Cut-off knife forward inclination prevention knife path device and cutting bed

Abstract

The invention discloses a cutter path device for preventing a cutter from inclining forwards and a cutting bed, relates to the technical field of cutting beds, and aims to solve the problem that the cutter is prone to inclining forwards during cutting. The device comprises a cutter path seat, two rolling cone pulleys are arranged at the front end of the cutter path seat side by side at intervals, and the cutter is arranged between the two cone pulleys; the included angle formed between the opposite outer conical surfaces of the two cone pulleys is smaller than the included angle of the cutting edge of the cutting knife, so that the outer conical surfaces of the cone pulleys are tightly attached to the two side blade surfaces of the cutting knife, the two side blade surfaces of the cutting knife are clamped through the outer conical surfaces of the cone pulleys, and it is guaranteed that the cutting knife does not incline forwards in the cutting process.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting machines, and more specifically, to a cutting tool anti-tilting tool path device and a cutting machine. Background Art

[0002] As an important industrial equipment, a cutting machine is widely used in industries such as clothing, leather, and furniture to cut various materials into required shapes and sizes. However, during actual use, the cutting blade of the cutting machine often tilts forward during operation, especially when cutting the corners of high-thickness fabrics, and this problem is particularly prominent.

[0003] When the cutting tool cuts high-thickness fabrics, since the lower end of the cutting tool extends into the fabric, the resistance is relatively large. Especially when cutting corners and arcs, the lower end of the cutting tool is prone to deviation due to the resistance. Specifically, when the fixed end of the cutting tool starts to rotate to cut a corner, since the cutting tool is still cutting and the tip of the tool is still inside the fabric, the cutting tool will twist, thereby causing the cutting tool to tilt forward. This phenomenon of the cutting blade tilting forward will result in poor accuracy of the upper and lower pieces of the cut piece, affecting the cutting quality, and further affecting subsequent production and processing.

[0004] Therefore, how to solve the problem that the cutting tool is prone to tilting forward during cutting is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0005] In view of this, an object of the present invention is to provide a cutting tool anti-tilting tool path device, which clamps both side cutting edges of the cutting tool through the outer conical surface of a tapered wheel to ensure that the cutting tool does not tilt forward during the cutting process.

[0006] Another object of the present invention is to provide a cutting machine including the above-mentioned cutting tool anti-tilting tool path device, which can ensure that the cutting tool does not deviate during the cutting process, thereby ensuring the cutting efficiency of the cutting machine.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A cutting tool anti-tilting tool path device includes: a tool path base, at the front end of the tool path base, two rolling tapered wheels are arranged in parallel and at intervals, a cutting tool is arranged between the two tapered wheels, and the included angle formed between the opposite outer conical surfaces of the two tapered wheels is smaller than the blade included angle of the cutting tool, so that the outer conical surfaces of the tapered wheels are in close contact with both side cutting edges of the cutting tool.

[0009] Preferably, the two tapered wheels are arranged to move towards each other or away from each other, and when the two tapered wheels move towards each other and reach the position, they clamp the cutting tool.

[0010] Preferably, one of the cone pulleys is connected to the tool path base through an adjustment assembly. The adjustment assembly includes an adjustment bolt and a sliding shaft. The adjustment bolt includes a bolt head and a screw rod portion. The cone pulley is arranged on one end of the screw rod portion close to the bolt head through a bearing. One end of the screw rod portion far from the bolt head is threadedly connected to the sliding shaft. The tool path base is provided with a long hole for the sliding shaft and the screw rod portion to slide through.

[0011] Preferably, a stepped portion is provided at the front end of the tool path base. The cross-section of the tool path base along the moving direction of the cone pulley is L-shaped. A movable mounting seat is provided on the stepped portion. The mounting seat moves along the stepped surface of the stepped portion close to or away from the stepped portion. The other cone pulley is rotatably arranged on the mounting seat.

[0012] Preferably, the rear end of the tool path base is connected to the fixed seat through double locking screws. Both the tool path base and the fixed seat are provided with arc-shaped opening grooves to surround the bottom end of the limiting device of the cutting tool.

[0013] Preferably, the cone pulley is rotatably connected to the mounting seat through a cylindrical pin and a bearing.

[0014] Preferably, the mounting seat is connected to the stepped portion through a disassembly screw rod. A nut is fixed on the disassembly screw rod. The nut is movably arranged in the limiting hole of the mounting seat along the moving direction of the mounting seat.

[0015] Preferably, a guide pin is provided on the mounting seat. One end of the guide pin is connected to the stepped portion.

[0016] A cutting machine includes the anti-tipping tool path device for the cutting tool described in any one of the above. The cutting machine further includes a limiting device for restricting the cutting tool from tilting backward, leftward, and rightward. The anti-tipping tool path device for the cutting tool is detachably arranged at the bottom end of the limiting device.

[0017] Preferably, it further includes a driving mechanism for driving the cutting tool to move. One end of the cutting tool far from the tool tip is connected to the driving mechanism.

[0018] The anti-tipping tool path device for the cutting tool provided by the present invention includes a tool path base. Two rolling cone pulleys are arranged in parallel and at intervals at the front end of the tool path base. A cutting tool is arranged between the two cone pulleys. When the cutting tool moves up and down, the position of the cutting tool is guided by the cone pulleys. Rolling friction is adopted between the cone pulleys and the cutting tool, which can more effectively disperse the pressure, enable the cone pulleys and the cutting tool to bear a greater load during work, and reduce damage caused by overload. The included angle formed between the opposite outer conical surfaces of the two cone pulleys is smaller than the blade included angle of the cutting tool, so that the outer conical surface of the cone pulley is in close contact with the two side blade surfaces of the cutting tool. When the cutting tool tilts forward, the cone pulley will block the blade of the cutting tool to prevent the cutting tool from tilting forward. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0020] Figure 1 Structural schematic diagram of the cutter anti-tipping tool path device provided by the present invention;

[0021] Figure 2 For Figure 1 Structural schematic diagram from another perspective;

[0022] Figure 3 Bottom view of the cutter anti-tipping tool path device provided by the present invention;

[0023] Figure 4 Cross-sectional view of the cutter anti-tipping tool path device provided by the present invention.

[0024] Reference numerals:

[0025] 1 - Tool path seat; 2 - Tapered wheel; 3 - Adjusting bolt; 4 - Sliding shaft; 5 - Bearing; 6 - Mounting seat; 7 - Locking screw; 8 - Fixed seat; 9 - Cylindrical pin; 10 - Dismantling screw; 11 - Nut; 12 - Guide pin; 13 - Cutter; 14 - Limiting device. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] It should be noted that the following orientation terms such as "up, down, front, back, left, right" are defined based on the drawings in the specification.

[0029] The core of the present invention is to provide a cutting knife anti-tilting tool path device, which clamps the two side cutting edges of the cutting knife 13 through the outer conical surface of the tapered wheel 2 to ensure that the cutting knife 13 does not tilt forward during the cutting process. Another core of the present invention is to provide a cutting bed including the above-mentioned cutting knife anti-tilting tool path device, which can ensure that the cutting knife 13 does not skew during the cutting process, thereby ensuring the cutting efficiency of the cutting bed.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , a cutting knife anti-tilting tool path device includes a tool path seat 1. At the front end of the tool path seat 1, two rolling tapered wheels 2 are arranged in parallel and at intervals. A cutting knife 13 is arranged between the two tapered wheels 2, so that when the cutting knife 13 moves up and down, the position of the cutting knife 13 is guided by the tapered wheels 2. Rolling friction is adopted between the tapered wheels 2 and the cutting knife 13, which can more effectively disperse the pressure, enable the tapered wheels 2 and the cutting knife 13 to bear a greater load during work, and reduce damage caused by overload. The included angle formed between the opposite outer conical surfaces of the two tapered wheels 2 is smaller than the blade included angle of the cutting knife 13, so that the outer conical surface of the tapered wheel 2 is in close contact with the two side cutting edges of the cutting knife 13. When the cutting knife 13 tilts forward, the tapered wheel 2 will block the cutting edge of the cutting knife 13 to prevent the cutting knife 13 from tilting forward.

[0031] The blade included angle refers to the included angle between the two side cutting edges of the blade. When the cutting knife 13 moves up and down, its position is guided by the tapered wheels 2. In this embodiment, the angle of the cutting edge of the cutting knife 13 is 30°, and the angle of the included angle formed between the opposite outer conical surfaces of the two tapered wheels 2 is 28°. When the cutting knife 13 tilts forward, the tapered wheel 2 will block the cutting edge of the cutting knife 13 to prevent the cutting knife 13 from tilting forward. In practical applications, the range of the included angle formed between the opposite outer conical surfaces of the two tapered wheels 2 being smaller than the blade included angle of the cutting knife 13 is 1-5 degrees, so that the two tapered wheels 2 can clamp the cutting knife 13.

[0032] The cutting knife anti-tilting tool path device arranged in the above manner can prevent the cutting knife 13 from tilting forward and reinforce the movement track of the cutting knife 13.

[0033] In the above embodiment, the two tapered wheels 2 are arranged to move in opposite or opposite directions. When the two tapered wheels 2 move in the opposite direction and reach the position, they clamp the cutting knife 13.

[0034] When the two tapered wheels 2 move in the opposite direction, the cutting knife 13 can be installed between the two tapered wheels 2, or the cutting knife 13 between the two tapered wheels 2 can be disassembled. When the two tapered wheels 2 move in the opposite direction, the cutting knife 13 can be clamped to achieve effective fixation of the cutting knife 13.

[0035] Please refer to Figure 4, one of the cone pulleys 2 is connected to the tool path base 1 through an adjustment assembly. The adjustment assembly includes an adjustment bolt 3 and a sliding shaft 4. The adjustment bolt 3 includes a bolt head and a screw part. The cone pulley 2 is arranged at one end of the screw part close to the bolt head through a bearing 5. The end of the screw part far from the bolt head is threadedly connected to the sliding shaft 4. The tool path base 1 is provided with a long hole for the sliding shaft 4 and the screw part to slide.

[0036] When in use, loosen the adjustment bolt 3, move the bolt head of the adjustment bolt 3 left and right to drive the screw part and the sliding shaft 4 to slide along the long hole of the tool path base 1, so as to adjust the movement of the cone pulley 2 on the adjustment bolt 3, so that the cone pulley 2 moves closer to or away from the cutting knife 13. When the cone pulley 2 moves in place, tighten the adjustment bolt 3 to fix the position of the cone pulley 2.

[0037] Among them, a bearing 5 is installed inside the cone pulley 2 to enable rolling friction between the side of the cutting knife 13 and the cone pulley 2. The rolling friction between the cone pulley 2 and the side of the cutting knife 13 can more effectively disperse the pressure, thereby improving the bearing capacity; compared with sliding friction, the contact points change continuously, which makes the meshing between the cone pulley 2 and the cutting knife 13 smoother, reduces impact and vibration, and improves the stability of transmission; the noise is low.

[0038] Further, the front end of the tool path base 1 is provided with a stepped part. The cross-section of the tool path base 1 along the moving direction of the cone pulley 2 is L-shaped. The stepped part is provided with a movable mounting seat 6. The mounting seat 6 moves along the stepped surface close to or away from the stepped part. The other cone pulley 2 is rotatably arranged on the mounting seat 6.

[0039] It should be noted that by moving the mounting seat 6, the mounting seat 6 moves along the stepped surface close to or away from the stepped part, thereby driving the cone pulley 2 to move synchronously.

[0040] In the above embodiment, the rear end of the tool path base 1 is connected to the fixed seat 8 through double locking screws 7. The tool path base 1 and the fixed seat 8 are both provided with arc-shaped opening grooves to surround the bottom end of the limiting device 14 of the cutting knife 13.

[0041] It can be understood that the limiting device 14 is used to limit the displacement of the cutting knife 13 in the backward, leftward and rightward directions. The tool path base 1 and the fixed seat 8 are fixed on the limiting device 14 through double locking screws 7. By loosening the double locking screws 7, the disassembly of the tool path base 1 and the fixed seat 8 can be realized.

[0042] In this embodiment, the bottom end of the limiting device 14 is cylindrical. The tool path base 1 and the fixed seat 8 are fixed to the bottom end of the limiting device 14. However, there is a certain adjustable gap between the tool path base 1 and the fixed seat 8 to ensure that the tool path base 1 can rotate clockwise or counterclockwise. Figure 4For example, during use, loosen the locking screw 7 on the left side and tighten the locking screw 7 on the right side so that the entire tool rail base 1 can rotate clockwise; loosen the locking screw 7 on the right side and tighten the locking screw 7 on the left side so that the entire tool rail base 1 can rotate counterclockwise.

[0043] Based on the above embodiment, the tapered pulley 2 is rotatably connected to the mounting seat 6 through a cylindrical pin 9 and a bearing 5.

[0044] It should be noted that the tapered pulley 2 takes the cylindrical pin 9 as the rotation axis and is rotatably connected to the cylindrical pin 9 through a bearing 5, and the cylindrical pin 9 is fixed on the mounting seat 6.

[0045] In the above embodiment, the mounting seat 6 is connected to the stepped portion through a disassembly screw 10, and a nut 11 is fixed on the disassembly screw 10. The nut 11 is movably disposed in the limit hole of the mounting seat 6 along the moving direction of the mounting seat 6.

[0046] It can be understood that the disassembly screw 10 is threadedly connected to the stepped portion. By rotating the disassembly screw 10 forward or backward, the nut 11 on the disassembly screw 10 is driven to rotate synchronously. Since the nut 11 is fixed on the disassembly screw 10, it moves synchronously with the disassembly screw 10, and at the same time, the nut 11 moves in the direction of approaching or departing from the stepped portion. When the nut 11 abuts against one end of the limit hole, the mounting seat 6 is pushed to move synchronously in the direction of approaching or departing from the stepped portion, thereby driving the tapered pulley 2 on the mounting seat 6 to move synchronously, realizing the locking and unlocking of the cutting tool 13.

[0047] Among them, by moving the mounting seat 6 in the above manner, the cutting tool 13 can be conveniently disassembled without disassembling parts, realizing the function of the tool rail.

[0048] As a preferred implementation manner, a guide pin 12 is provided on the mounting seat 6, and one end of the guide pin 12 is connected to the stepped portion.

[0049] It should be noted that by providing the guide pin 12, the moving direction of the mounting seat 6 can be restricted, so that the mounting seat 6 moves along the extending direction of the guide pin 12, ensuring the accuracy of the movement of the mounting seat 6.

[0050] When the cutting knife 13 is in a free state, first lock the mounting seat 6 on the tool rail seat 1, and then, through the two locking screws 7 on the fixing seat 8, make the outer conical surface of the cone pulley 2 align with the two side cutting edges of the cutting knife 13. The adjustment method is to tighten the right locking screw 7 and loosen the left locking screw 7, and the entire tool rail seat 1 rotates clockwise, and counterclockwise conversely. When the outer conical surface of the cone pulley 2 fits the side wall of the cutting knife 13, the position of the tool rail seat 1 is determined. When the fixing of the tool rail seat 1 is completed, slide the sliding shaft 4 by adjusting the bolt 3 to make the cone pulley 2 on the tool rail seat 1 close to the side wall of the cutting knife 13. After it is in place, tighten the adjusting bolt 3 to fix the position of the cone pulley 2.

[0051] When disassembling the cutting knife 13: The mounting seat 6 is positioned by a guide pin 12 and a dismounting screw 10. There is a nut 11 on the dismounting screw 10, and the nut 11 and the dismounting screw 10 are adhered with thread glue. One hole of the mounting seat 6 is a precision hole into which the guide pin 12 is inserted, and the other hole is the hole for the dismounting screw 10, which is a rough through hole and the dismounting screw 10 can rotate inside. When the mounting seat 6 needs to be disassembled, use a wrench to turn the dismounting screw 10, and the dismounting screw 10 pushes the mounting seat 6 through the nut 11. When the gap pushed out is greater than the width of the cutting knife 13, the cutting knife 13 can be taken out.

[0052] A cutting machine includes the above-mentioned anti-tilting tool rail device for the cutting knife. The cutting machine further includes a limiting device 14 for restricting the cutting knife 13 from tilting backward, leftward, and rightward. The anti-tilting tool rail device for the cutting knife is detachably arranged at the bottom end of the limiting device 14.

[0053] It can be understood that the deviation of the cutting knife 13 in the backward, leftward, and rightward directions is restricted by the limiting device 14, and the deviation of the cutting knife 13 in the forward direction is restricted by setting the anti-tilting tool rail device for the cutting knife to ensure that the cutting knife 13 performs the cutting work along a predetermined trajectory.

[0054] In the above embodiment, it further includes a driving mechanism for driving the cutting knife 13 to move. One end of the cutting knife 13 far from the tip is connected to the driving mechanism.

[0055] It should be noted that the cutting knife 13 moves up and down driven by the driving mechanism, and the two side walls of the cutting knife 13 are in rolling contact with the cone pulley 2.

[0056] Except for the cutting machine disclosed in each of the above embodiments, the structures of other parts of the cutting machine please refer to the prior art and will not be elaborated herein.

[0057] In summary, the anti-tilting tool rail device for the cutting knife provided by the present invention has a compact structure, is convenient to disassemble, and does not require removing the screws. During on-site maintenance, small parts will not be lost; by using the fitting of the surface of the cone pulley 2 and the inclined surface of the cutting knife 13, the problem of the cutting knife 13 tilting forward is solved; by using rolling friction, the service life of the parts is improved; and the adjustability is relatively good, which can slightly compensate for the machining errors of the parts.

[0058] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0059] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts between the embodiments, reference can be made to each other.

[0060] The above has introduced in detail a cutting knife anti-tilting tool path device and a cutting machine provided by the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A cutting knife anti-tilt track device, characterized in that: include: A tool rail seat (1), wherein two rolling cone wheels (2) are arranged in parallel and at intervals at the front end of the tool rail seat (1), a cutting knife (13) is arranged between the two cone wheels (2), and the angle formed between the opposing outer cone surfaces of the two cone wheels (2) is smaller than the blade angle of the cutting knife (13), so that the outer cone surfaces of the cone wheels (2) are in close contact with the blade surfaces of the cutting knife (13) on both sides.

2. The cutting knife anti-forward tilting tool rail device according to claim 1, characterized in that: The two cone wheels (2) are arranged to move in directions facing each other or facing away from each other, and the cutter (13) is clamped when the two cone wheels (2) are moved into position in directions facing each other.

3. The cutting knife anti-forward tilting tool rail device according to claim 2, characterized in that: One of the cone wheels (2) is connected to the tool rail seat (1) via an adjustment assembly, the adjustment assembly comprising an adjustment bolt (3) and a sliding shaft (4), the adjustment bolt (3) comprising a bolt head and a screw rod portion, the cone wheel (2) being arranged at an end of the screw rod portion close to the bolt head via a bearing (5), the end of the screw rod portion away from the bolt head being threadedly connected to the sliding shaft (4), and the tool rail seat (1) being provided with a long hole for the sliding shaft (4) and the screw rod portion to slide.

4. The cutting knife anti-forward tilting tool rail device according to claim 3, characterized in that: A step portion is provided at the front end of the tool rail seat (1); the cross section of the tool rail seat (1) along the moving direction of the cone wheel (2) is L-shaped; a movable mounting seat (6) is provided on the step portion; the mounting seat (6) moves along a step surface approaching or away from the step portion; another cone wheel (2) is rotatably arranged on the mounting seat (6).

5. The cutting knife anti-forward tilting tool rail device according to claim 4, characterized in that: The rear end of the knife track seat (1) is connected to the fixing seat (8) via a double locking screw (7), and both the knife track seat (1) and the fixing seat (8) are provided with an arc-shaped opening groove to surround the bottom end of the limiting device (14) of the cutting knife (13).

6. The cutting knife anti-forward tilting device according to claim 4, characterized in that: The cone wheel (2) is rotatably connected to the mounting seat (6) via a cylindrical pin (9) and a bearing (5).

7. The cutting knife anti-forward tilting device according to claim 6, characterized in that: The mounting seat (6) is connected to the step portion via a disassembly screw (10), a nut (11) being fixed to the disassembly screw (10), the nut (11) being movably disposed in a limiting hole of the mounting seat (6) along a moving direction of the mounting seat (6).

8. The cutting knife anti-forward tilting tool rail device according to claim 7, characterized in that: The mounting seat (6) is provided with a guide pin (12), and one end of the guide pin (12) is connected to the step portion.

9. A cutting table, characterized in that: The cutting table comprises the cutting knife anti-tilting track device as claimed in any one of claims 1 to 8, the cutting table further comprising a limiting device for limiting the cutting knife (13) from tilting backwards, leftwards and rightwards, the cutting knife (13) anti-tilting track device being detachably arranged at the bottom end of the limiting device (14).

10. The cutting table according to claim 9, characterized in that: It also comprises a driving mechanism for driving the cutting knife (13) to move, and an end of the cutting knife (13) away from the knife tip is connected to the driving mechanism.

Images