Flaking machine capable of conveniently adjusting extension amount of blade and used for shaving board production

Abstract

The invention relates to the technical field of shaving equipment, in particular to a shaving board production flaking machine capable of conveniently adjusting the extension amount of a blade, which comprises a base, a console, a machine body, a rotating frame, a transmission box, a knife rest, a shaving knife, an anti-skid plate, a pushing plate, a clamping mechanism, an adjusting mechanism, a braking mechanism and the like. The tool rest assembly can be clamped and fixed through the clamping mechanism, so that part of the device can reduce the load of the adjusting assembly through the action of friction force, the transmission ratio of the adjusting assembly can be amplified in an equal proportion through the adjusting mechanism, and the adjusting precision of the extension amount of a shaving tool is effectively improved; the deformation and damage of components in the adjusting mechanism due to misoperation are effectively avoided, and the convenience, stability and precision of the device are improved.

Description

Technical Field

[0001] This invention relates to the field of particleboard production equipment, specifically a particleboard chipper for which the blade extension is easily adjustable. Background Technology

[0002] Particleboard is a type of engineered wood product made by cutting various branches, small-diameter timber, fast-growing wood, and wood chips into fragments of a certain size, drying them, mixing them with adhesives, hardeners, and waterproofing agents, and then pressing them under specific temperature and pressure. The wood chipper is one of the main machines in the raw material preparation section of particleboard production. Its function is to plane wood chips, bamboo chips, and veneer fragments into shavings of a certain thickness. These shavings serve as the raw material for manufacturing particleboard, and their quality and specifications have a significant impact on the performance of the particleboard.

[0003] During prolonged operation, the blades of a shaving machine will wear down. Once the blades are worn, it will affect the quality of the shavings and production efficiency. However, some existing shaving machines do not offer convenient ways to adjust the blade extension after the blades wear down. Some may require disassembling the entire blade holder assembly for adjustment, which is not only complicated but also may damage the equipment during disassembly, resulting in significant downtime and impacting production schedules.

[0004] The existing device mainly houses a ring-shaped rotating cutter head inside the machine body. Existing technology is largely similar to a ring planer used in particleboard production. The technology disclosed in CN115582899B is similar to a base, with a support fixedly connected to the top of the base, a connecting wall fixedly connected to the top of the support, and a discharge wall fixedly connected to the bottom of the connecting wall. An anti-clogging mechanism is fixedly connected to the middle of the surface of the connecting wall. This ring planer for particleboard production can reduce the problem of wood chip clogging and avoid the problem of poor discharge caused by wood chip clogging. However, there are still areas for optimization in this device.

[0005] Existing devices mainly rely on adjusting components to support the force on the particleboard blades. This makes it difficult for some devices to reduce the load on the adjusting components through friction, leading to excessive stress and damage to some adjusting components. Secondly, some devices mainly use direct-push bolt adjusting components, making it difficult to proportionally increase the transmission ratio of the adjusting components, resulting in low adjustment accuracy in some devices. Finally, some devices have difficulty synchronously braking the transmission components of the adjusting mechanism when clamping the blade holder assembly, causing some components in the adjusting mechanism to be easily deformed and damaged due to misoperation, reducing the working efficiency and practicality of the device. Therefore, in order to solve the above problems, a particleboard chipper for easy adjustment of the blade extension is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a particleboard chipper for easy adjustment of the blade extension, thereby solving the problems mentioned in the background art. Firstly, existing devices mainly rely on adjustment components to support the force on the particleboard blades, making it difficult for some devices to reduce the load on the adjustment components through friction, leading to excessive stress and damage to some adjustment components. Secondly, some devices mainly use direct-push bolt adjustment components, making it difficult to proportionally increase the transmission ratio of the adjustment components, resulting in low adjustment accuracy. Finally, some devices have difficulty synchronously braking the transmission components of the adjustment mechanism when clamping the blade holder assembly, causing components in some adjustment mechanisms to easily deform and be damaged due to misoperation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a particleboard chipper for convenient adjustment of blade extension, comprising a base, a control console fixedly connected to the rear right side of the top of the base, a body fixedly connected to the left side of the top of the base, a rotating frame inside the body, a transmission box fixedly connected to the inner outer ring of the rotating frame, a blade holder slidably connected to the inner left side of the transmission box, a particleboard blade inserted into the left side of the blade holder, the blade holder and the particleboard blade being assembled together by hexagonal bolts, an anti-slip plate fixedly connected to the middle right side of the blade holder, and a push plate fixedly connected to the middle right side of the anti-slip plate; A clamping mechanism is provided above the anti-slip plate. The clamping mechanism includes a pressure plate, which is located above the anti-slip plate. An adjustment mechanism is provided above the push plate. The adjustment mechanism includes symmetrical screws, the rear end of which is movably connected to the rear side of the inner wall of the transmission box. A braking mechanism is provided in the middle of the inside of the transmission box. The braking mechanism includes a support frame, the top of which is fixedly connected to the top middle of the inner wall of the transmission box.

[0008] Preferably, a drive motor is fixedly connected to the middle of the rear side of the machine body, the front end of the output shaft of the drive motor passes through the rear side wall of the machine body and is fixedly connected to a rotating seat, the rear side wall of the rotating frame is sleeved on the front side of the outer wall of the rotating seat, and a fastening stud is threaded into the inner front wall of the rotating frame.

[0009] Preferably, an anti-slip pad is fixedly connected to the bottom center of the pressure plate, the bottom of the anti-slip pad can be tightly attached to the top of the anti-slip plate, and telescopic cylinders are fixedly connected to both sides of the bottom of the pressure plate, with the bottom end of the telescopic cylinders fixedly connected to the bottom of the inner wall of the transmission box.

[0010] Preferably, a return spring is fixedly connected to the bottom of the pressure plate on the outer ring of the telescopic cylinder, and the bottom end of the return spring is fixedly connected to the bottom of the inner wall of the transmission box.

[0011] Preferably, a wedge-shaped pressure block is fixedly connected to the top center of the pressure plate, a wedge-shaped push block is slidably attached to the top of the wedge-shaped pressure block, a limiting frame is sleeved on the outer wall of the wedge-shaped push block, and the top of the limiting frame is fixedly connected to the top left side of the inner wall of the transmission box.

[0012] Preferably, a pusher cylinder is fixedly connected to the front middle of the wedge-shaped pusher block, and a transmission screw is threaded into the front side of the inner wall of the pusher cylinder. The front end of the transmission screw passes through the transmission box and is fixedly connected to a first twist cap.

[0013] Preferably, the front end of the symmetrical screw passes through the transmission box and is fixedly connected to a second torsion cap. Adjusting sleeves are threaded on both sides of the outer wall of the symmetrical screw. A sliding frame is fixedly connected to the lower part of the outer wall of the adjusting sleeve. The rear side of the sliding frame is slidably connected to the right side of the inner wall of the transmission box.

[0014] Preferably, a slider is fixedly connected to the bottom of the sliding frame, the slider is in the shape of a slanted straight strip, and the inside of the push plate is provided with a groove corresponding to the slider.

[0015] Preferably, sliding rods are inserted into the upper and lower sides inside the support frame, a brake clip is fixedly connected to the right end of the sliding rod, a brake wheel is attached to the right side of the brake clip, and the inner wall of the brake wheel is fixedly connected to the middle of the outer wall of the symmetrical screw. A tension spring is fixedly connected to the left side of the brake clip on the outer ring of the sliding rod, and the left end of the tension spring is fixedly connected to the right side of the support frame.

[0016] Preferably, the left end of the sliding rod passes through the support frame and is fixedly connected to a brake push block, the left side of the brake push block is fitted with a brake pressure block, the left side of the brake pressure block is fixedly connected to a linkage frame, and the bottom left side of the linkage frame is fixedly connected to the middle right side of the pressure plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The invention uses a clamping mechanism with a pressure plate and an anti-slip pad to hold and fix the anti-slip plate, allowing some parts of the device to reduce the load on the adjustment components through friction, thereby improving the stability of the shaving blade in its working state.

[0018] This invention, by adjusting the tilt of the slider and groove in the adjustment mechanism, enables the adjustment mechanism to proportionally amplify the transmission ratio of the adjustment components, effectively improving the adjustment accuracy of the shaving blade extension.

[0019] This invention can effectively shorten the overall width of the shaving cutter by adjusting the symmetrical transmission components in the adjustment mechanism, and the parallel-arranged adjustment components are more suitable for ring planers, making it easier to adjust the blade extension.

[0020] This invention uses a brake clamp in the braking mechanism to work with a brake wheel, so that when a part of the device is clamping the anti-slip plate, it can simultaneously brake the transmission components of the adjustment mechanism, effectively preventing the components in the adjustment mechanism from being deformed or damaged due to misoperation. Attached Figure Description

[0021] Figure 1 This is a front side perspective view of the structure of the present invention; Figure 2 This is a top sectional perspective view of a partial structure of the wood chipper of the present invention; Figure 3 This is a top-view perspective view of the structure of the blade holder and shaving blade of the present invention; Figure 4 This is a frontal cross-sectional perspective view of a portion of the transmission box and shaving blade of the present invention; Figure 5 This is a right-side sectional perspective view of a partial structure of the transmission box and clamping mechanism of the present invention; Figure 6 This is a front sectional perspective view of a partial structure of the transmission box and clamping mechanism of the present invention; Figure 7 This is a perspective view of the left side of a partial structure of the transmission box and adjustment mechanism of the present invention; Figure 8 This is a frontal sectional perspective view of a portion of the transmission box and braking mechanism of the present invention.

[0022] In the diagram: 101. Base; 102. Control console; 103. Machine body; 104. Rotating frame; 105. Drive motor; 106. Rotating seat; 107. Fastening stud; 108. Transmission box; 109. Tool holder; 110. Shaving blade; 111. Socket head bolt; 112. Anti-slip plate; 113. Push plate; 2. Clamping mechanism; 201. Pressure plate; 202. Anti-slip pad; 203. Telescopic cylinder; 204. Return spring; 205. Wedge-shaped pressure block; 206. Wedge-shaped push block 207. Limiting frame; 208. Pushing screw; 209. Transmission screw; 210. First twist cap; 3. Adjusting mechanism; 301. Symmetrical screw; 302. Second twist cap; 303. Adjusting screw sleeve; 304. Sliding frame; 305. Sliding block; 306. Slide groove; 4. Braking mechanism; 401. Support frame; 402. Sliding rod; 403. Braking clip; 404. Braking wheel; 405. Tension spring; 406. Braking push block; 407. Braking pressure block; 408. Linkage frame. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-8 One embodiment provided by the present invention: A particleboard chipper for easy adjustment of blade extension includes a base 101. A control console 102 is fixedly connected to the rear right side of the top of the base 101. A body 103 is fixedly connected to the left side of the top of the base 101. A rotating frame 104 is provided inside the body 103. A drive motor 105 is fixedly connected to the middle of the rear side of the body 103. The front end of the output shaft of the drive motor 105 passes through the rear side wall of the body 103 and is fixedly connected to a rotating seat 106. The rear side wall of the rotating frame 104 is sleeved on the front side of the outer wall of the rotating seat 106. A fastening stud 107 is threaded into the inner front wall of the rotating frame 104. The rotating frame 104 can be quickly disassembled and assembled through the cooperation of the rotating seat 106 and the fastening stud 107. At the same time, the drive motor 105 can drive the rotating frame 104 to rotate in a limited position through the rotating seat 106.

[0025] A transmission box 108 is fixedly connected to the inner outer ring of the rotating frame 104. A knife holder 109 is slidably connected to the left side of the transmission box 108. A shaving knife 110 is inserted into the left side of the knife holder 109. The knife holder 109 and the shaving knife 110 are assembled together by hex bolts 111. An anti-slip plate 112 is fixedly connected to the middle right side of the knife holder 109. A push plate 113 is fixedly connected to the middle right side of the anti-slip plate 112. A clamping mechanism 2 is provided above the anti-slip plate 112. The clamping mechanism 2 includes a pressure plate 201, which is located above the anti-slip plate 112. An anti-slip pad 202 is fixedly connected to the bottom center of the pressure plate 201, and the bottom of the anti-slip pad 202 can be tightly attached to the top of the anti-slip plate 112. Telescopic cylinders 203 are fixedly connected to both sides of the bottom of the pressure plate 201, and the bottom end of the telescopic cylinder 203 is fixedly connected to the bottom of the inner wall of the transmission box 108. Through this design, the pressure plate 201 can compress the telescopic cylinder 203 to drive the anti-slip pad 202 to be tightly attached to the anti-slip plate 112. A return spring 204 is fixedly connected to the bottom of the pressure plate 201 on the outer ring of the telescopic cylinder 203, and the bottom end of the return spring 204 is fixedly connected to the bottom of the inner wall of the transmission box 108. Through this design, the return spring 204 can drive the pressure plate 201 to slide upward to automatically reset.

[0026] A wedge-shaped pressure block 205 is fixedly connected to the top center of the pressure plate 201. A wedge-shaped push block 206 slides and fits above the wedge-shaped pressure block 205. A limiting frame 207 is sleeved on the outer wall of the wedge-shaped push block 206. The top of the limiting frame 207 is fixedly connected to the top left side of the inner wall of the transmission box 108. Through this design, the wedge-shaped push block 206 can slide and be limited inside the limiting frame 207, so that the wedge-shaped push block 206 can push the wedge-shaped pressure block 205 and the pressure plate 201 downward.

[0027] A pusher cylinder 208 is fixedly connected to the front middle of the wedge-shaped pusher block 206. A transmission screw 209 is threaded into the front side of the inner wall of the pusher cylinder 208. The front end of the transmission screw 209 passes through the transmission box 108 and is fixedly connected to the first twist cover 210. Through this design, the transmission screw 209 can be limited to rotate by manually rotating the first twist cover 210, so that the transmission screw 209 drives the pusher cylinder 208 and the wedge-shaped pusher block 206 to slide back and forth.

[0028] An adjustment mechanism 3 is provided above the push plate 113. The adjustment mechanism 3 includes a symmetrical screw 301. The rear end of the symmetrical screw 301 is movably connected to the rear side of the inner wall of the transmission box 108. The front end of the symmetrical screw 301 passes through the transmission box 108 and is fixedly connected to a second twist cap 302. Adjusting sleeves 303 are threaded on both sides of the outer wall of the symmetrical screw 301. A sliding frame 304 is fixedly connected to the lower part of the outer wall of the adjusting sleeve 303. The rear side of the sliding frame 304 is slidably connected to the right side of the inner wall of the transmission box 108. Through this design, the second twist cap 302 drives the symmetrical screw 301 to rotate in a limited position, so that the symmetrical screw 301 drives the adjusting sleeve 303 and the sliding frame 304 to slide symmetrically.

[0029] A slider 305 is fixedly connected to the bottom of the sliding frame 304. The slider 305 is in the shape of a slanted straight strip, and the inside of the push plate 113 has a groove 306 corresponding to the slider 305. Through this design, the sliding frame 304 drives the push plate 113 to slide left and right via the slider 305, which can effectively improve the adjustment accuracy of the extension of the shaving blade 110.

[0030] A braking mechanism 4 is located in the center of the transmission box 108. The braking mechanism 4 includes a support frame 401, the top of which is fixedly connected to the top center of the inner wall of the transmission box 108. Sliding rods 402 are inserted into the upper and lower sides of the support frame 401. A brake clamp 403 is fixedly connected to the right end of the sliding rod 402. A brake wheel 404 is attached to the right side of the brake clamp 403. The inner wall of the brake wheel 404 is fixedly connected to the middle of the outer wall of the symmetrical screw 301. Through this design, the sliding rod 402 drives the brake clamp 403 to slide left and right, so that the brake clamp 403 can engage the brake wheel 404, thereby braking the transmission component of the adjustment mechanism 3.

[0031] A tension spring 405 is fixedly connected to the left side of the brake clip 403 on the outer ring of the sliding rod 402, and the left end of the tension spring 405 is fixedly connected to the right side of the support frame 401. Through this design, the tension spring 405 can drive the brake clip 403 to slide to the left and disengage from the brake wheel 404, thereby releasing the brake on the transmission component of the adjusting mechanism 3.

[0032] The left end of the sliding rod 402 passes through the support frame 401 and is fixedly connected to a brake push block 406. A brake pressure block 407 slides against the left side of the brake push block 406. A linkage frame 408 is fixedly connected to the left side of the brake pressure block 407. The bottom left side of the linkage frame 408 is fixedly connected to the middle right side of the pressure plate 201. Through this design, the pressure plate 201 can drive the linkage frame 408 and the brake pressure block 407 to slide up and down, so that the brake pressure block 407 can drive the brake push block 406 and the sliding rod 402 to slide to the right, thereby realizing the linkage between the clamping mechanism 2 and the braking mechanism 4.

[0033] Working principle: When it is necessary to clamp and fix the anti-slip plate 112, firstly, by rotating the first twist cover 210 clockwise, the first twist cover 210 drives the transmission screw 209 to rotate in a limited position. The transmission screw 209 drives the push screw 208 to slide backward. The push screw 208 drives the wedge push block 206 to slide synchronously inside the limit frame 207. The wedge push block 206 drives the wedge pressure block 205 to slide downward. The wedge pressure block 205 drives the pressure plate 201 to slide downward. The pressure plate 201 compresses the telescopic cylinder 203 and the return spring 204 and drives the anti-slip pad 202 to slide synchronously, so that the anti-slip pad 202 is in close contact with the top of the anti-slip plate 112. This allows the anti-slip plate 112 to be clamped and fixed by the inner wall of the transmission box 108, thus realizing the clamping and fixing operation of the anti-slip plate 112.

[0034] When it is necessary to push and adjust the push plate 113, firstly, the second twist cover 302 is manually rotated. The second twist cover 302 drives the symmetrical screw 301 to rotate in a limited position. The symmetrical screw 301 drives the adjusting screw sleeve 303 to slide symmetrically. The adjusting screw sleeve 303 drives the sliding frame 304 to slide synchronously. The sliding frame 304 drives the slider 305 to slide synchronously. The slider 305 drives the push plate 113 to slide left and right, thus realizing the push and adjust operation of the push plate 113.

[0035] When it is necessary to brake the adjustment mechanism 3, the clamping mechanism 2 drives the pressure plate 201 to slide downward, the pressure plate 201 drives the linkage frame 408 to slide downward, the linkage frame 408 drives the brake pressure block 407 to slide synchronously, the brake pressure block 407 drives the brake push block 406 to slide to the right, the brake push block 406 drives the sliding rod 402 to slide in a limited position on the inner wall of the support frame 401, the sliding rod 402 drives the brake clip 403 to slide synchronously and stretch the tension spring 405, so that the right side of the brake clip 403 is locked in the groove on the outer wall of the brake wheel 404, thereby braking the symmetrical screw 301 of the adjustment mechanism 3, realizing the braking operation of the adjustment mechanism 3, and the operation ends here.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, utilizing the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A particleboard chipper for easy adjustment of blade extension, comprising a base (101), characterized in that: A control console (102) is fixedly connected to the rear right side of the top of the base (101). An organism (103) is fixedly connected to the left side of the top of the base (101). A rotating frame (104) is provided inside the organism (103). A transmission box (108) is fixedly connected to the outer ring inside the rotating frame (104). A knife holder (109) is slidably connected to the left side inside the transmission box (108). A shaving knife (110) is inserted into the left side of the knife holder (109). The knife holder (109) and the shaving knife (110) are assembled together by hexagonal bolts (111). An anti-slip plate (112) is fixedly connected to the middle right side of the knife holder (109). A push plate (113) is fixedly connected to the middle right side of the anti-slip plate (112). A clamping mechanism (2) is provided above the anti-slip plate (112). The clamping mechanism (2) includes a pressure plate (201) located above the anti-slip plate (112). An adjustment mechanism (3) is provided above the push plate (113). The adjustment mechanism (3) includes a symmetrical screw (301). The rear end of the symmetrical screw (301) is movably connected to the rear side of the inner wall of the transmission box (108). A braking mechanism (4) is provided in the middle of the interior of the transmission box (108). The braking mechanism (4) includes a support frame (401). The top of the support frame (401) is fixedly connected to the top middle of the inner wall of the transmission box (108).

2. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 1, characterized in that: A drive motor (105) is fixedly connected to the middle of the rear side of the body (103). The front end of the output shaft of the drive motor (105) passes through the rear side wall of the body (103) and is fixedly connected to a rotating seat (106). The rear side wall of the rotating frame (104) is sleeved on the front side of the outer wall of the rotating seat (106). A fastening stud (107) is threaded into the inner front wall of the rotating frame (104).

3. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 1, characterized in that: An anti-slip pad (202) is fixedly connected to the bottom center of the pressure plate (201). The bottom of the anti-slip pad (202) can be tightly attached to the top of the anti-slip plate (112). Telescopic cylinders (203) are fixedly connected to both sides of the bottom of the pressure plate (201). The bottom end of the telescopic cylinder (203) is fixedly connected to the bottom of the inner wall of the transmission box (108).

4. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 3, characterized in that: The bottom of the pressure plate (201) is fixedly connected to the outer ring of the telescopic cylinder (203) with a return spring (204), and the bottom end of the return spring (204) is fixedly connected to the bottom of the inner wall of the transmission box (108).

5. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 1, characterized in that: A wedge-shaped pressure block (205) is fixedly connected to the top center of the pressure plate (201). A wedge-shaped push block (206) slides on the upper part of the wedge-shaped pressure block (205). A limiting frame (207) is sleeved on the outer wall of the wedge-shaped push block (206). The top of the limiting frame (207) is fixedly connected to the top left side of the inner wall of the transmission box (108).

6. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 5, characterized in that: The wedge-shaped pusher (206) is fixedly connected to the middle of the front side of the pusher cylinder (208). The inner wall of the pusher cylinder (208) is threaded with a transmission screw (209). The front end of the transmission screw (209) passes through the transmission box (108) and is fixedly connected to the first twist cap (210).

7. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 1, characterized in that: The front end of the symmetrical screw (301) passes through the transmission box (108) and is fixedly connected to the second twist cap (302). The outer walls of the symmetrical screw (301) are threaded with adjusting sleeves (303). The lower part of the outer wall of the adjusting sleeve (303) is fixedly connected to a sliding frame (304). The rear side of the sliding frame (304) is slidably connected to the right side of the inner wall of the transmission box (108).

8. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 7, characterized in that: The bottom of the sliding frame (304) is fixedly connected to a slider (305), the slider (305) is in the shape of a slanted straight bar, and the inside of the push plate (113) is provided with a groove (306) corresponding to the slider (305).

9. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 1, characterized in that: Sliding rods (402) are inserted into the upper and lower sides inside the support frame (401). A brake clip (403) is fixedly connected to the right end of the sliding rod (402). A brake wheel (404) is attached to the right side of the brake clip (403). The inner wall of the brake wheel (404) is fixedly connected to the middle of the outer wall of the symmetrical screw (301). The left side of the brake clip (403) is fixedly connected to the outer ring of the sliding rod (402) with a tension spring (405), and the left end of the tension spring (405) is fixedly connected to the right side of the support frame (401).

10. A particleboard chipper for conveniently adjusting the blade extension amount according to claim 9, characterized in that: The left end of the sliding rod (402) passes through the support frame (401) and is fixedly connected to the brake push block (406). The left side of the brake push block (406) is fitted with a brake pressure block (407). The left side of the brake pressure block (407) is fixedly connected to a linkage frame (408). The bottom left side of the linkage frame (408) is fixedly connected to the middle right side of the pressure plate (201).

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