阅读说明：本技术 一种橡胶预成型装置 (Rubber preforming device ) 是由 汤啸 杨君平 汤克红 范淑贞 于 2020-12-19 设计创作，主要内容包括：本发明属于橡胶制造技术领域,具体的说是一种橡胶预成型装置,包括底板、料筒和切割环；所述底板上方固连有支撑架；所述支撑架远离底板一侧圆弧形设计；所述支撑架远离底板一侧固连有料筒；所述料筒圆柱形空腔式结构体；所述料筒远离支撑架一侧固连有料斗；所述料斗与料筒内腔导通；所述料筒靠近料斗一端固连有动力箱；所述动力箱圆盘形设计；本发明通过设置延伸管、支撑管以及传动杆,利用电动机的的转动带动传动杆转动,进而利用连接环与传动杆上螺纹槽之间的啮合使延伸管进行匀速运动,进而使挤出的橡胶条在支撑管和延伸管的支撑作用下进行一段时间的散热,进而使橡胶条进行初步硬化,便于切割环进行切割。(The invention belongs to the technical field of rubber manufacturing, and particularly relates to a rubber preforming device which comprises a bottom plate, a charging barrel and a cutting ring, wherein the charging barrel is arranged on the bottom plate; a support frame is fixedly connected above the bottom plate; the support frame is designed in an arc shape at one side far away from the bottom plate; a charging barrel is fixedly connected to one side of the support frame, which is far away from the bottom plate; the cylindrical cavity type structure body of the charging barrel; one side of the charging barrel, which is far away from the support frame, is fixedly connected with a hopper; the hopper is communicated with the inner cavity of the charging barrel; one end of the charging barrel, which is close to the hopper, is fixedly connected with a power box; the power box is designed in a disc shape; according to the invention, the extension pipe, the support pipe and the transmission rod are arranged, the rotation of the motor is utilized to drive the transmission rod to rotate, the extension pipe is enabled to move at a constant speed by utilizing the engagement between the connecting ring and the thread groove on the transmission rod, and the extruded rubber strip is subjected to heat dissipation for a period of time under the supporting action of the support pipe and the extension pipe, so that the rubber strip is preliminarily hardened, and the cutting of the cutting ring is facilitated.)

1. A rubber preforming device, characterized in that: comprises a bottom plate (1), a charging barrel (2) and a cutting ring (5); a support frame (11) is fixedly connected above the bottom plate (1); the support frame (11) is designed in an arc shape at one side far away from the bottom plate (1); the side, far away from the bottom plate (1), of the support frame (11) is fixedly connected with a charging barrel (2); the charging barrel (2) is a cylindrical cavity type structure body; a hopper (21) is fixedly connected to one side of the charging barrel (2) far away from the support frame (11); the hopper (21) is communicated with the inner cavity of the charging barrel (2); one end of the charging barrel (2) close to the hopper (21) is fixedly connected with a power box (22); the power box (22) is of disc-shaped design; one side of the power box (22) far away from the charging barrel (2) is fixedly connected with a motor (23) through a bolt; the output shaft of the motor (23) extends into the power box (22); an output shaft of the motor (23) is positioned in the power box (22) and fixedly connected with a screw rod (24); the screw (24) penetrates through the power box (22) and extends into the inner cavity of the charging barrel (2); the screw (24) is positioned in the power box (22) and is internally meshed with an extrusion plate (25); the extrusion plate (25) is in sliding connection with the inner cavity of the charging barrel (2); the end, far away from the power box (22), of the charging barrel (2) is designed in a conical manner; the end of the charging barrel (2) far away from the power box (22) is designed to be opened; a supporting tube (26) is fixedly connected to the opening of the charging barrel (2); the outer side of the supporting tube (26) is sleeved with an extension tube (3) in a sliding manner; the extension pipe (3) is elastically connected with the charging barrel (2) through a spring; the support frame (11) is provided with a mounting groove (12) corresponding to the power box (22); a transmission rod (31) is rotatably connected in the mounting groove (12) through a bearing; the transmission rods (31) are symmetrically designed on two sides of the charging barrel (2); the transmission rod (31) extends into the power box (22); one end of the transmission rod (31) positioned in the power box (22) is sleeved with a driven wheel (32); the output shaft of the motor (23) is positioned in the power box (22) and is internally connected with a driving wheel (33); the driving wheel (33) is meshed with the driven wheel (32); a thread groove (34) is formed in the surface of one end, away from the power box (22), of the transmission rod (31); one end of the extension pipe (3) far away from the charging barrel (2) is fixedly connected with symmetrically designed connecting rings (35) through guide rods; the connecting ring (35) is connected with the transmission rod (31) in a sliding manner; a first groove (36) is formed in the inner wall of the connecting ring (35); the first groove (36) is internally and slidably connected with a meshing tooth (37); the first groove (36) and the meshing teeth (37) are both in a T-shaped design; the meshing teeth (37) are elastically connected with one end, far away from the transmission rod (31), of the first groove (36) through a spring; in the initial state, the meshing teeth (37) extend into a thread groove (34) on the transmission rod (31) under the action of a spring; one side of the transmission rod (31) far away from the extension pipe (3) is connected with a limiting ring (4) in a sliding manner; the limiting ring (4) is in threaded connection with a fixing bolt (41); one side of the limiting ring (4) facing the connecting ring (35) is fixedly connected with symmetrically designed extrusion blocks (42); the side, away from the axis of the limiting ring (4), of the extrusion block (42) is designed to be an even inclined surface; the connecting ring (35) is provided with a second groove (43) corresponding to the limiting ring (4); the second groove (43) is communicated with the first groove (36); the extrusion block (42) is used for extruding the meshing teeth (37) to enable the meshing teeth (37) to be separated from the thread groove (34); one side of the extension pipe (3) far away from the charging barrel (2) is fixedly connected with a cutting ring (5) for cutting the extruded rubber strip.

2. A rubber preforming device according to claim 1, wherein: a cutting groove (51) is formed in the annular inner wall of the cutting ring (5); a cutter (52) is rotationally connected in the cutting groove (51); a first through groove (53) is formed in one side, close to the supporting pipe (26), of the cutting ring (5); the first through groove (53) is designed in a cross shape; a push rod (54) is elastically connected in the first through groove (53) through a spring; the cutter (52) is rotationally connected with the push rod (54); the connecting part of the push rod (54) and the cutter (52) is in threaded engagement.

3. A rubber preforming device according to claim 2, wherein: the first through groove (53) and the push rod (54) are symmetrically designed; the number of the cutters (52) is two, and the cutters are designed in an up-and-down symmetrical mode; the cutters (52) are all in a semicircular design; the two cutters (52) are provided with a through hole (55) together; the diameter of the through hole (55) is larger than that of the inner cavity of the support tube (26).

4. A rubber preforming device according to claim 3, wherein: both sides of the cutting groove (51) are fixedly connected with scraping plates (56); the scraper (56) is made of an elastic metal sheet material; the scraper (56) is elastically connected with one end, far away from the hinged point, of the cutting groove (51) through a spring; one side of the scraper (56) close to the inner wall of the cutting groove (51) is fixedly connected with an expansion bag (57); a squeezing bag (58) is fixedly connected with one side of the first through groove (53) and the push rod (54) far away from the cutting groove (51); the pressing bag (58) is communicated with the expansion bag (57).

5. A rubber preforming device according to claim 1, wherein: one side of the charging barrel (2) close to the supporting tube (26) is fixedly connected with a positioning plate (6); the extension pipe (3) is fixedly connected with a moving plate (61); a corrugated pipe (62) is fixedly connected between the moving plate (61) and the positioning plate (6); the bellows (62) is of annular design; the upper part of the corrugated pipe (62) is communicated with an external water source through a conduit.

6. A rubber preforming device according to claim 5, wherein: the corrugated pipe (62) is fixedly connected with a water inlet pipe (63) and a water outlet pipe (64); the water inlet pipe (63) and the water outlet pipe (64) are only one-way guide pipes; the water inlet pipe (63) is close to the positioning plate (6), and the water outlet pipe (64) is close to the moving plate (61), so that the water flow in the corrugated pipe (62) can flow directionally.

Technical Field

The invention belongs to the technical field of rubber manufacturing, and particularly relates to a rubber preforming device.

Background

In the rubber preforming machine among the prior art when carrying out the preforming to rubber, use hydraulic means to extrude the rubber of high temperature state into strip usually, and cut it into appointed size through the cutter, and then be convenient for follow-up vulcanization moulding, but because rubber is its temperature itself higher at the in-process of extruding, the texture is softer, when cutting, rubber itself is easily stained with on the cutter, simultaneously because its soft texture, when cutting, can lead to the incision face to have certain deformation, and then the rubber piece weight that leads to surely has certain difference, simultaneously among the prior art cutting knife majority need use the cutting motor to drive, cut the rubber strip through high-speed rotation, high-speed pivoted cutter need dispose the safety cover, certain potential safety hazard still exists during the operation, it is comparatively troublesome during the use.

Cutting device of rubber model preforming machine published by Chinese patent application No.: 2011202260819, including cutter motor, speed change mechanism, triangular supports frame, flywheel axle, cutter, frame and conveyer constitution, the frame connect on the aircraft nose of rubber model preforming machine, conveyer installs in the frame lower part, this utility model compares simple structure with prior art, and is more complete in function, the interval and the cutting speed of cutter are adjusted conveniently, but use the flywheel axle to drive in this scheme and play and carry out high-speed rotation, have certain potential safety hazard when using, and when the cutting, single cutter cutting effect is relatively poor.

In view of the above, the present invention develops a rubber preforming device to solve the above technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems, the invention provides a rubber preforming device.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a rubber preforming device, which comprises a bottom plate, a charging barrel and a cutting ring, wherein the charging barrel is arranged on the bottom plate; a support frame is fixedly connected above the bottom plate; the support frame is designed in an arc shape at one side far away from the bottom plate; a charging barrel is fixedly connected to one side of the support frame, which is far away from the bottom plate; the cylindrical cavity type structure body of the charging barrel; one side of the charging barrel, which is far away from the support frame, is fixedly connected with a hopper; the hopper is communicated with the inner cavity of the charging barrel; one end of the charging barrel, which is close to the hopper, is fixedly connected with a power box; the power box is designed in a disc shape; one side of the power box, which is far away from the charging barrel, is fixedly connected with a motor through a bolt; the output shaft of the motor extends into the power box; the output shaft of the motor is positioned in the power box and fixedly connected with a screw; the screw rod penetrates through the power box and extends into the inner cavity of the charging barrel; the screw rod is positioned in the power box and is internally engaged with an extrusion plate; the extrusion plate is connected with the inner cavity of the charging barrel in a sliding manner; the end, far away from the power box, of the charging barrel is designed to be conical; the opening of one end of the charging barrel, which is far away from the power box, is designed; a supporting tube is fixedly connected to the opening of the charging barrel; an extension pipe is sleeved outside the supporting pipe in a sliding manner; the extension pipe is elastically connected with the charging barrel through a spring; the supporting frame is provided with a mounting groove corresponding to the power box; a transmission rod is rotatably connected in the mounting groove through a bearing; the transmission rods are symmetrically arranged at two sides of the charging barrel; the transmission rod extends into the power box; one end of the transmission rod, which is positioned in the power box, is sleeved with a driven wheel; the output shaft of the motor is positioned in the power box and is sleeved with a driving wheel; the driving wheel is meshed with the driven wheel; the surface of one end, far away from the power box, of the transmission rod is provided with a thread groove; one end of the extension pipe, far away from the charging barrel, is fixedly connected with symmetrically designed connecting rings through a guide rod; the connecting ring is connected with the transmission rod in a sliding manner; the inner wall of the connecting ring is provided with a first groove; the first groove is internally and slidably connected with meshing teeth; the first groove and the meshing teeth are in T-shaped design; the meshing teeth are elastically connected with one end, far away from the transmission rod, of the first groove through a spring; under the initial state, the meshing teeth extend into the thread groove on the transmission rod under the action of the spring; one side of the transmission rod, which is far away from the extension pipe, is connected with a limiting ring in a sliding manner; the limiting ring is in threaded connection with a fixing bolt; one side of the limiting ring, which faces the connecting ring, is fixedly connected with symmetrically designed extrusion blocks; the side, far away from the axis of the limiting ring, of the extrusion block is designed to be an even inclined surface; the connecting ring is provided with a second groove corresponding to the limiting ring; the second groove and the first groove are in a conduction design; the extrusion block is used for extruding the meshing teeth to enable the meshing teeth to be separated from the thread grooves; a cutting ring is fixedly connected to one side of the extension pipe, which is far away from the charging barrel, and is used for cutting the extruded rubber strip;

in the prior art, when rubber is preformed in a rubber preforming machine, a hydraulic device is generally used for extruding rubber in a high-temperature state into strips, the strips are cut into a specified size by a cutter, and then subsequent vulcanization forming is facilitated, but because the temperature of the rubber is high in the extrusion process and the rubber is soft, the rubber is easy to adhere to the cutter during cutting, and because of the soft texture, a cut surface can be deformed to a certain extent during cutting, so that the weight of a cut rubber block is different to a certain extent, when the rubber preforming machine works, heated rubber is introduced into an inner cavity of a material barrel on a support frame through the material barrel, a motor is started, an output shaft of the motor rotates to drive a screw rod to rotate, so that an extrusion plate meshed with the screw rod slides in the material barrel, and the rubber in the material barrel is extruded in the sliding process, the rubber is moved to the open end of the charging barrel and extruded to the outside through the open end of the charging barrel to form a rubber strip, the output shaft of the motor drives the driving wheel to rotate when rotating, and then the driving wheel is driven to rotate at a constant speed, the connecting ring at one end, far away from the motor, of the driving rod rotating at the constant speed drives the extension pipe to slide on the supporting pipe through the meshing of the meshing teeth and the thread groove, the rubber strip is extruded to the outside through the supporting pipe, and because the rubber strip and the extension pipe have the same moving speed and the diameter of the extension pipe is larger than that of the supporting pipe, the rubber strip with softer texture falls into the extension pipe and gradually contacts with the supporting pipe and the extension pipe, the temperature contained in the rubber strip is emitted to the outside, and along with the continuous cooling of the rubber strip in the supporting pipe and the extension pipe, the surface texture of the rubber strip is gradually hardened, when the extension, and moves along the second groove to the first groove, and utilizes the bevel edge to extrude the meshing teeth in the first groove, so that the meshing teeth extrude the spring to the deep part of the first groove, the connecting ring is disengaged from the thread groove, and the extension pipe loses the limitation of the connecting ring, at the moment, under the action force of the spring, the extension pipe is quickly reset, so that the hardened rubber strip and the extension pipe generate displacement, the rubber strip is conveniently cut by the cutting ring, the extension pipe, the supporting pipe and the transmission rod are arranged, the transmission rod is driven to rotate by the rotation of the motor, the extension pipe is enabled to carry out uniform motion by utilizing the engagement between the connecting ring and the thread groove on the transmission rod, and the extruded rubber strip is enabled to carry out heat dissipation for a period of time under the supporting action of the supporting pipe and the extension pipe, so that the rubber strip is primarily hardened, and the cutting ring is conveniently cut, rubber strip can also avoid rubber strip deformation to block up the extension pipe effectively because with synchronous motion between the extension pipe, and the spacing ring uses fixing bolt can freely remove on the transfer line simultaneously, and then carries out the accuse to the displacement of extension pipe, can control cutting length effectively, the quality of accuse rubber strip, and then the accurate cutting of effectual messenger's rubber strip is more convenient and swift.

Preferably, the annular inner wall of the cutting ring is provided with a cutting groove; a cutter is rotationally connected in the cutting groove; a first through groove is formed in one side, close to the supporting tube, of the cutting ring; the first through groove is in a cross-shaped design; a push rod is elastically connected in the first through groove through a spring; the cutter is rotationally connected with the push rod; the connecting part of the push rod and the cutter is in threaded engagement; when the rubber strip cutting device works, most of cutting knives in the prior art need to be driven by a cutting motor, rubber strips are cut by high-speed rotation, a protective cover needs to be configured on a cutter which rotates at high speed, certain potential safety hazards exist during operation, the rubber strip cutting device is troublesome to use, through the arrangement of a cutting ring and a cutting groove, when meshing teeth are disengaged between a connecting ring and a transmission rod under the action of an extrusion block, an extension pipe is quickly reset under the action of a spring, a push rod is contacted with a charging barrel in the resetting process of the extension pipe, the push rod slides towards the inside of a first through groove, the push rod is extruded towards the deep part of the first through groove due to the threaded connection of the push rod and the cutter, the cutter rotates in the cutting groove, the rubber strips are cut by the cutter, meanwhile, because the cutting ring is fixedly connected onto the extension pipe, the reset extension pipe is disengaged from the limitation of the extrusion block, the meshing teeth, and then make between the rubber strip of extension tube and removal static relatively, and then the effectual cutter of avoiding forms the restriction to the rubber strip at the in-process that resets after cutting the rubber strip.

Preferably, the first through groove and the push rod are symmetrically designed; the number of the cutters is two, and the cutters are designed in an up-and-down symmetrical mode; the cutters are all in a semicircular design; the two cutters are provided with a conducting hole together; the diameter of the conducting hole is larger than that of the inner cavity of the supporting tube; during operation, through setting up the cutter of symmetrical design, when cutting, through the mutual dislocation shearing of two cutters, and then the effectual cutter that makes is better to the cutting effect of rubber strip, and the setting for of semi-circular conducting hole utilizes convex cutter point of a knife and rubber strip appearance comparatively to accord with on the one hand simultaneously, makes the cutting more convenient, still can not form the hindrance effect to the reseing of extension pipe simultaneously.

Preferably, both sides of the cutting groove are fixedly connected with scraping plates; the scraper is made of an elastic metal sheet material; the scraper is elastically connected with one end of the cutting groove far away from the hinged point through a spring; one side of the scraper close to the inner wall of the cutting groove is fixedly connected with an expansion bag; the first through groove and one side of the push rod, which is far away from the cutting groove, are fixedly connected with an extrusion bag; the extrusion bag and the expansion bag are communicated; when the rubber strip cutting machine works, the push rod moves towards the inside of the first through groove, the shape of the extrusion bag is enlarged, negative pressure is formed in the extrusion bag, the expansion bag is contracted, the scraper plate is attached to the side wall of the cutting groove, the baffle cannot block cutting of the cutter, and when the push rod is rebounded and reset, the internal gas is input into the expansion bag again by the extrusion bag, the expansion bag drives the scraper plate to be in contact with the cutter, the cutter is cut and rubbed effectively, cleaning of rubber attached to the cutter is facilitated, and the phenomenon that the cutter cannot cut rubber strips effectively due to the fact that too much rubber is attached to the cutter in a long-time working process is avoided effectively.

Preferably, one side of the charging barrel, which is close to the supporting tube, is fixedly connected with a positioning plate; the extension pipe is fixedly connected with a movable plate; a corrugated pipe is fixedly connected between the moving plate and the positioning plate; the corrugated pipe is designed in an annular mode; the upper part of the corrugated pipe is communicated with an external water source through a guide pipe; the during operation, the extension pipe is at the uniform velocity under the effect of go-between to keeping away from feed cylinder one side motion, and then make the movable plate move along with, distance grow between movable plate and the locating plate, lead to the bellows between movable plate and the locating plate to stretch out gradually, and then make the cavity grow in the bellows form certain negative pressure, the negative pressure will extract external water source through the pipe, and then make the aqueous solution content increase of filling in the bellows, and utilize the great specific heat capacity of aqueous solution quick to extension pipe and stay tube cool down, and then accelerate the refrigerated rate of rubber strip, utilize the heat of aqueous solution absorption rubber strip simultaneously, compare in making the heat give off to the air, can recycle the heat effectively, comparatively accord with energy saving and emission reduction's environmental protection theory.

Preferably, the corrugated pipe is fixedly connected with a water inlet pipe and a water outlet pipe; the water inlet pipe and the water outlet pipe are only one-way guide pipes; the water inlet pipe is close to the positioning plate, and the water outlet pipe is close to the moving plate, so that water flow in the corrugated pipe can flow directionally; the during operation, through setting up inlet tube and outlet pipe, extract the rivers when the bellows is unfolded to pass through the outlet pipe with rivers and discharge when the bellows resets, draw water, the drainage in single pipe in comparison, can change the rivers in the bellows in a circulation effectively, and then effectual messenger's rivers temperature is closer with external water source temperature, and the rubber strip of being convenient for dispels the heat.

The invention has the following beneficial effects:

1. the rubber preforming device of the invention utilizes the rotation of the motor to drive the transmission rod to rotate by arranging the extension pipe, the supporting pipe and the transmission rod, thereby utilizing the engagement between the connecting ring and the thread groove on the transmission rod to enable the extension pipe to carry out uniform motion, so that the extruded rubber strip can radiate heat for a period of time under the supporting action of the supporting tube and the extending tube, thereby the rubber strip is initially hardened and is convenient for the cutting ring to cut, the rubber strip can effectively avoid the rubber strip from being deformed to block the extension pipe due to the synchronous movement between the rubber strip and the extension pipe, meanwhile, the spacing ring can freely move on the transmission rod by using a fixing bolt, and then carry out the accuse to the migration distance of extension pipe, can control cutting length effectively, the quality of accuse rubber strip, and then effectual accurate cutting that makes the rubber strip convenient more and swift.

2. According to the rubber preforming device, the extension pipe moves towards one side far away from the charging barrel at a constant speed under the action of the connecting ring, so that the moving plate moves along with the extending pipe, the distance between the moving plate and the positioning plate is increased, the corrugated pipe between the moving plate and the positioning plate is gradually unfolded, the cavity in the corrugated pipe is increased to form a certain negative pressure, the negative pressure extracts an external water source through the guide pipe, the content of a water solution filled in the corrugated pipe is increased, the extension pipe and the supporting pipe are cooled rapidly by utilizing the large specific heat capacity of the water solution, the cooling rate of the rubber strips is accelerated, meanwhile, the water solution is utilized to absorb the heat of the rubber strips, compared with the method that the heat is dissipated into the air, the heat can be effectively recycled, and the environment-friendly concept of energy conservation.

Drawings

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

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is a partial cross-sectional view of the cutting ring;

in the figure: the device comprises a bottom plate 1, a charging barrel 2, a support frame 11, a mounting groove 12, a hopper 21, a power box 22, a motor 23, a screw rod 24, an extrusion plate 25, a support pipe 26, an extension pipe 3, a transmission rod 31, a driven wheel 32, a driving wheel 33, a thread groove 34, a connecting ring 35, a first groove 36, meshing teeth 37, a limiting ring 4, a fixing bolt 41, an extrusion block 42, a second groove 43, a cutting ring 5, a cutting groove 51, a cutter 52, a first through groove 53, a push rod 54, a through hole 55, a scraping plate 56, an expansion bag 57, an extrusion bag 58, a positioning plate 6, a moving plate 61, a corrugated pipe 62, a water inlet pipe 63 and a.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, a rubber preforming device according to the present invention includes a base plate 1, a barrel 2, and a cutting ring 5; a support frame 11 is fixedly connected above the bottom plate 1; the support frame 11 is designed in a circular arc shape at one side far away from the bottom plate 1; the side of the support frame 11, which is far away from the bottom plate 1, is fixedly connected with a charging barrel 2; the cylindrical cavity type structure body of the charging barrel 2; a hopper 21 is fixedly connected to one side of the charging barrel 2, which is far away from the support frame 11; the hopper 21 is communicated with the inner cavity of the charging barrel 2; one end of the charging barrel 2 close to the hopper 21 is fixedly connected with a power box 22; the power box 22 is of a disc-shaped design; one side of the power box 22, which is far away from the charging barrel 2, is fixedly connected with a motor 23 through a bolt; the output shaft of the motor 23 extends into the power box 22; the output shaft of the motor 23 is positioned in the power box 22 and fixedly connected with a screw 24; the screw 24 penetrates through the power box 22 and extends into the inner cavity of the charging barrel 2; the screw 24 is positioned in the power box 22 and is internally engaged with an extrusion plate 25; the extrusion plate 25 is connected with the inner cavity of the charging barrel 2 in a sliding way; the end of the charging barrel 2 far away from the power box 22 is designed to be conical; the end of the charging barrel 2 far away from the power box 22 is open; a supporting tube 26 is fixedly connected to the opening of the charging barrel 2; the outer side of the supporting pipe 26 is sleeved with an extension pipe 3 in a sliding manner; the extension tube 3 is elastically connected with the charging barrel 2 through a spring; the support frame 11 is provided with a mounting groove 12 corresponding to the power box 22; a transmission rod 31 is rotatably connected in the mounting groove 12 through a bearing; the transmission rods 31 are symmetrically arranged on two sides of the charging barrel 2; the transmission rod 31 extends into the power box 22; one end of the transmission rod 31, which is positioned in the power box 22, is sleeved with a driven wheel 32; the output shaft of the motor 23 is positioned in the power box 22 and is internally connected with a driving wheel 33; the driving wheel 33 is meshed with the driven wheel 32; the surface of one end of the transmission rod 31, which is far away from the power box 22, is provided with a thread groove 34; one end of the extension pipe 3, far away from the charging barrel 2, is fixedly connected with a symmetrically designed connecting ring 35 through a guide rod; the connecting ring 35 is connected with the transmission rod 31 in a sliding manner; a first groove 36 is formed in the inner wall of the connecting ring 35; the first groove 36 is internally and slidably connected with a meshing tooth 37; the first groove 36 and the meshing teeth 37 are both in T-shaped design; the meshing tooth 37 and one end of the first groove 36 far away from the transmission rod 31 are elastically connected through a spring; in the initial state, the meshing teeth 37 extend into the thread groove 34 on the transmission rod 31 under the action of the spring; one side of the transmission rod 31, which is far away from the extension pipe 3, is connected with a limiting ring 4 in a sliding manner; the limiting ring 4 is in threaded connection with a fixing bolt 41; the side of the limiting ring 4 facing the connecting ring 35 is fixedly connected with symmetrically designed extrusion blocks 42; the side, far away from the axis of the limit ring 4, of the extrusion block 42 is designed into an even inclined surface; the connecting ring 35 is provided with a second groove 43 corresponding to the limiting ring 4; the second groove 43 is communicated with the first groove 36; the pressing block 42 is used for pressing the meshing teeth 37 to enable the meshing teeth 37 to be disengaged from the thread grooves 34; a cutting ring 5 is fixedly connected to one side of the extension pipe 3, which is far away from the charging barrel 2, and is used for cutting the extruded rubber strip;

in the prior art, when performing preforming on rubber, a hydraulic device is usually used to extrude the rubber in a high temperature state into strips, and the strips are cut into a specified size by a cutter 52, so as to facilitate subsequent vulcanization molding, but because the temperature of the rubber is high during extrusion and the rubber has soft texture, the rubber is easy to adhere to the cutter 52 during cutting, and because of the soft texture, a certain deformation of a cut surface can be caused during cutting, so that a certain difference exists in the weight of a cut rubber block, during operation, heated rubber is introduced into an inner cavity of a charging barrel 2 on a support frame 11 through the charging barrel 2, a motor 23 is started, an output shaft of the motor 23 rotates to drive a screw 24 to rotate, so that an extrusion plate 25 engaged with the screw 24 slides in the charging barrel 2, and extrudes the rubber in the charging barrel 2 during sliding, the rubber is moved to the open end of the charging barrel 2 and extruded to the outside through the open end of the charging barrel 2 to form a rubber strip, the output shaft of the motor 23 drives the driving wheel 33 to rotate when rotating, and then the driving rod 31 rotates at a constant speed through the transmission of the driven wheel 32, the connecting ring 35 at the end of the driving rod 31 which rotates at the constant speed and is far away from the motor 23 drives the extension pipe 3 to slide on the supporting pipe 26 through the meshing of the meshing teeth 37 and the thread groove 34, the rubber strip is extruded to the outside through the supporting pipe 26, and because the rubber strip has the same moving speed with the extension pipe 3 and the diameter of the extension pipe 3 is larger than that of the supporting pipe 26, the softer rubber strip falls into the extension pipe 3 and gradually contacts with the supporting pipe 26 and the extension pipe 3, the temperature contained in the rubber strip is emitted to the outside, and the surface texture of the rubber strip is gradually hardened along with, when the extension pipe 3 moves to the position of the limit ring 4, the extrusion block 42 on the limit ring 4 extends into the second groove 43, moves towards the first groove 36 along the second groove 43, and utilizes the inclined edge to extrude the meshing teeth 37 in the first groove 36, so that the meshing teeth 37 extrude the spring towards the depth of the first groove 36, the connecting ring 35 is disengaged from the thread groove 34, so that the extension pipe 3 loses the limit of the connecting ring 35, at the moment, the extension pipe 3 is quickly reset under the action of the spring, so that the hardened rubber strip and the extension pipe 3 generate displacement, the rubber strip is conveniently cut by the cutting ring 5, the extension pipe 3, the supporting pipe 26 and the transmission rod 31 are arranged, the transmission rod 31 is driven to rotate by the rotation of the motor 23, and the extension pipe 3 is driven to perform uniform motion by the engagement between the connecting ring 35 and the thread groove 34 on the transmission rod 31, and then make the rubber strip of extruding carry out the heat dissipation of a period of time under the supporting role of stay tube 26 and extension pipe 3, and then make the rubber strip carry out preliminary sclerosis, be convenient for cut ring 5 cuts, the rubber strip because with extension pipe 3 between synchronous motion, can also avoid rubber strip deformation to block up extension pipe 3 effectively, spacing ring 4 uses fixing bolt 41 can freely move on transfer line 31 simultaneously, and then carry out the accuse to the migration distance of extension pipe 3, can control cutting length effectively, the quality of accuse rubber strip, and then effectual accurate cutting that makes the rubber strip is more convenient and swift.

As an embodiment of the present invention, the cutting ring 5 has a cutting groove 51 formed on the inner annular wall; a cutter 52 is rotationally connected in the cutting groove 51; a first through groove 53 is formed in one side, close to the supporting tube 26, of the cutting ring 5; the first through groove 53 is in a cross-shaped design; a push rod 54 is elastically connected in the first through groove 53 through a spring; the cutter 52 is rotationally connected with the push rod 54; the connection part of the push rod 54 and the cutter 52 is in threaded engagement; when the rubber strip cutting device works, most of cutting knives in the prior art need to be driven by a cutting motor, rubber strips are cut through high-speed rotation, a protective cover needs to be configured on a cutter 52 rotating at high speed, certain potential safety hazards exist during operation, the rubber strip cutting device is troublesome to use, through the arrangement of the cutting ring 5 and the cutting groove 51, when the meshing teeth 37 are disengaged between the connecting ring 35 and the transmission rod 31 under the action of the extrusion block 42, the extension pipe 3 is quickly reset under the action of a spring, the push rod 54 is contacted with the charging barrel 2 in the resetting process of the extension pipe 3, the push rod 54 slides towards the inside of the first through groove 53, as the push rod 54 is in threaded connection with the cutter 52, the push rod 54 extrudes towards the deep part of the first through groove 53, the cutter 52 rotates in the cutting groove 51, and the cutter 52 cuts the rubber strips, meanwhile, as the cutting ring 5 is fixedly connected on the extension pipe 3, the reset extension pipe 3 is, under the action of the spring, the meshing teeth 37 are meshed with the thread grooves 34 on the transmission rod 31 again, so that the extension pipe 3 and the moving rubber strip are relatively static, and the rubber strip is effectively prevented from being limited by the cutter 52 in the resetting process after the rubber strip is cut.

As an embodiment of the present invention, the first through groove 53 and the push rod 54 are symmetrically designed; the number of the cutters 52 is two, and the cutters are designed in an up-and-down symmetrical mode; the cutters 52 are all in a semicircular design; the two cutters 52 are provided with a through hole 55 together; the diameter of the through hole 55 is larger than the diameter of the inner cavity of the support tube 26; the during operation, through setting up the cutter 52 of symmetrical design, when cutting, through the mutual dislocation shearing of two cutters 52, and then the effectual cutter 52 that makes is better to the cutting effect of rubber strip, and the setting for of semi-circular conducting hole 55 utilizes arc cutter 52 blade point and rubber strip appearance comparatively to accord with on the one hand simultaneously, makes the cutting more convenient, still can not form the hindrance effect to the reseing of extension pipe 3 simultaneously.

As an embodiment of the present invention, two sides of the cutting groove 51 are fixedly connected with scrapers 56; the scraper 56 is made of an elastic metal sheet material; the scraper 56 is elastically connected with one end of the cutting groove 51 far away from the hinged point through a spring; an expansion bag 57 is fixedly connected to one side of the scraper 56 close to the inner wall of the cutting groove 51; the first through groove 53 and one side of the push rod 54 far away from the cutting groove 51 are fixedly connected with a squeezing bag 58; the pressing bag 58 and the expansion bag 57 are designed to be communicated; when the rubber strip cutting machine works, when the push rod 54 moves towards the inside of the first through groove 53, the shape of the extrusion bag 58 is enlarged, negative pressure is formed in the extrusion bag 58, the expansion bag 57 is contracted, the scraper 56 is tightly attached to the side wall of the cutting groove 51, the cutting of the cutter 52 by the baffle cannot be hindered, when the push rod 54 rebounds and resets, the internal gas is input into the expansion bag 57 again by the extrusion bag 58, the expansion bag 57 drives the scraper 56 to be in contact with the cutter 52, the cutter 52 is effectively scratched, the rubber adhered to the cutter 52 is convenient to clean, and the problem that the rubber adhered to the cutter 52 is too much in the long-time working process and the cutter 52 cannot effectively cut the rubber strip is effectively avoided.

As an embodiment of the invention, a positioning plate 6 is fixedly connected to one side of the charging barrel 2 close to the supporting tube 26; the extension pipe 3 is fixedly connected with a moving plate 61; a corrugated pipe 62 is fixedly connected between the moving plate 61 and the positioning plate 6; the bellows 62 is of annular design; the upper part of the corrugated pipe 62 is communicated with an external water source through a conduit; during operation, extension pipe 3 moves to one side of keeping away from feed cylinder 2 at the uniform velocity under the effect of go-between 35, and then make movable plate 61 move along with, the distance grow between movable plate 61 and locating plate 6 leads to the bellows 62 between movable plate 61 and the locating plate 6 to expand gradually, and then make the cavity grow in the bellows 62 form certain negative pressure, the negative pressure will extract external water source through the pipe, and then make the aqueous solution content of filling increase in the bellows 62, and utilize the great specific heat capacity of aqueous solution to cool down extension pipe 3 and stay tube 26 fast, and then accelerate the refrigerated rate of rubber strip, utilize the heat of aqueous solution absorption rubber strip simultaneously, compare in making the heat give off to the air in, can recycle the heat effectively, comparatively accord with energy saving and emission reduction's environmental protection theory.

As an embodiment of the present invention, the bellows 62 is fixedly connected with a water inlet pipe 63 and a water outlet pipe 64; the water inlet pipe 63 and the water outlet pipe 64 are only one-way guide pipes; the water inlet pipe 63 is close to the positioning plate 6, and the water outlet pipe 64 is close to the moving plate 61, so that the water flow in the corrugated pipe 62 can flow directionally; the during operation, through setting up inlet tube 63 and outlet pipe 64, extract rivers when bellows 62 is stretched to pass through outlet pipe 64 with rivers and discharge when bellows 62 resets, draw water, the drainage in comparing in single pipe, can change the rivers in the bellows 62 in a circulation effectively, and then effectual messenger's rivers temperature is closer with external water source temperature, and the rubber strip of being convenient for dispels the heat.

The specific working process is as follows:

when the rubber extruding device works, heated rubber is introduced into the inner cavity of the material cylinder 2 on the support frame 11 through the material cylinder 2, the motor 23 is started, the output shaft of the motor 23 rotates to drive the screw rod 24 to rotate, so that the extruding plate 25 meshed with the screw rod 24 slides in the material cylinder 2, and extrudes the rubber in the material cylinder 2 in the sliding process, so that the rubber moves towards the opening end of the material cylinder 2 and is extruded to the outside through the opening end of the material cylinder 2 to form a rubber strip, the output shaft of the motor 23 drives the driving wheel 33 to rotate when rotating, so that the driving rod 31 rotates at a constant speed through the transmission of the driven wheel 32, the connecting ring 35 at one end of the driving rod 31 far away from the motor 23 drives the extension pipe 3 to slide on the support pipe 26 through the meshing of the meshing teeth 37 and the thread groove 34, the rubber strip is extruded to the outside through the support, and the diameter of the extension pipe 3 is larger than that of the support pipe 26, the rubber strip with softer texture falls into the extension pipe 3, and gradually dissipates the temperature contained inside to the outside through the contact with the support pipe 26 and the extension pipe 3, the rubber strip is continuously cooled in the support pipe 26 and the extension pipe 3, and further the surface texture of the rubber strip is gradually hardened, when the extension pipe 3 moves to the position of the limit ring 4, the extrusion block 42 on the limit ring 4 extends into the second groove 43 and moves towards the first groove 36 along the second groove 43, and the bevel edge extrudes the engagement teeth 37 in the first groove 36, so that the engagement teeth 37 extrude the spring to the depth of the first groove 36, the connection ring 35 is disengaged from the thread groove 34, and further the extension pipe 3 loses the limit of the connection ring 35, at this time, the extension pipe 3 is quickly reset under the acting force of the spring, and further the hardened rubber strip is displaced from the extension pipe 3, extension pipe 3 resets fast under the spring action, and in-process push rod 54 and feed cylinder 2 contact that resets at extension pipe 3, and then make push rod 54 slide to first logical groove 53 inside, because push rod 54 is connected with cutter 52 thread type, push rod 54 extrudees to first logical groove 53 depths, and then makes cutter 52 at the internal rotation of cutting groove 51, and then makes cutter 52 cut the rubber strip.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.