Height-adjustable cutting mechanism

Abstract

The height-adjustable cutting mechanism comprises a vertical frame and a sliding seat capable of ascending and descending relative to the vertical frame, and a lifting driving mechanism is connected between the vertical frame and the sliding seat; a cutting assembly is installed on the sliding base and comprises a motor, a cutting knife and a transmission shaft connected with the motor and the cutting knife. The vertical frame is composed of a plurality of vertically-arranged square pipes, and gaps are formed between the adjacent square pipes. The sliding seat is a sleeve body arranged around all the square tubes; the transmission shaft penetrates through the gap and passes through the interior of the vertical frame, and two ends are respectively connected with the motor and the cutter; and the lifting driving mechanism is arranged in the vertical frame. According to the cutting device, the vertical frame composed of the square pipes is arranged, the structure of the sliding base is redesigned, and the cutting assembly is rearranged, so that the overall supporting stability of the vertical frame and the supporting stability of the sliding base to the transmission shaft are both greatly improved, the acting counter force generated by cutting operation can be effectively resisted, and the heavy-load cutting requirement is met; and meanwhile, the overall manufacturing cost is very low, and the structural light weight is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of cutting equipment, in particular to a cutting mechanism with adjustable height. Background Art

[0002] In modern industrial production and daily life, cutting is a common and important process, widely used in many fields such as metal processing, wood processing, and plastic product manufacturing. The lifting function of the cutting mechanism is of great significance for cutting operations. It can not only flexibly adjust the cutting height according to the material thickness and cutting requirements to ensure cutting accuracy, but also effectively respond to the characteristics of different materials during the cutting process to improve cutting quality and efficiency. In addition, the lifting function enables the equipment to adapt to a more diverse operating environment, enhance the safety and convenience of operation, and reduce the difficulty of manual adjustment, thereby comprehensively improving the comprehensive performance of the cutting operation.

[0003] In the prior art, patent CN 218555724 U discloses a cutting machine with an automatically lifting cutting knife, wherein the cutting mechanism comprises a lifting device, a driver, a telescopic rod, a cutting bracket, a cutting motor and a cutting knife. In this cutting mechanism, the cutting motor and the cutting knife are installed on the top of a telescopic rod and are driven to lift by the lifting device. The overall structural stability is poor, and only relatively light cutting operations can be performed, and it is difficult to undertake heavy cutting operations. In order to increase the support stability, the traditional method requires increasing the thickness of the seat body, and in order to ensure the smoothness of lifting, it is necessary to set structures such as slide rails and sliders, which will increase the manufacturing cost and greatly increase the overall weight of the equipment. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a low-cost, stable, reliable, lightweight and highly adjustable cutting mechanism.

[0005] Technical solution: To achieve the above-mentioned purpose, the height-adjustable cutting mechanism of the present invention comprises a stand and a slide seat capable of lifting and lowering relative to the stand, wherein a lifting drive mechanism is connected between the stand and the slide seat; a cutting assembly is installed on the slide seat, and the cutting assembly comprises a motor, a cutting knife, and a transmission shaft connecting the motor and the cutting knife;

[0006] The stand is composed of a plurality of vertically placed square tubes. In this embodiment, the number of the square tubes is 4, and there is a gap between adjacent square tubes. The slide seat is a sleeve arranged around all the square tubes.

[0007] The transmission shaft passes through the gap and the interior of the stand, and its two ends are respectively connected to the motor and the cutting knife;

[0008] The lifting drive mechanism is placed in the stand.

[0009] Furthermore, the slide seat is a square cylinder composed of four plates, and angle steels are fixed on the inner sides of the corners formed between adjacent plates; each angle steel has a corresponding square tube in contact with it; and the two inner walls of the angle steel are in contact with the two outer walls of the corresponding square tube.

[0010] A mounting seat is fixed on one of the plates, and the motor is mounted on the mounting seat.

[0011] The structural design of the above-mentioned slide seat is simple in structure, and a reliable sliding connection relationship can be established between the frame and the slide seat. In actual operation, only the inner wall of the angle steel and the wall surface of the square tube in contact with the inner wall of the angle steel need to be precisely processed and polished. There is no need to set up a slide rail and a slider, and the cost is low.

[0012] Furthermore, a transmission relationship is established between the motor and the transmission shaft via a belt transmission mechanism. In this way, the central axis of the motor is arranged in parallel with the transmission shaft, which does not increase the length of the mechanism in the axial direction of the transmission shaft, and can effectively improve the compactness of the structure.

[0013] Furthermore, the slide seat has a connecting portion extending into the interior of the stand; the lifting drive mechanism is connected to the top of the stand and the connecting portion.

[0014] Furthermore, the lifting drive mechanism is an electric cylinder or an oil cylinder, which has a cylinder body and a telescopic shaft; the top of the stand has a first connecting shaft, and a second connecting shaft is installed on the connecting part; the cylinder body and the telescopic shaft are respectively rotationally connected to the first connecting shaft and the second connecting shaft.

[0015] Furthermore, a pair of opposite plates of the slide seat are both equipped with bearing seats for supporting the transmission shaft.

[0016] Furthermore, the cutting knife is a circular cutting blade with a cutting edge. In actual use, different forms of cutting knives can be replaced as needed. For example, the cutting knife can be a circular saw blade with serrations on the edge.

[0017] Furthermore, a flange is fixed on the transmission shaft, and the cutter is fixed on the flange by a plurality of screws arranged in a circumferential array. With this mounting structure, the cutter is firmly fixed and the cutter is convenient to replace.

[0018] Beneficial effects: The height-adjustable cutting mechanism of the present invention has the following beneficial effects:

[0019] (1) By setting up a vertical frame composed of multiple square tubes, redesigning the structure of the slide seat and re-arranging the cutting components, the overall support stability of the vertical frame is improved, and the supported length of the transmission shaft is greatly increased. The support stability of the slide seat to the transmission shaft is greatly improved, which can effectively resist the reaction force generated by the cutting operation and meet the needs of heavy-load cutting. At the same time, the overall manufacturing cost is very low, and the structure is lightweight, which effectively achieves cost reduction and weight reduction.

[0020] (2) The height of the cutting assembly can be adjusted as needed through the lifting drive mechanism, or the cutting assembly can be fed downward for cutting and lifted up after cutting as needed to meet various cutting needs.

[0021] (3) The lifting drive mechanism adopts a hidden design, which makes full use of the space between all the square tubes, and the lifting drive mechanism is installed in the center relative to the slide. The force applied by the lifting drive mechanism to the slide is relatively balanced, and the slide will not get stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view of the structure of the height-adjustable cutting mechanism;

[0023] Figure 2 It is a three-dimensional structural diagram of a cutting mechanism with adjustable height;

[0024] Figure 3 It is a cross-sectional structural diagram of a cutting mechanism with adjustable height;

[0025] Figure 4 It is a three-dimensional structural diagram of the slide.

[0026] In the figure: 1-stand; 11-square tube; 2-slide seat; 21-plate body; 22-angle steel; 23-mounting seat; 24-connecting part; 3-cutting assembly; 31-motor; 32-cutting knife; 33-drive shaft; 34-belt drive mechanism; 35-flange; 36-screw; 37-bearing seat; 4-lifting drive mechanism; 5-first connecting shaft; 6-second connecting shaft. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] like Figures 1 to 3The height-adjustable cutting mechanism shown in the figure comprises a stand 1 and a slide 2 which can be raised and lowered relative to the stand 1, a lifting drive mechanism 4 being connected between the stand 1 and the slide 2; a cutting assembly 3 is mounted on the slide 2, the cutting assembly 3 comprising a motor 31, a cutting knife 32 and a transmission shaft 33 connecting the motor 31 and the cutting knife 32; the stand 1 is composed of a plurality of vertically arranged square tubes 11, in this embodiment, the number of the square tubes 11 is 4, and there is a gap between adjacent square tubes 11; the slide 2 is a sleeve arranged around all the square tubes 11; the transmission shaft 33 passes through the gap and passes through the interior of the stand 1, and its two ends are respectively connected to the motor 31 and the cutting knife 32; the lifting drive mechanism 4 is placed in the stand 1.

[0029] In the above structure, by setting up a stand 1 composed of multiple square tubes 11, redesigning the structure of the slide 2 and rearranging the cutting assembly 3, the overall support stability of the stand 1 is improved, and the supported length of the transmission shaft 33 is greatly increased. The support stability of the slide 2 to the transmission shaft 33 is greatly improved, which can effectively resist the reaction force generated by the cutting operation and meet the needs of heavy-load cutting. At the same time, the overall manufacturing cost is very low, and the structure is lightweight, which effectively achieves cost reduction and weight reduction.

[0030] The height of the cutting assembly 3 can be adjusted as needed through the lifting drive mechanism 4, or the cutting assembly 3 can be fed downward for cutting and lifted up after cutting as needed to meet various cutting needs.

[0031] Specifically, Figure 4 As shown, the slide 2 is a square cylinder composed of four plates 21, and a pair of opposite plates 21 of the slide 2 are both mounted with bearing seats 37 for supporting the transmission shaft 33. An angle steel 22 is fixed to the inner side of the corner formed between adjacent plates 21; each angle steel 22 has a square tube 11 in contact with it; the two inner walls of the angle steel 22 are in contact with the two outer walls of the corresponding square tube 11. A mounting seat 23 is fixed to one of the plates 21, and the motor 31 is mounted on the mounting seat 23.

[0032] The structural design of the slide 2 is simple, and a reliable sliding connection relationship can be established between the frame 1 and the slide 2. In actual operation, only the inner wall of the angle steel 22 and the wall surface of the square tube 11 in contact with the inner wall of the angle steel 22 need to be precisely processed and polished. There is no need to set a slide rail or slider, and the cost is low.

[0033] The motor 31 and the transmission shaft 33 establish a transmission relationship through the belt transmission mechanism 34. In this way, the central axis of the motor 31 is arranged in parallel with the transmission shaft 33, which does not increase the length of the mechanism in the axial direction of the transmission shaft 33, and can effectively improve the compactness of the structure.

[0034] The slide 2 has a connection portion 24 extending into the interior of the stand 1; the lifting drive mechanism 4 is connected to the top of the stand 1 and the connection portion 24. In this embodiment, the lifting drive mechanism 4 is an electric cylinder or an oil cylinder, which has a cylinder body and a telescopic shaft; the top of the stand 1 has a first connection shaft 5, and the connection portion 24 is mounted with a second connection shaft 6; the cylinder body and the telescopic shaft are respectively connected to the first connection shaft 5 and the second connection shaft 6 for rotation.

[0035] The lifting drive mechanism 4 adopts a hidden design, making full use of the space between all the square tubes 11, and the lifting drive mechanism 4 is installed centrally relative to the slide 2. The force applied by the lifting drive mechanism 4 to the slide 2 is relatively balanced, and the slide 2 will not get stuck.

[0036] The cutting knife 32 is a circular cutting blade with a cutting edge. In actual use, the cutting knife 32 of different forms can be replaced as needed. For example, the cutting knife 32 can be a circular saw blade with saw teeth on the edge.

[0037] A flange 35 is fixed on the transmission shaft 33, and the cutter 32 is fixed on the flange 35 by a plurality of screws 36 arranged in a circumferential array. With this mounting structure, the cutter 32 is firmly fixed and the cutter 32 is convenient to replace.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cutting mechanism with adjustable height, comprising a stand (1) and a slide (2) capable of rising and falling relative to the stand (1), wherein a lifting drive mechanism (4) is connected between the stand (1) and the slide (2); a cutting assembly (3) is mounted on the slide (2), and the cutting assembly (3) comprises a motor (31), a cutting knife (32) and a transmission shaft (33) connecting the motor (31) and the cutting knife (32); characterized in that: The stand (1) is composed of a plurality of vertically arranged square tubes (11), with gaps between adjacent square tubes (11); the slide seat (2) is a sleeve arranged around all the square tubes (11); The transmission shaft (33) passes through the gap and passes through the interior of the stand (1), and its two ends are respectively connected to the motor (31) and the cutting knife (32); The lifting drive mechanism (4) is placed inside the stand (1).

2. The height-adjustable cutting mechanism according to claim 1, characterized in that: The slide seat (2) is a square cylinder composed of four plates (21), and angle steels (22) are fixed inside the corners formed between adjacent plates (21); each angle steel (22) has a corresponding square tube (11) in contact with it; A mounting seat (23) is fixed on one of the plate bodies (21), and the motor (31) is mounted on the mounting seat (23).

3. The height-adjustable cutting mechanism according to claim 2, characterized in that: A transmission relationship is established between the motor (31) and the transmission shaft (33) via a belt transmission mechanism (34).

4. The height-adjustable cutting mechanism according to claim 2, characterized in that: The sliding seat (2) has a connecting portion (24) extending into the interior of the stand (1); the lifting drive mechanism (4) is connected to the top of the stand (1) and the connecting portion (24).

5. The height-adjustable cutting mechanism according to claim 4, characterized in that: The lifting drive mechanism (4) is an electric cylinder or an oil cylinder, which has a cylinder body and a telescopic shaft; the top of the stand (1) has a first connecting shaft (5), and the connecting part (24) is equipped with a second connecting shaft (6); the cylinder body and the telescopic shaft are respectively connected to the first connecting shaft (5) and the second connecting shaft (6) in a corresponding rotational manner.

6. The height-adjustable cutting mechanism according to claim 2, characterized in that: A pair of opposite plates (21) of the slide seat (2) are both provided with bearing seats (37) for supporting the transmission shaft (33).

7. The height-adjustable cutting mechanism according to claim 1, characterized in that: The cutting knife (32) is a circular cutting blade with a cutting edge on the edge.

8. The height-adjustable cutting mechanism according to claim 7, characterized in that: A flange (35) is fixed on the transmission shaft (33), and the cutting knife (32) is fixed on the flange (35) by a plurality of screws (36) arranged in a circumferential array.

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