A tire vulcanizing machine and its mold clamping device

Abstract

The present invention discloses a mold clamping device, comprising a bracket, a pair of gripping pieces arranged oppositely for engaging with mold pins, a first control device for controlling the gripping pieces to move away from or toward each other, and a second control device for controlling the gripping pieces to move in the vertical direction of the bracket. The first control device and the second control device are both arranged on the bracket, and the gripping pieces are connected to the first control device and the second control device. Therefore, the present invention realizes the automation of the mold clamping and replacement process through the first control device and the second control device. Compared with manual replacement in the prior art, the time required is greatly reduced, and the efficiency of mold installation and replacement is improved. In addition, the present invention also discloses a tire vulcanizer including the above-mentioned mold clamping device.

Description

Technical Field

[0001] The present invention relates to the technical field of tire vulcanizing equipment, and more specifically, to a mold clamping device for a tire vulcanizing mold. In addition, the present invention also relates to a tire vulcanizing machine comprising the mold clamping device. Background Art

[0002] In the prior art, the installation of the mold in the tire vulcanizer requires manual bolt connection, which takes up a lot of time and manpower and reduces the efficiency of tire vulcanization production.

[0003] In summary, how to improve the efficiency of mold installation and replacement is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a mold clamping device, which realizes the automation of mold clamping and replacement through a first control device and a second control device, thereby effectively improving the efficiency of mold installation and replacement.

[0005] In addition, the present invention also provides a tire vulcanizer comprising the mold clamping device.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A mold clamping device includes a bracket, a pair of relatively arranged grabbing pieces for engaging with mold pin shafts, a first control device for controlling the grabbing pieces to move away from or approach each other, and a second control device for controlling the grabbing pieces to move in the vertical direction of the bracket. The first control device and the second control device are both arranged on the bracket, and the grabbing pieces are connected to the first control device and the second control device.

[0008] Preferably, the first control device is a clamping cylinder, and the piston rod of the clamping cylinder is connected to the grabbing pieces, so that the clamping cylinder drives the grabbing pieces to move away from or closer to each other.

[0009] Preferably, the second control device includes a hydraulic cylinder provided on the bracket and a connecting block connected to the grabbing piece, wherein the connecting block is connected to the hydraulic cylinder so that the hydraulic cylinder drives the grabbing piece to move in the vertical direction of the bracket through the connecting block.

[0010] Preferably, one of the connecting block and the grabbing piece is provided with a first groove, and the other is provided with a first protrusion engaged with the first groove.

[0011] Preferably, the bracket includes a horizontal plate for mounting the second control device and a vertical plate for mounting the first control device, and the vertical plates are vertically connected to opposite ends of the horizontal plate.

[0012] Preferably, a second groove perpendicular to the horizontal plate is provided on the vertical plate, and the clamping cylinder is installed in the second groove.

[0013] Preferably, a third groove perpendicular to the second groove is provided on the vertical plate, and a guide block for guiding the clamping cylinder is provided in the third groove, and the distance between the two guide blocks is the same as the width of the clamping cylinder.

[0014] Preferably, the grabbing piece is a semicircular grabbing piece adapted to the mold shaft pin, and the curvature radius of the semicircular grabbing piece is the same as the radius of the mold shaft pin.

[0015] A tire vulcanizer, comprising a vulcanizer body and a mold clamping device for clamping a mold, wherein the mold clamping device is connected to the vulcanizer body and is any one of the mold clamping devices described above.

[0016] The mold clamping device provided by the present invention includes a bracket, a pair of relatively arranged grabbing pieces for clamping with the mold pin shaft, a first control device for controlling the grabbing pieces to move away from or approach each other, and a second control device for controlling the grabbing pieces to move in the vertical direction of the bracket. The first control device and the second control device are both arranged on the bracket, and the grabbing pieces are connected to the first control device and the second control device.

[0017] When installing the mold, the first control device controls the grabbing pieces to approach each other and engage with the mold axis pin, and then the second control device drives the grabbing pieces to rise in the vertical direction of the bracket, thereby driving the mold engaged by the grabbing pieces to move upward, providing connection pre-tightening force for the adhesion between the vulcanized tire and the mold and the gravity of the mold itself.

[0018] When changing the mold, the second control device drives the grabbing piece to move downward in the vertical direction of the bracket, thereby driving the mold clamped by the grabbing piece to descend, and then the first control device controls the grabbing pieces to move away from each other, so that the mold shaft pin is disengaged from the mold clamping device.

[0019] Therefore, the present invention realizes the automation of the mold clamping and replacement process through the first control device and the second control device, which greatly reduces the time required and improves the efficiency of mold installation and replacement compared with the manual replacement in the prior art.

[0020] In addition, the present invention also provides a tire vulcanizer comprising the mold clamping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of a specific embodiment of the mold clamping device provided by the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the main view of the mold clamping device.

[0024] Figure 1-Figure 2 middle:

[0025] 1 is a bracket, 11 is a horizontal plate, 12 is a vertical plate, 13 is a bottom plate, 2 is a clamping cylinder, 3 is a grab plate, 4 is a hydraulic cylinder, 5 is a connecting block, and 6 is a guide block. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The core of the present invention is to provide a mold clamping device, which realizes the automation of mold clamping and replacement through a first control device and a second control device, effectively improving the efficiency of mold installation and replacement.

[0028] The present invention also provides a tire vulcanizer comprising the mold clamping device.

[0029] Please refer to Figure 1-Figure 2 , Figure 1 This is a schematic structural diagram of a specific embodiment of the mold clamping device provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the main view of the mold clamping device.

[0030] The mold clamping device provided by the present invention includes a bracket 1, a pair of relatively arranged grabbing pieces 3 for clamping with the mold pin shaft, a first control device for controlling the grabbing pieces 3 to move away from or approach each other, and a second control device for controlling the grabbing pieces 3 to move in the vertical direction of the bracket 1. The first control device and the second control device are both arranged on the bracket 1, and the grabbing piece 3 is connected to the first control device and the second control device.

[0031] For preference, please refer to Figure 1 The first control device can be a clamping cylinder 2, and the piston rod of the clamping cylinder 2 is connected to the grabbing piece 3, so that the clamping cylinder 2 drives the grabbing pieces 3 to move away from or closer to each other by controlling the piston rod to retract or extend.

[0032] When the mold needs to be clamped, the proximity switch in the clamping cylinder 2 detects that the mold enters the clamping device and controls the clamping cylinder 2 to extend, so that the clamping cylinder 2 moves in the direction of approaching each other, thereby driving the grabbing pieces 3 to approach each other until they are engaged with the mold shaft pin.

[0033] When the mold needs to be replaced, the proximity switch in the clamping cylinder 2 controls the clamping cylinder 2 to contract, causing the clamping cylinder 2 to move away from each other, thereby driving the grab pieces 3 to move away from each other and disengaging the mold from the mold clamping device.

[0034] Of course, the clamping cylinder 2 may also be replaced by a hydraulic cylinder 4, an electric push rod or other structures with similar functions.

[0035] Preferably, considering the preload range required for the second control device, please refer to Figure 1 The second control device may include a hydraulic cylinder 4 provided on the bracket 1 and a connecting block 5 connected to the grabbing piece 3, the connecting block 5 being connected to the hydraulic cylinder 4 so that the hydraulic cylinder 4 drives the grabbing piece 3 to move in the vertical direction of the bracket 1 through the connecting block 5.

[0036] In addition, the hydraulic cylinder 4 is convenient for adjusting the pressure and can provide a constant connection pre-tightening force, so that the mold is not easy to loosen after installation.

[0037] For preference, please refer to Figure 1 and Figure 2 , the connecting block 5 can be set as a T-shaped block, and of course the connecting block 5 can also be set as other geometric shapes.

[0038] When the mold needs to be installed, after the grab piece 3 is engaged with the mold shaft pin, the hydraulic cylinder 4 contracts, driving the grab piece 3 and the mold shaft pin engaged with the grab piece 3 to move upward, thereby providing a connection pre-tightening force for the adhesion between the vulcanized tire and the mold in the tire vulcanizer and the gravity of the mold itself.

[0039] When the mold needs to be replaced, the hydraulic cylinder 4 extends to drive the grabbing piece 3 and the mold shaft pin engaged with the grabbing piece 3 to descend until they reach the installation position of the mold shaft pin.

[0040] Considering that the gripping piece 3 is connected to the connecting block 5 and that the gripping piece 3 may move relative to the connecting block 5, it is preferable to provide a first groove on one of the connecting block 5 and the gripping piece 3, and a first protrusion on the other that engages with the first groove. Therefore, when the clamping cylinder 2 extends or retracts, the gripping piece 3 can move relative to the connecting block 5, achieving relative proximity or distance.

[0041] The cross-sectional shape of the first groove may be rectangular, triangular, or any other geometric shape, as long as it can be engaged with the first protrusion.

[0042] The number of the first grooves can be one, two, or more, and the specific number is determined according to actual production needs.

[0043] Preferably, the extending direction of the first groove is the same as the axial direction of the clamping cylinder 2 .

[0044] The grab piece 3 is used to engage with the mold pin to clamp the mold. Preferably, the grab piece 3 can be set as a semicircular grab piece that is adapted to the mold shaft pin. The curvature radius of the semicircular grab piece is the same as the radius of the mold shaft pin, so that the grab piece 3 can be better engaged with the mold shaft pin, avoiding the situation where the mold falls due to loose clamping.

[0045] When the mold is installed, the first control device controls the grab pieces 3 to approach each other and engage with the mold axis pin, and then the second control device drives the grab pieces 3 to move upward in the vertical direction of the bracket 1, thereby driving the mold engaged by the grab pieces 3 to move upward, providing a connection pre-tightening force for the adhesion between the vulcanized tire and the mold and the gravity of the mold itself.

[0046] When replacing the mold, the second control device drives the grabbing piece 3 to move downward in the vertical direction of the bracket 1, thereby driving the mold clamped by the grabbing piece 3 to move downward, and then the first control device controls the grabbing pieces 3 to move away from each other, so that the mold shaft pin is disengaged from the mold clamping device.

[0047] Therefore, in this embodiment, the mold clamping and replacement process is automated through the first control device and the second control device, which greatly reduces the time required and improves the efficiency of mold installation and replacement compared with manual replacement in the prior art.

[0048] Based on the above embodiment, the bracket 1 may include a horizontal plate 11 for installing the second control device and a vertical plate 12 for installing the first control device. The vertical plate 12 is vertically connected to the opposite ends of the horizontal plate 11. It has a simple structure and is easy to process. At the same time, it provides the space required for the movement of the first control device and the second control device.

[0049] Preferably, in order to enhance the stability of the structure, the bracket 1 may further include a bottom plate 13 for connecting to the tire vulcanizer body, the bottom plate 13 is parallel to the horizontal plate 11, and a through hole for the mold shaft pin to pass through is provided on the bottom plate 13.

[0050] Preferably, mounting bosses may be provided on the four corners of the bottom plate 13 , and threaded holes for connecting with the tire vulcanizer body are provided on the mounting bosses.

[0051] Based on the above embodiment, a second groove perpendicular to the horizontal plate 11 can be provided on the vertical plate 12, and the clamping cylinder 2 is installed in the second groove. Therefore, when the hydraulic cylinder 4 drives the grab plate 3 to move in the vertical direction of the bracket 1, the clamping cylinder 2 can follow the grab plate 3 to move, thereby avoiding the collision between the piston rod of the clamping cylinder 2 and the cylinder wall during movement, and extending the life of the clamping cylinder 2.

[0052] Preferably, a third groove perpendicular to the second groove may be provided on the vertical plate 12 , and a guide block 6 for guiding the clamping cylinder 2 is provided in the third groove, and the distance between the two guide blocks 6 is the same as the width of the clamping cylinder 2 .

[0053] In addition to the aforementioned mold clamping device, the present invention further provides a tire vulcanizer including the mold clamping device disclosed in the aforementioned embodiment. The tire vulcanizer includes a vulcanizer body and a mold clamping device for clamping the mold, the mold clamping device being connected to the vulcanizer body. The mold clamping device is the mold clamping device disclosed in the aforementioned embodiment. The structures of the other components of the tire vulcanizer are referenced to the prior art and will not be described in detail herein.

[0054] It should be noted that the first control device and the second control device as well as the first, second and third in the first groove, the second groove and the third groove mentioned in this application document are only used to distinguish the difference in position and do not contain any limitation on the order.

[0055] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0056] The tire vulcanizer and mold clamping device provided by the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications may be made to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A mold clamping device, characterized in that: The invention comprises a bracket (1), a pair of gripping pieces (3) arranged opposite to each other and used for engaging with a mold pin shaft, a first control device for controlling the gripping pieces (3) to move away from or approach each other, and a second control device for controlling the gripping pieces (3) to move in the vertical direction of the bracket (1), wherein the first control device and the second control device are both arranged on the bracket (1), and the gripping piece (3) is connected to the first control device and the second control device; The first control device is a clamping cylinder (2), and the piston rod of the clamping cylinder (2) is connected to the grabbing piece (3), so that the clamping cylinder (2) drives the grabbing piece (3) to move away from or towards each other; The second control device comprises a hydraulic cylinder (4) provided on the bracket (1) and a connecting block (5) connected to the grabbing piece (3), wherein the connecting block (5) is connected to the hydraulic cylinder (4) so that the hydraulic cylinder (4) drives the grabbing piece (3) to move in the vertical direction of the bracket (1) via the connecting block (5); One of the connecting block (5) and the grabbing piece (3) is provided with a first groove, and the other is provided with a first protrusion engaged with the first groove, and the extending direction of the first groove is the same as the axial direction of the clamping cylinder (2); The bracket (1) includes a horizontal plate (11) for mounting the second control device and a vertical plate (12) for mounting the first control device, wherein the vertical plate (12) is vertically connected to two opposite ends of the horizontal plate (11), and a second groove perpendicular to the horizontal plate (11) is provided on the vertical plate (12), and the clamping cylinder (2) is mounted in the second groove; A third groove perpendicular to the second groove is provided on the vertical plate (12); a guide block (6) for guiding the clamping cylinder (2) is provided in the third groove; and a distance between two guide blocks (6) is the same as the width of the clamping cylinder (2); The bracket (1) further comprises a bottom plate (13) for connecting to a tire vulcanizer body, the bottom plate (13) being parallel to the horizontal plate (11), and a through hole for a mold shaft pin to pass through is provided on the bottom plate (13).

2. The mold clamping device according to claim 1, characterized in that: The grabbing piece (3) is a semicircular grabbing piece adapted to the mold shaft pin, and the curvature radius of the semicircular grabbing piece is the same as the radius of the mold shaft pin.

3. A tire vulcanizer, comprising a vulcanizer body and a mold clamping device for clamping a mold, wherein the mold clamping device is connected to the vulcanizer body, and is characterized in that: The mold clamping device is the mold clamping device according to claim 1 or 2.

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