WO2022217774A1

WO2022217774A1 - Automatic weighing device for natural rubber

Info

Publication number: WO2022217774A1
Application number: PCT/CN2021/108020
Authority: WO
Inventors: 李振华; 郭博睿; 孙世海; 白先权; 丁爱武; 张毅超
Original assignee: 海南天然橡胶产业集团股份有限公司; 海南中橡科技有限公司
Priority date: 2021-04-13
Filing date: 2021-07-23
Publication date: 2022-10-20

Abstract

An automatic weighing device for natural rubber, comprising a bracket (1), an elastic frame (12), a weighing table (13), locking members (14), and a feeding assembly (15). The elastic frame (12) is connected to the bracket (1), the weighing table (13) is fixed on the elastic frame (12), a fixed frame (17) is connected to the upper portion of the weighing table (13), a plurality of conveying rollers (171) are rotatably connected to the fixed frame (17), the locking members (14) are arranged on the bracket (1) and are used for controlling the elastic frame (12) to stretch out and draw back, the feeding assembly (15) is fixed on the bracket (1) and is located above the fixed frame (17), and the feeding assembly (15) can unlock the locking members (14) when completing feeding, such that the elastic frame (12) drives rubber blocks placed on the plurality of conveying rollers (171) to move downwards under gravity. The automatic weighing device for natural rubber can perform uninterrupted weighing and feeding on the rubber blocks processed by an assembly line, without needing manual weighing and feeding, thereby saving manpower and material resources; and the processing speed of the rubber blocks can be increased, thereby increasing the processing rate of the rubber blocks.

Description

A natural rubber automatic weighing device

technical field

The invention relates to the technical field of rubber weighing processing, in particular to an automatic weighing device for natural rubber.

Background technique

The finished product of natural rubber needs to go through various processes such as latex collection, purification, mixing, dilution, acid addition and solidification, rubber block curing, thinning, drying, weighing, packaging, etc., to obtain rubber blocks that meet the weight requirements; The weight of the block rubber obtained in the above process is often inconsistent, and the weight of the block rubber does not meet the standard. Therefore, when packing the block rubber, it is necessary to weigh each block rubber first to judge the block to be packaged. Whether the weight of the rubber block is up to the standard, in general, the dry block rubber is usually conveyed by a conveyor belt during the process from weighing to packing. Weighing, it is impossible to refill the block rubber whose weight is not up to the standard, it needs manual refilling, and the efficiency is low. a conveying mechanism, a dust removal mechanism, a weighing mechanism, a second conveying mechanism and a receiving mechanism, the first conveying mechanism includes a first left conveying roller and a first right conveying roller, the weighing mechanism includes a weighing transverse plate, and the second conveying mechanism includes The second left transfer roller, the second right transfer roller. It is only through the cooperation of the first conveyor belt, the second conveyor belt and the weighing mechanism that the rubber can be weighed and packed, and the block rubber cannot be replenished when the weighing is not up to standard.

SUMMARY OF THE INVENTION

In view of this, the present invention proposes an automatic weighing device for natural rubber, which can continuously weigh and replenish the block rubber processed by the assembly line, without manual weighing and feeding, saving manpower and material resources, and can speed up the block The processing speed of the block rubber is increased, and the processing rate of the block rubber is increased.

The technical scheme of the present invention is realized as follows:

A natural rubber automatic weighing device, comprising a bracket, an elastic frame, a weighing platform, a locking piece and a feeding component, the elastic bracket is connected to the bracket, and the weighing platform is fixed on the elastic bracket , the upper part of the weighing platform is connected with a fixed frame, the fixed frame is rotatably connected with a number of conveying rollers, the locking member is arranged on the bracket, and the locking member is used to control the expansion and contraction of the elastic frame , the feeding assembly is fixed on the bracket, the feeding assembly is located above the fixing frame, and the feeding assembly can unlock the locking member when the feeding is completed, so that the elastic frame drives the The rubber blocks placed on several of the transfer rollers move downwards under the force of gravity.

Further, the feeding assembly includes a telescopic frame, a movable frame, a roller, a pushing assembly and a feeding assembly, the telescopic frame is connected to the bracket through a first telescopic part, and the movable frame is connected to the bracket through a second telescopic part connected to the telescopic frame; the drum is rotatably arranged on the movable frame, and a plurality of material troughs for placing rubber sheets are evenly distributed on the drum along the circumferential direction; the pushing component is arranged in the drum, The pushing component performs telescopic motion through the rotation of the drum, so that when the material trough rotates to the bottom of the drum, the pushing component pushes the rubber sheet out of the material trough and presses it against the material that needs to be replenished. On the block rubber; the feeding assembly is arranged on the movable frame, and the feeding assembly is connected with the drum in a driving manner, so that the feeding assembly pushes the rubber sheet into the feeding trough.

Further, the elastic frame includes a plurality of first telescopic rods, two ends of the plurality of first telescopic rods are respectively connected with the bracket and the weighing platform, and the first telescopic rods include an inner rod and an outer rod, The inner rod is slidably connected to the inside of the outer rod through a first spring.

Further, the locking member includes a locking rod, a sliding rail, a transmission gear set and a push plate with tooth patterns, the locking rod is rotatably connected to the bracket through a torsion spring, and the inner rod is provided with a card slot. , the free end of the lock rod cooperates with the card slot, the slide rail is connected with the bracket through a connecting rod, the push plate is slidably connected in the slide rail, and the free end of the push plate is connected There is a slot, the transmission gear set is fixed on the slide rail through a bearing seat, the push plate is engaged with the transmission gear set, and the telescopic frame is connected with a tooth meshed with the transmission gear set. a rod, and the gear rod is used to drive the push plate to slide in the chute.

Further, the pushing assembly includes a polygonal track groove, a limit roller and a push rod, the polygonal track groove is arranged on both sides of the drum and is fixedly connected with the drum; the movable frame is provided with a fixed shaft, The polygonal track groove is sleeved on the fixed shaft through a bearing; the push rod is slidably arranged on the fixed shaft along the vertical direction; the limit roller is rotatably connected to both ends of the push rod , the limit roller is located in the polygon track groove; the push rod is provided with a pressure rod.

Further, the feeding assembly includes a spiral push roller, a transmission bevel gear and a material box for placing multiple pieces of the rubber sheets, and the spiral push roller is rotatably arranged on both sides of the movable frame; the drive The bevel gear is arranged at the end of the spiral push roller, the two ends of the roller are provided with annular bevel gears, and the transmission bevel gear meshes with the annular bevel gear for transmission; the material box is arranged on the movable frame .

Further, there are two spiral push rollers; the spiral groove on the spiral push roller at one end of the drum is opposite to the spiral groove on the spiral push roller at the other end of the drum, so that When the roller is rotated to drive the spiral push rollers on both sides to rotate synchronously and reversely, the rubber sheet is pushed into the material chute for vertical unloading.

Further, two sides of the telescopic frame are provided with rectangular limit holes, and two sides of the movable frame are provided with movable rollers, and the movable rollers are located in the rectangular limit holes.

Further, the fixing shaft is provided with a limit rod along the vertical direction, and the push rod is sleeved on the limit rod, so that the limit rod can slide in the vertical direction.

Further, it also includes a tying pin, the tying pin is located in the middle of the rubber sheet, and the flat end of the tying pin protrudes from the surface of the rubber sheet; There is a round hole through which the pressing rod pushes the rubber sheet out of the trough, and pushes the binding pin to fasten the rubber sheet on the block rubber.

Compared with the prior art, the beneficial effects of the present invention are:

The invention provides an automatic weighing device for natural rubber, which can realize uninterrupted weighing of the block rubber processed by the assembly line, and can replenish the block rubber that fails to meet the weight requirements, and the replenishment component ends. At the same time, the elastic frame can be unlocked by the locking member, so that the elastic frame moves downward with the block rubber under gravity, and the bottom of the block rubber that moves down is flush with the conveying surface of the next conveyor belt in the assembly line, and the latter conveyor belt continues. The block rubber after weighing and feeding is transferred to the next processing process, without manual weighing and feeding, saving manpower and material resources, and can speed up the processing speed of block rubber and improve the processing rate of block rubber.

Description of drawings

Fig. 1 is the schematic diagram of a kind of natural rubber automatic weighing device of the application;

Fig. 2 is the overall schematic diagram of a kind of natural rubber automatic weighing device of the application;

3 is an enlarged schematic diagram of part D of a natural rubber automatic weighing device of the application;

4 is a schematic diagram of a feeding component of the present application;

5 is a schematic diagram of a telescopic frame of a natural rubber automatic weighing device of the application;

Fig. 6 is the drum schematic diagram of a kind of natural rubber automatic weighing device of the application;

Fig. 7 is a schematic diagram showing the enlarged part A of a natural rubber automatic weighing device of the application;

8 is a schematic diagram of the interior of a drum of a natural rubber automatic weighing device of the application;

Fig. 9 is a schematic enlarged view of part B of a natural rubber automatic weighing device of the application;

10 is a schematic diagram of a pushing component of a natural rubber automatic weighing device of the application;

11 is a schematic diagram of a feeding assembly of a natural rubber automatic weighing device of the application;

12 is an enlarged schematic view of part C of a natural rubber automatic weighing device of the application;

13 is a view of a drum shaft of a natural rubber automatic weighing device of the application;

Fig. 14 is the drum schematic diagram of a kind of natural rubber automatic weighing device of the application;

Reference signs: 1-bracket; 2-extension frame; 3-movable frame; 4-roller; 5-first telescopic part; 6-second telescopic part; 7-rubber sheet; 8-fixed shaft; 9-ring cone Gear; 10-tie pin; 21-rectangular limit hole; 31-movable roller; 41-material trough; 42-round hole; 51-polygon track groove; 52-limit roller; 53-push rod; 54-press rod ;61-spiral push roller;62-transmission bevel gear;63-material box;81-limiting rod;511-arc bottom edge;611-spiral groove;12-elastic frame;13-weighing platform;14-lock Stopper; 141-lock lever; 142-slide rail; 143-transmission gear set; 144-push plate; 145-connecting rod; 146-slot; 147-bearing seat; 148-gear rod; 15-feeding component; 17-fixed frame; 171-transmission roller; 18-first telescopic rod; 181-inner rod; 182-outer rod.

Detailed ways

In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described with reference to the accompanying drawings.

Example 1

1 to 5 , a natural rubber automatic weighing device provided by the present invention includes a bracket 1 , an elastic frame 12 , a weighing platform 13 , a locking member 14 and a feeding component 15 , and the elastic frame 12 is connected to the bracket 1 . It plays the role of fixing the elastic frame 12. The weighing table 13 is fixed on the elastic frame 12. The upper part of the weighing table 13 is connected with a fixing frame 17. After continuing to move, the locking member 14 is arranged on the bracket 1. The locking member 14 is used to control the expansion and contraction of the elastic frame 12. The feeding component 15 is fixed on the supporting frame 1. The assembly 15 can unlock the locking member 14 when the feeding is completed, so that the elastic frame 12 drives the rubber blocks placed on the plurality of conveying rollers 171 to move downward under gravity.

In the weighing and packing line for block rubber, when the block rubber needs to be weighed, the application is placed between the front and rear conveyor belts. The conveyor belt is transmitted to several conveyor rollers 171 of the present application. When the block rubber is completely placed on the several conveyor rollers 171, the weight of the block rubber is obtained through the weighing table 13, and the block rubber is replenished through the rubber replenishing component. When the required weight is reached, when the glue filling is completed, the glue filling assembly can unlock the locking member 14 to unlock the elastic frame 12. The bottom is flush with the conveying sheet of the latter conveyor belt, and the block rubber after weighing and replenishing is continuously conveyed through the latter conveyor belt. Further, the length formed by the arrangement of several conveying rollers 171 should be smaller than the length of the block rubber, so that the block rubber When completely conveyed to several conveying rollers 171, the front end of the block rubber can still extend out of the last conveying roller 171, which is convenient for the subsequent conveyor belt to continue to convey the block rubber after rebalancing and refilling.

Specifically, the feeding assembly 15 includes a telescopic frame 2 , a movable frame 3 , a roller 4 , a pushing assembly and a feeding assembly. The telescopic frame 2 is connected to the bracket 1 through the first telescopic member 5 , so that the Control the vertical lifting movement of the telescopic frame 2; the movable frame 3 is connected to the telescopic frame 2 through the second telescopic part 6, so as to control the horizontal telescopic movement of the movable frame 3 through the second telescopic part 6; On the frame 3, a plurality of troughs 41 for placing the counterweight rubber sheets 7 are evenly distributed on the drum 4 in the circumferential direction, so that the drum 4 can be rotated and advanced on the block rubber by the pushing of the second telescopic member 6; In the drum 4, the pushing component rotates through the drum 4 to perform telescopic motion, so that when the material trough 41 rotates to the bottom of the drum 4, the pushing component pushes the counterweight rubber sheet 7 out of the material trough 41 and presses it against the block that needs to be replenished. The feeding component is installed on the movable frame 3, and the feeding component is connected with the drum 4, so that the feeding component pushes the rubber sheet 7 into the feeding chute 41, so as to realize the counterweight of the sheet Feeding of rubber sheet 7.

By setting the first telescopic part 5 and the second telescopic part 6, the roller 4 is pushed down and rolled, and the weighted rubber sheet 7 is pushed out of the trough 41 and pressed against the block rubber, so as to realize the control of the block that does not meet the weight. It can effectively improve the efficiency of rubber feeding, reduce manual labor, and improve the efficiency of rubber packaging products, wherein the first telescopic part 5 and the second telescopic part 6 are electric push rods 53 or pneumatic The push rod 53 is used to push the telescopic frame 2 and the movable frame 3 to move through the electric push rod 53 or the pneumatic push rod 53 .

Specifically, the elastic frame 12 includes a plurality of first telescopic rods 18, two ends of the plurality of first telescopic rods 18 are respectively connected to the bracket 1 and the weighing table 13, the first telescopic rod 18 includes an inner rod 181 and an outer rod 182, the inner rod 181 is slidably connected to the inside of the outer rod 182 through a first spring. After the locking member 14 is unlocked, under the gravity of the block rubber, the first telescopic rod 18 is shortened, so that the block rubber after weighing and replenishing the rubber moves down to be flush with the next conveyor belt, so that the latter conveyor belt can continue to transfer the block rubber. .

Specifically, the locking member 14 includes a locking rod 141 , a sliding rail 142 , a transmission gear set 143 and a push plate 144 with tooth patterns. The locking rod 141 is rotatably connected to the bracket 1 through a torsion spring, and the inner rod 181 is provided with a slot. 146, the free end of the locking rod 141 cooperates with the card slot 146, the slide rail 142 is connected with the bracket 1 through the connecting rod 145, the push plate 144 is slidably connected in the slide rail 142, and the free end of the push plate 144 is connected with a card slot 146, The transmission gear set 143 is fixed on the slide rail 142 through the bearing seat 147, the push plate 144 is engaged with the transmission gear set 143, and the telescopic frame is connected with a gear rod 148 which is meshed with the transmission gear set 143, and the gear rod 148 is used to drive the pusher Plate 144 slides within the chute. After the block rubber is weighed, the rubber replenishing component moves down to replenish the rubber, and the toothed rod 148 that moves downward is engaged with the transmission gear set 143, and then drives the push plate 144 to slide on the slide rail 142 to one end of the locking rod 141, and passes through the card slot 146. Push the locking rod 141 out of the locking groove of the inner rod 181 to achieve the purpose of unlocking, and the elastic frame 12 can move downward. After the block rubber is conveyed away by the latter conveyor belt, the elastic frame 12 and the locking rod 141 are reset to redefine the elastic frame 12. Prevent the elastic frame 12 from moving down until the last piece of rubber continues to be conveyed.

Specifically, rectangular limit holes 21 are provided on both sides of the telescopic frame 2 , and movable rollers 31 are provided on both sides of the movable frame 3 . 31 is limited, so that the movable frame 3 is pushed by the second telescopic member 6, and the movable roller 31 rolls in the rectangular limit hole 21, so that the movable frame 3 can stably perform linear motion and is supported by the movable roller 31. .

Example 2

As shown in FIG. 6 to FIG. 14 , in combination with the technical solution of Embodiment 1, in this embodiment, the pressing component includes a polygonal track groove 51 , a limit roller 52 and a push rod 53 , and the polygonal track groove 51 is provided on both sides of the roller 4 . And it is fixedly connected with the roller 4; the movable frame 3 is provided with a fixed shaft 8, the polygonal track groove 51 is sleeved on the fixed shaft 8 through a bearing, and the fixed shaft 8 is fixed and fixed, so that the roller 4 is in the second telescopic part 6. Under the push, it rotates around the fixed shaft 8 through the polygonal track groove 51; the push rod 53 is slidably arranged on the fixed shaft 8 in the vertical direction; the limit roller 52 is rotatably connected to both ends of the push rod 53, and the limit roller 52 It is located in the polygonal track groove 51; the push rod 53 is provided with a pressure rod 54 to push the weighted rubber sheet 7 out of the material groove 41 through the pressure rod 54 to realize the function of replenishment.

By arranging a push assembly in the drum 4 , while the drum 4 rotates under the push of the second telescopic member 6 , the push rod 53 in the push assembly moves in a vertical direction under the rotation of the polygonal track groove 51 . , to push the rubber sheet 7 rotated to the vertical bottom of the drum 4 out of the trough 41 to realize rolling feeding, and rely on the rolling distance to convert the rubber sheet 7 required for the counterweight, effectively improving the accuracy of feeding.

Specifically, the feeding assembly includes a screw push roller 61, a drive bevel gear 62 and a material box 63 for placing multiple pieces of rubber sheets 7. The screw push roller 61 is rotatably arranged on both sides of the movable frame 3; the drive bevel gear 62 is provided with At the end of the spiral push roller 61, the two ends of the drum 4 are provided with annular bevel gears 9, and the transmission bevel gear 62 meshes with the annular bevel gear 9 for transmission, so as to drive the spiral push rollers 61 on both sides of the drum 4 through the rotation of the drum 4 to carry out. Synchronous and reverse rotation to synchronously push the rubber sheet 7 for vertical downward movement; the material box 63 is arranged on the movable frame 3, and the rubber sheet 7 is located in the material box 63 at a certain interval; further, the movable frame 3 is provided with a through groove , so that the rubber sheet 7 in the material box 63 can enter the material tank 41 through the through groove.

By arranging a feeding assembly on the movable frame 3, the drum 4 can be fed during the rotation, so as to press the rubber sheet 7 used for the counterweight into the feeding chute 41 for feeding, so that the rubber sheet 7 can be unloaded and aligned with the block. At the same time as the rubber is replenished, it also feeds the trough 41, so that the drum 4 always keeps the counterweight rubber sheet 7 in the trough 41 during the rotation process, which effectively improves the feeding speed and solves the problem of manual feeding. The high degree of automation further improves the feeding efficiency of block rubber packing.

Specifically, there are two spiral push rollers 61 ; the spiral groove 611 on the spiral push roller 61 at one end of the drum 4 is opposite to the spiral groove 611 on the spiral push roller 61 at the other end of the drum 4 , so that the drum 4 When the rotation drives the spiral push rollers 61 on both sides to rotate synchronously and reversely, the rubber sheet 7 is pushed into the material chute 41 for vertical unloading, so as to realize the feeding of the rubber sheet 7; The ends are provided with protrusions, so as to cooperate with the spiral grooves 611 on the spiral push roller 61, so that the spiral grooves 611 can drive the rubber sheet 7 to move vertically through the protrusions during the rotation. Wherein, each arc bottom edge 511 of the polygonal track groove 51 and the material trough 41 are arranged correspondingly along the circumferential direction of the drum 4, so that in the process of driving the polygonal track groove 51 to rotate by the drum 4, the pressing rod 54 always pushes the rubber in the vertical direction. The sheet 7 is separated from the trough 41, so that the rubber sheet 7 is pushed out of the trough 41 when the trough 41 is in contact with the block rubber; the vertical section of the trough 41 is a trapezoidal structure, and the lower bottom edge of the trapezoidal structure is located on the outer circle of the roller , so that the rubber sheet 7 can be clamped in the material trough 41 , and it is convenient to carry out material loading and unloading during the rotation of the drum 4 .

Specifically, the fixed shaft 8 is provided with a limit rod 81 along the vertical direction, and the push rod 53 is sleeved on the limit rod 81, so that the limit rod 81 can slide in the vertical direction, so as to facilitate the limit roller 52 in the polygonal track In the process of the groove 51 following the rotation of the drum 4, under the action of the polygonal track groove 51, the pressing rod 54 is pushed to move in the vertical direction, so as to push the weighted rubber sheet 7 out of the trough 41 and into the block rubber. Refill.

Example 3

As shown in FIG. 11 , in combination with the technical solution of Embodiment 2, this embodiment further includes a tie pin 10 , which is located in the through hole in the middle of the rubber sheet 7 ; the flat end of the tie nail 10 protrudes from the surface of the rubber sheet 7 , So that the rubber sheet 7 is located in the material box 63 through the tie pins 10 at intervals; a circular hole 42 is provided in the material trough 41 in the vertical direction opposite to the pressing rod 54, and the pressing rod 54 pushes the rubber sheet 7 out of the feeding trough through the round hole 42 41, and push the tie pin 10 to fasten the rubber sheet 7 on the block rubber, so as to prevent the block rubber from falling under the conveying belt, thus causing the problem that the weight of the block rubber does not meet the standard when packing, effectively improving the The packing accuracy of the block rubber improves the quality of the block rubber packing product.

By arranging the tying nails 10 on the weighted rubber sheet 7, and combined with the push assembly, the weighted rubber sheet 7 is fastened to the block rubber, so as to avoid the packing weight caused by the falling of the rubber sheet 7 during the conveying process of the block rubber. The problem of non-compliance with the standard appears, which effectively improves the accuracy of the packaging weight.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims

A natural rubber automatic weighing device is characterized in that: it includes a bracket, an elastic frame, a weighing platform, a locking member and a feeding component, the elastic bracket is connected to the bracket, and the weighing platform is fixed on the On the elastic frame, a fixing frame is connected to the upper part of the weighing platform, and a plurality of conveying rollers are rotatably connected to the fixing frame. The locking member is arranged on the frame, and the locking member is used to control the The expansion and contraction of the elastic frame, the feeding component is fixed on the bracket, the feeding component is located above the fixing frame, and the feeding component can unlock the locking member when the feeding is completed, so that the The elastic frame drives the rubber blocks placed on the conveying rollers to move downward under gravity.
The natural rubber automatic weighing device according to claim 1, wherein the feeding component comprises a telescopic frame, a movable frame, a roller, a pushing assembly and a feeding assembly, and the telescopic frame is extended through the first telescopic frame. The component is connected to the bracket, and the movable frame is connected to the telescopic frame through the second telescopic component; the roller is rotatably arranged on the movable frame, and a plurality of placing rubbers are evenly distributed on the roller along the circumferential direction. The feeding chute of the sheet; the pushing assembly is set in the drum, and the pushing assembly is telescopic through the rotation of the drum, so that when the feeding chute rotates to the bottom of the drum, the pushing assembly Push the rubber sheet out of the trough and press it on the block rubber that needs to be replenished; the feeding assembly is arranged on the movable frame, and the feeding assembly is connected with the drum in a driving manner, so that the The feeding assembly pushes the rubber sheet into the trough.
The natural rubber automatic weighing device according to claim 2, wherein the elastic frame comprises a plurality of first telescopic rods, and two ends of the plurality of first telescopic rods are respectively connected with the bracket and the scale. The first telescopic rod includes an inner rod and an outer rod, and the inner rod is slidably connected to the inside of the outer rod through a first spring.
The natural rubber automatic weighing device according to claim 3, wherein the locking member comprises a locking rod, a sliding rail, a transmission gear set and a push plate with tooth patterns, and the locking rod is twisted by twisting The spring is rotatably connected to the bracket, the inner rod is provided with a slot, the free end of the lock rod cooperates with the slot, the slide rail is connected to the bracket through a connecting rod, and the push plate It is slidably connected in the slide rail, the free end of the push plate is connected with a slot, the transmission gear set is fixed on the slide rail through a bearing seat, and the push plate is engaged with the transmission gear set. The telescopic frame is connected with a gear rod that is engaged with the transmission gear set, and the gear rod is used to drive the push plate to slide in the chute.
The natural rubber automatic weighing device according to claim 2, wherein the pushing component comprises a polygonal track groove, a limit roller and a push rod, and the polygonal track groove is provided on both sides of the drum and fixedly connected with the roller; the movable frame is provided with a fixed shaft, and the polygonal track groove is sleeved on the fixed shaft through a bearing; the push rod is slidably arranged on the fixed shaft along the vertical direction the limit roller is rotatably connected to both ends of the push rod, the limit roller is located in the polygon track groove; the push rod is provided with a pressure rod.
The automatic weighing device for natural rubber according to claim 5, characterized in that: the feeding assembly comprises a screw pushing roller, a transmission bevel gear and a material box for placing a plurality of the rubber sheets, and the screw The push rollers are rotatably arranged on both sides of the movable frame; the drive bevel gears are arranged at the ends of the helical push rollers, the two ends of the rollers are provided with ring bevel gears, and the drive bevel gears are connected with the The ring bevel gear engages and drives; the material box is arranged on the movable frame.
The automatic weighing device for natural rubber according to claim 6, characterized in that: the number of said screw pushing rollers is two; The spiral grooves on the spiral push roller at the other end have opposite directions of rotation, so that the rotation of the drum drives the spiral push rollers on both sides to rotate in a synchronous and reverse direction, and at the same time pushes the rubber sheet for vertical unloading. the trough.
The natural rubber automatic weighing device according to claim 2, wherein the two sides of the telescopic frame are provided with rectangular limit holes, and the two sides of the movable frame are provided with movable rollers, and the movable rollers are located on both sides of the movable frame. inside the rectangular limit hole.
The natural rubber automatic weighing device according to claim 5, wherein a limit rod is arranged along the vertical direction on the fixed shaft, and the push rod is sleeved on the limit rod, so that the The limit rod can slide vertically.
The automatic weighing device for natural rubber according to claim 5, further comprising a tie pin, the tie pin is located in the middle of the rubber sheet, and the flat end of the tie pin protrudes from the surface of the rubber sheet; There is a circular hole in the material trough facing the pressing rod in the vertical direction, the pressing rod pushes the rubber sheet out of the feeding trough through the circular hole, and pushes the tie pin to push the rubber sheet Tie on block rubber.