A ring vertical knife special-shaped polyurethane latex sponge cutting machine

Abstract

The present application relates to the technical field of sponge cutting machines, and discloses a ring vertical knife special-shaped polyurethane latex sponge cutting machine, which is used to solve the problem of reduced tension of the knife belt due to wear of the ring knife belt. When the ring knife belt is driven to operate by the active knife belt wheel, the deformation of the elastic block in the support groove determines the flow direction of the gas introduced by the air pump. When the deformation of the elastic block is insufficient, it means that the tension of the ring knife belt is small. The gas introduced by the air pump pushes the slider, the elastic block and the support block to move, so as to increase the diameter of the active knife belt wheel, thereby increasing the tension of the ring knife belt, and preventing the ring knife belt and the active knife belt wheel from sliding relative to each other due to the tension of the ring knife belt being too small.

Description

Technical Field

[0001] The present application relates to the technical field of sponge cutting machines, and in particular to a ring-shaped vertical-knife special-shaped polyurethane latex sponge cutting machine. Background Art

[0002] Shaped polyurethane latex sponge is a polyurethane material product with a specific shape and structure. It combines the excellent properties of polyurethane materials with the softness and elasticity of latex. The production process of shaped polyurethane latex sponge is relatively complicated, requiring mold making, material mixing, foaming, cutting and trimming. The vertical ring knife cutting machine is a mechanical equipment specially used for cutting sponges, foams, pearl cotton and other soft materials. It is widely used in the cutting process of shaped polyurethane latex sponge.

[0003] The ring vertical knife cutting machine is generally composed of a gantry, a working platform, a knife belt pulley group, an annular knife belt, a torque mechanism and a control system. The annular knife belt, as a flexible component, relies on friction to work, and will inevitably produce wear during use. This is its inherent characteristic as a lossy component. With the increase of usage time, due to the gradual wear of the annular knife belt, a gap will appear between the annular knife belt and the knife belt pulley group, resulting in a decrease in the tension of the annular knife belt, which will cause slippage between the annular knife belt and the knife belt pulley group, and a weakening of the cutting force of the annular knife belt. Summary of the invention

[0004] The present application proposes a circular vertical knife special-shaped polyurethane latex sponge cutting machine, which has the advantage of automatically adjusting the tension of the circular knife belt, and is used to solve the problem of reduced tension of the knife belt due to wear of the circular knife belt.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a ring vertical knife special-shaped polyurethane latex sponge cutting machine, including a gantry, a working platform, a knife belt wheel group, a ring knife belt, a torque mechanism and a control system, the knife belt wheel group includes a fixed knife belt wheel, a movable knife belt wheel and an active knife belt wheel, the fixed knife belt wheel, the movable knife belt wheel and the active knife belt wheel are provided with a ring knife belt on the movable sleeve, the active knife belt wheel side wall is provided with support grooves arranged in a ring array, the support groove is installed with a detection mechanism for detecting the tension of the ring knife belt, the detection mechanism includes: a slider, a sliding seal is installed at the bottom end of the support groove; an elastic block , fixedly installed on the top of the slider; the support block is slidably arranged in the support groove, the bottom end is close to the upper end surface of the elastic block, and the top end extends out of the support groove and is close to the annular knife belt; the slide groove is opened on the slider and the elastic block; the resistor bar is fixedly installed on the side wall of one side of the slide groove; the slide plate is slidably installed in the slide groove, and the bottom end is fixedly connected with a support spring; the conductor ball is embedded in the bottom end of the slide plate close to the resistor bar and is in sliding contact with the resistor bar; the slip ring is fixedly connected to one side of the active knife belt wheel, and the slip ring, the resistor bar, the conductor ball and the control system are electrically connected; the active knife belt wheel is connected with an adjustment mechanism for adjusting the tension of the annular knife belt.

[0006] Furthermore, the adjustment mechanism includes: a rotary joint, the rotary joint includes an inner ring and an outer ring, the outer ring of the rotary joint is fixedly installed on one side of the active knife pulley, and the air outlet of the outer ring is connected to the bottom end of the support groove; an air pump, fixedly installed on the inner wall of the gantry, and the air outlet is connected to the inner ring of the rotary joint; an air vent, which is opened on the slider and passes through the slider, and the air vent is blocked by the slider; an anti-blocking hole, which is opened on the slider above the air vent; an air jet hole, which is opened on the support block and connects the bottom end of the support block and the side wall; and a plurality of the sliders are fixedly connected.

[0007] Furthermore, a limit strip is fixedly installed on the edge of the sliding block close to the rotating joint.

[0008] Furthermore, a plurality of fixing grooves are equidistantly provided at the bottom end of the side wall of the support groove, and a fixing mechanism is provided in the slide block for use with the fixing grooves, and the fixing mechanism includes: a supporting spring block movably arranged at the bottom end of the slide groove; an electromagnetic strip, one end of which is fixedly connected to the two ends of the supporting spring block, and the other end of which passes through the side wall of the slide block and extends into the fixing groove.

[0009] Furthermore, the electromagnetic strips are electrically connected to a control system via a slip ring, and when the two electromagnetic strips are energized, a magnetic force that attracts each other is generated.

[0010] Furthermore, a touch switch is fixedly installed in the fixing groove farthest from the rotary joint, one end of the touch switch extends into the supporting groove, and the touch switch is electrically connected to the control system through a slip ring.

[0011] Furthermore, an electromagnetic block is embedded in the side wall of the support groove away from the rotary joint, and the slider is an electromagnetic block. The electromagnetic block and the slider are electrically connected to the control system through a slip ring. When power is turned on, the electromagnetic block and the slider generate mutually repelling magnetic forces.

[0012] Furthermore, a transmission tooth is fixedly mounted on the active knife belt wheel between two adjacent support grooves, knife belt grooves are equidistantly formed on the annular knife belt, and the transmission tooth is movably inserted into the knife belt grooves of the annular knife belt.

[0013] This application has the following beneficial effects:

[0014] 1. The present application provides a circular vertical knife special-shaped polyurethane latex sponge cutting machine. When the circular knife belt is driven to operate by the active knife belt pulley, the deformation of the elastic block in the support groove determines the flow direction of the gas introduced by the air pump. When the deformation of the elastic block is insufficient, it means that the tensioning force of the circular knife belt is small. The gas introduced by the air pump pushes the slider, the elastic block and the support block to move to increase the diameter of the active knife belt pulley, thereby increasing the tensioning force of the circular knife belt and preventing the relative sliding of the circular knife belt and the active knife belt pulley due to the tensioning force of the circular knife belt being too small.

[0015] 2. The present application provides a circular vertical knife special-shaped polyurethane latex sponge cutting machine. When the circular knife belt is driven by the active knife belt pulley, the deformation of the elastic block in the support groove determines the squeezing pressure of the circular knife belt on the active knife belt pulley, thereby determining whether the tensioning force of the circular knife belt meets the standard. During operation, the tensioning force of the circular knife belt can be automatically detected.

[0016] 3. The present application provides a circular vertical blade special-shaped polyurethane latex sponge cutting machine, which determines the degree of wear of the circular knife belt by the position of the slider and the elastic block. When the slider and the elastic block release the trigger switch, it means that the wear has reached the maximum degree and the control system needs to prompt replacement, thereby strengthening the monitoring of the service life of the circular knife belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the specification, illustrate the embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0018] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of the gantry of the present invention;

[0021] Figure 3 It is a schematic diagram of the connection structure between the driving pulley and the knife belt of the present invention;

[0022] Figure 4 is a cross-sectional view of the driving pulley of the present invention;

[0023] Figure 5 It is a cross-sectional view of the driving pulley, the slider and the elastic block of the present invention;

[0024] Figure 6 For the present invention Figure 5 A magnified view of the local structure at center A;

[0025] Figure 7 For the present invention Figure 5 A schematic diagram of the internal structure of the support groove is removed;

[0026] Figure 8 It is a schematic diagram of the connection between the slider and the elastic block of the present invention;

[0027] Fig. 9 It is a cross-sectional view of the slider and the elastic block of the present invention.

[0028] In the figure: 1. gantry; 2. working platform; 301. fixed knife pulley; 302. movable knife pulley; 303. active knife pulley; 304. supporting groove; 305. transmission tooth; 4. annular knife belt; 401. knife belt groove; 5. torque mechanism; 601. slider; 602. elastic block; 603. limit strip; 604. supporting block; 605. slide groove; 606. resistor strip; 607. slide plate; 608. conductor ball; 609. slip ring; 701. air pump; 702. rotary joint; 703. vent; 704. jet hole; 705. anti-blocking hole; 801. fixed groove; 802. electromagnetic strip; 803. supporting spring block; 9. touch switch; 10. electromagnetic block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. Example

[0030] See also Figure 1 and Figure 2A ring vertical knife special-shaped polyurethane latex sponge cutting machine, comprising a gantry 1, a working platform 2, a knife belt pulley group, a ring knife belt 4, a torque mechanism 5 and a control system. Two working platforms 2 with the same structure and synchronous operation are fixedly installed in front and rear of the gantry 1. The knife belt pulley group is arranged in the gantry 1. The knife belt pulley group includes a fixed knife belt pulley 301, a movable knife belt pulley 302 and an active knife belt pulley 303. A support shaft is fixedly installed at one corner of the top and two corners of the bottom of the gantry 1. A movable sleeve on the support shaft at a diagonal position is provided with a fixed knife belt pulley 301, and a movable sleeve on the other support shaft is provided with an active knife belt pulley 303. One of the active knife belt pulleys 303 is provided with a movable sleeve. A stepper motor is fixedly installed on the side, and the stepper motor and the active knife pulley 303 are driven by a belt. The top and bottom ends of the inner wall of the gantry 1 are respectively provided with movable knife pulleys 302 which can move laterally. The fixed knife pulley 301, the movable knife pulley 302 and the active knife pulley 303 are movablely sleeved with an annular knife belt 4. A support rod is fixedly installed on the gantry 1 above and below the working platform 2, and a torsion mechanism 5 which can move laterally is provided on the support rod. The torsion mechanism 5 is movably sleeved on the annular knife belt 4, and the torsion mechanism 5 is used to adjust the cutting angle and direction of the annular knife belt 4. A control system is fixedly installed on one side of the gantry 1, and the control system is used to control the operation of the entire cutting machine.

[0031] See also Figure 3-Figure 6The side wall of the active knife belt wheel 303 is provided with support grooves 304 arranged in an annular array, and a detection mechanism for detecting the tension of the annular knife belt 4 is installed in the support groove 304. The detection mechanism includes a slider 601, an elastic block 602, a support block 604, a resistor bar 606, a slide plate 607 and a conductor ball 608. The slider 601 is slidingly sealed and installed at the bottom end of the support groove 304. The top of the slider 601 is fixedly installed with an elastic block 602, and the elastic block 602 can produce extrusion deformation. A support block 604 is slidably arranged in the support groove 304, and the bottom end of the support block 604 is close to the upper end surface of the elastic block 602, and the top of the support block 604 extends The support groove 304 is out and close to the annular knife belt 4. A slide groove 605 is opened on the slider 601 and the elastic block 602. A resistor bar 606 is fixedly installed on the side wall of one side of the slide groove 605. A slide plate 607 is slidably installed in the slide groove 605. The bottom end of the slide plate 607 is fixedly connected to a supporting spring. The top of the slide plate 607 is close to the bottom end of the support block 604. A conductor ball 608 is embedded and installed at the bottom end of the slide plate 607 close to the resistor bar 606. The conductor ball 608 is in sliding contact with the resistor bar 606. A slip ring 609 is fixedly connected to one side of the active knife belt pulley 303. The slip ring 609, the resistor bar 606, the conductor ball 608 and the control The system is electrically connected; when the stepper motor is started to drive the active knife belt wheel 303 to drive the annular knife belt 4 to rotate, the inner wall of the annular knife belt 4 squeezes the support block 604 on the active knife belt wheel 303, and the support block 604 squeezes the elastic block 602 at the bottom, causing the elastic block 602 to produce an extrusion deformation, and the support block 604 that squeezes the elastic block 602 downward pushes the slide plate 607 and the conductor ball 608 to move downward, thereby changing the contact position of the conductor ball 608 and the resistor bar 606, and the control system detects the resistance value of the resistor bar 606 connected to the circuit, determines the downward movement of the slide plate 607 and the conductor ball 608, and thus determines the tension of the annular knife belt 4. The resistance value of the resistance bar 606 connected to the circuit is within the specified range, which means that the support block 604 has sufficient supporting force on the annular knife belt 4 and the tensioning force of the annular knife belt 4 is sufficient. When the maximum extrusion amount received by the elastic block 602 is less than the specified range, it means that the supporting force of the support block 604 on the annular knife belt 4 is less than the specified range, and the tensioning force of the annular knife belt 4 is insufficient, so that the control system prompts the adjustment of the tensioning force of the annular knife belt 4; and, the active knife belt wheel 303 is connected to an adjusting mechanism for adjusting the tensioning force of the annular knife belt 4. When the detection mechanism detects that the tensioning force of the annular knife belt 4 is less than the specified range, the adjusting mechanism can automatically adjust the tensioning force of the annular knife belt 4.

[0032] See also Figure 3 , Figure 4 and Figure 6The regulating mechanism includes an air pump 701, a rotary joint 702, an air vent 703, an air jet hole 704 and an anti-blocking hole 705. The rotary joint 702 includes an inner ring and an outer ring. The outer ring of the rotary joint 702 is fixedly installed on one side of the active knife pulley 303. The air inlet of the inner ring of the rotary joint 702 is connected to the air outlet of the air pump 701. The air pump 701 is fixedly installed on the inner wall of the gantry 1. The air outlet of the outer ring of the rotary joint 702 is connected to the bottom end of the support groove 304; please refer to Figure 6 The slider 601 is provided with a vent hole 703 that penetrates the slider 601. The vent hole 703 is blocked by the slide plate 607. The slide plate 607 located above the vent hole 703 is provided with an anti-blocking hole 705. When the slide plate 607 is pressed downward by the support block 604, the anti-blocking hole 705 is connected with the vent hole 703. Please refer to Figure 4 The support block 604 is provided with a gas injection hole 704 connecting the bottom end of the support block 604 and the side wall, so that the gas at the bottom end of the support block 604 can be discharged from the gas injection hole 704, see Figure 8 , several sliders 601 are fixedly connected to ensure that the sliders 601 and the elastic blocks 602 move simultaneously. During operation, the air pump 701 is started, and the air pump 701 blows gas into the support groove 304 through the rotary joint 702 (the gas passing through the rotary joint 702 only enters the support groove 304 at the bottom of the support block 604 squeezed by the annular knife belt 4). When the annular knife belt 4 squeezes the support block 604, the support block 604 squeezes the elastic block 602 at the lower end. When the tension of the annular knife belt 4 is sufficient, the squeezing force of the support block 604 at the bottom of the annular knife belt 4 on the elastic block 602 is sufficient, and the deformation of the elastic block 602 is large enough. The support block 604 pushes the slide plate 607 downward, so that the anti-blocking hole 705 on the slide plate 607 is connected with the vent hole 703 on the slider 601, so that the gas enters the other side of the slider 601 through the vent hole 703 and the anti-blocking hole 705, and finally blows to the annular knife belt 4 through the air jet hole 704. The inner wall performs a certain amount of gas heat dissipation on the annular knife belt 4 to reduce the temperature of the annular knife belt 4; when the tensioning force of the annular knife belt 4 is insufficient, the support block 604 at the bottom end of the annular knife belt 4 does not exert sufficient squeezing force on the elastic block 602. At this time, the deformation of the elastic block 602 is small, and the support block 604 pushes the slide plate 607 downward by a small amount. The vent hole 703 on the slider 601 is also blocked by the slider 607. The incoming gas will push the slider 601 and the elastic block 602 to move toward the inside of the support groove 304, so that the top of the elastic block 602 pushes the support block 604 to move the support block 604 upward, increasing the diameter of the active knife belt pulley 303, adjusting the support of the active knife belt pulley 303 to the annular knife belt 4, ensuring the tensioning force of the annular knife belt 4, thereby automatically adjusting the tensioning force of the annular knife belt 4 so that the tensioning force of the annular knife belt 4 is within the specified range.

[0033] A limit strip 603 is fixedly installed on the edge of the slider 601 close to the rotating joint 702. The limit strip 603 limits the slider 601 and the elastic block 602 to prevent the slider 601 and the elastic block 602 from being close to the side wall of the support groove 304, resulting in the gas being unable to push the slider 601 and the elastic block 602.

[0034] See also Figure 6 , Figure 7 and Fig. 9 A plurality of fixed grooves 801 are equidistantly provided at the bottom end of the side wall of the support groove 304. A fixing mechanism used in conjunction with the fixed groove 801 is provided in the slider 601. The fixing mechanism is used to fix the slider 601 to prevent the slider 601 from sliding freely in the support groove 304. The fixing mechanism includes an electromagnetic strip 802 and a supporting spring block 803. A supporting spring block 803 is movably provided at the bottom end of the slide groove 605. The two ends of the supporting spring block 803 are fixedly connected with the electromagnetic strip 802. The other end of the electromagnetic strip 802 penetrates the side wall of the slider 601 and extends into the fixed groove 801. The electromagnetic strip 802 is electrically connected to the control system through the slip ring 609, and whether the electromagnetic strip 802 is energized is controlled by the contact position of the conductor ball 608 and the resistor strip 606. When the tension of the annular knife band 4 is insufficient, the extrusion deformation of the elastic block 602 by the support block 604 becomes smaller, and the position where the slide plate 607 and the conductor ball 608 are pushed downward by the support block 604 becomes smaller. At this time, when the two electromagnetic strips 802 are energized, the two electromagnetic strips 802 generate a magnetic force that attracts each other, and the two electromagnetic strips 802 slide out of the fixing groove 801, releasing the fixation of the slider 601.

[0035] See also Figure 7 A touch switch 9 is fixedly installed in the fixed groove 801 farthest from the rotary joint 702, one end of the touch switch 9 extends into the support groove 304, and the touch switch 9 is electrically connected to the control system through the slip ring 609. Due to the adjustment of the tension of the annular knife belt 4, the slider 601 and the elastic block 602 will slide toward the touch switch 9. When the slider 601 squeezes the touch switch 9, it means that the slider 601 and the elastic block 602 have pushed the support block 604 to the top, and the tension of the annular knife belt 4 cannot be adjusted subsequently, so that the control system reminds the staff to replace the annular knife belt 4 to prevent the annular knife belt 4 that has reached the wear degree from being used continuously, resulting in the phenomenon of the annular knife belt 4 breaking.

[0036] See also Figure 7The side wall of the support groove 304 away from the rotary joint 702 is embedded with an electromagnetic block 10, and the slider 601 is an electromagnet. The electromagnetic block 10 and the slider 601 are electrically connected to the control system through the slip ring 609. When powered on, the electromagnetic block 10 and the slider 601 generate a mutually repelling magnetic force. When the annular knife belt 4 needs to be replaced, the electromagnetic block 10 and the slider 601 are powered on through the control system, so that the electromagnetic block 10 pushes the slider 601 and the elastic block 602 to move toward the rotary joint 702, so that the slider 601 and the elastic block 602 return to the initial position.

[0037] See also Figure 3 A transmission tooth 305 is fixedly mounted on the active knife belt wheel 303 between two adjacent support grooves 304, knife belt grooves 401 are equidistantly provided on the annular knife belt 4, and the distance between two adjacent knife belt grooves 401 is equidistantly the distance between two transmission teeth 305, and the transmission tooth 305 is movably inserted into the knife belt groove 401 of the annular knife belt 4. When the stepper motor drives the active knife belt wheel 303 to rotate through the belt, the transmission tooth 305 of the active knife belt wheel 303 pushes the annular knife belt 4 to rotate, thereby preventing the annular knife belt 4 and the transmission tooth 305 from sliding relative to each other, and the friction between the annular knife belt 4 and the active knife belt wheel 303 is reduced by pushing the transmission tooth 305 to push the knife belt groove 401, thereby extending the service life of the annular knife belt 4.

[0038] The working principle of the present invention is as follows:

[0039] See also Figure 1-Figure 9When using the ring vertical knife cutting machine to cut the special-shaped polyurethane latex sponge, the stepper motor is started through the control device, and the stepper motor drives the active knife pulley 303 to rotate through the belt, and the active knife pulley 303 drives the annular knife belt 4 to rotate. At the position where the annular knife belt 4 contacts the active knife pulley 303, the inner wall of the annular knife belt 4 squeezes the support block 604 on the active knife pulley 303, so that the support block 604 slides into the support groove 304, and the sliding support block 604 squeezes the elastic block 602 at the bottom, causing the elastic block 602 to produce an extrusion deformation, and at the same time pushes the slide plate 607 and the conductor ball 608 to move downward, thereby changing the contact position of the conductor ball 608 and the resistor bar 606. When the tension of the annular knife belt 4 is within the specified range, the annular knife belt 4 is pressed against the support block 604. The extrusion force is large enough, and the deformation of the support block 604 squeezing the elastic block 602 is large enough, so that the conductor ball 608 contacts the resistor bar 606 at the specified position. At this time, the control system detects the resistance value of the resistor bar 606 connected to the circuit, and determines the downward movement of the slide plate 607 and the conductor ball 608, thereby determining whether the tensioning force of the annular knife belt 4 is within the specified range. When the resistance value of the resistor bar 606 connected to the circuit is within the specified range, it means that the support block 604 has sufficient supporting force on the annular knife belt 4, and the tensioning force of the annular knife belt 4 is sufficient. When the maximum extrusion amount of the elastic block 602 is less than the specified range, it means that the supporting force of the support block 604 on the annular knife belt 4 is less than the specified range, and the tensioning force of the annular knife belt 4 is insufficient, so that the control system prompts the adjustment of the tensioning force of the annular knife belt 4.

[0040] When the tension of the annular knife belt 4 is insufficient, the force of the annular knife belt 4 squeezing the support block 604 is reduced, and the support block 604 pushes the slide plate 607 and the conductor ball 608 to move downward a small amount. At this time, the electromagnetic strip 802 is energized, and the two electromagnetic strips 802 generate a force of attraction to each other, so that the electromagnetic strip 802 slides out of the fixed groove 801, and the electromagnetic strip 802 is released from the limit of the slider 601; at the same time, due to the small downward movement of the support block 604, the downward movement of the slide plate 607 pushed by the support block 604 is reduced, and the anti-blocking hole 705 cannot be connected with the vent hole 703. The gas entering through the air pump 701 and the rotary joint 702 pushes the slider 601 and the elastic block 602 to slide, and the top of the elastic block 602 pushes the upper support block 604 to move to the outside of the support groove 304, thereby increasing the diameter of the active knife belt wheel 303 supporting the annular knife belt 4, ensuring the tension of the annular knife belt 4, thereby automatically adjusting the tension of the annular knife belt 4, making the tension of the annular knife belt 4 within the specified range, and preventing the tension of the annular knife belt 4 from being too small, resulting in relative sliding between the annular knife belt 4 and the active knife belt wheel 303.

[0041] Furthermore, when the slider 601 squeezes the touch switch 9, it means that the slider 601 and the elastic block 602 have pushed the support block 604 to the top, and the tension of the annular knife belt 4 can no longer be adjusted subsequently, so that the control system reminds the staff that the annular knife belt 4 needs to be replaced to prevent the annular knife belt 4 that has reached the wear degree from being continued to be used, which may cause the annular knife belt 4 to break.

Claims

1. A circular vertical knife special-shaped polyurethane latex sponge cutting machine, comprising a gantry (1), a working platform (2), a knife belt wheel group, an annular knife belt (4), a torque mechanism (5) and a control system, wherein the knife belt wheel group comprises a fixed knife belt wheel (301), a movable knife belt wheel (302) and an active knife belt wheel (303), and an annular knife belt (4) is movably sleeved on the fixed knife belt wheel (301), the movable knife belt wheel (302) and the active knife belt wheel (303), and characterized in that: The side wall of the active knife belt wheel (303) is provided with support grooves (304) arranged in an annular array, and a detection mechanism for detecting the tensioning force of the annular knife belt (4) is installed in the support groove (304), and the detection mechanism comprises: A slider (601) and a sliding seal are installed at the bottom end of the support groove (304); An elastic block (602) is fixedly mounted on the top of the sliding block (601); A support block (604) is slidably disposed in the support groove (304), with its bottom end closely attached to the upper end surface of the elastic block (602) and its top end extending out of the support groove (304) and closely attached to the annular knife band (4); A slide groove (605) is provided on the slide block (601) and the elastic block (602); The resistance bar (606) is fixedly mounted on a side wall of the slide groove (605); A slide plate (607) is slidably mounted in the slide groove (605), and a support spring is fixedly connected to the bottom end; A conductor ball (608) is embedded in the bottom end of the sliding plate (607) close to the resistor bar (606) and is in sliding contact with the resistor bar (606); A slip ring (609) is fixedly connected to one side of the active knife pulley (303), and the slip ring (609), the resistor bar (606), the conductor ball (608) and the control system are electrically connected; The active knife belt wheel (303) is connected to an adjustment mechanism for adjusting the tension of the annular knife belt (4); The regulating mechanism comprises: A rotary joint (702), the rotary joint (702) comprising an inner ring and an outer ring, the outer ring of the rotary joint (702) being fixedly mounted on one side of the active knife pulley (303), and the air outlet of the outer ring being in communication with the bottom end of the support groove (304); An air pump (701) is fixedly mounted on the inner wall of the gantry (1), and an air outlet end is communicated with the inner ring of the rotary joint (702); A vent hole (703) is formed on the slider (601) and passes through the slider (601), wherein the vent hole (703) is blocked by the slide plate (607); An anti-blocking hole (705) is provided on the slide plate (607) above the vent hole (703); The air injection hole (704) is formed on the support block (604) and communicates with the bottom end and the side wall of the support block (604); A plurality of the sliding blocks (601) are fixedly connected to each other.

2. The ring vertical knife special-shaped polyurethane latex sponge cutting machine according to claim 1 is characterized by: A limit strip (603) is fixedly mounted on the edge of the sliding block (601) on one side close to the rotating joint (702).

3. The ring vertical knife special-shaped polyurethane latex sponge cutting machine according to claim 1 is characterized by: A plurality of fixing grooves (801) are equidistantly provided at the bottom end of the side wall of the supporting groove (304), and a fixing mechanism for use with the fixing grooves (801) is provided in the sliding block (601), the fixing mechanism comprising: A supporting spring block (803) is movably disposed at the bottom end of the slide groove (605); The electromagnetic strip (802) has one end fixedly connected to the two ends of the supporting spring block (803), and the other end penetrates the side wall of the slider (601) and extends into the fixing groove (801).

4. The ring vertical knife special-shaped polyurethane latex sponge cutting machine according to claim 3 is characterized by: The electromagnetic strips (802) are electrically connected to a control system via a slip ring (609); when the two electromagnetic strips (802) are energized, a magnetic force that attracts each other is generated.

5. The ring vertical knife special-shaped polyurethane latex sponge cutting machine according to claim 4 is characterized by: A touch switch (9) is fixedly installed in the fixed groove (801) farthest from the rotary joint (702), one end of the touch switch (9) extends into the support groove (304), and the touch switch (9) is electrically connected to the control system via a slip ring (609).

6. The ring vertical knife special-shaped polyurethane latex sponge cutting machine according to claim 4 is characterized by: An electromagnetic block (10) is embedded in the side wall of the support groove (304) away from the rotary joint (702); the slider (601) is an electromagnetic block; the electromagnetic block (10) and the slider (601) are electrically connected to a control system via a slip ring (609); when power is supplied, the electromagnetic block (10) and the slider (601) generate a mutually repelling magnetic force.

7. The vertical ring blade special-shaped polyurethane latex sponge cutting machine according to claim 1, characterized in that: A driving knife belt wheel (303) between two adjacent support grooves (304) is fixedly mounted with a transmission tooth (305); knife belt grooves (401) are equidistantly formed on the annular knife belt (4); and the transmission tooth (305) is movably inserted into the knife belt grooves (401) of the annular knife belt (4).

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