Automatic cutting type double-screw extruder for TPE particle production

Abstract

The invention discloses an automatic material cutting type double-screw extruder for TPE particle production, and relates to the technical field of double-screw extruders. The device comprises a machining table, an extruder body is arranged at the top of the machining table, an extrusion head is fixed to the discharging end of the extruder body, a discharging shell is fixed to the outer portion of the extrusion head, an air cooler is fixed to the top of the discharging shell, and a cutting device is arranged in the discharging shell. And the cutting device comprises a rotating shaft which is transversely and rotationally installed in the discharging shell, the rotating shaft is driven by a motor, a disc is fixed to the outer portion of the rotating shaft, and sliding rods are evenly and transversely installed on the circumference of the outer wall of the disc in a penetrating and sliding mode. Through the arrangement of the anti-adhesion device, the convex ball rod, the disc and the hinge rod are matched to drive the L-shaped shovel plate to shovel off TPE particles adhered to the surface of the cutter, so that the problem that the TPE particles are adhered to the surface of the cutter to affect the cutting effect of the cutter is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of twin-screw extruders, in particular to an automatic cutting type twin-screw extruder for producing TPE particles. Background Art

[0002] The twin-screw extruder for TPE pellet production is a highly efficient plastics processing equipment primarily used for extruding thermoplastic elastomers (TPE). Its twin-screw design ensures uniform mixing, plasticization, and melting of materials during the extrusion process, making it suitable for processing a variety of TPE formulations. The equipment features an excellent temperature control system and a high-precision control system, improving production efficiency and ensuring consistent product quality.

[0003] A Chinese patent with patent announcement number CN215661765U discloses a twin-screw extruder for producing plastic particles, including a self-heating barrel, a screw assembly installed inside the barrel, a feed box installed at one end of the barrel, and a discharge port provided at the other end. An extrusion plate is installed at the bottom of the discharge port, and a cutting plate is slidingly provided at the bottom of the extrusion plate. A slidable smearing assembly is installed at the bottom of the cutting plate, and the smearing assembly includes two symmetrically distributed smearing plates. This patent installs a slidable smearing assembly at the bottom of the cutting plate, and makes the smearing assembly slide along the bottom of the cutting plate after each cutting, and the overall state is reciprocating sliding, so that the cut plastic particles will not adhere to the cutting plate when they fall, thereby not clogging the through-holes, ensuring the normal falling of subsequent particles, and thus ensuring the production progress of plastic particles.

[0004] However, the current twin-screw extruder has the following problems: in the process of cutting the extruded TPE into pellets, the TPE material has strong adhesion at high temperatures, especially when the temperature is too high, TPE will become softer and more sticky. Therefore, the TPE cut into pellets easily adheres to the surface of the cutter. TPE pellets adhering to the cutter surface will affect the cutting effect, resulting in uneven pellet cutting, even incomplete cutting or pellet accumulation, which in turn affects the continuity and efficiency of production. Therefore, we propose an automatic cutting twin-screw extruder for TPE pellet production. Summary of the Invention

[0005] The present invention provides an automatic cutting type twin-screw extruder for producing TPE particles, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic cutting twin-screw extruder for TPE particle production, comprising a processing table, an extruder main body is provided on the top of the processing table, an extrusion head is fixed to the discharge end of the extruder main body, a discharge shell is fixed to the outside of the extrusion head, a cooling fan is fixed to the top of the discharge shell, a cutting device is provided inside the discharge shell, the cutting device comprises a rotating shaft which is installed in the discharge shell for transverse rotation, the rotating shaft is driven by a motor, a disc is fixed on the outside of the rotating shaft, the outer wall of the disc is uniformly penetrated transversely and a sliding rod is slidably installed, a cutter is fixed on the side of the sliding rod close to the extrusion head, and a spring is provided between the cutter and the disc, the cutter contacts the outer wall of the discharge end of the extrusion head, an arc block disc is fixed to the inside of the discharge shell through a bracket, the outer wall of the disc is uniformly penetrated transversely and a convex ball rod is slidably installed The cam is fixed to the outer wall of the cutter blade, and the cam is fixed to the outer wall of the cutter blade, and the cam is fixed to the outer wall of the cutter blade.

[0007] According to the above technical solution, the outer wall of the cutter is fixed with a liquid storage shell, the outer wall of the liquid storage shell is provided with a liquid injection tube, the interior of the liquid storage shell is fixed with an adsorption cotton 1, the adsorption cotton 1 is adsorbed with a nano anti-stick coating agent, the adsorption cotton 1 is fixed with a pressure plate on the side away from the cutter, and the pressure plate is slidably installed inside the liquid storage shell, the side wall of the liquid storage shell is fixed with a number of connecting tubes, the side of the connecting tubes away from the liquid storage shell is fixed with a accommodating shell, and the accommodating shell is embedded in the outer wall of the cutter, the interior of the accommodating shell is fixed with adsorption cotton 2, the outer wall of the L-shaped shovel plate is fixed with a Z-shaped rod, and the cross rod of the Z-shaped rod is close to the liquid storage shell One side is semi-arc-shaped, and a semicircular bar is fixed on the side of the pressure plate away from the cutter. The semicircular bar of the pressure plate is located on the semi-arc motion trajectory of the Z-shaped rod. At the same time, each time the L-shaped shovel plate moves, the L-shaped shovel plate will drive the Z-shaped rod to move with it. When the semi-arc shape of the Z-shaped rod moves to the semi-arc bar position of the pressure plate, the semi-arc shape of the Z-shaped rod pushes the semi-arc bar of the pressure plate to drive the pressure plate to squeeze the adsorption cotton 1, and the nano anti-sticking coating agent adsorbed by the adsorption cotton 1 is squeezed out, and the nano anti-sticking coating agent is transmitted to the containing shell through the connecting tube and adsorbed by the adsorption cotton 2. The nano anti-sticking coating agent adsorbed by the adsorption cotton 2 will moisten the contact surface between the L-shaped shovel plate and the cutter.

[0008] According to the above technical solution, a sorting device is provided at the lower interior of the discharge shell, and the sorting device includes an elliptical groove plate and a circular slide. The elliptical groove plate is fixed at the outer wall of the rotating shaft, and an elliptical groove is provided at the outer wall of the elliptical groove plate. The circular slide is slidably installed at the lower inner wall of the discharge shell, and a plurality of blocking columns are evenly and equidistantly fixed at the inner wall of the circular slide. An L-shaped column is fixed at the top of the circular slide, and the top of the L-shaped column is slidably installed inside the elliptical groove of the elliptical groove plate. The tops of the plurality of blocking columns are all arranged with arc surfaces, which will also drive the elliptical groove plate to rotate during the rotation of the rotating shaft. The elliptical groove of the elliptical groove plate will push the L-shaped column to drive the circular slide to move back and forth up and down, and the circular slide drives the mesh formed by the plurality of blocking columns to move back and forth up and down, and the mesh formed by the plurality of blocking columns will screen the TPE particles falling thereon.

[0009] According to the above technical solution, the sorting device also includes a triangular plate, which is fixed to the middle of the inner wall of the discharge shell. A U-shaped pressure block is fixed to the bottom of the triangular plate. The TPE particles cut by the cutter will fall to the triangular plate. Then, the TPE particles will fall along the inclined surface of the triangular plate onto the mesh formed by several retaining columns. The triangular plate increases the falling displacement stroke of the TPE particles inside the discharge shell.

[0010] According to the above technical solution, a number of inclined plates are evenly and equidistantly fixed on both sides of the bottom of the U-shaped pressure block, and the several inclined plates are respectively located between two adjacent blocking columns. Each time the L-shaped column pulls the circular slide to move upward, the agglomerated TPE particles will be guided by the arc surface of the blocking column to the bottom of the U-shaped pressure block. When the L-shaped column pulls the circular slide to move upward, the circular slide drives the agglomerated TPE particles toward the U-shaped pressure block through the several blocking columns, and the U-shaped pressure block and the inclined plates squeeze the agglomerated TPE particles on the several blocking columns.

[0011] The U-shaped slide is slidably installed on both sides of the top of the circular slide, and the U-shaped slide is hingedly connected to the bottom of the triangle plate by a push rod. A number of push columns are evenly and equidistantly fixed on the bottom of the U-shaped slide, and the push columns are respectively located between two adjacent stop columns. Each time the L-shaped column pushes the circular slide to move downward, the circular slide drives the U-shaped slide to move downward. During this process, the push rod pulls the U-shaped slide to move along the top of the circular slide toward the center of the circular slide, and the U-shaped slide drives the push columns to move accordingly, so that the push columns push the TPE particles accumulated on both sides of the stop columns to the center of the stop columns.

[0012] The present invention provides an automatic cutting twin-screw extruder for producing TPE particles. It has the following beneficial effects: (1) The present invention sets an anti-adhesion device so that the convex ball rod, the disc and the hinged rod cooperate to drive the L-shaped shovel plate to shovel off the TPE particles adhering to the surface of the cutter, thereby avoiding the problem that the TPE particles adhere to the surface of the cutter and affect the cutting effect of the cutter; each time the L-shaped shovel plate moves, the L-shaped shovel plate, the Z-shaped rod and the pressure plate cooperate to drive the nano anti-adhesion coating agent adsorbed by the adsorption cotton 1 to be transmitted to the containing shell through the connecting pipe and adsorbed by the adsorption cotton 2. The nano anti-adhesion coating agent adsorbed by the adsorption cotton 2 will wet the contact surface between the L-shaped shovel plate moved to the position of the adsorption cotton 2 and the cutter, so that the L-shaped shovel plate will apply the nano anti-adhesion coating agent to the surface of the cutter during the next movement. The nano anti-adhesion coating agent forms a thin and uniform protective film on the surface of the cutter, reducing the direct contact between the TPE particles and the cutter surface. This film has a low friction coefficient, thereby effectively preventing the TPE particles from adhering to the cutter surface.

[0013] (2) The present invention sets a sorting device so that the triangular plate increases the falling displacement stroke of the TPE particles inside the discharge shell, which enables the air cooler to cool the TPE particles for a longer time, which helps to better reduce the temperature of the TPE particles and prevent the TPE particles from becoming too soft or adhering to each other due to high temperature; at the same time, the rotating shaft, elliptical groove plate, L-shaped column rod, circular slide, and baffle column cooperate to screen the TPE particles falling on the baffle column, and the TPE particles that are clumped and adhered together will be intercepted on the mesh surface formed by several baffle columns, thereby ensuring that the screened TPE particles meet the quality standards; at the same time, the baffle column, L-shaped column rod, circular slide, and U-shaped pressure block cooperate to squeeze the TPE particles clumped on several baffle columns, and the clumped TPE particles will be subjected to pressure, thereby causing the clumped TPE particles to disperse from the agglomerated state. The squeezing effect helps to break the adhesion between the TPE particles and improve the dispersion and uniformity of the TPE particles.

[0014] (3) The present invention arranges a circular slide, a U-shaped slide, and a push rod. Each time the L-shaped column pushes the circular slide downward, the push rod pulls the U-shaped slide to drive the push rod to push the TPE particles accumulated on both sides of the barrier column toward the center of the barrier column. The push rod can make the TPE particles more evenly distributed on the mesh surface formed by the plurality of barrier columns, thereby improving the efficiency of the mesh surface formed by the plurality of barrier columns in screening TPE particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the present invention as a whole Figure 1 ; Figure 2 This is a schematic diagram of the present invention as a whole Figure 2 ; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 is a schematic diagram of the anti-adhesion device of the present invention; Figure 5 Schematic diagram of the local structure of the anti-adhesion device of the present invention Figure 1 ; Figure 6 Schematic diagram of the local structure of the anti-adhesion device of the present invention Figure 2 ; Figure 7 Schematic diagram of the local structure of the anti-adhesion device of the present invention Figure 3 ; Figure 8 is a schematic diagram of a sorting device of the present invention; Figure 9 Schematic diagram of the partial structure of the sorting device of the present invention Figure 1 ; Figure 10 Schematic diagram of the partial structure of the sorting device of the present invention Figure 2 ; Figure 11 A schematic diagram of the circular slide of the present invention; Figure 12 It is a schematic diagram of the set square of the present invention.

[0016] In the figure: 1. processing table; 2. extruder body; 3. extrusion head; 4. discharge shell; 5. air cooler; 6. cutting device; 61. rotating shaft; 62. disc; 63. slide rod; 64. cutter; 65. arc block disk; 66. convex ball rod; 67. hinged rod; 68. L-shaped shovel plate; 69. liquid storage shell; 610. pressure plate; 611. connecting pipe; 612. containing shell; 613. adsorption cotton 1; 614. adsorption cotton 2; 615. Z-shaped rod; 7. sorting device; 71. elliptical groove plate; 72. L-shaped column; 73. circular slide; 74. blocking column; 75. triangle plate; 76. U-shaped slide; 77. push column; 78. push rod; 79. U-shaped pressure block; 710. inclined plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] See also Figure 1 - Figure 12, one embodiment of the present invention is: an automatic cutting twin-screw extruder for TPE particle production, comprising a processing table 1, an extruder body 2 is provided on the top of the processing table 1, an extruder head 3 is fixed to the discharge end of the extruder body 2, a discharge shell 4 is fixed to the outside of the extruder head 3, a cooling fan 5 is fixed to the top of the discharge shell 4, a cutting device 6 is provided inside the discharge shell 4, the cutting device 6 comprises a rotating shaft 61 which is installed in the discharge shell 4 for transverse rotation, the rotating shaft 61 is driven by a motor, a disc 62 is fixed to the outside of the rotating shaft 61, the outer wall circumference of the disc 62 is uniformly penetrated transversely and a slide rod 63 is slidably installed, a cutter 64 is fixed on the side of the slide rod 63 close to the extruder head 3, and a spring is provided between the cutter 64 and the disc 62, the cutter 64 contacts the outer wall of the discharge end of the extruder head 3, and the discharge shell 4 is fixedly installed with an arc block disk 65 through a bracket, and the outer wall circumference of the disc 62 is uniformly penetrated laterally and slidably installed with a convex ball rod 66, and a spring is provided between the convex ball rod 66 and the disc 62, and the convex ball rod 66 is hingedly connected to the side of the extrusion head 3 with a hinged rod 67, and the hinged rod 67 is hingedly connected to the side of the convex ball rod 66 away from the convex ball rod 66, and the L-shaped shovel plate 68 is slidably installed on the outer wall of the cutter 64, and an arc block is fixed to the top of the side of the arc block disk 65 close to the extrusion head 3, and the side of the convex ball rod 66 away from the extrusion head 3 is semicircular. The arc block of the arc block disk 65 is located on the semicircular motion trajectory of the convex ball rod 66, and a through opening is provided in the middle of the arc block disk 65. The rotating shaft 61 passes through the through opening of the arc block disk 65, and the discharge end of the extrusion head 3 and the corresponding part of the arc block of the arc block disk 65 are not provided with a discharge hole (such as Figure 3 As shown in the figure, by setting the above structure, the arc block of the arc block disk 65 pushes the semicircular convex rod 66 to drive the convex rod 66 toward the cutter 64, and the convex rod 66 pushes the hinged rod 67 to drive the L-shaped shovel plate 68 to move on the outer wall of the cutter 64, so that the L-shaped shovel plate 68 will shovel off the TPE particles adhering to the surface of the cutter 64, thereby avoiding the problem of TPE particles adhering to the surface of the cutter 64 and affecting the cutting effect of the cutter 64.

[0019] The outer wall of the cutter 64 is fixed with a liquid storage shell 69, and a liquid injection tube is provided on the outer wall of the liquid storage shell 69. An adsorption cotton 613 is fixed inside the liquid storage shell 69, and a nano anti-stick coating agent is adsorbed in the adsorption cotton 613. A pressure plate 610 is fixed on the side of the adsorption cotton 613 away from the cutter 64, and the pressure plate 610 is slidably installed inside the liquid storage shell 69. A plurality of connecting tubes 611 are fixed on the side of the liquid storage shell 69 away from the liquid storage shell 69. A accommodating shell 612 is fixed on the side of the plurality of connecting tubes 611 away from the liquid storage shell 69, and the accommodating shell 612 is embedded in the outer wall of the cutter 64. An adsorption cotton 2 614 is fixed inside the accommodating shell 612. The outer wall of the L-shaped shovel plate 68 is fixed with a plurality of connecting tubes 611. A Z-shaped rod 615 is fixed, and the side of the Z-shaped rod 615 near the liquid storage shell 69 is semi-arc-shaped. A semicircular bar is fixed on the side of the pressure plate 610 away from the cutter 64. The semicircular bar of the pressure plate 610 is located on the semi-arc-shaped movement trajectory of the Z-shaped rod 615. Through the setting of the above structure, the L-shaped shovel plate 68 will apply the nano anti-stick coating agent to the surface of the cutter 64 during the movement. The nano anti-stick coating agent forms a thin and uniform protective film on the surface of the cutter 64, reducing the direct contact between the TPE particles and the surface of the cutter 64. This film has a low friction coefficient, thereby effectively preventing the TPE particles from adhering to the surface of the cutter 64.

[0020] During use, when the extruder body 2 extrude the TPE material from the extrusion head 3, the staff drives the rotating shaft 61 to rotate through the motor and starts the cooling fan 5. The rotating shaft 61 drives the disc 62 to rotate, and the disc 62 drives the cutter 64 to rotate through the slide bar 63. The cutter 64 cuts the TPE material extruded from the extrusion head 3 during the rotation process, and the cooling fan 5 cools the cut TPE particles, thereby realizing the pelletizing operation of the TPE material. At the same time, the convex ball rod 66 also rotates with the disc 62. When the semicircular shape of the convex ball rod 66 rotates to the arc block disc When the arc block 65 is in the arc block position (i.e. the cutter 64 moves to the position where the discharge hole is not set in the extrusion head 3), the arc block of the arc block plate 65 pushes the semicircular shape of the convex ball rod 66 to drive the convex ball rod 66 toward the direction of the cutter 64, and the convex ball rod 66 pushes the hinge rod 67 to drive the L-shaped shovel plate 68 to move on the outer wall of the cutter 64, so that the L-shaped shovel plate 68 will shovel off the TPE particles adhering to the surface of the cutter 64, thereby avoiding the problem that the TPE particles adhere to the surface of the cutter 64 and affect the cutting effect of the cutter 64. When the arc block of the arc block plate 65 does not push the semicircular shape of the convex ball rod 66, the convex ball rod 66 The rod 66 will be reset under the action of the corresponding spring force, and the convex ball rod 66 drives the L-shaped shovel plate 68 to reset through the hinge rod 67; at the same time, each time the L-shaped shovel plate 68 moves, the L-shaped shovel plate 68 will drive the Z-shaped rod 615 to move accordingly. When the semi-arc shape of the Z-shaped rod 615 moves to the semi-circular position of the pressure plate 610, the semi-arc shape of the Z-shaped rod 615 pushes the semi-circular position of the pressure plate 610 to drive the pressure plate 610 to squeeze the adsorption cotton 613, and the nano anti-sticking coating agent adsorbed by the adsorption cotton 613 is squeezed out, and the nano anti-sticking coating agent is transmitted to the containing shell through the connecting tube 611 The adsorbent 612 is adsorbed by the adsorbent cotton 2 614, and the nano anti-stick coating agent adsorbed by the adsorbent cotton 2 614 will moisten the contact surface between the L-shaped shovel 68 moved to the position of the adsorbent cotton 2 614 and the cutter 64, so that the L-shaped shovel 68 will apply the nano anti-stick coating agent to the surface of the cutter 64 during the next movement. The nano anti-stick coating agent forms a thin and uniform protective film on the surface of the cutter 64, reducing the direct contact between the TPE particles and the surface of the cutter 64. This film has a low friction coefficient, thereby effectively preventing the TPE particles from adhering to the surface of the cutter 64.

[0021] See also Figure 1 - Figure 12On the basis of the above embodiment, in another embodiment of the present invention, a sorting device 7 is provided at the lower part of the discharge shell 4. The sorting device 7 includes an elliptical groove plate 71 and a circular slide 73. The elliptical groove plate 71 is fixed to the outer wall of the rotating shaft 61. An elliptical groove is provided on the outer wall of the elliptical groove plate 71. The circular slide 73 is slidably installed on the lower inner wall of the discharge shell 4. A plurality of blocking columns 74 are evenly and equidistantly fixed on the inner wall of the circular slide 73. An L-shaped column 72 is fixed on the top of the circular slide 73. The top of the L-shaped column 72 is slidably installed. The tops of the plurality of retaining posts 74 installed inside the elliptical groove of the elliptical groove plate 71 are all provided with curved surfaces. Through the arrangement of the above-mentioned structure, the mesh surface formed by the plurality of retaining posts 74 will screen the TPE particles falling thereon, and the TPE particles that are clumped and adhered together will be intercepted on the mesh surface formed by the plurality of retaining posts 74, thereby ensuring that the screened TPE particles meet the quality standards. At the same time, due to the arrangement of the curved surfaces on the tops of the retaining posts 74, the TPE particles that are clumped and adhered together will be guided by the curved surfaces of the retaining posts 74 to the middle position of the retaining posts 74.

[0022] The sorting device 7 also includes a triangular plate 75, which is fixed to the middle of the inner wall of the discharge shell 4. A U-shaped pressure block 79 is fixed to the bottom of the triangular plate 75. Through the arrangement of the above structure, the triangular plate 75 increases the falling displacement stroke of the TPE particles inside the discharge shell 4, so that the air cooler 5 can cool the TPE particles for a longer time, which helps to better reduce the temperature of the TPE particles and prevent the TPE particles from becoming too soft or sticking together due to high temperature.

[0023] Several inclined plates 710 are evenly and equidistantly fixed on both sides of the bottom of the U-shaped pressure block 79, and the several inclined plates 710 are respectively located between two adjacent blocking columns 74. Every time the L-shaped column rod 72 pulls the circular slide 73 to move upward, the above-mentioned structure is set up, so that the U-shaped pressure block 79 and the inclined plates 710 squeeze the TPE particles agglomerated on the several blocking columns 74. The agglomerated TPE particles will be subjected to pressure, thereby causing the agglomerated TPE particles to disperse from the agglomerated state. The squeezing effect helps to break the adhesion between the TPE particles and improve the dispersion and uniformity of the TPE particles.

[0024] U-shaped slides 76 are slidably installed on both sides of the top of the circular slide 73. The U-shaped slide 76 is hingedly connected to the bottom of the triangular plate 75 by a push rod 78. Several push columns 77 are evenly and equidistantly fixed at the bottom of the U-shaped slide 76. Several push columns 77 are respectively located between two adjacent blocking columns 74. Every time the L-shaped column 72 pushes the circular slide 73 to move downward, the above-mentioned structure is set up so that the push columns 77 push the TPE particles accumulated on both sides of the blocking columns 74 to the center position of the blocking columns 74. The push columns 77 can make the TPE particles more evenly distributed on the mesh surface formed by the several blocking columns 74, thereby improving the efficiency of the mesh surface formed by the several blocking columns 74 in screening TPE particles.

[0025] During use, the TPE particles cut by the cutter 64 will fall to the triangular plate 75, and then the TPE particles will fall along the inclined surface of the triangular plate 75 onto the mesh surface formed by the plurality of blocking columns 74. The triangular plate 75 increases the falling displacement stroke of the TPE particles inside the discharge shell 4, which enables the air cooler 5 to cool the TPE particles for a longer time, which helps to better reduce the temperature of the TPE particles and prevent the TPE particles from becoming too soft or sticking together due to high temperature. During the rotation of the rotating shaft 61, the elliptical groove plate 71 will also be driven to rotate, and the elliptical groove of the elliptical groove plate 71 will push the L-shaped column The rod 72 drives the circular slide 73 to move up and down, and the circular slide 73 drives the mesh formed by the plurality of retaining columns 74 to move up and down. The mesh formed by the plurality of retaining columns 74 will screen the TPE particles falling thereon, and the TPE particles that are clumped and adhered together will be intercepted on the mesh formed by the plurality of retaining columns 74, thereby ensuring that the screened TPE particles meet the quality standards; at the same time, due to the setting of the top curved surface of the retaining column 74, the TPE particles that are clumped and adhered together will be guided to the middle position of the retaining column 74 by the curved surface of the retaining column 74. When the L-shaped column 72 pulls the return slide 73 to move upward, the return slide 73 drives the agglomerated TPE particles toward the U-shaped pressure block 79 through the plurality of stop columns 74. The U-shaped pressure block 79 and the inclined plate 710 squeeze the agglomerated TPE particles on the plurality of stop columns 74. The agglomerated TPE particles are subjected to pressure, thereby causing the agglomerated TPE particles to disperse from the agglomerated state. The squeezing effect helps to break the adhesion between the TPE particles and improve the dispersion and uniformity of the TPE particles. When the column 72 pushes the circular slide 73 to move downward, the circular slide 73 drives the U-shaped slide 76 to move downward. During this process, the push rod 78 pulls the U-shaped slide 76 along the top of the circular slide 73 to move toward the center of the circular slide 73, and the U-shaped slide 76 drives the push column 77 to move accordingly, so that the push column 77 pushes the TPE particles accumulated on both sides of the blocking column 74 to the center of the blocking column 74. The push column 77 can make the TPE particles more evenly distributed on the mesh surface formed by the several blocking columns 74, thereby improving the efficiency of the mesh surface formed by the several blocking columns 74 in screening TPE particles.

[0026] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An automatic cutting twin-screw extruder for producing TPE granules, comprising a processing table (1), an extruder body (2) being arranged on the top of the processing table (1), an extruder head (3) being fixed to the discharge end of the extruder body (2), and characterized in that: A discharge shell (4) is fixed to the outside of the extrusion head (3), a cooling fan (5) is fixed to the top of the discharge shell (4), a cutting device (6) is provided inside the discharge shell (4), and the cutting device (6) comprises a rotating shaft (61) installed in a transverse rotation inside the discharge shell (4), the rotating shaft (61) is driven by a motor, a disc (62) is fixed to the outside of the rotating shaft (61), the outer wall circumference of the disc (62) is uniformly penetrated transversely and a slide rod (63) is slidably installed, and a cutter (64) is fixed to the side of the slide rod (63) close to the extrusion head (3) , and a spring is provided between the cutter (64) and the disc (62), an arc block disc (65) is fixedly installed inside the discharge shell (4) through a bracket, a convex ball rod (66) is uniformly and horizontally penetrated through the outer circumference of the disc (62) and is slidably installed, and a spring is provided between the convex ball rod (66) and the disc (62), a hinged rod (67) is hinged on the side of the convex ball rod (66) close to the extrusion head (3), an L-shaped shovel plate (68) is hinged on the side of the hinged rod (67) away from the convex ball rod (66), and the L-shaped shovel plate (68) is slidably installed on the outer wall of the cutter (64).

2. The automatic cutting twin-screw extruder for producing TPE particles according to claim 1, characterized in that: An arc block is fixed on the top of the arc block disk (65) on the side close to the extrusion head (3), and the side of the convex ball rod (66) away from the extrusion head (3) is arranged in a semicircular shape, and the arc block of the arc block disk (65) is located on the semicircular motion trajectory of the convex ball rod (66).

3. The automatic cutting twin-screw extruder for producing TPE particles according to claim 1, characterized in that: A through opening is provided in the middle of the arc block disk (65), the rotating shaft (61) passes through the through opening of the arc block disk (65), the cutter (64) contacts the outer wall of the discharge end of the extrusion head (3), and no discharge hole is provided between the discharge end of the extrusion head (3) and the corresponding portion of the arc block of the arc block disk (65).

4. The automatic cutting twin-screw extruder for producing TPE particles according to claim 1, characterized in that: A liquid storage shell (69) is fixed to the outer wall of the cutter (64), and a liquid injection tube is provided on the outer wall of the liquid storage shell (69). An adsorption cotton (613) is fixed inside the liquid storage shell (69), and a nano anti-sticking coating agent is adsorbed inside the adsorption cotton (613). A pressure plate (610) is fixed on the side of the adsorption cotton (613) away from the cutter (64), and the pressure plate (610) is slidably installed inside the liquid storage shell (69). Several connecting tubes (611) are fixed to the side of the liquid storage shell (69), and a accommodating shell (612) is fixed on the side of the several connecting tubes (611) away from the liquid storage shell (69), and the accommodating shell (612) is embedded in the outer wall of the cutter (64). Adsorption cotton (614) is fixed inside the accommodating shell (612), and a Z-shaped rod (615) is fixed on the outer wall of the L-shaped shovel plate (68).

5. The automatic cutting twin-screw extruder for producing TPE particles according to claim 4, characterized in that: The side of the horizontal support rod of the Z-shaped rod (615) close to the liquid storage shell (69) is arranged in a semi-arc shape, and a semi-circular bar is fixed to the side of the pressure plate (610) away from the cutter (64), and the semi-circular bar of the pressure plate (610) is located on the semi-arc motion trajectory of the Z-shaped rod (615).

6. The automatic cutting twin-screw extruder for producing TPE particles according to claim 1, characterized in that: A sorting device (7) is provided at the lower part of the discharge shell (4), and the sorting device (7) comprises an elliptical groove plate (71) and a circular slide (73). The elliptical groove plate (71) is fixed to the outer wall of the rotating shaft (61), and an elliptical groove is provided on the outer wall of the elliptical groove plate (71). The circular slide (73) is slidably mounted on the lower inner wall of the discharge shell (4). A plurality of retaining columns (74) are evenly and equidistantly fixed on the inner wall of the circular slide (73). An L-shaped column (72) is fixed to the top of the circular slide (73), and the top end of the L-shaped column (72) is slidably mounted inside the elliptical groove of the elliptical groove plate (71).

7. The automatic cutting twin-screw extruder for producing TPE particles according to claim 6, characterized in that: The tops of the plurality of blocking columns (74) are all arranged in a curved surface.

8. The automatic cutting twin-screw extruder for producing TPE particles according to claim 6, characterized in that: The sorting device (7) further comprises a triangular plate (75), wherein the triangular plate (75) is fixed to the middle portion of the inner wall of the discharge shell (4), and a U-shaped pressing block (79) is fixed to the bottom of the triangular plate (75).

9. The automatic cutting twin-screw extruder for producing TPE particles according to claim 8, characterized in that: A plurality of inclined plates (710) are evenly and equidistantly fixed on both sides of the bottom of the U-shaped pressing block (79), and the plurality of inclined plates (710) are respectively located between two adjacent blocking columns (74).

10. The automatic cutting twin-screw extruder for producing TPE particles according to claim 8, characterized in that: U-shaped slides (76) are slidably mounted on both sides of the top of the circular slide (73), and the U-shaped slide (76) is hingedly connected to the bottom of the triangular plate (75) through a push rod (78). A plurality of push columns (77) are evenly and equidistantly fixed to the bottom of the U-shaped slide (76), and the plurality of push columns (77) are respectively located between two adjacent blocking columns (74).

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