CN220482503U

CN220482503U - Quick-change extrusion device for tire blanks

Info

Publication number: CN220482503U
Application number: CN202321755766.1U
Authority: CN
Inventors: 化树利; 鲍浩青; 张永华
Original assignee: Shandong Bailong Tire Co ltd
Current assignee: Shandong Bailong Tire Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-02-13
Anticipated expiration: 2033-07-06

Abstract

The utility model discloses a quick-change extrusion device for tire blanks, which comprises extrusion equipment, wherein the extrusion equipment comprises a die, a die holder and a die holder; supporting mechanisms are symmetrically arranged on two sides of the extrusion equipment, and one end of each supporting mechanism is hinged with the extrusion equipment through a swinging mechanism; the supporting mechanism comprises a rotating seat, a through hole penetrating through the rotating seat in the width direction is formed in the middle of the rotating seat, the extrusion die is inserted into the through hole in an adaptive manner, and the width of the extrusion die is not shorter than that of the through hole; the upper side and the lower side of the extrusion equipment are respectively provided with a positioning block. According to the utility model, a bolt fastening mode is not required, the extrusion die can be directly embedded into the rotating seat, the purpose of rapidly replacing the extrusion die is realized through swinging, and the operation is convenient. The magnetic component prevents the extrusion die from naturally falling off and being broken in the swinging process, so that the connection is more stable. The extrusion dies with different sizes can swing through the swinging mechanism, can move in parallel, can be attached to the discharge end in a flat manner, omits the link of repeated adjustment and approval, and is more handy for workers to operate.

Description

Quick-change extrusion device for tire blanks

Technical Field

The utility model belongs to the technical field of tire processing equipment, and particularly relates to a quick-change extrusion device for tire blanks.

Background

In the production of tires, extrusion equipment is used to extrude a billet of the tire, the shape and size of the extrusion being controlled by an extrusion die. At present, the extrusion die is installed at the discharge end of extrusion equipment through bolt fastening, and the loading and unloading mode needs manual repeated operation of workman, and is comparatively loaded down with trivial details.

In addition, in order to produce tires of different specifications, the extrusion dies can be replaced at intervals according to production requirements. However, the bolt fastening and installing mode is very time-consuming, and the workers need to repeatedly check the installing position during manual loading and unloading, otherwise, blanks can leak out of the gaps, and the normal production progress is slowly influenced during the loading and unloading process. Especially in the disassembly process, the extrusion die is influenced by the high temperature of the blank, the self temperature of the extrusion die is higher, a worker also needs to wear thicker gloves for operation, the hand feeling is poor, the operation is inconvenient.

Disclosure of Invention

The utility model aims to solve the technical problems that the replacement of an extrusion die is inconvenient and the normal production progress is affected in the prior art, and provides a quick-change extrusion device for a tire blank. The extrusion die can be rapidly assembled and disassembled, meanwhile, the operation of workers can be facilitated, and the labor intensity is reduced.

In order to achieve the above object, the present utility model provides a quick-change extrusion device for a tire blank, comprising an extrusion apparatus;

the method is characterized in that:

supporting mechanisms for correspondingly attaching the extrusion die to the discharge end of the extrusion equipment are symmetrically arranged on two sides of the extrusion equipment, and one end of each supporting mechanism is hinged with the extrusion equipment through a swinging mechanism;

the supporting mechanism comprises a rotating seat, a through hole penetrating through the rotating seat in the width direction is formed in the middle of the rotating seat, the extrusion die is inserted into the through hole in an adaptive manner, and the width of the extrusion die is not shorter than that of the through hole;

the upper side and the lower side of the extrusion equipment are respectively provided with a positioning block used for firmly attaching the extrusion die to the discharge end of the extrusion equipment, and the positioning blocks move towards the extrusion die or move away from the extrusion die under the drive of the driving end of the driving part.

As a further technical scheme, swing mechanism includes U type spacing ring, the one end of rotating the seat is equipped with can adapt the joint and is in the rotation post in the U type spacing ring inside groove, rotate the seat through rotate the post with the rotation of U type spacing ring is connected and is realized towards extrusion equipment discharge end direction swing or keep away from extrusion equipment discharge end direction swing.

As a further technical scheme, a notch close to the direction of the opening end of the U-shaped limiting ring is arranged on one side, away from the discharging end of the extrusion equipment, of the U-shaped limiting ring, and the size of the notch is matched with the diameter of the rotating column.

As a further technical scheme, the rotating seat is provided with a magnetic component close to the direction of the through hole.

As a further technical scheme, the inner diameter of the through hole far away from one side of the extrusion equipment is provided with a step table for blocking the extrusion die.

As a further technical scheme, the one end of rotating the seat and keeping away from swing mechanism is equipped with bellying, bellying with the spacing platform that is equipped with on the extrusion equipment corresponds the joint each other.

As a further technical scheme, a pipeline for circulating cooling medium is arranged in the extrusion die, and the pipeline is communicated with the pump station through a hose.

As a further technical scheme, at least one side of the rotating seat is provided with an opening corresponding to the port of the pipeline.

As a further technical scheme, a corner of the positioning block, which faces the direction of the extrusion die, is in an inclined plane shape.

By adopting the technical scheme, the utility model has the following technical effects:

the extrusion die can be directly embedded into the rotating seat without using a bolt fastening mode, and the purpose of rapidly replacing the extrusion die is achieved through the swinging of the rotating seat. The switching between different extrusion dies is quick and the alignment is accurate, and the positioning blocks are used for clamping and fixing the extrusion dies through the driving part, so that the operation is convenient.

The extrusion die can magnetically attract the magnetic components arranged on the rotating seat, so that the extrusion die can be prevented from naturally falling off and being broken in the swinging process, and the connection is more stable.

Extrusion dies with different sizes can swing under the movable connection of the swing mechanism, can move in parallel, can be in flat fit with the discharge end, omits the link of repeated adjustment and approval, and is more handy for workers to operate.

Drawings

FIG. 1 is a schematic top view of the structure of the present utility model;

FIG. 2 is a schematic partial enlarged view of the structure of FIG. 1;

FIG. 3 is a schematic diagram of the change state structure of FIG. 2;

FIG. 4 is a second schematic diagram of the variation status structure of FIG. 2;

FIG. 5 is a schematic front view of the structure of the rotary base of the present utility model;

FIG. 6 is a schematic perspective view of the swing mechanism of the present utility model;

FIG. 7 is a schematic side cross-sectional view of the extrusion die of the present utility model;

FIG. 8 is a schematic diagram of the change state structure of FIG. 7;

fig. 9 is a schematic top view of the structure of the U-shaped stop collar of the present utility model.

In the figure:

1-extrusion device:

200-a rotating seat 201-an extrusion die 202-a through hole 203-a grab handle 204-a protruding part 205-a rotating column 206-a step 207-a magnetic part 208-a hand hole;

300-positioning block 301-inclined plane;

400-U-shaped limiting ring 401-inner groove 402-notch.

Description of the embodiments

For a clearer description of the utility model, it will be apparent that the embodiments are briefly described below with reference to the accompanying drawings, in which the drawings in the following description are only some embodiments of the utility model, from which other drawings can be obtained, without inventive effort, for a person skilled in the art.

Example 1

Referring to fig. 1 to 9, the quick-change extrusion device for tire blanks of the utility model comprises extrusion equipment 1, raw materials are heated in the extrusion equipment 1 to be in a molten state, support mechanisms for correspondingly attaching the extrusion die 201 to the discharge end of the extrusion equipment 1 are symmetrically arranged on two sides of the extrusion equipment 1, one end of each support mechanism is hinged with the extrusion equipment 1 through a swinging mechanism, and the swinging mechanism can be in a rotating shaft hinged or hinge hinged mode. In actual use, the supporting mechanism on one side is in a to-be-used state, a worker can pre-assemble and disassemble the extrusion die, the supporting mechanism on the other side is provided with the extrusion die to be attached to extrusion equipment (refer to fig. 1), and the raw materials in a molten state can be molded after passing through the extrusion die.

The supporting mechanism comprises a rotating seat 200, a through hole 202 penetrating through the middle of the rotating seat 200 in the width direction is formed in the middle of the rotating seat, extruded raw materials can fall into a conveyor belt to be conveyed through the through hole 202, the extrusion die 201 is inserted into the through hole 202 in an adaptive manner, the labor intensity of workers can be greatly reduced through the adaptive insertion of the extrusion die and the through hole, and the process is rapid and convenient. The width of the extrusion die 201 is not shorter than the width of the through hole 202, so that no gap is generated at the joint and no raw material leaks.

The upper and lower sides of the extrusion device 1 are respectively provided with a positioning block 300 for firmly attaching the extrusion die 201 to the discharge end of the extrusion device 1, that is, the positioning block 300 is used for fixing and positioning the extrusion die 201 to prevent displacement, that is, the traditional bolt fastening mode is replaced. The positioning block 300 is driven by the driving end of the driving part (i.e. the driving oil cylinder) to move towards the extrusion die 201 or move away from the extrusion die 201. The positioning block 300 is in a fixed state when approaching each other (refer to fig. 7); otherwise, the extrusion die is in a loose state (refer to fig. 8), and the extrusion die can be smoothly taken out.

In the present utility model, a corner of the positioning block 300 facing the extrusion die is inclined 301. That is, the inclined surface 301 can be extended and contracted more smoothly, and hard collision does not occur. Meanwhile, the inclined plane can adapt to extrusion dies with different widths, namely, when the width of the extrusion die is wider, the positioning block 300 can be adapted to be attached to the extrusion die by utilizing the inclined angle of the inclined plane 301. And when the width of the extrusion die is small, the positioning block 300 may be completely protruded.

As a further solution, the inner diameter of the through hole 202 at the side away from the extrusion apparatus 1 is provided with a stepped platform 206 for blocking the extrusion die 201. The step table 206 can better limit and prop against the extrusion die, and the positioning block 300 can be directly attached to the rotating seat to play a role of fixing the position of the extrusion die without being directly attached to the extrusion die through the step table 206, so that the travel distance of the positioning block 300 is shortened, and the abrasion caused by direct contact to the extrusion die is reduced.

The rotating seat 200 is provided with a magnetic component 207 close to the direction of the through hole 202, and the magnetic component 207 is a magnet, so that the magnetic fixation of the extrusion die can be realized. The firm effect of connection is improved, especially when the drawing of patterns, the laminating department gap of mould and discharge end is bored a small amount of sticky raw materials easily, and it condenses again after precooling, adhesion mould easily. If the magnetic block is not arranged, when the rotating seat is opened, the hand feeling of a worker is poor, and the adhesion situation cannot be obviously felt. When the rotating seat is opened for a certain angle, the die loses the supporting force and falls down to be broken. After the magnetic block is arranged, the connection stability between the rotating seat and the die can be increased, and the resistance is larger when a worker opens the rotating seat, so that the adhesion condition can be found more easily.

The method comprises the following steps: after extrusion die and discharge end adhesion, the in-process that the rotation seat was opened, magnet also can adsorb extrusion die simultaneously, not only can produce hard contact friction between the two, still can be greater under the effect of magnetic attraction's resistance, and the workman just can obviously feel the effort this moment, will improve attention at this moment, prevents the drop of mould.

When the residual sizing material in the clearance is cleared up, receive the effect that the magnetism was inhaled, when the workman was shoveled the operation in to the clearance, also can prevent to rotate the seat atress and swing naturally and open, can realize rotating the connection state that seat 200 and extrusion die 201 laminate all the time, only after the workman was shoveled the sizing material in the clearance completely, can separate extrusion die and discharge end, just can smooth opening at this moment and rotate the seat, extrusion die is fixed on rotating the seat all the time.

In addition, when the extrusion die 201 swings together with the rotating base 200, it is necessary to maintain good connection stability, and to prevent the extrusion die from being thrown out and broken by centrifugal force. Moreover, the dead weight of the extrusion die and the rotating seat is large, the other end is easy to sag and deform by means of rotating and connecting one end, and the extrusion die can be firmly connected to the rotating seat through the magnetic attraction and fixation of the magnet.

As a further technical solution, a protruding portion 204 is disposed at an end of the rotating base 200 away from the swinging mechanism, and the protruding portion 204 is clamped with a limiting table disposed on the extrusion device 1 in a corresponding manner. That is, when the rotating seat drives the extrusion die 201 to horizontally attach to the discharge end, the supporting effect can be realized by using the clamping connection between the protruding part 204 and the limiting table, so that the phenomenon that the other end of the rotating seat sags only due to the supporting of the swinging mechanism is prevented, and the deformation of the swinging mechanism is prevented.

As a further technical solution, a pipeline for circulating a cooling medium is provided in the extrusion die 201, and the pipeline is communicated with the pump station through a hose. The pipelines are connected in series, and the cooling medium can realize serpentine circulation heat exchange, so that the cooling solidification of the tire blank is improved, the temperature of the extrusion die is reduced, and the tire blank is solidified and molded more quickly. At least one side of the rotating seat 200 is provided with an opening corresponding to the port of the pipeline, and the hose can be directly communicated with the pipeline on the extrusion die through the opening.

Example two

Referring to fig. 1 to 4 and 9, the present embodiment is different from the first embodiment in that the swing mechanism includes a U-shaped stopper ring 400, which is fastened to the extrusion apparatus. One end of the rotating seat 200 is provided with a rotating column 205 which can be adaptively and clamped in the inner groove 401 of the U-shaped limiting ring 400, and the rotating seat 200 swings towards the discharge end direction of the extrusion equipment 1 or swings away from the discharge end direction of the extrusion equipment 1 through the rotating connection of the rotating column 205 and the U-shaped limiting ring 400.

This configuration is adopted because the dimensions of the blanks vary depending on the type of tire, for example, the dimensions of the blanks vary greatly when producing a tractor tire and when producing an electric vehicle tire, and the dimensions of the tractor tire blanks are larger (such as parameters of tread thickness, tread width, cross-sectional shape, etc.), and the required extrusion die 201 is also enlarged. The blank size of the electric bicycle tire is smaller, the cross-sectional shape is simpler, and the required extrusion die size is smaller (as in the extrusion die of fig. 7-8, which is a cross-sectional view in the width direction). If a conventional hinge or spindle hinge is adopted, it cannot be ensured that extrusion dies 201 with different sizes can be attached to the discharge end in a flat manner.

That is, the center point of rotation of the hinge or the hinge is fixed, and only one dimension of the extrusion die can be adapted, while the width dimension of the extrusion die 201 is changed according to different products, and the extrusion dies with different width dimensions cannot be attached to the discharge end in parallel by only one fixed center point. Therefore, by adopting the structure, not only can swing, but also the forward movement or the backward movement in the parallel direction (refer to fig. 3) can be realized, so that the extrusion dies with different width sizes can be ensured to be in flat fit with the discharge end, no obvious gap is formed between the extrusion dies and the discharge end, and no tyre material can leak.

Example III

Referring to fig. 6, the difference between the present embodiment and the second embodiment is that a notch 402 is provided on a side of the U-shaped stop collar 400 away from the discharge end of the extrusion apparatus 1, which is close to the direction of the opening end, and the size of the notch 402 is adapted to the diameter of the rotation column 205. Through setting up this structure can conveniently rotate the quick replacement of seat 200, be convenient for later maintenance. That is, the rotating base 200 can be detached by inserting the rotating post 205 and the notch 402, so that the purpose of replacement is achieved, and the U-shaped limit ring 400 does not need to be detached integrally.

Because the setting of breach 402 can influence the supporting effect of U type spacing ring 400 to a certain extent, can utilize a C type buckle adaptation joint in the external diameter department of U type spacing ring during the use to this realizes the parcel support to breach 402 department, improves the supporting effect and prevents the deformation. Of course, this can also be achieved by increasing the size or increasing the hardness of the material.

Working principle:

the supporting mechanisms at two sides of the extrusion equipment are in a state of being used at intervals, namely one side is in a use state, and the other side is in a non-use state. The workman installs operations such as extrusion tooling to unused supporting mechanism to make things convenient for quick to switch both sides supporting mechanism, saved a large amount of dismouting time. When the extrusion die is disassembled, the driving part (i.e. the driving oil cylinder) is controlled to enable the positioning block 300 to shrink, the rotating seat and/or the extrusion die lose the ejection force in the extrusion direction (refer to fig. 8), and at the moment, a worker pulls the rotating seat to swing by taking the rotating column 205 as the center of a circle through the grab handle 203, so that the extrusion die and the extrusion equipment can be smoothly separated from each other. Even if some Xu Nianlian exists between the two, the extrusion die is difficult to separate from the rotating seat under the adsorption action of the magnet, and a worker can easily sense the swinging resistance, so that the extrusion die is prevented from falling off and being broken due to the loss of support. At this time, the worker is attached to the discharging end by the rotary seat at the other side and is fixed by the positioning block. The whole replacement is very short, and a worker can take out the extrusion die 201 through the hand hole 208 for cleaning and maintenance after the replacement.

Because the extrusion dies are different in size and specification, and the extrusion dies must be attached to the discharge end in parallel, the inner groove 401 of the U-shaped stop collar 400 can adapt to the rotation and linear movement of the axle center of the rotation column 205, so that the extrusion dies with different sizes and specifications can be attached to the discharge end in parallel (refer to fig. 2 and 3).

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included.

Claims

1. A quick-change extrusion device for tyre blanks, comprising an extrusion device (1);

the method is characterized in that:

supporting mechanisms for correspondingly attaching the extrusion die (201) to the discharge end of the extrusion equipment (1) are symmetrically arranged on two sides of the extrusion equipment (1), and one end of each supporting mechanism is hinged with the extrusion equipment (1) through a swinging mechanism;

the supporting mechanism comprises a rotating seat (200), a through hole (202) penetrating through the middle of the rotating seat (200) in the width direction is formed in the middle of the rotating seat, an extrusion die (201) is inserted into the through hole (202) in an adapting mode, and the width of the extrusion die (201) is not shorter than that of the through hole (202);

the extrusion device is characterized in that positioning blocks (300) used for firmly attaching the extrusion die (201) to the discharge end of the extrusion device (1) are respectively arranged on the upper side and the lower side of the extrusion device (1), and the positioning blocks (300) move towards the extrusion die (201) or move away from the extrusion die (201) under the driving of the driving end of the driving part.

2. The quick-change extrusion device of claim 1, wherein: the swing mechanism comprises a U-shaped limiting ring (400), one end of the rotating seat (200) is provided with a rotating column (205) which can be connected with an inner groove (401) of the U-shaped limiting ring (400) in an adaptive clamping mode, and the rotating seat (200) swings towards the direction of the discharge end of the extrusion equipment (1) or swings away from the direction of the discharge end of the extrusion equipment (1) through the rotating connection of the rotating column (205) and the U-shaped limiting ring (400).

3. The quick-change extrusion device of claim 2, wherein: one side of the U-shaped limiting ring (400) far away from the discharging end of the extrusion equipment (1) is provided with a notch (402) close to the direction of the opening end of the U-shaped limiting ring, and the size of the notch (402) is matched with the diameter of the rotating column (205).

4. The quick-change extrusion apparatus of claim 1 or 2, characterized in that: the rotating seat (200) is provided with a magnetic component (207) which is close to the direction of the through hole (202).

5. The quick-change extrusion apparatus of claim 1 or 2, characterized in that: the inner diameter of the through hole (202) far away from one side of the extrusion equipment (1) is provided with a step table (206) for blocking the extrusion die (201).

6. The quick-change extrusion apparatus of claim 1 or 2, characterized in that: one end of the rotating seat (200) far away from the swinging mechanism is provided with a protruding part (204), and the protruding part (204) is clamped with a limiting table arranged on the extrusion equipment (1) in a mutually corresponding mode.

7. The quick-change extrusion device of claim 1, wherein: and a pipeline for circulating cooling medium is arranged in the extrusion die (201), and the pipeline is communicated with a pump station through a hose.

8. The quick-change extrusion device of claim 7, wherein: at least one side of the rotating seat (200) is provided with an opening corresponding to the port of the pipeline.

9. The quick-change extrusion device of claim 1, wherein: a corner of the positioning block (300) facing the extrusion die is in an inclined plane (301) shape.