A trimming device for forging a valve body

Abstract

This invention discloses a trimming device for forging valve bodies, relating to the field of valve body trimming technology. It includes a base plate with a support rod fixedly connected to its lower side. A discharge hole is formed in the center of the base plate. A trimming unit and a placement unit are arranged on the upper side of the base plate, with the placement unit located in front of the trimming unit. A collection box is fixedly connected to the lower side of the base plate, and a guide plate is fixedly connected to the inner side of the collection box. The placement unit includes two fixing blocks, which are fixedly connected to the upper side of the base plate. A rotating shaft is rotatably connected to the outer side of each fixing block. This trimming device for forging valve bodies uses a hydraulic cylinder to control the downward descent of a rotating trimming roller, facilitating trimming of the valve body. After trimming, the trimming roller is controlled to rise, causing the rotating box to flip over, thus flipping the valve body on the fixture and allowing residual metal debris to fall off, preventing it from affecting subsequent machining accuracy.

Description

Technical Field

[0001] This invention relates to the field of valve body trimming technology, specifically to a trimming device for forging a forged valve body. Background Technology

[0002] The valve body is a pressure-bearing shell that is directly connected to the pipeline (or equipment) and houses the internal components of the valve (such as the valve disc, valve seat, valve stem, etc.). It is the external body of the valve and has internal fluid passages.

[0003] A search revealed a Chinese patent with application number "CN202520778899.3", which specifically describes a trimming device for valve body processing. The device includes a base with a support frame mounted on it. A screw drive structure is mounted on the support frame, and a sliding plate is mounted on the screw drive structure. A fixed frame is located at the bottom of the sliding plate. A motor is mounted on the fixed frame, and its output end is connected to a trimming wheel. A feeding mechanism is mounted on the base and has a three-jaw chuck to fix the valve body. A baffle unit is mounted at the bottom of the fixed frame and includes a main ring consisting of an outer ring sleeve mounted on the fixed frame and an inner ring threadedly connected to the outer ring sleeve. At least three sets of support beams are hinged to the outer ring sleeve, and a torsion spring is provided at the connection between the support beams and the outer ring sleeve. A baffle cloth is mounted around the outside of the support beams.

[0004] In existing methods, when trimming the burrs inside the valve body's inlet and outlet, a rotating trimming wheel is used to grind the burrs. The trimming wheel is located above the valve body, which makes it easy for the metal shavings generated during trimming to fall into the valve body. The residual metal shavings can scratch the internal flow channels of the valve body during subsequent processing, affecting the sealing performance. This requires workers to clean them, increasing their workload.

[0005] Therefore, the present invention proposes a trimming device for forging valve bodies to solve the aforementioned problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a trimming device for forging valve bodies, which solves the problem that metal shavings easily fall into the valve body after trimming, affecting the subsequent quality of the valve body.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A forging trimming device for forging valve bodies includes a base plate, a support rod fixedly connected to the lower side of the base plate, a discharge hole in the middle of the base plate, a trimming unit and a placement unit on the upper side of the base plate, the placement unit being located in front of the trimming unit, a collection box fixedly connected to the lower side of the base plate, a guide plate fixedly connected to the inner side of the collection box, and the placement unit including two fixing blocks fixedly connected to the upper side of the base plate. A rotating shaft is rotatably connected to the outer side of each fixing block, and a rotating box is fixedly connected between the two rotating shafts. A reciprocating rod is provided on the outer side of the rotating box, a placement plate is fixedly connected to the upper end of the reciprocating rod, and a clamp is fixedly connected to the upper side of the placement plate.

[0008] Preferably, the trimming unit includes a fixing frame, which is fixedly connected to the upper side of the base plate. A hydraulic cylinder is fixedly connected to the upper side of the fixing frame, and a lifting frame is fixedly connected to the lower side of the hydraulic cylinder. A rotating tube is rotatably connected to the lower side of the lifting frame, and an installation cylinder is fixedly connected to the lower end of the rotating tube. A trimming roller is provided on the lower side of the installation cylinder.

[0009] Preferably, a motor is fixedly connected to the inner side of the lifting frame, a gear component three is fixedly connected to the output end of the motor, and a gear component two that meshes with the gear component three is fixedly connected to the outer side of the rotating tube.

[0010] Preferably, a worm gear is fixedly connected to the outer side of the rotating shaft, a mounting box is fixedly connected to the outer side of the fixed block, a worm gear meshing with the worm gear is rotatably connected to the inner side of the mounting box, a rotating rod is fixedly connected to the rear end of the worm gear, a gear component is fixedly connected to the rear end of the rotating rod, two rear blocks are fixedly connected to the rear side of the base plate, a sliding rod is fixedly connected between the two rear blocks, a bottom block is provided on the outer side of the sliding rod, and a toothed plate meshing with the gear component is fixedly connected to the upper side of the bottom block.

[0011] Preferably, the bottom block is slidably connected to the slide rod, a spring is fixedly connected between the bottom block and the rear block, a lifting groove is provided on the rear side of the fixing frame, a lifting block is slidably connected to the inner side of the lifting groove, an inclined plate is rotatably connected to the rear side of the lifting block, the inclined plate is rotatably connected to the toothed plate, a lifting plate is fixedly connected to the upper side of the lifting block, a contact plate is fixedly connected to the upper side of the lifting plate, and a through hole is provided on the outer side of the fixing frame.

[0012] Preferably, the lifting frame is located below the contact plate, a rear cover is fixedly connected to the rear side of the fixing frame, the lifting plate is slidably connected to the rear cover, and the toothed plate is located below the gear component.

[0013] Preferably, a reciprocating plate is fixedly connected to the lower end of the reciprocating rod, a control rod is rotatably connected to the inner side of the rotating box, a cam is fixedly connected to the middle of the control rod, a spring three is fixedly connected between the placement plate and the rotating box, the cam is located above the reciprocating plate, a bevel gear one is fixedly connected to the front end of the control rod, a front cover is fixedly connected to the front side of the rotating box, a side rod is rotatably connected to the outer side of the front cover, a bevel gear two that meshes with bevel gear one is fixedly connected to the right end of the side rod, a gear component four is fixedly connected to the left end of the side rod, a stabilizing plate is fixedly connected to the upper side of the base plate, an L-shaped plate is fixedly connected to the upper side of the stabilizing plate, a half-tooth ring is fixedly connected to the lower side of the L-shaped plate, a connecting rod is rotatably connected to the left side of the front cover, a gear component five that meshes with gear component four is fixedly connected to the outer side of the connecting rod, and gear component five meshes with the half-tooth ring.

[0014] Preferably, an impact rod is provided on the outer side of the lifting frame, the lower end of the impact rod is located inside the mounting cylinder, the upper end of the impact rod has a top groove, a linkage plate is rotatably connected to the inner side of the top groove, a connecting groove is provided on the outer side of the linkage plate, a rotating block is rotatably connected to the inner side of the connecting groove, a moving rod is fixedly connected to the right side of the rotating block, a spring is fixedly connected between the rotating block and the lifting frame, a contact wheel is provided on the right end of the moving rod, a mounting plate is fixedly connected to the lower side of the fixing frame, a plurality of protrusions are fixedly connected to the left side of the mounting plate, the contact wheel abuts against the protrusions, and the moving rod and the impact rod are slidably connected to the lifting frame.

[0015] This invention provides a trimming device for forging valve bodies. Compared with the prior art, it has the following advantages: (1) The forging trimming device for the forged valve body controls the rotating trimming roller to descend via a hydraulic cylinder, which facilitates trimming of the valve body. After trimming, the trimming roller is controlled to rise, and the turntable is controlled to flip over, so that the valve body on the fixture is flipped over, and the residual metal debris in the valve body falls off, thus avoiding the residual metal debris from affecting the subsequent machining accuracy.

[0016] (2) The forging trimming device for the forged valve body is equipped with a rotating box, a reciprocating plate and a half-tooth ring, which facilitates the repeated control of the valve body shaking during the valve body flipping process, so that the metal shavings remaining in the valve body fall off quickly, further improving the cleaning effect.

[0017] (3) The forging trimming device for the forging valve body controls the lifting frame to move the contact wheel left and right repeatedly during the rising process, and controls the impact rod to move up and down repeatedly, so that the impact rod repeatedly impacts the mounting cylinder, and the resulting vibration is transmitted to the surface of the trimming roller, causing the metal debris adhering to the surface of the trimming roller to fall off quickly. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural diagram of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a partial three-dimensional structural diagram of the trimming unit in this invention; Figure 5 This is a three-dimensional cross-sectional view of the impact rod in this invention; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 This is a cross-sectional perspective view of the placement unit in this invention; Figure 8 for Figure 7 Enlarged view of point C in the middle; Figure 9 This is a three-dimensional structural diagram of the placement plate in this invention; Figure 10 for Figure 9 Enlarged view of point D in the middle.

[0019] In the diagram: 1. Base plate; 2. Support rod; 3. Discharge hole; 4. Collection box; 5. Guide plate; 6. Trimming unit; 7. Placement unit; 8. Rear cover; 61. Fixing frame; 62. Hydraulic cylinder; 63. Perforation; 64. Lifting groove; 65. Lifting block; 66. Lifting plate; 67. Inclined plate; 68. Toothed plate; 69. Base block; 610. Rear block; 611. Slide rod; 612. Spring 1; 613. Gear 1; 614. Rotating rod; 615. Worm gear; 616. Contact plate; 617. Lifting frame; 618. Rotating tube; 619. Mounting cylinder; 620. Trimming roller; 621. Gear 2; 622. Motor; 623. Gear 3; 624. Impact rod; 625. 626. Top groove; 627. Linkage plate; 628. Connecting groove; 629. Rotating block; 630. Moving rod; 631. Spring II; 632. Contact wheel; 633. Mounting plate; 634. Protrusion; 75. Fixing block; 76. Rotating shaft; 77. Rotating box; 78. Reciprocating rod; 79. Placement plate; 70. Fixture; 710. Spring III; 711. Reciprocating plate; 722. Control rod; 713. Cam; 714. Half gear ring; 715. Worm gear; 716. Mounting box; 717. Front cover; 718. Bevel gear I; 719. Bevel gear II; 720. Side rod; 711. Gear component IV; 721. Connecting rod; 722. Gear component V; 723. Stabilizing plate; 724. L-shaped plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention provides the following technical solutions: Example 1 Please see Figure 1 - Figure 10 A forging trimming device for forging valve bodies includes a base plate 1, a support rod 2 fixedly connected to the lower side of the base plate 1, a discharge hole 3 in the middle of the base plate 1, a trimming unit 6 and a placement unit 7 on the upper side of the base plate 1, the placement unit 7 being located in front of the trimming unit 6, a collection box 4 fixedly connected to the lower side of the base plate 1, a guide plate 5 fixedly connected to the inner side of the collection box 4, the placement unit 7 including two fixing blocks 71, the fixing blocks 71 being fixedly connected to the upper side of the base plate 1, a rotating shaft 72 rotatably connected to the outer side of the fixing blocks 71, a rotating box 73 fixedly connected between the two rotating shafts 72, a reciprocating rod 74 on the outer side of the rotating box 73, a placement plate 75 fixedly connected to the upper end of the reciprocating rod 74, and a clamp 76 fixedly connected to the upper side of the placement plate 75, wherein the clamp 76 clamps the valve body.

[0022] The trimming unit 6 includes a fixing frame 61, which is fixedly connected to the upper side of the base plate 1. A hydraulic cylinder 62 is fixedly connected to the upper side of the fixing frame 61, and a lifting frame 617 is fixedly connected to the lower side of the hydraulic cylinder 62. A rotating tube 618 is rotatably connected to the lower side of the lifting frame 617, and an installation cylinder 619 is fixedly connected to the lower end of the rotating tube 618. A trimming roller 620 is provided on the lower side of the installation cylinder 619. A motor 622 is fixedly connected to the inner side of the lifting frame 617, and a gear component 623 is fixedly connected to the output end of the motor 622. A gear that meshes with the gear component 623 is fixedly connected to the outer side of the rotating tube 618. When wheel component 621 is repairing the inlet of the valve body, the hydraulic cylinder 62 controls the lifting frame 617 to descend, which in turn lowers the trimming roller 620, bringing it into the inlet of the valve body. Simultaneously, the motor 622 is started, which drives gear component 623 to rotate. Gear component 623 then drives gear component 621 to rotate, which in turn drives the rotating tube 618 to rotate. The rotating tube 618 then drives the mounting cylinder 619 to rotate, which in turn drives the trimming roller 620 to rotate, facilitating the trimming roller 620 to grind the burrs inside the inlet.

[0023] A worm gear 712 is fixedly connected to the outer side of the rotating shaft 72. A mounting box 713 is fixedly connected to the outer side of the fixing block 71. A worm 615, which meshes with the worm gear 712, is rotatably connected to the inner side of the mounting box 713. A rotating rod 614 is fixedly connected to the rear end of the worm 615. A gear component 613 is fixedly connected to the rear end of the rotating rod 614. Two rear blocks 610 are fixedly connected to the rear side of the base plate 1. A sliding rod 611 is fixedly connected between the two rear blocks 610. A bottom block 69 is provided on the outer side of the sliding rod 611. A gear component 613 is fixedly connected to the upper side of the bottom block 69. The toothed plate 68 is connected to the base block 69, which is slidably connected to the slide rod 611. A spring 612 is fixedly connected between the base block 69 and the rear block 610. A lifting groove 64 is provided on the rear side of the fixed frame 61. A lifting block 65 is slidably connected to the inner side of the lifting groove 64. An inclined plate 67 is rotatably connected to the rear side of the lifting block 65. The inclined plate 67 is rotatably connected to the toothed plate 68. A lifting plate 66 is fixedly connected to the upper side of the lifting block 65. A contact plate 616 is fixedly connected to the upper side of the lifting plate 66. A through hole 63 is provided on the outer side of the fixed frame 61. The lifting frame 617 is located below the contact plate 616. A rear cover 8 is fixedly connected to the rear side of the fixed frame 61. The lifting plate 66 is slidably connected to the rear cover 8. The toothed plate 68 is located below the gear component 613. After the trimming is completed, the hydraulic cylinder 62 controls the lifting frame 617 to rise. When the lifting frame 617 contacts the contact plate 616, the lifting frame 617 continues to rise. The lifting frame 617 drives the contact plate 616 to rise, the contact plate 616 drives the lifting plate 66 to rise, the lifting plate 66 drives the lifting block 65 to rise, the lifting block 65 drives the inclined plate 67 to rotate, the inclined plate 67 drives the toothed plate 68 to move to the right, and the toothed plate 68 drives the gear... When wheel 613 rotates, gear 613 drives rotating rod 614 to rotate, rotating rod 614 drives worm 615 to rotate, worm 615 drives worm wheel 712 to rotate, worm wheel 712 drives rotating shaft 72 to rotate, rotating shaft 72 drives rotating box 73 to rotate, rotating box 73 drives clamp 76 to flip, which facilitates the flipping of valve body on clamp 76, and facilitates the collection of residual metal debris in valve body into collection box 4 under the action of gravity, so as to avoid the internal metal debris affecting the subsequent processing accuracy. When lifting frame 617 is lowered under the action of spring 612, rotating box 73 returns to its original position.

[0024] A reciprocating plate 78 is fixedly connected to the lower end of the reciprocating rod 74. A control rod 79 is rotatably connected to the inner side of the rotating box 73. A cam 710 is fixedly connected to the middle of the control rod 79. A spring 77 is fixedly connected between the placement plate 75 and the rotating box 73. The cam 710 is located above the reciprocating plate 78. A bevel gear 715 is fixedly connected to the front end of the control rod 79. A front cover 714 is fixedly connected to the front side of the rotating box 73. A side rod is rotatably connected to the outer side of the front cover 714. 717, a bevel gear 716 is fixedly connected to the right end of the side rod 717 and meshes with bevel gear 715; a gear component 718 is fixedly connected to the left end of the side rod 717; a stabilizing plate 721 is fixedly connected to the upper side of the base plate 1; an L-shaped plate 722 is fixedly connected to the upper side of the stabilizing plate 721; a semi-tooth ring 711 is fixedly connected to the lower side of the L-shaped plate 722; a connecting rod 719 is rotatably connected to the left side of the front cover 714; the outer side of the connecting rod 719 is fixedly connected to... A gear component 720 is fixedly connected to gear component 718 and meshes with gear component 711. Gear component 720 meshes with half gear ring 711. When the rotating box 73 rotates, the rotating box 73 drives the front cover 714 to rotate, and the front cover 714 drives gear component 720 to rotate. Under the action of half gear ring 711, gear component 720 rotates on its own axis. Gear component 720 drives gear component 718 to rotate, gear component 718 drives side rod 717 to rotate, side rod 717 drives bevel gear 716 to rotate, bevel gear 716 drives bevel gear 715 to rotate, bevel gear 715 drives control rod 79 to rotate, control rod 79 drives cam 710 to rotate, cam 710 drives reciprocating plate 78 to move up and down repeatedly, reciprocating plate 78 drives reciprocating rod 74 to move, reciprocating rod 74 drives placement plate 75 to move, placement plate 75 drives clamp 76 to vibrate up and down repeatedly, so as to facilitate the rapid shaking off of residual metal debris.

[0025] Example 2 Based on Example 1, such as Figure 5 , Figure 6As shown, an impact rod 624 is provided on the outer side of the lifting frame 617. The lower end of the impact rod 624 is located inside the mounting cylinder 619. A top groove 625 is provided on the upper end of the impact rod 624. A linkage plate 626 is rotatably connected to the inner side of the top groove 625. A connecting groove 627 is provided on the outer side of the linkage plate 626. A rotating block 628 is rotatably connected to the inner side of the connecting groove 627. A moving rod 629 is fixedly connected to the right side of the rotating block 628. A spring 630 is fixedly connected between the rotating block 628 and the lifting frame 617. A contact wheel 631 is provided on the right end of the moving rod 629. A mounting plate 632 is fixedly connected to the lower side of the fixing frame 61. Multiple protrusions are fixedly connected to the left side of the mounting plate 632. 633, the contact wheel 631 abuts against the protrusion 633, the moving rod 629 and the impact rod 624 are slidably connected to the lifting frame 617. When the lifting frame 617 rises, the lifting frame 617 drives the contact wheel 631 on the moving rod 629 to rise. Under the action of multiple protrusions 633, the contact wheel 631 is controlled to move left and right repeatedly. The contact wheel 631 drives the moving rod 629 to move. The moving rod 629 drives the linkage plate 626 to rotate. The linkage plate 626 drives the impact rod 624 to move up and down repeatedly. The impact rod 624 repeatedly impacts the inside of the mounting cylinder 619, generating vibration. The vibration is transmitted to the surface of the trimming roller 620, causing the metal debris on the surface of the trimming roller 620 to be shaken off.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] Working principle: In use, the valve body is first placed on the clamp 76, which limits the valve body. Then, the hydraulic cylinder 62 is controlled to drive the trimming roller 620 to descend. At the same time, the motor 622 is started to drive the gear component 623 to rotate. Under the action of the gear component 621 and the rotating tube 618, the trimming roller 620 is controlled to rotate, which facilitates the trimming operation of the trimming roller 620 on the water inlet of the valve body. After the trimming is completed, the lifting frame 617 is controlled to rise. When the lifting frame 617 contacts the contact plate 616, the lifting frame 617 is controlled to rise again. The lifting frame 617 drives the contact plate 616 to rise. The lifting plate 66, lifting block 65, inclined plate 67, toothed plate 68, and gear component 613 are all in operation. Under the action of the control rod 614, the worm gear 615 on the control rod 614 rotates. Under the action of the worm wheel 712 and the rotating shaft 72, the control box 73 is flipped, which facilitates the flipping of the valve body. Under the action of gravity, the residual metal debris falls down. At the same time, the rotating box 73 drives the gear component 5 720 on the front cover 714 to rotate. Under the action of the half gear ring 711, the gear component 5 720 is controlled to rotate. Under the action of the gear component 4 718, the side rod 717, the bevel gear 2 716, the bevel gear 1 715, and the control rod 79, the control cam 710 is controlled to rotate. The cam 710 drives the reciprocating plate 78 to move up and down. Under the action of the reciprocating rod 74 and the placement plate 75, the valve body is controlled to shake up and down, improving the cleaning effect.

[0028] As the lifting frame 617 rises, it drives the contact wheel 631 to rise. Under the action of the protrusion 633, the contact wheel 631 is controlled to move back and forth. Under the action of the moving rod 629, the rotating block 628, and the linkage plate 626, the impact rod 624 is controlled to move back and forth up and down, so as to facilitate impact on the mounting cylinder 619. When the vibration is generated, the trimming roller 620 shakes off the adhering metal debris.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A trimming device for forging a valve body for forging, comprising a base plate (1), characterized in that: A support rod (2) is fixedly connected to the lower side of the base plate (1). A discharge hole (3) is opened in the middle of the base plate (1). A trimming unit (6) and a placement unit (7) are provided on the upper side of the base plate (1). The placement unit (7) is located in front of the trimming unit (6). A collection box (4) is fixedly connected to the lower side of the base plate (1). A guide plate (5) is fixedly connected to the inner side of the collection box (4). The placement unit (7) includes two fixing blocks (71). The fixing blocks (71) are fixedly connected to the upper side of the base plate (1). A rotating shaft (72) is rotatably connected to the outer side of the fixing blocks (71). A rotating box (73) is fixedly connected between the two rotating shafts (72). A reciprocating rod (74) is provided on the outer side of the rotating box (73). A placement plate (75) is fixedly connected to the upper end of the reciprocating rod (74). A clamp (76) is fixedly connected to the upper side of the placement plate (75).

2. The trimming device for forging a forged valve body according to claim 1, characterized in that: The trimming unit (6) includes a fixing frame (61), which is fixedly connected to the upper side of the base plate (1). A hydraulic cylinder (62) is fixedly connected to the upper side of the fixing frame (61), and a lifting frame (617) is fixedly connected to the lower side of the hydraulic cylinder (62). A rotating tube (618) is rotatably connected to the lower side of the lifting frame (617), and an installation cylinder (619) is fixedly connected to the lower end of the rotating tube (618). A trimming roller (620) is provided on the lower side of the installation cylinder (619).

3. The trimming device for forging a forged valve body according to claim 2, characterized in that: A motor (622) is fixedly connected to the inner side of the lifting frame (617), and a gear component three (623) is fixedly connected to the output end of the motor (622). A gear component two (621) that meshes with the gear component three (623) is fixedly connected to the outer side of the rotating tube (618).

4. A trimming device for forging a forged valve body according to claim 2, characterized in that: A worm gear (712) is fixedly connected to the outer side of the rotating shaft (72), and a mounting box (713) is fixedly connected to the outer side of the fixed block (71). A worm (615) that meshes with the worm gear (712) is rotatably connected to the inner side of the mounting box (713). A rotating rod (614) is fixedly connected to the rear end of the worm (615). A gear component (613) is fixedly connected to the rear end of the rotating rod (614). Two rear blocks (610) are fixedly connected to the rear side of the base plate (1). A sliding rod (611) is fixedly connected between the two rear blocks (610). A bottom block (69) is provided on the outer side of the sliding rod (611). A toothed plate (68) that meshes with the gear component (613) is fixedly connected to the upper side of the bottom block (69).

5. A trimming device for forging a forged valve body according to claim 4, characterized in that: The bottom block (69) is slidably connected to the slide rod (611), and a spring (612) is fixedly connected between the bottom block (69) and the rear block (610). A lifting groove (64) is provided on the rear side of the fixed frame (61). A lifting block (65) is slidably connected to the inner side of the lifting groove (64). An inclined plate (67) is rotatably connected to the rear side of the lifting block (65). The inclined plate (67) is rotatably connected to the toothed plate (68). A lifting plate (66) is fixedly connected to the upper side of the lifting block (65). A contact plate (616) is fixedly connected to the upper side of the lifting plate (66). A through hole (63) is provided on the outer side of the fixed frame (61).

6. A trimming device for forging a forged valve body according to claim 5, characterized in that: The lifting frame (617) is located below the contact plate (616), the rear cover (8) is fixedly connected to the rear side of the fixing frame (61), the lifting plate (66) is slidably connected to the rear cover (8), and the toothed plate (68) is located below the gear component (613).

7. A trimming device for forging a forged valve body according to claim 1, characterized in that: The lower end of the reciprocating rod (74) is fixedly connected to a reciprocating plate (78). The inner side of the rotating box (73) is rotatably connected to a control rod (79). The middle part of the control rod (79) is fixedly connected to a cam (710). A spring (77) is fixedly connected between the placement plate (75) and the rotating box (73). The cam (710) is located above the reciprocating plate (78). The front end of the control rod (79) is fixedly connected to a bevel gear (715). The front side of the rotating box (73) is fixedly connected to a front cover (714). The outer side of the front cover (714) is rotatably connected to a side rod (717). The right end of the side rod (717) is fixedly connected to a bevel gear. Gear 1 (715) meshes with bevel gear 2 (716), gear 4 (718) is fixedly connected to the left end of the side rod (717), stabilizing plate (721) is fixedly connected to the upper side of the base plate (1), L-shaped plate (722) is fixedly connected to the upper side of the stabilizing plate (721), half-tooth ring (711) is fixedly connected to the lower side of the L-shaped plate (722), connecting rod (719) is rotatably connected to the left side of the front cover (714), gear 5 (720) meshes with gear 4 (718) on the outer side of the connecting rod (719), and gear 5 (720) meshes with half-tooth ring (711).

8. A trimming device for forging a forged valve body according to claim 1, characterized in that: An impact rod (624) is provided on the outer side of the lifting frame (617). The lower end of the impact rod (624) is located inside the mounting cylinder (619). A top groove (625) is provided on the upper end of the impact rod (624). A linkage plate (626) is rotatably connected to the inner side of the top groove (625). A connecting groove (627) is provided on the outer side of the linkage plate (626). A rotating block (628) is rotatably connected to the inner side of the connecting groove (627). A moving rod is fixedly connected to the right side of the rotating block (628). (629) A spring (630) is fixedly connected between the rotating block (628) and the lifting frame (617). A contact wheel (631) is provided at the right end of the moving rod (629). An mounting plate (632) is fixedly connected to the lower side of the fixed frame (61). A plurality of protrusions (633) are fixedly connected to the left side of the mounting plate (632). The contact wheel (631) abuts against the protrusions (633). The moving rod (629) and the impact rod (624) are slidably connected to the lifting frame (617).

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