Slotter drive

Abstract

The utility model relates to prefabricated building material processing equipment technical field, concretely is groove cutter drive arrangement, including tool rest, install a plurality of cutting knife parts on tool rest, cutting knife part includes shell, the inside slide of shell is provided with tool rest, one end of tool rest is installed with cutting knife, the other end of tool rest is installed with cutting knife pneumatic cylinder, the upper and lower sides of tool rest all install a plurality of length gradually reducing limit post, the one end head outside of shell close cutting knife installs limit pneumatic cylinder, the output shaft of limit pneumatic cylinder is installed with telescopic link, the inside end of telescopic link slide is slid through and extends to shell inside, through the extension length difference of telescopic link, realize the stroke limit of cutting knife on different position limit post. In this groove cutter drive arrangement, the device adopts cutting knife pneumatic cylinder and directly drives tool rest to retract, cooperates the sliding guide of shell to tool rest, forms stable vertical feed and retreat structure, effectively avoids the traditional cam connecting rod mechanism's jam, offset problem, ensures the perpendicularity of cutting knife movement track.

Description

Technical Field

[0001] This utility model relates to the technical field of prefabricated building material processing equipment, and more specifically, to a slotting knife driving device. Background Technology

[0002] In the field of precast concrete slab processing, slab production requires first generating concrete material using molds, then grooving the sides of the concrete material with a grooving cutter, and finally cutting it into slabs. The grooving cutter drive device, as the core equipment for grooving slabs, directly affects processing efficiency and accuracy due to its structural rationality. Currently, most grooving cutter drive devices on the market rely excessively on automated control systems for tool feed and length measurement. For example, the automatic grooving machine disclosed in Chinese patent CN105666428A uses a servo motor and sensors to achieve precise control of the tool feed. While this meets high-precision processing requirements, the equipment has high manufacturing costs and poor adaptability in small-scale processing scenarios or environments with unstable power supplies. Meanwhile, some traditional devices relying on mechanical structures have significant drawbacks: either they lack a reliable length measurement structure, requiring manual monitoring of the feed depth in real time, which can easily lead to inconsistent groove depths due to operational errors; or their vertical guide structure for feed and retraction is poorly designed, resulting in problems such as tool deviation and jamming, affecting the perpendicularity of the groove cut. For example, grooving devices driven by cam linkage mechanisms, although not requiring electric power, have a fixed feed stroke, making it impossible to flexibly adjust according to different groove depth requirements. Furthermore, the retraction action relies on spring reset, which, after long-term use, can easily lead to untimely retraction due to spring fatigue, posing a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a grooving tool driving device to solve the problems mentioned in the background art, which are either lacking a reliable length measuring structure, requiring manual real-time monitoring of the infeed depth, and easily leading to inconsistent groove depth due to operational errors; or having an unreasonable design of the vertical guide structure for tool infeed and retraction, resulting in problems such as tool deviation and jamming, which affect the perpendicularity of the grooving.

[0004] To achieve the above objectives, this utility model provides a grooving knife driving device, including a knife holder with several cutting knife components mounted on it. Each cutting knife component extends from the knife holder to perform grooving operations on the sheet material. Each cutting knife component includes a housing, the outer wall of which is fixedly mounted on the knife holder. A knife holder is slidably disposed inside the housing. A cutting knife is mounted at one end of the knife holder, and a cutting knife cylinder is mounted at the other end. Several limiting posts with progressively decreasing lengths are mounted on both the upper and lower sides of the knife holder. Two symmetrical limiting cylinders are mounted on the outer side of the housing near the cutting knife. A telescopic rod is mounted on the output shaft of each limiting cylinder, and the inner end of the telescopic rod slides through and extends into the housing. By varying the extension length of the telescopic rod, the stroke of the limiting posts is limited at different positions of the cutting knife.

[0005] This design uses a blade holder to support the cutting component. The blade holder in the cutting component slides inside the housing. The blade holder is driven by a cutting cylinder to extend and retract, thus enabling the blade to advance and retract. At the same time, by using limit posts with progressively decreasing lengths on both sides of the blade holder, in conjunction with a telescopic rod driven by a limit cylinder, the different extension lengths of the telescopic rod block the limit posts at different positions, thereby limiting the stroke of the blade holder and achieving different cutting depths of the blade.

[0006] Preferably, the limiting posts are arranged at equal intervals from left to right, and their lengths decrease sequentially, with the longest being 100mm and the shortest being 40mm, and the length decreasing by 20mm each time.

[0007] This setting arranges several limit posts at equal intervals with their lengths decreasing from 100mm to 40mm in a 20mm gradient. It clarifies the size and arrangement rules of the limit posts, so that the telescopic rod can accurately correspond to the limit posts of different lengths when it extends at different lengths, forming a fixed travel level.

[0008] Preferably, a cylinder seat is installed at the end of the cutter cylinder away from the cutter holder, and the cylinder seat is fixed to the outer wall of the housing.

[0009] This feature ensures that the cutter cylinder is fixed to the outer wall of the housing via a cylinder seat, providing a stable mounting base and guaranteeing that its position remains stable when driving the cutter holder to extend or retract, preventing it from shifting due to reaction forces.

[0010] Preferably, mounting brackets are installed on the bottom of both sides of the limiting cylinder, and the bottom of both mounting brackets are connected and fixed to the outer wall of the housing.

[0011] This setting limits the cylinder to the outer wall of the housing by mounting brackets on both sides, so that the cylinder and the housing maintain a relatively fixed positional relationship, ensuring that the telescopic rod can be accurately aligned with the limit posts on both sides of the tool holder.

[0012] Preferably, several of the cutting blade components are arranged at equal intervals from top to bottom on one side of the blade holder.

[0013] This setup features several cutting blade components arranged at equal intervals from top to bottom on the blade holder, allowing for simultaneous grooving operations on different positions of the board without the need for multiple adjustments to the board or blade holder position.

[0014] Preferably, the inner side of the blade holder is provided with a groove, the cutting cylinder is located in the groove, and one end of the output shaft of the cutting cylinder is fixed to the inner wall of the groove.

[0015] This feature provides a recessed area on the inner side of the blade holder to accommodate the cutting cylinder, allowing the output shaft of the cutting cylinder to be directly fixed to the inner wall of the recess, thus shortening the power transmission path and reducing power loss.

[0016] Preferably, the cutter has a trapezoidal structure and is made of stainless steel.

[0017] The trapezoidal structure of this cutter gradually changes the contact area between the blade and the sheet metal during grooving, reducing resistance during the grooving process; the stainless steel material has high hardness and wear resistance, which can extend the service life of the cutter.

[0018] Preferably, the surface of the limiting post is fitted with a rubber pad.

[0019] The rubber pads on the surface of the limiting post can cushion the impact between the telescopic rod and the limiting post through their own elasticity, reducing rigid collisions.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: In this grooving tool drive device, the cutting cylinder directly drives the tool holder to extend and retract. Combined with the sliding guide of the outer shell on the tool holder, a stable vertical infeed and retraction structure is formed, which effectively avoids the jamming and offset problems of traditional cam linkage mechanisms, ensures the verticality of the cutting tool's movement trajectory, and improves the regularity of the grooving process. At the same time, it eliminates the reliance on complex automated control systems. The core actions are realized through the linkage of mechanical components, reducing the risk of electronic component failure and maintaining stable operation even in unstable power or small-scale processing scenarios. The tool holder features progressively shorter limit posts on both sides, which, together with a telescopic rod driven by a limit cylinder, form a mechanical metering structure. By adjusting the extension length of the telescopic rod, the limit posts at different positions can be precisely engaged, enabling multi-level adjustment of the cutting stroke (covering a stroke range of 40mm-100mm in 20mm increments). Compared to traditional fixed-stroke devices, this design allows for adaptation to different groove depth requirements without the need to change tools or adjust the mechanical structure, significantly improving the equipment's adaptability to diverse processing tasks.

[0021] The mounting structure of the cutting cylinder and the limit cylinder ensures the stability of the power components. During operation, only the cylinder movement needs to be controlled to complete the feed, limit, and retraction processes, simplifying manual operation. In addition, the rubber pad on the surface of the limit post can buffer the collision between the telescopic rod and the limit post, reducing mechanical wear and noise, while avoiding tool bounce caused by rigid contact, indirectly improving machining safety. The design of multiple cutting blade components arranged at equal intervals on the blade holder allows for simultaneous multi-position grooving of the sheet metal, significantly shortening the batch processing time. The unified mechanical limiting method ensures the consistency of the stroke of each cutting blade, effectively solving the problem of groove depth deviation caused by traditional manual monitoring, and significantly improving the processing accuracy and pass rate of the products. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cutting component in this utility model; Figure 3 This is a schematic diagram of the limiting cylinder in this utility model; The meanings of the labels in the diagram are as follows: 1. Blade holder; 2. Cutting blade assembly; 21. Housing; 22. Blade holder; 221. Cutting blade; 222. Limiting post; 23. Cutting blade cylinder; 231. Cylinder seat; 24. Limiting cylinder; 241. Telescopic rod; 242. Mounting bracket; 3. Sheet material. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a grooving tool driving device, such as Figure 1 , Figure 2 , Figure 3 As shown, the device includes a blade holder 1, on which several cutting blade components 2 are mounted. The cutting blade components 2 extend from the blade holder 1 to perform grooving operations on the sheet material 3. Each cutting blade component 2 includes a housing 21, the outer wall of which is fixedly mounted on the blade holder 1. A blade holder 22 is slidably disposed inside the housing 21. A cutting blade 221 is mounted on one end of the blade holder 22, and a cutting blade cylinder 23 is mounted on the other end of the blade holder 22. Several limiting posts 222 with progressively decreasing lengths are mounted on both the upper and lower sides of the blade holder 22. Two symmetrical limiting cylinders 24 are mounted on the outer side of the end of the housing 21 near the cutting blade 221. A telescopic rod 241 is mounted on the output shaft of the limiting cylinder 24. The inner end of the telescopic rod 241 slides through and extends into the interior of the housing 21. By varying the extension length of the telescopic rod 241, the stroke of the cutting blade 221 is limited at different positions by the limiting posts 222.

[0025] In use, the cutter component 2 is supported by the cutter holder 1. The cutter head 22 in the cutter component 2 slides within the outer casing 21. The cutter head 22 is driven by the cutter cylinder 23 to extend and retract, thus enabling the cutter 221 to advance and retract. Simultaneously, using the limiting posts 222 with progressively decreasing lengths on both sides of the cutter head 22, in conjunction with the telescopic rod 241 driven by the limiting cylinder 24, the different extension lengths of the telescopic rod 241 block the limiting posts 222 at different positions, thereby limiting the stroke of the cutter head 22 and achieving different grooving depths of the cutter 221. This structural design constructs the overall framework of the device, realizes the basic function of vertical extension and retraction of the cutter 221, and through the cooperation of the mechanical structure, multi-level grooving depth adjustment can be achieved without complex automated control, improving the versatility and stability of the device.

[0026] In this embodiment, as Figure 2 As shown, several limiting posts 222 are arranged at equal intervals from left to right, and their lengths decrease sequentially, with the longest being 100mm and the shortest being 40mm, and the length decreasing by 20mm each time.

[0027] In use, several limit posts 222 are arranged at equal intervals, with their lengths decreasing from 100mm to 40mm in 20mm increments. This clearly defines the size and arrangement rules of the limit posts 222, ensuring that the telescopic rod 241 precisely corresponds to the limit posts 222 of different extension lengths, forming fixed stroke levels. This structural design quantifies the stroke adjustment gradient, ensuring precise and controllable adjustment of the grooving depth, meeting the grooving requirements of different specifications, avoiding stroke deviations caused by non-standard limit post 222 dimensions, and improving machining accuracy.

[0028] Specifically, such as Figure 2 As shown, a cylinder seat 231 is installed at the end of the cutter cylinder 23 away from the cutter holder 22, and the cylinder seat 231 is fixed on the outer wall of the housing 21.

[0029] In use, the cutter cylinder 23 is fixed to the outer casing 21 by the cylinder seat 231, providing a stable mounting base for the cutter cylinder 23 and ensuring its stable position when driving the blade holder 22 to extend and retract, preventing it from shifting due to reaction force. This structural design enhances the stability of the cutter cylinder 23 during operation, reduces the sliding deviation of the blade holder 22 caused by cylinder vibration, thereby ensuring the accuracy of the cutter 221's advance and retraction, and extending the service life of the cylinder.

[0030] Furthermore, such as Figure 3 As shown, mounting brackets 242 are installed on the bottom of both sides of the limiting cylinder 24, and the bottom of both mounting brackets 242 are connected and fixed to the outer wall of the housing 21.

[0031] In use, the limiting cylinder 24 is fixed to the outer wall of the housing 21 by the mounting brackets 242 on both sides, so that the limiting cylinder 24 and the housing 21 maintain a relatively fixed positional relationship, ensuring that the telescopic rod 241 can be accurately aligned with the limiting posts 222 on both sides of the tool holder 22. This structural design ensures the stability of the limiting cylinder 24 during operation and the alignment accuracy between the telescopic rod 241 and the limiting posts 222, avoiding limiting failure caused by the positional deviation of the limiting cylinder 24, and improving the reliability of stroke control.

[0032] Furthermore, such as Figure 1 As shown, several cutting blade components 2 are arranged at equal intervals from top to bottom on one side of the blade holder 1.

[0033] In use, several cutting blade components 2 are arranged at equal intervals from top to bottom on one side of the blade holder 1, allowing for simultaneous grooving operations on different positions of the sheet material 3 without the need for multiple adjustments to the position of the sheet material 3 or the blade holder 1. This structural design improves batch processing efficiency, enabling grooving of multiple positions on the sheet material 3 in one operation, and the equal-interval arrangement ensures the uniformity of each grooving position, enhancing product consistency.

[0034] Furthermore, such as Figure 2 As shown, a groove is provided on the inner side of the blade holder 22, and the cutting cylinder 23 is located in the groove. One end of the output shaft of the cutting cylinder 23 is fixed on the inner wall of the groove, and the base of the cutting cylinder 23 extends to the outer side of the groove and is connected to the cylinder seat 231.

[0035] In use, the groove on the inner side of the blade holder 22 provides a space for the cutting cylinder 23, shortening the power transmission path and reducing power loss. This structural design achieves a compact connection between the cutting cylinder 23 and the blade holder 22, improves power transmission efficiency, makes the extension and retraction of the blade holder 22 more sensitive, and saves internal space, making the structure more compact.

[0036] Furthermore, such as Figure 2 As shown, the cutter 221 has a trapezoidal structure and is made of stainless steel.

[0037] In use, the cutter 221 has a trapezoidal structure. During grooving, the contact area between the blade and the raw material 3 gradually changes, reducing resistance during the grooving process. The cutter 221 is made of stainless steel, which has high hardness and wear resistance, extending its service life. This structural design reduces energy consumption during grooving, minimizes wear on the cutter 221, extends its replacement cycle, ensures smooth grooving edges, and improves processing quality.

[0038] Furthermore, the surface of the limiting post 222 is fitted with a rubber pad.

[0039] During use, when the telescopic rod 241 contacts the limiting post 222, the rubber pad can cushion the impact force between the two through its own elasticity, reducing rigid collisions. This structural design reduces wear and collision noise between mechanical parts, extends the service life of the limiting post 222 and the telescopic rod 241, and avoids vibration of the tool holder 22 caused by collisions, ensuring the stability of grooving accuracy.

[0040] When using the grooving drive device of this utility model, before the device is started, the cutter 221 in the cutter component 2 is in the retracted state, the cutter holder 22 is retracted inside the outer shell 21, and both the cutter cylinder 23 and the limiting cylinder 24 are in the initial retracted state. According to the grooving depth requirement of the raw material 3 to be processed, the extension length of the telescopic rod 241 of the limiting cylinder 24 is pre-adjusted: if the required grooving depth is 100mm, the telescopic rod 241 is controlled to extend to the position that can block the longest limiting post 222; if a shallower depth such as 80mm, 60mm, or 40mm is required, the extension length of the telescopic rod 241 is shortened accordingly so that it can only block the limiting post 222 of the corresponding length. When the sheet material 3 is conveyed to the processing position on one side of the tool holder 1, the cutting cylinder 23 is activated and pushes the tool holder 22 to slide along the inside of the outer shell 21, causing the cutting blade 221 to extend vertically and contact the sheet material 3, thus starting the grooving operation. At this time, the limiting posts 222 on both sides of the tool holder 22 move forward synchronously with the tool holder 22. As the cutter 221 continues to advance, when the preset length limit post 222 contacts the inner end of the telescopic rod 241, the telescopic rod 241 restricts the cutter holder 22 from continuing to advance through mechanical blocking, and the cutter 221 stops advancing. At this time, the grooving depth reaches the design requirements. After grooving is completed, the cutting cylinder 23 retracts in the reverse direction, driving the tool holder 22 and the cutting blade 221 back to their initial positions along the inside of the outer casing 21, and the limiting post 222 separates from the inner end of the telescopic rod 241. At the same time, the limiting cylinder 24 can adjust the extension length of the telescopic rod 241 according to the next processing requirements, or maintain the current state for continuous processing at the same depth. If batch processing of multi-position grooves is required, since several cutting blade components 2 are arranged at equal intervals on the tool holder 1, the grooving of multiple positions of the sheet material 3 can be completed simultaneously in one feed action, without the need to repeatedly adjust the position of the sheet material or the tool holder. Through the above process, the device achieves grooving depth control and efficient processing entirely through mechanical structures, taking into account stability, flexibility and economy.

[0041] Finally, it should be noted that the electronic components in the limiting cylinder 24 and other components in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between each electrical component in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A grooving tool driving device, comprising a tool holder (1), characterized in that: The blade holder (1) is equipped with several cutting blade components (2). The cutting blade components (2) extend from the blade holder (1) to perform grooving operations on the sheet material (3). The cutting blade component (2) includes a shell (21). The outer wall of the shell (21) is fixedly installed on the blade holder (1). A blade holder (22) is slidably arranged inside the shell (21). A cutting blade (221) is installed at one end of the blade holder (22), and a cutting blade cylinder (23) is installed at the other end of the blade holder (22). The upper and lower sides of the shell (21) are equipped with several limiting posts (222) with successively decreasing lengths. Two symmetrical limiting cylinders (24) are installed on the outer side of the end of the shell (21) near the cutter (221). The output shaft of the limiting cylinder (24) is equipped with a telescopic rod (241). The inner end of the telescopic rod (241) slides through and extends into the interior of the shell (21). By varying the extension length of the telescopic rod (241), the stroke of the limiting post (222) of the cutter (221) is limited at different positions.

2. The grooving tool driving device according to claim 1, characterized in that: The limiting posts (222) are arranged at equal intervals from left to right, and their lengths decrease sequentially, with the longest being 100mm and the shortest being 40mm, and the length decreasing by 20mm each time.

3. The grooving tool driving device according to claim 1, characterized in that: The end of the cutter cylinder (23) away from the cutter holder (22) is equipped with a cylinder seat (231), which is fixed to the outer wall of the outer casing (21).

4. The grooving tool driving device according to claim 1, characterized in that: The bottom of both sides of the limiting cylinder (24) is equipped with mounting brackets (242), and the bottom of both mounting brackets (242) is connected and fixed to the outer wall of the outer shell (21).

5. The grooving tool driving device according to claim 1, characterized in that: Several of the cutting blade components (2) are arranged at equal intervals from top to bottom on one side of the blade holder (1).

6. The grooving tool driving device according to claim 1, characterized in that: The inner side of the blade holder (22) is provided with a groove, the cutting cylinder (23) is located in the groove, and one end of the output shaft of the cutting cylinder (23) is fixed on the inner wall of the groove.

7. The grooving tool driving device according to claim 1, characterized in that: The cutter (221) has a trapezoidal structure and is made of stainless steel.

8. The grooving tool driving device according to claim 1, characterized in that: The surface of the limiting post (222) is fitted with a rubber pad.

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