Automatic loading and unloading device of centerless grinding machine

Abstract

The utility model discloses an automatic feeding and discharging device of centerless grinding machine relates to centerless grinding machine feeding and discharging equipment technical field, include: centerless grinding machine body, discharging mechanism, the discharging mechanism is arranged in the side of centerless grinding machine body, the utility model discloses material blocking clamping plate realizes quick installation through the insertion cooperation of both sides clamping block and material blocking plate slot, and the automatic locking positioning of trapezoidal jack driven cooperation support spring, the design supports operator according to different workpiece pipe diameter quick replacement corresponding height's material blocking clamping plate, guarantees material export end always keeps single piece through state, significantly improves the compatibility of equipment to different specifications workpieces, and first motor directly drives the rotation of the lack of side material blocking disc, and through the adjustment of its rotating speed can change the frequency of the notch and the lower end alignment of material blocking clamping plate, and this pure mechanical rate control scheme can accurately adjust the discharging quantity in unit time without complex sensor or programming system, and adapts to different processing rhythm demand.

Description

Technical Field

[0001] This utility model relates to the technical field of loading and unloading equipment for centerless grinders, and in particular to an automatic loading and unloading device for centerless grinders. Background Technology

[0002] A centerless grinder is a type of grinder that does not require workpiece axis positioning for grinding. It mainly consists of three mechanisms: a grinding wheel, an adjusting wheel, and a workpiece support. The grinding wheel actually performs the grinding work, while the adjusting wheel controls the rotation of the workpiece and the feed rate of the workpiece.

[0003] In existing technologies, most feed troughs are arranged at an angle, and there is no spacer between workpieces. The workpieces are conveyed by gravity and slide down automatically, which makes it easy for the workpieces to roll or fall on the feed trough, affecting the conveying effect and making it difficult to ensure stable and uniform feeding of materials. It also makes it difficult to control the feeding rate. To address these issues, an automatic loading and unloading device for a centerless grinder is provided. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic loading and unloading device for a centerless grinder, which can accurately adjust the loading quantity per unit time, avoid material stacking, adapt to different processing cycle requirements, and solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic loading and unloading device for a centerless grinder, comprising:

[0006] Centerless grinder body;

[0007] The unloading mechanism is provided on the side of the centerless grinder body and is used to receive the finished product of the centerless grinder and guide it out.

[0008] The grinding machine feeding mechanism is used to push stacked materials into the centerless grinding machine sequentially at a set rate. The grinding machine feeding mechanism includes a fixed base, and four sets of electric telescopic rods are fixedly connected to the top of the fixed base. The movable ends of the four sets of electric telescopic rods are fixedly connected to the feeding hoppers.

[0009] As a further embodiment of this utility model: a feed inlet is provided above the feeding hopper; the lower bottom wall of the inner cavity of the feeding hopper is inclined; two sets of baffle plate slots are symmetrically provided above the feeding hopper; two sets of mounting blocks are fixedly connected above the feeding hopper; a top block groove is provided inside the mounting block; a trapezoidal top block is provided inside the top block groove; a support spring is fixedly connected between the trapezoidal top block and the inner wall of the top block groove; a prying slot is provided inside the top block groove, extending through to the top of the mounting block; a baffle plate is provided above the feeding hopper; a notched baffle plate is rotatably connected to the side of the baffle plate; and the side of the notched baffle plate is fixed... A first motor is connected to the hopper. A side fixing plate is fixedly connected to the side of the hopper. Two sets of material support rollers are rotatably connected to the lower part of the side fixing plate. A side fixing box is fixedly connected to the side of the side fixing plate. A second motor is fixedly connected to the outer side of the side fixing box. A first sprocket and a second sprocket are rotatably connected to the inner side of the side fixing box. A transmission chain meshes with the outer sides of the first sprocket and the second sprocket. A connecting arm is rotatably connected to the side of one set of chain links of the transmission chain. An inner sliding plate is rotatably connected to the other end of the connecting arm. A connecting long rod is fixedly connected to the side of the inner sliding plate. A material pusher plate is fixedly connected to the other end of the connecting long rod.

[0010] As a further embodiment of this utility model: the feeding mechanism includes a feeding inclined guide tube, and a perforated fixing plate is fixedly connected to the side of the feeding inclined guide tube.

[0011] As a further improvement of this utility model: the highest point is below the feed inlet of the internal cavity of the feeding hopper, and the lowest point is at the material outlet end of the feeding hopper.

[0012] As a further embodiment of this utility model: when the supporting spring is not subjected to external force and naturally extends, the inclined part of the trapezoidal top block just extends out of the top block groove, and a paddle that passes through the paddle groove is fixedly connected above the trapezoidal top block.

[0013] As a further improvement of this utility model: the size of the baffle plate is adapted to the inner cavity of the feed inlet, and the baffle plate is provided with locking blocks on both sides that are adapted to the baffle plate slot. When the locking blocks on both sides of the baffle plate are fully engaged in the baffle plate slot, the lower end of the trapezoidal top block can just hold the upper end of the baffle plate.

[0014] As a further embodiment of this utility model: the rotating shaft of the first motor passes through the edge-blocking disc and is fixedly connected to the edge-blocking plate; the edge-fixing box is a box-shaped housing with an open bottom; and the rotating shaft of the second motor passes through the edge-fixing box to its inner cavity and is fixedly connected to the first sprocket.

[0015] As a further embodiment of this utility model: a sliding groove is provided on the inner side wall of the side fixing box, the height of the sliding groove is located at the middle position of the upper and lower sides of the transmission chain, a limiting slider adapted to the sliding groove is fixedly connected to the side of the inner sliding plate, the inner sliding plate is slidably connected to the inner side wall of the side fixing box, and the material pusher slides inside the side fixing plate.

[0016] As a further improvement of this utility model, the inner side of the perforated fixing plate is provided with multiple sets of through holes, which facilitates the fixing of the screw to the surface of the centerless grinder body.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, the baffle plate is quickly installed by the insertion and cooperation of the two side blocks with the baffle plate slot. With the help of the trapezoidal top block driven by the support spring, it is automatically locked and positioned. This design allows the operator to quickly change the baffle plate of the corresponding height according to different workpiece pipe diameters, ensuring that the material outlet end always maintains a single-piece passing state, and significantly improving the equipment's compatibility with workpieces of different specifications.

[0019] 2. In this utility model, the first motor directly drives the notched baffle to rotate. By adjusting its speed, the frequency at which the notch aligns with the lower end of the baffle plate can be changed. This purely mechanical speed control scheme does not require complex sensors or programming systems and can accurately adjust the amount of material fed per unit time to adapt to different processing cycle requirements. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0022] Figure 3 This is a cross-sectional structural diagram of the grinding machine loading mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the inner sliding plate in this utility model;

[0024] Figure 5 This is a schematic diagram of the transmission chain in this utility model;

[0025] Figure 6 This is a schematic diagram of the structure at point A in this utility model.

[0026] In the diagram: 1. Centerless grinder body; 2. Feeding mechanism; 21. Feeding oblique guide tube; 22. Perforated fixing plate; 3. Grinding machine feeding mechanism; 31. Fixed base; 32. Electric telescopic rod; 33. Feeding hopper; 34. Feed inlet; 35. Mounting block; 36. Top block slot; 37. Trapezoidal top block; 38. Paddle slot; 39. Material stop plate; 310. Edge-cutting material stop plate; 311. First motor; 312. Side fixing plate; 313. Material support roller; 314. Side fixing box; 315. Second motor; 316. First sprocket; 317. Second sprocket; 318. Transmission chain; 319. Connecting rotating arm; 320. Inner sliding plate; 321. Connecting long rod; 322. Material push plate; 323. Material stop plate slot; 324. Support spring. Detailed Implementation

[0027] 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.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0029] Reference Figures 1 to 6 In this embodiment of the present invention, an automatic loading and unloading device for a centerless grinder includes:

[0030] Centerless grinder body 1;

[0031] The unloading mechanism 2 is provided on the side of the centerless grinder body 1. The unloading mechanism 2 is used to receive the finished product of the centerless grinder and guide it out.

[0032] The grinding machine feeding mechanism 3 is used to push stacked materials into the centerless grinding machine in sequence at a set rate. The grinding machine feeding mechanism 3 includes a fixed base 31, and four sets of electric telescopic rods 32 are fixedly connected above the fixed base 31. The movable ends of the four sets of electric telescopic rods 32 are fixedly connected to the feeding hoppers 33.

[0033] A feed inlet 34 is provided above the feeding hopper 33. The bottom wall of the inner cavity of the feeding hopper 33 is inclined, with the highest point corresponding to the feed inlet 34 and the lowest point corresponding to the material outlet end of the feeding hopper 33, facilitating material flow. Two sets of baffle plate slots 323 are symmetrically provided above the feeding hopper 33. Two sets of mounting blocks 35 are fixedly connected above the feeding hopper 33. A top block groove 36 is provided inside the mounting block 35. A trapezoidal top block 37 is provided inside the top block groove 36. A support spring 324 is fixedly connected between the trapezoidal top block 37 and the inner wall of the top block groove 36. A pry groove 38 is provided inside the top block groove 36, extending through to the top of the mounting block 35. When the support spring 324 is naturally extended without external force, the inclined part of the trapezoidal top block 37 just extends. Out of the outer side of the top block groove 36, a lever is fixedly connected above the trapezoidal top block 37, penetrating the lever groove 38. A baffle plate 39 is set above the feeding hopper 33. The size of the baffle plate 39 is adapted to the inner cavity of the feed inlet 34. The baffle plate 39 has locking blocks on both sides that are adapted to the baffle plate slot 323. When the locking blocks on both sides of the baffle plate 39 are fully engaged in the baffle plate slot 323, the lower end of the trapezoidal top block 37 can just hold the upper end of the baffle plate 39. Different pipe diameters can be adapted by replacing the baffle plate 39 with different heights. The baffle plate 39 is set so that only one set of materials can pass through the material outlet end of the feeding hopper 33 at a time. A notched baffle plate 310 is rotatably connected to the side of the baffle plate 39. A first motor is fixedly connected to the side of the notched baffle plate 310. 311, the rotating shaft of the first motor 311 passes through the notched baffle plate 310 and is fixedly connected to the baffle plate 39. When the notch of the notched baffle plate 310 rotates to be horizontal with the lower end of the baffle plate 39, the plate surface of the notched baffle plate 310 no longer blocks the material at the outlet below the baffle plate 39, allowing the material to pass through. By controlling the rotation speed of the first motor 311, the feeding rate of the material can be controlled. A side fixing plate 312 is fixedly connected to the side of the feeding hopper 33. Two sets of material support rollers 313 are rotatably connected to the lower part of the side fixing plate 312. A side fixing box 314 is fixedly connected to the side of the side fixing plate 312. The side fixing box 314 is a box-shaped shell with an opening at the bottom. A second motor 315 is fixedly connected to the outside of the side fixing box 314. A second motor 315 is rotatably connected to the inside of the side fixing box 314. The device includes a first sprocket 316 and a second sprocket 317. The rotating shaft of the second motor 315 passes through the side fixing box 314 and is fixedly connected to the first sprocket 316 within its inner cavity. A transmission chain 318 meshes with the outer sides of the first sprocket 316 and the second sprocket 317. A connecting arm 319 is rotatably connected to the side of one set of chain links of the transmission chain 318. An inner sliding plate 320 is rotatably connected to the other end of the connecting arm 319. A connecting rod 321 is fixedly connected to the side of the inner sliding plate 320. A material pusher plate 322 is fixedly connected to the other end of the connecting rod 321. A groove is formed on the inner side wall of the side fixing box 314. The height of the groove is located at the midpoint between the upper and lower sides of the transmission chain 318. A limiting slider adapted to the groove is fixedly connected to the side of the inner sliding plate 320.The inner sliding plate 320 is slidably connected to the inner wall of the side fixing box 314, and the material push plate 322 slides inside the side fixing plate 312.

[0034] Using the above scheme: the material is placed horizontally into the feed inlet 34 of the hopper 33, slides along the inclined bottom wall to the material outlet, and the baffle plate 39 is fixed in the baffle plate slot 323 by a locking block. Its lower end restricts only one piece of material to pass through. The trapezoidal top block 37 is positioned by the pushing force of the support spring 324, which clamps the upper end of the baffle plate 39. Pushing the upper piece of the trapezoidal top block 37 outward can compress the support spring 324 to unlock and replace the baffle plate 39 of different heights. The first motor 311 drives the notched baffle plate 310 to rotate. When the notch is flush with the lower end of the baffle plate 39, the material... The material falls through the notch between the two sets of material support rollers 313. The feeding rate is adjusted by controlling the notch exposure frequency per unit time through the first speed-regulating motor 311. The second motor 315 drives the first sprocket 316 to rotate, which drives the transmission chain 318 to circulate. The transmission chain 318 pushes the inner sliding plate 320 to move back and forth along the slide groove of the side fixing box 314 through the connecting rotating arm 319. The inner sliding plate 320 slides on the inside of the side fixing plate 312 through the connecting long rod 321 and the material push plate 322, pushing the single piece of material on the material support roller 313 into the centerless grinding machine body 1.

[0035] The feeding mechanism 2 includes a feeding inclined guide tube 21, and a perforated fixing plate 22 is fixedly connected to the side of the feeding inclined guide tube 21. The perforated fixing plate 22 has multiple sets of through holes on its inner side, which facilitates the fixing of the screw to the surface of the centerless grinder body 1.

[0036] Using the above scheme: the hole fixing plate 22 is fixed to the side of the centerless grinder body 1 by a screw passing through its through hole; after the ground workpiece is discharged from the centerless grinder body 1, it automatically slides down the inclined surface of the feeding guide 21 to the designated receiving position.

[0037] The working principle of this utility model is as follows: The rod-shaped workpiece is stacked horizontally to the feed inlet 34 of the feeding hopper 33. The workpiece slides along the inclined bottom wall of the feeding hopper 33 to the material outlet end. The operator selects the appropriate height of the baffle plate 39 according to the diameter of the workpiece tube and inserts the two side blocks into the baffle plate slot 323. At this time, the trapezoidal top block 37 automatically locks the upper end of the baffle plate 39 under the elastic force of the support spring 324. The overall height of the feeding hopper 33 is adjusted by the electric telescopic rod 32 so that its material outlet end is aligned with the feed inlet of the centerless grinder body 1.

[0038] The lower end of the baffle plate 39 restricts the material outlet, allowing only one workpiece to pass at a time. The first motor 311 is started to drive the edge-notched baffle plate 310 to rotate. When the notch of the edge-notched baffle plate 310 rotates to be flush with the lower end of the baffle plate 39, the workpiece falls through the notch between the two sets of material support rollers 313. By adjusting the speed of the first motor 311, the exposure frequency of the notch of the edge-notched baffle plate 310 is changed, and the number of materials discharged per unit time is precisely controlled.

[0039] The second motor 315 drives the first sprocket 316 to rotate, which in turn drives the second sprocket 317 to rotate synchronously via the transmission chain 318. During the movement of the transmission chain 318, the connecting arm 319, which is fixed to one of the chain links, pushes the inner sliding plate 320, causing it to reciprocate linearly along the groove on the inner side wall of the side fixing box 314 via the limiting slider on the side. The inner sliding plate 320 is linked by the connecting rod 321 to the material push plate 322, which slides synchronously inside the side fixing plate 312, pushing the single workpiece on the material support roller 313 horizontally into the processing area of ​​the centerless grinder body 1.

[0040] After the workpiece is ground by the centerless grinder body 1, it automatically slides into the feed guide 21 fixed on the side from the discharge port. The hole fixing plate 22 is fixed by connecting the centerless grinder body 1 through the screw. The workpiece slides down the inclined surface of the feed guide 21 by gravity and finally reaches the designated collection position.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic loading and unloading device for a centerless grinder, characterized in that, include: Centerless grinder body (1); The unloading mechanism (2) is provided on the side of the centerless grinder body (1) and is used to receive the finished product of the centerless grinder and guide it out. The grinding machine feeding mechanism (3) is used to push stacked materials into the centerless grinding machine in sequence at a set rate. The grinding machine feeding mechanism (3) includes a fixed base (31). Four sets of electric telescopic rods (32) are fixedly connected above the fixed base (31). The movable ends of the four sets of electric telescopic rods (32) are fixedly connected to the feeding hopper (33).

2. The automatic loading and unloading device for a centerless grinder according to claim 1, characterized in that, The feeding hopper (33) has a feeding port (34) at its top. The bottom wall of the inner cavity of the feeding hopper (33) is inclined. Two sets of baffle plate slots (323) are symmetrically provided above the feeding hopper (33). Two sets of mounting blocks (35) are fixedly connected above the feeding hopper (33). A top block groove (36) is provided inside the mounting block (35). A trapezoidal top block (37) is provided inside the top block groove (36). A support spring (324) is fixedly connected between the inner wall of the top block groove (37) and the inner wall of the top block groove (36). A paddle groove (38) extending through to the top of the mounting block (35) is provided on the inner side of the top block groove (36). A baffle plate (39) is provided above the feeding hopper (33). A notched baffle plate (310) is rotatably connected to the side of the baffle plate (39). A first motor (311) is fixedly connected to the side of the notched baffle plate (310). The feeding hopper (33) A side fixing plate (312) is fixedly connected to the side. Two sets of material support rollers (313) are rotatably connected to the bottom of the side fixing plate (312). A side fixing box (314) is fixedly connected to the side of the side fixing plate (312). A second motor (315) is fixedly connected to the outside of the side fixing box (314). A first sprocket (316) and a second sprocket (317) are rotatably connected to the inside of the side fixing box (314). A transmission chain (318) meshes with the outside of the first sprocket (316) and the second sprocket (317). A connecting arm (319) is rotatably connected to the side of one set of chain pieces of the transmission chain (318). An inner sliding plate (320) is rotatably connected to the other end of the connecting arm (319). A connecting long rod (321) is fixedly connected to the side of the inner sliding plate (320). A material push plate (322) is fixedly connected to the other end of the connecting long rod (321).

3. The automatic loading and unloading device for a centerless grinder according to claim 1, characterized in that, The feeding mechanism (2) includes a feeding inclined guide tube (21), and a perforated fixing plate (22) is fixedly connected to the side of the feeding inclined guide tube (21).

4. The automatic loading and unloading device for a centerless grinder according to claim 2, characterized in that, The highest point is below the feed inlet (34) of the internal cavity of the feeding hopper (33), and the lowest point is at the material outlet end of the feeding hopper (33).

5. An automatic loading and unloading device for a centerless grinder according to claim 2, characterized in that, When the support spring (324) is naturally extended without being subjected to external force, the inclined part of the trapezoidal top block (37) just extends out of the outside of the top block groove (36), and a paddle that passes through the paddle groove (38) is fixedly connected above the trapezoidal top block (37).

6. An automatic loading and unloading device for a centerless grinder according to claim 2, characterized in that, The size of the baffle plate (39) is adapted to the inner cavity of the feed inlet (34). The baffle plate (39) has a locking block on both sides that is adapted to the baffle plate slot (323). When the locking blocks on both sides of the baffle plate (39) are fully inserted into the baffle plate slot (323), the lower end of the trapezoidal top block (37) can just lock the upper end of the baffle plate (39).

7. An automatic loading and unloading device for a centerless grinder according to claim 2, characterized in that, The rotating shaft of the first motor (311) passes through the edge baffle (310) and is fixedly connected to the baffle plate (39). The edge fixing box (314) is a box-shaped housing with an open bottom. The rotating shaft of the second motor (315) passes through the edge fixing box (314) to its inner cavity and is fixedly connected to the first sprocket (316).

8. An automatic loading and unloading device for a centerless grinder according to claim 2, characterized in that, The inner wall of the side fixing box (314) is provided with a sliding groove, the height of which is located at the middle position of the upper and lower sides of the transmission chain (318). The inner sliding plate (320) is fixedly connected to a limiting slider that matches the sliding groove. The inner sliding plate (320) is slidably connected to the inner wall of the side fixing box (314), and the material push plate (322) slides inside the side fixing plate (312).

9. An automatic loading and unloading device for a centerless grinder according to claim 3, characterized in that, The inner side of the perforated fixing plate (22) has multiple sets of through holes, which facilitate the fixing of the screw to the surface of the centerless grinder body (1).

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