Weighing graphitization ton packing scale

Abstract

The utility model relates to a graphitization ton packing scale which comprises a supporting frame, a feeding hopper, a floating supporting mechanism and a spiral conveying mechanism. The spiral conveying mechanism is composed of a spiral conveying barrel and a spiral conveying paddle, the bottom of the conveying barrel is gradually shrunk, the conveying paddle is driven by a driving motor, and the outer side wall of the barrel is connected with the floating supporting mechanism; the floating supporting mechanism is composed of an inner floating frame and an outer floating frame, the inner frame is provided with a sliding rail and a sliding column, and the outer frame is provided with a weighing rail, a force transmission block and a weighing block. The force transmission block is connected with the weighing block through a spring, a guide column and a clamping groove are arranged between an upper support and a lower support of the weighing block, and a piezoelectric ceramic body is arranged in the groove and connected with an ampere meter.

Description

Technical Field

[0001] The utility model relates to a weighing graphite tonnage packaging scale, belonging to the field of chemical weighing. Background Art

[0002] At present, the tonnage-level packaging scale mainly realizes the weighing of the output material by weighing the conveying hopper in real time. However, during the process of screw conveying, the material is prone to jitter and offloading, both of which will cause the weighing data to fluctuate and make it impossible to accurately collect the weighing data in real time. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the technical problems in the prior art and provide a weighing graphite tonnage packaging scale.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:[[]]

[0005] The weighing graphite tonnage packaging scale includes:

[0006] A support frame, the top of the support frame is connected to a feed hopper, and the middle of the support frame is connected to a screw feeding mechanism through a floating support mechanism;

[0007] The screw feeding mechanism includes a screw feeding cylinder, the bottom of the screw feeding cylinder is a tapered structure, a screw feeding paddle is rotatably connected inside the screw feeding cylinder, the screw feeding paddle is driven by a driving motor, and the outer side wall of the screw feeding cylinder is slidably connected to the floating support mechanism;

[0008] The floating support mechanism includes a floating frame structure fixedly connected to the support frame. The floating frame structure includes an inner floating frame and an outer floating frame that are coaxially fixed to each other. Among them, a plurality of groups of sliding tracks are annularly arranged on the inner wall of the inner floating frame, and at least one group of sliding columns sliding relative to the sliding tracks are slidably connected inside the sliding tracks. The ends of the sliding columns are fixed to the wall surface of the screw feeding cylinder;

[0009] A plurality of groups of weighing tracks corresponding to the sliding tracks are annularly arranged on the inner wall of the outer floating frame. A force transmission block and a weighing block are arranged inside the weighing tracks. Among them, the middle of the force transmission block is synchronously and fixedly connected to the sliding column located above the screw feeding cylinder through a synchronous shaft. The force transmission block contacts the top of the weighing block through an upper spring, and the bottom of the weighing block contacts the end of the weighing track through a lower spring;

[0010] Among them, the weighing block includes an upper support seat elastically contacting the upper spring and a lower support seat elastically contacting the lower spring. The upper support seat and the lower support seat are slidably connected through a guide post. A semi-cylindrical clamping groove is arranged on both the upper support seat and the lower support seat. A piezoelectric ceramic body is arranged inside the clamping groove, and the piezoelectric ceramic body is connected to an ammeter through a bridge.

[0011] As a further improvement of the present utility model, the floating support mechanism includes a spring connecting pipe made of rubber; the floating connection can reduce the vibration impact on the spiral feeding cylinder during the rotation of the motor and the powder feeding impact.

[0012] As a further improvement of the present utility model, a driving motor is connected through an upper connecting frame in the middle of the bottom of the feeding hopper, and the driving shaft of the driving motor is connected to the rotating shaft of the spiral feeding paddle through a transmission sleeve made of rubber; lower connecting frames are arranged at both the top and the bottom of the spiral feeding cylinder, and the rotating shaft of the spiral feeding paddle is rotatably connected to the lower connecting frames at both ends; the transmission sleeve made of rubber can reduce the transmission of vibration during the operation of the motor through the shaft, and at the same time reduce the extrusion of the spiral feeding cylinder during the shaft pushing process, affecting the weighing accuracy of the spiral feeding cylinder.

[0013] As a further improvement of the present utility model, a material blocking cover is further arranged on the upper connecting frame, and the material blocking cover is sleeved on the driving motor; the material blocking cover can reduce the influence of the powder material on the motor.

[0014] As a further improvement of the present utility model, a sliding groove for floating the wire of the piezoelectric ceramic body is further arranged on the inner side wall of the outer floating frame, and the wire extends to the top of the outer floating frame and is clamped and fixed by a wire clamping seat arranged at the end of the outer floating frame; the sliding groove can allow the wire to move independently, preventing the wire from contacting the sliding part mechanism and causing wire breakage.

[0015] As a further improvement of the present utility model, a sliding lining block is further arranged on the outer side wall of the spiral feeding cylinder, and the sliding lining block contacts the inner side wall of the inner floating frame; the sliding lining block can assist in realizing the radial support of the spiral feeding cylinder, reducing the freedom degree of the spiral feeding cylinder swinging relative to the longitudinal axis, and reducing the off-load situation.

[0016] As a further improvement of the present utility model, an auxiliary slider corresponding to the sliding column is further arranged on the outside of the spiral feeding cylinder, and the auxiliary slider is slidably connected in the sliding track;

[0017] When the spiral feeding paddle in the spiral feeding cylinder rotates, it will drive the axial torsion caused by the friction between the material and the inner wall of the spiral feeding cylinder, and the auxiliary slider can assist the sliding column to reduce the possibility of deformation of the sliding column caused by the axial torsion.

[0018] As a further improvement of the present utility model, the inner floating frame and the outer floating frame are fixedly connected through an annular support ring, an outer support frame is fixed on the outside of the outer floating frame, baffles are fixed at both ends of the outer support frame, and the baffles are fixedly connected to the support frame; the baffles and the outer support frame can realize the overall covering and fixing, improving the overall structural strength.

[0019] The beneficial effects of the present utility model are:

[0020] In the present utility model, the original fixed weight sensor is improved to a floating connection of a spring, and the weight detection is realized through the extrusion force of a double-segment spring. The synchronous floating of the double-segment spring can make the weighing structure also in a floating state, reducing the influence of vibration on the accuracy rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is a schematic cross-sectional view of the present utility model;

[0023] Figure 2 is a schematic structural view of the weighing block.

[0024] In the figure: 1, spiral feeding cylinder; 2, feeding hopper; 3, spring connecting pipe; 4, upper connecting frame; 5, driving motor; 6, material blocking cover; 7, lower connecting frame; 8, spiral feeding paddle; 9, rotating shaft; 10, sliding track; 11, sliding column; 12, synchronous shaft; 13, force transmission block; 14, weighing block; 14-1, upper support; 14-2, lower support; 14-3, piezoelectric ceramic body; 14-4, guiding column; 15, auxiliary slider; 16, weighing track; 17, upper spring; 18, lower spring; 19, sliding lining block; 20, transmission sleeve; 21, sliding groove; 22, wire clamping seat; 23, outer support frame; 24, baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0026] As Figure 1 , the weighing graphitized ton bag scale includes:

[0027] As Figure 1 , a support frame, the top of the support frame is connected to the feeding hopper 2, and the middle of the support frame is connected to the spiral feeding mechanism through a spring connecting pipe 3 made of rubber material.

[0028] As Figure 1, a screw feeding mechanism, which includes a screw feeding cylinder 1. The bottom of the screw feeding cylinder 1 is of a tapered structure. A screw feeding paddle 8 is rotatably connected inside the screw feeding cylinder 1. A driving motor 5 is connected to the middle of the bottom of the feeding hopper 2 through an upper connecting frame 4. A baffle housing 6 is also provided on the upper connecting frame 4. The baffle housing 6 is sleeved on the driving motor 5. The driving shaft of the driving motor 5 is connected to the rotating shaft 9 of the screw feeding paddle 8 through a transmission sleeve 20 made of rubber material; Lower connecting frames 7 are provided at both the top and bottom of the screw feeding cylinder 1. The rotating shaft 9 of the screw feeding paddle 8 is rotatably connected to the lower connecting frames 7 at both ends; The outer side wall of the screw feeding cylinder 1 is slidably connected to the floating support mechanism.

[0029] As Figure 1 , a floating support mechanism, which includes a floating frame structure fixedly connected to the support frame. The floating frame structure includes an inner floating frame and an outer floating frame that are coaxially fixed to each other. Among them, several groups of sliding tracks 10 are annularly arranged on the inner wall of the inner floating frame. A group of sliding columns 11 that slide relative to the sliding tracks 10 are slidably connected inside the sliding tracks 10. The end of the sliding column 11 is fixed to the wall surface of the screw feeding cylinder 1. A sliding lining block 19 is also provided on the outer side wall of the screw feeding cylinder 1. The sliding lining block 19 contacts the inner side wall of the inner floating frame. An auxiliary slider 15 corresponding to the sliding column 11 is also provided outside the screw feeding cylinder 1. The auxiliary slider 15 is slidably connected in the sliding track 10.

[0030] As Figure 1 , several groups of weighing tracks 16 corresponding to the sliding tracks 10 are annularly arranged on the inner wall of the outer floating frame. A force transmission block 13 and a weighing block 14 are arranged inside the weighing tracks 16. Among them, the middle of the force transmission block 13 is synchronously and fixedly connected to the sliding column 11 located above the screw feeding cylinder 1 through a synchronous shaft 12. The force transmission block 13 contacts the top of the weighing block 14 through an upper spring 17. The bottom of the weighing block 14 contacts the end of the weighing track 16 through a lower spring 18.

[0031] Among them, as Figure 1 and Figure 2 , the weighing block 14 includes an upper support 14-1 that elastically contacts the upper spring 17 and a lower support 14-2 that elastically contacts the lower spring 18. The upper support 14-1 and the lower support 14-2 are slidably connected through a guide post 14-4. A semi-cylindrical clamping groove is provided on both the upper support 14-1 and the lower support 14-2. A piezoelectric ceramic body 14-3 is arranged in the clamping groove. The piezoelectric ceramic body 14-3 is connected to an ammeter through a bridge; A sliding groove 21 for floating the wire of the piezoelectric ceramic body 14-3 is also provided on the inner side wall of the outer floating frame. The wire extends to the top of the outer floating frame and is clamped and fixed through a wire clamping seat 22 provided at the end of the outer floating frame.

[0032] AsFigure 1 , a ring-shaped support ring is fixedly connected between the inner floating frame and the outer floating frame. An outer support frame 23 is fixedly arranged on the outer side of the outer floating frame. Baffles 24 are fixedly arranged at both ends of the outer support frame 23, and the baffles 24 are fixedly connected to the support frame.

[0033] During use, materials are first put into the feeding hopper 2. When the feeding hopper 2 is feeding, the impact of the materials on the feeding hopper 2 will be absorbed through the spring connecting pipe 3. Subsequently, the materials fall into the spiral feeding cylinder 1. While the spiral feeding cylinder 1 drives the materials through the spiral feeding paddle 8, a relatively large flow resistance is brought to the materials in the spiral feeding cylinder 1. When the spiral feeding paddle 8 stops, the materials will not fall. At this time, the weight of the materials causes the spiral feeding cylinder 1 to sink, compressing the upper spring 17 and the lower spring 18. The upper spring 17 and the lower spring 18 will squeeze the weighing block 14. The upper support 14-1 and the lower support 14-2 on both sides of the weighing block 14 will squeeze the piezoelectric ceramics in the middle, causing the piezoelectric ceramics to generate voltage. The voltage can be used to collect the change amount through a bridge. By summing up the voltage change amounts of each weighing block 14, the total weight of the materials in the spiral feeding cylinder 1 can be obtained. Subsequently, when the spiral feeding cylinder 1 conveys the materials, the weight will change, and the weighing of the conveyed materials can be realized by collecting the change amount in real time. The vibration of the spiral feeding cylinder 1 during the working process is absorbed through the synchronous floating of the upper spring 17 and the lower spring 18. During the impact process, when the upward impact occurs, the upper spring 17 is released and the lower spring 18 is compressed, and the total squeezing force on the piezoelectric ceramics will not change. On the contrary, when the upward impact occurs, it will not change either. In this way, the inaccuracy of the weighing data caused by jitter is prevented.

[0034] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. Weighing graphitized ton packaging scale, its characteristics are: include: A support frame, wherein the top of the support frame is connected to the feed hopper (2), and the middle of the support frame is connected to the spiral feeding mechanism via a floating support mechanism; The screw feeding mechanism comprises a screw feeding barrel (1), the bottom of the screw feeding barrel (1) is a tapered structure, a screw feeding paddle (8) is rotatably connected inside the screw feeding barrel (1), the screw feeding paddle (8) is driven by a driving motor (5), and the outer side wall of the screw feeding barrel (1) is slidably connected to the floating support mechanism; A floating support mechanism, the floating support mechanism comprising a floating frame structure fixedly connected to the support frame, the floating frame structure comprising an inner floating frame and an outer floating frame coaxially fixed to each other, wherein a plurality of groups of sliding rails (10) are arranged in an annular array on the inner wall of the inner floating frame, at least one group of sliding columns (11) slidably connected to the sliding rails (10), and the ends of the sliding columns (11) are fixed to the wall surface of the spiral feed barrel (1); A plurality of groups of weighing tracks (16) corresponding to the sliding tracks (10) are arranged in a circular array on the inner wall of the outer floating frame, and a force transmission block (13) and a weighing block (14) are arranged in the weighing track (16), wherein the middle part of the force transmission block (13) is synchronously fixedly connected with the sliding column (11) located at the upper part of the spiral feeding cylinder (1) through a synchronous shaft (12), the force transmission block (13) contacts the top of the weighing block (14) through an upper spring (17), and the bottom of the weighing block (14) contacts the end of the weighing track (16) through a lower spring (18); The weighing block (14) comprises an upper support (14-1) elastically contacting an upper spring (17) and a lower support (14-2) elastically contacting a lower spring (18); the upper support (14-1) and the lower support (14-2) are slidably connected via a guide column (14-4); a clamping groove with a semi-cylindrical structure is provided on each of the upper support (14-1) and the lower support (14-2); a piezoelectric ceramic body (14-3) is provided in the clamping groove; and the piezoelectric ceramic body (14-3) is connected to an ammeter via an electric bridge.

2. The graphitized weighing ton packaging scale according to claim 1, characterized in that: The floating support mechanism comprises a spring connecting tube (3) made of rubber.

3. The graphitized weighing ton packaging scale according to claim 2, characterized in that: A driving motor (5) is connected to the middle of the bottom of the feed hopper (2) via an upper connecting frame (4), and a driving shaft of the driving motor (5) is connected to a rotating shaft (9) of a screw feed paddle (8) via a transmission sleeve (20) made of rubber material; lower connecting frames (7) are provided at the top and bottom of the screw feed barrel (1), and the rotating shaft (9) of the screw feed paddle (8) is rotatably connected to the lower connecting frames (7) at both ends.

4. The graphitized weighing ton packaging scale as claimed in claim 3, characterized in that: A material blocking cover shell (6) is also provided on the upper connecting frame (4), and the material blocking cover shell (6) is sleeved on the driving motor (5).

5. The graphitized weighing ton packaging scale according to claim 1, characterized in that: The inner side wall of the outer floating frame is also provided with a sliding groove (21) for floating the wire of the piezoelectric ceramic body (14-3); the wire extends to the top of the outer floating frame and is clamped and fixed by a wire clamping seat (22) provided at the end of the outer floating frame.

6. The graphitized weighing ton packaging scale according to claim 1, characterized in that: The outer side wall of the spiral feeding cylinder (1) is also provided with a sliding lining block (19), and the sliding lining block (19) is in contact with the inner side wall of the inner floating frame.

7. The graphitized weighing ton packaging scale according to claim 1, characterized in that: An auxiliary sliding block (15) corresponding to the sliding column (11) is also provided on the outer side of the spiral feeding cylinder (1), and the auxiliary sliding block (15) is slidably connected to the sliding track (10).

8. The graphitized weighing ton packaging scale according to claim 1, characterized in that: The inner floating frame and the outer floating frame are fixedly connected via an annular support ring. An outer support frame (23) is fixed outside the outer floating frame. Baffles (24) are fixed at both ends of the outer support frame (23). The baffles (24) are fixedly connected to the support frame.

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