Material cutting mechanism for metal C-shaped ring production

Abstract

The invention discloses a material cutting mechanism for metal C-shaped ring production, and relates to the technical field of steel belt cutting, the material cutting mechanism comprises a material cutting machine base, one side of the top surface of the material cutting machine base is fixedly connected with a suspension frame plate, the top of the suspension frame plate is fixedly provided with a feeding frame, and one side of the feeding frame in the length direction is provided with a driving motor; the output end of the driving motor is fixedly connected with a feeding roller, a material cutting tool rest is fixedly installed in the middle of the top face of the material cutting machine base, a strip material cutting piece is arranged on the material cutting tool rest, a strip material tensioning piece is arranged on the strip material cutting piece, and the feeding roller and the strip material tensioning piece are used for tensioning the two sides of a strip material cutting part. By means of the structure, the cutting force is shared by the two material cutting cutters, the strip is cut more evenly, in addition, through opposite bisection, a notch can be smoother, deformation of the notch is reduced, the strip is supported and tensioned, the strip is prevented from being bent and rubbing the material cutting cutters in the cutting process, and the cutting quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel strip cutting, in particular to a cutting mechanism for producing metal C-shaped rings. Background Art

[0002] The metal C-ring is a part used in the chassis structure of automobiles to reduce chassis vibration and improve ride comfort. The production process of the metal C-ring includes: loading (coil) - chamfering - leveling - cutting - rolling, and this type of product is usually made of aluminum.

[0003] Among them, cutting refers to the step of cutting the flattened aluminum strip into specified lengths. The existing cutting mechanism uses a single cutter to cut vertically to process the aluminum strip. One side of the cutter supports and presses the track, and the aluminum strip on the other side is suspended and dropped. However, when cutting the aluminum strip with a single cutter, the cut part of the aluminum strip is easily deformed, affecting the cut quality. Secondly, the aluminum strip in the suspended part will bend due to its own weight, and the scrape between the bent part and the cutter will further affect the cutting quality.

[0004] Therefore, a cutting mechanism for metal C-ring production is proposed to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention provides a cutting mechanism for the production of metal C-rings. The cutting knives cut towards each other, which can make the incision smoother and reduce the deformation of the incision. The strip is supported and tightened to avoid bending of the strip and scratching of the cutting knives during cutting, thereby improving the cutting quality to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cutting mechanism for the production of metal C-rings, comprising a cutting machine base: a suspension plate is fixedly connected to one side of the top surface of the cutting machine base, a feed rack is fixedly installed on the top of the suspension plate, a driving motor is arranged on one side of the length direction of the feed rack, a feeding roller is fixedly connected to the output end of the driving motor, a cutting knife holder is fixedly installed in the middle of the top surface of the cutting machine base, a strip cutting piece is arranged on the cutting knife holder, a strip tensioning piece is arranged on the strip cutting piece, and the feeding roller and the strip tensioning piece are used to tighten the two sides of the strip cutting part;

[0009] The strip cutting piece includes an upper knife holder and a lower knife holder, and the upper knife holder and the lower knife holder are both detachably mounted with cutting knives, and a transmission frame is fixedly mounted on both the front and rear sides of the middle part of the cutting knife holder, and the front and rear sides of the upper knife holder are fixedly connected with a first rack, and the front and rear sides of the lower knife holder are fixedly connected with a second rack, and the first rack and the second rack both slide vertically inside the transmission frame, and the middle part of the transmission frame is rotatably connected with a first gear, and both sides of the first gear in the diameter direction are respectively meshed with the toothed parts of the first rack and the second rack, and the top of the upper knife holder is fixedly connected with a telescopic cylinder, and the top end of the telescopic cylinder is fixedly connected to the top of the cutting knife holder.

[0010] Preferably, the feed rack is of a type with adjustable drive motor and feed roller height.

[0011] Preferably, the first rack is an I-shaped structure, the second rack is an L-shaped structure, the vertical parts of the first rack and the second rack are arranged in parallel, and the tooth patterns are arranged opposite to each other.

[0012] The cam is connected with the two link rods at the front and rear ends of the two guide wheels, and the two guide wheels are connected with each other at the rear ends of the two guide wheels, and the two guide wheels are connected with each other at the rear ends of the two guide wheels.

[0013] Preferably, the top surface of the supporting shaft is flush with the top surface of the suspension plate, and a cutting slit is provided between the suspension plate and the supporting plate, and the cutting slit is used to provide space for a cutting knife to cut the strip.

[0014] Preferably, the blanking chute is composed of a straight line segment and an arc segment, and the arc segment of the blanking chute is used to drive the supporting shaft to rotate.

[0015] Preferably, a thin film pressure sensor is fixedly sleeved on the outer surface of the tensioning roller, the thin film pressure sensor is communicatively connected to a control terminal, and the control terminal is communicatively connected to a driving motor and a telescopic cylinder respectively.

[0016] Preferably, both the upper and lower sides of the cutting knife holder are provided with a cutter cooling member for cooling the cutting knife, and the cutter cooling member includes two double-sided tooth racks, which are respectively fixedly connected to the upper knife holder and the lower knife holder on a side away from the cutting knife, and the left and right sides of the two double-sided tooth racks are provided with a rotating shaft, and the rotating shaft is rotatably connected to the inner wall of the cutting knife holder, and the middle part of the rotating shaft is fixedly sleeved with a second gear, and the second gear is meshed with the double-sided tooth rack, and a frame rod is symmetrically fixedly installed on the rotating shaft, and the end of the frame rod away from the rotating shaft is fixedly connected to a cooling container box, and the outer surface of the cooling container box is provided with a liquid inlet for replenishing coolant, and a cooling sponge is fixedly installed on the side of the cooling container box facing the cutting knife, and a plurality of liquid guiding sponges are evenly fixedly connected to the other side of the cooling sponge, and the liquid guiding sponge is arranged inside the cooling container box, and the liquid guiding sponge is used to transport coolant to the cooling sponge.

[0017] Preferably, the double-sided gear rack is a structure with symmetrical tooth patterns on the left and right sides.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a cutting mechanism for metal C-ring production, which has the following beneficial effects:

[0020] 1. The present invention extends the telescopic cylinder to drive the upper tool holder to descend. At the same time, the first rack descends and engages with the first gear to rotate, and then the first gear rotates and engages with the second rack to rise, so that the lower tool holder rises. The cutting knives on the upper tool holder and the lower tool holder cut against each other to cut the strip. By using the above structure, the cutting force is shared by the two cutting knives, the strip is cut more evenly, and the cutting against each other can make the incision smoother and reduce the deformation of the incision.

[0021] 2. The present invention first presses one side of the strip by the feed roller, and at the same time, the strip lifts the tensioning roller to stretch the tensioning spring, thereby pressing the other side of the strip against the support plate, and then, the upper tool holder is lowered to synchronously drive the transmission rod to push the connecting rod to move horizontally toward the side away from the cutting knife, and the slider slides along the straight section of the blanking chute. The one-way damper has a damping effect on the tensioning roller, so that the tensioning roller frictionally pulls the other side of the strip and straightens it just right. At the same time, it also ensures that the tension will not cause the side of the strip pressed by the feed roller to deviate. Through this arrangement, the strip can be supported and tightened to avoid bending of the strip and scratching of the cutting knife during cutting, thereby improving the cutting effect of the strip.

[0022] 3. The present invention can sense the pressure signal of the end of the strip on the tensioning roller through the thin film pressure sensor and feed it back to the control terminal. The control terminal then controls the drive motor to drive the feed roller to rotate according to the set data, so that the feed roller conveys the strip forward a fixed length, thereby reducing the time for adjusting the position of the strip when replacing the strip, improving the accuracy of the first cutting of the strip, and reducing errors.

[0023] 4. When the cutting knife of the present invention completes cutting and continues to descend, the slider slides along the arc segment of the blanking chute, driving the front and rear support shafts and support plates to flip downward, and the cut strip is dropped, thereby facilitating the unloading of the cut strip.

[0024] 5. The present invention drives the rotating shafts, the frame rods and the cooling container boxes on the left and right sides to rotate toward each other by meshing the second gears on the left and right sides of the double-sided gear rack, so that the cooling sponges on the left and right sides are gradually squeezed and rubbed with the cutting knife. The cooling sponge squeezes out part of the coolant to cool the cutting knife blade, and at the same time rubs the cutting knife blade to remove the chips generated by surface cutting. Moreover, after each squeezing, the coolant is replenished into the cooling sponge through the water absorption of the cooling sponge and the liquid-conducting sponge, so as to realize continuous and quantitative cooling of the cutting knife, avoid the long-term heating of the cutting blade affecting the cutting effect, further improve the practicality of the cutting mechanism, and at the same time use less coolant at a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the main structure of the present invention;

[0026] Figure 2 This is a structural diagram of the feed rack, drive motor and feed roller of the present invention;

[0027] Figure 3 It is a three-dimensional diagram of the structure related to the strip material cutting piece of the present invention;

[0028] Figure 4 It is a right view of the structure related to the strip material cutting piece of the present invention;

[0029] Figure 5 This is a structural diagram related to the strip tensioning member of the present invention;

[0030] Figure 6 For the present invention Figure 5 A magnified view of the structure of the middle A area;

[0031] Figure 7 A top view of the suspension plate, support plate and cutting knife seam structure of the present invention;

[0032] Figure 8 A three-dimensional diagram of the structure of the cutter cooling member of the present invention;

[0033] Fig. 9 It is a front view of the structure related to the cutter cooling member of the present invention;

[0034] Fig.10 This is a diagram showing the related structures of the cooling container box, cooling sponge and liquid-conducting sponge of the present invention.

[0035] Reference numerals:

[0036] 1. Cutting machine base; 2. Suspension plate; 3. Feeding rack; 4. Driving motor; 5. Feeding roller; 6. Cutting knife holder;

[0037] 7. Strip material cutting piece; 71. Upper knife holder; 72. Lower knife holder; 73. Cutting knife; 74. Transmission frame; 75. First rack; 76. Second rack; 77. First gear; 78. Telescopic cylinder;

[0038] 8. Strip tensioner; 81. Support shaft; 82. Support plate; 83. Transmission rod; 84. Connecting rod; 85. Round guide rod; 86. Sleeve; 87. I-shaped roller frame; 88. Compression spring; 89. Slider; 810. Blanking chute; 811. One-way damper; 812. Tension roller; 813. Thin film pressure sensor; 814. Cutting knife gap;

[0039] 9. Cutter cooling element; 91. Double-sided gear rack; 92. Rotating shaft; 93. Second gear; 94. Rack rod; 95. Cooling container box; 96. Liquid inlet; 97. Cooling sponge; 98. Liquid guiding sponge. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0042] Example 1, please refer to Figures 1 to 4 As shown:

[0043] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a cutting mechanism for the production of metal C-rings, including a cutting machine base 1: a suspension plate 2 is fixedly connected to one side of the top surface of the cutting machine base 1, a feed rack 3 is fixedly installed on the top of the suspension plate 2, a driving motor 4 is arranged on one side of the length direction of the feed rack 3, a feeding roller 5 is fixedly connected to the output end of the driving motor 4, a cutting knife holder 6 is fixedly installed in the middle of the top surface of the cutting machine base 1, a strip cutting piece 7 is arranged on the cutting knife holder 6, a strip tensioning piece 8 is arranged on the strip cutting piece 7, and the feeding roller 5 and the strip tensioning piece 8 are used to tighten the two sides of the strip cutting part;

[0044] The strip material cutting piece 7 comprises an upper tool holder 71 and a lower tool holder 72, on which a material cutting cutter 73 can be detachably installed, a transmission frame 74 is fixedly installed on both the front and rear sides of the middle of the material cutting tool holder 6, a first rack 75 is fixedly connected to the front and rear sides of the upper tool holder 71, and a second rack 76 is fixedly connected to the front and rear sides of the lower tool holder 72, the first rack 75 and the second rack 76 both slide vertically inside the transmission frame 74, a first gear 77 is rotatably connected to the middle of the transmission frame 74, and both sides of the first gear 77 in the diameter direction are meshed with the tooth pattern parts of the first rack 75 and the second rack 76 respectively, a telescopic cylinder 78 is fixedly connected to the top of the upper tool holder 71, and the top of the telescopic cylinder 78 is fixedly connected to the top of the material cutting tool holder 6;

[0045] Specifically, the two cutting knives 73 on the upper knife holder 71 and the lower knife holder 72 are staggered, and the two cutting knives 73 are moved toward each other by extending the telescopic cylinder 78. The cutting force will be shared by the two cutting knives 73, reducing the single-point stress on each cutting knife 73, and the strip can be cut more evenly. The oppositely moving cutting method can reduce the deformation around the incision, thereby improving the incision quality; one side of the strip is pressed by the feed roller 5, the other side of the strip is horizontally tightened by the strip tensioner 8, and the strip is cut by the cutting knife 73, which can avoid bending of the strip.

[0046] As a preference, the feed rack 3 is of a style capable of adjusting the height of the drive motor 4 and the feed roller 5;

[0047] Specifically, by adjusting the height of the drive motor 4 and the feed roller 5 through the feed rack 3, the strip can be reasonably pressed between the suspension plate 2 and the feed roller 5 when the strip is replaced. At the same time, the drive motor 4 drives the feed roller 5 to rotate, and the strip can be transported forward a constant distance.

[0048] Preferably, the first rack 75 is an I-shaped structure, and the second rack 76 is an L-shaped structure. The vertical parts of the first rack 75 and the second rack 76 are arranged in parallel, and the tooth patterns are arranged opposite to each other.

[0049] For further example 2, please refer to Figures 5 to 7 As shown:

[0050] The strip tensioning member 8 includes two supporting shafts 81, the ends of the two supporting shafts 81 are rotatably connected to the right side of the suspension plate 2, a supporting plate 82 is fixedly connected to the supporting shaft 81, the front and rear sides of the upper tool holder 71 are rotatably connected to a transmission rod 83, one end of the transmission rod 83 away from the upper tool holder 71 is rotatably connected to a connecting rod 84, the front and rear sides of the bottom surface of the connecting rod 84 are fixedly connected to a round guide rod 85, the bottom end of the round guide rod 85 is fixedly connected to a collar 86, the collar 86 is movably sleeved on the outer surface of the supporting shaft 81, and the round guide rod 8 5 is movably sleeved with a "J"-shaped roller frame 87 and a compression spring 88, one end of the compression spring 88 is fixedly connected to the collar 86, and the other end is fixedly connected to the "J"-shaped roller frame 87, a slider 89 is fixedly connected to the inner side of the collar 86, a blanking chute 810 is provided on the outer surface of the support shaft 81, and the outer surface of the slider 89 is slidably connected to the inner surface of the blanking chute 810, and one-way dampers 811 are fixedly installed on the front and rear sides of the inner wall of the "J"-shaped roller frame 87, and a tension roller 812 is connected between the two one-way dampers 811;

[0051] Among them, the one-way damper 811 is preferably a PR-099B-C one-way damper. Through the one-way damping function of the one-way damper 811, when the strip squeezes the tensioning roller 812, the tensioning roller 812 rotates in the forward direction with less damping. When the strip is tightened, the tensioning roller 812 tends to rotate in the reverse direction, which is subject to a greater damping effect and a relatively greater friction force, thereby facilitating the conveying and tightening of the strip.

[0052] Specifically, when the strip is conveyed to the tensioning roller 812, the tensioning roller 812 will be lifted up. At the same time, the upper tool holder 71 cuts downward to drive the tensioning roller 812 to tighten the strip. During this process, the friction force generated by the compression spring 88, the one-way damper 811, and the tensioning roller 812 provides tensioning force for the strip, and this friction force is smaller than the friction force of the feed roller 5 on the strip, thereby achieving the effect of tightening the strip.

[0053] Preferably, the top surface of the support shaft 81 is flush with the top surface of the suspension plate 2, and a cutting slit 814 is provided between the suspension plate 2 and the support plate 82, and the cutting slit 814 is used to provide a space for the cutting knife 73 to cut the strip;

[0054] The support plate 82 is kept horizontal before the upper knife holder 71 cuts downward, thereby supporting the strip material so that it is cut while being kept horizontal.

[0055] Preferably, the blanking chute 810 is composed of a straight line segment and an arc segment, and the arc segment of the blanking chute 810 is used to drive the support shaft 81 to rotate;

[0056] Among them, when the slider 89 slides in the straight section of the blanking chute 810, the support plate 82 is kept horizontal. When the slider 89 slides to the arc section of the blanking chute 810, it drives the front and rear support shafts 81 and the support plate 82 to flip downward and open to drop the cut strip.

[0057] Preferably, a thin film pressure sensor 813 is fixedly sleeved on the outer surface of the tension roller 812, and the thin film pressure sensor 813 is communicatively connected to the control terminal, and the control terminal is communicatively connected to the drive motor 4 and the telescopic cylinder 78 respectively;

[0058] Specifically, the thin film pressure sensor 813 can sense the pressure signal of the end of the strip on the tensioning roller 812 and feed it back to the control terminal. The control terminal then controls the drive motor 4 to drive the feed roller 5 to rotate according to the set data, so that the feed roller 5 conveys the strip forward a fixed length, thereby reducing the time for adjusting the position of the strip when replacing the strip, improving the accuracy of the first cutting of the strip, and reducing errors.

[0059] For further example 3, please refer to Figures 8 to 10 As shown:

[0060] The upper and lower sides of the cutting knife holder 6 are provided with a cutting knife cooling member 9 for cooling the cutting knife 73. The cutting knife cooling member 9 includes two double-sided gear racks 91. The two double-sided gear racks 91 are respectively fixedly connected to the upper knife holder 71 and the lower knife holder 72 on the side away from the cutting knife 73. The left and right sides of the two double-sided gear racks 91 are provided with a rotating shaft 92. The rotating shaft 92 is rotatably connected to the inner wall of the cutting knife holder 6. The middle part of the rotating shaft 92 is fixedly sleeved with a second gear 93. The second gear 93 is meshed with the double-sided gear rack 91. A rack 94 is symmetrically fixedly installed on the shaft 92, and a cooling container box 95 is fixedly connected to one end of the rack 94 away from the rotating shaft 92. A liquid inlet 96 for replenishing coolant is arranged on the outer surface of the cooling container box 95. A cooling sponge 97 is fixedly installed on the side of the cooling container box 95 facing the material cutting knife 73, and a plurality of liquid guiding sponges 98 are evenly fixedly connected to the other side of the cooling sponge 97. The liquid guiding sponges 98 are arranged inside the cooling container box 95, and the liquid guiding sponges 98 are used to transport coolant to the cooling sponge 97;

[0061] In the process of the cooling sponge 97 squeezing the cutting cutter 73, the cooling sponge 97 and the cutting cutter 73 will simultaneously produce friction and squeezing actions. Through the friction action, the second gear 93 can clean the chips at the blade of the cutting cutter 73. Through the squeezing action, the cooling sponge 97 will squeeze a certain amount of coolant to cool the cutting cutter 73. In addition, by utilizing the water absorption of the sponge, the squeezed second gear 93 is dry. The coolant in the cooling container box 95 can be guided to the cooling sponge 97 through the liquid guiding sponge 98 to keep the cooling sponge 97 moist.

[0062] Preferably, the double-sided gear rack 91 is a structure with symmetrical teeth on both sides.

[0063] Everything in the above example works like this:

[0064] Strip cutting process: When in use, the drive motor 4 is started to rotate the feeding roller 5 to convey the strip to a specified length, then the telescopic cylinder 78 is extended to drive the upper knife holder 71 to descend, and at the same time, the first rack 75 descends to engage with the first gear 77 to rotate, and then the first gear 77 rotates to engage with the second rack 76 to rise, so that the lower knife holder 72 rises, and the cutting knives 73 on the upper knife holder 71 and the lower knife holder 72 cut against each other to cut the strip;

[0065] The strip tensioning process: the feed roller 5 first presses one side of the strip, and at the same time, the strip lifts the tensioning roller 812, stretching the tensioning spring 88, thereby pressing the other side of the strip against the support plate 82, and then, the upper tool holder 71 descends and synchronously drives the transmission rod 83 to push the connecting rod 84 to move horizontally toward the side away from the cutting knife 73, and the slider 89 slides along the straight section of the blanking chute 810, and the one-way damper 811 has a damping effect on the tensioning roller 812, so that the tensioning roller 812 frictionally pulls the other side of the strip and straightens it just right, and at the same time, it also ensures that the tension will not cause the side of the strip pressed by the feed roller 5 to not deviate, and then, as the cutting knife 73 completes cutting and continues to descend, the slider 89 slides along the arc section of the blanking chute 810, thereby driving the front and rear support shafts 81 and the support plate 82 to flip downward, and the cut strip is dropped;

[0066] Blade cooling process: When the upper tool holder 71 and the lower tool holder 72 are moving away from each other after cutting, the double-sided gear holder 91 engages with the second gears 93 on the left and right sides, driving the rotating shafts 92, the frame rods 94 and the cooling container box 95 on the left and right sides to rotate towards each other, so that the cooling sponges 97 on the left and right sides are gradually squeezed and rubbed with the cutting knife 73. The cooling sponge 97 squeezes out part of the coolant to cool the blade of the cutting knife 73, and at the same time rubs the blade of the cutting knife 73 to remove the chips generated by surface cutting. Moreover, after each squeezing, the coolant is replenished to the cooling sponge 97 through the water absorption of the cooling sponge 97 and the liquid guiding sponge 98, thereby achieving continuous and quantitative cooling of the cutting knife 73.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting mechanism for metal C-ring production, characterized in that: The invention comprises a cutting machine base (1): a suspension plate (2) is fixedly connected to one side of the top surface of the cutting machine base (1), a feed frame (3) is fixedly installed on the top of the suspension plate (2), a driving motor (4) is arranged on one side of the length direction of the feed frame (3), a feeding roller (5) is fixedly connected to the output end of the driving motor (4), a cutting knife holder (6) is fixedly installed in the middle of the top surface of the cutting machine base (1), a strip cutting piece (7) is arranged on the cutting knife holder (6), a strip tensioning piece (8) is arranged on the strip cutting piece (7), and the feeding roller (5) and the strip tensioning piece (8) are used to tension the two sides of the strip cutting part; The strip material cutting piece (7) comprises an upper knife frame (71) and a lower knife frame (72), and the upper knife frame (71) and the lower knife frame (72) are both detachably mounted with a cutting knife (73). A transmission frame (74) is fixedly mounted on both the front and rear sides of the middle of the cutting knife frame (6), and the front and rear sides of the upper knife frame (71) are both fixedly connected with a first rack (75), and the front and rear sides of the lower knife frame (72) are both fixedly connected with a second rack (76), and the first rack ( The first rack (75) and the second rack (76) both slide vertically inside the transmission frame (74); the middle part of the transmission frame (74) is rotatably connected with a first gear (77); the two sides of the first gear (77) in the diameter direction are respectively meshed with the toothed parts of the first rack (75) and the second rack (76); the top of the upper tool holder (71) is fixedly connected with a telescopic cylinder (78); the top end of the telescopic cylinder (78) is fixedly connected with the top of the cutting tool holder (6).

2. The cutting mechanism for metal C-ring production according to claim 1, characterized in that: The feed rack (3) is of a type capable of adjusting the height of the driving motor (4) and the feed roller (5).

3. The material cutting mechanism for metal C-ring production according to claim 1, characterized in that: The first rack (75) is an I-shaped structure, the second rack (76) is an L-shaped structure, the vertical parts of the first rack (75) and the second rack (76) are arranged in parallel, and the tooth patterns are arranged opposite to each other.

4. The material cutting mechanism for metal C-ring production according to claim 1, characterized in that: The strip tensioning member (8) comprises two supporting shafts (81), the ends of the two supporting shafts (81) are rotatably connected to the right side of the suspension plate (2), the supporting shafts (81) are fixedly connected to a supporting plate (82), the front and rear sides of the upper tool holder (71) are rotatably connected to transmission rods (83), one end of the transmission rod (83) away from the upper tool holder (71) is rotatably connected to a connecting rod (84), the front and rear sides of the bottom surface of the connecting rod (84) are fixedly connected to round guide rods (85), the bottom end of the round guide rod (85) is fixedly connected to a sleeve ring (86), the sleeve ring (86) is movably sleeved on the outer surface of the supporting shaft (81), the The outer surface of the round guide rod (85) is movably sleeved with an "X"-shaped roller frame (87) and a clamping spring (88); one end of the clamping spring (88) is fixedly connected to the sleeve ring (86), and the other end is fixedly connected to the "X"-shaped roller frame (87); the inner side of the sleeve ring (86) is fixedly connected with a slider (89); the outer surface of the support shaft (81) is provided with a blanking chute (810); the outer surface of the slider (89) is slidably connected to the inner surface of the blanking chute (810); one-way dampers (811) are fixedly installed on the front and rear sides of the inner wall of the "X"-shaped roller frame (87); a tensioning roller (812) is connected between the two one-way dampers (811).

5. The material cutting mechanism for metal C-ring production according to claim 4, characterized in that: The top surface of the support shaft (81) is flush with the top surface of the suspension plate (2), and a cutting slit (814) is provided between the suspension plate (2) and the support plate (82), and the cutting slit (814) is used to provide space for the cutting knife (73) to cut the strip.

6. The material cutting mechanism for metal C-ring production according to claim 4, characterized in that: The material dropping chute (810) is composed of a straight line segment and an arc segment, and the arc segment of the material dropping chute (810) is used to drive the supporting shaft (81) to rotate.

7. The material cutting mechanism for metal C-ring production according to claim 4, characterized in that: A thin film pressure sensor (813) is fixedly sleeved on the outer surface of the tensioning roller (812), and the thin film pressure sensor (813) is communicatively connected to a control terminal, and the control terminal is communicatively connected to a drive motor (4) and a telescopic cylinder (78) respectively.

8. The material cutting mechanism for metal C-ring production according to claim 1, characterized in that: The upper and lower sides of the cutting knife holder (6) are both provided with a cutting knife cooling member (9) for cooling the cutting knife (73). The cutting knife cooling member (9) comprises two double-sided gear racks (91). The two double-sided gear racks (91) are respectively fixedly connected to the upper knife holder (71) and the lower knife holder (72) on a side away from the cutting knife (73). The left and right sides of the two double-sided gear racks (91) are both provided with a rotating shaft (92). The rotating shaft (92) is rotatably connected to the inner wall of the cutting knife holder (6). The middle part of the rotating shaft (92) is fixedly sleeved with a second gear (93). The second gear (93) is meshed with the double-sided gear rack (91). A rack rod (94) is symmetrically fixedly mounted on the rotating shaft (92); one end of the rack rod (94) away from the rotating shaft (92) is fixedly connected to a cooling container box (95); an outer surface of the cooling container box (95) is provided with a liquid inlet (96) for replenishing cooling liquid; a cooling sponge (97) is fixedly mounted on the side of the cooling container box (95) facing the material cutting knife (73); a plurality of liquid guiding sponges (98) are evenly fixedly connected to the other side of the cooling sponge (97); the liquid guiding sponge (98) is arranged inside the cooling container box (95), and the liquid guiding sponge (98) is used to transport cooling liquid to the cooling sponge (97).

9. The material cutting mechanism for metal C-ring production according to claim 8, characterized in that: The double-sided gear rack (91) is a structure with symmetrical tooth patterns on the left and right sides.

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