Polyether-ether-ketone pure resin bar extrusion molding device

Abstract

The utility model relates to the technical field of plastic bars, in particular to a polyetheretherketone pure resin bar extrusion molding device, which comprises a cutting device, a motor, a transmission device, a moving device and a fixing device, the motor, the transmission device and the moving device are arranged in a case, the motor and the transmission device are fixed on a moving bracket of the moving device, and the fixing device is fixed on the case. The motor is connected with the transmission device, the transmission device is fixedly connected with the cutting piece, the cutting piece partially penetrates through a cutting groove in the top of the machine box, the cutting groove is formed in the vertical direction of bar movement, and the fixing devices are arranged on the two sides of the cutting groove and used for fixing bars. According to the bar cutting device, the defects in the prior art are overcome, the cutting edge of the cutting piece is adopted to quickly slide and rub the surface of a bar to remove materials, the cutting piece moves along with the moving bracket of the moving device to gradually cut off the bar, the pressure applied to the surface of the bar when the bar is cut is reduced, excessive deformation of a notch and burr generation are avoided, and the quality of the bar is improved. The appearance quality of the polyether-ether-ketone bar is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic rods, in particular to a polyetheretherketone pure resin rod extrusion molding device. Background Art

[0002] Polyetheretherketone (PEEK) is a polymer consisting of repeating units with one ketone bond and two ether bonds in the main chain structure. It is a special polymer material. It has physical and chemical properties such as high temperature resistance and chemical corrosion resistance. It is a type of semi-crystalline polymer material with a load heat deformation temperature of up to 316°C and an instantaneous use temperature of up to 300°C. It can be used as a high-temperature resistant structural material and electrical insulation material, and can be composited with glass fiber or carbon fiber to prepare reinforcement materials. This material has a large number of applications in the fields of aerospace, medical equipment and industry. Rods generally refer to solid cylinders. Currently, the processing and production of plastic rods mostly rely on hot pressing extrusion molding, that is, the raw materials are melted at high temperature and then extruded into shape. However, the existing plastic rods need to be cut manually during the production process, that is, during the process of the extruder extruding the plastic rod, the operator needs to continuously cut the rod, and then divide the rod into multiple rods of the required length, which is very troublesome and the cutting length is difficult to control. During the production process of existing plastic rods, the processing temperature during extrusion molding is 350-370℃. Due to the material of the rod itself, the extruded rod is easily bent due to factors such as weight, thereby affecting the quality of the output rod.

[0003] Chinese patent: CN216832096U discloses a plastic rod hot pressing extrusion device, including a support table, an extruder is fixedly connected to the edge of one side of the top surface of the support table, a feed funnel is installed on the top surface of the extruder, a die is installed on one side of the extruder, a stabilizing mechanism is slidably connected to the middle of the top surface of the support table, a cutting mechanism is provided on one side of the extruder, support legs are fixedly connected to the four corners of the bottom of the support table, universal wheels are fixedly connected to the bottoms of multiple support legs, and a single-chip microcomputer controller is fixedly connected to the corners of one side of the front of the extruder. However, since the device performs a cutting operation when the plastic rod exits the extruder, the size and shape of the rod have not been cooled and stabilized at this time, and burrs are easily generated at the cut, affecting the appearance quality of the rod. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a polyetheretherketone pure resin rod extrusion molding device, which overcomes the shortcomings of the prior art and aims to solve the problem that when the existing polyetheretherketone pure resin rod extrusion device cuts the rod, burrs are easily generated on the incision, which affects the appearance of the rod.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyetheretherketone pure resin rod extrusion molding device, comprising a chassis, an extruder, a feeding funnel, a die, a cutting device, a stabilizing cylinder and a cooling cylinder, the extruder, the stabilizing cylinder and the cooling cylinder are arranged on the top surface of the chassis, the feeding funnel is arranged on the extruder, the die of the extruder is connected to the cooling cylinder, the cutting device is arranged at the discharge port of the cooling cylinder, the side of the cutting device away from the cooling cylinder is connected to the stabilizing cylinder, the cutting device comprises: a cutting blade, a motor, a transmission device, a moving device and a fixing device, the motor, the transmission device and the moving device are arranged inside the chassis, the motor and the transmission device are fixed on the moving bracket of the moving device, the motor is connected to the transmission device, the transmission device is fixedly connected to the cutting blade, part of the cutting blade passes through the cutting groove on the top of the chassis, the cutting groove is arranged along the vertical direction of the movement of the rod, and the fixing device is arranged on both sides of the cutting groove for fixing the rod.

[0006] During operation, the extruder is turned on, the polyetheretherketone raw material is loaded into the feed funnel, the extruder is working, the polyetheretherketone rod is extruded from the die of the extruder into the cooling cylinder, the rod is initially cooled by the cooling cylinder, and then passes through the cutting device into the stabilizing cylinder. After reaching the predetermined position, the extruder stops working, the fixing device clamps the rod, the motor is started, the motor drives the transmission device to rotate, the transmission device drives the cutting blade to rotate at high speed, the moving device pushes the moving bracket to move along the cutting groove, and the cutting blade cuts the rod at the part higher than the cutting groove. After the cutting is completed, the fixing device is released, and a cutting work is completed.

[0007] As a preferred technical solution of the utility model, the first clamping point includes: the moving device also includes: a slide groove and an electric cylinder, the direction of the slide groove is parallel to the cutting groove, the mobile bracket is arranged on the slide groove, the electric cylinder is fixed to the inside of the chassis, and the push rod of the electric cylinder is connected to the mobile bracket for pushing the mobile bracket to move.

[0008] As a preferred technical solution of the utility model, the movable bracket includes: a slide rail, a support plate and a support column, the support column is arranged at the edge of the support plate, the slide rail is arranged at the bottom of the support plate, and the slide rail is clearance-matched with the slide groove.

[0009] As a preferred technical solution of the utility model, a rolling bearing is fixed on the upper part of the support column, the rolling bearing is connected to the middle sleeve of the rotating shaft of the transmission device, and the end of the rotating shaft away from the transmission device is fixedly connected to the cutting blade.

[0010] As a preferred technical solution of the utility model, the fixing device includes: a support, a clamping bottom and a clamping cover, the support is fixed to the upper surface of the chassis, the support is arranged parallel to the cutting groove, a groove is arranged at the top of the support, the outer surface of the clamping bottom is loosely matched with the groove, a first mold cavity and a first flange are arranged on the clamping bottom, and the clamping cover is provided with a second mold cavity, the first mold cavity and the second mold cavity are used to fix the rod, and the first flange and the clamping cover are fixedly connected to the support by screws.

[0011] As a preferred technical solution of the utility model, the first mold cavity and the second mold cavity are semicircular, and the first mold cavity and the second mold cavity are provided with various specifications for clamping bars of various specifications.

[0012] As a preferred technical solution of the utility model, a control unit is connected to the extruder, the electric cylinder, the motor and the cooling cylinder, and is used to control the operation of the extrusion device.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The cutting disc is used to cut the rod. The cutting disc rotates at high speed, and the blade of the cutting disc quickly slides on the surface of the rod to remove material. The cutting disc moves with the moving bracket of the moving device and gradually cuts off the rod, reducing the pressure applied to the surface of the rod when cutting the rod, avoiding excessive deformation of the incision, generating burrs, and affecting the appearance quality of the polyetheretherketone rod.

[0015] 2. By placing most of the overall structure of the cutting device inside the chassis, the center of gravity of the entire device is lowered, which is beneficial to improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 It is a front view of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the mobile bracket of the utility model;

[0020] Figure 5 This is a schematic diagram of the clamping bottom structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the clamping cover structure of the utility model;

[0022] Figure 7This is a schematic diagram of the support structure of the utility model;

[0023] In the figure: 1. chassis; 101. cutting groove; 2. extruder; 3. feeding funnel; 4. die; 5. cutting device; 501. cutting blade; 502. motor; 503. transmission device; 5031. rotating shaft; 504. moving device; 5041. moving bracket; 5042. slide groove; 5043. electric cylinder; 5044. slide rail; 5045. support plate; 5046. support column; 5047. rolling bearing; 505. fixing device; 5051. support; 5052. clamping bottom; 5053. clamping cover; 5054. groove; 5055. first cavity; 5056. first flange; 5057 second cavity; 6. stabilizing cylinder; 7. cooling cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-7 The utility model provides the following technical solution: a polyetheretherketone pure resin rod extrusion molding device, comprising: a chassis 1, an extruder 2, a feed hopper 3, a die 4, a cutting device 5, a stabilizing cylinder 6 and a cooling cylinder 7, the extruder 2, the stabilizing cylinder 6 and the cooling cylinder 7 are arranged on the top surface of the chassis 1, the feed hopper 3 is arranged on the extruder 1, the die 4 of the extruder 1 is connected to the cooling cylinder 7, a cutting device 5 is arranged at the discharge port of the cooling cylinder 7, the cutting device 5 is connected to the stabilizing cylinder 6 on the side away from the cooling cylinder, and the cutting device 5 comprises: a cutting blade 501, a motor 502, a transmission device 503, a moving device 504 and a fixing device 505, the motor 502, the transmission device 503 and the moving device 504 are arranged inside the chassis 1, the motor 502 and the transmission device 503 are fixed on a moving bracket 5041 of the moving device 504, the motor 502 is connected to the transmission device 503, the transmission device 503 is fixedly connected to the cutting blade 501, a part of the cutting blade 501 passes through the cutting groove 101 on the top of the chassis 1, the cutting groove 101 is arranged along the vertical direction of the movement of the rod, and the fixing device 505 is arranged on both sides of the cutting groove 101 for fixing the rod.

[0026] During operation, the extrusion device is turned on, the polyetheretherketone raw material is loaded into the feeding funnel 3, the extruder 2 is working, the polyetheretherketone rod is extruded from the mouth die 3 of the extruder 2 into the cooling cylinder 7, the rod is initially cooled by the cooling cylinder 7, and then passes through the cutting device 5 into the stabilizing cylinder 6. After reaching the predetermined position, the extruder 2 stops working, the fixing device 505 clamps the rod, the motor 502 is started, the motor 502 drives the transmission device 503 to rotate, the transmission device 503 drives the cutting blade 501 to rotate at a high speed, the moving device 504 pushes the moving bracket 5041 to move along the cutting groove 101, and the cutting blade 501 cuts the rod part which is higher than the cutting groove 101. After the cutting is completed, the fixing device 505 is released to complete a cutting work.

[0027] The extrusion device is arranged in this way, and the cutting blade 501 is used to cut the rod. Through the high-speed rotation of the cutting blade 501, the blade of the cutting blade 501 quickly slides against the surface of the rod to remove material. The cutting blade 501 moves with the moving bracket 5041 of the moving device 504, and gradually cuts off the rod, thereby reducing the pressure applied to the surface of the rod when cutting the rod, avoiding excessive deformation of the incision, generating burrs, and affecting the appearance quality of the polyetheretherketone rod. At the same time, most of the overall structure of the cutting device 5 is located inside the chassis 1, which reduces the center of gravity of the entire device and is conducive to improving the stability of the device.

[0028] Specifically, the mobile device 504 further includes: a slide groove 5042 and an electric cylinder 5043. The direction of the slide groove 5042 is parallel to the cutting groove 101. The mobile bracket 5041 is arranged on the slide groove 5042. The electric cylinder 5043 is fixed inside the chassis 1. The push rod of the electric cylinder 5043 is connected to the mobile bracket 5041 and is used to push the mobile bracket 5041 to move. The mobile device 504 is simple in structure and fast in response speed, which is conducive to reducing the complexity of the device. The electric cylinder 5043 has the characteristics of precise control and high stability, which is helpful to control the cutting speed, reduce the influence of the cutting blade 501 on the incision of the bar material during the cutting process, improve the quality of the cut bar material, and improve the stability and reliability of the cutting device.

[0029] Specifically, the mobile bracket 5041 includes: a slide rail 5044, a support plate 5045 and a support column 5046, wherein the support column 5046 is arranged at the edge of the support plate 5045, the slide rail 5044 is arranged at the bottom of the support plate 5045, and the slide rail 5044 is in clearance with the slide groove 5042. Such an arrangement facilitates the installation and fixation of the mobile bracket 5041, can reserve space for the installation and operation of the cutting blade 501, is conducive to fully utilizing the space, and improves the utilization rate of the internal space of the chassis.

[0030] Specifically, a rolling bearing 5047 is fixed to the support column 5046, and the rolling bearing 5047 is connected to the middle sleeve of the rotating shaft 5031 of the transmission device 503, and the end of the rotating shaft 5031 away from the transmission device 503 is fixedly connected to the cutting blade 501. This arrangement reduces the friction between the rotating shaft 5031 and the support column 5056, which is conducive to increasing the rotation speed of the cutting blade 501, reducing energy consumption, and achieving a better cutting effect.

[0031] Specifically, the fixing device 505 includes: a support 5051, a clamping bottom 5052 and a clamping cover 5053. The support 5051 is fixed to the upper surface of the chassis 1. The support 5051 is arranged parallel to the cutting groove 101. A groove 5054 is arranged at the top of the support 5051. The outer surface of the clamping bottom 5052 is gap-matched with the groove 5054. The clamping bottom 5052 is provided with a first mold cavity 5055 and a first flange 5056. The clamping cover 5053 is provided with a second mold cavity 5057. The first mold cavity 5055 and the second mold cavity 5057 are used to fix the rod. The first flange 5056 and the clamping cover 5053 are fixedly connected to the support 5051 by screws. The fixing device 505 is arranged in this way to reduce the distance between the cutting blade 501 and the clamping tooling, reduce the torque generated by the cutting force on the rod during cutting, avoid bending and deformation of the rod caused by cutting, help improve the geometric accuracy of the rods produced by the device, and ensure the product quality during mass production.

[0032] Specifically, the first die cavity 5055 and the second die cavity 5057 are semicircular, and the first die cavity 5055 and the second die cavity 5057 are provided with various specifications for clamping bars of various specifications. This arrangement facilitates the replacement of the first die cavity 5055 and the second die cavity 5057 on site according to the actual production bar size, so that the fixing device can better fix the bar, ensure the clamping force of the fixing device 505 on the bar, and avoid the collision between the cutting blade 501 and the bar due to loose fixation, resulting in excessive vibration, delaying the cutting process, and affecting the cutting quality.

[0033] Specifically, the control unit is connected to the extruder 2, the electric cylinder 5043, the motor 502 and the cooling cylinder 7 to control the operation of the extrusion device. This arrangement improves the automation of the extrusion device, facilitates on-site production and processing, and helps to improve production efficiency.

[0034] Working principle: When working, the extrusion device is turned on, the polyetheretherketone raw material is loaded into the feeding funnel 3, the extruder 2 is working, the polyetheretherketone rod is extruded from the mouth die 3 of the extruder 2 into the cooling cylinder 7, the rod is initially cooled by the cooling cylinder 7, and then passes through the cutting device 5 into the stabilizing cylinder 6. After reaching the predetermined position, the extruder 2 stops working, the fixing device 505 clamps the rod, and the motor 502 is started. The motor 502 drives the transmission device 503 to rotate, and the transmission device 503 drives the cutting blade 501 to rotate at a high speed. The moving device 504 pushes the moving bracket 5041 to move along the cutting groove 101. The cutting blade 501 cuts the rod part that is higher than the cutting groove 101. After the cutting is completed, the fixing device 505 is released to complete a cutting work.

[0035] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A polyetheretherketone pure resin rod extrusion molding device, comprising a chassis (1), an extruder (2), a feed hopper (3), a die (4), a cutting device (5), a stabilizing cylinder (6) and a cooling cylinder (7), wherein the extruder (2), the stabilizing cylinder (6) and the cooling cylinder (7) are arranged on the top surface of the chassis (1), the feed hopper (3) is arranged on the extruder (2), the die (4) of the extruder (2) is connected to the cooling cylinder (7), the cutting device (5) is arranged at the discharge port of the cooling cylinder (7), and the cutting device (5) is connected to the stabilizing cylinder (6) on the side away from the cooling cylinder, characterized in that: The cutting device (5) comprises: a cutting blade (501), a motor (502), a transmission device (503), a moving device (504) and a fixing device (505); the motor (502), the transmission device (503) and the moving device (504) are arranged inside the chassis (1); the motor (502) and the transmission device (503) are fixed on a moving bracket (5041) of the moving device (504); the motor (502) is connected to the transmission device (503); the transmission device (503) is fixedly connected to the cutting blade (501); a portion of the cutting blade (501) passes through a cutting groove (101) at the top of the chassis (1); the cutting groove (101) is arranged along a vertical direction of movement of the rod; the fixing device (505) is arranged on both sides of the cutting groove (101) for fixing the rod.

2. The polyetheretherketone pure resin rod extrusion molding device according to claim 1 is characterized in that: The moving device (504) further comprises: a slide groove (5042) and an electric cylinder (5043); the direction of the slide groove (5042) is parallel to the cutting groove (101); the moving bracket (5041) is arranged on the slide groove (5042); the electric cylinder (5043) is fixed inside the chassis (1); and a push rod of the electric cylinder (5043) is connected to the moving bracket (5041) for pushing the moving bracket (5041) to move.

3. The polyetheretherketone pure resin rod extrusion molding device according to claim 2 is characterized in that: The movable bracket (5041) comprises: a slide rail (5044), a support plate (5045) and a support column (5046), wherein the support column (5046) is arranged at the edge of the support plate (5045), the slide rail (5044) is arranged at the bottom of the support plate (5045), and the slide rail (5044) is clearance-matched with the slide groove (5042).

4. The polyetheretherketone pure resin rod extrusion molding device according to claim 3 is characterized in that: A rolling bearing (5047) is fixed to the upper part of the support column (5046), and the rolling bearing (5047) is connected to the middle sleeve of the rotating shaft (5031) of the transmission device (503), and the end of the rotating shaft (5031) away from the transmission device (503) is fixedly connected to the cutting blade (501).

5. The polyetheretherketone pure resin rod extrusion molding device according to claim 3 is characterized in that: The fixing device (505) comprises: a support (5051), a clamping bottom (5052) and a clamping cover (5053); the support (5051) is fixed to the upper surface of the chassis (1); the support (5051) is arranged parallel to the cutting groove (101); a groove (5054) is arranged at the top of the support (5051); the outer surface of the clamping bottom (5052) is clearance-matched with the groove (5054); a first mold cavity (5055) and a first flange (5056) are arranged on the clamping bottom (5052); the clamping cover (5053) is provided with a second mold cavity (5057); the first mold cavity (5055) and the second mold cavity (5057) are cooperated to fix the rod; the first flange (5056) and the clamping cover (5053) are fixedly connected to the support (5051) by screws.

6. The polyetheretherketone pure resin rod extrusion molding device according to claim 5, characterized in that: The first mold cavity (5055) and the second mold cavity (5057) are semicircular in shape, and the first mold cavity (5055) and the second mold cavity (5057) are provided with various specifications for clamping bars of various specifications.

7. The polyetheretherketone pure resin rod extrusion molding device according to claim 2, characterized in that: The control unit is connected to the extruder (2), the electric cylinder (5043), the motor (502) and the cooling cylinder (7) and is used to control the operation of the extrusion device.

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