CN212497285U

CN212497285U - Elastomer strain area sand blasting equipment for cantilever type weighing sensor

Info

Publication number: CN212497285U
Application number: CN202021076661.XU
Authority: CN
Inventors: 王永
Original assignee: Bengbu Tenghui Electromechanical Technology Co ltd
Current assignee: Bengbu Tenghui Electromechanical Technology Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-02-09
Anticipated expiration: 2030-06-12

Abstract

The utility model relates to the technical field of sensor sand blasting and polishing, in particular to elastomer strain area sand blasting equipment for a cantilever type weighing sensor, which comprises a frame, a sand blasting bin, a sand blasting gun and a control box, wherein a supporting leg is welded at the bottom end of the frame, and a workpiece conveying structure and the sand blasting bin are fixedly arranged on the frame; a feeding bin is arranged at the left end of the sand blasting bin, a discharging bin is arranged at the right end of the sand blasting bin, a sand storage bin is arranged at the upper end of the sand blasting bin, a sand blasting gun is arranged at the top of the sand blasting bin, and the sand blasting gun is communicated with the interior of the sand storage bin sequentially through a sand blasting pipeline and the sand blasting machine; a recovery bin is arranged at the bottom of the sand blasting bin, a sand unloading pipe is arranged at the bottom end of the recovery bin, and a sand unloading valve is arranged on the outer wall of the sand unloading pipe; the utility model discloses be stained with the sand grain that attaches on the elastomer surface and can drop to retrieving the storehouse under the wind-force of a section of thick bamboo of blowing and self action of gravity, and then be favorable to keeping cantilever type weighing sensor elastomer surface clean, can retrieve and reuse the sand grain.

Description

Elastomer strain area sand blasting equipment for cantilever type weighing sensor

Technical Field

The utility model relates to a sensor sandblast technical field of polishing, concretely relates to elastomer strain area sand blasting equipment for cantilever type weighing sensor.

Background

In the weighing sensor technology, the resistance strain gauge is adhered to the elastic element to ensure that the resistance strain gauge and the elastic element are firmly combined into a whole, and the basis is that the elastic element patch has surface roughness meeting the adhesion requirement, so that dirt can be removed, the adhesion area can be increased, the surface can be activated, and the strain adhesive can be infiltrated conveniently. Therefore, before the strain gauge is adhered, the adhered area of the elastic strain gauge needs to be polished. The existing polishing process mainly comprises two types, one type is manual polishing, namely, manual polishing is carried out through abrasive paper. The other mode is manual sand blasting and polishing, namely, an operator holds a sand blasting gun to polish the elastic body. The disadvantages are that the degree of automation is low, the quality of the sanding is related to the experience level of the operator, and the consistency of the sanding is poor. The cantilever type weighing sensor is a common weighing sensor, and is externally formed into a square column shape, so that the cantilever type weighing sensor is easy to install, convenient to use and good in interchangeability.

The invention with the patent application number of 201610978444.1 discloses elastomer strain area sand blasting and polishing equipment of a sensor, which relates to the field of weighing sensor manufacturing and comprises a workpiece conveying device, a sand blasting bin, a sand blasting gun, a PLC (programmable logic controller) and a workpiece clamp for bearing a workpiece, wherein the workpiece conveying device penetrates through a workpiece feeding hole and a workpiece discharging hole of the sand blasting bin; a travel switch is installed on the side edge of the workpiece conveying device, positioning concave-convex holes are intermittently formed in the side wall of the workpiece clamp, and the positioning concave-convex holes correspond to the travel switch in position; the first input end of the PLC is connected with the output end of the travel switch, the second output end of the PLC is connected with the control input end of the workpiece conveying device, and the third output end of the PLC is connected with the control input end of the sand blasting gun. The strain area sand blasting polishing machine can effectively improve the sand blasting polishing efficiency of a strain area, avoids abnormal polishing of other areas, and is high in automation degree; however, the invention still has many disadvantages, for example, the upper surface of the elastomer, especially the bonding area, is easy to adhere sand grains after sand blasting and polishing, the cleanliness is not ideal, and simultaneously, the waste of the sand grains is caused, and the processing cost is increased; sand produced by sand blasting easily flies out from a discharge hole or a feed hole, and dust easily enters the inside of the sand blasting bin.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problems that the upper surface of the elastomer, especially the bonding area, is easy to be adhered with sand grains after sand blasting and polishing, the cleanness is not ideal, the sand grains generated by sand blasting are easy to fly out from the discharge port or the feed port, and the dust is easy to enter the interior of the sand blasting bin in the background technology; an elastomer strain zone blasting device for a cantilever type weighing sensor is designed.

The utility model discloses a realize through following technical scheme:

an elastomer strain area sand blasting device for a cantilever type weighing sensor comprises a rack, a sand blasting bin, a sand blasting gun and a control box, wherein supporting legs are welded at the bottom end of the rack, a workpiece conveying structure and the sand blasting bin are fixedly mounted on the rack, the workpiece conveying structure comprises a steel mesh conveying belt, a driving wheel, a driven wheel and a conveying motor, the steel mesh conveying belt transversely penetrates through the sand blasting bin, L-shaped guide rails are arranged on the front side and the rear side of the steel mesh conveying belt, the two L-shaped guide rails are fixed on the rack, supporting plates are fixed on the outer walls of the middle positions of the two L-shaped guide rails, electric push rods are fixed on the two supporting plates, clamping blocks are fixed on the end portions of telescopic rods of the electric push rods, and square holes for the clamping blocks to freely pass through are formed in the vertical side walls of the two L-shaped guide rails; two groups of bearing seats are further fixed at the bottom ends of the two L-shaped guide rails, a rotating shaft is mounted in each group of bearing seats, the outer ends of the two rotating shafts are driven by a stepping motor, a pair of dough turning pieces are fixed on the outer walls of the two rotating shafts, and four fan-shaped holes are formed in the surface edges of the pair of dough turning pieces along the circumference;

a feeding bin is arranged at the left end of the sand blasting bin, a discharging bin is arranged at the right end of the sand blasting bin, a sand storage bin is mounted at the upper end of the sand blasting bin, the sand blasting gun is mounted at the top of the sand blasting bin, and the sand blasting gun is communicated with the interior of the sand storage bin sequentially through a sand blasting pipeline and a sand blasting machine; the bottom of the sand blasting bin is provided with a recovery bin, the bottom of the recovery bin is provided with a sand unloading pipe, and the outer wall of the sand unloading pipe is provided with a sand unloading valve.

As a further improvement of the above solution, a first gap is formed between the L-shaped guide rail located at the rear side and the steel mesh conveyor belt, a second gap is formed between the L-shaped guide rail located at the front side and the steel mesh conveyor belt, and the pair of turnover panels are respectively disposed in the first gap and the second gap.

As a further improvement of the scheme, the feeding bin and the discharging bin are both provided with blowing cylinders at the tops, air outlet holes are uniformly formed in the bottom surfaces of the blowing cylinders, and the top ends of the blowing cylinders are connected with an air blower through air inlet pipes.

As a further improvement of the scheme, the two groups of dough turning pieces are arranged inside the discharging bin and are positioned below the blowing barrel.

As a further improvement of the above scheme, the outer walls of the driving wheel and the driven wheel are jointly wound with the steel mesh conveyor belt, the driving wheel and the driven wheel are both rotatably mounted on the frame, and the driving wheel is driven by the conveyor motor.

As a further improvement of the scheme, the lower ends of the supporting plates are fixed with vertical rods, the front vertical rods and the rear vertical rods are rotatably provided with sand cleaning rollers, the sand cleaning rollers are arranged in an inner space formed by surrounding the steel mesh conveying belt, cleaning wires are further fixed on the outer walls of the sand cleaning rollers, and the cleaning wires are in contact with the upper surface of the steel mesh conveying belt on the lower layer.

As a further improvement of the scheme, a bin cover is connected to the top end of the sand storage bin in a connecting mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, be provided with turn-over piece and step motor, and set up step motor and drive the turn-over piece at every turn and rotate 90, convey before by the steel mesh conveyer belt when cantilever type weighing sensor elastomer, just during the fan-shaped hole that sets up on two turn-over pieces is inside after, two turn-over pieces can be driven clockwise by step motor and turn to 90, thereby cantilever type weighing sensor elastomer also can be overturned 90, be stained with and attach the sand grain on its surface and can drop to retrieving the storehouse under the wind-force of a section of thick bamboo of blowing and self action of gravity, and then be favorable to keeping cantilever type weighing sensor elastomer surface clean, can retrieve and reuse the sand grain, because turn-over piece and step motor's quantity is two sets of, thereby can overturn 90 and 180 with cantilever type weighing sensor elastomer in proper order, make the clearance effect.

2. In the utility model, the top of the feeding bin and the top of the discharging bin are both provided with the blowing cylinders, the bottom surfaces of the blowing cylinders are uniformly provided with air outlets, the top ends of the blowing cylinders are connected with the air blower through the air inlet pipes, a large amount of air flow can be blown into the blowing cylinders through the air inlet pipes after the air blower is powered on, and finally the air flow is uniformly blown out from the air outlets, so that air curtains can be formed in the feeding bin and the discharging bin through signals, and the vertically downward air flow can further blow out sand attached to the surface of the cantilever type weighing sensor elastomer on the one hand, thereby ensuring the cleanliness of the surface of the cantilever type weighing sensor elastomer after sand blasting and polishing; on the other hand, the formed air curtain has an isolation effect, so that external dust can be prevented from entering the sand blasting bin, and sand grains in the air curtain can be prevented from flying out of the feeding bin and the discharging bin.

3. The utility model discloses in, sand removal roller and fix the setting at its surface cleaning wire because cleaning wire contacts with the steel mesh conveyer belt upper surface that is located the lower floor to also can follow the steel mesh conveyer belt and rotate, cleaning wire can stretch into the mesh inside of steel mesh conveyer belt at the pivoted in-process, thereby can be stained with the sand grain that attaches to steel mesh conveyer belt surface and clear up.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of a workpiece conveying structure and a first view angle structure of an L-shaped guide rail according to the present invention;

FIG. 3 is a schematic view of a second view angle structure of the workpiece conveying structure and the L-shaped guide rail according to the present invention;

FIG. 4 is a schematic view of the installation of the L-shaped guide rail, the turn-over plate and the stepping motor of the present invention;

fig. 5 is a schematic view of the internal structure of the present invention;

FIG. 6 is a schematic structural view of a blower and a blower barrel according to the present invention;

fig. 7 is a schematic structural view of a workpiece conveying structure and an L-shaped guide rail according to embodiment 2 of the present invention.

Wherein, 1-a frame, 2-a sand blasting bin, 3-a sand blasting gun, 4-a control box, 5-a supporting leg, 6-a workpiece conveying structure, 601-a steel mesh conveying belt, 602-a driving wheel, 603-a driven wheel, 604-a conveying motor, 7-an L-shaped guide rail, 8-a supporting plate, 9-an electric push rod, 10-a clamping block, 11-a square hole, 12-a bearing seat, 13-a rotating shaft, 14-a stepping motor, 15-a dough sheet turning sheet, 16-a fan-shaped hole, 17-a feeding bin, 18-a discharging bin, 19-a sand storage bin, 20-a sand blasting pipeline, 21-a sand blasting machine, 22-a recycling bin, 23-a sand unloading pipe, 24-a sand unloading valve, 25-a first gap, 26-a second gap and 27-a blowing cylinder, 28-air outlet, 29-air inlet pipe, 30-blower, 31-vertical rod, 32-sand cleaning roller, 33-cleaning wire and 34-bin cover.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be further explained with reference to the accompanying drawings.

Example one

An elastomer strain area sand blasting device for a cantilever type weighing sensor is disclosed, as shown in fig. 1-3, and comprises a frame 1, a sand blasting bin 2, a sand blasting gun 3 and a control box 4, wherein the control box 4 is installed on the front side wall of the sand blasting bin 2, and controls all electric appliances of the device, a support leg 5 is welded at the bottom end of the frame 1, a workpiece conveying structure 6 and the sand blasting bin 2 are fixedly installed on the frame 1, the workpiece conveying structure 6 comprises a steel mesh conveying belt 601, a driving wheel 602, a driven wheel 603 and a conveying motor 604, the outer walls of the driving wheel 602 and the driven wheel 603 are jointly wound and connected with the steel mesh conveying belt 601, the driving wheel 602 and the driven wheel 603 are both rotatably installed on the frame 1, and the; steel mesh conveyer belt 601 passes along 2 inside transversal directions in sandblast storehouse, steel mesh conveyer belt 601 preceding, the rear side all is equipped with L shape guide rail 7, two L shape guide rail 7 all are fixed in on the frame 1, two L shape guide rail 7's middle part position outer wall all is fixed with layer board 8, all be fixed with electric putter 9 on two layer boards 8, electric putter 9's telescopic link end fixing has grip block 10, the square hole 11 that is used for grip block 10 to freely pass through is all offered to two L shape guide rail 7's perpendicular lateral wall, electric putter 9 circular telegram is extendible and drives grip block 10 and be close to the removal mutually, it can press from both sides tightly fixed to move two grip blocks 10 so far as cantilever type weighing sensor elastomer, be convenient for carry out the sandblast.

As shown in fig. 2-4, two sets of bearing seats 12 are further fixed at the bottom ends of the two L-shaped guide rails 7, a rotating shaft 13 is installed inside each set of bearing seat 12, the outer ends of the two rotating shafts 13 are driven by a stepping motor 14, a pair of dough flaps 15 are fixed on the outer walls of the two rotating shafts 13, and four fan-shaped holes 16 are formed in the surface edges of the pair of dough flaps 15 along the circumference; a first gap 25 is formed between the L-shaped guide rail 7 positioned at the rear side and the steel mesh conveyor 601, a second gap 26 is formed between the L-shaped guide rail 7 positioned at the front side and the steel mesh conveyor 601, and the pair of turnover panels 15 are respectively arranged in the first gap 25 and the second gap 26.

As shown in fig. 5, a feeding bin 17 is arranged at the left end of the sand blasting bin 2, a discharging bin 18 is arranged at the right end of the sand blasting bin 2, a sand storage bin 19 is arranged at the upper end of the sand blasting bin 2, a bin cover 34 is connected to the top end of the sand storage bin 19 in a cross mode, a sand blasting gun 3 is arranged at the top of the sand blasting bin 2, and the sand blasting gun 3 is communicated with the interior of the sand storage bin 19 sequentially through a sand blasting pipeline 20 and a sand blasting machine 21; the bottom of the sand-blasting bin 2 is provided with a recovery bin 22, the bottom end of the recovery bin 22 is provided with a sand unloading pipe 23, and the outer wall of the sand unloading pipe 23 is provided with a sand unloading valve 24.

As shown in fig. 1 and 6, blowing cylinders 27 are mounted at the tops of the feeding bin 17 and the discharging bin 18, air outlet holes 28 are uniformly formed in the bottom surfaces of the blowing cylinders 27, and the top ends of the blowing cylinders 27 are connected with a blower 30 through air inlet pipes 29; the two groups of dough turning sheets 15 are arranged inside the discharging bin 18 and are positioned below the blowing cylinder 27.

When the cantilever type weighing sensor elastomer is used, a cantilever type weighing sensor elastomer to be subjected to sand blasting polishing can be placed on the upper surface of the steel mesh conveyor belt 601, then the conveying motor 604 is started through the control box 4, the conveying motor 604 can drive the driving wheel 602 to rotate clockwise, the driving wheel 602 and the steel mesh conveyor belt 601 can be further driven to rotate clockwise, the cantilever type weighing sensor elastomer continuously moves towards the right side along with the steel mesh conveyor belt 601, and when the cantilever type weighing sensor elastomer moves to the position right below the sand blasting gun 3, the conveying motor 604 is closed to stop working; then the electric push rod 9 is electrified to extend and drives the two clamping blocks 10 to clamp and fix the cantilever type weighing sensor elastomer, the sand blasting machine 21 is also electrified to start working, and the sand blasting machine 21 extracts fine sand grains in the sand storage bin 19 from the sand blasting pipeline 20 to the sand blasting gun 3 and sprays the fine sand grains to the upper surface and the bonding area of the elastomer at a high speed; after the sand blasting lasts for 3-5min, the sand blasting machine 21 is closed, and the transmission motor 604 drives the steel mesh transmission belt 601 to transmit rightwards; when the cantilever type weighing sensor elastic body is conveyed by the steel mesh conveying belt 601 to the front and back sides of the cantilever type weighing sensor elastic body to the inner part of the fan-shaped holes 16 formed in the two turnover pieces 15, the two turnover pieces 15 can be driven by the stepping motor 14 to rotate clockwise to 90 degrees, so that the cantilever type weighing sensor elastic body can also be turned over 90 degrees, sand adhered to the surface of the cantilever type weighing sensor elastic body can fall to the recovery bin 22 under the action of wind power of the air blowing cylinder 27 and self gravity, the surface of the cantilever type weighing sensor elastic body is kept clean, the sand can be recovered and recycled, and the cantilever type weighing sensor elastic body can be turned over 90 degrees and 180 degrees in sequence due to the fact that the quantity of the turnover pieces 15 and the quantity of the; finally, the cantilever type weighing sensor elastomer after sand blasting is spread out by the discharging bin 18.

The top parts of the feeding bin 17 and the discharging bin 18 are respectively provided with a blowing tube 27, when the air blower 30 is powered on, a large amount of air flow can be blown into the blowing tube 27 through the air inlet pipe 29, and finally the air flow is uniformly blown out through the air outlet hole 28, so that an air curtain can be formed in signals inside the feeding bin 17 and the discharging bin 18, and the vertically downward air flow can further blow out sand grains adhered to the surface of the cantilever type weighing sensor elastomer on one hand, and the cleanliness of the surface of the cantilever type weighing sensor elastomer after sand blasting and polishing is ensured; on the other hand, the formed air curtain has an isolation effect, not only can prevent external dust from entering the sand blasting bin 2, but also can prevent internal sand grains from flying out of the bin of the feeding bin 17 and the discharging bin 18

Example two

Second embodiment on the basis of the first embodiment, as shown in fig. 7, the vertical rods 31 are fixed to the lower ends of the pair of supporting plates 8, the sand cleaning roller 32 is rotatably installed between the front and rear vertical rods 31, the sand cleaning roller 32 is disposed in the inner space formed by the steel mesh conveyor belt 601, the cleaning wires 33 are further fixed to the outer wall of the sand cleaning roller 32, and the cleaning wires 33 are in contact with the upper surface of the steel mesh conveyor belt 601 located at the lower layer.

When this embodiment uses, because the cleaning wire 33 contacts with the steel mesh conveyer belt 601 upper surface that is located the lower floor to also can follow the rotation of steel mesh conveyer belt 601, the cleaning wire 33 can stretch into the mesh inside of steel mesh conveyer belt 601 at the pivoted in-process, thereby can clear up the sand grain that adheres to the steel mesh conveyer belt 601 surface

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an elastomer strain zone sand blasting equipment for cantilever type weighing sensor, includes frame (1), sandblast storehouse (2), sandblast rifle (3) and control box (4), its characterized in that: the bottom end of the rack (1) is welded with a supporting leg (5), a workpiece conveying structure (6) and the sand blasting bin (2) are fixedly mounted on the rack (1), the workpiece conveying structure (6) comprises a steel mesh conveying belt (601), a driving wheel (602), a driven wheel (603) and a conveying motor (604), the steel mesh conveying belt (601) transversely penetrates through the sand blasting bin (2) along the inside, L-shaped guide rails (7) are arranged on the front side and the rear side of the steel mesh conveying belt (601), the two L-shaped guide rails (7) are fixed on the rack (1), supporting plates (8) are fixed on the outer walls of the middle positions of the two L-shaped guide rails (7), electric push rods (9) are fixed on the two supporting plates (8), clamping blocks (10) are fixed on the end portions of telescopic rods of the electric push rods (9), and square holes (11) for the clamping blocks (10) to freely pass through are formed in the vertical side walls of the two L-shaped guide rails (7); two groups of bearing seats (12) are further fixed at the bottom ends of the two L-shaped guide rails (7), a rotating shaft (13) is mounted inside each group of bearing seats (12), the outer ends of the two rotating shafts (13) are driven by a stepping motor (14), a pair of dough turning sheets (15) are fixed on the outer walls of the two rotating shafts (13), and four fan-shaped holes (16) are formed in the surface edges of the pair of dough turning sheets (15) along the circumference;

a feeding bin (17) is arranged at the left end of the sand blasting bin (2), a discharging bin (18) is arranged at the right end of the sand blasting bin (2), a sand storage bin (19) is installed at the upper end of the sand blasting bin (2), the sand blasting gun (3) is installed at the top of the sand blasting bin (2), and the sand blasting gun (3) is communicated with the inside of the sand storage bin (19) sequentially through a sand blasting pipeline (20) and a sand blasting machine (21); the bottom of the sand blasting bin (2) is provided with a recovery bin (22), the bottom end of the recovery bin (22) is provided with a sand unloading pipe (23), and the outer wall of the sand unloading pipe (23) is provided with a sand unloading valve (24).

2. The elastomer strain zone blasting apparatus for cantilevered load cells of claim 1, wherein: a first gap (25) is formed between the L-shaped guide rail (7) positioned on the rear side and the steel mesh conveyor belt (601), a second gap (26) is formed between the L-shaped guide rail (7) positioned on the front side and the steel mesh conveyor belt (601), and the pair of dough turning pieces (15) are respectively arranged in the first gap (25) and the second gap (26).

3. The elastomer strain zone blasting apparatus for cantilevered load cells of claim 1, wherein: the feeding bin (17) with a blowing barrel (27) is installed at the top of the discharging bin (18), air outlet holes (28) are evenly formed in the bottom surface of the blowing barrel (27), and the top end of the blowing barrel (27) is connected with an air blower (30) through an air inlet pipe (29).

4. The elastomer strain zone blasting apparatus for cantilevered load cells of claim 3, wherein: the two groups of dough turning sheets (15) are arranged inside the discharging bin (18) and are positioned below the blowing barrel (27).

5. The elastomer strain zone blasting apparatus for cantilevered load cells of claim 1, wherein: the outer walls of the driving wheel (602) and the driven wheel (603) are connected with the steel mesh conveyor belt (601) in a winding mode, the driving wheel (602) and the driven wheel (603) are rotatably mounted on the rack (1), and the driving wheel (602) is driven by the conveying motor (604).

6. The elastomer strain zone blasting apparatus for cantilevered load cells of claim 1, wherein: a pair of the lower extreme of layer board (8) is fixed with montant (31), and is preceding, back rotate between montant (31) and install sand removal roller (32), sand removal roller (32) set up in steel mesh conveyer belt (601) encircle the inner space that forms, the outer wall of sand removal roller (32) still is fixed with cleaning wire (33), cleaning wire (33) with be located the lower floor steel mesh conveyer belt (601) upper surface contacts.

7. The elastomer strain zone blasting apparatus for cantilevered load cells of claim 1, wherein: the top end of the sand storage bin (19) is connected with a bin cover (34) in a cross mode.