Cooling structure of PVC particle extruder

Abstract

The invention discloses a cooling structure of a PVC particle extruder. The plastic extruder comprises a shell, a connecting piece is arranged on one side of the shell, an extruder body is arranged at the top of the shell and the top of the connecting piece, a fixing structure is arranged on the outer surface, close to a discharging position, of the extruder body, and a sliding plate is arranged at the bottom end in the connecting piece in a sliding mode; an electric heating plate, a condenser pipe and a temperature sensor are arranged on the outer surface of the extruder body; and the mouth mold conversion structure is arranged in the connecting piece through a sliding plate, a plurality of cutting pieces are arranged in the mouth mold conversion structure, and mouth molds of multiple sizes are arranged through the cutting pieces. According to the extrusion machine, the mouth die conversion structure is arranged, when mouth dies of different sizes are replaced, a user can drive the mouth die conversion structure to slide in the connecting piece through the first servo motor, then the mouth die conversion structure is driven to rotate through the second servo motor, and therefore the mouth die for the extrusion machine is changed, and the mouth die is convenient to disassemble and assemble.

Description

Technical Field

[0001] The invention relates to the technical field of extrusion equipment, in particular to a cooling structure of a PVC particle extruder. Background Art

[0002] In plastic extrusion molding equipment, the plastic extruder is usually called the main machine, and the subsequent equipment plastic extrusion molding machine that matches it is called the auxiliary machine. In the process of producing PVC particles with the existing PVC particle extruder, the user needs to set a cooling line pipe on the surface of the PVC particle extruder near the discharge port or extend the length of the upper shell of the PVC particle extruder so that the liquid PVC particles can be cooled and solidified. If the existing PVC particle extruder is cooled by the cooling line pipe, the coverage area of ​​the cooling line pipe is small, and the cooling effect on the liquid PVC particles is poor. If the length of the PVC particle extruder is extended, the manufacturing cost of the PVC particle extruder will increase and the floor space of the PVC particle extruder will increase; and in order to produce PVC particles of different sizes, the user needs to frequently change the die, and the disassembly and assembly process is very inconvenient. Summary of the invention

[0003] The object of the present invention is to provide a cooling structure for a PVC particle extruder to solve the problems mentioned in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a cooling structure for a PVC particle extruder, comprising: A shell, a connecting piece is arranged on one side of the shell, an extruder body is arranged on the top of the shell and the connecting piece, and a fixed structure is arranged on the outer surface of the extruder body near the discharge, and a slide plate is slidably arranged at the bottom end of the connecting piece; An extruder body, wherein an electric heating plate, a condenser tube and a temperature sensor are arranged on the outer surface of the extruder body; A die conversion structure is provided inside the connecting member through a slide plate, a plurality of cutting pieces are provided inside the die conversion structure, and dies of a plurality of sizes are provided through the cutting pieces.

[0005] By adopting the above technical scheme, during the process of melting the PVC raw material by the extruder body, the heating temperatures of the multiple electric heating plates are lowered in turn to avoid the melted PVC raw material from having too high a temperature when cooling, and the coverage area of ​​the multiple condensers is large, so that the multiple condensers can quickly cool down the PVC raw material, and the user can detect the temperature of the electric heating plate and the condenser in real time through the temperature sensor, so that the user can quickly adjust the temperature of the electric heating plate and the condenser. If the user needs to quickly replace the die, the user can quickly replace different dies through the die conversion structure, and a cutting piece is provided on the die conversion structure, which can be rotated to cut into PVC particles, and the user can adjust the rotation speed of the cutting piece to make the size of the PVC particles uniform.

[0006] Preferably, a first movable door panel is rotatably mounted on one end of the shell, a control panel is mounted on one end of the first movable door panel, an electrical box is mounted inside the shell, a second movable door panel is rotatably mounted on the bottom of one end of the connecting member, a baffle is provided at the middle position of the top end of the connecting member, a pressure sensor is provided on the connecting member through the baffle, and a hydraulic cylinder is provided at the middle position of the top on the other side of the connecting member.

[0007] By adopting the above technical solution, the die conversion structure slides inside the connecting piece, and the pressure sensor on the connecting piece is electrically connected to the first servo motor. When the die conversion structure contacts the baffle, the die conversion structure will stop moving to prevent the baffle from being damaged by the die conversion structure, while avoiding damage to the extruder body.

[0008] Preferably, a slide groove is provided on the other side of the bottom end of the connecting member, a rack is provided inside the slide groove on the connecting member, the connecting member is slidably connected to the slide plate through the slide groove, a first servo motor is provided at both ends of the top of the slide plate, a gear is provided at the output end of the first servo motor, and the gear on the first servo motor is meshed with the rack.

[0009] By adopting the above technical solution, the output end of the first servo motor rotates to drive the gear to rotate, and the gear is engaged with the rack, driving the slide plate to move in the slide groove of the connecting member, thereby driving the die conversion structure to move in the connecting member.

[0010] Preferably, a rotating member is disposed on one side of the top of the slide plate, the slide plate is rotatably connected to the die conversion structure via the rotating member, and a second servo motor is disposed on the top of the slide plate.

[0011] By adopting the above technical solution, the rotating member on the slide plate can drive the die conversion structure to move in the connecting member, and the die conversion structure can rotate on the slide plate through the rotating member.

[0012] Preferably, the extruder body includes an outer shell, a motor is arranged on the other side of the outer shell, a screw is arranged inside the outer shell and is connected to the output end of the motor, a plurality of electric heating plates are arranged in the middle position of the outer surface of the outer shell, a plurality of condensers are arranged on one side of the outer surface of the outer shell, temperature sensors are arranged on the electric heating plates and the condensers, the fixed structure on the outer shell includes an electric cylinder and a clamping plate, electric cylinders are arranged at both ends of one side of the outer surface of the outer shell, a clamping plate is arranged at the output end of the electric cylinder, and a third servo motor is arranged on one side of the bottom of the outer surface of the outer shell.

[0013] By adopting the above technical solution, the heating temperatures of multiple electric heating plates are lowered in sequence, and the condenser tubes are also lowered in sequence, so that the temperature inside the shell is lowered from left to right, and the PVC raw material is first melted at high temperature and then slowly cooled until solidified. At the same time, the electric heating plates and the condenser tubes have a larger coverage area on the shell, which has a better treatment effect on the PVC raw material.

[0014] Preferably, the die conversion structure includes a turntable, a connecting disk is arranged in the middle position inside the turntable, a plurality of cutting pieces are arranged inside the turntable with the connecting disk as the center, a die is rotatably arranged inside the cutting piece, the output end of the hydraulic cylinder is connected to the connecting disk, teeth are arranged on the other side of the inner surface of the turntable, a gear is arranged at the output end of the second servo motor, and the second servo motor is meshed with the turntable through the gear and teeth.

[0015] By adopting the above technical solution, the user starts the second servo motor to drive the turntable to rotate, so that the die on the turntable is changed, which is convenient for the user to replace the dies of different sizes. Then the user drives the cutting piece to rotate on the turntable through the rotation of the output end of the third servo motor, thereby cutting and producing PVC particles of suitable sizes.

[0016] Preferably, a gear ring is provided on the other side of the outer surface of the cutting piece, and a bevel gear is provided on the output end of the third servo motor, and the third servo motor is meshed with the cutting piece through the bevel gear and the gear ring.

[0017] By adopting the above technical solution, the output end of the third servo motor drives the bevel gear to rotate, so that the cutting piece with the gear ring rotates on the turntable.

[0018] Preferably, both ends of the top of the slide plate are provided with openings, and the size of the openings on the slide plate is matched with the size of the rack.

[0019] Preferably, the shell is sleeved with the die, one side of the top of the shell and the other side of the top and bottom of the die are provided with clamping holes, a clamping block is provided at the top of the clamping plate, and the clamping plate is clamped with the shell and the die through the clamping block and the clamping hole.

[0020] By adopting the above technical solution, the user can drive the card plate to rise and fall by extending and retracting the output end of the electric cylinder, so that the card block on the card plate can descend into the card hole, thereby connecting the die with the shell and preventing the die from detaching from the shell.

[0021] Preferably, the turntable is clamped with the connecting member through a baffle, and the turntable is overlapped with the pressure sensor.

[0022] Compared with the prior art, the present invention has the following beneficial effects: The cooling structure of the PVC particle extruder is provided with an electric heating plate, a condenser and a temperature sensor. The PVC raw material is heated and melted by the electric heating plate. The temperature of the plurality of electric heating plates is detected in real time by the temperature sensor. The temperatures of the plurality of electric heating plates are sequentially reduced, so that the melting temperature of the PVC raw material can be gradually reduced. Then, the condenser is wound around a place near the discharge port of the extruder to quickly cool the melted PVC raw material, so that the melted PVC raw material can be solidified and formed when it is discharged from the die.

[0023] The cooling structure of the PVC particle extruder is provided with a cutting piece on the die. The user drives the rotation rate of the cutting piece by controlling the rotation speed of the output end of the third servo motor, thereby changing the size of the PVC particles. Moreover, due to the rotation of the cutting piece, the size of the output PVC particles is uniform.

[0024] The cooling structure of the PVC particle extruder is provided with a die conversion structure. When replacing dies of different sizes, the user can drive the die conversion structure to slide in the connecting piece through the first servo motor, and then drive the die conversion structure to rotate through the second servo motor, thereby changing the die used for the extruder, making it easy to disassemble and assemble the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a stereogram of the present invention; Figure 2 It is a front cross-sectional view of the internal structure of the present invention; Figure 3 It is a side view of the present invention; Figure 4 This is a front view of the extruded structure of the present invention; Figure 5 A top view of the mobile structure of the present invention; Figure 6 For the present invention Figure 2 A magnified view of the structure at center; Figure 7 For the present invention Figure 2 A magnified view of the structure at B in the middle; Figure 8 For the present invention Figure 2 Enlarged view of the structure at point C in the middle.

[0026] In the figure: 1. shell; 2. first movable door panel; 3. control panel; 4. connecting piece; 40. pressure sensor; 5. second movable door panel; 6. electric box; 7. hydraulic cylinder; 8. slide plate; 9. first servo motor; 10. second servo motor; 11. rack; 12. extruder body; 120. shell; 121. motor; 122. screw; 123. electric heating plate; 124. condenser; 125. temperature sensor; 13. electric cylinder; 14. card plate; 15. third servo motor; 16. die conversion structure; 160. turntable; 161. die; 162. cutting piece; 163. connecting plate. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-8 An embodiment of the present invention is as follows: a cooling structure of a PVC particle extruder, comprising: a shell 1, a connecting piece 4 is arranged on one side of the shell 1, an extruder body 12 is arranged on the top of the shell 1 and the connecting piece 4, and a fixing structure is arranged on the outer surface of the extruder body 12 near the discharge position, and a slide plate 8 is slidably arranged at the bottom end of the connecting piece 4; an extruder body 12, an electric heating plate 123, a condenser 124 and a temperature sensor 125 are arranged on the outer surface of the extruder body 12; a die conversion structure 16, the die conversion structure 16 is arranged inside the connecting piece 4 through the slide plate 8, a plurality of cutting pieces 162 are arranged inside the die conversion structure 16, and a plurality of sizes of dies 161 are arranged through the cutting piece 162, when the extruder body 12 is melting the PVC raw material The heating temperatures of the multiple electric heating plates 123 are reduced in sequence to avoid the melted PVC raw material from being too hot when cooling, and the coverage area of ​​the multiple condensing tubes 124 is large, so that the multiple condensing tubes 124 can quickly cool the PVC raw material, and the user can detect the temperature of the electric heating plate 123 and the condensing tube 124 in real time through the temperature sensor 125, so that the user can quickly adjust the temperature of the electric heating plate 123 and the condensing tube 124. If the user needs to quickly replace the die 161, the user can quickly replace a different die 161 through the die conversion structure 16, and a cutting piece 162 is arranged on the die conversion structure 16. The cutting piece 162 can be rotated to cut into PVC particles, and the user can adjust the rotation speed of the cutting piece 162 to make the size of the PVC particles uniform.

[0029] In this embodiment, a first movable door panel 2 is rotatably installed at one end of the shell 1, a control panel 3 is installed at one end of the first movable door panel 2, an electrical box 6 is installed inside the shell 1, a second movable door panel 5 is rotatably installed at the bottom of one end of the connecting member 4, a baffle is provided at the middle position of the top inside the connecting member 4, a pressure sensor 40 is provided on the connecting member 4 through the baffle, a hydraulic cylinder 7 is provided at the middle position of the top on the other side of the connecting member 4, a die conversion structure 16 slides inside the connecting member 4, and the pressure sensor 40 on the connecting member 4 is electrically connected to the first servo motor 9, when the die conversion structure 16 contacts the baffle, the die conversion structure 16 will stop moving to prevent the baffle from being damaged by the die conversion structure 16, and at the same time, damage to the extruder body 12 can be avoided.

[0030] In this embodiment, a slide groove is provided on the other side of the bottom end of the connecting member 4, and a rack 11 is provided inside the slide groove on the connecting member 4. The connecting member 4 is slidably connected to the slide plate 8 through the slide groove. A first servo motor 9 is provided at both ends of the top of the slide plate 8. A gear is provided at the output end of the first servo motor 9. The gear on the first servo motor 9 is meshed with the rack 11. The output end of the first servo motor 9 rotates to drive the gear to rotate, and the gear is meshed with the rack 11, driving the slide plate 8 to move in the slide groove of the connecting member 4, thereby driving the die conversion structure 16 to move in the connecting member 4.

[0031] In this embodiment, a rotating part is provided on one side of the top of the skateboard 8, and the skateboard 8 is rotatably connected to the die conversion structure 16 through the rotating part. A second servo motor 10 is provided on the top of the skateboard 8. The rotating part on the skateboard 8 can drive the die conversion structure 16 to move in the connecting part 4, and the die conversion structure 16 can rotate on the skateboard 8 through the rotating part.

[0032] In this embodiment, the extruder body 12 includes a housing 120, a motor 121 is arranged on the other side of the housing 120, a screw 122 is arranged inside the housing 120 and is connected to the output end of the motor 121, a plurality of electric heating plates 123 are arranged at the middle position of the outer surface of the housing 120, a plurality of condensing tubes 124 are arranged on one side of the outer surface of the housing 120, a temperature sensor 125 is arranged on the electric heating plate 123 and the condensing tube 124, a fixed structure on the housing 120 includes an electric cylinder 13 and a card plate 14, and the outer surface of the housing 120 is provided with a plurality of electric heating plates 123 and a plurality of condensing tubes 124. Electric cylinders 13 are provided at both ends of one side of the surface, and a clamping plate 14 is provided at the output end of the electric cylinder 13. A third servo motor 15 is provided on one side of the bottom of the outer surface of the shell 120. The heating temperatures of the multiple electric heating plates 123 are reduced in sequence, and the condenser 124 is also reduced in sequence, so that the temperature inside the shell 120 is reduced from left to right in sequence, and the PVC raw material is first melted at a high temperature and then slowly cooled down until solidified. At the same time, the electric heating plate 123 and the condenser 124 have a larger coverage area on the shell 120, and the processing effect on the PVC raw material is better.

[0033] In this embodiment, the die conversion structure 16 includes a turntable 160, a connecting disk 163 is provided in the middle position inside the turntable 160, a plurality of cutting pieces 162 are provided inside the turntable 160 with the connecting disk 163 as the center, a die 161 is rotatably provided inside the cutting piece 162, the output end of the hydraulic cylinder 7 is connected to the connecting disk 163, teeth are provided on the other side of the inner surface of the turntable 160, a gear is provided at the output end of the second servo motor 10, and the second servo motor 10 is meshed with the turntable 160 through the gear and teeth. The user drives the turntable 160 to rotate by starting the second servo motor 10, so that the die 161 on the turntable 160 is changed, so that the user can replace the dies 161 of different sizes. Then the user drives the cutting piece 162 to rotate on the turntable 160 by rotating the output end of the third servo motor 15, so as to cut and produce PVC particles of suitable size.

[0034] In this embodiment, a gear ring is provided on the other side of the outer surface of the cutting piece 162, and a bevel gear is provided on the output end of the third servo motor 15. The third servo motor 15 is meshed with the cutting piece 162 through the bevel gear and the gear ring. The output end of the third servo motor 15 drives the bevel gear to rotate, so that the cutting piece 162 with the gear ring rotates on the turntable 160.

[0035] In this embodiment, both ends of the top of the slide plate 8 are provided with openings, and the size of the openings on the slide plate 8 is matched with the size of the rack 11 .

[0036] In this embodiment, the shell 120 is socketed with the die 161, and a clamping hole is provided on one side of the top of the shell 120 and the other side of the top and bottom of the die 161. A clamping block is provided at the top of the clamping plate 14. The clamping plate 14 is clamped with the shell 120 and the die 161 through the clamping block and the clamping hole. The user drives the clamping plate 14 to rise and fall by extending and retracting the output end of the electric cylinder 13, so that the clamping block on the clamping plate 14 can descend into the clamping hole, thereby connecting the die 161 to the shell 120 to prevent the die 161 from detaching from the shell 120.

[0037] In this embodiment, the rotating disk 160 is clamped with the connecting member 4 through a baffle, and the rotating disk 160 is overlapped with the pressure sensor 40 .

[0038] Embodiment 1, as Figure 1-3As shown, since the electric heating plates 123 and the condenser tubes 124 cover a large area on the outer shell 120, the temperatures on the multiple electric heating plates 123 and the condenser tubes 124 gradually decrease, and the temperature inside the outer shell 120 changes from high to low from left to right, and the PVC raw material changes from melting to solidification. The die conversion structure 16 is suitable for various types of extruders. If the extruder fails, the user can replace the extruder. Since the multiple electric heating plates 123 and the condenser tubes 124 on the extruder body 12 are divided into multiple heating areas and multiple cooling areas, the user starts the number of electric heating plates 123 and the condenser tubes 124 according to the needs, so that the extruder body 12 can adapt to different types of plastic raw materials. In addition to rotation, the conversion method of the die conversion structure 16 can also adjust different dies 161 by lifting or translation. However, the die conversion structure 16 using the lifting or translation method occupies a large area, and the center of gravity of the die conversion structure 16 is prone to offset, and the use effect is not as good as the die conversion structure 16 in this scheme.

[0039] Embodiment 2, as Figure 6-8 As shown, during the heating and cooling process of the PVC raw material, the temperature sensor 125 can detect the temperature emitted by the electric heating plate 123 and the condenser 124 in real time, and the user can inject low-temperature cooling water into the condenser 124 so that the cooling water can cool and solidify the molten PVC solution. The electric heating plate 123 and the condenser 124 have a large coverage area on the outer shell 120. The user can fill a heat conductive member between the electric heating plate 123 and the condenser 124 and the outer shell 120 to improve the heat conduction effect. The cutting structure on the cutting piece 162 can be a blade or a steel wire, and can rotate with the rotation of the cutting piece 162, so that the strip PVC that is about to solidify is cut into PVC particles. The user changes the rotation speed of the cutting piece 162 according to the adjustment of the rotation speed of the output end of the third servo motor 15, so that the size of the PVC particles can be unified.

[0040] For those skilled in the art, the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or scope of the present invention. Therefore, the embodiments of the present invention are exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

Claims

1. A cooling structure for a PVC particle extruder, characterized in that: include: A shell (1), a connecting piece (4) is provided on one side of the shell (1), an extruder body (12) is provided on the top of the shell (1) and the connecting piece (4), and a fixed structure is provided on the outer surface of the extruder body (12) near the discharge point, and a slide plate (8) is slidably provided at the bottom end of the interior of the connecting piece (4); An extruder body (12), wherein an outer surface of the extruder body (12) is provided with an electric heating plate (123), a condenser tube (124) and a temperature sensor (125); A die conversion structure (16), wherein the die conversion structure (16) is arranged inside the connecting member (4) via a slide plate (8), a plurality of cutting pieces (162) are arranged inside the die conversion structure (16), and dies (161) of a plurality of sizes are arranged via the cutting pieces (162).

2. A cooling structure for a PVC particle extruder according to claim 1, characterized in that: A first movable door panel (2) is rotatably mounted on one end of the housing (1), a control panel (3) is mounted on one end of the first movable door panel (2), an electric box (6) is mounted inside the housing (1), a second movable door panel (5) is rotatably mounted on the bottom of one end of the connecting member (4), a baffle is disposed at the middle position of the top end inside the connecting member (4), a pressure sensor (40) is disposed on the connecting member (4) through the baffle, and a hydraulic cylinder (7) is disposed at the middle position of the top end on the other side of the connecting member (4).

3. A cooling structure for a PVC particle extruder according to claim 2, characterized in that: A slide groove is provided on the other side of the bottom end of the connecting member (4), a rack (11) is provided inside the slide groove on the connecting member (4), the connecting member (4) is slidably connected to the slide plate (8) via the slide groove, a first servo motor (9) is provided at both ends of the top of the slide plate (8), a gear is provided at the output end of the first servo motor (9), and the gear on the first servo motor (9) is meshed with the rack (11).

4. A cooling structure for a PVC particle extruder according to claim 3, characterized in that: A rotating member is provided on one side of the top of the slide plate (8), the slide plate (8) is rotatably connected to the die conversion structure (16) via the rotating member, and a second servo motor (10) is provided on the top of the slide plate (8).

5. A cooling structure for a PVC particle extruder according to claim 4, characterized in that: The extruder body (12) comprises a shell (120), a motor (121) is arranged on the other side of the shell (120), a screw (122) is arranged inside the shell (120) and is connected to the output end of the motor (121), a plurality of electric heating plates (123) are arranged in the middle position of the outer surface of the shell (120), a plurality of condensing tubes (124) are arranged on one side of the outer surface of the shell (120), a temperature sensor (125) is arranged on the electric heating plates (123) and the condensing tubes (124), a fixed structure on the shell (120) comprises an electric cylinder (13) and a clamping plate (14), both ends of one side of the outer surface of the shell (120) are arranged with the electric cylinder (13), the output end of the electric cylinder (13) is arranged with the clamping plate (14), and a third servo motor (15) is arranged on one side of the bottom of the outer surface of the shell (120).

6. A cooling structure for a PVC particle extruder according to claim 5, characterized in that: The die conversion structure (16) comprises a rotating disk (160), a connecting disk (163) is arranged at a middle position inside the rotating disk (160), a plurality of cutting pieces (162) are arranged inside the rotating disk (160) with the connecting disk (163) as the center of a circle, a die (161) is rotatably arranged inside the cutting piece (162), an output end of the hydraulic cylinder (7) is connected to the connecting disk (163), teeth are arranged on the other side of the inner surface of the rotating disk (160), a gear is arranged at the output end of the second servo motor (10), and the second servo motor (10) is meshed with the rotating disk (160) via the gear and the teeth.

7. A cooling structure for a PVC particle extruder according to claim 6, characterized in that: A gear ring is provided on the other side of the outer surface of the cutting piece (162), and a bevel gear is provided at the output end of the third servo motor (15). The third servo motor (15) is meshed with the cutting piece (162) via the bevel gear and the gear ring.

8. A cooling structure for a PVC particle extruder according to claim 3, characterized in that: Both ends of the top of the slide plate (8) are provided with openings, and the size of the openings on the slide plate (8) is compatible with the size of the rack (11).

9. A cooling structure for a PVC particle extruder according to claim 6, characterized in that: The outer shell (120) is sleeved with the mouth die (161); one side of the top of the outer shell (120) and the other side of the top and bottom of the mouth die (161) are provided with a clamping hole; a clamping block is provided at the top end of the inner portion of the clamping plate (14); the clamping plate (14) is clamped with the outer shell (120) and the mouth die (161) via the clamping block and the clamping hole.

10. A cooling structure for a PVC particle extruder according to claim 6, characterized in that: The rotating disk (160) is clamped with the connecting member (4) via a baffle, and the rotating disk (160) is overlapped with the pressure sensor (40).

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