CN107471583B

CN107471583B - Steel-edged rubber water stop composite machine head device

Info

Publication number: CN107471583B
Application number: CN201710829565.4A
Authority: CN
Inventors: 林叔波; 张城恺; 徐荣国
Original assignee: Zhejiang Baina Rubber Equipment Co ltd
Current assignee: ZHEJIANG BAINA RUBBER EQUIPMENT Co.,Ltd.
Priority date: 2017-09-15
Filing date: 2017-09-15
Publication date: 2021-02-19
Anticipated expiration: 2037-09-15
Also published as: CN107471583A

Abstract

The invention discloses a steel-edged rubber water stop composite machine head device, which comprises an upper cover plate, a lower cover plate, a runner body and a composite die, wherein the upper cover plate is fixedly connected with the lower cover plate; the runner body is arranged between the upper cover plate and the lower cover plate; the upper surface and the lower surface of the runner body are provided with sunken sizing material runners, and a flow distribution structure is arranged in the sizing material runners; the flow dividing structure comprises a structure which is gradually increased from a sizing material inlet of the sizing material flow passage to the advancing direction of the sizing material in the horizontal and vertical directions and a material dividing groove which is horizontally and transversely distributed. Aiming at the defects in the prior art, the flow channel structure is improved. Through the gradually-increased rubber material flow channel and the material distributing grooves which are horizontally and transversely distributed, the rubber material is gradually spread and distributed and combed from the rubber material inlet to the advancing direction, the rubber material is more uniformly distributed, the stress is more uniform and reasonable when the rubber is compounded with the steel belt, and the rubber is compounded with the steel belt more firmly.

Description

Steel-edged rubber water stop composite machine head device

Technical Field

The invention relates to a rubber molding extruder head device, in particular to an extruder head device of a steel-edged rubber water stop.

Background

The steel-edged rubber water stop is an important part for concrete construction of underground facilities, tunnel culverts, retaining dams and liquid storage structures, and is arranged in construction joints and deformation joints during concrete cast-in-place, and is a foundation engineering integrated with a concrete structure. The section of the steel-edged rubber water stop adopts a non-uniform-thickness structure, and is divided into a strong area and a waterproof area, so that all parts are uniformly and reasonably stressed, the outer wall of the telescopic hole is a plane, the contact area of the template clamp is large during construction, the steel-edged rubber water stop is not easy to dislocate, and two sides of the steel-edged rubber water stop extend to form a half-covered steel edge.

The Chinese patent with the applicant's publication number of CN 101502996B discloses a composite machine head device for a steel-edged rubber water stop, which comprises a channel body, an upper cover plate and a lower cover plate, wherein a through hole of the lower cover plate is connected into a channel by a connecting piece, a steering tube and an extruder, the channel body is provided with grooves on the upper surface and the lower surface and is communicated with the channel body, a shunting body at the shunting position of the upper channel and the lower channel is formed between the upper side and the upper cover plate and between the lower side and the lower cover plate, the shunting body is an upper conical convex surface and a lower conical convex surface, two sides of the channel body are respectively provided with a longitudinally through steel belt channel, the front end of the channel body is fastened with a wedge-shaped tongue plate, the front ends of the upper cover plate and the lower. The invention can realize the automatic and continuous production of the steel-edged rubber waterstop by the extrusion process, greatly improve the work efficiency and provide technical support for the assembly line operation of the subsequent vulcanization process. However, the prior art has the following disadvantages:

1) the rubber and the steel edge are not firmly compounded, so that the separation can be caused;

2) one machine head can only aim at one product, and the universality cannot be realized;

3) the steel belt and the extrusion speed cannot be effectively synchronized;

4) the machine head structure is inclined, the installation requirement on equipment is high, and the steel belt is easy to bend and deform when being extruded.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.

The invention also aims to provide a steel-edged rubber water stop composite machine head device, which is used for redesigning and changing a runner structure and an angle of a steel belt and rubber during compounding so as to enable the rubber and the steel belt to be compounded more firmly aiming at the defects in the prior art. In addition, the steel belt guide mechanism is redesigned and improved, so that different products can be extruded by one machine head by replacing the die and adjusting the guide. And a high-precision traction device is additionally designed, so that the extrusion speed of the extruder is synchronous. The machine head structure is redesigned and changed, the original inclined type is changed into a horizontally butted straight body type, the installation requirement of equipment is reduced, the bending deformation of the steel belt during extrusion is reduced, and the extrusion is more stable.

In order to solve the technical problem, the invention provides a steel-edged rubber water stop composite machine head device, which comprises an upper cover plate, a lower cover plate, a runner body and a composite die; the runner body is arranged between the upper cover plate and the lower cover plate; the upper surface and the lower surface of the runner body are provided with sunken sizing material runners, and a flow dividing structure is arranged in the sizing material runners; the flow dividing structure comprises a structure which gradually increases from a sizing material inlet of the sizing material flow channel to the advancing direction of the sizing material in the horizontal and vertical directions and a material dividing groove which is horizontally and transversely distributed. Aiming at the defects in the prior art, the flow channel structure is redesigned and changed. Through being the sizing material runner structure that increases gradually and being horizontal transverse distribution's branch silo, make the sizing material expand the distribution gradually to the direction of advance from the sizing material entrance to comb through dividing the silo and neatly, make the sizing material more even in the sizing material runner transverse distribution, thereby the atress when making rubber and steel band compound is more even reasonable, and is more firm with the complex of steel band.

In order to increase the effective distribution of the sizing material to two sides of a sizing material flow passage which is far away and enable the sizing material to be distributed more uniformly, the material distributing groove preferably comprises bypass flow passages which are directly communicated with the sizing material inlet at two sides of the sizing material flow passage. Specifically, the inlet of the bypass flow channel is in a bell mouth structure and gradually reduces towards the advancing direction of the sizing material. The rubber material can more easily enter the bypass flow channel and gradually and uniformly distributed to advance through the gradually reduced bypass flow channel of the bell mouth structure.

In order to improve the uniform distribution of the sizing material in the sizing material flow passage, specifically, comb blocks protruding towards the upper cover plate or the lower cover plate are arranged in the sizing material flow passage, and a plurality of distributing grooves are uniformly distributed on the comb blocks. The raised comb block is arranged in the middle of the rubber material flow channel, a bypass flow channel is formed by the raised comb block and two side walls of the rubber material flow channel, and part of the material distributing groove is arranged on the comb block, so that the material distributing groove on the comb block is slightly higher than the bypass flow channels on the two sides. On one hand, the comb block structure increases the resistance to the middle sizing material with higher flow speed to average the flow speed of the sizing materials at two sides, so that the flow speed of the sizing materials in the whole sizing material flow channel is more consistent, and the consistency of the flow pressure of the sizing materials is improved; on the other hand, the glue flowing through the middle is evenly distributed in the transverse direction. All the rubber materials are distributed more uniformly in the rubber material flow channel, the rubber and the steel belt are compounded to generate a positive effect due to the better flow speed consistency, and the rubber and the steel belt are compounded more firmly.

Similarly, in order to enable the glue to be evenly combed and distributed in front of the glue runner and then form a stable flat glue strip behind the glue runner, a tail slope structure which is transited to the glue runner is arranged at the front end of the combing block.

In order to solve the technical problem, the invention also adopts a steel-edged rubber water stop composite machine head device, which comprises an upper cover plate, a lower cover plate, a runner body and a composite die; the upper cover plate, the runner body and the lower cover plate are of a three-layer laminated structure; and the upper surface and the lower surface of the runner body are provided with sunken sizing material runners, and sizing material inlets of the sizing material runners are horizontally butted with a sizing material extruder. This technical scheme makes things convenient for the dismouting, has made things convenient for shunt mechanism's repairment. The traction device can be conveniently moved away by moving the upper cover plate, so that the convenience of replacing the compound die is ensured; the movement of the lower cover plate is used for transversely moving the whole machine, so that the convenience of replacing another machine head is ensured. The horizontal butt joint of the machine head and the extruder reduces the installation requirement of equipment and reduces the bending deformation of the steel strip during extrusion.

In order to improve the composite strength of rubber and a steel belt and increase the flexibility of replacing a mold, the composite mold preferably comprises a tongue plate, a transition cover plate, a mold and a mold cover plate; a tongue part protruding in a wedge shape is arranged in the middle of the front end of the tongue plate, and a movable lip plate is arranged in the middle of an opening of the tongue part; and lips communicated with the steel belt channel are arranged on two sides of the lip plate.

The cover plate water channel structure is added on the two upper and lower cover plates, and the middle water channel is arranged on the two sides of the channel body. The temperature of the machine head is ensured to be constant by the water circulation heating and cooling of the specific temperature control system.

Preferably, the tongue part of the tongue plate is wedge-shaped, and the compound angle is 40-90 degrees. The angle increases the downward extrusion force of the rubber material, and improves the composite strength of the rubber and the steel belt.

In order to improve the composite strength of rubber and a steel belt and reduce the deformation of the water stop belt during compounding, the steel belt of the steel-edge rubber water stop belt is led in from the steel-edge channel inlets at two side parts of the runner body after crossing an extruder, and a traction device for drawing the steel belt is arranged in front of the compound die.

In order to further solve the problem that the steel strip deviates left and right in the advancing process, preferably, guide tools are arranged on two sides of a die opening of the compound die. The guide tool is provided with two groups of guide wheels and adopts a bearing structure, so that the rotation flexibility is ensured, and the advancing resistance of the steel belt is reduced.

Aiming at the defects in the prior art, the technical scheme of the invention redesigns and changes the runner structure and the angle of the steel belt and the rubber during compounding, so that the rubber and the steel belt are compounded more firmly. In addition, the steel belt guide mechanism is redesigned and improved, so that different products can be extruded by one machine head by replacing the die and adjusting the guide. And a high-precision traction device is additionally designed, so that the extrusion speed of the extruder is synchronous. The machine head structure is redesigned and changed, the original inclined type is changed into a horizontally butted straight body type, the installation requirement of equipment is reduced, the bending deformation of the steel belt during extrusion is reduced, and the extrusion is more stable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a machine head in the invention, which shows a steel belt entering a runner body from steel belt channels at two sides of the runner body through a guide tool;

FIG. 3 is an exploded view of the head of the present invention;

FIG. 4 is a schematic structural diagram of a flow channel body according to the present invention;

FIG. 5 is a schematic structural view of the horizontal butt joint of the head and the extruder through the transition sleeve.

Fig. 6 is a schematic structural view of the oral tongue plate of the present invention.

Wherein: the device comprises a base 1, a machine head 2, a flow channel body 21, a sizing material flow channel 211, a comb block 212, a material distributing groove 213, a bypass flow channel 214, a tail slope 215, a sizing material inlet 216, a middle water channel 217, a steel belt channel 218, an upper cover plate 22, a cover plate water channel 221, a lower cover plate 23, a compound die 24, a mouth tongue plate 241, a tongue 2411, a lip 242, a lip 243, a transition cover plate 244, a compound cavity 245, a die 246, a die cover plate 247, a guiding tool 25, a traction device 3, a traction wheel mechanism 31, a traction wheel 32, a transmission mechanism 33, a transition sleeve 41 and a steel belt 5.

Detailed Description

The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:

referring to fig. 1, a composite machine head device of a steel-edged rubber water stop comprises a base 1, a machine head 2 arranged on the base 1 and a traction device 3. Referring to fig. 2 and 3, the head 2 includes an upper cover plate 22, a runner body 21, a lower cover plate 23, and a composite mold 24. The upper cover plate 22, the runner body 21 and the lower cover plate 23 are stacked in three layers, and the compound die 24 is arranged at the front end of the assembly of the upper cover plate 22, the runner body 21 and the lower cover plate 23. Referring to fig. 4 and 5, concave structures are provided on the upper and lower surfaces of the flow channel body 21, and form a glue flow channel 211 with the upper cover plate 22 and the lower cover plate 23, respectively. Steel belt passages 218 penetrating the runner body 21 are provided on both sides of the rubber material runner 211 of the runner body 21. The upper cover plate 22 and the lower cover plate 23 are respectively provided with a cover plate water channel 221 structure, and two sides of the channel body 21 are provided with a middle water channel 217 structure. The temperature of the machine head 2 is ensured to be constant by water circulation heating and cooling. The sizing extruder (not shown) is horizontally interfaced with the sizing inlet 216 of head 2 via an extrusion transition sleeve 41. The section of the waterstop strip 5 is fed from an unwinding device (not shown) located at the rear of the extruder and then across the extruder into the strip channel 218 of the runner body 21 of the head 2. The rubber material is extruded by the rubber extruder and enters from the rubber material inlet 216 of the runner body 21 of the machine head 2 through the extrusion transition sleeve 41, and the rubber material entering the machine head 2 is divided into an upper part and a lower part which are respectively pushed from the upper rubber material runner 211 and the lower rubber material runner 211 of the runner body 21. The steel belt 5 and the sizing material are simultaneously extruded and compounded in the compound die 24, and are molded and extruded in a specific shape.

A flow dividing structure is provided in the glue flow channel 211 of the flow channel body 21. The flow dividing structure comprises a bottleneck-shaped gradually-enlarged structure from the sizing material inlet 216 to the advancing direction and a material dividing groove 213 structure horizontally and transversely distributed in the sizing material flow channel 211. A raised comb block 212 is arranged in the middle of the sizing material flow channel 211 close to the sizing material inlet 216. The distributing channel 213 is arranged on the comb block 212 in the transverse direction, and a bypass channel 214 is formed between both sides of the comb block 212 and the glue channel 211. The bypass flow channel 214 is directly communicated with the sizing material inlet 216 and is provided with a bell mouth structure which is gradually reduced towards the sizing material advancing direction at the end close to the sizing material inlet 216. The trough bottom of the distributing trough 213 on the comb block 212 is higher than the bottom surface of the sizing material runner 211, and the front end of the comb block 212 is provided with a tail slope 215. The structure of the gradually enlarged glue flow channel 211 and the horizontally and transversely distributed material distributing channel 213 enable the glue to be gradually spread and distributed to two sides when the glue advances forwards from the glue inlet 216. The comb block 212 structure increases the resistance to the middle sizing material with a higher convection speed on one hand, and the bell-mouth structure and the gradually reduced bypass flow channel 214 can improve the passing performance of the sizing material, so that the transverse flow speed of the sizing material is averaged, the flow speed of the sizing material in the whole sizing material flow channel 211 is more consistent, and the consistency of the flow pressure of the sizing material is improved; on the other hand, the sizing material flowing through the middle is prevented from being accumulated in the middle and is uniformly distributed in the transverse direction by combing through the distributing groove 213. And the rubber material combed and finished by the material distributing groove 213 is evenly spread by the tail slope 215 to form a stable flat rubber material belt, so that the rubber material belt is more firmly compounded with the steel belt 5. All the rubber materials are distributed more uniformly in the rubber material flow channel 211, and the rubber material and the steel belt 5 are compounded to generate positive effects due to better flow rate consistency.

The composite mold 24 includes a tab 241, a transition cover plate 244, a mold 246, and a mold cover plate 247. The tongue plate 241 is connected to the front end of the flow path body 211. Referring to fig. 6, the tongue plate 241 has a tongue 2411 protruding from the bottom of the upper and lower glue material flow channels 211 to the middle in a wedge shape, and a movably connected lip 242 is provided in the middle of the front opening of the tongue. The lip 242 has lips 243 on both sides thereof that communicate with the tongue 2411 opening and the steel belt passage 218. The transition cover plate 244 is connected to the front ends of the upper cover plate 22 and the lower cover plate 23, and is provided with a composite cavity 245 which is matched with the tongue 2411 and the lip 242 in a clearance way. The tongue 2411 of the mouth tongue plate 241 has a wedge-shaped compound angle of 40 to 90 degrees. The openings of the steel belt channel 218 are arranged on two sides of the mouth tongue plate 241, and the openings corresponding to the mouth tongue plate and the mouth tongue plate are also arranged on two sides of the composite cavity 245 of the transition cover plate 244. The rubber compound extruded from the rubber compound flow path 211 passes through a gap between the lip 242 and the compounding chamber 245 to be compounded with the steel strip 5 synchronously discharged from the steel strip passage 218. The mold 246 and the mold cover 247 are sequentially disposed on the transition cover 244, and the mold 246 is opened with an opening corresponding to the cross-sectional shape of the desired product. The steel belt 5 and the rubber compound are compounded through the tongue plate 241 and the transition cover plate 244 and then output through the opening on the die 246. In this embodiment, the lip 242 is movably disposed on the opening of the tongue 2411 of the tongue board 241, and the width of the opening of the steel belt channel 218 can be changed by replacing the lip 242, so that the adaptability of different steel belt widths for different products is improved.

And guide tools 25 are arranged at the two side ends of the die cover plate 247 and used for limiting and guiding the running of the steel strip 5. Guide tools 25 are also arranged on both sides of the machine head 2 at the connection with the transition sleeve 41 and used for guiding the steel strip 5 to enter from the steel strip channel 218. A traction device 3 is arranged in front of the machine head 2. The traction device 3 comprises two groups of traction wheel mechanisms 31 and transmission mechanisms 33 which are arranged in tandem. The traction wheel mechanism 31 includes traction wheels which are vertically rolled corresponding to the steel belts on both sides. The traction wheel mechanism 31 is adjustable up and down. The traction wheel 32 is provided with a grain structure, so that traction friction is ensured. The transmission mechanism 33 is a variable frequency drive mechanism. The speed of the traction wheel mechanism 31 is kept synchronous with the extrusion speed of the extruder by a transmission mechanism 33.

This aircraft nose technical scheme of three-layer laminated structure for make things convenient for the dismouting more, made things convenient for shunt mechanism's repairment. The movement of the upper cover plate 22 can facilitate the removal of the traction device, and ensure the convenience of replacing the compound die 24; the movement of the lower cover plate 23 is used to move the entire apparatus laterally, ensuring the convenience of replacing another head. The horizontal butt joint of the machine head and the extruder reduces the installation requirement of equipment and reduces the bending deformation of the steel strip during extrusion.

The present invention will be more clearly understood from the detailed description of the invention, which is not to be taken as a limitation on the scope of the invention, and various changes may be made therein without departing from the spirit of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the claims.

Claims

1. A steel-edged rubber waterstop composite machine head device comprises an upper cover plate, a lower cover plate, a runner body and a composite die; the runner body is arranged between the upper cover plate and the lower cover plate, and the compound die is arranged at the front end of the upper cover plate, the runner body and the lower cover plate assembly; the method is characterized in that: the upper surface and the lower surface of the runner body are provided with sunken sizing material runners, and a flow dividing structure is arranged in the sizing material runners; the flow dividing structure comprises a structure which gradually increases from a sizing material inlet of the sizing material flow channel to the advancing direction of the sizing material in the horizontal and vertical directions and a material dividing groove which is horizontally and transversely distributed; the material distributing groove comprises bypass flow channels which are directly communicated with the sizing material inlet on two sides of the sizing material flow channel; the inlet of the bypass flow channel is of a bell mouth structure and gradually reduces towards the advancing direction of the sizing material; comb blocks protruding towards the upper cover plate or the lower cover plate are arranged in the sizing material flow channel, and a plurality of distributing grooves are uniformly distributed on the comb blocks; and a tail slope structure which is transited to the glue material flow channel is arranged at the front end of the comb block.

2. A steel-edged rubber waterstop composite machine head device comprises an upper cover plate, a lower cover plate, a runner body and a composite die; the method is characterized in that: the upper cover plate, the runner body and the lower cover plate are of a three-layer laminated structure; a concave sizing material runner is arranged on the upper surface and the lower surface of the runner body, and a sizing material inlet of the sizing material runner is horizontally butted with a sizing material extruder; steel belt channels penetrating through the flow channel body are arranged on two sides of the sizing material flow channel; a flow dividing structure is arranged in the sizing material flow channel; the flow dividing structure comprises a structure which gradually increases from a sizing material inlet of the sizing material flow channel to the advancing direction of the sizing material in the horizontal and vertical directions and a material dividing groove which is horizontally and transversely distributed; the material distributing groove comprises bypass flow channels which are directly communicated with the sizing material inlet on two sides of the sizing material flow channel; the inlet of the bypass flow channel is of a bell mouth structure and gradually reduces towards the advancing direction of the sizing material; comb blocks protruding towards the upper cover plate or the lower cover plate are arranged in the sizing material flow channel, and a plurality of distributing grooves are uniformly distributed on the comb blocks; and a tail slope structure which is transited to the glue material flow channel is arranged at the front end of the comb block.

3. The compound handpiece apparatus of claim 2, wherein: the compound die comprises a tongue plate, a transition cover plate, a die and a die cover plate; a tongue part protruding in a wedge shape is arranged in the middle of the front end of the tongue plate, and a movable lip plate is arranged in the middle of an opening of the tongue part; and lips communicated with the steel belt channel are arranged on two sides of the lip plate.

4. The composite handpiece device of claim 3, wherein the tongue portion of the tongue plate is wedge-shaped with a composite angle of 40 to 90 degrees.

5. Composite head device according to claim 2 or 3 or 4, characterized in that: the steel strip of the steel-edge rubber water stop passes through the extruder and then is led in from the steel-edge channel inlets at the two side parts of the runner body, and a traction device for drawing the steel strip is arranged in front of the compound die.

6. The compound handpiece apparatus of claim 5, wherein: and guide tools are arranged on the outer sides of the steel belt inlet and the steel belt outlet of the machine head.