Swing arm reciprocating type two-station flap wheel forming machine

Abstract

The utility model belongs to the technical field of flap wheel production, and particularly relates to a swing arm reciprocating type two-station flap wheel forming machine which is used for cutting off a sand strip and installing the sand strip in an indexing groove die and comprises a rack, a sand strip conveying mechanism, a sand strip cutting mechanism, a rotary driving mechanism and a swing arm driving mechanism. The sanding strip conveying mechanism is used for conveying sanding strips. And the sanding strip cutting mechanism is used for cutting the sanding strip conveyed by the sanding strip conveying mechanism to form a sanding sheet. The output end of the rotation driving mechanism is connected with the indexing groove mold so as to drive the indexing groove mold to rotate. The swing arm driving mechanism comprises two sets of swing arm driving pieces located on the machine frame, a double-arc coincidence groove is further formed in the machine frame, the ends of the double-arc coincidence groove are the first end of a head, the second end of the head and the common tail, the two swing arm driving pieces are located on the two sides of the double-arc coincidence groove respectively, and the driving ends of the two swing arm driving pieces are connected with the rotary driving mechanism. And the two rotary driving mechanisms are driven to move on a track from one end of the head to the tail and a track from two ends of the head to the tail respectively.

Description

Technical Field

[0001] The utility model belongs to the technical field of flap wheel production, in particular to a swing-arm reciprocating two-station flap wheel forming machine. Background Art

[0002] The automatic assembly and molding of abrasive cloth flake wheels is a production process in which the abrasive strips are divided into many small pieces of abrasive sheets and assembled with pallets. At present, the abrasive cloth flake wheels produced by the industry factories are basically assembled and molded by hand, which is slow, inefficient, labor-intensive and has high production costs for enterprises.

[0003] Some manufacturers use automated equipment to assemble rotary discs with two or more stations. These machines connect a turntable or arm via a divider or planetary reduction gearbox, evenly spaced around the outer circumference of the turntable. A servo motor indexes the slots. The divider station, through the gears connected to the indexing slot servo motor, creates play. Furthermore, play within the divider itself can cause misalignment between the indexing slot mold slot and the material exit, preventing the emery cloth from being inserted properly into the mold slot. Due to unstable operation and low accuracy, their use has largely been discontinued, with manual labor replacing machine assembly for paddle wheel products. Summary of the Invention

[0004] The utility model aims to provide a swing-arm reciprocating two-station paddle wheel forming machine, aiming to solve the problems of low precision, unstable operation and low efficiency of paddle wheel machines.

[0005] To achieve the above objectives, the present invention provides a swing-arm reciprocating two-station paddle wheel forming machine for cutting sand strips and installing them in a graduated groove mold. The machine comprises a frame, a sand strip conveying mechanism, a sand strip cutting mechanism, a rotary drive mechanism, and a swing-arm drive mechanism. The frame is also provided with vertically mounted support frames. The sand strip conveying mechanism is used to convey sand strips. The sand strip cutting mechanism cuts the sand strips transported by the sand strip conveying mechanism into sand flakes. The output end of the rotary drive mechanism is connected to the graduated groove mold to drive the graduated groove mold to rotate. The swing-arm drive mechanism includes two sets of swing-arm drive members located on the frame. The frame is also provided with a double-arc overlap groove, the ends of which are respectively configured as a head end, a head end, and a common tail end. Two swing-arm drive members are located on either side of the double-arc overlap groove, and their drive ends are connected to the rotary drive mechanism to drive the two rotary drive mechanisms to move along a trajectory from the head end to the tail end and a trajectory from the head end to the tail end, respectively.

[0006] The sand bar conveying mechanism further comprises a conveyor track, a conveyor motor, a transmission wheel, and a pressure wheel. The conveyor track, located on the support frame, has a notched slot at its mid-end. The drive end of the conveyor motor, located on the support frame, is connected to the transmission wheel to drive its rotation. The output end of the conveyor track corresponds to the tail end of the double-arc overlapping slot. The transmission wheel is located at one end of the notched slot, and a movable pressure wheel is located at the other end of the notched slot. The transmission wheel and pressure wheel cooperate to control the transport of the sand bars.

[0007] Furthermore, the pressure wheel is also connected to the cylinder assembly, which includes a cylinder and a connecting piece. The cylinder is installed on the support frame, and the driving end of the cylinder is connected to the connecting piece. The other end of the connecting piece is perpendicular to the limiting wheel to drive the pressure wheel to move forward or backward.

[0008] Furthermore, the sand strip cutting mechanism includes an eccentric sleeve, a connecting rod, a cutting motor, a slide rail part, and a movable knife. The cutting motor is provided on the support frame, and the driving end of the cutting motor is connected to the eccentric sleeve. One end of the connecting rod is rotatably mounted on the eccentric sleeve, and the other end is rotatably connected to the slide rail part located on the support frame. The other end of the slide rail part is fixed with a movable knife, and the movable knife is driven by the cutting motor to move toward the outlet end of the conveying track to cut the sand strips.

[0009] Furthermore, the swing arm drive mechanism also includes a swing arm plate, the swing arm drive component adopts a swing arm cylinder, the output end of the swing arm drive component is connected to the swing arm plate, and the other end of the swing arm plate is connected to the rotation drive mechanism to drive it to swing on the double arc overlapping groove.

[0010] Furthermore, the rotary drive mechanism includes a rotary motor and a fixed base, wherein the rotary motor is connected to the swing arm plate via the fixed base. The driving end of the rotary motor is connected to the bottom end of the indexing groove mold, and a vertical guide column is provided upward at the middle end of the rotary motor to drive the indexing groove mold to rotate.

[0011] Furthermore, one end of the head portion and two ends of the head portion of the double-arc overlapping slot point in opposite directions respectively.

[0012] Furthermore, a downward driving mechanism is provided on the support frame, including a downward driving cylinder and a hollow cylinder with an opening downward. The driving end of the downward driving cylinder is connected to the hollow cylinder to drive it to move up and down; a vertical guide column is provided upward at the middle end of the rotating motor, and the guide column is embedded in the hollow cylinder to limit the separation of the dividing groove mold.

[0013] Furthermore, the driving end of the rotating motor is fixedly connected to the mold positioning chassis, and the bottom end or outer circular side of the indexing groove mold is provided with a positioning concave and convex part, and the bottom or outer circular side of the indexing groove mold is connected to the mold positioning chassis through the positioning concave and convex part.

[0014] Furthermore, an induction iron for induction positioning is provided on the side end of the mold positioning chassis, and an induction probe for detecting the induction iron is provided on the corresponding swing arm.

[0015] The above one or more technical solutions in the swing arm reciprocating two-station flap wheel forming machine provided by the embodiment of the utility model have at least the following technical effects:

[0016] The present invention realizes a fully automated process of transporting, cutting, positioning and installing sand strips into the indexing groove mold through an integrated design. Process: Start the equipment, and the sand strips enter the cutting area through the conveying mechanism; the cutting mechanism automatically cuts the sand strips according to preset parameters to form sand sheets; the two swing arm driving parts on the swing arm driving mechanism respectively drive the two rotary driving mechanisms along different trajectories (from one end of the head to the tail and from both ends of the head to the tail) in the double arc overlapping groove alternately to improve production efficiency; the rotary driving mechanism drives the indexing groove mold to rotate and sequentially receive the cut sand sheets. The automated cutting and installation process ensures the accuracy of the sand sheet size and the accuracy of the installation position, reduces the scrap rate, and improves the product output rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a structural diagram of a swing-arm reciprocating two-station flap wheel forming machine provided in an embodiment of the present utility model.

[0019] Figure 2 Part of the swing arm reciprocating two-station paddle wheel forming machine provided by the embodiment of the utility model Figure 1 .

[0020] Figure 3 Part of the swing arm reciprocating two-station paddle wheel forming machine provided by the embodiment of the utility model Figure 2 .

[0021] Figure 4 A partial top view of a swing arm reciprocating two-station flap wheel forming machine provided by an embodiment of the utility model Figure 3 .

[0022] Figure 5 This is a disassembled diagram of the rotary drive mechanism of the swing-arm reciprocating two-station flap wheel forming machine provided in an embodiment of the present utility model.

[0023] Description of the main reference numerals: 100, frame; 110, support frame; 120, indexing groove mold; 130, double arc overlap groove; 140, one end of the head; 150, two ends of the head; 160, tail; 170, guide column;

[0024] 200, sand strip conveying mechanism; 210, conveying track; 220, conveying motor; 230, driving wheel; 240, pressure wheel; 250, notch groove;

[0025] 300, sand strip cutting mechanism; 310, eccentric sleeve; 320, connecting rod; 330, cutting motor; 340, slide rail; 350, moving knife;

[0026] 400, rotary drive mechanism; 410, rotary motor; 420, fixed seat;

[0027] 500, swing arm driving mechanism; 510, swing arm plate; 520, swing arm cylinder;

[0028] 600, assembly; 610, cylinder; 620, connector;

[0029] 700, downward pressure drive mechanism; 710, downward pressure cylinder; 720, hollow cylinder; 800, mold positioning chassis; 810, positioning chassis groove; 820, positioning protrusion; 830, induction iron; 840, blocking member; 850, induction probe. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention in detail. Figures 1 to 5 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 5 The described embodiments are exemplary and are intended to explain the embodiments of the present invention, but should not be understood as limiting the present invention.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0033] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0034] 1. In the embodiment of the present utility model, Figures 1 to 5 As shown, this case provides a swing-arm reciprocating two-station flap wheel forming machine used to cut sand strips and install them in a graduated groove mold 120. It includes a frame 100, a sand strip conveying mechanism 200, a sand strip cutting mechanism 300, a rotary drive mechanism 400, and a swing-arm drive mechanism 500. The frame 100 is also equipped with vertical support frames 110. The sand strip conveying mechanism 200 is used to convey sand strips. The sand strip cutting mechanism 300 cuts the sand strips transported by the sand strip conveying mechanism 200 into sand sheets. The output end of the rotary drive mechanism 400 is connected to the graduated groove mold 120 to drive the graduated groove mold 120 to rotate. The swing arm drive mechanism 500 includes two sets of swing arm drive components located on the frame 100. The frame 100 is also provided with a double arc overlap groove 130. The ends of the double arc overlap groove 130 are respectively set as the head end 140, the head ends 150 and the common tail 160. The two swing arm drive components are respectively located on both sides of the double arc overlap groove 130, and their driving ends are connected to the rotary drive mechanism 400 to drive the two rotary drive mechanisms 400 to move respectively on the trajectory from the head end 140 to the tail 160 and the trajectory from the head ends 150 to the tail 160.

[0035] Specifically, the present invention, through an integrated design, achieves a fully automated process for transporting, cutting, positioning, and installing sand strips into the indexing groove mold 120. The process begins with the equipment being started, and the sand strips enter the cutting area via a conveying mechanism. The cutting mechanism automatically cuts the sand strips according to preset parameters, forming sand sheets. The two swing-arm drive members on the swing-arm drive mechanism 500 respectively drive the two rotary drive mechanisms 400 along different trajectories (from the head end 140 to the tail end 160 and from the head end 150 to the tail end 160) in the double-arc overlap groove 130, alternating between them. This provides a gap-free fit and ensures high and accurate repeatable positioning of the indexing groove mold 120. The head end 140 and the head end 150 of the double-arc overlap groove 130 point in opposite directions. The rotary drive mechanism 400 then rotates the indexing groove mold 120 to sequentially receive the cut sand sheets. This automated cutting and installation process ensures the accuracy of the sand sheet dimensions and installation position, reducing scrap rates and increasing product yield.

[0036] Second, in another embodiment of the utility model, as Figures 1 to 3 As shown, the sand bar conveying mechanism 200 includes a conveying track 210, a conveying motor 220, a transmission wheel 230, and a pressure wheel 240. A notch 250 is provided at the middle end of the conveying track 210, located on the support frame 110. The driving end of the conveying motor 220, located on the support frame 110, is connected to the transmission wheel 230 to drive its rotation. The output end of the conveying track 210 corresponds to the tail 160 of the double-arc overlapping groove 130. The transmission wheel 230 is located at one end of the notch 250, and the other end of the notch 250 corresponds to the movable pressure wheel 240. The design of the notch 250 allows the two wheels to directly contact the sand bar and control the start and stop of the conveying. The transmission wheel 230 and the pressure wheel 240 cooperate with each other to control the conveying of the sand bar. The pressure wheel 240 is also connected to the positioning assembly 600, which includes a cylinder 610 and a connector 620. The positioning cylinder 610 is mounted on the support frame 110. The driving end of the positioning cylinder 610 is connected to the connector 620, and the other end of the connector 620 is perpendicular to the limiting wheel 240 to drive the limiting wheel 240 forward or backward. Specifically, the sand strip conveying mechanism 200, as a key component of the entire molding machine, is responsible for stably and continuously conveying the sand strips to the cutting mechanism for subsequent processing. The sand strips are placed on the conveying track 210 and extended between the transmission wheel 230 and the pressure wheel 240. The initial gap between the two wheels is less than the thickness of the sand strip to limit the sand strip. During the conveying process, the conveying motor 220 drives the transmission wheel 230 to rotate to drive the sand strip out; the limiting wheel 240 moves in the direction away from or towards the sand strip through the positioning assembly 600 to release or limit the movement of the sand strip.

[0037] 3. In another embodiment of the utility model, Figures 1 to 3As shown, the sand strip cutting mechanism 300 includes an eccentric sleeve 310, a connecting rod 320, a cutting motor 330, a slide rail 340, and a movable blade 350. The cutting motor 330 is mounted on the support frame 110. The driving end of the cutting motor 330 is connected to the eccentric sleeve 310. One end of the connecting rod 320 is rotatably mounted on the eccentric sleeve 310, and the other end is rotatably connected to the slide rail 340 located on the support frame 110. The movable blade 350 is fixedly mounted on the other end of the slide rail 340. The movable blade 350 is driven by the cutting motor 330 to move toward or away from the exit end of the conveyor track 210. Specifically, when the sand strip is transported to the cutting position by the conveyor mechanism, the cutting motor 330 is activated. The cutting motor 330 drives the eccentric sleeve 310 to rotate. Due to the design of the eccentric sleeve 310, its rotation produces radial displacement. The radial displacement of the eccentric sleeve 310 is transmitted to the movable blade 350 via the connecting rod 320, causing the movable blade 350 to reciprocate along the slide rail 340, moving away from and toward the exit of the conveyor track 210. After the sand strip is cut, it falls into the indexing groove mold 120. The cutting motor 330 continues to drive the eccentric sleeve 310 to rotate, returning the movable blade 350 to its initial position, ready for the next cut. The coordination of the eccentric sleeve 310, connecting rod 320, and slide rail 340 enables precise reciprocating motion of the movable blade 350, ensuring accurate and consistent sand strip cutting.

[0038] 4. In another embodiment of the utility model, Figures 4-5 As shown, the swing-arm drive mechanism 500 also includes a drive plate 510. The swing-arm drive element utilizes a swing-arm cylinder 520. The output end of the swing-arm drive element is connected to the drive plate 510, and the other end of the drive plate 510 is connected to the rotary drive mechanism 400 to drive it to swing within the double-arc overlap groove 130. Specifically, the swing-arm cylinder 520 is capable of precise response, ensuring accurate movement and positioning of the rotary drive mechanism 400 within the double-arc overlap groove 130. The frame 100 is also provided with a stopper 840, located near the rear end 160 of the double-arc overlap groove 130, to prevent the rotary drive mechanism 400 from being moved by the swing-arm drive mechanism 500.

[0039] 5. In another embodiment of the utility model, as Figures 4-5As shown, the rotary drive mechanism 400 includes a rotary motor 410 and a fixed base 420. The rotary motor 410 is connected to the swing arm plate 510 via the fixed base 420. The driving end of the rotary motor 410 is connected to the bottom end of the indexing groove mold 120. A vertical guide post 170 is provided at the middle end of the rotary motor 410 to drive the indexing groove mold 120 to rotate. The support frame 110 is also provided with a downward pressure drive mechanism 700, which includes a downward pressure cylinder 710 and a downwardly opening hollow cylinder 720. The driving end of the downward pressure cylinder 710 is connected to the hollow cylinder 720 to drive its upward and downward movement. A vertical guide post 170 is provided at the middle end of the rotary motor 410. The guide post 170 is embedded in the hollow cylinder 720 to prevent the indexing groove mold 120 from disengaging. Under the restraining action of the hollow cylinder 720, the indexing groove mold 120 maintains a stable downward pressure during rotation, ensuring uniform and consistent leaf wheel forming. At the same time, the close fit between the guide post 170 and the hollow cylinder 720 also prevents the mold from deflecting or shaking during the rotation process.

[0040] 6. In another embodiment of the utility model, as Figure 5 As shown, the driving end of the rotary motor 410 is fixedly connected to the mold positioning chassis 800, and the bottom or outer circumferential side of the indexing groove mold 120 (the positioning chassis groove 810) is provided with a positioning concave-convex part 820. The bottom or outer circumferential side of the indexing groove mold 120 is connected to the mold positioning chassis 800 through the positioning concave-convex part 820. Specifically, the positioning structure of the indexing groove mold 120 is improved. Two square positioning concave-convex parts 820 are added to the bottom surface of the indexing groove mold 120. The square positioning concave-convex parts 820 and the positioning chassis groove 810 of the indexing groove mold 120 fit perfectly, and the indexing groove mold 120 and the mold positioning chassis 800 will not slip against each other. Compared with the case without the protrusion, the positioning accuracy is higher and more stable.

[0041] 7. In another embodiment of the utility model, as Figure 5 As shown, the side end of the mold positioning chassis 800 is provided with an induction iron 830 for induction positioning, which has a large induction area and high positioning accuracy. The corresponding swing arm plate 510 is provided with an induction probe 850 for detecting the induction iron. There are three bosses (not specified) at the bottom of the indexing slot mold 120, which just fit and snap into the positioning chassis groove 810. The induction iron 830 is at the side end of the mold positioning chassis 800 and is used to position the induction iron 830. The indexing slot mold 120 of similar products returns to the origin through the proximity switch induction control of the small screws installed on the indexing slot mold 120. Because the diameter of the small screws is very small and there are deviations when the small screws are manually installed, the induction origin positions of different slot molds will be different, causing deviations.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A swing arm reciprocating two-station flap wheel forming machine, used to cut sand strips and install them in the indexing groove mold, including a frame, characterized by: The racks are also provided with A vertically arranged support frame; Sand strip conveying mechanism, used for conveying sand strips; a sand strip cutting mechanism for cutting the sand strips transported by the sand strip conveying mechanism to form sand sheets; A rotary drive mechanism, the output end of which is connected to the indexing groove mold to drive the indexing groove mold to rotate; The swing arm driving mechanism includes two groups of left and right swing arm driving parts located on the frame. The frame is also provided with a double arc overlap groove. The ends of the double arc overlap groove are respectively set as one head end, two head ends and a common tail. The left and right swing arm driving parts are respectively located on both sides of the double arc overlap groove, and their driving ends are connected to the rotary driving mechanism to drive the left and right swing arms to perform reciprocating arc swings on the trajectory from one head end to the tail of the double arc overlap groove and the trajectory from the two head ends to the tail.

2. The swing arm reciprocating two-station flap wheel forming machine according to claim 1, characterized in that: The sand bar conveying mechanism includes a conveying track, a conveying motor, a transmission wheel and a transmission pressure wheel. The middle end of the conveying track located on the support frame is provided with a notch groove, and the output end of the conveying track corresponds to the tail of the double-arc overlap groove; the driving end of the conveying motor located on the support frame is connected to the transmission wheel to drive it to rotate; The transmission wheel is arranged at one end of the notch groove, and a movable transmission pressure wheel is correspondingly provided at the other end of the notch groove; the transmission wheel and the transmission pressure wheel clamp the sand strip to each other to control the sand strip to move toward the indexing groove mold.

3. The swing arm reciprocating two-station flap wheel forming machine according to claim 2, characterized in that: The transmission pressure wheel is also connected to the pressure wheel cylinder assembly to drive the transmission pressure wheel and the transmission wheel to press or loosen.

4. The swing arm reciprocating two-station flap wheel forming machine according to claim 2, characterized in that: The sand strip cutting mechanism includes an eccentric sleeve, a connecting rod, a cutting motor, a slide rail part, and a movable knife. The cutting motor is provided on the support frame, and the driving end of the cutting motor is connected to the eccentric sleeve. One end of the connecting rod is rotatably mounted on the eccentric sleeve, and the other end is rotatably connected to the slide rail part located on the support frame. The movable knife is fixedly provided at the other end of the slide rail part, and is driven by the cutting motor to move toward the outlet end of the conveying track to cut the sand strips.

5. The swing arm reciprocating two-station flap wheel forming machine according to claim 1, characterized in that: The swing arm driving mechanism also includes a driving plate. The swing arm driving member adopts a swing arm cylinder. The output end of the swing arm driving member is connected to the driving plate. The other end of the driving plate is connected to the rotary driving mechanism to drive it to swing back and forth in an arc shape.

6. The swing arm reciprocating two-station flap wheel forming machine according to claim 5, characterized in that: The indexing groove mold driving mechanism includes a rotating motor and a fixed seat, and the rotating motor is connected to the driving plate through the fixed seat; the driving end of the rotating motor is connected to the bottom end of the indexing groove mold, and the middle end of the rotating motor is provided with a vertical guide column upward to drive the indexing groove mold to rotate.

7. The swing arm reciprocating two-station flap wheel forming machine according to claim 1, characterized in that: The head end and the head ends of the double-arc overlap groove point in opposite directions respectively.

8. The swing arm reciprocating two-station flap wheel forming machine according to claim 6, characterized in that: The support frame is also provided with a downward driving mechanism, including a downward pressing cylinder and a hollow cylinder with an opening downward. The driving end of the downward pressing cylinder is connected to the hollow cylinder to drive it to move up and down; a vertical guide column is provided upward at the middle end of the rotating motor, and the guide column is embedded in the hollow cylinder to limit the separation of the dividing groove mold.

9. The swing arm reciprocating two-station flap wheel forming machine according to claim 6, characterized in that: The driving end of the rotating motor is fixedly connected to the mold positioning chassis, and the bottom or outer circular side of the indexing groove mold is provided with a positioning concave and convex part, and the bottom or outer circular side of the indexing groove mold is connected to the mold positioning chassis through the positioning concave and convex part.

10. The swing arm reciprocating two-station flap wheel forming machine according to claim 9, characterized in that: The side end of the mold positioning chassis is provided with an induction iron for induction positioning, and the corresponding swing arm is provided with an induction probe for detecting the induction iron.

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