Multifunctional profile machining equipment
The multifunctional profile processing equipment addresses deformation and interference issues in fishbone strip buckle profiles by using a driven wheel system with cutting and punching components to automate the production of fishbone strips, improving efficiency and reducing manual labor.
Patent Information
- Application Number
- CN202421443966.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Traditional bending machines for three-dimensional luminous characters, particularly those processing fishbone strip buckle profiles, face deformation and interference issues during processing, and the manual adjustment required for is labor-intensive and reduces efficiency.
A multifunctional profile processing equipment with a cutting and punching mechanism, utilizing a driven wheel system with symmetrically arranged cutting and punching components, controlled by a servo motor or motor with a reducer, to automatically produce and adjust the number of fishbone strips, avoiding interference and ensuring the profile's beauty and forming effect.
The equipment efficiently produces fishbone strips with gaps, reducing manual intervention and processing costs, thereby enhancing bending efficiency and maintaining the profile's aesthetic and structural integrity.
Smart Images

Figure CN222242184U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of profile processing, in particular to multifunctional profile processing equipment. Background Art
[0002] Three-dimensional luminous characters are a common form of advertising used by businesses. They have the advantages of beautiful appearance and low cost, so they have become the first choice for businesses for advertising in recent years. The main work of making the edges of three-dimensional luminous characters is the edges, which mainly include folding and bending. Traditional bending is done by hand, which is difficult to ensure the quality of the characters and has low efficiency, so it is gradually replaced by bending machines. The bending machine includes a feeding device, a cutting device, and a bending device. However, for some special profiles, traditional bending machines will have some problems after bending.
[0003] Reference Figure 6 As shown, the fishbone strip buckle profile that is particularly popular on the market now, the fishbone strip buckle profile includes a profile body, a fishbone strip is provided on the side of the profile body, and the other end of the fishbone strip is provided with a vertically arranged buckle tooth, which is buckled through the processed profile, and the surrounding profile body surrounds and abuts against the PVC board. At the same time, the fishbone strip supports the PVC board, and the buckle tooth can be clamped on the PVC board. During actual processing, the profile needs to be bent, but directly removing part of the fishbone strip will cause deformation of the profile. Therefore, it is necessary to cut a gap in the fishbone strip first. In the first step, the processing personnel need special equipment to cut the profile to obtain a fishbone strip with a gap. In the second step, the fishbone strip with the gap cut out is punched out and then bent. Since the gaps are processed between the fishbone strips, the fishbone strips can be adjusted to adapt to different shapes PVC board, and will not cause deformation inside the profile. The products processed by this kind of fishbone strip buckle profile are stable and popular in the market. During processing, the bent profile will partially interfere with each other. The third step requires manual adjustment by the operator. There is a processed gap between adjacent fishbone strips in the normal state, but after the main body of the profile is bent, the gap between the fishbone strips at the corresponding bending position will be reduced, so that the fishbone strips and the buckle teeth will conflict with each other and cause interference. The current solution to this problem is that after processing, the operator uses tools to manually remove the interfering fishbone strips, and finally bends them to obtain the corresponding structure. This solution has the following problems: on the one hand, it increases labor intensity and reduces bending efficiency; on the other hand, the increase in processing equipment will increase processing costs. Utility Model Content
[0004] The problem solved by the utility model is to provide a multifunctional profile processing equipment, which can produce a corresponding number of fishbone strips according to actual needs and punch out the number of fishbone strips, thereby avoiding interference caused by subsequent profile bending and ensuring the beauty and forming effect of the profile.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] The cam is provided with a tooth-punching groove and a tooth-punching groove which are connected with the feed hole, and a cutting component and a tooth-punching component are rotatably mounted on the mounting plate above the processing seat, and a cutting component and a tooth-punching component are rotatably mounted on the non-center position of the driven wheel, and the connection position of the cutting component and the driven wheel and the connection position of the tooth-punching component and the driven wheel are symmetrically arranged along the center of the driven wheel, the lower end of the cutting component is slidably connected with the cutting groove, and the lower end of the tooth-punching component is slidably connected with the tooth-punching groove, and a cutting and tooth-punching power component is provided on the other side of the mounting plate, and a driving wheel meshing with the driven wheel is provided on the power output shaft of the cutting and tooth-punching power component, and a return component corresponding to the cutting component and the tooth-punching component is provided on the mounting plate, and the return component is signal-connected with the cutting and tooth-punching power component.
[0007] The beneficial effect of the utility model is that the operator first feeds the profile into the processing seat for processing, the power output shaft of the cutting and punching power component rotates to drive the driving wheel to rotate, and the driving wheel rotates to drive the driven wheel to rotate. Since the cutting component and the punching component are rotatably installed on the non-center position of the driven wheel, the lower end of the cutting component is slidably connected to the cutting groove, and the lower end of the punching component is slidably connected to the punching groove, which limits the cutting component and the punching component to only move up and down, and the clockwise rotation of the driving wheel drives the driven wheel to rotate counterclockwise, and the counterclockwise rotation of the driven wheel drives the cutting component The parts move downward to cut the gap of the fishbone strips in the cutting groove. After cutting, the cutting parts touch the returning parts, and then the cutting and punching power parts are reset. The counterclockwise rotation of the driving wheel drives the driven wheel to rotate clockwise, and the clockwise rotation of the driven wheel drives the punching parts to move downward to punch out the fishbone strips of the profile in the punching groove. After punching, the punching parts touch the returning parts, and then the cutting and punching power parts are reset. The corresponding number of fishbone strips can be produced according to actual needs and the number of fishbone strips can be punched out, thereby avoiding interference caused by subsequent bending of the profile and ensuring the beauty and forming effect of the profile.
[0008] As an improved technical solution, the cutting component includes a cutting handle and a cutting knife which are rotatably connected, the upper end of the cutting handle is rotatably connected to the driven wheel, and the lower end of the cutting knife is slidably mounted on the cutting groove.
[0009] As an improved technical solution, the tooth punching component includes a tooth punching handle and a tooth punching cutter that are rotatably connected, the upper end of the tooth punching handle is rotatably connected to the driven wheel, and the lower end of the tooth punching cutter is slidably mounted on the tooth punching groove.
[0010] As an improved technical solution, the two ends of the cutting handle are rotatably mounted on the driven wheel and the upper end of the cutting knife through copper sleeves, and the two ends of the punching handle are rotatably mounted on the driven wheel and the upper end of the punching knife through copper sleeves.
[0011] As an improved technical solution, the return component includes a limiting long strip hole arranged on the mounting plate corresponding to the cutting component and the punching tooth component, and the limiting long strip hole is provided with a limiting rod sliding up and down, and the ends of the limiting rod are respectively fixedly connected to the connecting end of the cutting handle and the cutting knife and the connecting end of the punching tooth handle and the punching tooth knife, and a position sensor corresponding to the limiting rod is installed on the side of the mounting plate, and the position sensor is connected to the signal of the cutting and punching tooth power component.
[0012] As an improved technical solution, the processing seat includes a base, a positioning body is provided on one side of the base, the other side of the base is fixedly connected to the mounting plate through a connecting column, the feed through hole and the punching groove are both provided on the positioning body, the base and the positioning body are integrally formed, the cross-section of the processing seat is a convex shape with a larger base and a smaller positioning body, a plurality of material separation grooves are provided on the base on one side of the positioning body, and a plurality of material separation rods are passed through the material separation grooves.
[0013] As an improved technical solution, a feed block is detachably provided on the lower part of the positioning body between the positioning body and the base, a fixing bolt for fixing the feed block is penetrated through the outer end surface of the positioning body, and the feed through hole is opened on the feed block.
[0014] As an improved technical solution, a positioning hole penetrating from top to bottom is opened on the base, a positioning column is inserted into the positioning hole, and a positioning block sleeved on the limiting rod is provided at the upper end of the positioning column. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 yes Figure 1 A schematic diagram of a three-dimensional structure from another angle;
[0017] Figure 3 yes Figure 1 A schematic diagram of the structure in the main viewing direction;
[0018] Figure 4 yes Figure 1 A schematic diagram of the structure in the rear-view direction;
[0019] Figure 5 yes Figure 1 A schematic diagram of the structure of a processing seat;
[0020] Figure 6 It is a schematic diagram of the processing flow of herringbone strip buckle profiles;
[0021] Legend: 1. Workbench, 301. Mounting plate, 302. Processing seat, 303. Feed through hole, 304. Cutting groove, 305. Punching groove, 306. Spacer groove, 307. Feed block, 308. Driven wheel, 309. Cutting handle, 310. Cutting knife, 311. Punching handle, 312. Punching knife, 313. Copper sleeve, 314. Cutting and punching power component, 315. Driving wheel, 316. Limiting strip hole, 317. Limiting rod, 318. Position sensor, 319. Positioning hole, 320. Positioning column, 321. Positioning block, 601. Profile body, 602. Fishbone strip, 603. Buckle tooth. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In order to facilitate the understanding of this patent, the processing flow of the fishbone strip buckle profile is briefly described, referring to Figure 6As shown, the fishbone strip buckle profile that is more popular on the market now, the fishbone strip buckle profile includes a profile body 601, a fishbone strip 602 is provided on the side of the profile body 601, and the other end of the fishbone strip 602 is provided with a vertically arranged buckle tooth 603, which is buckled by the processed profile, and the surrounding profile body 601 surrounds and abuts against the PVC board, and the fishbone strip 602 supports the PVC board, and the buckle tooth 603 can be clamped on the PVC board. During actual processing, the profile needs to be bent, but directly removing part of the fishbone strip 602 will cause deformation of the profile, so it is necessary to cut a gap in the fishbone strip 602 first. In the first step, the processing personnel need special equipment to cut the profile to obtain the fishbone strip 602 with a gap, and then punch out the fishbone strip 602 with the gap cut out and then bend it. Since the gaps are processed between the fishbone strips 602, the fishbone strips 602 can be adjusted. 602 can adapt to PVC boards of different shapes without causing deformation inside the profile. The products processed by this fishbone strip buckle profile are highly stable and popular in the market. During processing, the bent profile will partially interfere with each other. The third step requires manual adjustment by the operator. There is a processed gap between adjacent fishbone strips 602 in a normal state. However, after the profile body 601 is bent, the gap between the fishbone strips 602 at the corresponding bending position will be reduced, so that the fishbone strips 602 and the buckle teeth 603 will conflict with each other and cause interference. At present, the solution to this problem is that after processing, the operator uses a tool to manually remove the interfering fishbone strips 602, and finally bends and forms the corresponding structure. This solution has the following problems: on the one hand, it increases labor intensity and reduces bending efficiency; on the other hand, the increase in processing equipment will increase processing costs.
[0024] For ease of description, Figure 1 The left direction is forward, Figure 1 The top is up, and the left is perpendicular to the paper. Figure 1-Figure 5As shown, the multifunctional profile processing equipment includes a workbench 1, a mounting plate 301 is provided on the upper portion of the workbench 1, a processing seat 302 is provided on one side of the mounting plate 301, a feed through hole 303 for passing the profile is penetrated on the processing seat 302, the processing seat 302 is provided with a cutting groove 304 and a punching groove 305 connected with the feed through hole 303 in sequence from front to back, the processing seat 302 includes a base, a positioning body is provided on one side of the base, the other side of the base is fixedly connected to the mounting plate 301 through a connecting column, the feed through hole 303 and the punching groove 305 are both provided on the positioning body, the base and the positioning body are integrally formed, the cross-section of the processing seat 302 is convex in shape with the base larger than the positioning body, a plurality of material separation grooves 306 are provided on the base on one side of the positioning body, and a plurality of material separation rods are passed through the material separation grooves 306. The spacer rod can prevent the side of the profile from being scratched due to friction between the side of the base. A feed block 307 is detachably provided on the lower part of the positioning body between the positioning body and the base, and a fixing bolt for fixing the feed block 307 is penetrated through the outer end surface of the positioning body, and the feed through hole 303 is provided on the feed block 307. The detachability of the feed block 307 can adapt to profiles of different sizes and shapes.
[0025] A driven wheel 308 is rotatably mounted on the mounting plate 301 above the processing seat 302, and a cutting component and a tooth punching component are rotatably mounted on a non-center position of the driven wheel 308. The connection position between the cutting component and the driven wheel 308 and the connection position between the tooth punching component and the driven wheel 308 are symmetrically arranged along the center of the driven wheel 308. The lower end of the cutting component is slidably connected to the cutting groove 304, and the lower end of the tooth punching component is slidably connected to the tooth punching groove 305. The cutting component includes a rotatably connected cutting handle 309 and a cutting knife 310. The upper end of the cutting handle 309 is rotatably connected to the driven wheel 308, and the lower end of the cutting knife 310 is slidably mounted on the cutting groove 304. The cutting knife 310 can cut the profile to produce a corresponding number of fishbone strips. The tooth punching component includes a tooth punching handle 311 and a tooth punching knife 312 which are rotatably connected. The upper end of the tooth punching handle 311 is rotatably connected to the driven wheel 308, and the lower end of the tooth punching knife 312 is slidably mounted on the tooth punching groove 305. The tooth punching knife 312 punches out the herringbone strips of the profile, and the number of herringbone strips punched out is based on actual needs, thereby avoiding interference caused by subsequent bending of the profile, and ensuring the beauty of the profile and the molding effect. The two ends of the cutting handle 309 are rotatably mounted on the upper ends of the driven wheel 308 and the cutting knife 310 through copper sleeves 313, and the two ends of the tooth punching handle 311 are rotatably mounted on the upper ends of the driven wheel 308 and the tooth punching knife 312 through copper sleeves 313. The copper sleeve 313 can reduce the wear of the cutting handle 309 and the tooth punching handle 311 and increase the stability of the equipment. A cutting and punching power component 314 is provided on the other side of the mounting plate 301, and a driving wheel 315 meshing with the driven wheel 308 is provided on the power output shaft of the cutting and punching power component 314, and return parts corresponding to the cutting component and the punching component are provided on the mounting plate 301, and the return parts are connected to the cutting and punching power component 314 by signal. The cutting and punching power component 314 here can adopt a servo motor or a motor with a reducer, and the servo motor can control the speed, and the motor with a reducer can also control the speed. The gear meshing connection between the driving wheel 315 and the driven wheel 308 can ensure the accuracy of the cutting component and the punching component.The clockwise rotation of the driving wheel 315 drives the driven wheel 308 to rotate counterclockwise, and the counterclockwise rotation of the driven wheel 308 drives the cutting handle 309 to move downward. Since the upper end of the cutting handle 309 is rotatably mounted on the driven wheel 308, the lower end of the cutting handle 309 is rotatably mounted on the cutting knife 310, and the lower end of the cutting knife 310 is slidably mounted on the cutting groove 304, the movement of the cutting handle 309 drives the movement of the cutting knife 310, so the cutting knife 310 can only move up and down on the cutting groove 304, so that the cutting knife 310 can cut the gap of the herringbone strips of the profile. After cutting, the cutting component hits the returning component, and then the cutting punching tooth power component 314 is reset, and the counterclockwise rotation of the driving wheel 315 drives the driven wheel 308 clockwise As the needle rotates, the driven wheel 308 rotates clockwise to drive the tooth punching handle 311 to move downward. Since the upper end of the tooth punching handle 311 is rotatably installed on the driven wheel 308, the lower end of the tooth punching handle 311 is rotatably installed with the tooth punching cutter 312, and the lower end of the tooth punching cutter 312 is slidably installed on the tooth punching groove 305. As the movement of the tooth punching handle 311 drives the movement of the tooth punching cutter 312, the tooth punching cutter 312 can only move up and down on the tooth punching groove 305, so that the tooth punching cutter 312 punches the gaps of the herringbone strips on the profile. After the tooth punching component punches the teeth, it hits the returning component, and then the tooth punching power component is reset. The clockwise and counterclockwise here are for the convenience of understanding the patent. In actual use, the use of cutting and tooth punching is the different rotation directions of the driving wheel 315.
[0026] The above-mentioned return parts include a limiting long strip hole 316 arranged on the mounting plate 301 corresponding to the cutting part and the punching tooth part, and the limiting long strip hole 316 is provided with a limiting rod 317 that slides up and down, and the ends of the limiting rod 317 are respectively fixedly connected to the connecting ends of the cutting handle 309 and the cutting knife 310 and the connecting ends of the punching tooth handle 311 and the punching tooth knife 312, and a position sensor 318 corresponding to the limiting rod 317 is installed on the side of the mounting plate 301, and the position sensor 318 is connected to the signal of the cutting and punching tooth power component 314. Because the cutting knife 310 and the punching knife 312 both move up and down, the connection end of the cutting handle 309 and the cutting knife 310 or the connection end of the punching handle 311 and the punching knife 312 also moves up and down, so that the limit rod 317 can move up and down in the limit strip hole 316. The up and down reciprocating movement of the limit rod 317 can touch the position sensor 318 at different positions. The position sensor 318 at the cutting knife 310 is set at the upper end of the limit strip hole 316, and the position sensor 318 at the punching knife 312 is set at the lower end of the limit strip hole 316. The brand of the position sensor 318 is ams (AMS Semiconductor), and the model is AS5600-ASOT. The structure and working principle of the position sensor 318 are prior art and are well known to those skilled in the art, so they will not be elaborated here.
[0027] The base is provided with a positioning hole 319 which passes through from top to bottom, and a positioning column 320 is inserted into the positioning hole 319. The upper end of the positioning column 320 is provided with a positioning block 321 which is sleeved on the limiting rod 317. As the limiting rod 317 moves up and down, the positioning block 321 moves up and down, and the movement of the positioning block 321 drives the positioning column 320 to move up and down. Since the positioning column 320 is inserted into the positioning hole 319 and the base is fixed on the mounting plate 301, the positioning column 320 can provide positioning for the limiting rod 317 to move up and down.
[0028] When the utility model is in use, the profile is transported to the processing seat 302, and the power output shaft of the cutting punching tooth power component 314 rotates to drive the driving wheel 315 to rotate, and the driving wheel 315 rotates to drive the driven wheel 308 to rotate, and the clockwise rotation of the driving wheel 315 drives the driven wheel 308 to rotate counterclockwise, and the counterclockwise rotation of the driven wheel 308 drives the cutting handle 309 to move downward. Since the upper end of the cutting handle 309 is rotatably mounted on the driven wheel 308, the lower end of the cutting handle 309 is rotatably mounted on the cutting knife 310, and the lower end of the cutting knife 310 is slidably mounted on the cutting groove 304, the movement of the cutting handle 309 drives the movement of the cutting knife 310, so the cutting knife 310 can only move up and down on the cutting groove 304, so that the cutting knife 310 can cut the gap of the herringbone strips of the profile, and the cutting component touches the returning component after cutting, and then the cutting punch The tooth power component 314 is reset, and the counterclockwise rotation of the driving wheel 315 drives the driven wheel 308 to rotate clockwise, and the clockwise rotation of the driven wheel 308 drives the tooth punching handle 311 to move downward. Since the upper end of the tooth punching handle 311 is rotatably installed on the driven wheel 308, the lower end of the tooth punching handle 311 is rotatably installed with the tooth punching knife 312, and the lower end of the tooth punching knife 312 is slidably installed on the tooth punching groove 305, the movement of the tooth punching handle 311 drives the movement of the tooth punching knife 312, so that the tooth punching knife 312 can only move up and down on the tooth punching groove 305, so that the tooth punching knife 312 punches the gap of the fishbone strips on the profile. After the tooth punching component punches the teeth, it hits the returning component, and then the tooth punching power component is reset. According to actual needs, a corresponding number of fishbone strips can be produced and the number of fishbone strips can be punched out, thereby avoiding interference caused by subsequent bending of the profile, and ensuring the beauty and forming effect of the profile.
[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A multifunctional profile processing equipment, characterized in that: The invention comprises a workbench (1), wherein a mounting plate (301) is provided on the upper part of the workbench (1), a processing seat (302) is provided on one side of the mounting plate (301), a feed through hole (303) for passing a profile is passed through the processing seat (302), a cutting groove (304) and a tooth punching groove (305) are provided on the processing seat (302) from front to back in sequence and are communicated with the feed through hole (303), a driven wheel (308) is rotatably mounted on the mounting plate (301) above the processing seat (302), a cutting component and a tooth punching component are rotatably mounted on a non-center position of the driven wheel (308), and the connection position between the cutting component and the driven wheel (308) and the tooth punching component are connected to each other. The connection position between the tooth punching component and the driven wheel (308) is symmetrically arranged along the center of the driven wheel (308); the lower end of the cutting component is slidably connected to the cutting groove (304); the lower end of the tooth punching component is slidably connected to the tooth punching groove (305); a cutting tooth punching power component (314) is provided on the other side of the mounting plate (301); a driving wheel (315) meshing with the driven wheel (308) is provided on the power output shaft of the cutting tooth punching power component (314); and return components corresponding to the cutting component and the tooth punching component are provided on the mounting plate (301); the return components are signal-connected to the cutting tooth punching power component (314).
2. The multifunctional profile processing equipment according to claim 1, characterized in that: The cutting component comprises a rotatably connected cutting handle (309) and a cutting knife (310), the upper end of the cutting handle (309) being rotatably connected to the driven wheel (308), and the lower end of the cutting knife (310) being slidably mounted on the cutting groove (304).
3. The multifunctional profile processing equipment according to claim 2, characterized in that: The tooth punching component comprises a tooth punching handle (311) and a tooth punching knife (312) which are rotatably connected, the upper end of the tooth punching handle (311) is rotatably connected to the driven wheel (308), and the lower end of the tooth punching knife (312) is slidably mounted on the tooth punching groove (305).
4. The multifunctional profile processing equipment according to claim 3, characterized in that: The two ends of the cutting handle (309) are rotatably mounted on the driven wheel (308) and the upper end of the cutting knife (310) through copper sleeves (313), and the two ends of the tooth punching handle (311) are rotatably mounted on the driven wheel (308) and the upper end of the tooth punching knife (312) through copper sleeves (313).
5. The multifunctional profile processing equipment according to claim 2, characterized in that: The return parts include a limiting long strip hole (316) arranged on the mounting plate (301) corresponding to the cutting part and the tooth punching part; the limiting long strip hole (316) is provided with a limiting rod (317) that slides up and down; the ends of the limiting rod (317) are respectively fixedly connected to the connecting ends of the cutting handle (309) and the cutting knife (310) and the connecting ends of the tooth punching handle (311) and the tooth punching knife (312); a position sensor (318) corresponding to the limiting rod (317) is installed on the side of the mounting plate (301); and the position sensor (318) is connected to the cutting and tooth punching power part (314) for signal transmission.
6. The multifunctional profile processing equipment according to claim 5, characterized in that: The processing seat (302) comprises a base, a positioning body is provided on one side of the base, and the other side of the base is fixedly connected to the mounting plate (301) via a connecting column. The feed through hole (303) and the punching groove (305) are both provided on the positioning body. The base and the positioning body are integrally formed. The cross-section of the processing seat (302) is in a convex shape with a larger base and a smaller positioning body. A plurality of material separation grooves (306) are provided on the base on one side of the positioning body, and a plurality of material separation rods are passed through the material separation grooves (306).
7. The multifunctional profile processing equipment according to claim 6, characterized in that: A detachable feed block (307) is provided on the lower part of the positioning body between the positioning body and the base body, a fixing bolt for fixing the feed block (307) is penetrated through the outer end surface of the positioning body, and the feed through hole (303) is opened on the feed block (307).
8. The multifunctional profile processing equipment according to claim 7, characterized in that: The base body is provided with a positioning hole (319) which passes through the base body from top to bottom. A positioning column (320) is inserted into the positioning hole (319). The upper end of the positioning column (320) is provided with a positioning block (321) which is sleeved on the limiting rod (317).
