A feeding device for rubber mixing mills

Abstract

The application discloses a feeding device on a rubber internal mixer, which comprises a feeding opening on the rubber internal mixer, and opposite support plates are arranged on the two sides of the feeding opening, a transverse cylindrical feeding bin is arranged between the support plates, the two side end faces of the feeding bin are respectively abutted against the support plates, a circular positioning boss is formed on the inner side wall of the support plate, and the positioning boss is inserted into the feeding bin; an arc-shaped material blocking plate is abutted against the outer wall of the lower end of the feeding bin, an outlet which is opposite to the feeding opening is formed in the bottom end of the material blocking plate, an obliquely arranged sealing plate is fixed on the material blocking plate on the front side and the rear side of the outlet, and the two sides of the sealing plate and the two sides of the material blocking plate are respectively fixed on the inner side wall of the support plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber internal mixer, more particularly to a feeding device on a rubber internal mixer. BACKGROUND

[0002] The rubber internal mixer is mainly used for plasticizing and mixing rubber. At present, when the rubber is internally mixed, the raw materials need to be added in strict order to ensure the quality of the rubber, such as adding raw rubber to plasticize for 1 min, adding small materials to mix for 1.5 min, adding carbon black or fillers to mix for 3 min, and finally adding liquid softening agent to mix for 2 min. In the prior art, the operator places the raw materials on a storage rack beside the internal mixer after weighing, and then adds the raw materials in order. The operator manually opens the sealed feeding hopper to add the raw materials. However, when the feeding hopper is opened, the volatile harmful substances in the mixing bin of the internal mixer escape from the feeding hopper, which directly faces the operator during feeding, and causes harm to the operator. SUMMARY

[0003] The present application aims at the deficiencies of the prior art and provides a feeding device on a rubber internal mixer, which is a transmission type feeding device designed for the rubber internal mixer, and can avoid the escape of harmful gases in the internal mixer during feeding to harm the operator.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] A feeding device on a rubber internal mixer, comprising a feeding port on the rubber internal mixer, side supports opposite to each other are arranged on both sides of the feeding port, a horizontal cylindrical feeding bin is inserted between the side supports, the two side end faces of the feeding bin abut against the side supports, a circular positioning boss is formed on the inner side wall of the side support, and the positioning boss is inserted into the feeding bin; an arc-shaped material blocking plate abuts against the outer wall of the lower end of the feeding bin, a circular outlet opposite to the feeding port is formed at the bottom end of the material blocking plate, inclined sealing plates are fixed on the material blocking plates on the front and rear sides of the outlet, and the two sides of the sealing plates and the two sides of the material blocking plates are respectively fixed on the inner side walls of the side supports.

[0006] The feeding bin above the outlet is formed with a discharging groove, the inner wall of the feeding bin above the discharging groove is formed with an inlet groove, the outer wall of the feeding bin is fixed with an inlet hopper which is opposite to the inlet groove and is obliquely arranged, the side wall of the bottom end of the inlet hopper is formed with a transverse sealing groove, the upper side of the baffle plate is formed with an upwardly extending arc-shaped valve plate, the upper end of the arc-shaped valve plate is inserted into the sealing groove of the inlet hopper, the outer wall of the rear side of the feeding bin is fixed with a longitudinal lug, the rear end of the lug is inserted into the "Fang" shaped connector and is hinged to the connector through a hinge shaft, the rear upper side of the feeding bin is provided with a transverse support shaft, the two ends of the support shaft are respectively inserted into the support plates, a cylindrical and obliquely arranged air cylinder is screwed to the middle part of the support shaft, the piston rod of the air cylinder is extended and is fixed to the connector.

[0007] Preferably, the diameter of the positioning boss on the support plate is equal to the diameter of the inner wall of the feeding bin.

[0008] Preferably, the discharging groove or the inlet groove on the feeding bin is located between the positioning bosses of the two support plates, and the length of the discharging groove or the inlet groove is not greater than the spacing between the positioning bosses.

[0009] Preferably, the center of the arc of the baffle plate is located on the central axis of the feeding bin, and the diameter of the inner wall of the baffle plate is equal to the diameter of the outer wall of the feeding bin.

[0010] Preferably, the length of the outlet on the baffle plate is not less than the length of the discharging groove on the feeding bin.

[0011] Preferably, the inner wall of the baffle plate and the inner wall of the arc-shaped valve plate are in the same cylindrical surface, and the thickness of the arc-shaped valve plate is less than the thickness of the baffle plate.

[0012] Preferably, the spacing between the front side of the outlet on the baffle plate and the upper side of the discharging groove on the feeding bin is equal to the spacing between the upper side of the arc-shaped valve plate and the upper inner wall of the inlet hopper.

[0013] Preferably, the outer wall of the middle part of the support shaft is formed with a cutting groove, and the cylinder body of the air cylinder abuts against the bottom surface of the cutting groove.

[0014] The present application has the beneficial effect that a transmission type feeding device is designed for a rubber internal mixer, which can avoid the harmful gas in the internal mixer from escaping and causing harm to the workers during feeding. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0016] Figure 2 is a schematic diagram of the front view structure of the present application;

[0017] Figure 3 is Figure 2 is a schematic diagram of the sectional structure at A-A in the present application;

[0018] Figure 4 Structure diagram of the application from side view;

[0019] Figure 5 Structure diagram of the application from side view; Figure 4 Structure diagram of the application from side view;

[0020] In the figure: 1, support plate; 11, positioning boss; 12, mounting plate; 13, mounting hole; 2, feeding bin; 21, feeding groove; 22, discharging groove; 3, material blocking plate; 31, outlet; 32, arc-shaped valve plate; 4, feeding hopper; 5, sealing plate; 6, ear plate; 7, connecting head; 8, air cylinder; 9, supporting shaft; 91, cutting groove. DETAILED DESCRIPTION

[0021] Embodiment: see Figures 1 to 5 As shown in the figure, a feeding device on a rubber mixing machine comprises a feeding opening on the rubber mixing machine, and side-standing and opposite support plates 1 are arranged on both sides of the feeding opening. A transversely cylindrical feeding bin 2 is inserted between the support plates 1, and the two side end faces of the feeding bin 2 abut against the support plates 1. A circular positioning boss 11 is formed on the inner side wall of the support plate 1, and the positioning boss 11 is inserted into the feeding bin 2. An arc-shaped material blocking plate 3 abuts against the outer wall of the lower end of the feeding bin 2. The bottom end of the material blocking plate 3 is formed with an outlet 31 opposite to the feeding opening. The material blocking plate 3 on the front and rear sides of the outlet 31 is fixed with an obliquely arranged sealing plate 5. The two sides of the sealing plate 5 and the two sides of the material blocking plate 3 are respectively fixed on the inner side wall of the support plate 1.

[0022] A discharging groove 22 is formed on the feeding bin 2 above the outlet 31. A feeding groove 21 is formed on the inner wall of the feeding bin 2 above the discharging groove 22. A feeding hopper 4 opposite to the feeding groove 21 and obliquely arranged is fixed on the outer wall of the feeding bin 2. A transversely sealing groove is formed on the side wall of the bottom end of the feeding hopper 4. An upper side of the material blocking plate 3 is formed with an upwardly extending arc-shaped valve plate 32, and the upper end of the arc-shaped valve plate 32 is inserted into the sealing groove of the feeding hopper 4. A longitudinally ear plate 6 is fixed on the outer wall of the rear side of the feeding bin 2. The rear end of the ear plate 6 is inserted into a “”-shaped connecting head 7 and is hingedly connected with the connecting head 7 through a hinge shaft. A transversely supporting shaft 9 is arranged above the rear side of the feeding bin 2. The two ends of the supporting shaft 9 are respectively inserted into the support plates 1. A cylindrical and obliquely formed air cylinder 8 is screwed on the middle part of the supporting shaft 9. The piston rod of the air cylinder 8 extends out and is fixed with the connecting head 7.

[0023] The diameter of the positioning boss 11 on the support plate 1 is equal to the diameter of the inner wall of the feeding bin 2.

[0024] The discharging groove 22 or the feeding groove 21 on the feeding bin 2 is located between the positioning bosses 11 of the two support plates 1. The length of the discharging groove 22 or the feeding groove 21 is not greater than the spacing between the positioning bosses 11.

[0025] The center of the arc of the baffle plate 3 is located on the central axis of the charging bin 2, and the diameter of the inner wall of the baffle plate 3 is equal to the diameter of the outer wall of the charging bin 2.

[0026] The length of the outlet 31 on the baffle plate 3 is not less than the length of the discharge groove 22 on the charging bin 2.

[0027] The inner wall of the baffle plate 3 and the inner wall of the arc-shaped valve plate 32 are in the same cylindrical surface, and the thickness of the arc-shaped valve plate 32 is less than the thickness of the baffle plate 3.

[0028] The distance between the front side of the outlet 31 on the baffle plate 3 and the upper side of the discharge groove 22 on the charging bin 2 is equal to the distance between the upper side of the arc-shaped valve plate 32 and the upper inner wall of the charging hopper 4.

[0029] A cutting groove 91 is formed on the outer wall of the middle part of the support shaft 9, and the cylinder body of the air cylinder 8 abuts against the bottom surface of the cutting groove 91.

[0030] A horizontal mounting plate 12 is formed on the outer wall of the lower end of the support plate 1 by bending, a plurality of mounting holes 13 are formed on the mounting plate 12, and the lower end surface of the sealing plate 5 is flush with the lower end surface of the mounting plate 12.

[0031] Working principle: the present application is a charging device on a rubber internal mixer, and its structure is shown in Figure 1 The charging process is described in combination with the drawings Figure 3 .

[0032] During charging, the material for internal mixing can be added into the charging hopper 4, the material enters the charging bin 2 from the feeding groove 21, then the air cylinder 8 is started, the piston rod of the air cylinder 8 is retracted, and the charging bin 2 is driven to rotate counterclockwise, when the discharge groove 22 on the charging bin 2 coincides with the outlet 31 of the baffle plate 3, at the same time, the arc-shaped valve plate 32 on the baffle plate 3 also realizes the sealing of the charging hopper 4; thus, the material in the charging bin 2 can enter the charging port of the internal mixer through the discharge groove 22 and the outlet 31, and the harmful gas in the internal mixer cannot come out from the charging hopper 4.

[0033] The embodiments are used to illustrate the present application, but not to limit the present application. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present application, and therefore, the protection scope of the present application should be subject to the claims of the present application.

Claims

1. A feeding device on a rubber mixing mill, comprising a feeding port on the rubber mixing mill, and side vertical and opposite support plates (1) arranged on both sides of the feeding port, characterized in that: A transverse cylindrical feeding bin (2) is inserted between the support plates (1). The two end faces of the feeding bin (2) respectively abut against the support plates (1). Circular positioning bosses (11) are formed on the inner side walls of the support plates (1), and the positioning bosses (11) are inserted into the feeding bin (2); An arc-shaped baffle plate (3) abuts against the outer wall at the lower end of the feeding bin (2). An outlet (31) facing the feeding port is formed at the bottom end of the baffle plate (3). Obliquely arranged sealing plates (5) are fixed on the baffle plate (3) on the front and rear sides of the outlet (31). The two sides of the sealing plate (5) and the two sides of the baffle plate (3) are respectively fixed on the inner side walls of the support plates (1); A discharge chute (22) is formed on the feeding bin (2) above the front upper side of the outlet (31). A feed chute (21) is formed on the inner wall of the feeding bin (2) above the discharge chute (22). A feeding hopper (4) which is obliquely arranged and opposite to the feed chute (21) is fixed on the outer wall of the feeding bin (2). A transverse sealing groove is formed on the side wall at the bottom end of the feeding hopper (4). An arc-shaped valve plate (32) extending upward is formed on the upper side edge of the baffle plate (3), and the upper end of the arc-shaped valve plate (32) is inserted into the sealing groove of the feeding hopper (4); A longitudinal ear plate (6) is fixed on the outer wall at the rear side of the feeding bin (2). The rear end of the ear plate (6) is inserted into a "C"-shaped connector (7) and is hinged to the connector (7) through a hinge shaft. A transverse support shaft (9) is arranged above the rear side of the feeding bin (2). The two ends of the support shaft (9) are respectively inserted into the support plates (1). A cylindrical and obliquely arranged air cylinder (8) is screwed in the middle of the support shaft (9). The piston rod of the air cylinder (8) extends out and is fixedly connected to the connector (7); The center of the arc of the baffle plate (3) is located on the central axis of the feeding bin (2). The diameter of the inner wall of the baffle plate (3) is equal to the diameter of the outer wall of the feeding bin (2); The length of the outlet (31) on the baffle plate (3) is not less than the length of the discharge chute (22) on the feeding bin (2); The inner walls of the baffle plate (3) and the arc-shaped valve plate (32) are within the same cylindrical surface, and the thickness of the arc-shaped valve plate (32) is less than the thickness of the baffle plate (3).

2. A rubber mixing mill feeding device according to claim 1, characterized in that: The diameter of the positioning boss (11) on the support plate (1) is equal to the diameter of the inner wall of the feeding bin (2).

3. A rubber mixing mill feeder as claimed in claim 2 wherein: The discharge chute (22) or the feed chute (21) on the feeding bin (2) is located between the positioning bosses (11) of the two support plates (1), and the length of the discharge chute (22) or the feed chute (21) is not greater than the distance between the positioning bosses (11).

4. The feeding device for a rubber internal mixer according to claim 1, characterized in that: The distance between the front side edge of the outlet (31) on the baffle plate (3) and the upper side edge of the discharge chute (22) on the feeding bin (2) is equal to the distance between the upper side edge of the arc-shaped valve plate (32) and the upper inner side wall of the feeding hopper (4).

5. The feeding device for a rubber internal mixer according to claim 1, characterized in that: A cut groove (91) is formed on the outer wall in the middle of the support shaft (9), and the cylinder block of the air cylinder (8) abuts against the bottom surface of the cut groove (91).

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