A device for feeding granular materials

Abstract

A particle material feeding device includes two mounting plates, a rotating shaft seat and a V-shaped swing frame are installed between the two mounting plates, a rotating shaft is passed through the middle of the rotating shaft seat, one end of the rotating shaft is threadedly connected to the swing shaft hinged on the upper end of the swing frame, a swing arm is connected between the two mounting plates through a swing arm shaft, sliders are respectively mounted on both ends of the swing arm shaft and inserted into longitudinal slide grooves arranged on the two mounting plates through the sliders, the front end of the swing frame is fork-shaped and inserted on the swing arm shaft; a metering base plate is fixed between the front ends of the two mounting plates, a metering cover is hinged at the lower end of the swing arm, a wedge-shaped groove is provided on the metering cover and cooperates with the metering base plate to form a material holding cavity, a blanking cylinder is installed between the two mounting plates through a cylinder seat plate, and the front end of its piston rod is clamped in a long hole arranged in the longitudinal direction at the lower part of the swing arm through a connecting head using a pin shaft. The advantages are: the loading amount can be adjusted manually or automatically to ensure accurate loading; the structure is compact and the operation is reliable.

Description

Technical Field

[0001] The invention relates to a feeding device, in particular to a particle material feeding device with an adjusting function. Background Art

[0002] The granular material feeding device is installed on the granular packaging machine to realize the metering and dropping of granular materials. The existing granular material feeding devices mostly use old-style swing feeding machines, including a motor and a crank slider mechanism. The reciprocating sliding of the crank slider mechanism drives a swing rod to swing left and right. Multiple metering covers corresponding to multiple columns of strips are installed on the swing rod. The metering covers are opened or closed by the swing rod swinging left and right to realize opening or closing. This feeding device is not convenient for adjusting the charging amount and cannot realize automatic adjustment of the charging amount. Moreover, since the old-style swing feeding machine is mostly used in multi-column strip bag packaging machines, problems such as the metering cover not closing tightly due to insufficient processing accuracy, installation errors, and fatigue deformation often occur. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a particle material feeding device which can realize manual or automatic adjustment of the charging amount, has a compact structure, works reliably and has accurate charging amount.

[0004] Granular material feeding device with adjustable function,

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A particle material feeding device comprises two mounting plates parallel to each other, a rotatable rotary shaft seat and a V-shaped swing frame are mounted between the two mounting plates, a rotary shaft is radially penetrated in the middle of the rotary shaft seat, one end of the rotary shaft is threadedly connected to a swing shaft hinged to the upper end of the swing frame, a swing arm is connected between the two mounting plates via a swing arm shaft, sliders are respectively mounted at both ends of the swing arm shaft and inserted into longitudinal slide grooves arranged on the two mounting plates through the sliders, the front end of the swing frame is fork-shaped and is inserted on the swing arm shaft through clearance fit, and is used to drive the swing arm to move up and down when swinging;

[0007] A metering base plate is fixed between the front ends of the two mounting plates, a metering cover is hinged at the lower end of the swing arm, a wedge-shaped groove is provided on the metering cover and cooperates with the metering base plate to form a material containing cavity, a horizontally arranged blanking cylinder is installed between the two mounting plates through a cylinder seat plate, and the front end of the piston rod of the blanking cylinder is clamped in a long hole arranged longitudinally at the lower part of the swing arm through a connecting head using a pin shaft, so as to drive the swing arm to swing so that the metering cover leaves the metering base plate, thereby realizing opening and blanking.

[0008] As a further preference, a drive sleeve is connected to the other end of the rotating shaft via a universal joint for connecting a hand wheel or a motor to achieve manual or automatic adjustment of the charging amount.

[0009] As a further preference, the rotary shaft seat is in the shape of a stepped shaft, and both ends are respectively inserted into corresponding mounting holes on the mounting plate through clearance fit.

[0010] As a further preference, a base shaft is passed between the two mounting plates, and the swing frame is composed of a connecting sleeve and two V-shaped swing plates welded at both ends of the connecting sleeve, and the connecting sleeve is mounted on the base shaft through a bearing sleeve.

[0011] As a further preference, the swing shaft is hinged between the upper ends of the two swing plates, a threaded hole is radially provided in the middle of the swing shaft, and one end of the rotary shaft is connected to the threaded hole by a thread.

[0012] As a further preference, a clamping edge is respectively provided on both sides of the slider, which is clamped on the inner side of the corresponding mounting plate to achieve axial limitation of the slider; an integral sleeve is respectively provided at the inner end of the slider and is sleeved on the swing arm shaft through a clearance fit, and the U-shaped fork at the front end of the swing frame is inserted on the sleeve through a clearance fit.

[0013] As a further preference, the cross-section of the middle part of the swing arm shaft is rectangular, and a long connecting hole is provided in the longitudinal direction on the upper part of the swing arm. The inner side of the swing arm rests on the corresponding plane in the middle part of the swing arm shaft and is fixed to the swing arm shaft with bolts through a clamping block provided on the outside of the swing arm.

[0014] As a further preference, the metering base plate is L-shaped, and is used to cooperate with a discharge pipe to realize discharge.

[0015] As a further preference, the blanking cylinder is a single-acting cylinder and is fixed to the cylinder base plate by a bracket. In the initial state, its piston rod is in an extended state, and is used to push the metering cover close to the vertical surface of the metering bottom plate through a swing arm to keep the material holding chamber closed.

[0016] As a further preference, a square hole is provided in the middle of the cylinder seat plate, the connecting head passes through the square hole, and the front end of the connecting head is fork-shaped and clamped on both sides of the swing arm.

[0017] The beneficial effects of the present invention are:

[0018] 1. Since a rotary shaft is radially penetrated in the middle of the rotary shaft seat, one end of the rotary shaft is threadedly connected to the swing shaft hinged at the upper end of the swing frame, and the other end of the rotary shaft is connected to a handwheel or a motor to drive the rotary shaft to rotate, so as to drive the swing frame to swing back and forth; at the same time, under the action of the swing arm shaft and the sliders arranged at both ends of the swing arm shaft and inserted into the longitudinal slide groove on the mounting plate, the swing arm can be driven to move up and down, thereby driving the metering cover at the lower end of the swing arm to move up and down, and then adjusting the size of the material holding cavity formed by the metering cover and the metering bottom plate; the loading amount can be adjusted manually or automatically to ensure accurate loading.

[0019] 2. Since the front end of the piston rod of the blanking cylinder is clamped in the long hole arranged longitudinally at the lower part of the swing arm through the connecting head using a pin shaft, the swing arm can be driven to swing around the swing arm shaft by starting the blanking cylinder to make the metering cover leave the metering bottom plate, thereby realizing the opening and blanking of the warehouse, with a compact structure and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 yes Figure 1 Top view of the .

[0022] Figure 3 yes Figure 1 Left view of .

[0023] Figure 4 It is a three-dimensional structural diagram of the present invention.

[0024] Figure 5 yes Figure 1 Schematic diagram of the structure without the front mounting plate.

[0025] Figure 6 yes Figure 5 Three-dimensional structure diagram.

[0026] In the figure: mounting plate 1, longitudinal slide groove 101, metering cover 2, metering base plate 3, swing arm 4, connecting long hole 401, long hole 402, swing arm shaft 5, slider 6, clamping edge 601, clamping block 7, rotary shaft 8, swing frame 9, swing shaft 10, rotary shaft seat 11, universal joint 12, drive sleeve 13, base shaft 14, connecting shaft 15, bracket 16, cylinder seat plate 17, connector 18, blanking cylinder 19, material holding chamber 20. DETAILED DESCRIPTION

[0027] like Figure 1-Figure 6 As shown, the present invention relates to a particle material feeding device, comprising two mounting plates 1 with a Z-shaped shape and parallel to each other, and a connecting shaft 15 and a vertically arranged cylinder seat plate 17 are fixed between the two mounting plates 1 by bolts. A rotatable rotary shaft seat 11 and a V-shaped swing frame 9 are installed between the two mounting plates 1, and the rotary shaft seat 11 is in the shape of a stepped shaft, and both ends are respectively inserted into corresponding mounting holes on the mounting plates 1 by clearance fit.

[0028] A through hole is provided in the middle of the rotary shaft seat 11 along the radial direction and a rotary shaft 8 is passed through it through clearance fit. The rotary shaft 8 is limited by a retaining spring after passing through. A base shaft 14 is passed through the two mounting plates 1 and is limited by a split pin. The swing frame 9 is composed of a connecting sleeve and two V-shaped swing plates welded at both ends of the connecting sleeve. The connecting sleeve is mounted on the base shaft 14 through a bearing. A swing shaft 10 is hinged between the upper ends of the two swing plates, and a threaded hole is provided in the middle of the swing shaft 10 along the radial direction.

[0029] The rotating shaft 8 passes through one end of the rotating shaft seat 11 and is threadedly connected to the threaded hole in the middle of the swing shaft 10. An L-shaped swing arm 4 is hinged between the two mounting plates 1 through a swing arm shaft 5. Slide blocks 6 are respectively mounted on both ends of the swing arm shaft 5 through clearance fit and are inserted into the longitudinal slide grooves 101 provided on the two mounting plates 1 through the slide blocks 6. The front ends of the two swing plates of the swing frame 9 are fork-shaped and are inserted on the swing arm shaft 5 through clearance fit, so as to drive the swing arm shaft 5 and the swing arm 4 to move up and down when swinging.

[0030] A clamping edge 601 is provided on both sides of the slider 6, which is clamped on the inner side of the corresponding mounting plate 1 to realize the axial limitation of the slider 6 along the swing arm shaft 5; an integral shaft sleeve is provided at the inner end of the slider 6 and is mounted on the swing arm shaft 5 through a clearance fit, and the U-shaped forks at the front ends of the two swing plates are respectively inserted into the shaft sleeves of the corresponding slider 6 through a clearance fit.

[0031] The cross-section of the middle part of the swing arm shaft 5 is rectangular and is provided with a screw hole. A connecting long hole 401 is provided longitudinally on the upper part of the swing arm 4. The inner side of the swing arm 4 rests on the corresponding plane in the middle part of the swing arm shaft 5 and is fixed to the screw hole in the middle part of the swing arm shaft 5 by bolts through a clamping block 7 provided on the outer side of the swing arm 4. The clamping block 7 is stuck in the connecting long hole.

[0032] An L-shaped metering base plate 3 is fixed between the lower front ends of the two mounting plates 1 by bolts, and is used to cooperate with the discharge pipe to realize material discharge. A wedge-shaped metering cover 2 is hinged at the lower end of the swing arm 4, and a wedge-shaped groove is provided on the metering cover 2 corresponding to the side of the metering base plate 3, and cooperates with the metering base plate 3 to form a material holding chamber 20. A horizontally arranged blanking cylinder 19 is fixedly installed on the cylinder seat plate by a bracket 16, and the front end of the piston rod of the blanking cylinder 19 is clamped in the long hole 402 arranged in the lower part of the swing arm 4 along the longitudinal direction through a connector 18 using a pin shaft, which is used to drive the swing arm 4 to swing so that the metering cover 2 leaves the metering base plate 3, thereby realizing the opening of the warehouse and blanking. A square hole is provided in the middle of the cylinder seat plate, and the connector 18 passes through the square hole. The front end of the connector 18 is fork-shaped and clamped on both sides of the swing arm 4.

[0033] The blanking cylinder 19 is a single-acting cylinder, and its piston rod is in an extended state in the initial state, and is used to push the metering cover 2 to be close to the vertical surface of the metering bottom plate 3 through the connecting head and the swing arm 4, so that the material containing chamber remains in a closed state.

[0034] The other end of the rotary shaft 8 is connected to a drive sleeve 13 via a universal joint 12 for connecting a hand wheel or a motor to achieve manual or automatic adjustment of the charging amount.

[0035] When in use, the device is installed on the granule packaging machine through two mounting plates 1, and the material is sent into the material holding chamber through the reciprocating motion of the material discharge pipe arranged above the metering bottom plate 3 along the horizontal plate surface of the metering bottom plate 3. When it is necessary to open the bin to discharge the material, the controller of the granule packaging machine controls the discharge cylinder 19 to start, the piston rod retracts and drives the swing arm to swing around the swing arm shaft 5 through the connecting head, so that the metering cover 2 leaves the metering bottom plate 3, thereby realizing the opening of the bin and discharge of the material.

[0036] When there is an error in the charge amount and the size of the material holding chamber needs to be adjusted, the drive sleeve 13 is driven to rotate by a handwheel or a motor connected to the drive sleeve 13, and the drive sleeve 13 drives the rotating shaft 8 to rotate through the universal joint 12. During the rotation of the rotating shaft 8, the swing frame 9 is driven to swing clockwise or counterclockwise through the swing shaft 10. The swing frame swings and, under the action of the swing arm shaft 5 and the sliders 6 and the longitudinal slide grooves 101 provided at both ends of the swing arm shaft 5, the swing arm can be driven to move upward or downward, thereby driving the metering cover 2 at the lower end of the swing arm to move upward or downward, and then adjusting the volume of the material holding chamber formed by the metering cover 2 and the metering bottom plate 3; the adjustment of the metering size is achieved.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A granular material feeding device, comprising two mutually parallel mounting plates, characterized in that: A rotatable rotary shaft seat and a V-shaped swing frame are installed between the two mounting plates. A rotary shaft is radially penetrated in the middle of the rotary shaft seat. One end of the rotary shaft is threadedly connected to a swing shaft hinged at the upper end of the swing frame. A swing arm is connected between the two mounting plates through a swing arm shaft. Slide blocks are respectively mounted at both ends of the swing arm shaft and inserted into longitudinal slide grooves arranged on the two mounting plates through the slide blocks. The front end of the swing frame is fork-shaped and is inserted on the swing arm shaft through clearance fit, so as to drive the swing arm to move up and down when swinging. A metering base plate is fixed between the front ends of the two mounting plates, a metering cover is hinged at the lower end of the swing arm, a wedge-shaped groove is provided on the metering cover and cooperates with the metering base plate to form a material containing cavity, a horizontally arranged blanking cylinder is installed between the two mounting plates through a cylinder seat plate, and the front end of the piston rod of the blanking cylinder is clamped in a long hole arranged longitudinally at the lower part of the swing arm through a connecting head using a pin shaft, so as to drive the swing arm to swing so that the metering cover leaves the metering base plate, thereby realizing opening and blanking.

2. A particulate material feeding device according to claim 1, characterized in that: The other end of the rotary shaft is connected with a driving sleeve through a universal joint for connecting a hand wheel or a motor to realize manual or automatic adjustment of the charging amount.

3. The particulate material feeding device according to claim 1 is characterized in that: The rotary shaft seat is in the shape of a stepped shaft, and both ends are respectively inserted into corresponding mounting holes on the mounting plate through clearance fit.

4. The particulate material feeding device according to claim 1 is characterized in that: A base shaft is arranged between the two mounting plates. The swing frame is composed of a connecting sleeve and two V-shaped swing plates welded at both ends of the connecting sleeve. The connecting sleeve is sleeved on the base shaft through a bearing.

5. A particulate material feeding device according to claim 4, characterized in that: The swing shaft is hinged between the upper ends of the two swing plates, a threaded hole is radially arranged in the middle of the swing shaft, and one end of the rotary shaft is connected to the threaded hole through a thread.

6. A particle material feeding device according to claim 1, characterized in that: A clamping edge is provided on both sides of the slider, which is clamped on the inner side of the corresponding mounting plate to realize the axial limitation of the slider; an integral shaft sleeve is provided at the inner end of the slider and is sleeved on the swing arm shaft through a clearance fit, and the U-shaped fork at the front end of the swing frame is inserted on the shaft sleeve through a clearance fit.

7. A particulate material feeding device according to claim 1 or 6, characterized in that: The cross-section of the middle part of the swing arm shaft is rectangular, and a connecting long hole is provided in the longitudinal direction on the upper part of the swing arm. The inner side of the swing arm rests on the corresponding plane in the middle part of the swing arm shaft and is fixed to the swing arm shaft with bolts through a clamping block provided on the outer side of the swing arm.

8. The particulate material feeding device according to claim 1 is characterized in that: The metering bottom plate is L-shaped and is used to cooperate with the discharge pipe to realize discharge.

9. A particle material feeding device according to claim 1, characterized in that: The blanking cylinder is a single-acting cylinder and is fixed to the cylinder base plate by a bracket. In the initial state, its piston rod is in an extended state, which is used to push the metering cover to be close to the vertical plate surface of the metering bottom plate through the swing arm to keep the material holding chamber in a closed state.

10. A particulate material feeding device according to claim 1 or 9, characterized in that: A square hole is arranged in the middle of the cylinder seat plate, and the connecting head passes through the square hole. The front end of the connecting head is fork-shaped and clamped on both sides of the swing arm.

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