CN109501201B

CN109501201B - Composite extruder head

Info

Publication number: CN109501201B
Application number: CN201811473994.3A
Authority: CN
Inventors: 薄夫修; 刘永禄; 刘树明; 王建法; 陈亮
Original assignee: Mesnac Co Ltd
Current assignee: Mesnac Co Ltd
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2024-05-24
Anticipated expiration: 2038-12-04
Also published as: CN109501201A

Abstract

The invention provides a composite extrusion head, comprising: a body; the die body is pivotally arranged on the machine body and provided with an open position far away from the machine body and a closed position close to the machine body along the rotation direction; the locking structure is movably arranged on the machine body, and is provided with a locking position close to the machine body and an unlocking position far away from the machine body along the moving direction of the locking structure, and the locking structure is provided with a locking space; when the die body rotates to the closed position, the locking structure moves to the locking position, the machine body and the die body are both positioned in the locking space, and the locking structure is attached to the machine body and the die body surface, so that the die body is locked at the closed position. The invention solves the problem that the locking structure of the composite extruder head in the prior art can not realize the stable locking of the die body, so that the composite extruder head has the risk of easy leakage of sizing materials in the use process.

Description

Composite extruder head

Technical Field

The invention relates to the technical field of rubber production, in particular to a composite extrusion machine head.

Background

The composite extruder head generally comprises a body and a die body pivotably arranged on the body, and the die body has a closed position close to the body and an open position away from the body in a rotational direction thereof, and a locking structure is provided for locking the die body in the closed position to prevent the die body from rotating relative to the body.

However, the locking structure in the prior art is usually a frame locking door, and the locking of the die body in the upper direction and the lower direction is realized by driving the frame locking door to swing and open through a locking oil cylinder. In the use process of the composite extrusion machine head, the relative position between the locking structure and the machine body is not limited, so that the locking structure shakes relative to the machine body, the locking stability of the locking structure to the die body is insufficient, namely the die body can still rotate at a small angle relative to the machine body, and therefore, the risk that sizing materials are easy to leak in the use process of the composite extrusion machine head is caused, and the production of rubber products is affected.

Disclosure of Invention

The invention mainly aims to provide a composite extrusion machine head, which solves the problem that the locking structure of the composite extrusion machine head in the prior art cannot realize stable locking of a die body, so that the composite extrusion machine head has the risk of easy leakage of sizing materials in the use process.

In order to achieve the above object, the present invention provides a composite extrusion head comprising: a body; the die body is pivotally arranged on the machine body and provided with an open position far away from the machine body and a closed position close to the machine body along the rotation direction; the locking structure is movably arranged on the machine body, and is provided with a locking position close to the machine body and an unlocking position far away from the machine body along the moving direction of the locking structure, and the locking structure is provided with a locking space; when the die body rotates to the closed position, the locking structure moves to the locking position, the machine body and the die body are both located in the locking space, and the locking structure is in surface-to-surface joint with the machine body and the die body, so that the die body is locked at the closed position.

Further, three locking surfaces are formed on the surface of the locking structure facing the locking space, and the three locking surfaces are arranged in a triangular shape; the machine body locking surface is formed on part of the surface of the machine body, the first mold body locking surface and the second mold body locking surface are formed on part of the surface of the mold body, and when the locking structure moves to the locking position, the three locking surfaces of the locking structure are respectively attached to the machine body locking surface, the first mold body locking surface and the second mold body locking surface adaptive ground surface.

Further, the die body comprises an upper die, at least one middle die and a lower die which are sequentially and respectively and pivotally arranged on the machine body from top to bottom, when the die body is in a closed position, the upper end face of the upper die forms a first die body locking face, the lower end face of the lower die forms a second die body locking face, and the rear end face of the machine body far away from the die body forms a machine body locking face.

Further, the locking structure includes: the first ends of the three locking arms are fixedly connected, and the three locking arms are arranged at an included angle; the three protruding structures are arranged at the second ends of the three locking arms in a protruding mode in a one-to-one correspondence mode, the three protruding structures enclose a locking space, and the protruding structures form locking faces towards the end faces of the locking space.

Further, the composite extruder head further comprises: the three first adjusting plates are detachably arranged on the machine body locking surface, the first die body locking surface and the second die body locking surface respectively; and when the die body moves to the closed position and the locking structure moves to the locking position, the three first adjusting plates and the three second adjusting plates are correspondingly attached one by one.

Further, the composite extrusion machine head further comprises a sliding rail frame, sliding rails and a locking driving oil cylinder, wherein the sliding rail frame is connected with the side wall surface of the machine body, the locking structure is in sliding connection with the sliding rail frame through the sliding rails, the locking driving oil cylinder is fixedly connected with the locking structure, and the output end of the locking driving oil cylinder is fixedly connected with the machine body.

Further, the two locking structures are respectively arranged at two sides of the machine body, the machine body is provided with two machine body locking surfaces symmetrically arranged along the central line of the composite extrusion machine head, and the die body is provided with two first die body locking surfaces and two second die body locking surfaces symmetrically arranged along the central line of the composite extrusion machine head.

Further, the composite extruder head also comprises a first bolt and a first bolt driving oil cylinder, and the first bolt is movably arranged on the extruder body through the first bolt driving oil cylinder; the upper die is provided with a first bolt hole, and when the upper die moves to an open position, the first bolt is driven by the first bolt driving oil cylinder to extend into the first bolt hole so as to lock the upper die at the open position; the composite extruder head also comprises a second bolt and a second bolt driving oil cylinder, and the second bolt is movably arranged on the machine body through the second bolt driving oil cylinder; the middle mold is provided with a second bolt hole, and when the middle mold moves to the opening position, the second bolt driving oil cylinder drives the second bolt to extend into the second bolt hole so as to lock the middle mold at the opening position.

Further, the composite extruder head further comprises: the mouth-shaped box is arranged at the front end of the machine body in a pivotable manner along the horizontal direction and is provided with a working position and an idle position along the rotation direction; the baffle is movably arranged on the machine body along the vertical direction and is provided with a stop position and a avoiding position along the moving direction, and when the mouth-shaped box moves to the working position, the baffle moves to the stop position and is matched with the stop of the mouth-shaped box so as to limit the mouth-shaped box to the working position.

Further, the composite extruder head further comprises: the transition sleeve is detachably arranged on the rear end face of the machine body and is provided with a spiral flow passage, so that a temperature control medium is introduced into the spiral flow passage to control the temperature of the machine body at the position corresponding to the transition sleeve.

By applying the technical scheme of the invention, the locking structure of the composite extruder head is optimized, specifically, the locking structure is movably arranged on the extruder body and provided with a locking position close to the extruder body and an unlocking position far away from the extruder body along the moving direction of the locking structure, when the die body rotates to the closed position, the locking structure moves from the unlocking position to the locking position, at the moment, the die body and the extruder body are both positioned in the locking space of the locking structure, and the extruder body and the die body are both in surface fit with the locking structure. Like this, when the die body has the trend of rotating to the open position by closed position under the effect of external force, the die body applys an effort to the surface of locking structure with the die body laminating, the organism applys a reaction force to the surface of locking structure with the organism laminating simultaneously, that is to say, the organism of laminating with locking structure face can carry out reliable spacing to locking structure to avoid locking structure to take place to rock and rotate, and then make locking structure can press from both sides the die body effectively, guarantee that the relative position of die body and organism is firm, lock the die body in closed position department steadily.

The locking structure of the composite extruder head provided by the application has high locking stability, can meet the production requirement of the composite extruder head under high speed and high pressure, solves the problem that the composite extruder head has the risk of glue leakage in the use process, and improves the production stability and the production efficiency of rubber products.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

FIG. 1 shows a schematic perspective view of a composite extrusion head according to an alternative embodiment of the present invention;

FIG. 2 shows a schematic front view of the composite extrusion head of FIG. 1;

FIG. 3 shows a schematic left-hand structural view of the composite extrusion head of FIG. 1;

FIG. 4 shows a schematic left-hand cross-sectional structural view of the composite extrusion head of FIG. 1;

fig. 5 shows a schematic rear view of the composite extrusion head of fig. 1.

Wherein the above figures include the following reference numerals:

10. A body; 11. a body locking surface; 20. a die body; 21. an upper die; 211. a first die body locking surface; 22. middle mold; 23. a lower die; 231. a second die locking surface; 30. a locking structure; 31. a locking arm; 32. a bump structure; 320. a locking space; 321. a locking surface; 40. a slide rail frame; 50. a slide rail; 60. locking a driving oil cylinder; 61. a connecting stud; 70. a first latch; 80. a first bolt driving oil cylinder; 100. a second bolt driving oil cylinder; 110. a mouth box; 111. an upper frame; 112. a lower frame; 120. a baffle; 130. a transition sleeve; 131. an upper transition sleeve; 132. a middle transition sleeve; 133. a lower transition sleeve; 141. an upper die opening and closing cylinder; 142. an upper die opening and closing cylinder bracket; 143. the upper die is connected with the bracket; 151. a middle mold opening and closing cylinder; 152. middle mold opening and closing cylinder bracket; 161. a lower die opening and closing cylinder; 162. the lower die is provided with an oil cylinder bracket; 171. a baffle driving cylinder; 172. the baffle drives the oil cylinder bracket; 180. a die plate; 190. a rotating frame; 200. a rotation shaft; 210. an embedded runner plate; 220. a first adjustment plate; 230. and a second adjusting plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention provides a composite extrusion machine head, which aims at solving the problem that the locking structure of the composite extrusion machine head in the prior art cannot realize stable locking of a die body, so that the composite extrusion machine head has the risk of easy leakage of sizing materials in the use process.

As shown in fig. 1 to 5, the composite extrusion head includes a body 10, a die body 20, and a locking structure 30, the die body 20 being pivotably provided on the body 10 and having an open position away from the body 10 and a closed position close to the body 10 in a rotational direction thereof, the locking structure 30 being movably provided on the body 10 and having a locking position close to the body 10 and an unlocking position away from the body 10 in a moving direction thereof, the locking structure 30 having a locking space 320; when the mold body 20 moves to the closed position, the locking structure 30 moves to the locking position, the machine body 10 and the mold body 20 are both located in the locking space 320, and the locking structure 30 is in surface-to-surface fit with both the machine body 10 and the mold body 20, so as to lock the mold body 20 in the closed position.

In the present application, the locking structure 30 of the composite extrusion head is optimized, specifically, the locking structure 30 is movably disposed on the machine body 10 and has a locking position close to the machine body 10 and an unlocking position far from the machine body 10 along the moving direction thereof, when the die body 20 is rotated to the closed position, the locking structure 30 is moved from the unlocking position to the locking position, at this time, both the die body 20 and the machine body 10 are located in the locking space of the locking structure 30, and both the machine body 10 and the die body 20 are in surface-to-surface lamination with the locking structure 30. Thus, when the mold body 20 has a tendency to rotate from the closed position to the open position under the action of external force, the mold body 20 applies a force to the surface of the locking structure 30, which is attached to the mold body 20, and the machine body 10 applies a reaction force to the surface of the locking structure 30, which is attached to the machine body 10, that is, the machine body 10, which is attached to the surface of the locking structure 30, reliably limits the locking structure 30, and prevents the locking structure 30 from shaking and rotating, so that the locking structure 30 can effectively clamp the mold body 20, and the relative position between the mold body 20 and the machine body 10 is ensured to be stable, thereby stably locking the mold body 20 at the closed position.

The locking structure 30 of the composite extrusion head provided by the application has high locking stability, can meet the production requirement of the composite extrusion head under high speed and high pressure, solves the problem that the composite extrusion head has the risk of glue leakage in the use process, and improves the production stability and the production efficiency of rubber products.

As shown in fig. 1, the locking structure 30 is movably disposed in a horizontal direction and the mold body 20 is pivotably disposed in a vertical direction.

As shown in fig. 1 and 4, the surface of the locking structure 30 facing the locking space 320 forms three locking surfaces 321, and the three locking surfaces 321 are arranged in a triangle shape; the machine body 10 has a machine body locking surface 11 formed on a part of the surface, and the mold body 20 has a first mold body locking surface 211 and a second mold body locking surface 231 formed on a part of the surface, and when the locking structure 30 moves to the locking position, the three locking surfaces 321 of the locking structure 30 are respectively attached to the adaptive ground surfaces of the machine body locking surface 11, the first mold body locking surface 211 and the second mold body locking surface 231. Thus, the locking of the die body 20 in three directions is achieved by the triangular stabilizing structure, so that the die body 20 is stably locked in the closed position, and relative movement between the die body 20 and the machine body 10 is avoided.

Optionally, the die body 20 includes an upper die 21, at least one middle die 22 and a lower die 23 which are pivotally disposed on the machine body 10 in sequence from top to bottom, when the die body 20 is in the closed position, an upper end surface of the upper die 21 forms a first die body locking surface 211, a lower end surface of the lower die 23 forms a second die body locking surface 231, and a rear end surface of the machine body 10 away from the die body 20 forms a machine body locking surface 11. In this way, the upper die 21, the at least one intermediate die 22 and the lower die 23 are all stably locked in the closed position by the locking structure 30.

In the alternative embodiment shown in fig. 4, the mold body 20 includes only one middle mold 22, and when the upper mold 21, the middle mold 22 and the lower mold 23 are all rotated to the closed position, the upper mold 21 and the middle mold 22 are engaged, the middle mold 22 is engaged with the machine body 10, the lower mold 23 is engaged with the machine body 10, the upper end surface of the upper mold 21 and the lower end surface of the lower mold 23 are obliquely arranged, and a triangle which is fittingly engaged with the three locking surfaces 321 of the locking structure 30 is formed with the rear end surface of the machine body.

The locking structure 30 of the composite extruder head provided by the application has universality and is suitable for various composite extruder heads. Specifically, in the alternative embodiment shown in FIG. 4, the compounding extruder head is a three compounding extruder head; in one embodiment of the application, not shown, the composite extruder head is a twin composite extruder head, i.e. the die body 20 comprises only an upper die and a lower die; in another embodiment of the application, not shown, the composite extruder head is a four-composite extruder head, i.e., die body 20 comprises an upper die, two middle dies, and a lower die; the locking principle is the same as that of the embodiment of the present application, and will not be described here again.

As shown in fig. 1, the locking structure 30 includes three locking arms 31 and three protruding structures 32, the first ends of the three locking arms 31 are fixedly connected, the three locking arms 31 are arranged at an included angle, the three protruding structures 32 are arranged at the second ends of the three locking arms 31 in a protruding mode in a one-to-one correspondence mode, the three protruding structures 32 enclose a locking space 320, and the protruding structures 32 form a locking surface 321 towards the end face of the locking space 320.

Alternatively, three locking arms 31 and three raised structures 32 are integrally formed.

Alternatively, the angles between the three locking arms 31 are equal and are all 120 ° angles, and the three locking surfaces 321 form an equilateral triangle.

Optionally, in the alternative embodiment shown in fig. 2, the composite extrusion head further includes three first adjusting plates 220 and three second adjusting plates 230, the three first adjusting plates 220 are detachably mounted on the body locking surface 11, the first die body locking surface 211 and the second die body locking surface 231, and the three second adjusting plates 230 are detachably mounted on the three locking surfaces 321 of the locking structure 30, respectively, so that when the die body 20 moves to the closed position and the locking structure 30 moves to the locked position, the three first adjusting plates 220 and the three second adjusting plates 230 are attached in a one-to-one correspondence. Thus, since the surface of the locking structure 30, the machine body 10 and the mold body 20 attached to each other is easy to wear in the use process of the composite extrusion head, after the first adjusting plate 220 and the three second adjusting plates 230 are arranged, if the first adjusting plate 220 and the three second adjusting plates 230 wear, the first adjusting plate 220 and/or the three second adjusting plates 230 can be replaced, so that the locking stability of the locking structure 30 to the mold body 20 is ensured, the maintenance cost of the composite extrusion head is reduced, and the service life of the composite extrusion head is prolonged.

As shown in fig. 3, the composite extrusion machine head further comprises a slide rail frame 40, a slide rail 50 and a locking driving oil cylinder 60, wherein the slide rail frame 40 is connected with the side wall surface of the machine body 10, the locking structure 30 is in sliding connection with the slide rail frame 40 through the slide rail 50, the locking driving oil cylinder 60 is fixedly connected with the locking structure 30, and the output end of the locking driving oil cylinder 60 is fixedly connected with the machine body 10. In this way, the locking driving oil cylinder 60 is used for controlling the locking structure 30 to move between the locking position and the unlocking position, specifically, the output end of the locking driving oil cylinder 60 is controlled to extend, and the locking structure 30 moves from the locking position to the unlocking position along the sliding rail frame 40 in a direction away from the machine body 10 through the sliding rail 50; the output end of the locking driving cylinder 60 is controlled to retract, and the locking structure 30 moves from the unlocking position to the locking position along the sliding rail frame 40 to the direction approaching the machine body 10 through the sliding rail 50.

As shown in fig. 5, the output end of the lock drive cylinder 60 is fixedly connected with the machine body 10 through a connecting stud 61.

As shown in fig. 1, 2 and 5, the locking structures 30 are two, the two locking structures 30 are respectively disposed at two sides of the machine body 10, the machine body 10 has two machine body locking surfaces 11 symmetrically disposed along a center line of the composite extrusion head, and the die body 20 has two first die body locking surfaces 211 and two second die body locking surfaces 231 symmetrically disposed along the center line of the composite extrusion head. In this way, the locking stability of the mold body 20 is further improved by providing two locking structures 30 at both sides of the body 10.

As shown in fig. 1 to 3, the composite extrusion head further includes a first pin 70 and a first pin driving cylinder 80, the first pin 70 being movably provided on the body 10 through the first pin driving cylinder 80; the upper die 21 is provided with a first bolt hole, and when the upper die 21 moves to the opening position, the first bolt driving oil cylinder 80 drives the first bolt 70 to extend into the first bolt hole so as to lock the upper die 21 at the opening position; the composite extruder head further comprises a second bolt and a second bolt driving oil cylinder 100, and the second bolt is movably arranged on the machine body 10 through the second bolt driving oil cylinder 100; the middle mold 22 is one, a second bolt hole is formed in the middle mold 22, and when the middle mold 22 moves to the open position, the second bolt driving oil cylinder 100 drives the second bolt to extend into the second bolt hole so as to lock the middle mold 22 in the open position. Thus, the upper die 21 is locked in the open position by the engagement of the first pin 70 with the first pin hole, and the intermediate die 22 is locked in the open position by the engagement of the second pin with the second pin hole; therefore, the upper die 21 and the middle die 22 are effectively prevented from falling back to the closed position under the action of gravity, and the safety performance of the composite extruder head is improved.

Optionally, two first bolts 70 and two first bolt driving oil cylinders 80 are provided, the two first bolt driving oil cylinders 80 are oppositely arranged at two sides of the upper die 21 along the central line of the composite extruder head, and the output ends of the two first bolt driving oil cylinders 80 synchronously extend or retract;

Alternatively, two second bolt and second bolt driving oil cylinders 100 are provided, the two second bolt driving oil cylinders 100 are oppositely arranged at two sides of the middle die 22 along the central line of the composite extrusion machine head, and the output ends of the two second bolt driving oil cylinders 100 synchronously extend or retract.

As shown in fig. 1 to 3, the composite extrusion head further includes an upper die opening and closing cylinder 141, an upper die opening and closing cylinder bracket 142, an upper die connecting bracket 143, a middle die opening and closing cylinder 151, a middle die opening and closing cylinder bracket 152, a lower die opening and closing cylinder 161, and a lower die opening and closing cylinder bracket 162. The upper die opening and closing cylinder 141 is mounted on the machine body 10 through an upper die opening and closing cylinder bracket 142, the upper die opening and closing cylinder 141 is connected with the upper die 21 through an upper die connecting bracket 143, a cylinder rod of the upper die opening and closing cylinder 141 is controlled to extend, and the upper die 21 rotates from a closed position to an open position; the first pin driving cylinder 80 is mounted on the upper mold opening and closing cylinder bracket 142, and controls the output end of the first pin driving cylinder 80 to extend, so as to drive the first pin 70 to move and insert into the first pin hole of the upper mold 21, and lock the upper mold 21 at the opening position.

As shown in fig. 3 and 5, the middle mold opening and closing cylinder 151 is mounted on the machine body 10 through a middle mold opening and closing cylinder bracket 152, a cylinder rod of the middle mold opening and closing cylinder 151 is connected with the middle mold 22, the cylinder rod of the middle mold opening and closing cylinder 151 is controlled to extend, and the middle mold 22 is rotated from a closed position to an open position; the second bolt driving oil cylinder 100 is arranged on the machine body 10, and the output end of the second bolt driving oil cylinder 100 is controlled to extend to drive the second bolt to move and insert into a second bolt hole of the middle mold 22, so that the middle mold 22 is locked at the opening position.

As shown in fig. 5, a lower mold opening and closing cylinder 161 is mounted on the machine body 10 through a lower mold opening and closing cylinder bracket 162, a cylinder rod of the lower mold opening and closing cylinder 161 is connected with the lower mold 23, the cylinder rod of the lower mold opening and closing cylinder 161 is controlled to extend, and the lower mold 23 is rotated from a closed position to an open position.

In the alternative embodiment shown in fig. 1 to 5, the cylinder rod of the lower die opening and closing cylinder 161 is controlled to retract, and the lower die 23 is moved from the open position to the closed position; the cylinder rod of the middle mold opening and closing cylinder 151 is controlled to retract, and the middle mold 22 rotates from an opening position to a closing position; the cylinder rod of the upper die opening and closing cylinder 141 is controlled to retract, and the upper die 21 rotates from an open position to a closed position; the output end of the locking driving oil cylinder 60 is controlled to retract, the locking structure 30 moves from the unlocking position to the locking position along the sliding rail frame 40 towards the direction approaching the machine body 10 through the sliding rail 50, and three locking surfaces 321 of the locking structure 30 are respectively attached to the machine body locking surface 11 of the machine body 10, the first mold body locking surface 211 of the upper mold 21 and the second mold body locking surface 231 of the lower mold 23, so that the machine body 10, the upper mold 21, the middle mold 22 and the lower mold 23 are locked together, and the locking of the mold body 20 in three directions is realized.

As shown in fig. 1 and 2, the composite extrusion head further includes a die case 110 and a barrier plate 120, the die case 110 is pivotally disposed at a front end of the body 10 in a horizontal direction and has a working position and an idle position in a rotational direction thereof, the barrier plate 120 is movably disposed on the body 10 in a vertical direction and has a blocking position and a avoiding position in a moving direction thereof, and when the die case 110 moves to the working position, the barrier plate 120 moves to the blocking position and cooperates with the die case 110 to limit the die case 110 at the working position.

As shown in fig. 1, a barrier driving cylinder 171 is provided on the machine body 10 through a barrier driving cylinder bracket 172, the barrier 120 is connected to an output end of the barrier driving cylinder 171, and the barrier 120 is controlled to move between a stopping position and a avoiding position through the barrier driving cylinder 171.

As shown in fig. 1 and 2, the mouth box 110 is pivotably provided at the front end of the body 10 in the horizontal direction by a rotating frame 190 and a rotating shaft 200. Specifically, the rotary shaft 200 is fixedly disposed at the front end of the machine body 10, the die box 110 is fixedly connected to the rotary frame 190, and the rotary frame 190 is pivotally sleeved on the rotary shaft 200.

As shown in fig. 2, the composite extrusion head further includes a die plate 180, the die plate 180 being detachably installed in the die box 110, the shape and size of the extrusion compound of the composite extrusion head being changed by replacing the die plate 180.

Alternatively, the number of the die boxes 110 is two, and the two die boxes 110 are respectively pivotably provided at both sides of the front end of the body 10 in the horizontal direction. In this way, the die plates 180 with different specifications can be respectively placed in the two die boxes 110, so that the quick die change of the composite extruder head is realized, one of the two die boxes 110 can be selected to rotate to the use position, and the other die box is positioned at the idle position, and when the rubber product model needs to be changed, the die box 110 at the use position can be rotated out, and the other die box 110 at the idle position is rotated to the use position.

In the alternative embodiment shown in fig. 1, two baffles 120 are provided on both sides of the mouth-shaped case 110 in the vertical direction, and when the baffles 120 move to the stop position, the baffles 120 located above are in stop fit with the upper frame 111 of the mouth-shaped case 110, and the baffles 120 located below are in stop fit with the lower frame 112 of the mouth-shaped case 110. Thus, after the die box 110 rotates to the use position, the output ends of the two baffle driving cylinders 171 are controlled to synchronously extend, the upper baffle 120 and the lower baffle 120 are driven to move to the stop position to limit the die box 110, so that the die box 110 cannot rotate to the idle position, and then the rubber material is stably extruded outwards through the middle part of the die box 110 to prepare a rubber product.

As shown in fig. 5, the composite extrusion head further includes a transition sleeve 130, the transition sleeve 130 being detachably disposed on the rear end surface of the body 10, the transition sleeve 130 having a spiral flow path to introduce a temperature controlling medium into the spiral flow path to control the temperature of the body 10 at a position corresponding to the transition sleeve 130.

Optionally, the composite extrusion head further includes a conveying screw, the conveying screw forms a spiral flow channel, the conveying screw is pivotally arranged in the transition sleeve 130, and the conveying screw is controlled to rotate to convey the temperature control medium, but in the long-term use process of the composite extrusion head, the conveying screw and the transition sleeve 130 are contacted to cause abrasion of the transition sleeve 130, in order to reduce maintenance cost, the detachable transition sleeve 130 is arranged, and after the transition sleeve 130 is abraded, the transition sleeve 130 can be replaced, so that the service life of the composite extrusion head is prolonged.

As shown in fig. 5, the transition sleeve 130 includes an upper transition sleeve 131, a middle transition sleeve 132, and a lower transition sleeve 133, and the upper transition sleeve 131, the middle transition sleeve 132, and the lower transition sleeve 133 correspond to the upper die 21, the middle die 22, and the lower die 23, respectively, so as to perform precise local temperature control on the upper die 21, the middle die 22, and the lower die 23.

Correspondingly, the composite extruder head further comprises three conveyor screws pivotally disposed in the upper transition sleeve 131, the middle transition sleeve 132 and the lower transition sleeve 133.

Optionally, the composite extrusion head further includes three embedded runner plates 210, and the three embedded runner plates 210 are detachably mounted on the upper die 21, the middle die 22, and the lower die 23, respectively.

Alternatively, three insert flow field plates 210 are mounted on the upper mold 21, the middle mold 22, and the lower mold 23, respectively, by screws.

Alternatively, the embedded flow field plate 210 may be replaced according to the product size.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "on the upper end face of … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite extrusion head, comprising:

A body (10);

A die body (20), the die body (20) being pivotably arranged on the machine body (10) and having an open position away from the machine body (10) and a closed position close to the machine body (10) in a rotational direction thereof;

A locking structure (30), wherein the locking structure (30) is movably arranged on the machine body (10) and is provided with a locking position close to the machine body (10) and an unlocking position far away from the machine body (10) along the moving direction, and the locking structure (30) is provided with a locking space (320);

When the die body (20) rotates to the closed position, the locking structure (30) moves to the locking position, the machine body (10) and the die body (20) are both positioned in the locking space (320), and the locking structure (30) is in surface-to-surface fit with both the machine body (10) and the die body (20), so that the die body (20) is locked at the closed position;

The surface of the locking structure (30) facing the locking space (320) forms three locking surfaces (321), and the three locking surfaces (321) are arranged in a triangle shape; the machine body locking surface (11) is formed on the partial surface of the machine body (10), the first mold body locking surface (211) and the second mold body locking surface (231) are formed on the partial surface of the mold body (20), and when the locking structure (30) moves to the locking position, the three locking surfaces (321) of the locking structure (30) are respectively attached to the machine body locking surface (11), the first mold body locking surface (211) and the second mold body locking surface (231) in a fit mode.

2. The composite extrusion head according to claim 1, wherein the die body (20) comprises an upper die (21), at least one middle die (22) and a lower die (23) which are sequentially and respectively and pivotally arranged on the die body (10) from top to bottom, when the die body (20) is in the closed position, an upper end surface of the upper die (21) forms the first die body locking surface (211), a lower end surface of the lower die (23) forms the second die body locking surface (231), and a rear end surface of the die body (10) far away from the die body (20) forms the die body locking surface (11).

3. The composite extrusion head according to claim 1, wherein the locking structure (30) comprises:

The three locking arms (31) are fixedly connected with the first ends of the three locking arms (31), and the three locking arms (31) are arranged at an included angle;

the three protruding structures (32), the three protruding structures (32) are arranged at the second ends of the three locking arms (31) in a protruding mode in a one-to-one correspondence mode, the locking space (320) is surrounded by the three protruding structures (32), and the protruding structures (32) face the end face of the locking space (320) to form the locking surface (321).

4. The composite extrusion head of claim 1, further comprising:

Three first adjusting plates (220), wherein the three first adjusting plates (220) are detachably mounted on the machine body locking surface (11), the first mold body locking surface (211) and the second mold body locking surface (231) respectively;

And the three second adjusting plates (230) are detachably arranged on the three locking surfaces (321) of the locking structure (30), and when the die body (20) moves to a closed position and the locking structure (30) moves to a locking position, the three first adjusting plates (220) and the three second adjusting plates (230) are correspondingly attached one by one.

5. The composite extrusion head according to claim 1, further comprising a slide rail frame (40), a slide rail (50) and a locking driving oil cylinder (60), wherein the slide rail frame (40) is connected with a side wall surface of the machine body (10), the locking structure (30) is slidably connected with the slide rail frame (40) through the slide rail (50), the locking driving oil cylinder (60) is fixedly connected with the locking structure (30), and an output end of the locking driving oil cylinder (60) is fixedly connected with the machine body (10).

6. The composite extrusion head according to any one of claims 1 to 5, wherein the number of locking structures (30) is two, the two locking structures (30) are respectively arranged at two sides of the machine body (10), the machine body (10) is provided with two machine body locking surfaces (11) symmetrically arranged along the central line of the composite extrusion head, and the die body (20) is provided with two first die body locking surfaces (211) and two second die body locking surfaces (231) symmetrically arranged along the central line of the composite extrusion head.

7. The composite extrusion head according to claim 2, wherein,

The composite extruder head further comprises a first bolt (70) and a first bolt driving oil cylinder (80), wherein the first bolt (70) is movably arranged on the machine body (10) through the first bolt driving oil cylinder (80);

the upper die (21) is provided with a first bolt hole, and when the upper die (21) moves to the opening position, the first bolt driving oil cylinder (80) drives the first bolt (70) to extend into the first bolt hole so as to lock the upper die (21) at the opening position;

The composite extruder head further comprises a second bolt and a second bolt driving oil cylinder (100), and the second bolt is movably arranged on the machine body (10) through the second bolt driving oil cylinder (100);

The middle mold (22) is one, a second bolt hole is formed in the middle mold (22), and when the middle mold (22) moves to the opening position, the second bolt driving oil cylinder (100) drives the second bolt to extend into the second bolt hole so as to lock the middle mold (22) at the opening position.

8. The composite extrusion head of claim 1, further comprising:

A die box (110), wherein the die box (110) is pivotally arranged at the front end of the machine body (10) along the horizontal direction and has a working position and an idle position along the rotation direction;

the baffle plate (120) is movably arranged on the machine body (10) along the vertical direction and is provided with a stop position and an avoidance position along the moving direction, and when the die box (110) moves to the working position, the baffle plate (120) moves to the stop position and is in stop fit with the die box (110) so as to limit the die box (110) to the working position.

9. The composite extrusion head of claim 1, further comprising:

The transition sleeve (130) is detachably arranged on the rear end face of the machine body (10), and the transition sleeve (130) is provided with a spiral flow passage so as to introduce a temperature control medium into the spiral flow passage to control the temperature of the machine body (10) at the position corresponding to the transition sleeve (130).