Universal grinding machine for wood board grinding

Abstract

The invention provides a universal grinding machine for wood board grinding, and relates to the technical field of universal grinding machines, the universal grinding machine comprises a plurality of guide sleeves mounted on a middle plate, each guide sleeve is slidably connected with a guide pipe, and every two guide pipes are communicated with an air injection block; and a plurality of transverse pipes and inclined pipes are installed at the two ends of each air injection block correspondingly, and the transverse pipes, the inclined pipes and the guide pipes located on the same side of the air injection blocks communicate with one another. Efficient airflow channels are formed on the two sides of a cutting area generated by high-speed rotation of the grinding disc, when the grinding disc makes contact with the surface of a wood board for machining, generated wood chips can be thrown to the two sides through centrifugal force of the grinding disc, at the moment, the inner spraying pipe generates high-speed airflow, extra kinetic energy is provided for the wood chips, and it is ensured that the wood chips can overcome air resistance and electrostatic adsorption force.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding machines. More specifically, it relates to a universal grinding machine for wood board grinding. Background Art

[0002] In the contemporary wood processing and furniture manufacturing industries, the universal grinding machine, as the core equipment for wood board grinding, undertakes the key process tasks of improving the surface quality of products, enhancing aesthetics and feel. However, in the actual production process, a long-standing technical problem that has plagued the industry has never been effectively solved: the management problem of a large number of fine debris generated during the wood grinding process. When the grinding machine operates at high speed, the intense friction between the grinding wheel and the wood surface will generate an astonishing number of wood chip particles. These particles are usually between 5 - 100 microns in size. Not only are they huge in number, but also widely distributed. The design concept of traditional universal grinding machines mainly focuses on improving grinding accuracy and efficiency, and insufficient consideration is given to the treatment mechanism of the by-products - wood chips generated during the grinding process. Common equipment usually is equipped with simple dust collection devices, such as fixed suction ports or simple deflectors. When facing high-density and high-speed generated wood chip particles in the actual working environment, the collection efficiency of these devices is significantly insufficient. More intractably, some of the wood chips generated during the grinding process will be suspended above the working area due to electrostatic action or air flow turbulence, forming a fine "wood chip cloud". This not only directly interferes with the operator's line of sight, affecting the judgment of grinding accuracy, but also will fall back onto the already ground wood board surface during continuous operation, causing secondary pollution.

[0003] This problem of wood chip residue has caused a series of serious consequences in actual production, directly affecting product quality and production efficiency. First of all, when a large amount of debris accumulates on the grinding surface, it will participate in the grinding process as the "third body" between the abrasive and the grinding wheel, resulting in uneven surface wear and accidental scratches. Especially on high-grade furniture boards that require fine grinding, such defects often mean the scrapping of the whole product. Secondly, the accumulated wood chips will gradually fill the tiny gaps on the surface of the grinding wheel, significantly reducing the effective grinding performance of the grinding wheel. The operator must frequently replace the grinding wheel or interrupt the operation for cleaning, greatly reducing production continuity and work efficiency. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the problems existing in the prior art, the present invention provides a universal grinding machine for wood board grinding to solve the technical problems mentioned in the background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solution: A universal grinding machine for wood board grinding, comprising a lifting frame and an intermediate plate installed on the lifting frame; further comprising a jetting mechanism, the jetting mechanism includes a plurality of guide sleeves installed on the intermediate plate, each guide sleeve is slidably connected with a guide tube, a jetting block is respectively and communicatively installed on every two guide tubes, and a plurality of transverse tubes and inclined tubes are respectively installed at both ends of each jetting block, and the transverse tubes, the inclined tubes and the guide tubes on the same side of the jetting block are mutually communicative, and a fitting block and an inner jetting tube are respectively and symmetrically installed on the two jetting blocks, and the inner jetting tube is communicatively installed in the corresponding guide tube on one side; further comprising an adjusting mechanism, the adjusting mechanism includes two bilateral tubes symmetrically arranged, and an air inlet tube is installed on the two bilateral tubes, and the air inlet tube is communicatively connected to an external air inlet device.

[0008] Preferably, the jetting mechanism further includes a motor installed on the intermediate plate, a grinding disc is installed on the extending end of the motor, the two fitting blocks are respectively on both sides of the grinding disc, and the plurality of inner jetting tubes are respectively on both sides of the grinding disc.

[0009] Preferably, a limiting ring is coaxially installed on each guide tube, a corrugated pipe is installed on each limiting ring, and a communicating pipe is communicatively installed between the two corrugated pipes.

[0010] Preferably, a spring is sleeved on each guide tube, one end of the spring abuts against the guide sleeve, and the other end of the spring abuts against the jetting block.

[0011] Preferably, an embedded groove is respectively opened at both ends of each jetting block, and a rolling ball is rotatably installed in each embedded groove.

[0012] Preferably, the lifting frame is slidably connected to a moving frame, the moving frame is slidably connected to a fixed frame, and a plurality of spacer plates are equidistantly installed on the fixed frame, a wood board body is installed on the spacer plate, and the plurality of rolling balls are respectively pressed on the wood board body.

[0013] Preferably, the adjusting mechanism further includes a bottom tube communicatively installed on the bilateral tube, the bottom tube is communicatively connected to the communicating pipe, two fixing rods are installed between the two bilateral tubes, intermediate sleeves are respectively installed on the two fixing rods, and intermediate rings are rotatably installed in the two intermediate sleeves.

[0014] Preferably, a receiving disc is installed in each of the two bilateral tubes, and a threaded sleeve is slidably connected in each of the two bilateral tubes, and a flow blocking disc is threadedly installed on one side of each threaded sleeve close to the receiving disc.

[0015] Preferably, a lead screw is coaxially arranged on the middle ring, and the lead screw is respectively threadedly connected to the two threaded sleeves in the same direction.

[0016] Preferably, a plurality of lateral strips are installed at equal intervals in each of the double-sided tubes, and a lateral groove is provided on the side wall of the threaded sleeve, and the lateral groove is slidably connected to the lateral strip.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a universal grinder for grinding wood boards, which has the following beneficial effects:

[0019] This innovative universal grinder for wood board grinding solves the industry problem of insufficient debris handling in traditional wood board grinding equipment. Through the double-sided guided jet structure, efficient airflow channels are formed on both sides of the cutting area generated by the high-speed rotation of the grinding disc. When the grinding disc contacts the surface of the wood board for processing, the generated wood chips will be thrown to both sides by the centrifugal force of the grinding disc. At this time, the inner nozzle generates high-speed airflow, providing additional kinetic energy for the wood chips, ensuring that they can overcome air resistance and electrostatic adsorption force and smoothly separate from the processing surface.

[0020] The airflow provided by the inner nozzle provides initial acceleration force for the wood chips, solving the problem of insufficient kinetic energy of wood chips and difficulty in detaching from the workpiece surface in traditional equipment; secondly, the air wall formed by the transverse tube and the inclined tube further guides the wood chips that have detached from the surface to move along a preset path, preventing them from randomly drifting or falling back onto the workpiece surface. The synergistic effect of this double-layer airflow creates a "directional wood chip channel", which allows the grinding debris to be guided to the collection area between the partition plates, thereby being efficiently removed by the external dust collection system.

[0021] The design of the fitting blocks further optimizes the airflow control in the grinding area. They are set coaxially with the grinding disc to form a closed grinding space, ensuring that wood chips can only be discharged from the preset channels on both sides, effectively avoiding the random diffusion of debris, improving collection efficiency, and also protecting the operator's working environment. The combination of this adaptive fitting and airflow guidance enables the equipment to achieve a nearly dust-free working environment while ensuring the grinding quality, thereby improving processing accuracy and operating comfort.

[0022] Through the middle ring and the screw drive system, the operator can simply adjust the rotation angle of the middle ring and control the intensity distribution of the airflow on both sides at the same time. This design adopts the two-way adjustment principle of the same-direction thread to ensure that when the airflow on one side is enhanced, the airflow on the other side will be weakened accordingly. The total airflow remains constant, optimizing energy utilization efficiency.

[0023] It can adapt to the wood grinding requirements of different densities and hardnesses. For example, for hardwoods with higher densities such as oak and maple, the air flow intensity can be increased to ensure the effective discharge of heavier wood chip particles; while for softwoods such as pine or fir, the air flow intensity can be reduced to avoid damaging the wood surface by too strong air flow. Secondly, this adjustment mechanism can cope with the different debris characteristics generated by sandpapers of different grit sizes. Larger debris particles generated by coarse sandpapers require stronger air flow support, while fine dust generated by fine sandpapers requires a more evenly distributed gentle air flow. Brief Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of a universal grinding machine for wood board grinding in the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the lifting frame and the middle plate in the present invention;

[0026] Figure 3 It is an exploded schematic diagram of the motor and the lifting frame in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the air jet block and the guide pipe in the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the double-sided pipe and the corrugated pipe in the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the double-sided pipe and the middle ring in the present invention;

[0030] Figure 7 It is a sectional view schematic diagram of the double-sided pipe in the present invention;

[0031] Figure 8 In the present invention Figure 7 sectional view schematic diagram;

[0032] Figure 9 It is a schematic diagram of the structure of the flow blocking disc in the present invention.

[0033] In the figure: 11, lifting frame; 12, middle plate; 21, guide sleeve; 22, guide pipe; 23, air jet block; 24, transverse pipe; 25, inclined pipe; 26, fitting block; 27, inner spray pipe; 28, motor; 29, grinding disc; 31, double-sided pipe; 32, intake pipe; 33, bottom pipe; 34, fixed rod; 35, middle sleeve; 36, middle ring; 37, receiving disc; 38, threaded sleeve; 39, flow blocking disc; 210, limit ring; 211, corrugated pipe; 212, connecting pipe; 213, spring; 214, embedded groove; 215, rolling ball; 216, moving frame; 217, fixed frame; 218, spacer; 219, wood board body; 310, lead screw; 311, lateral strip; 312, lateral groove. Detailed implementation manners

[0034] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] It should be pointed out that unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0036] In the present invention, unless otherwise stated, the orientations such as "upper" and "lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" are usually the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation terms are not used to limit the present invention.

[0037] Please refer to Figures 1 to 9 , a universal grinding machine for wood board grinding, including a lifting frame 11 and an intermediate plate 12 installed on the lifting frame 11; further including a jetting mechanism, the jetting mechanism includes a plurality of guide sleeves 21 installed on the intermediate plate 12, each guide sleeve 21 is slidably connected with a guide tube 22 respectively, a jetting block 23 is connected and installed on every two guide tubes 22 respectively, and a plurality of transverse tubes 24 and inclined tubes 25 are installed at both ends of each jetting block 23 respectively, and the transverse tubes 24, the inclined tubes 25 and the guide tubes 22 on the same side of the jetting block 23 are communicated with each other, and a fitting block 26 and an inner jetting tube 27 are symmetrically installed on the two jetting blocks 23 respectively, the inner jetting tube 27 is communicated in the corresponding guide tube 22 on one side, the jetting mechanism further includes a motor 28 installed on the intermediate plate 12, a grinding disc 29 is installed on the extending end of the motor 28, the two fitting blocks 26 are respectively on both sides of the grinding disc 29, and a plurality of inner jetting tubes 27 are respectively on both sides of the grinding disc 29, a limiting ring 210 is coaxially installed on each guide tube 22 respectively, and a corrugated tube 211 is installed on each limiting ring 210 respectively, and a connecting tube 212 is connected and installed between the two corrugated tubes 211, a spring 213 is sleeved and installed on each guide tube 22 respectively, and one end of the spring 213 abuts against the guide sleeve 21, and the other end of the spring 213 abuts against the jetting block 23, inner embedding grooves 214 are respectively opened at both ends of each jetting block 23, a rolling ball 215 is rotatably installed in each inner embedding groove 214 respectively, the lifting frame 11 is slidably connected to a moving frame 216, the moving frame 216 is slidably connected to a fixed frame 217, and a plurality of spacer plates 218 are equidistantly installed on the fixed frame 217, a wood board body 219 is installed on the spacer plates 218, and the plurality of rolling balls 215 are respectively pressed on the wood board body 219.

[0038] When grinding the wooden board body 219, the wooden board body 219 is placed on a plurality of spacer plates 218. The lower ends of the plurality of spacer plates 218 are voids. When sawdust falls between the plurality of spacer plates 218, it will be sucked out by an external device, thus avoiding affecting the grinding. The moving frame 216 can move horizontally along the fixed frame 217, the lifting frame 11 can move horizontally along the moving frame 216, and the lifting frame 11 can move up and down. Therefore, the motor 28 and the grinding disc 29 can be driven to move in multiple directions, and then the wooden board body 219 is ground. Since the fitting blocks 26 are respectively installed between the two side air jet blocks 23, and the two fitting blocks 26 and the grinding disc 29 are coaxially arranged. And as the lifting frame 11 moves up and down, first the rolling ball 215 will press on the wooden board body 219, then the spring 213 is compressed, and the guide tube 22 moves upward until the grinding disc 29 fits on the wooden board body 219. During the process of grinding the wooden board body 219 by the grinding disc 29, since only the sawdust will be thrown out at the position between the two air jet blocks 23 through the fitting blocks 26, and the external air intake device can generate an outward jet of gas through the inner jet pipe 27. Then this gas will drive the sawdust to be ejected outward, and the two guide tubes 22 connected by the corrugated pipe 211 will be at the same jet speed. Then the gas will be ejected through the lateral pipe 24 and the inclined pipe 25 on one side, and an air wall will be generated between the two lateral pipes 24 and the inclined pipes 25 on both sides, ensuring that the sawdust will only move outward between the two air walls until it leaves the wooden board body 219 and the sawdust falls between the plurality of spacer plates 218, and the sawdust is sucked out by an external device. Since the grinding disc 29 will throw out the sawdust on both sides, and then the inner jet pipe 27 accelerates the sawdust, avoiding the kinetic energy of the sawdust being insufficient to leave the wooden board body 219. Then the position of the sawdust is restricted by the air wall generated by the lateral pipes 24 and the inclined pipes 25 on both sides, so that the sawdust will be blown out and the grinding is not affected.

[0039] The adjusting mechanism includes two double-sided tubes 31 symmetrically arranged, and an air inlet pipe 32 is installed on the two double-sided tubes 31. The air inlet pipe 32 is connected to an external air intake device. The adjusting mechanism further includes a bottom pipe 33 connected and installed on the double-sided tube 31. The bottom pipe 33 is connected to the connecting pipe 212. Two fixing rods 34 are installed between the two double-sided tubes 31. Intermediate sleeves 35 are respectively installed on the two fixing rods 34, and intermediate rings 36 are respectively rotatably installed in the two intermediate sleeves 35. Receiving discs 37 are respectively installed in the two double-sided tubes 31, and threaded sleeves 38 are respectively slidably connected in each double-sided tube 31. A flow blocking disc 39 is threadedly installed on one side of each threaded sleeve 38 close to the receiving disc 37. A lead screw 310 is coaxially arranged on the intermediate ring 36. The lead screws 310 are respectively threadedly connected to the two threaded sleeves 38 in the same direction. A plurality of lateral strips 311 are respectively installed at equal intervals in each double-sided tube 31. A lateral groove 312 is formed on the side wall of the threaded sleeve 38, and the lateral groove 312 is slidably connected to the lateral strip 311.

[0040] Since the blowing force needs to be controlled when the wood chips are blown off, if the blowing force is too large or too small, if the force is too large, the wood chips will be blown out of the position of the fixing frame 217, and if the force is very small, they will not fall outside the wooden board body 219. Therefore, the forces on both sides need to be adjusted. Since the intake force is controllable, the jet forces on both sides need to be adjusted. The total force is fixed, so when one side increases, the other side will decrease. Therefore, the blowing forces on both sides need to be adjusted synchronously. The middle ring 36 is rotationally connected to the middle sleeve 35 in a limited manner. Therefore, rotating the middle ring 36 will drive the rotation of the lead screw 310. Since the lead screw 310 is respectively threadedly connected to the two threaded sleeves 38 in the same direction, and the threaded sleeves 38 are limited by the lateral bars 311 and the lateral grooves 312, the two threaded sleeves 38 will move towards the same side respectively. Since the flow blocking discs 39 are installed on the threaded sleeves 38, when one flow blocking disc 39 approaches the receiving disc 37, the other flow blocking disc 39 will move away from the receiving disc 37. When approaching, the ejection speed decreases, and when moving away, the ejection speed increases. Therefore, the ejection speeds on both sides can be adjusted, thus ensuring the uniformity of the jet on both sides and improving the use effect.

[0041] In all the solutions mentioned above, for the connection between two components, welding, the cooperation of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal grinding machine for wood board grinding, comprising a lifting frame (11) and an intermediate plate (12) mounted on the lifting frame (11); characterized in that: It further includes a jetting mechanism. The jetting mechanism includes a plurality of guide sleeves (21) mounted on the intermediate plate (12). A guide tube (22) is slidably connected to each guide sleeve (21). A jetting block (23) is communicatively and mounted between every two guide tubes (22). A plurality of transverse tubes (24) and inclined tubes (25) are respectively mounted at both ends of each jetting block (23). The transverse tubes (24), the inclined tubes (25) and the guide tubes (22) on the same side of the jetting block (23) are in communication with each other. A fitting block (26) and an inner jetting tube (27) are symmetrically mounted on the two jetting blocks (23) respectively. The inner jetting tube (27) is communicated with the corresponding guide tube (22) on one side. It further includes an adjusting mechanism. The adjusting mechanism includes two double-sided tubes (31) arranged symmetrically. An air inlet pipe (32) is mounted on the two double-sided tubes (31). The air inlet pipe (32) is communicated with an external air intake device.

2. The universal grinding machine for wood board grinding according to claim 1, characterized in that: The jetting mechanism further includes a motor (28) mounted on the intermediate plate (12). A grinding disc (29) is mounted on the protruding end of the motor (28). The two fitting blocks (26) are respectively on both sides of the grinding disc (29). A plurality of inner jetting tubes (27) are respectively on both sides of the grinding disc (29).

3. The universal grinding machine for wood board grinding according to claim 2, characterized in that: A limit ring (210) is coaxially mounted on each guide tube (22). A corrugated pipe (211) is mounted on each limit ring (210). A connecting pipe (212) is communicatively mounted between the two corrugated pipes (211).

4. The universal grinding machine for wood board grinding according to claim 3, characterized in that: A spring (213) is sleeved on each guide tube (22). One end of the spring (213) abuts against the guide sleeve (21), and the other end of the spring (213) abuts against the jetting block (23).

5. The universal grinding machine for wood board grinding according to claim 1, characterized in that: Inner embedding grooves (214) are respectively formed at both ends of each jetting block (23). A rolling ball (215) is rotatably mounted in each inner embedding groove (214).

6. The universal grinding machine for wood board grinding according to claim 5, characterized in that: The lifting frame (11) is slidably connected to a moving frame (216). The moving frame (216) is slidably connected to a fixed frame (217). A plurality of spacer plates (218) are equidistantly mounted on the fixed frame (217). A wooden board body (219) is mounted on the spacer plates (218). The plurality of rolling balls (215) respectively press on the wooden board body (219).

7. The universal grinding machine for wood board grinding according to claim 1, characterized in that: The adjusting mechanism further includes a bottom tube (33) communicatively mounted on the double-sided tube (31). The bottom tube (33) is communicated with the connecting pipe (212). Two fixing rods (34) are mounted between the two double-sided tubes (31). Intermediate sleeves (35) are respectively mounted on the two fixing rods (34). Intermediate rings (36) are rotatably mounted in the two intermediate sleeves (35).

8. The universal grinding machine for wood board grinding according to claim 7, wherein: A receiving tray (37) is respectively installed in each of the two double-sided tubes (31), and a threaded sleeve (38) is respectively slidably connected in each of the two double-sided tubes (31). A flow blocking disc (39) is threadedly installed on one side of each threaded sleeve (38) close to the receiving tray (37).

9. The universal grinding machine for wood board grinding according to claim 8, characterized in that: A lead screw (310) is coaxially arranged on the middle ring (36), and the lead screw (310) is respectively threadedly connected to the two threaded sleeves (38) in the same direction.

10. A universal grinding machine for wood board grinding according to claim 9, characterized in that: A plurality of lateral bars (311) are respectively installed at equal intervals in each of the two double-sided tubes (31). A lateral groove (312) is formed in the side wall of the threaded sleeve (38), and the lateral groove (312) is slidably connected to the lateral bar (311).

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