A stress relief device for mold repair

Abstract

The present invention discloses a stress elimination device for mold repair, which relates to the field of stress elimination technology, including a workbench, an outer mold and an inner mold, and also includes: an inner plate, which is arranged above the inner mold, and a collar is rotatably installed on the outer surface of the inner plate; an inner frame, which forms a moving channel with the inner plate; a slider, which is slidably installed in the moving channel, and a sleeve is inserted in the interior of the slider, and a welding gun head is installed in the interior of the sleeve; a percussion hammer, which is arranged on one side of the welding gun head and moves synchronously with the welding gun head. The welding gun head in the sleeve of the present invention will perform welding repair on the repaired part, and at the same time, the percussion hammer moves with the welding gun head to perform percussion to eliminate stress after welding. After the slider moves one circle in the moving channel, the welding will be completed, and at the same time, the percussion is also completed once, but the welding can be terminated later, and the slider continues to move, so that the percussion continues to be performed to continuously eliminate stress.

Description

Technical Field

[0001] The invention relates to the technical field of stress elimination, and in particular to a stress elimination device for mold repairing. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to make molded objects. Such tools are composed of various parts, and different molds are composed of different parts. Molds are easily contaminated, rusted, and damaged by bumps during use and production. In order to ensure the normal use of molds, molds need to be repaired, and usually repaired in the direction of welding. At the same time, during the welding repair process, stress will be generated in the mold. If the stress is not eliminated in time, it will affect the subsequent use of the mold. Stress elimination is usually carried out by vibration and knocking.

[0003] In the existing process of repairing the mold through welding, the elimination of stress usually needs to be carried out under high temperature. If the workpiece is knocked after the temperature drops too much, it is easy to cause cracks and other problems in the workpiece. The existing repair and stress elimination devices are usually set separately. The staff first performs welding repair, and then moves the workpiece to the stress elimination device, and uses a knocking hammer to hammer it to eliminate the stress. However, this repair process not only requires the staff to perform pre-welding work, but also requires the workpiece to be moved afterwards, which makes the entire repair process more troublesome and inconvenient. Summary of the invention

[0004] The object of the present invention is to provide a stress relieving device for mold repairing to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stress elimination device for mold repair, comprising a workbench, an outer mold and an inner mold, and also comprising: an inner plate, which is arranged above the inner mold, and a ring is rotatably installed on the outer surface of the inner plate; an inner frame, which forms a moving channel with the inner plate; a slider, which is slidably installed in the moving channel, a sleeve is inserted into the interior of the slider, and a welding gun head is installed inside the sleeve; a knocking hammer, which is arranged on one side of the welding gun head, and moves synchronously with the welding gun head, and adaptively moves along the corner angle to knock at the corner of the inner mold; a follower frame, which is installed on the sleeve, and moves with the sleeve to push the sleeve, and adaptively rotates at the corner to facilitate pushing the sleeve.

[0006] Preferably, a bracket is fixedly mounted on the side wall of the workbench, the bottom end of the bracket is fixedly connected to the inner plate, and the other end of the bracket bypasses one side of the inner tube and is fixedly connected to the inner frame.

[0007] Preferably, a servo motor is fixedly mounted on the bracket, a disc is fixedly mounted on the output end of the servo motor, and the surface of the disc is in contact with the inner wall of the ring.

[0008] Preferably, a side block is fixedly mounted on the collar, a sliding column is inserted on the side block, and the follower frame is fixedly mounted on the sliding column;

[0009] The side block is fixedly mounted with an inserting strip, the surface of the sliding column is provided with a spiral groove, the inserting strip is inserted in the spiral groove, and the top of the sliding column is fixedly mounted with a top block.

[0010] Preferably, a fluctuation ring is provided above the top block;

[0011] A first spring is fixedly mounted on the inner bottom wall of the side block, and a contact plate is fixedly mounted on the first spring;

[0012] The fluctuation ring is provided with a first displacement point and a second displacement point;

[0013] At the first displacement, the bottom side of the wave ring is lowered, and when the top block approaches, it will press the top block down so that it drives the sliding column down;

[0014] At the second displacement, the bottom side of the wave ring rises in height, and when the top block approaches, the first spring pushes the top block to rise so that the slide column rises.

[0015] Preferably, a limit block is fixedly installed on the sliding block, a round rod is rotatably installed inside the limit block, a sliding tube is vertically slidably installed inside the sleeve, a second spring is fixedly installed on the bottom end of the sliding tube, an arc-shaped protrusion is fixedly installed on one end of the round rod located inside the sleeve, a connecting block is fixedly installed on the surface of the sliding tube, a second rotating ring is rotatably installed on the sleeve, a follower ring is vertically slidably installed inside the second rotating ring, the connecting block is inserted in the follower ring, a connecting strip is fixedly installed on the follower ring, and the connecting strip is fixedly connected to the knocking hammer;

[0016] A connecting rod is fixedly mounted on the second rotating ring, a connecting ring is fixedly mounted on the connecting rod, and the striking hammer is slidably mounted in the connecting ring.

[0017] Preferably, a first rotating ring is rotatably mounted on the sleeve, a fixing plate is fixedly mounted on the sleeve, a round wheel is rotatably mounted on the fixing plate, and a displacement ring is fixedly mounted on the connecting rod;

[0018] A friction plate is fixedly mounted on the bottom end of the inner plate.

[0019] Preferably, a through hole is provided on the connecting ring, and the connecting strip passes through the through hole.

[0020] Preferably, an annular groove is provided on the inner wall of the follower ring, and the connecting block is inserted into the annular groove.

[0021] Preferably, the fixing plate is arranged between the first swivel and the second swivel.

[0022] In the above technical scheme, the present invention provides a stress elimination device for mold repair, which has the following beneficial effects: after placing the outer mold and the inner mold on the workbench, start the servo motor, and as the servo motor is started, it will drive the disc to rotate, and at this time the disc will drive the ring to rotate, and as the ring rotates, it will drive the follower frame to move, and at this time the follower frame will drive the sleeve to move, and the sleeve will move in the moving channel through the slider, and at this time the welding gun head in the sleeve will perform welding repair on the repaired part, and at the same time the tapping hammer follows the welding gun head to perform tapping to eliminate stress after welding, and after the slider moves one circle in the moving channel, the welding will be completed, and at the same time the tapping is also completed, but the welding can be terminated subsequently, and the slider continues to move, so that the tapping continues to eliminate stress continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the bottom structure of an inner plate provided in an embodiment of the present invention;

[0026] Figure 3 The embodiment of the present invention provides Figure 1 Schematic diagram of some structures;

[0027] Figure 4 A schematic diagram of a portion of the structure of an inner plate provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of a portion of the structure of a sliding column provided in an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of a portion of the structure of an inner plate provided in an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of a portion of the structure of a sleeve provided in an embodiment of the present invention;

[0031] Figure 8A schematic diagram of a portion of the structure of a slider provided in an embodiment of the present invention;

[0032] Fig. 9 A partial structural schematic diagram of a sliding tube provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Workbench; 2. Limit frame; 3. Outer mold; 4. Inner mold; 51. Bracket; 52. Inner plate; 53. Inner frame; 53.1. First slide groove; 53.2. Second slide groove; 54. Ring; 55. Side block; 56. Sliding column; 57. Top block; 58. Follow-up frame; 59. Contact plate; 510. First spring; 511. Insert strip; 512. Fluctuation ring; 512.1. First displacement point; 512.2. Second displacement point; 61. Sliding block ; 62. sleeve; 63. welding gun head; 64. limit block; 65. round rod; 65.1. bump; 66. first swivel; 67. round wheel; 68. second swivel; 69. displacement ring; 610. connecting rod; 611. connecting ring; 612. knock hammer; 613. fixed plate; 71. sliding tube; 72. second spring; 73. follower ring; 74. connecting block; 75. connecting strip; 81. servo motor; 82. disc; 83. friction plate. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] See also Figure 1-9 , a stress relieving device for mold repair, comprising a workbench 1, an outer mold 3 and an inner mold 4, and also comprising:

[0037] An inner plate 52 is arranged above the inner mold 4, and a collar 54 is rotatably mounted on the outer surface of the inner plate 52;

[0038] An inner frame 53, which forms a moving passage with the inner plate 52;

[0039] A slider 61 is slidably mounted in the moving channel, a sleeve 62 is inserted into the slider 61, and a welding gun head 63 is installed in the sleeve 62;

[0040] A striking hammer 612 is arranged on one side of the welding gun head 63 and moves synchronously with the welding gun head 63, and strikes along the corner angle at the corner of the inner mold 4 in an adaptive manner;

[0041] A follower frame 58, which is mounted on the collar 54 and moves with the collar 54 to push the sleeve 62, and adaptively rotates at the corner to facilitate pushing the sleeve 62;

[0042] A limit frame 2 is fixedly installed on the workbench 1, and the outer mold 3 can be limited by the limit frame 2 to facilitate subsequent repair.

[0043] In another embodiment of the present invention: a bracket 51 is fixedly installed on the side wall of the workbench 1, the bottom end of the bracket 51 is fixedly connected to the inner plate 52, and the other end of the bracket 51 is passed around one side of the inner tube and fixedly connected to the inner frame 53;

[0044] The bracket 51 is U-shaped and is placed horizontally on one side of the inner plate 52 to fix the inner plate 52 and the inner frame 53 together. At the same time, the bottom of the bracket 51 is fixedly connected to the side wall of the workbench 1.

[0045] In another embodiment of the present invention: a servo motor 81 is fixedly mounted on the bracket 51, a disc 82 is fixedly mounted on the output end of the servo motor 81, and the surface of the disc 82 is in contact with the inner wall of the collar 54;

[0046] The servo motor 81 is started to drive the disc 82 to rotate, and the surface of the disc 82 will contact the inner wall of the ring 54, so when the disc 82 rotates, the ring 54 will be driven to rotate;

[0047] Furthermore, a plurality of tooth blocks may be provided on the disk 82, and a plurality of tooth grooves may be provided on the inner wall of the collar 54, so that the tooth blocks on the disk 82 are meshed with the tooth grooves on the inner wall of the collar 54, thereby making it easier for the disk 82 to rotate and drive the collar 54 to rotate.

[0048] In another embodiment of the present invention: a side block 55 is fixedly mounted on the collar 54, a slide post 56 is inserted on the side block 55, and a follower frame 58 is fixedly mounted on the slide post 56;

[0049] The side block 55 is fixedly mounted with an insert 511, the surface of the slide post 56 is provided with a spiral groove, the insert 511 is inserted into the spiral groove, and the top of the slide post 56 is fixedly mounted with a top block 57;

[0050] When the collar 54 rotates, it will drive the side block 55 to move, and the slide post 56 on the side block 55 will move with it. At this time, the follower frame 58 will move with the collar 54 through the side block 55, and the vertical pitch of the spiral groove is set to be long so that the contact of the follower frame 58 with the sleeve 62 will not drive the slide post 56 to rotate randomly. Therefore, when the side block 55 drives the slide post 56 and the follower frame 58 to move, the inner wall of the follower frame 58 will fit in the sleeve 62, so that the sleeve 62 moves with it, and the sleeve 62 will move in the moving channel.

[0051] The slider 61 is a square slide, so when the slider 61 slides to the corner of the moving channel, it can continue to turn and slide under the push of the follower frame 58.

[0052] In another embodiment of the present invention: a fluctuation ring 512 is disposed above the top block 57;

[0053] A first spring 510 is fixedly mounted on the inner bottom wall of the side block 55, and a contact plate 59 is fixedly mounted on the first spring 510;

[0054] The fluctuation ring 512 is provided with a first displacement point 512.1 and a second displacement point 512.2;

[0055] At the first displacement position 512.1, the bottom side height of the wave ring 512 decreases, and when the top block 57 approaches, it will press the top block 57 down so that it drives the slide column 56 down;

[0056] At the second displacement position 512.2, the bottom side of the fluctuation ring 512 rises in height, and when the top block 57 approaches, the first spring 510 pushes the top block 57 to rise so that the slide column 56 rises;

[0057] The wave ring 512 is fixedly mounted on the bracket 51, and the collar 54 rotates counterclockwise to drive the top block 57 to move to the first displacement position 512.1. As the top block 57 is pressed and descends, it drives the slide post 56 to descend. When the slide post 56 descends, the spiral groove on its surface is affected by the insert 511, causing the slide post 56 to rotate while descending. Figure 6 , the follower frame 58 will rotate clockwise, and the dotted line above indicates the position of the follower frame 58 before the rotation. Under normal conditions, when the follower frame 58 rotates with the sleeve 54, its center line position always points to the center of the circle. Therefore, when the follower frame 58 moves counterclockwise to drive the sleeve 62 close to the corner of the moving channel, the angle between the inner wall of the follower frame 58 and the sleeve 62 is large, so that it is not easy for the follower frame 58 to push the sleeve 62 to continue to move. Therefore, at the first displacement position 512.1, the follower frame 58 will rotate clockwise to reduce the angle between it and the sleeve 62, so that the follower frame 5 When the sleeve 62 is rotated to the corner position (upper left corner), it is easier to push the sleeve 62 to move, and the sleeve 62 is reset after moving to the corner position. At the same time, the follower frame 58 continues to move to drive the sleeve 62 to move until it reaches the lower left corner. At this time, it reaches the second displacement position 512.2. At this time, the first spring 510 pushes the contact plate 59 to rise. The rise of the contact plate 59 will drive the sliding column 56 to rise. At this time, the spiral groove and the insert strip 511 are used to make the follower frame 58 rotate counterclockwise, so that the follower frame 58 can more easily push the sleeve 62 to slide to the long channel below the moving channel at the lower left corner position;

[0058] A rounded corner is provided on the top of the top block 57 so that the top block 57 and the bottom side of the wave ring 512 can contact more smoothly.

[0059] In another embodiment of the present invention: a limit block 64 is fixedly installed on the slider 61, a round rod 65 is rotatably installed inside the limit block 64, a sliding tube 71 is vertically slidably installed inside the sleeve 62, a second spring 72 is fixedly installed on the bottom end of the sliding tube 71, an arc-shaped protrusion 65.1 is fixedly installed on one end of the round rod 65 located inside the sleeve 62, a connecting block 74 is fixedly installed on the surface of the sliding tube 71, a second rotating ring 68 is rotatably installed on the sleeve 62, a follower ring 73 is vertically slidably installed inside the second rotating ring 68, the connecting block 74 is inserted in the follower ring 73, a connecting strip 75 is fixedly installed on the follower ring 73, and the connecting strip 75 is fixedly connected to the knocking hammer 612;

[0060] The second rotating ring 68 is rotatably mounted on the sleeve 62, and a connecting rod 610 is fixedly mounted on the second rotating ring 68, a connecting ring 611 is fixedly mounted on the connecting rod 610, and a striking hammer 612 is slidably mounted in the connecting ring 611;

[0061] The surface of the inner frame 53 is provided with a first slide groove 53.1 which is matched with the size of the limit block 64, and the first slide groove 53.1 is provided with a second slide groove 53.2. The cooperation between the limit block 64 and the first slide groove 53.1 can make the slider 61 move horizontally. At this time, the round rod 65 is inserted into the second slide groove 53.2, but the round rod 65 only contacts the inner top wall or the inner bottom wall of the second slide groove 53.2, so that when the slider 61 moves, the round rod 65 contacts one surface of the second slide groove 53.2 to rotate. When the round rod 65 rotates, the round rod 65 will drive the protrusion 65.1 to rotate. When the protrusion 65.1 rotates to the bottom, it will contact the slide tube 71. The upper contact presses down the slide tube 71, and the slide tube 71 will move downward to squeeze the second spring 72, and as the protrusion 65.1 moves upward, the second spring 72 will push the slide tube 71 upward to reset. Therefore, while the follower frame 58 drives the slider 61 to move, the round rod 65 will rotate synchronously to drive the slide tube 71 to move up and down. As the slide tube 71 moves up and down, it will drive the connecting block 74 to move up and down. At this time, the connecting block 74 will drive the follower ring 73 to move up and down through the annular groove, and the follower ring 73 will drive the knocking hammer 612 to move up and down through the connecting strip 75, so that the knocking hammer 612 knocks the welding repair part between the inner mold 4 and the outer mold 3 to eliminate residual stress.

[0062] When the slider 61 moves in the moving channel, only one side of the round rod 65 is in contact with the inner frame 53 , while the other round rods 65 are in a free state and are not in contact with the inner plate 52 and the inner frame 53 .

[0063] In another embodiment of the present invention: a first rotating ring 66 is rotatably mounted on the sleeve 62, a fixing plate 613 is fixedly mounted on the sleeve 62, a round wheel 67 is rotatably mounted on the fixing plate 613, and a displacement ring 69 is fixedly mounted on the connecting rod 610;

[0064] A friction plate 83 is fixedly mounted on the bottom end of the inner plate 52;

[0065] The displacement ring 69 is coaxially arranged with the first rotating ring 66 and the second rotating ring 68;

[0066] refer to Figure 6 When the collar 54 rotates counterclockwise, the slider 61 will move counterclockwise in the moving channel until the slider 61 moves to the upper left corner. At this time, the first rotating ring 66 and the friction plate 83 are in contact. Then the slider 61 continues to move. As the slider 61 moves, the first rotating ring 66 and the friction plate 83 will rotate after contacting. As the first rotating ring 66 rotates, it will drive the round wheel 67 to rotate. At this time, the round wheel 67 will drive the displacement ring 69 to rotate. When the slider 61 moves down at the upper left corner, the first rotating ring 66 will rotate clockwise with the help of the friction plate 83. At this time, the first rotating ring 66 passes through the round wheel 6 7 drives the displacement ring 69 to rotate in the opposite direction, and the displacement ring 69 drives the connecting rod 610 and the second rotating ring 68 to rotate, and the percussion hammer 612 rotates counterclockwise at this time, and the welding gun head 63 still moves toward the right-angle weld between the outer mold 3 and the inner mold 4, and the welding rod can be placed at the weld to facilitate welding, and at this time, as the percussion hammer 612 rotates counterclockwise on the surface of the welding gun head 63, it will continue to maintain a relatively horizontal movement along the upper horizontal weld and will not move downward with the welding gun head 63, so that the percussion hammer 612 taps the right-angle weld to eliminate stress;

[0067] The displacement ring 69 is sleeved on the welding gun head 63, so that the debris generated by welding is covered and does not splash around.

[0068] In another embodiment of the present invention: a through hole is formed on the connecting ring 611, and the connecting strip 75 passes through the through hole;

[0069] The width of the through hole is matched with the width of the connecting strip 75 , so that the connecting strip 75 can pass through the connecting ring 611 and be connected to the striking hammer 612 . Meanwhile, the connecting strip 75 can move up and down in the through hole to drive the striking hammer 612 to strike.

[0070] In another embodiment of the present invention: an annular groove is formed on the inner wall of the follower ring 73, and the connecting block 74 is inserted into the annular groove;

[0071] The height dimension of the annular groove is matched with the height dimension of the connecting block 74, so that the follower ring 73 can rotate along with the second rotating ring 68 without interfering with the connecting block 74, and at the same time, the up and down movement of the connecting block 74 can drive the follower ring 73 to move up and down through the annular groove.

[0072] In another embodiment of the present invention: the fixing plate 613 is disposed between the first rotating ring 66 and the second rotating ring 68;

[0073] The height of the first rotating ring 66 is higher than the circular wheel 67 , the displacement ring 69 and the connecting ring 611 , so that the first rotating ring 66 can contact with the friction plate 83 at each position.

[0074] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stress relieving device for mold repair, comprising a workbench (1), an outer mold (3) and an inner mold (4), characterized in that: Also includes: An inner plate (52) is arranged above the inner mold (4), and a collar (54) is rotatably mounted on the outer surface of the inner plate (52); An inner frame (53) forming a moving passage with the inner plate (52); A slider (61) is slidably mounted in the moving channel, a sleeve (62) is inserted into the interior of the slider (61), and a welding gun head (63) is installed inside the sleeve (62); A striking hammer (612) is arranged on one side of the welding gun head (63), moves synchronously with the welding gun head (63), and strikes the inner mold (4) at a corner by moving along the corner angle in an adaptive manner; A follower frame (58), which is mounted on the collar (54) and moves with the collar (54) to push the sleeve (62), and adaptively rotates at a corner to facilitate pushing the sleeve (62); A side block (55) is fixedly mounted on the collar (54), a sliding column (56) is inserted into the side block (55), and the follower frame (58) is fixedly mounted on the sliding column (56); An insert strip (511) is fixedly mounted on the side block (55), a spiral groove is formed on the surface of the slide column (56), the insert strip (511) is inserted into the spiral groove, and a top block (57) is fixedly mounted on the top end of the slide column (56); A fluctuation ring (512) is arranged above the top block (57); A first spring (510) is fixedly mounted on the inner bottom wall of the side block (55), and a contact plate (59) is fixedly mounted on the first spring (510); The fluctuation ring (512) is provided with a first displacement point (512.1) and a second displacement point (512.2); At the first displacement position (512.1), the bottom side height of the wave ring (512) decreases, and when the top block (57) approaches, it presses the top block (57) to descend, so that it drives the sliding column (56) to descend; At the second displacement position (512.2), the bottom side of the fluctuation ring (512) rises in height, and when the top block (57) approaches, the first spring (510) pushes the top block (57) to rise, thereby causing the slide column (56) to rise; A limit block (64) is fixedly mounted on the slider (61), a round rod (65) is rotatably mounted inside the limit block (64), a sliding tube (71) is vertically slidably mounted inside the sleeve (62), a second spring (72) is fixedly mounted on the bottom end of the sliding tube (71), an arc-shaped protrusion (65.1) is fixedly mounted on one end of the round rod (65) located inside the sleeve (62), a connecting block (74) is fixedly mounted on the surface of the sliding tube (71), a second rotating ring (68) is rotatably mounted on the sleeve (62), a follower ring (73) is vertically slidably mounted inside the second rotating ring (68), the connecting block (74) is inserted into the follower ring (73), a connecting strip (75) is fixedly mounted on the follower ring (73), and the connecting strip (75) is fixedly connected to the striking hammer (612); A connecting rod (610) is fixedly mounted on the second rotating ring (68), a connecting ring (611) is fixedly mounted on the connecting rod (610), and the striking hammer (612) is slidably mounted in the connecting ring (611); A first rotating ring (66) is rotatably mounted on the sleeve (62), a fixing plate (613) is fixedly mounted on the sleeve (62), a round wheel (67) is rotatably mounted on the fixing plate (613), and a displacement ring (69) is fixedly mounted on the connecting rod (610); A friction plate (83) is fixedly mounted on the bottom end of the inner plate (52).

2. A stress relieving device for mold repair according to claim 1, characterized in that: A bracket (51) is fixedly mounted on the side wall of the workbench (1); the bottom end of the bracket (51) is fixedly connected to the inner plate (52); the other end of the bracket (51) passes around one side of the inner tube and is fixedly connected to the inner frame (53).

3. A stress relieving device for mold repair according to claim 2, characterized in that: A servo motor (81) is fixedly mounted on the bracket (51), and a disc (82) is fixedly mounted on the output end of the servo motor (81), wherein the surface of the disc (82) is in contact with the inner wall of the collar (54).

4. A stress relieving device for mold repair according to claim 1, characterized in that: The connecting ring (611) is provided with a through hole, and the connecting strip (75) passes through the through hole.

5. A stress relieving device for mold repair according to claim 1, characterized in that: The inner wall of the follower ring (73) is provided with an annular groove, and the connecting block (74) is inserted into the annular groove.

6. A stress relieving device for mold repair according to claim 1, characterized in that: The fixing plate (613) is arranged between the first rotating ring (66) and the second rotating ring (68).

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