CN113858580B

CN113858580B - Extruder rubber strip feeder

Info

Publication number: CN113858580B
Application number: CN202111439730.8A
Authority: CN
Inventors: 田海涛; 王非; 丁春侠; 夏青
Original assignee: Luohe Bonwell Rubber Co ltd
Current assignee: Luohe Bonwell Rubber Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2023-06-30
Anticipated expiration: 2041-11-30
Also published as: CN113858580A

Abstract

The invention relates to a rubber strip feeder of an extruder, which effectively solves the problems of low automation degree, cost saving and labor saving of the existing rubber strip feeding equipment; the technical scheme that its solved includes that this device rubber strip adopts when entering between two horizontal poles, the both ends of rubber strip are supported by the horizontal pole, the centre is the bracing piece support, the rubber strip is the sunken state in the middle this moment, but three-point support has guaranteed that the rubber strip can not break away from bracing piece and horizontal pole, along with the upward movement of bracing piece, the sunken rubber strip in the middle becomes the bellied state in the middle gradually, the both ends have the trend of breaking away from the horizontal pole, cutter and rubber strip contact this moment, but be insufficient for cutting off the rubber strip, realize that the cutter compresses tightly the rubber strip on the bracing piece, drop when having avoided the rubber strip both ends to break away from the horizontal pole, when finally cutting off the rubber strip, two sections rubber strips are vertical state, easily enter into the inlet pipe of extruder.

Description

Extruder rubber strip feeder

Technical Field

The invention relates to the field of rubber tube production equipment, in particular to a rubber strip feeder of an extruder.

Background

The raw materials that the rubber tube production used are the sheet rubber, after the sheet rubber is cut into the rubber strip through slitter, throw the material to the extruder again through manual or through the supplementary rubber strip feeding of equipment, the material equipment of throwing of present stage needs to throw the vertical centre gripping of rubber strip one by one on the material equipment, rotate the equipment with the rubber strip one by one to the extruder feed inlet directly over at the uniform velocity rotation, through loosening and hold the device and realize at the rubber strip at the uniform velocity evenly throw the material under the action of gravity, however such equipment needs the workman to be from the rubber strip of material frame in will tiling originally, arrange into vertical form and adopt clamping device centre gripping one by one, although the human cost has been practiced thrift to a certain extent, practice thrift the basis of human cost lies in: when the material is manually fed, one worker can only charge one extruder, and one worker can charge a plurality of extruders at the same time through the equipment, but the labor intensity of the worker cannot be reduced, so that new equipment is needed at the present stage, the cost of manpower can be effectively saved, the labor intensity of the worker can be effectively reduced, and the rubber strip feeding equipment convenient for the worker to operate is convenient.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the rubber strip feeder of the extruder, which effectively solves the problems of low automation degree, cost saving and labor saving of the existing rubber strip feeding equipment.

The technical proposal for solving the problems comprises a hopper with a rectangular horizontal section and a large upper part, wherein a horizontal conveyor belt is arranged on the left side of the upper end of the hopper, a plurality of limit stops are uniformly distributed on the belt surface of the conveyor belt at intervals, two cross bars which are arranged at intervals in a front-back side-by-side way and are arranged below the conveyor belt are arranged right above the hopper, the right end of each cross bar is smoothly connected with a guide rod with the right side inclined upwards, the right end of the guide rod is close to but not contacted with the left end of the conveyor belt, a bracket is arranged above the hopper, a vertical polished rod is slidably arranged on the bracket, a cutter with a downward edge part is fixed at the lower end of the polished rod, a first spring is sleeved on the polished rod, one end of the first spring is fixed on the cutter, the other end of the first spring is fixed on the bracket, an electric cylinder with a downward extending end is fixed at the left side of the bracket, A supporting rod which is arranged right below the cutter is arranged between the two cross rods, the left end of the supporting rod is fixed at the extending end part of the electric cylinder, a first belt pulley is rotatably arranged at the front side of the hopper, a second belt pulley is coaxially fixed on the mandrel of the conveying belt, the first belt pulley is connected with the second belt pulley through a belt, a ratchet wheel is coaxially fixed on the front side of the first belt pulley, a mounting groove capable of horizontally moving is arranged below the ratchet wheel, a plurality of pawls are uniformly distributed in the mounting groove at intervals, a first cylinder with a piston rod with a reset function is arranged below the electric cylinder, the extending end of the electric cylinder can be contacted with the piston rod of the first cylinder and extruded, a second cylinder capable of driving the mounting groove to move left and right is arranged below the first cylinder, and the first cylinder is connected with the second cylinder through a gas pipe.

Preferably, the limit stop is provided with a space for the guide rod to pass through.

Preferably, a rotating shaft is rotatably arranged above the conveyor belt, a supporting rod which is inclined to the left side and is contacted with the surface of the conveyor belt is fixed on the rotating shaft, and a first torsion spring which can enable the rotating shaft to reset and rotate is sleeved on the rotating shaft.

Preferably, the supporting rod is provided with a knife slot.

Preferably, a second spring is arranged in the first cylinder, one end of the second spring is fixed at the upper end of the cylinder body of the first cylinder, the other end of the second spring is fixed on the piston of the first cylinder, a third spring is arranged in the second cylinder, one end of the third spring is fixed at the right end of the cylinder body of the second cylinder, and the other end of the third spring is fixed on the piston of the second cylinder.

Preferably, the pawls are hinged in the mounting groove, and each pawl is provided with a second torsion spring capable of resetting the pawl.

The device has the following advantages compared with the traditional equipment:

1. the device realizes the vertical state when the horizontally arranged rubber strip is automatically driven into the feeding, effectively solves the problem that the labor cost can only be saved in the feeding process of the extruder at the present stage, but cannot solve the problem of high labor intensity of workers.

2. When this device rubber strip adopted to get into between two horizontal poles, the both ends of rubber strip were supported by the horizontal pole, and the centre is the bracing piece support, and the rubber strip was the sunken state in the middle this moment, but three-point support guaranteed that the rubber strip can not break away from bracing piece and horizontal pole, along with the upward movement of bracing piece, the sunken rubber strip in the middle becomes middle bellied state gradually, and there is the trend that breaks away from the horizontal pole both ends, cutter and rubber strip contact this moment, but be insufficient to cut off the rubber strip, realize that the cutter compresses tightly the rubber strip on the bracing piece, drop when having avoided the rubber strip both ends to break away from the horizontal pole, when finally cutting off the rubber strip, two sections rubber strips all are vertical state, easily enter into the inlet pipe of extruder.

3. The device realizes the cutting-off of the rubber strip and the rubber strip when the supporting rod is lifted up through the up-and-down movement of the electric cylinder, and simultaneously can realize the unidirectional movement of the driving belt wheel group through the ratchet pawl, so that the conveying belt is uniformly fed onto the cross rod in cooperation with the electric cylinder, and the feeding and feeding problems of the rubber strip can be comprehensively and efficiently solved by the whole device.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a top cross-sectional view of the present invention.

Fig. 4 is a cross-sectional view of a first cylinder and a second cylinder transmission structure according to the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the drawings.

As can be seen from fig. 1 to 4, the invention comprises a hopper 1 with a rectangular horizontal section, wherein the hopper 1 is arranged on a feed pipe of an extruder, a horizontal conveyor belt 2 is arranged on the left side of the upper end of the hopper 1, the conveyor belt 2 is fixed on the hopper 1 through a mounting frame, a plurality of limit stops 3 are uniformly distributed on the belt surface of the conveyor belt 2 at intervals, two cross bars 4 are arranged right above the hopper 1 and arranged at intervals side by side below the conveyor belt 2, the cross bars 4 are fixed on the front and rear side walls of the hopper 1 through mounting bars, the right end of each cross bar 4 is smoothly connected with a guide bar 5 with a right side inclined upwards, the right end of the guide bar 5 is close to but not contacted with the left end of the conveyor belt 2, a bracket 6 is arranged above the hopper 1, the bracket 6 is L-shaped, a vertical polish rod 7 is slidably arranged on the bracket 6, the polish rod 7 is arranged on a transverse plate part at the upper end of the bracket 6, the lower end of the polish rod 7 is fixed with a cutter 8 with a downward blade part, the polish rod 7 is sleeved with a first spring 9, one end of the first spring 9 is fixed on the cutter 8, the other end of the first spring is fixed on the bracket 6, the left side of the bracket 6 is fixed with an electric cylinder 10 with a downward extension end, a support rod 11 which is arranged right below the cutter 8 is arranged between two cross rods 4, the left end of the support rod 11 is fixed at the extension end of the electric cylinder 10, the front side of the hopper 1 is rotatably provided with a first belt pulley 12, the mandrel of the conveyor belt 2 is coaxially fixed with a second belt pulley 13, the size ratio of the first belt pulley 12 and the second belt pulley 13 is required to meet, the second belt pulley 13 drives the conveyor belt 2 to move a distance which enables a rubber strip to slide from the conveyor belt 2 to the position between the two cross rods 4 through the guide rod 5 when the first belt pulley 12 is connected with the second belt pulley 13 through the belt, a ratchet wheel 14 is coaxially fixed on the front side of the first belt wheel 12, a horizontally movable mounting groove 15 is arranged below the ratchet wheel 14, a plurality of pawls 16 are uniformly distributed in the mounting groove 15 at intervals, a first air cylinder 17 with a piston rod with a reset function is arranged below the electric cylinder 10, the extending end of the electric cylinder 10 can be contacted with and extruded by the piston rod of the first air cylinder 17, a second air cylinder 18 capable of driving the mounting groove 15 to move left and right is arranged below the first air cylinder 17, the first air cylinder 17 is connected with the second air cylinder 18 through an air pipe, the extending end of the electric cylinder 10 drives the supporting rod 11 to move below the cross rod 4 and then starts to extrude the piston rod of the first air cylinder 17, air in the first air cylinder 17 is extruded into the second air cylinder 18, the second air cylinder 18 stretches and drives the mounting groove 15 to move right, in the process, the pawls 16 drive the ratchet wheel 14 to rotate so that the first belt wheel 12 drives the second belt wheel 13 to rotate through a belt, and when the second air cylinder 18 resets, the pawls 16 contact the ratchet wheel 14 rotate around a hinge shaft so that the ratchet wheel 14 does not drive the ratchet wheel 14 to rotate, and unidirectional movement of the ratchet wheel 14 is realized.

In order to realize that the limit stop 3 is not in contact with the guide rod 5, a space through which the guide rod 5 can pass is provided on the limit stop 3.

In order to uniformly lay the rubber strip on the conveyor belt 2 and tightly attach to the limit stop 3, a rotating shaft 19 is rotatably arranged above the conveyor belt 2, a supporting rod 20 which is inclined to the left side and is contacted with the belt surface of the conveyor belt 2 is fixed on the rotating shaft 19, and a first torsion spring which can enable the rotating shaft 19 to reset and rotate is sleeved on the rotating shaft.

In order to realize that the cutter 8 is convenient for cutting off the rubber strip, the supporting rod 11 is provided with a cutter groove.

In order to realize the resetting of the first cylinder 17 and the second cylinder 18, a second spring 21 is disposed in the first cylinder 17, one end of the second spring 21 is fixed at the upper end of the cylinder body of the first cylinder 17, the other end is fixed on the piston of the first cylinder 17, a third spring 22 is disposed in the second cylinder 18, one end of the third spring 22 is fixed at the right end of the cylinder body of the second cylinder 18, and the other end is fixed on the piston of the second cylinder 18.

In order to realize the installation of the pawls 16, the pawls 16 are hinged in the installation groove 15, and a second torsion spring capable of resetting each pawl 16 is arranged on each pawl.

The specific working process of the invention comprises the following steps: when the device is used, a rubber strip is placed on the conveyor belt 2, the rubber strip is separated through the limit stop 3, the extending end of the electric cylinder 10 extends to enable the supporting rod 11 to be placed under the transverse rod 4 in an initial state, the extending end of the electric cylinder 10 does not press the piston rod of the first cylinder 17, the extending end of the electric cylinder 10 extends downwards firstly and presses the first cylinder 17 to enable gas in the first cylinder 17 to be conveyed into the second cylinder 18 through a gas pipe, the extension of the second cylinder 18 is achieved, the second spring 21 is stretched, the third spring 22 is compressed, the second cylinder 18 extends to drive the mounting groove 15 to move rightwards, the plurality of pawls 16 drive the ratchet wheels 14 to rotate anticlockwise, the rotation of the ratchet wheels 14 drives the conveyor belt 2 to move through the pulley group in the process, one rubber strip at the left end of the rotation of the conveyor belt 2 falls off the conveyor belt 2 and slides onto the transverse rod 4 through the guide rod 5, at the moment, two ends of the rubber strip are supported by the cross rod 4, the middle of the rubber strip is supported by the supporting rod 11, so that one rubber strip is supported by three points, meanwhile, the rubber strip has certain hardness and flexibility, the rubber strip is prevented from being separated from the cross rod 4 and the supporting rod 11, the electric cylinder 10 is stretched to the limit position to begin to retract, the first air cylinder 17 and the second air cylinder 18 realize the backflow of air in the second air cylinder 18 into the first air cylinder 17 under the reset action of the second spring 21 and the third spring 22 in the retracting process, the retracting of the second air cylinder 18 realizes the left movement of the mounting groove 15, the pawl 16 rotates around the hinge shaft without driving the ratchet wheel 14 to rotate in the process, the supporting rod 11 is gradually moved to be arranged above the cross rod 4 from the original position below the cross rod 4 in the retracting process of the electric cylinder 10 and is gradually contacted with the cutter 8, at this time, the rubber strip is not cut off by the initial cutter 8 contacted by the cutter 8 under the action of the first spring 9, but the cutter 8 is driven to move upwards in the retraction process of the electric cylinder 10, the rubber strip is changed into a state that the middle is upwards protruded from the original middle downwards, and along with the continuous upward movement of the supporting rod 11, the two ends of the rubber strip are gradually separated from the cross rod 4, at this time, the rubber strip is in a state of tending to be vertical, along with the continuous retraction of the electric cylinder 10, the first pressure spring is continuously extruded, and finally the cutter 8 cuts off the rubber strip with the two ends vertically downwards from the middle, and the cut rubber strip falls into the funnel and is placed in the feeding pipe.

After the completion, the electric cylinder 10 is reset and elongated, and when the first cylinder 17 is extruded again, the next rubber strip can be driven to enter the cross rod 4 and finally be lifted and cut off for feeding, and the uniform feeding of the rubber strip can be realized by repeating the above actions.

According to the mechanism, the transverse rubber strips are firstly lifted and cut off from the middle when the rubber strips are fed, so that the rubber strips are transversely placed when placed, the operation of workers is convenient, the labor cost can be saved, meanwhile, the labor intensity of the workers can be reduced, when the rubber strips are fed into an extruder, the transverse rubber strips are driven to be vertical, the feeding is convenient, and the feeding process can be carried out twice at a time, so that the whole feeding process is more efficient and reasonable.

Claims

1. The utility model provides an extruder rubber strip feeder, including big-end-up and horizontal cross-section are hopper (1) of rectangle, its characterized in that, the left side of the upper end of hopper (1) is equipped with a horizontally conveying belt (2), the interval equipartition has a plurality of limit stop (3) on the area face of conveying belt (2), be equipped with two front and back side by side interval arrangement and place in horizontal pole (4) below conveying belt (2) directly over hopper (1), the right-hand member smooth connection of every horizontal pole (4) has a guide bar (5) that right side leaned up, the right-hand member of guide bar (5) is close to but does not contact with the left end of conveying belt (2), the top of hopper (1) is equipped with a support (6), slidable mounting has a vertically polished rod (7) on support (6), the lower extreme of polished rod (7) is fixed with one sword portion cutter (8) down, the cover is equipped with a first spring (9) on polished rod (7), one end of first spring (9) is fixed on (8), the other end is fixed on support (6) is fixed on one end, the right side is fixed with a left end of a jar (10) and stretches out between the end of a jar (11) and the end of a jar (11) is fixed to stretch out directly over left end (10), the front side of hopper (1) rotates installs a first band pulley (12), the epaxial coaxial second band pulley (13) that is fixed with of dabber of conveyer belt (2), first band pulley (12) are connected through the belt with second band pulley (13), the front side coaxial first band pulley (12) is fixed with a ratchet (14), ratchet (14) below is equipped with one but horizontal migration's mounting groove (15), a plurality of pawls (16) have been equipartition in the interval in mounting groove (15), electric cylinder (10) below is equipped with a first cylinder (17) that the piston rod has reset function, electric cylinder (10) stretches out the end and can contact and extrude with first cylinder (17) piston rod, the below of first cylinder (17) is equipped with a second cylinder (18) that can drive mounting groove (15) and control the removal, first cylinder (17) are connected through the trachea with second cylinder (18).

2. An extruder rubber strip dispenser according to claim 1, characterized in that the limit stop (3) is provided with a space for the passage of a guide rod (5).

3. The rubber strip feeder of the extruder according to claim 1, wherein a rotating shaft (19) is rotatably arranged above the conveyor belt (2), a supporting rod (20) which is inclined to the left side and is contacted with the belt surface of the conveyor belt (2) is fixed on the rotating shaft (19), and a first torsion spring capable of enabling the rotating shaft (19) to reset is sleeved on the rotating shaft.

4. An extruder rubber strip feeder according to claim 1, characterized in that the support bar (11) is provided with a knife channel.

5. The extruder rubber strip feeder according to claim 1, wherein a second spring (21) is arranged in the first cylinder (17), one end of the second spring (21) is fixed at the upper end of the cylinder body of the first cylinder (17), the other end of the second spring is fixed on the piston of the first cylinder (17), a third spring (22) is arranged in the second cylinder (18), one end of the third spring (22) is fixed at the right end of the cylinder body of the second cylinder (18), and the other end of the third spring is fixed on the piston of the second cylinder (18).

6. An extruder rubber strip dispenser according to claim 1, wherein the pawls (16) are hinged in the mounting groove (15), and each pawl (16) is provided with a second torsion spring for resetting it.