-shaped material pushing seat are arranged in the material conveying barrel, a piston rod is arranged in the material pushing seat and can move relative to the material pushing seat or drive the material pushing seat to move synchronously, one end of the piston rod extends out of the material pushing seat and is connected with the material blocking plate, and the other end of the piston rod is connected with a driving mechanism. A material containing space is formed between the material blocking plate and the material pushing base. The quantitative conveying device has the advantage of being capable of achieving quantitative conveying of toner or plastic particles.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic processing equipment and relates to a quantitative conveying device. Background Art

[0002] At present, plastic coloring is generally achieved by adding plastic particles of various colors during production to meet the color matching requirements. The coloring of plastic particles is carried out by mixing and stirring color powder and plastic particles in a certain proportion with a plastic color matching machine. The proportioning of the existing color powder and plastic particles depends on manual mixing, which not only has a large workload and low work efficiency, but also has a low proportioning accuracy. Summary of the Invention

[0003] The purpose of the utility model is to provide a quantitative conveying device aiming at the above problems existing in the prior art. The technical problem to be solved by the utility model is how to achieve the quantitative conveying of color powder or plastic particles.

[0004] The purpose of the utility model can be realized by the following technical solutions:

[0005] A quantitative conveying device includes a machine base. It is characterized in that a long strip-shaped feeding cylinder is arranged on the machine base. Feeding ports and discharging ports are respectively arranged on the upper and lower sides of the feeding cylinder. The discharging port and the feeding port are arranged in a front-back dislocation manner. A storage bin is arranged above the feeding port. An inlet valve for controlling the opening or closing of the feeding port is also arranged on the feeding cylinder. A blocking plate and a cylindrical pushing seat are arranged in the feeding cylinder. A piston rod is arranged in the pushing seat. The piston rod can move relative to the pushing seat or drive the pushing seat to move synchronously. One end of the piston rod extends out of the pushing seat and is connected to the blocking plate. The other end of the piston rod is connected with a driving mechanism. A material containing space is formed between the blocking plate and the pushing seat.

[0006] In the above-mentioned quantitative conveying device, both the feeding cylinder and the pushing seat are in the shape of a square cylinder. The piston rod is in the shape of a cuboid. A bolt for locking the positions of the two is detachably arranged between the pushing seat and the piston rod.

[0007] In the above-mentioned quantitative conveying device, scale marks are arranged along the length direction of the piston rod.

[0008] In the above-mentioned quantitative conveying device, the piston rod is threadedly connected with the pushing seat. The pushing seat is in the shape of a cylindrical barrel, and the blocking plate is in the shape of a circular plate.

[0009] In the above-mentioned quantitative conveying device, the driving mechanism includes a motor and a cylinder. The output shaft of the motor is connected to the piston rod, and the output shaft of the cylinder is connected to the motor.

[0010] In the above-mentioned quantitative conveying device, the driving mechanism is a cylinder, and the conveying shaft of the cylinder is connected to the piston rod.

[0011] In the above-mentioned quantitative conveying device, a blowing device for promoting the falling of materials is provided on the storage bin.

[0012] In the above-mentioned quantitative conveying device, the blowing device includes a ventilation pipe penetrating through the side wall of the storage bin. The end of the ventilation pipe extending out of the storage bin is connected to a gas source, and a number of ventilation holes are provided at the part of the ventilation pipe located inside the storage bin.

[0013] In the above-mentioned quantitative conveying device, the part of the storage bin below the blowing device is in a shape that is larger at the top and smaller at the bottom.

[0014] In the above-mentioned quantitative conveying device, an air inlet 33 for connecting to a gas source is provided at the part of the material conveying cylinder 22 above the discharge port 22b.

[0015] Compared with the prior art, the advantages of this quantitative conveying device are as follows: During use, only need to move the blanking plate so that the capacity of the material-containing space between the blanking plate and the pushing seat is certain. Then, by making the material-containing space reciprocate multiple times between the feeding port and the discharging port, the product of the capacity of the material-containing space and the number of movements is the conveying volume of this quantitative conveying device, thus enabling more convenient quantitative conveying of toner or plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of this quantitative conveying device in Embodiment 1.

[0017] Figure 2 is a sectional view of this quantitative conveying device in Embodiment 1.

[0018] Figure 3 is a three-dimensional structural schematic diagram of this quantitative conveying device in Embodiment 2.

[0019] Figure 4 is a sectional view of this quantitative conveying device in Embodiment 2.

[0020] Figure 5 is a sectional view of this quantitative conveying device in Embodiment 3.

[0021] In the figure, 21 is the machine base; 22 is the material conveying cylinder; 22a is the feeding port; 22b is the discharging port; 23 is the storage bin; 24 is the feeding valve; 25 is the blanking plate; 26 is the pushing seat; 27 is the piston rod; 28 is the material-containing space; 29 is the driving mechanism; 29a is the motor; 29b is the cylinder; 30 is the bolt; 31 is the scale mark; 32 is the blowing device; 32a is the ventilation pipe; 32a1 is the ventilation hole; 33 is the air inlet. Detailed implementation manners

[0022] The following are specific embodiments of the present utility model and, in conjunction with the accompanying drawings, further describe the technical solutions of the present utility model. However, the present utility model is not limited to these embodiments.

[0023] Embodiment 1

[0024] A quantitative conveying device, referring to Figure 1-2 , includes a machine base 21. A long strip-shaped material conveying cylinder 22 is arranged on the machine base 21. Feed inlets 22a and discharge outlets 22b are respectively arranged on the upper and lower sides of the material conveying cylinder 22. The discharge outlet 22b and the feed inlet 22a are arranged in a front-back dislocation manner. A storage bin 23 is arranged above the feed inlet 22a. An inlet valve 24 for controlling the opening or closing of the feed inlet 22a is further arranged on the material conveying cylinder 22. A blocking plate 25 and a cylindrical pushing seat 26 are arranged in the material conveying cylinder 22. A piston rod 27 is arranged in the pushing seat 26. The piston rod 27 can move relative to the pushing seat 26 or drive the pushing seat 26 to move synchronously. One end of the piston rod 27 extends out of the pushing seat 26 and is connected to the blocking plate 25. The other end of the piston rod 27 is connected to a driving mechanism 29. A material containing space 28 is formed between the blocking plate 25 and the pushing seat 26.

[0025] Specifically, referring to Figure 1-2 , both the material conveying cylinder 22 and the pushing seat 26 are in the shape of a square cylinder. The piston rod 27 is in the shape of a cuboid. A bolt 30 for locking the positions of the two is detachably arranged between the pushing seat 26 and the piston rod 27. Scale marks 31 are arranged on the piston rod 27 along its length direction. The driving mechanism 29 is a cylinder 29b. The conveying shaft of the cylinder 29b is connected to the piston rod 27.

[0026] Furthermore, referring to Figure 1-2 , a blowing device 32 for promoting the falling of materials is arranged on the storage bin 23. Specifically, the blowing device 32 includes an air pipe 32a penetrating through the side wall of the storage bin 23. The end of the air pipe 32a extending out of the storage bin 23 is connected to a gas source. A plurality of air permeable holes 32a1 are arranged on the part of the air pipe 32a located inside the storage bin 23. In this embodiment, preferably, the part of the storage bin 23 below the blowing device 32 is in the shape of being larger at the top and smaller at the bottom, which can better promote the falling of materials and make the feeding more smooth, especially for powdery materials.

[0027] At the same time, an air inlet 33 for connecting to the gas source is arranged on the part of the material conveying cylinder 22 above the discharge outlet 22b.

[0028] It should be noted that the machine base 21, the material conveying cylinder 22, the storage bin 23, the pushing seat 26 and the piston rod 27 are all detachably connected to each other for convenient cleaning after use.

[0029] Embodiment 2

[0030] The structure and principle of this embodiment are basically the same as those of Embodiment 1. The difference lies in that, referring to Figure 3-4 , the piston rod 27 and the material pushing seat 26 are connected by threads, and the material blocking plate 25 is in the shape of a circular plate. The driving mechanism 29 is a cylinder 29b, and the conveying shaft of the cylinder 29b is connected to the piston rod 27.

[0031] If it is necessary to quantitatively supply toner, color masterbatch or plastic particles, only need to rotate the piston rod 27, and the piston rod 27 drives the material blocking plate 25 to move forward or backward relative to the material pushing seat 26, so as to adjust the capacity of the material containing space 28 formed between the material blocking plate 25 and the material pushing seat 26. When the feed valve 24 opens the feed port 22a, the toner, color masterbatch or plastic particles can naturally fall and fill up under the action of gravity. The size of the capacity of the material containing space 28 corresponds to the distance of the forward and backward movement of the piston rod 27 (at the same time, scale marks 31 are provided on the side of the piston rod 27, and the distance of the forward and backward movement of the piston rod 27 can be intuitively seen), so as to play a role in quantitative adjustment. Considering that the toner is too light, a blowing device 32 is further provided on the storage bin 23 to promote the falling of the toner. Repeating the above steps can achieve quantitative supply of toner. In addition, for the convenience of disassembly and cleaning, the connection mode between the output shaft of the motor and the piston rod can also be changed to the way of magnetic attraction.

[0032] Embodiment 3

[0033] The structure and principle of this embodiment are basically the same as those of Embodiment 2. The difference lies in that, referring to Figure 5 , the driving mechanism 29 includes a motor 29a and a cylinder 29b. The output shaft of the motor 29a is connected to the piston rod 27, and the output shaft of the cylinder 29b is connected to the motor 29a.

[0034] The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims 7.

Claims

1. A quantitative conveying device, comprising a base (21), characterized in that: A long strip-shaped feeding cylinder (22) is arranged on the machine base (21), and a feeding port (22a) and a discharging port (22b) are arranged on the upper and lower sides of the feeding cylinder (22), respectively. The discharging port (22b) and the feeding port (22a) are arranged in a front-to-back staggered manner, and a storage bin (23) is arranged above the feeding port (22a). A feeding valve (24) for controlling the opening or closing of the feeding port (22a) is also arranged on the feeding cylinder (22), and a plug is arranged inside the feeding cylinder (22). A material plate (25) and a cylindrical material pushing seat (26), wherein a piston rod (27) is arranged in the material pushing seat (26), and the piston rod (27) can move relative to the material pushing seat (26) or drive the material pushing seat (26) to move synchronously, one end of the piston rod (27) extends out of the material pushing seat (26) and is connected to the material blocking plate (25), and the other end of the piston rod (27) is connected to a driving mechanism (29), and a material storage space (28) is formed between the material blocking plate (25) and the material pushing seat (26).

2. A quantitative delivery device according to claim 1, characterized in that: The material delivery cylinder (22) and the material pushing seat (26) are both in the shape of square cylinders, the piston rod (27) is in the shape of a rectangular parallelepiped, and a bolt (30) for locking the positions of the material pushing seat (26) and the piston rod (27) is detachably provided between them.

3. A quantitative delivery device according to claim 2, characterized in that: The piston rod (27) is provided with scale marks (31) along its length direction.

4. A quantitative delivery device according to claim 1, characterized in that: The piston rod (27) and the material pushing seat (26) are threadedly connected. The material pushing seat (26) is cylindrical, and the material blocking plate (25) is disc-shaped.

5. A quantitative delivery device according to claim 4, characterized in that: The driving mechanism (29) comprises a motor (29a) and a cylinder (29b), wherein the output shaft of the motor (29a) is connected to the piston rod (27), and the output shaft of the cylinder (29b) is connected to the motor (29a).

6. A quantitative delivery device according to claim 3 or 4, characterized in that: The driving mechanism (29) is a cylinder (29b), and the delivery shaft of the cylinder (29b) is connected to the piston rod (27).

7. A quantitative delivery device according to claim 1, characterized in that: The material storage bin (23) is provided with an air blowing device (32) for promoting the falling of materials.

8. A quantitative delivery device according to claim 7, characterized in that: The blowing device (32) comprises a vent pipe (32a) penetrating the side wall of the storage bin (23); the end of the vent pipe (32a) extending out of the storage bin (23) is connected to an air source; and a portion of the vent pipe (32a) located inside the storage bin (23) is provided with a plurality of air holes (32a1).

9. A quantitative delivery device according to claim 7 or 8, characterized in that: The portion of the material storage bin (23) located below the air blowing device (32) is in a shape that is larger at the top and smaller at the bottom.

10. A quantitative delivery device according to any one of claims 1 to 5, characterized in that: The feeding cylinder (22) is provided with an air inlet (33) for connecting to an air source at a position above the discharge port (22b).

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