Conveying device for diameter adjustment of multiple extruded grains

Abstract

The invention discloses a conveying device for diameter adjustment of a plurality of extruded grains. The conveying device comprises a front conveying belt, a rear conveying belt and a group of diameter adjustment assemblies, wherein the front conveying belt and the rear conveying belt are connected in sequence, and the diameter adjustment assemblies are arranged at the splicing position of the front conveying belt and the rear conveying belt. The diameter adjusting assembly is composed of a roller support, a diameter adjusting roller rotationally connected to the roller support through a bearing, and a vertical height adjusting mechanism arranged below the roller support. The vertical height adjusting device controls the roller support to move vertically. The diameter adjusting idler wheels of the diameter adjusting assemblies are located on the conveying path of the extruded grain, and the rotating direction of the diameter adjusting idler wheels is the same as the transmission direction of the front conveying belt and the transmission direction of the rear conveying belt. According to the conveying device, through the two sets of conveying belts and the set of diameter adjusting assembly, the diameter adjusting operation on the multiple grains extruded out of the discharging holes of the spiral pressing and stretching multi-hole mold is achieved, so that the diameters of all the grains tend to be consistent, and the comprehensive quality of the grains is improved.

Description

Technical Field

[0001] The invention relates to a conveying device for adjusting the diameters of a plurality of extruded medicine columns, belonging to the technical field of spiral extrusion forming processes. Background Art

[0002] At present, a certain type of small-scale medicine column is continuously spirally pressed and stretched using a porous die to produce medicine. After the medicine is produced, it is sent to the medicine cutting room with a traditional conveyor belt. Due to the difference in the diameter of the porous die and the difference in the extrusion pressure at different points of the spiral press, the outer diameters of the medicine columns extruded from different holes are different. After extrusion, the medicine column has thermoplasticity and is stretched and thinned by the conveyor belt. The traction force of the traditional transmission belt on the medicine column is mainly sliding friction. The traction force on each medicine column is basically the same. At the same time, the porous medicine column is stretched, and the medicine column with a larger outer diameter cannot be stretched specifically. As a result, it is difficult to ensure the consistency of the outer diameter of the entire batch of medicine strips, resulting in a waste of raw materials and selection labor. Therefore, ensuring the consistency of the outer diameter of the medicine strips after the medicine is produced by the porous die has become a bottleneck in improving the product yield. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the medicine strip conveyor belt traction cannot specifically stretch and adjust the outer diameter of the medicine column after the medicine is discharged from the porous mold, and to provide a conveying device for adjusting the diameter of multiple extruded medicine columns.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A conveying device for adjusting the diameter of multiple extruded medicine columns of the present invention comprises a front conveyor belt and a rear conveyor belt connected in series, and a group of diameter adjustment components arranged at the connection between the front conveyor belt and the rear conveyor belt;

[0006] The diameter adjusting assembly consists of a roller support, a diameter adjusting roller rotatably connected to the roller support through a bearing, and a vertical height adjustment mechanism arranged below the roller support; the vertical height adjustment controls the vertical movement of the roller support; the diameter adjusting rollers of each group of diameter adjusting assemblies are respectively located on the conveying path of the extruded medicine column, and the rotation direction of each diameter adjusting roller is the same as the transmission direction of the front conveyor belt and the rear conveyor belt.

[0007] An arc-shaped supporting groove is provided on the annular surface of the diameter-adjusting roller to improve the supporting stability of the diameter-adjusting roller.

[0008] Working process

[0009] Before discharging, first adjust the height of each diameter-adjusting roller to not be higher than the conveying height of the front conveyor belt and the rear conveyor belt through the vertical height adjustment mechanism of each group of diameter-adjusting components. After the propellant charge is extruded from the discharge hole of the spiral extrusion porous die, the front end of each charge column first falls into the front conveyor belt, and the front conveyor belt pulls each charge column toward the rear conveyor belt through friction; by controlling the conveying speed of the front conveyor belt and the rear conveyor belt to be slightly higher than the discharge speed of the spiral extrusion porous die, each charge column is axially stretched and thinned during the traction process. Affected by the difference in mold aperture, the difference in mold cavity extrusion pressure, etc., the charge columns extruded from each discharge hole of the spiral extrusion porous die may have inconsistent diameters. The diameter adjusting assembly on the path corresponding to the finer diameter medicine column is controlled to perform a diameter adjusting operation, that is, the diameter adjusting roller is controlled to move vertically upward through the vertical height adjusting mechanism, so that the medicine column is lifted upward at the diameter adjusting assembly, and the contact area between the medicine column and the front conveyor belt and the rear conveyor belt is reduced, thereby reducing the axial traction and stretching force on the medicine column, so that the diameter of the medicine column is close to the diameter of other medicine columns.

[0010] Beneficial Effects

[0011] The conveying device of the present invention realizes the diameter adjustment operation of multiple medicine columns extruded from the discharge holes of the spiral extrusion porous die through two groups of conveyor belts and a group of diameter adjustment components, so that the diameters of each medicine column are close to the same, thereby improving the overall quality of the medicine columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the conveying device of the present invention;

[0013] Figure 2 It is a structural schematic diagram of the diameter adjustment component in the conveying device of the present invention;

[0014] In the figure, 1-front conveyor belt, 2-diameter adjustment component, 21-roller support, 22-diameter adjustment roller, 23-vertical height adjustment mechanism, 3-rear conveyor belt. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Example

[0017] like Figure 1 As shown, a conveying device for adjusting the diameter of multiple extruded medicine columns of the present invention comprises a front conveyor belt 1 and a rear conveyor belt 3 connected in succession, and a group of diameter adjusting components 2 arranged at the connection between the front conveyor belt 1 and the rear conveyor belt 3;

[0018] like Figure 2As shown, the diameter adjusting assembly 2 consists of a roller support 21, a diameter adjusting roller 22 rotatably connected to the roller support 21 through a bearing, and a vertical height adjustment mechanism 23 arranged below the roller support 21; the vertical height adjustment controls the vertical movement of the roller support 21; the diameter adjusting rollers 22 of each group of diameter adjusting assemblies 2 are respectively located on the conveying path of the extruded medicine column, and the rotation direction of each diameter adjusting roller 22 is the same as the transmission direction of the front conveyor belt 1 and the rear conveyor belt 3.

[0019] An arc-shaped supporting groove is formed on the annular surface of the diameter-adjusting roller 22 to improve the supporting stability of the diameter-adjusting roller 22 .

[0020] Before discharging, the height of each diameter-adjusting roller 22 is adjusted not higher than the conveying height of the front conveyor belt 1 and the rear conveyor belt 3 through the vertical height adjustment mechanism 23 of each group of diameter-adjusting components 2. After the propellant charge is extruded from the discharge hole of the spiral extrusion porous die, the front end of each drug column first falls into the front conveyor belt 1, and the front conveyor belt 1 pulls each drug column toward the rear conveyor belt 3 through friction; by controlling the conveying speed of the front conveyor belt 1 and the rear conveyor belt 3 to be slightly higher than the discharge speed of the spiral extrusion porous die, each drug column is axially stretched and thinned during the traction process. Affected by the difference in mold aperture, the difference in mold cavity extrusion pressure, etc., the drug columns extruded from each discharge hole of the spiral extrusion porous die may have inconsistent diameters. The diameter adjusting component 2 on the path corresponding to the finer diameter medicine column is controlled to perform a diameter adjusting operation, that is, the diameter adjusting roller 22 is controlled to move vertically upward through the vertical height adjusting mechanism 23, so that the medicine column is lifted upward at the diameter adjusting component 2, and the contact area between the medicine column and the front conveyor belt 1 and the rear conveyor belt 3 is reduced, thereby reducing the traction and stretching force on the medicine column in the axial direction, so that the diameter of the medicine column is close to the diameter of other medicine columns.

Claims

1. A conveying device for adjusting the diameter of multiple extruded medicine columns, characterized in that: It includes a front conveyor belt and a rear conveyor belt connected in front and behind, and a group of diameter adjustment components arranged at the connection between the front conveyor belt and the rear conveyor belt; The diameter adjusting assembly consists of a roller support, a diameter adjusting roller rotatably connected to the roller support through a bearing, and a vertical height adjustment mechanism arranged below the roller support; the vertical height adjustment controls the vertical movement of the roller support; the diameter adjusting rollers of each group of diameter adjusting assemblies are respectively located on the conveying path of the extruded medicine column, and the rotation direction of each diameter adjusting roller is the same as the transmission direction of the front conveyor belt and the rear conveyor belt.

2. A conveying device for adjusting the diameter of multiple extruded medicine columns as claimed in claim 1, characterized in that: The annular surface of the diameter-adjusting roller is provided with an arc-shaped supporting groove.

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