阅读说明：本技术 一种饲料下料用气力输送管道的匀速下料机构 (Uniform-speed discharging mechanism of pneumatic conveying pipeline for feed discharging ) 是由 姜明君 李鑫 黄河 王萍 于 2019-10-23 设计创作，主要内容包括：本发明提供了一种饲料下料用气力输送管道的匀速下料机构,属于物料下料机构技术领域。其技术方案为：一种饲料下料用气力输送管道的匀速下料机构,其中,包括阀体组件,以及容纳阀体组件的箱体,箱体上、下端分别连接下料筒；箱体的一侧端面上设置箱体盖,箱体盖上设置控制按钮。本发明的有益效果为：本发明提供一种饲料下料用气力输送管道的匀速下料机构防止物料在气力输送管道内堆积、操作方便、快捷、省力。(The invention provides a uniform-speed blanking mechanism of a pneumatic conveying pipeline for blanking feed, and belongs to the technical field of material blanking mechanisms. The technical scheme is as follows: a constant-speed blanking mechanism of a pneumatic conveying pipeline for blanking feed comprises a valve body assembly and a box body for accommodating the valve body assembly, wherein the upper end and the lower end of the box body are respectively connected with a blanking barrel; a box cover is arranged on one side end face of the box body, and a control button is arranged on the box cover. The invention has the beneficial effects that: the invention provides a uniform-speed blanking mechanism of a pneumatic conveying pipeline for blanking feed, which prevents materials from being accumulated in the pneumatic conveying pipeline and is convenient, rapid and labor-saving to operate.)

1. The uniform-speed blanking mechanism of the pneumatic conveying pipeline for blanking the feed is characterized by comprising a valve body assembly and a box body (5) for accommodating the valve body assembly, wherein the upper end and the lower end of the box body (5) are respectively connected with a blanking barrel (6); a box body cover (51) is arranged on one side end face of the box body (5), and a control button (52) is arranged on the box body cover;

the valve body assembly includes a valve body component and a control component.

2. The uniform speed blanking mechanism of the pneumatic conveying pipeline for blanking the feed as claimed in claim 1, wherein the valve body component comprises a ball valve (10), a valve body box (4) for accommodating the ball valve (10), and a rotary cylinder valve (20) sleeved in the ball valve (10);

the ball valve (10) comprises a ball valve body (1001), a ball valve shaft (1002), a first shaft hole (1006) formed along the axial direction of the ball valve shaft (1002), a cylindrical body (1003) arranged on the circumference of the ball valve shaft (1002) and connected with the ball valve body (1001), a first through hole (1004) and a plurality of first adjusting holes (1005) formed along the radial direction of the ball valve shaft (1002) and the radial direction of the ball valve shaft (1001), and the axial line of the first through hole (1004) is perpendicular to the axial lines of the first adjusting holes (1005); the inner diameter of the first through hole (1004) is the same as that of the lower charging barrel (6), and the ball valve body (1001), the ball valve shaft (1002) and the cylindrical body (1003) are matched with the inner wall of the valve body box (4);

the rotary cylinder valve (20) comprises a rotary cylinder valve body (2001), a rotary cylinder valve shaft (2002) and a second through hole (2003) and a plurality of second adjusting holes (2004) which are formed in the rotary cylinder valve body (2001) in the radial direction of the rotary cylinder valve shaft (2002) respectively, wherein the axis of the second through hole (2003) is perpendicular to the axis of the second adjusting holes (2004); the inner diameter of the second through hole (2003) is the same as that of the feeding barrel (6), the rotary barrel valve body (2001) is sleeved in the ball valve (10), and the rotary barrel valve shaft (2002) and the first shaft hole (1006) are mutually matched in a rotating mode;

the constant-speed blanking mechanism of the pneumatic conveying pipeline for blanking the feed is characterized in that the control component comprises a first control mechanism (1) for controlling the ball valve (10), a second control mechanism (2) for controlling the rotary cylinder valve (20) and a check mechanism arranged between the first control mechanism (1) and the second control mechanism (2);

the first control mechanism (1) comprises a first knob (15) connected to the end of the ball valve shaft (1002), and a drive assembly driving the first knob (15);

the second control mechanism (2) comprises a second knob (23) connected to the end part of the shaft of the rotary cylinder valve (20), and a speed reducing mechanism connected to the second knob (23), wherein the speed reducing mechanism is driven by a second motor;

the speed reducing mechanism comprises a speed reducing belt pulley (22) connected to the end face of the second knob (23), and a belt transmission mechanism (21) connected between the speed reducing belt pulley (22) and the driving shaft of the second motor.

3. The constant-speed blanking mechanism of the pneumatic conveying pipeline for blanking the feed as claimed in any one of claims 1 to 3, wherein the driving assembly comprises a one-way ratchet mechanism connected with the first knob (15) and a driving mechanism for driving the one-way ratchet mechanism;

the one-way ratchet mechanism comprises a plurality of limiting grooves uniformly formed in the circumferential direction of the first knob (15), a shifting block (14) with a free end portion buckled with the limiting grooves, and a supporting block (13) with one end face hinged with the shifting block (14), wherein one side of the other end face of the supporting block (13) is hinged on the box body (5) on one side of the first knob (15).

4. The constant speed blanking mechanism of the pneumatic conveying pipeline for blanking the feed as claimed in any one of claims 1 to 4, wherein the driving mechanism is a cam mechanism comprising a roller (12) hinged on the other side of the other end surface of the supporting block (13) and a cam (11) abutted against the roller (12), and the cam (11) is driven by a first motor.

5. The constant-speed blanking mechanism of the pneumatic conveying pipeline for blanking feed as claimed in any one of claims 1 to 5, wherein the non-return mechanism comprises a diagonal support member (24) arranged between the first knob (15) and the second knob (23) and abutting against the inner circumferential side of the first knob (15) and the outer circumferential side of the second knob (23), a tension spring (26) connected between one end of the diagonal support member (24) and the second knob (23), and a wedge block (25) arranged between the second knob (23) and the diagonal support member (24).

6. The uniform speed blanking mechanism of the pneumatic conveying pipeline for blanking the feed according to any one of claims 1 to 6, wherein the second knob (23) comprises a second knob body (2301), a second shaft hole (2305) formed in an end face of the second knob body (2301), a first groove (2304) formed in a circumferential outer side face of the second knob body (2301), a boss (2302) formed in the circumferential outer side face of the second knob body (2301), and a first connecting column (2303) formed on the boss (2302); the first groove (2304) and the wedge block (25) are buckled with each other, and the tension spring (26) is connected to the first connecting column (2303).

7. The constant-speed blanking mechanism of the pneumatic conveying pipeline for blanking feeds as claimed in any one of claims 1 to 7, wherein the diagonal support member (24) comprises a limiting block (2401), a diagonal block (2402) arranged at one side of the limiting block (2401), a second groove (2404) formed on the inner side surface of the diagonal block (2402), and a second connecting column (2403) arranged at the end part of the diagonal block (2402); the second groove (2404) is matched with the wedge block (25), and the tension spring (26) is connected to the second connecting column (2403); the inner side surface of the limiting block (2401) is a plane and is in contact with the outer circumferential side surface of the second knob (23), and the outer side surface of the limiting block (2401) is an arc surface and is in contact with the inner circumferential side surface of the first knob (15).

8. The constant-speed blanking mechanism of the pneumatic conveying pipeline for blanking feeds as claimed in any one of claims 1 to 8, wherein an anti-slip layer is arranged at the end of the outer side surface of the limiting block (2401).

9. The uniform speed blanking mechanism of the pneumatic conveying pipeline for blanking the feed as claimed in any one of claims 1 to 9, wherein the valve body assembly further comprises an auxiliary control component (3) arranged below the valve body component;

the auxiliary control component (3) comprises a fixed cylinder (33) arranged on the lower end face of the valve body box (4), a shifting ring (32) sleeved on the outer circumference of the fixed cylinder (33), a shifting rod (31) arranged on the outer circumference of the shifting ring (32), a plurality of buckling valves (35) which are respectively hinged on the lower end face of the fixed cylinder (33) and are close to the inner circumference of the fixed cylinder (33), and a plurality of arc-shaped connecting rods (34) of which the two ends are respectively hinged on the free end part of each buckling valve (35) and the lower end face of the shifting ring (32); the buckling valves (35) are arranged along the circumferential direction of the inner circle of the fixed cylinder (33); and a sliding groove (36) matched with the shifting rod (31) is arranged on the box body (5).

Technical Field

The invention relates to the technical field of material blanking mechanisms, in particular to a uniform-speed blanking mechanism of a pneumatic conveying pipeline for blanking feed.

Background

The pneumatic conveying is a fluidization technology application mode for conveying granular materials in an air flow direction in a closed pipeline by utilizing the energy of air flow, and is widely applied to industries such as feed, chemical engineering, medicine and the like. Adopt pneumatic conveying system to carry the material in the feed bin, because material type and crushing condition are different, in pipeline, mobility when each defeated pay-off moves along the air current direction is different, current pneumatic conveying pipeline does not set up at the uniform velocity unloading mechanism mostly, material in the material package is from the feed opening after, in pneumatic conveying pipeline along the air current or gravity flow, make the better material of mobility, it blocks up even to appear piling up the phenomenon in pneumatic conveying system, influence the continuity of carrying the material, cause inefficiency or even production accident.

How to solve the above technical problems is the subject of the present invention.

Disclosure of Invention

The invention aims to provide a constant-speed blanking mechanism of a pneumatic conveying pipeline for blanking feed, which can prevent materials from being accumulated in the pneumatic conveying pipeline and is convenient, quick and labor-saving to operate.

The invention is realized by the following measures: a constant-speed blanking mechanism of a pneumatic conveying pipeline for blanking feed comprises a valve body assembly and a box body for accommodating the valve body assembly, wherein the upper end and the lower end of the box body are respectively connected with a blanking barrel; a box cover is arranged on one side end face of the box body, and a control button is arranged on the box cover;

the valve body assembly comprises a valve body component and a control component;

the invention is characterized in that the valve body part comprises a ball valve, a valve body box for accommodating the ball valve and a rotary cylinder valve sleeved in the ball valve;

the ball valve comprises a ball valve body, a ball valve shaft, a first shaft hole formed along the axial direction of the ball valve shaft, a cylindrical body arranged in the circumferential direction of the ball valve shaft and connected with the ball valve body, and a first through hole and a plurality of first adjusting holes respectively formed along the radial direction of the ball valve body and the radial direction of the ball valve shaft, wherein the axial line of the first through hole is vertical to the axial lines of the first adjusting holes; the inner diameter of the first through hole is the same as that of the lower charging barrel, and the ball valve body, the ball valve shaft and the columnar body are matched with the inner wall of the valve body box;

the rotary cylinder valve comprises a rotary cylinder valve body, a rotary cylinder valve shaft and a second through hole and a plurality of second adjusting holes which are formed in the rotary cylinder valve body and are arranged along the radial direction of the rotary cylinder valve shaft respectively, and the axis of the second through hole is vertical to the axis of the second adjusting holes; the inner diameter of the second through hole is the same as that of the feeding barrel, the rotary barrel valve body is sleeved in the ball valve, and the rotary barrel valve shaft is mutually matched with the first shaft hole in a rotating manner;

when the valve body component is not needed to influence materials in the pneumatic conveying pipeline, the axis of the first through hole and the axis of the second through hole are coincided with the axis of the charging barrel; when the valve body component is required to influence materials in the pneumatic conveying pipeline, the ball valve is rotated, or the rotary cylinder valve is rotated, or the ball valve and the rotary cylinder valve are simultaneously rotated according to the flowability of the materials, and through the cooperation among the first through hole, the first adjusting hole, the second through hole and the second adjusting hole, the control of the material flow in the pneumatic conveying pipeline is achieved, and the effect of uniform-speed blanking is achieved.

The invention is characterized in that the control part comprises a first control mechanism for controlling the ball valve, a second control mechanism for controlling the rotary cylinder valve and a check mechanism arranged between the first control mechanism and the second control mechanism;

the first control mechanism comprises a first knob connected to the end part of the ball valve shaft and a driving component for driving the first knob;

the second control mechanism comprises a second knob connected to the end part of the rotary cylinder valve shaft and a speed reducing mechanism connected to the second knob, and the speed reducing mechanism is driven by a second motor;

the speed reducing mechanism comprises a speed reducing belt pulley connected to the end face of the second knob and a belt transmission mechanism connected between the speed reducing belt pulley and a driving shaft of the second motor.

The invention is characterized in that the driving component comprises a one-way ratchet mechanism connected with the first knob and a driving mechanism for driving the one-way ratchet mechanism; the one-way ratchet mechanism can control the first knob to rotate only in one direction, and the ball valve is convenient to control.

The one-way ratchet mechanism comprises a plurality of limiting grooves uniformly formed along the circumferential direction of the first knob, a shifting block with a free end part buckled with the limiting grooves, and a supporting block with one end surface hinged with the shifting block, wherein one side of the other end surface of the supporting block is hinged on the box body on one side of the first knob.

The invention is particularly characterized in that the driving mechanism is a cam mechanism and comprises a roller wheel hinged to the other side of the other end surface of the supporting block and a cam abutted against the roller wheel, and the cam is driven by a first motor.

The invention is characterized in that the non-return mechanism comprises a diagonal support piece which is arranged between the first knob and the second knob and is in contact with the inner circumferential side surface of the first knob and the outer circumferential side surface of the second knob, a tension spring which is connected between one end of the diagonal support piece and the second knob, and a wedge block which is arranged between the second knob and the diagonal support piece.

The invention is characterized in that the second knob comprises a second knob body, a second shaft hole arranged on the end surface of the second knob body, a first groove arranged on the outer side surface of the circumference of the second knob body, a boss arranged on the outer side surface of the circumference of the second knob body and a first connecting post arranged on the boss; the first groove is buckled with the wedge block, and the tension spring is connected to the first connecting column.

The invention is particularly characterized in that the diagonal support piece comprises a limiting block, a diagonal block arranged on one side of the limiting block, a second groove arranged on the inner side surface of the diagonal block, and a second connecting column arranged at the end part of the diagonal block; the second groove is matched with the wedge block, and the tension spring is connected to the second connecting column; the inner side surface of the limiting block is a plane and is in contact with the outer circumferential side surface of the second knob, and the outer side surface of the limiting block is an arc surface and is in contact with the inner circumferential side surface of the first knob.

The invention is characterized in that the end part of the outer side surface of the limiting block is provided with an anti-skid layer.

The invention is characterized in that the valve body assembly also comprises an auxiliary control component arranged below the valve body component;

the auxiliary control component comprises a fixed cylinder arranged on the lower end face of the valve body box, a shifting ring sleeved on the outer circumference of the fixed cylinder, a shifting rod arranged on the outer circumference of the shifting ring, a plurality of buckling valves which are respectively hinged on the lower end face of the fixed cylinder and are close to the inner circumference of the fixed cylinder, and a plurality of arc-shaped connecting rods of which the two ends are respectively hinged on the free end part of each buckling valve and the lower end face of the shifting ring; the buckling valves are circumferentially arranged along the inner circle of the fixed cylinder; the box body is provided with a sliding chute matched with the shifting rod.

The invention is particularly characterized in that the sliding groove is arranged on the lower end face of the box body.

When the invention is actually used: according to the fluidity of the pre-blanking material, the matching condition of the first through hole, the first adjusting hole, the second through hole and the second adjusting hole is judged, the deflector rod is pulled along the chute, the shifting ring connected with the shifting rod rotates along with the shifting ring, the arc-shaped connecting rod connected with the lower end surface of the shifting ring drives the buckling valve connected with the shifting ring to deflect along the hinged shaft of the buckling valve on the lower end surface of the fixed cylinder body until the buckling valve is closed, the first motor is started, the cam which is coaxial with the output shaft of the first motor rotates, the roller which is in contact fit with the cam drives the supporting block which is hinged with the cam, the support block is used as a shaft to deflect at the hinged part on the box body, the shifting block hinged at the upper end part of the support block is propped against the limiting groove in contact connection with the support block to drive the first knob to rotate, namely, a ball valve shaft connected with the knob drives the ball valve to rotate, and the deflection angle between the axis of the first through hole and the axis of the lower charging barrel is adjusted; in the process, the non-return mechanism is arranged between the first control mechanism and the second control mechanism, so that the first knob and the second knob do not interfere with each other, namely, when the first knob rotates, the friction force between the inner circumferential surface of the first knob and the limiting block even generates a gap, and the limiting block and the first knob slide or move relatively.

If the deflection angle between the axis of the second through hole and the axis of the blanking barrel needs to be adjusted, a second motor is started and the rotation direction of the second motor is selected, the second motor drives a belt transmission mechanism to drive a speed reduction belt pulley to drive a second knob to rotate along the direction opposite to the rotation direction of the first knob, and a rotary barrel valve shaft connected with the first knob drives a rotary barrel valve to rotate; because set up contrary mechanism that ends between first control mechanism and the second control mechanism, mutual noninterference between second knob and the first knob this moment, when first knob rotated promptly, the extension spring was in shrink state or compression state, and oblique pull block promotes the voussoir and takes place to deflect to the stopper direction, and the frictional force between the lateral surface of stopper and the inner circumferential surface of first knob reduces and even the clearance appears simultaneously, slides or relative motion between stopper and the first knob. After the adjustment process is finished, the first motor and the second motor are closed, the blanking operation is started, the deflector rod is stirred along the sliding groove, the buckling valve is slowly opened, the opening degree of the buckling valve is adjusted as required until the material in the pneumatic conveying pipeline is at a constant speed.

When the included angle between the axis of the first through hole and the axis of the second through hole does not need to be adjusted, and only the ball valve and the rotary cylinder valve need to be rotated simultaneously, the second motor is started, the opposite rotating direction of the single-adjustment rotary cylinder valve is selected, at the moment, when the first knob rotates, the tension spring is in a stretching state, the inclined pulling block is pulled to rotate along with the inclined pulling block, the inclined pulling block pulls the wedge block to deflect in the direction away from the limiting block, meanwhile, the friction force between the outer side face of the limiting block and the inner circumferential face of the first knob is increased, and the first knob is driven to rotate in the same direction.

The invention has the beneficial effects that: according to the invention, through the arrangement of the ball valve and the rotary cylinder valve and the matching of the first through hole, the first adjusting hole, the second through hole and the second adjusting hole, the flow of different materials during blanking is regulated and controlled, and the effect of uniform blanking is achieved; the ball valve and the rotary cylinder valve can be adjusted in deflection angle respectively by arranging the one-way ratchet mechanism control ball valve, the belt transmission mechanism control rotary cylinder valve and the check mechanism between the two control mechanisms, the operation is convenient, and the ball valve and the rotary cylinder valve can be simultaneously controlled by the belt transmission mechanism when the included angle between the axis of the first through hole and the axis of the second through hole does not need to be adjusted, so the operation is fast; by arranging the auxiliary control component, the accumulation of materials in the pneumatic conveying pipeline caused by the unadjusted valve body component is prevented, and the flow of the materials in the pneumatic conveying pipeline can be further controlled, so that the accumulation of the materials in a pneumatic conveying system is prevented; the sliding groove matched with the shifting rod is arranged on the lower end face of the box body, so that on one hand, a dustproof effect can be achieved, and on the other hand, the operation of operators is convenient and labor-saving.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a partial structural diagram in the embodiment of the present invention.

Fig. 3 is a partial structural diagram in an embodiment of the invention.

Fig. 4 is a schematic diagram of a connection relationship between the first control mechanism and the second control mechanism in the embodiment of the present invention.

Fig. 5 is a schematic diagram of a positional relationship between the valve body and the valve body box in the embodiment of the present invention.

Fig. 6 is a cross-sectional view of a ball valve in an embodiment of the invention taken along the axis of the ball valve.

Fig. 7 is a schematic structural diagram of a ball valve in an embodiment of the present invention.

Fig. 8 is a schematic structural view of a spin valve in an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a second knob in the embodiment of the present invention.

Fig. 10 is a schematic structural view of the diagonal stay in the embodiment of the present invention.

Fig. 11 is a schematic structural diagram of an auxiliary control unit in the embodiment of the present invention.

Wherein the reference numerals are: 1. a first control mechanism; 10. a ball valve; 1001. a ball valve body; 1002. a ball valve shaft; 1003. a columnar body; 1004. a first through hole; 1005. a first adjustment aperture; 1006. a first shaft hole; 11. A cam; 12. a roller; 13. a support block; 14. shifting blocks; 15. a first knob; 2. a second control mechanism; 20. a rotary cylinder valve; 2001. a spin valve body; 2002. a rotary cylinder valve shaft; 2003. a second through hole; 2004. a second adjustment aperture; 21. a belt drive mechanism; 22. a reduction pulley; 23. a second knob; 2301. a second knob body; 2302. a boss; 2303. a first connecting column; 2304. a first groove; 2305. a shaft; 24. a diagonal stay member; 2401. a limiting block; 2402. a cable-stayed block; 2403. a second connecting column; 2404. a second groove; 25. a wedge block; 26. a tension spring; 3. an auxiliary control part; 31. dialing a strip; 32. ring shifting; 33. fixing the cylinder; 34. an arc-shaped connecting rod; 35. buckling the valve; 36. a chute; 4. a valve body case; 5. a box body; 51. a box cover; 52. a button; 6. and (5) discharging the charging barrel.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Referring to fig. 1 to 11, the present invention is: a uniform-speed blanking mechanism of a pneumatic conveying pipeline for blanking feed comprises a valve body assembly and a box body 5 for accommodating the valve body assembly, wherein the upper end and the lower end of the box body 5 are respectively connected with a blanking barrel 6; a box cover 51 is arranged on one side end face of the box body 5, and a control button 52 is arranged on the box cover;

the valve body assembly comprises a valve body part and a control part;

the valve body components comprise a ball valve 10, a valve body box 4 for accommodating the ball valve 10 and a rotary cylinder valve 20 sleeved in the ball valve 10;

the ball valve 10 comprises a ball valve body 1001, a ball valve shaft 1002, a first shaft hole 1006 formed along the axial direction of the ball valve shaft 1002, a cylindrical body 1003 arranged on the circumference of the ball valve shaft 1002 and connected with the ball valve body 1001, a first through hole 1004 and a plurality of first adjusting holes 1005 formed along the radial direction of the ball valve body 1001 and the radial direction of the ball valve shaft 1002 respectively, wherein the axial line of the first through hole 1004 is perpendicular to the axial lines of the plurality of first adjusting holes 1005; the inner diameter of the first through hole 1004 is the same as that of the blanking cylinder 6, and the ball valve body 1001, the ball valve shaft 1002 and the columnar body 1003 are matched with the inner wall of the valve body box 4;

the rotary cylinder valve 20 comprises a rotary cylinder valve body 2001, a rotary cylinder valve shaft 2002 and a second through hole 2003 and a plurality of second adjusting holes 2004 which are arranged on the rotary cylinder valve body 2001 and are arranged along the radial direction of the rotary cylinder valve shaft 2002 respectively, and the axis of the second through hole 2003 is vertical to the axis of the second adjusting holes 2004; the inner diameter of the second through hole 2003 is the same as that of the blanking barrel 6, the rotary barrel valve body 2001 is sleeved in the ball valve 10, and the rotary barrel valve shaft 2002 and the first shaft hole 1006 are in mutual rotating fit;

the control part comprises a first control mechanism 1 for controlling the ball valve 10, a second control mechanism 2 for controlling the rotary cylinder valve 20 and a non-return mechanism arranged between the first control mechanism 1 and the second control mechanism 2;

the first control mechanism 1 includes a first knob 15 attached to an end of the ball valve shaft 1002, and a drive assembly that drives the first knob 15;

the second control mechanism 2 comprises a second knob 23 connected with the end part of the shaft of the rotary cylinder valve 20 and a speed reducing mechanism connected with the second knob 23, and the speed reducing mechanism is driven by a second motor;

the speed reducing mechanism includes a speed reducing pulley 22 connected to an end surface of the second knob 23, and a belt transmission mechanism 21 connecting between the speed reducing pulley 22 and a drive shaft of the second motor.

The invention is also particularly characterized in that the drive assembly comprises a one-way ratchet mechanism connected to the first knob 15 and a drive mechanism for driving the one-way ratchet mechanism;

the one-way ratchet mechanism comprises a plurality of limiting grooves uniformly formed in the circumferential direction of the first knob 15, a shifting block 14 with a free end part buckled with the limiting grooves, and a supporting block 13 with one end surface hinged with the shifting block 14, wherein one side of the other end surface of the supporting block 13 is hinged on the box body 5 on one side of the first knob 15.

The invention is also characterized in that the driving mechanism is a cam mechanism, and comprises a roller 12 hinged on the other side of the other end surface of the supporting block 13 and a cam 11 abutted against the roller 12, and the cam 11 is driven by a first motor.

Also, the check mechanism includes a slanted support 24 disposed between the first knob 15 and the second knob 23 and abutting against both an inner circumferential side of the first knob 15 and an outer circumferential side of the second knob 23, a tension spring 26 connected between one end of the slanted support 24 and the second knob 23, and a wedge 25 disposed between the second knob 23 and the slanted support 24.

The invention is also characterized in that the second knob 23 comprises a second knob body 2301, a second shaft hole 2305 arranged on the end face of the second knob body 2301, a first groove 2304 arranged on the outer side surface of the circumference of the second knob body 2301, a boss 2302 arranged on the outer side surface of the circumference of the second knob body 2301, and a first connecting column 2303 arranged on the boss 2302; the first recess 2304 and the wedge 25 are engaged with each other, and the first connecting column 2303 is connected with a tension spring 26.

The invention is also characterized in that the diagonal stay piece 24 comprises a limiting block 2401, a diagonal stay block 2402 arranged at one side of the limiting block 2401, a second groove 2404 arranged on the inner side surface of the diagonal stay block 2402 and a second connecting column 2403 arranged at the end part of the diagonal stay block 2402; the second groove 2404 is matched with the wedge 25, and the second connecting column 2403 is connected with a tension spring 26; the inner side surface of the stopper 2401 is a plane and contacts with the outer circumferential side surface of the second knob 23, and the outer side surface of the stopper 2401 is an arc surface and contacts with the inner circumferential side surface of the first knob 15.

The invention is particularly characterized in that the end part of the outer side surface of the limiting block 2401 is provided with an anti-slip layer.

The invention is characterized in that the valve body assembly also comprises an auxiliary control component 3 arranged below the valve body component;

the auxiliary control component 3 comprises a fixed cylinder 33 arranged on the lower end face of the valve body box 4, a shifting ring 32 sleeved on the outer circumference of the fixed cylinder 33, a shifting rod 31 arranged on the outer circumference of the shifting ring 32, a plurality of buckling valves 35 which are respectively hinged on the lower end face of the fixed cylinder 33 and are close to the inner circumference of the fixed cylinder 33, and a plurality of arc-shaped connecting rods 34 of which the two ends are respectively hinged on the free end part of each buckling valve 35 and the lower end face of the shifting ring 32; the plurality of buckling valves 35 are circumferentially arranged along the inner circle of the fixed cylinder 33; the box body 5 is provided with a sliding chute 36 matched with the deflector rod 31.

The present invention is also particularly characterized in that the slide groove 36 is provided on the lower end surface of the case 5.

When the invention is actually used: according to the fluidity of the pre-blanking material, the matching conditions of the first through hole 1004, the first adjusting hole 1005, the second through hole 2003 and the second adjusting hole 2004 are judged, the shifting rod 31 is shifted along the chute 36, the shifting ring 32 connected with the shifting rod 31 rotates along with the shifting rod, the arc connecting rod 34 connected with the lower end surface of the shifting ring 32 drives the buckling valve 35 connected with the arc connecting rod, the deflection is generated along the hinging shaft of the buckling valve 35 on the lower end surface of the fixed cylinder 33 until the buckling valve 35 is closed, the first motor is started, the cam 11 coaxial with the output shaft of the first motor rotates, the roller 12 in contact fit with the cam 11 drives the supporting block 13 hinged with the cam 13, the deflection is generated by taking the hinging part of the supporting block 13 on the box body 5 as the shaft, the shifting block 14 hinged at the upper end part of the supporting block 13 is abutted against the limiting groove in contact connection with the cam, the first knob 15 is driven to rotate, namely, the ball valve shaft 1002, adjusting the deflection angle between the axis of the first through hole 1004 and the axis of the lower barrel 6; in the process, as the check mechanism is arranged between the first control mechanism 1 and the second control mechanism 2, the first knob 15 and the second knob 23 do not interfere with each other, that is, when the first knob 15 rotates, the friction force between the inner circumferential surface of the first knob 15 and the limiting block 2401 even generates a gap, and the limiting block 2401 and the first knob 15 slide or move relatively.

If the deflection angle between the axis of the second through hole 2003 and the axis of the blanking barrel 6 needs to be adjusted, the second motor is started and the rotation direction of the second motor is selected, the second motor drives the belt transmission mechanism 21 to drive the speed reduction belt pulley 22 to drive the second knob 23 to rotate along the direction opposite to the rotation direction of the first knob 15, and the rotary barrel valve shaft 2002 connected with the first knob 15 drives the rotary barrel valve 20 to rotate; because the check mechanism is arranged between the first control mechanism 1 and the second control mechanism 2, at this time, the second knob 23 and the first knob 15 do not interfere with each other, that is, when the first knob 15 rotates, the tension spring 26 is in a contracted state or a compressed state, the inclined pulling block 2402 pushes the wedge 25 to deflect towards the direction of the limiting block 2401, meanwhile, the friction between the outer side surface of the limiting block 2401 and the inner circumferential surface of the first knob 15 is reduced, even a gap occurs, and the limiting block 2401 and the first knob 15 slide or move relatively. After the adjustment process is finished, the first motor and the second motor are closed, the blanking operation is started, the shifting lever 31 is shifted along the sliding groove 36, the buckling valve 35 is slowly opened, the opening degree of the buckling valve 35 is adjusted as required until the material in the pneumatic conveying pipeline is at a constant speed.

When the included angle between the axis of the first through hole 1004 and the axis of the second through hole 2003 does not need to be adjusted, and only the ball valve 10 and the rotary cylinder valve 20 need to be rotated simultaneously, the second motor is started, and the opposite rotation direction of the rotary cylinder valve 20 is selected to be adjusted singly, at this time, when the first knob 15 rotates, the tension spring 26 is in a stretching state, and pulls the inclined pulling block 2402 to rotate along with the inclined pulling block 2402, the inclined pulling block 2402 pulls the wedge 25 to deflect in the direction away from the limiting block 2401, and meanwhile, the friction force between the outer side surface of the limiting block 2401 and the inner circumferential surface of the first knob 15 is increased, so that the first knob 15 is driven to.

The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.