Automatic cutting machine and machine head device thereof

Abstract

The machine head device of the automatic cutting machine comprises a cutterhead mechanism, the cutterhead mechanism comprises a connecting flange, a connecting column, an upper cutterhead and a lower cutterhead, the upper cutterhead is a cylindrical hollow shell with an opening in the lower portion, a first cutter opening is formed in the center of the upper cutterhead, and a first air inlet is formed in the side face of the upper cutterhead; the upper cutter head is connected with the connecting flange through a connecting column; a second cutter opening is formed in the center of the lower cutter head, a guide mechanism is arranged on the side face of the second cutter opening, a check ring is arranged on the outer side of the guide mechanism, an annular air chamber is defined by the outer wall of the check ring, the upper wall of the lower cutter head and the inner wall of the upper cutter head, the air chamber is communicated with the first air inlet, and an air outlet is formed in the bottom of the air chamber. High-pressure air is blown into the air chamber through the first air inlet and blown out of the air outlet in the bottom of the air chamber, so that an air isolation layer is formed between the fabric and the cutter head, direct contact between the cutter head and the fabric is avoided, and the cutting precision and the fabric quality are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, in particular to an automatic cutting machine and a head device thereof. Background Art

[0002] At present, in the fabric cutting industry, materials are often cut according to production needs. However, due to the increasingly high requirements for cutting process and cutting efficiency, traditional manual cutting cannot meet the actual production needs. Therefore, automatic cutting machines are widely used in the fabric cutting industry due to their high cutting accuracy and fast cutting efficiency.

[0003] In order to prevent the fabric from moving during the cutting process, the fabric is often pressed by a knife disc. However, in the existing cutting machine head device, the friction between the knife disc and the contacted fabric is relatively large during the cutting process, which can easily cause the fabric to move and affect the cutting accuracy; and for some special material fabrics, the contact between the knife disc and the fabric will also affect the quality of the fabric.

[0004] Based on the above technical problems, the present application proposes an automatic cutting machine and a head device thereof. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic cutting machine and a head device thereof to solve the technical problems mentioned in the background technology. The purpose of the utility model is achieved through the following technical solutions:

[0006] A head device of an automatic cutting machine comprises a base and a cutting mechanism, an up-and-down moving mechanism is fixed on the base, a cutting mechanism is fixed on the up-and-down moving mechanism, a knife disc mechanism is arranged on the lower side of the cutting mechanism, the knife disc mechanism is connected to the base through a rotating mechanism, the knife disc mechanism comprises a connecting flange, a connecting column, an upper knife disc and a lower knife disc, the upper knife disc is a cylindrical hollow shell with an opening at the lower part, a first tool opening is opened at the center of the upper knife disc, a first air inlet is opened at the side of the upper knife disc, the first air inlet is connected to a high-pressure air source through a hose, and the upper knife disc is connected to the connecting flange through a connecting column; the lower knife disc is a disc, a second tool opening is opened at the center of the lower knife disc, a guide mechanism is arranged on the side of the second tool opening, a retaining ring is arranged on the outer side of the guide mechanism, the outer wall of the retaining ring, the upper wall of the lower knife disc and the inner wall of the upper knife disc form an annular air chamber, the air chamber is connected to the first air inlet, and an air outlet is opened at the bottom of the air chamber.

[0007] Furthermore, the up-and-down moving mechanism includes a lifting plate and a lifting drive member, the lifting plate is slidably mounted on the side of the base, the lifting drive member is fixed on the base, and the lifting drive member drives the lifting plate to move up and down reciprocatingly.

[0008] Furthermore, the cutting mechanism is a vibrating knife assembly, and the cutting knife of the vibrating knife assembly passes through the first knife opening and the second knife opening in sequence.

[0009] Furthermore, a second air inlet is provided on the side of the upper cutter disc, the second air inlet is connected to the high-pressure air source through a hose, the second air inlet passes through the retaining ring, and the second air inlet is directly opposite to the cutting edge of the cutter.

[0010] Furthermore, the rotating mechanism includes a rotating drive member and a rotating disk. The rotating disk is rotatably installed at the lower end of the base. A third tool opening is opened in the center of the rotating disk, and a driven gear is arranged on the side of the rotating disk. A driving gear is fixed to the output end of the rotating drive member, and the driving gear is meshed with the driven gear.

[0011] Furthermore, a knife sharpening mechanism is installed at the bottom of the base.

[0012] The present application also provides an automatic cutting machine comprising any one of the above-mentioned head devices.

[0013] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0014] An annular air chamber is formed by the upper blade disc, the lower blade disc and the retaining ring, and high-pressure air is blown into the air chamber through the first air inlet, so that the high-pressure air is blown out from the air outlet at the bottom of the air chamber, thereby forming a gas isolation layer between the fabric and the blade disc, avoiding direct contact between the blade disc and the fabric, and ensuring cutting accuracy and fabric quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0016] Figure 1 This is a schematic diagram of the front structure of the head device of the embodiment of the present application;

[0017] Figure 2 for Figure 1 A partial enlarged view of

[0018] Figure 3 This is a schematic diagram of the rear structure of the head device of the embodiment of the present application;

[0019] Figure 4 This is an exploded schematic diagram of the cutter disc mechanism of the embodiment of the present application;

[0020] Figure 5 This is a cross-sectional view of the cutter disc mechanism according to an embodiment of the present application.

[0021] The following are marked: 1. base; 11. top plate; 12. bottom plate; 13. side plate; 14. connecting plate; 15. reinforcing plate; 2. up-and-down moving mechanism; 21. lifting plate; 22. lifting drive member; 23. guide rod; 3. cutting mechanism; 31. cutting drive member; 32. eccentric wheel; 33. crank; 34. sliding seat; 35. knife seat; 36. cutting knife; 4. rotating mechanism; 41. rotating drive member; 42. rotating disk; 4 21. The third tool opening; 43. The driving gear; 44. The driven gear; 5. The cutter disc mechanism; 51. The connecting flange; 52. The connecting column; 53. The upper cutter disc; 531. The first cutter opening; 532. The first air inlet; 533. The second air inlet; 54. The lower cutter disc; 541. The second cutter opening; 542. The air outlet; 55. The guiding mechanism; 56. The retaining ring; 6. The sharpening mechanism; 61. The sharpening drive; 62. The grinding belt. DETAILED DESCRIPTION

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings and specific implementation methods of the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1-5 The head device of an automatic cutting machine shown in the figure comprises a base 1, an up and down moving mechanism 2, a cutting mechanism 3, a rotating mechanism 4, a knife disc mechanism 5 and a knife sharpening mechanism 6.

[0025] like Figure 1 , Figure 3 As shown, the base 1 is a rectangular frame structure surrounded by a top plate 11, a bottom plate 12 and two side plates 13, and the cross section of the side plate 13 is L-shaped to improve the stability of the base 1. A connecting plate 14 is fixed to the middle of the base 1, and the base 1 is installed on the automatic cutting machine through the connecting plate 14. A triangular reinforcement plate 15 is installed between the connecting plate 14 and the side plates 13 to ensure the stability of the operation of the head device.

[0026] like Figure 1 , Figure 3As shown, the up-and-down moving mechanism 2 includes a lifting plate 21 and a lifting drive 22. Two guide rods 23 are vertically installed between the top plate 11 and the connecting plate 14 of the base 1, and the lifting plate 21 is installed between the two guide rods 23 through a linear bearing. The lifting drive 22 is a lead screw linear module, which is vertically fixed on the top plate 11, and the nut seat of the lead screw linear module is fixedly connected to the lifting plate 21, and the lead screw linear module drives the lifting plate 21 to move up and down along the guide rods 23.

[0027] like Figure 1 , Figure 3 As shown, the cutting mechanism 3 is a vibrating knife assembly, including a cutting drive 31, an eccentric wheel 32, a crank 33, a sliding seat 34, a knife seat 35 and a cutting knife 36. The cutting drive 31 is a servo motor, and the cutting drive 31 is horizontally mounted on the rear side of the lifting plate 21, and the driving shaft of the cutting drive 31 passes through the lifting plate 21 and is fixedly connected to the eccentric wheel 32. The sliding seat 34 is mounted on the lower side of the eccentric wheel 32 through a vertical guide rail, the crank 33 is installed between the eccentric wheel 32 and the sliding seat 34, the knife seat 35 is vertically mounted on the lower end of the sliding seat 34 through a bearing, and the cutting knife 36 is vertically fixed on the lower end of the knife seat 35. The cutting drive 31 drives the eccentric wheel 32 to rotate, and drives the sliding seat 34 to reciprocate up and down through the crank 33, thereby driving the cutting knife 36 to vibrate up and down.

[0028] like Figure 1-Figure 3 As shown, the rotating mechanism 4 includes a rotating drive member 41 and a rotating disk 42. The rotating drive member 41 is a servo motor. The rotating drive member 41 is vertically mounted on the bottom plate 12 through a motor bracket. The output shaft of the rotating drive member 41 is fixed with a driving gear 43. The rotating disk 42 is rotatably mounted on the bottom plate 12 through a bearing. A third tool opening 421 is provided at the center of the rotating disk 42, and the cutting knife 36 passes through the third tool opening 421. A driven gear 44 is installed on the side of the rotating disk 42. The driving gear 43 is meshed with the driven gear 44. The rotating drive member 41 drives the rotating disk 41 to rotate through the driving gear 43 and the driven gear 44.

[0029] like Figure 1 , Figure 3-Figure 5 As shown, the cutter disc mechanism 5 includes a connecting flange 51, a connecting column 52, an upper cutter disc 53 and a lower cutter disc 54. The connecting flange 51 is fixed to the lower end of the rotating disc 42, the upper cutter disc 53 is installed on the lower end of the connecting flange 51 through the connecting column 52, and the lower cutter disc 54 is fixed to the lower end of the upper cutter disc 53, so that the upper cutter disc 53 and the lower cutter disc 54 can rotate under the drive of the rotating mechanism 4.

[0030] like Figure 1 , Figure 3-Figure 5As shown, the upper cutter disc 53 is a cylindrical hollow shell with an opening at the bottom, and a circular first cutter opening 531 is provided at the center of the upper cutter disc 53. A first air inlet 532 is provided on the side of the upper cutter disc 53, and the first air inlet 532 is connected to a high-pressure air source through a hose.

[0031] The lower knife disc 54 is disc-shaped, and a strip-shaped second knife opening 541 is provided at the center of the lower knife disc 54. The cutting knife 36 passes through the first knife opening 531 and the second knife opening 541 in sequence. A guide mechanism 55 is installed on the upper side of the lower knife disc 54. The guide mechanism 55 includes three guide wheels, which are respectively in contact with the two sides and the rear side of the cutting knife 36 to improve the stability of the cutting knife 36 during cutting.

[0032] A retaining ring 56 is fixed to the outside of the guide mechanism 55. The outer wall of the retaining ring 56, the upper wall of the lower blade disc 54 and the inner wall of the upper blade disc 53 form an annular air chamber, which is connected to the first air inlet 532, so that high-pressure air is blown into the air chamber. A plurality of air outlets 542 are evenly opened on the lower blade disc 54, and the air outlets 542 are located on the outside of the retaining ring 56. The high-pressure air in the air chamber is evenly ejected from the air outlets 542, so as to form a gas isolation layer between the lower blade disc 54 and the fabric, so as to prevent the blade disc mechanism from directly contacting the fabric, and at the same time, the fabric can be compressed by the high-pressure air.

[0033] like Figure 4 , Figure 5 As shown, a second air inlet 533 is also provided on the side of the upper cutter disc 53, and the second air inlet 533 penetrates the retaining ring 56, and the second air inlet 533 faces the blade of the cutter 36. The second air inlet 533 is connected to the high-pressure air source through a hose, so as to cool the cutter 36, avoid the melting of the fabric caused by the friction and heating of the cutter 36, and ensure the cutting quality.

[0034] like Figure 1 , Figure 3 As shown, a knife sharpening mechanism 6 is also installed on the bottom plate 12, and the knife sharpening mechanism 6 includes a knife sharpening drive 61, a driving wheel, a driven wheel and a grinding belt 62. The knife sharpening drive 61 is a servo motor, and the knife sharpening drive 61 is vertically installed on the bottom plate 12 through a motor seat, and the output shaft of the knife sharpening drive 61 passes through the bottom plate 12 and is connected to the driving wheel. The driven wheel is rotatably installed on the lower side of the bottom plate 12, and the grinding belt 62 is wound between the driving wheel and the driven wheel. The knife sharpening drive 61 drives the grinding belt 62 to rotate to grind the cutter 36.

[0035] Example 2

[0036] An automatic cutting machine includes a cutting bed, a plane moving assembly and the head device, wherein the plane moving assembly is mounted on the cutting bed, the head device is mounted on the plane moving assembly, and the plane moving assembly drives the head device to move along the cutting bed to achieve the cutting operation of the fabric. The cutting bed and the plane moving assembly are both prior art and will not be described in detail here.

[0037] The technical solution provided in the embodiments of the present application has at least the following technical effects or advantages:

[0038] An annular air chamber is formed by the upper blade disc, the lower blade disc and the retaining ring, and high-pressure air is blown into the air chamber through the first air inlet, so that the high-pressure air is blown out from the air outlet at the bottom of the air chamber, thereby forming a gas isolation layer between the fabric and the blade disc, avoiding direct contact between the blade disc and the fabric, and ensuring cutting accuracy and fabric quality.

[0039] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0040] The use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A head device of an automatic cutting machine, comprising a base and a cutting mechanism, wherein an up-and-down moving mechanism is fixed on the base, a cutting mechanism is fixed on the up-and-down moving mechanism, a knife disc mechanism is arranged on the lower side of the cutting mechanism, and the knife disc mechanism is connected to the base through a rotating mechanism, characterized in that: The cutter disc mechanism includes a connecting flange, a connecting column, an upper cutter disc and a lower cutter disc, the upper cutter disc is a cylindrical hollow shell with an opening at the bottom, a first cutting edge is provided at the center of the upper cutter disc, a first air inlet is provided at the side of the upper cutter disc, the first air inlet is connected to a high-pressure air source through a hose, and the upper cutter disc is connected to the connecting flange through a connecting column; the lower cutter disc is disc-shaped, a second cutting edge is provided at the center of the lower cutter disc, a guide mechanism is provided at the side of the second cutting edge, a retaining ring is provided at the outside of the guide mechanism, the outer wall of the retaining ring, the upper wall of the lower cutter disc and the inner wall of the upper cutter disc form an annular air chamber, the air chamber is connected to the first air inlet, and an air outlet is provided at the bottom of the air chamber.

2. The head device of an automatic cutting machine according to claim 1, characterized in that: The up-and-down moving mechanism comprises a lifting plate and a lifting driving member, wherein the lifting plate is slidably mounted on the side of the base, and the lifting driving member is fixed on the base, and the lifting driving member drives the lifting plate to move up and down reciprocatingly.

3. The head device of the automatic cutting machine according to claim 1, characterized in that: The cutting mechanism is a vibrating knife assembly, and the cutting knife of the vibrating knife assembly passes through the first knife opening and the second knife opening in sequence.

4. The head device of the automatic cutting machine according to claim 3, characterized in that: A second air inlet is provided on the side of the upper knife disc, the second air inlet is connected to a high-pressure air source through a hose, the second air inlet passes through the retaining ring, and the second air inlet faces the blade of the cutting knife.

5. The head device of the automatic cutting machine according to claim 1, characterized in that: The rotating mechanism includes a rotating drive member and a rotating disk. The rotating disk is rotatably installed at the lower end of the base. A third tool opening is opened in the center of the rotating disk. A driven gear is arranged on the side of the rotating disk. A driving gear is fixed to the output end of the rotating drive member, and the driving gear is meshed with the driven gear.

6. The head device of the automatic cutting machine according to claim 1, characterized in that: A knife sharpening mechanism is also installed at the bottom of the base.

7. An automatic cutting machine, characterized in that: It comprises the head device described in any one of claims 1-6.

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