Volumetric metering unit structure convenient to maintain

Abstract

The utility model relates to the technical field of mixers, in particular to a volumetric metering unit structure convenient to maintain. A volumetric metering unit structure convenient to maintain comprises a hopper, a sleeve body and a base unit and is characterized in that the bottom of the hopper is connected with the top of the sleeve body, and the base unit is arranged on one side of the sleeve body; a sleeve fixing base is arranged on the outer side of the sleeve body and is of a rectangular frame structure with an opening in the upper portion, and the front side and the rear side of the sleeve body are connected with the sleeve fixing base through positioning columns respectively. Compared with the prior art, the volumetric metering unit structure convenient to maintain is provided, the sleeve body and the sleeve fixing base are redesigned, and the problems that in a traditional structure, the space is narrow when a screw is replaced, and replacement is inconvenient are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a volumetric metering unit structure that is convenient for maintenance. Background Art

[0002] The metering unit is an additive metering device that measures by the rotation of different screws. The additive is loaded in the hopper and conveyed to the base unit through the rotation of the screw. Since different products require different amounts of additives, the screw models (both the screw diameter and pitch are different) need to be frequently changed.

[0003] The traditional structure slides the sleeve body on 2 guide posts and is fixed by the knife gate fixing rod. The distance from the base is determined by the length of the guide posts. However, the traditional structure has problems such as a narrow space for changing the screw and inconvenience in replacement, which will cause complaints from customers. Summary of the Invention

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a volumetric metering unit structure that is convenient for maintenance. The sleeve body and the sleeve fixing seat are redesigned to solve the problems of narrow space and inconvenience in replacing the screw in the traditional structure.

[0005] To achieve the above object, a volumetric metering unit structure that is convenient for maintenance is designed, including a hopper, a sleeve body, and a base unit. It is characterized in that: the bottom of the hopper is connected to the top of the sleeve body, and a base unit is provided on one side of the sleeve body; a sleeve fixing seat is provided outside the sleeve body. The sleeve fixing seat is a rectangular frame structure with an open top, and the front and rear sides of the sleeve body are respectively connected to the sleeve fixing seat by positioning posts.

[0006] A screw is provided inside the sleeve body. One end of the screw is connected to a servo motor, and the other end of the screw is located inside the base unit.

[0007] A number of guide grooves are respectively provided on the front and rear sides of the top of the sleeve fixing seat. Positioning posts are provided on the sleeve body. One end of the positioning post is placed in the guide groove, and the other end of the positioning post is connected to the sleeve body; a indexing pin positioning hole is provided on one side of the sleeve fixing seat, and an indexing pin is installed on the indexing pin positioning hole.

[0008] At least 2 guide grooves are provided.

[0009] The guide groove is a U-shaped groove structure.

[0010] Compared with the prior art, the utility model provides a volumetric metering unit structure that is convenient for maintenance. The sleeve body and the sleeve fixing seat are redesigned to solve the problems of narrow space and inconvenience in replacing the screw in the traditional structure. Brief Description of the Drawings

[0011] Figure 1 It is the front view of the traditional structure.

[0012] Figure 2 It is the sectional view of the traditional structure.

[0013] Figure 3 It is the side view of the traditional structure.

[0014] Figure 4 It is the three-dimensional view of the structure of the present utility model.

[0015] Figure 5 It is the front view of the structure of the present utility model.

[0016] Figure 6 It is the sectional view of the structure of the present utility model.

[0017] See Figures 1 to 6 , 1 is the hopper, 2 is the base unit, 3 is the old sleeve body, 4 is the servo motor, 5 is the guide post, 6 is the screw, 7 is the knife fixing rod, 8 is the sleeve body, 9 is the sleeve fixing seat, 10 is the positioning post, 11 is the guide groove, and 12 is the indexing pin. Specific embodiments

[0018] The following further describes the present utility model with reference to the accompanying drawings.

[0019] As Figures 1 to 3 shown, the traditional structure slides left and right on two guide posts 5 through the old sleeve body 3 and is fixed by the knife fixing rod 7. The distance from the base unit 2 is determined by the length of the guide post 5. However, the traditional structure has problems such as a narrow space for replacing the screw 6 and inconvenience in replacement, which will cause complaints from customers.

[0020] As Figures 4 to 6 shown, the newly designed metering unit structure of the present utility model includes a hopper, a sleeve body, and a base unit. The bottom of the hopper 1 is connected to the top of the sleeve body 8, and a base unit 2 is provided on one side of the sleeve body 8; a sleeve fixing seat 9 is provided outside the sleeve body 8. The sleeve fixing seat 9 is a rectangular frame structure with an open top, and the front and rear sides of the sleeve body 8 are respectively connected to the sleeve fixing seat 9 by positioning posts 10.

[0021] A screw 6 is provided inside the sleeve body 8. One end of the screw 6 is connected to the servo motor 4, and the other end of the screw 6 is located inside the base unit.

[0022] On the front and back sides of the top of the sleeve fixing base 9, a number of guiding grooves 11 are respectively provided. A positioning post 10 is provided on the sleeve main body 8. One end of the positioning post 10 is placed in the guiding groove 11, and the other end of the positioning post 10 is connected to the sleeve main body 8. A indexing pin positioning hole is provided on one side of the sleeve fixing base 9, and an indexing pin 12 is installed on the indexing pin positioning hole.

[0023] There are at least 2 guiding grooves 11.

[0024] The guiding groove 11 is of a U-shaped groove structure.

[0025] The new structure of the utility model is designed to solve the problem of replacing the screw rod in a narrow space. The sleeve main body is redesigned, and a sleeve fixing base 9 is added. There are 4 guiding grooves 11 on the sleeve fixing base 9, with 2 in a group, respectively at the front and back positions of the sleeve fixing base 9, and 2 indexing pins 12. The 2 indexing pins 12 are respectively at the front and back positions of the sleeve fixing base 9. The indexing pin 12 passes through the indexing pin positioning hole and contacts the sleeve main body 8 to lock the position of the sleeve main body 8. There are 4 positioning posts 10 on the sleeve main body 8, and the 4 positioning posts 10 are respectively placed on the 4 guiding grooves 11, enabling the sleeve main body 8 to be accurately positioned to a reasonable position and locked by 2 indexing pins 12.

[0026] When replacing the screw rod 6, just pull out the indexing pin 12, and the sleeve main body 8 can be quickly lifted and separated from the sleeve fixing base 9. Then replace the screw rod 6. After replacement, it can be quickly reset, and can be easily and quickly positioned to a reasonable position through the positioning post 10 and the indexing pin 12.

Claims

1. A volumetric metering unit structure that is easy to maintain, comprising a hopper, a sleeve body, and a base unit, characterized in that: The bottom of the hopper (1) is connected to the top of the sleeve body (8), and a base unit (2) is provided on one side of the sleeve body (8); a sleeve fixing seat (9) is provided on the outer side of the sleeve body (8), and the sleeve fixing seat (9) is a rectangular frame structure with an upper opening, and the front and rear sides of the sleeve body (8) are connected to the sleeve fixing seat (9) by positioning columns (10) respectively.

2. A volumetric metering unit structure that is easy to maintain according to claim 1, characterized in that: A screw rod (6) is provided inside the sleeve body (8), one end of the screw rod (6) is connected to the servo motor (4), and the other end of the screw rod (6) is located inside the base unit (2).

3. The volumetric metering unit structure that is easy to maintain according to claim 1 is characterized in that: A plurality of guide grooves (11) are respectively provided on the front and rear sides of the top of the sleeve fixing seat (9); a positioning column (10) is provided on the sleeve body (8); one end of the positioning column (10) is mounted in the guide groove (11), and the other end of the positioning column (10) is connected to the sleeve body (8); an indexing pin positioning hole is provided on one side of the sleeve fixing seat (9), and an indexing pin (12) is installed on the indexing pin positioning hole.

4. The volumetric metering unit structure that is easy to maintain according to claim 3 is characterized in that: At least two guide grooves (11) are provided.

5. The volumetric metering unit structure that is easy to maintain according to claim 3 is characterized in that: The guide groove (11) is a U-shaped groove structure.

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