A device for reciprocating saw blades

Abstract

This utility model discloses a device for tooth splitting in reciprocating saws, relating to the field of saw blade production technology. It addresses the problem in existing tooth splitting mechanisms that require intermittent feeding of the saw blade via a conveying mechanism, preventing continuous tooth splitting and resulting in low efficiency. A transverse guide rail is fixedly connected to the upper end of the support base plate. A transverse saw blade clamping groove is provided in the middle of the upper surface of the guide rail. C-shaped support frames are fixedly connected to both sides of the rear end of the upper surface of the guide rail. Feed gears and discharge gears are rotatably connected to both sides of the front end of the C-shaped support frame. Limiting posts are fixedly connected to the middle of both the front and rear end surfaces of the guide rail. Tooth splitting discs are rotatably connected to both ends of the middle of the upper surface of the guide rail and to the upper ends of the two limiting posts. By setting synchronously driven feed and discharge gears, combined with the continuously rotating tooth splitting disc structure, continuous automated tooth splitting of the reciprocating saw blade is achieved, significantly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of saw blade manufacturing technology, specifically a device for tooth splitting in reciprocating saws. Background Technology

[0002] Reciprocating saw blades with alternating tooth arrangements refer to a design where the saw teeth are arranged alternately during the cutting process, typically consisting of left and right teeth. The tips of the left and right teeth are angled towards opposite sides of the saw blade, forming an alternating layout. The main function of this tooth structure is to reduce friction between the saw blade and the workpiece, prevent jamming, and improve cutting efficiency and chip removal. The angle of the left and right teeth allows the kerf width to be slightly larger than the saw blade thickness, preventing the saw blade from overheating or deforming. This design is particularly suitable for cutting materials such as cork and plastic. The saw blades require tooth separation during production using a tooth-separating device.

[0003] For example, patent announcement number CN220921124U discloses a tooth-splitting device for a hand saw blade, including a worktable and a tooth-splitting mechanism mounted on the worktable for splitting the saw blade into teeth. The worktable is equipped with a conveying component for transporting the saw blade, a positioning component for calibrating the saw blade position, and a clamping plate assembly that can slide on the conveying component. The tooth-splitting mechanism includes an arc-shaped groove plate, a swing-angle component, and a tooth-splitting component mounted on the swing-angle component. The swing-angle component is equipped with a flipping component for driving the tooth-splitting component to rotate 180°. One end of the swing-angle component is rotatably mounted on the worktable, and the other end can move within the arc-shaped groove plate. The conveying component can transport the clamping plate assembly onto the tooth-splitting component. This invention has the advantages of simple and reasonable structure, small space occupation, and can process both curved and straight saw blades, while producing saw blades with uniform and precise tooth splitting after processing.

[0004] In the aforementioned technology, the tooth-splitting component of the tooth-splitting device achieves tooth splitting through the staggered relative movement of two push rods. However, this tooth-splitting mechanism requires intermittent conveying by the saw blade conveying mechanism to achieve tooth splitting, and cannot perform continuous tooth splitting operations, resulting in low tooth splitting efficiency. Therefore, the market urgently needs to develop a device for tooth splitting in reciprocating saws to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a device for tooth splitting in reciprocating saws, so as to solve the problem that in the prior art mentioned above, the tooth splitting assembly of the tooth splitting device achieves tooth splitting through the relative movement of two push rods with the teeth staggered. However, this tooth splitting mechanism requires the saw blade conveying mechanism to perform intermittent conveying to achieve tooth splitting, and cannot perform continuous tooth splitting operation, resulting in low tooth splitting efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for reciprocating saw tooth splitting, comprising a support base plate, a transverse guide rail fixedly connected to the upper end of the support base plate, a transverse saw blade clamping groove provided in the middle of the upper end face of the guide rail, a transverse rectangular groove provided in the middle of the lower end face of the guide rail, a rectangular support base inserted inside the rectangular groove, a C-shaped support frame fixedly connected to both sides of the rear end face of the upper end face of the guide rail, a feed gear and a discharge gear rotatably connected to both sides of the front end face of the C-shaped support frame, a limit post fixedly connected to the middle of both the front and rear end faces of the guide rail, and a tooth splitting disc rotatably connected to the upper end of both the front and rear end faces of the middle of the upper end face of the guide rail, respectively, and multiple pusher blocks fixedly connected in a circular array on the outer wall of both tooth splitting discs.

[0007] Preferably, the two sides of the front and rear end faces of the guide rail are fixedly connected to the upper end face of the support base plate by support columns, and the lower end of the saw blade clamping groove is connected to the interior of the rectangular groove.

[0008] Preferably, guide rods are fixedly connected to the upper surface of the support base plate at both ends of the lower end face of the guide rail. The lower end of the rectangular support base extends out of the lower end face of the guide rail and is fixedly connected to guide rings at both ends. The four guide rods pass through the interior of the four guide rings respectively. An electrically controlled telescopic rod is fixedly installed on one side of the middle part of the upper surface of the support base plate. The upper end of the telescopic rod is fixedly connected to the lower end face of the rectangular support base.

[0009] Preferably, the C-shaped support frame has limit tubes fixedly connected to both sides of the front end face, and a first driving device is fixedly connected to both sides of the rear end face of the C-shaped support frame at the rear end of each of the two limit tubes. A first driving motor is fixedly installed inside each of the two first driving devices, and the two first driving motors are connected to each other through a first synchronizer.

[0010] Preferably, the rear ends of the feed gear and the discharge gear are both fixedly connected to a first rotating shaft. The rear ends of the two first rotating shafts pass through the interiors of the two limiting tubes and extend into the interior of the first driving device and are fixedly connected to the output shaft of the first driving motor.

[0011] Preferably, the lower ends of both limiting posts extend out of the lower ends of the guide rail and are fixedly connected to a second driving device. A second driving motor is fixedly connected inside each of the two second driving devices. The two second driving motors are connected to each other through a second synchronizer. A second rotating shaft is fixedly connected to the middle of the lower ends of both gear plates. The lower ends of the two second rotating shafts pass through the middle of the two limiting posts and extend into the second driving device and are fixedly connected to the output shaft of the second driving motor.

[0012] Preferably, the pusher blocks on the two gear discs mesh in the same way as the two gears, but they do not contact each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by setting synchronously driven feeding gear and discharging gear, and cooperating with the continuously rotating tooth-splitting disc structure, the continuous automated tooth-splitting processing of reciprocating saw blades is realized, which significantly improves production efficiency and solves the problem of low efficiency caused by the need for intermittent conveying in traditional tooth-splitting devices.

[0015] (2) In this utility model, a double-tooth disc mirror symmetrical design is adopted. The left and right teeth of the saw are split by the alternating action of the tooth pusher blocks. The tooth splitting angle is uniform and consistent, the processing accuracy is high, and the tooth splitting disc and the conveying gear run synchronously to ensure the precise control of the tooth splitting distance.

[0016] (3) In this utility model, the adjustable rectangular support base design with electric telescopic rod can adapt to the processing needs of saw blades of different heights. The guide rod and guide ring structure ensure the stability of the lifting process and improve the versatility and reliability of the equipment. Attached Figure Description

[0017] Figure 1 This is a front view of a device for reciprocating saw teeth according to the present invention;

[0018] Figure 2 This is a side sectional view of the feed gear of this utility model;

[0019] Figure 3 This is a side sectional view of the toothed disc of this utility model;

[0020] Figure 4 This is a side sectional view of the guide rod of this utility model.

[0021] In the diagram: 1. Support base plate; 101. Guide rail; 102. Saw blade clamping groove; 103. Rectangular groove; 104. Support column; 105. Guide rod; 106. Electrically controlled telescopic rod; 2. Rectangular support base; 201. Guide ring; 3. C-shaped support frame; 301. Limiting tube; 302. First drive device; 303. First drive motor; 304. First synchronizer; 4. Feed gear; 401. Discharge gear; 402. First rotating shaft; 5. Limiting column; 501. Second drive device; 502. Second drive motor; 503. Second synchronizer; 6. Gear plate; 601. Pushing block; 602. Second rotating shaft. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a device for reciprocating saw teeth division, comprising a support base plate 1, a transverse guide rail 101 fixedly connected to the upper end of the support base plate 1, and support columns 104 fixedly connecting the two sides of the front and rear end faces of the guide rail 101 to the upper end face of the support base plate 1. A transverse saw blade clamping groove 102 is provided in the middle of the upper end face of the guide rail 101, and a transverse rectangular groove 103 is provided in the middle of the lower end face of the guide rail 101. The lower end of the saw blade clamping groove 102 communicates with the interior of the rectangular groove 103. A rectangular support base 2 is inserted into the rectangular groove 103. Guide rods are fixedly connected to the two sides of the lower end face of the guide rail 101 and the upper end face of the support base plate 1. 105. The lower end of the rectangular support base 2 extends out of the lower end face of the guide rail 101 and is fixedly connected to both sides of the front and rear ends with guide rings 201. Four guide rods 105 pass through the interior of the four guide rings 201 respectively. An electrically controlled telescopic rod 106 is fixedly installed on one side of the middle of the upper end face of the support base plate 1. The upper end of the telescopic rod 106 is fixedly connected to the lower end face of the rectangular support base 2. By inserting the reciprocating saw blade into the saw blade clamping groove 102 along one side of the guide rail 101, the upper end face of the rectangular support base 2 supports the lower end of the reciprocating saw blade. At the same time, the height of the rectangular support base 2 is adjusted by the electrically controlled telescopic rod 106 so that the saw teeth of the reciprocating saw blade extend out of the upper end face of the guide rail 101.

[0024] Please see Figure 1 and Figure 2 A C-shaped support frame 3 is fixedly connected to both sides of the rear end of the upper end face of the guide rail 101. A feeding gear 4 and a discharging gear 401 are rotatably connected to both sides of the front end face of the C-shaped support frame 3. Limiting tubes 301 are fixedly connected to both sides of the front end face of the C-shaped support frame 3. A first driving device 302 is fixedly connected to both sides of the rear end face of the C-shaped support frame 3 and to the rear end of each of the two limiting tubes 301. A first driving motor 303 is fixedly installed inside each of the two first driving devices 302. The two first driving motors 303 are connected to each other through a first synchronizer 304. A first rotating shaft 402 is fixedly connected to the middle of the rear end of both the feeding gear 4 and the discharging gear 401. The rear ends of the two first rotating shafts 402 pass through the interiors of the two limiting tubes 301 and extend into the interior of the first driving device 302, and are fixedly connected to the output shaft of the first driving motor 303. The two first driving motors 303 synchronously drive the feed gear 4 and the discharge gear 401 to rotate. When the reciprocating saw blade is inserted into the saw blade clamping groove 102, the upper teeth of the feed gear 4 mesh with the saw teeth of the reciprocating saw blade. When the feed gear 4 rotates, it pushes the reciprocating saw blade to slide laterally along the saw blade clamping groove 102. The discharge gear 401 meshes with the saw teeth of the reciprocating saw blade after the reciprocating saw blade passes through the middle of the guide rail 101, driving the reciprocating saw blade to slide out of the guide rail 101.

[0025] Please see Figure 1 and Figure 3Limiting posts 5 are fixedly connected to the middle of the front and rear end faces of the guide rail 101. Gear plates 6 are rotatably connected to the front and rear ends of the upper end face of the guide rail 101, respectively, and to the upper ends of the two limiting posts 5. Multiple pusher blocks 601 are fixedly connected in a circular array on the outer wall of each gear plate 6. The pusher blocks 601 on the two gear plates 6 mesh with the two gears in the same way but do not contact each other. The lower ends of the two limiting posts 5 extend out of the lower end of the guide rail 101 and are fixedly connected to a second drive device 501. A second drive motor 502 is fixedly connected inside each of the two second drive devices 501. The two second drive motors 502 are connected to each other via a second synchronizer 503. The lower ends of the two gear plates 6 are fixedly connected to... There is a second rotating shaft 602. The lower ends of the two second rotating shafts 602 pass through the middle of the two limiting posts 5 and extend into the interior of the second drive device 501 and are fixedly connected to the output shaft of the second drive motor 502. The two second drive motors 502 drive the two toothed discs 6 to rotate synchronously in a mirror image. The two toothed discs 6, the feed gear 4 and the discharge gear 401 have the same diameter. The second drive motor 502 and the first drive motor 303 have the same speed. When the feed gear 4 drives the reciprocating saw blade to slide along the saw blade clamping groove 102 between the two toothed discs 6, the toothed discs 601 push the saw teeth on the reciprocating saw blade to deflect alternately to both sides when they mesh alternately, so as to realize the toothing operation of the saw teeth on the reciprocating saw blade.

[0026] Working Principle: During operation, the reciprocating saw blade to be processed is inserted into the saw blade clamping groove 102 from one side of the guide rail 101. The height of the rectangular support base 2 is adjusted via the electrically controlled telescopic rod 106, causing the saw blade teeth to protrude from the upper surface of the guide rail 101. The first drive motor 303 is started, driving the feed gear 4 to rotate. The gear teeth mesh with the saw blade teeth to achieve continuous feeding. When the saw blade passes through the two tooth-splitting discs 6, the tooth-splitting discs 6, synchronously driven by the second drive motor 502, drive the pusher blocks 601 to rotate alternately. The pusher blocks 601 of the front and rear tooth-splitting discs 6 push the saw teeth to the left and right sides in a mirror-symmetrical manner, forming an alternating tooth-splitting structure. The saw blade, having completed tooth splitting, continues to be output by the output gear 401, achieving continuous and automated tooth-splitting processing. Throughout the process, the feed gear 4, tooth-splitting discs 6, and output gear 401 maintain synchronous speeds, ensuring uniform tooth spacing and consistent tooth angles.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for reciprocating saw teething, comprising a supporting base plate (1), characterized in that: A transverse guide rail (101) is fixedly connected to the upper end of the support base plate (1). A transverse saw blade clamping groove (102) is provided in the middle of the upper end face of the guide rail (101). A transverse rectangular groove (103) is provided in the middle of the lower end face of the guide rail (101). A rectangular support base (2) is inserted inside the rectangular groove (103). A C-shaped support frame (3) is fixedly connected to both sides of the rear end of the upper end face of the guide rail (101). A feeding gear (4) and a discharging gear (401) are rotatably connected to both sides of the front end face of the C-shaped support frame (3). Limiting posts (5) are fixedly connected to the middle of the front and rear end faces of the guide rail (101). Split tooth discs (6) are rotatably connected to the front and rear ends of the middle of the upper end face of the guide rail (101) and to the upper ends of the two limiting posts (5). Multiple push tooth blocks (601) are fixedly connected in a ring array on the outer wall of the two split tooth discs (6).

2. The device for reciprocating saw teeth according to claim 1, characterized in that: The two sides of the front and rear end faces of the guide rail (101) are fixedly connected to the upper end face of the support base plate (1) by support columns (104), and the lower end of the saw blade clamping groove (102) is connected to the interior of the rectangular groove (103).

3. The device for reciprocating saw teeth according to claim 1, characterized in that: Guide rods (105) are fixedly connected to the upper end face of the support base plate (1) on both sides of the lower end face of the guide rail (101). The lower end of the rectangular support base (2) extends out of the lower end face of the guide rail (101) and is fixedly connected to the upper end face of both sides of the front and rear ends of the guide ring (201). The four guide rods (105) pass through the interior of the four guide rings (201). An electrically controlled telescopic rod (106) is fixedly installed on one side of the middle part of the upper end face of the support base plate (1). The upper end of the telescopic end of the electrically controlled telescopic rod (106) is fixedly connected to the lower end face of the rectangular support base (2).

4. The device for reciprocating saw tooth splitting according to claim 1, characterized in that: The C-shaped support frame (3) has two fixedly connected limit tubes (301) on both sides of its front end face. The C-shaped support frame (3) has two fixedly connected first driving devices (302) on both sides of its rear end face and at the rear ends of the two limit tubes (301). The two first driving devices (302) each have a fixedly installed first driving motor (303) inside. The two first driving motors (303) are connected to each other through a first synchronizer (304).

5. The device for reciprocating saw tooth splitting according to claim 4, characterized in that: The feed gear (4) and the discharge gear (401) are both fixedly connected to the middle of their rear ends with a first rotating shaft (402). The rear ends of the two first rotating shafts (402) pass through the interior of the two limiting tubes (301) and extend into the interior of the first driving device (302) and are fixedly connected to the output shaft of the first driving motor (303).

6. The device for reciprocating saw teeth according to claim 1, characterized in that: The lower ends of the two limiting posts (5) extend out of the lower end of the guide rail (101) and are fixedly connected to the second driving device (501). The two second driving devices (501) are fixedly connected to the second driving motor (502). The two second driving motors (502) are connected to each other through the second synchronizer (503). The lower middle part of the two geared discs (6) is fixedly connected to the second rotating shaft (602). The lower ends of the two second rotating shafts (602) pass through the middle part of the two limiting posts (5) and extend into the second driving device (501) and are fixedly connected to the output shaft of the second driving motor (502).

7. The device for reciprocating saw teeth according to claim 1, characterized in that: The two gear-mounted discs (6) push the tooth blocks (601) in the same way as the two gears, but they do not contact each other.

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