CN210634095U

CN210634095U - Plastic extrusion molding equipment

Info

Publication number: CN210634095U
Application number: CN201921485645.3U
Authority: CN
Inventors: 李胜华
Original assignee: Shandong Huapeng Polymer Material Co Ltd
Current assignee: Shandong Huapeng Polymer Material Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-05-29
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses a plastic extrusion molding device, which comprises a bottom plate and an extrusion unit, wherein the upper surface of the bottom plate is provided with a support, the cambered surface of the support is provided with an outer cylinder, the inner surface of the outer cylinder is provided with four evenly distributed annular heating plates, coiled heating wires are arranged inside the annular heating plates, a feeding unit is arranged above the right side of the outer cylinder, the inner surface of the outer cylinder is provided with a cooling unit, the extrusion unit is arranged on the inner surface of the annular heating plates, the right end of the extrusion unit is provided with a gear disc, the two gear discs are connected in a meshing way, the upper surface of the bottom plate is provided with a motor support, the upper surface of the motor support is provided with an extrusion motor, the output shaft of the extrusion motor is fixedly connected with the center of the right side surface of the gear disc at the upper end, the left end of the extrusion unit is provided, segmented temperature control can be performed while preventing the workpiece from being deformed or over-stretched.

Description

Plastic extrusion molding equipment

Technical Field

The utility model relates to a plastics extrusion moulding technical field specifically is a plastics extrusion moulding equipment.

Background

In the processing and production process of plastics, the plastics are generally required to be extruded and molded, the extrusion molding is carried out by pressurizing the molten plastics, forcibly molding the plastics through a mold with a certain shape, then cooling and cutting the plastics to obtain a finished product, the process is usually finished by an extruder, the common extruder feeds materials in a natural blanking mode, a screw rod extrudes and melts the plastics in a material cylinder and pushes the plastics to a machine head for extrusion, the defects exist, the blanking is uneven or the feeding is interrupted in the blanking process, the product quality is influenced by incomplete melting or impurities of the plastics in the extrusion process, the temperature can not be controlled in a segmented mode in the heating and extrusion process, and the workpiece is deformed or excessively stretched due to untimely cooling after the extrusion is finished, so that the defects are solved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a plastics extrusion moulding equipment, prevent that the phenomenon that the unloading is inhomogeneous or the feed interrupts from appearing in the unloading process, make the plastics of extruding melt completely and avoid appearing impurity influence product quality, the heating extrusion in-process can carry out the segmentation accuse temperature, prevent to extrude that the completion back work piece warp or by overstretching, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a plastic extrusion molding apparatus includes a base plate and an extrusion unit;

a bottom plate: the upper surface of the bottom plate is provided with a support, the cambered surface of the support is provided with an outer cylinder, the inner surface of the outer cylinder is provided with four uniformly distributed annular heating plates, coiled heating wires are arranged in the annular heating plates, a feeding unit is arranged above the right side of the outer cylinder, and a cooling unit is arranged on the inner surface of the outer cylinder;

an extrusion unit: the extrusion unit is arranged on the inner surface of the annular heating plate, the right end of the extrusion unit is provided with two gear discs which are in meshed connection, the upper surface of the bottom plate is provided with a motor support, the upper surface of the motor support is provided with an extrusion motor, an output shaft of the extrusion motor is fixedly connected with the center of the right side surface of the gear disc at the upper end, and the left end of the extrusion unit is provided with a machine head;

wherein: still include the control switch group, the control switch group sets up in the leading flank of support, and external power source is connected to the input electricity of control switch group, and the heating wire inside extrusion motor and the cyclic annular hot plate is connected to the output electricity respectively of control switch group, and this plastics extrusion moulding equipment prevents that the unloading is inhomogeneous or the phenomenon that the feed was interrupted from appearing in the unloading in-process, makes the plastics of extruding melt completely and avoids appearing impurity influence product quality, heats and extrudes the in-process and can carry out the segmentation accuse temperature, prevents to extrude that the completion back work piece warp or by overstretching.

Furthermore, the extrusion unit comprises a first extrusion cylinder, screw rods, a filter screen and a second extrusion cylinder, the filter screen is arranged at the lower end of the first extrusion cylinder, the second extrusion cylinder is arranged on the lower surface of the filter screen, the interiors of the first extrusion cylinder and the second extrusion cylinder are communicated through small holes uniformly formed in the surface of the filter screen, the left ends and the right ends of the first extrusion cylinder, the second extrusion cylinder and the filter screen are respectively and fixedly connected with the corresponding side surfaces of the outer cylinder, the first extrusion cylinder and the second extrusion cylinder are matched and arranged on the inner surface of the annular heating plate, the right ends of the first extrusion cylinder and the second extrusion cylinder are respectively and fixedly connected with the right side of the inner surface of the outer cylinder, the screw rods are two and are respectively arranged in the first extrusion cylinder and the second extrusion cylinder, the right ends of the screw rods penetrate through holes formed in the right side surface of the outer cylinder through connecting pieces, the right ends of the two screw rods are respectively, the plastic particles are firstly heated and extruded in the first extrusion cylinder, and are extruded into the second extrusion cylinder from the meshes of the filter screen for further heating and plasticizing after softening and melting, the incompletely-melted plastic particles are blocked in the first extrusion cylinder for continuous heating and extrusion, and due to the filtering effect of the filter screen, the melted plastic extruded into the second extrusion cylinder is completely melted without impurities, so that the quality of an extruded product is ensured.

Further, the feeding unit includes feeding motor, the loading hopper, charge door and helical blade, the bottom of loading hopper runs through the upper end of first extrusion section of thick bamboo and urceolus, feeding motor sets up in the upper surface of loading hopper upper cover, feeding motor's output shaft passes the upper cover of loading hopper through the bearing, feeding motor's output shaft surface is provided with helical blade, helical blade's epitaxial cambered surface sets up with the bottom internal surface cooperation of loading hopper, the loading door sets up to be close to outer edge department in loading hopper's upper cover, feeding motor's input electricity connection control switch group's output, feeding motor drives helical blade and rotates inside the first extrusion section of thick bamboo of impressing by force with the plastic granules in the loading hopper, prevent to lead to the unloading inhomogeneous or to be blockked up because of the interact power between the plastic granules and cause the feed to interrupt at the lower extreme of loading hopper.

Further, the cooling unit includes main water pipe, distributive pipe, electronic water valve and annular cooling plate, the annular cooling plate sets up in the internal surface of urceolus, the annular cooling plate be four and with cyclic annular hot plate crisscross setting in proper order, the distributive pipe sets up in the upper end of annular cooling plate, the lower extreme of distributive pipe is linked together with the inside water course that sets up of annular cooling plate, electronic water valve establishes ties in the middle part of distributive pipe, the main water pipe is connected with the upper end of four distributive pipes, the output of electronic water valve's input electricity connection control switch group, electronic water valve can control corresponding annular cooling plate and control the temperature to the different positions of first extrusion section of thick bamboo and second extrusion section of thick bamboo, prevent to cause plastics to be burnt because inside extrusion produces the high temperature.

Further comprises a cooling cylinder and a temperature sensor, protection casing and filter, the cooling cylinder sets up in the left end of aircraft nose, the filter sets up in the inside right-hand member of aircraft nose, temperature sensor is six and distributes in the leading flank of corresponding first extrusion cylinder and second extrusion cylinder, temperature sensor runs through the front side of urceolus, the protection casing sets up in the upper surface right-hand member of bottom plate, the left end of protection casing and the right flank fixed connection of urceolus, the right flank of protection casing and the right-hand member cooperation setting of extruding motor, temperature sensor's output electricity connection control switch group's input, temperature sensor is used for monitoring the inside temperature of first extrusion cylinder and second extrusion cylinder, convenient timely accuse temperature, the cooling cylinder sets up and is favorable to in time cooling the work piece of extruding and solidifies in the left end of aircraft nose, prevent that the cooling is untimely appear warping often or by the.

Compared with the prior art, the beneficial effects of the utility model are that: the plastic extrusion molding equipment has the following advantages:

1. the output shaft of the charging motor drives the helical blade to rotate, and plastic particles are forcibly pressed into the first extrusion cylinder, so that the phenomenon that feeding is interrupted due to uneven blanking or blockage at the lower end of the charging hopper caused by interaction force between the plastic particles can be effectively prevented.

2. The plastic granules are heated in the first extrusion cylinder through the annular cooling plate, softened and melted and then extruded into the second extrusion cylinder from the meshes of the filter screen to be further heated and plasticized, the incompletely melted plastic granules are blocked in the first extrusion cylinder to be continuously heated and extruded, and due to the filtering effect of the filter screen, the melted plastic extruded into the second extrusion cylinder is completely melted without impurities, so that the quality of extruded finished products is ensured.

3. The corresponding electric water valves are controlled to be opened through the control switch group, cold water is injected into the water channels in the corresponding annular cooling plates to cool, the corresponding annular cooling plates can be controlled to control the temperature of different positions of the first extrusion cylinder and the second extrusion cylinder, and the plastic is prevented from being burnt due to overhigh temperature generated by internal extrusion.

4. Through constantly pouring into the cooling water into the inside spiral water course water filling port of cooling cylinder and cool off fashioned plastics, the cooling cylinder directly sets up in the left side of aircraft nose, is favorable to in time cooling the solidification to the work piece of extruding, prevents to cool off and appear warping or by overstretching untimely often.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is the schematic view of the sectional plane structure of the present invention.

In the figure: the device comprises a base plate 1, a support 2, an outer barrel 3, a control switch group 4, a machine head 5, a cooling unit 6, a main water pipe 601, a water distribution pipe 602, an electric water valve 603, an annular cooling plate 604, a cooling cylinder 7, a feeding unit 8, a feeding motor 801, a feeding hopper 802, a feeding port 803, a helical blade 804, an extrusion unit 9, a first extrusion cylinder 901, a screw 902, a filter screen 903, a second extrusion cylinder 904, a temperature sensor 10, a protective cover 11, an extrusion motor 12, a motor support 13, a gear disc 14, a filter plate 15 and an annular heating plate 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a plastic extrusion molding apparatus includes a base plate 1 and an extrusion unit 9;

bottom plate 1: the upper surface of the bottom plate 1 is provided with a support 2, the cambered surface of the support 2 is provided with an outer barrel 3, the inner surface of the outer barrel 3 is provided with four evenly distributed annular heating plates 16, coiled heating wires are arranged inside the annular heating plates 16, the annular heating plates 16 are convenient for controlling the internal temperatures of the first extrusion barrel 901 and the second extrusion barrel 904 in a segmented manner, a feeding unit 8 is arranged above the right side of the outer barrel 3, the feeding unit 8 comprises a feeding motor 801, a feeding hopper 802, a feeding port 803 and a helical blade 804, the bottom of the feeding hopper 802 penetrates through the upper ends of the first extrusion barrel 901 and the outer barrel 3, the feeding motor 801 is arranged on the upper surface of the upper cover of the feeding hopper 802, the output shaft of the feeding motor 801 penetrates through the upper cover of the feeding hopper 802 through a bearing, the helical blade 804 is arranged on the outer surface of the output shaft of the feeding, the feed inlet 803 is arranged at the position, close to the outer edge, of the upper cover of the feed hopper 802, and the feeding motor 801 drives the helical blade 804 to rotate so as to force the plastic particles in the feed hopper 802 into the first extrusion cylinder 901, so that the phenomenon that the feeding is interrupted at the lower end of the feed hopper 802 due to uneven blanking or blockage caused by the interaction force among the plastic particles is prevented. The inner surface of the outer barrel 3 is provided with a cooling unit 6, the cooling unit 6 comprises a main water pipe 601, a water distribution pipe 602, an electric water valve 603 and an annular cooling plate 604, the annular cooling plate 604 is arranged on the inner surface of the outer barrel 3, the annular cooling plates 604 are four and are sequentially arranged in a staggered manner with the annular heating plate 16, the water distribution pipe 602 is arranged at the upper end of the annular cooling plate 604, the lower end of the water distribution pipe 602 is communicated with a water channel arranged inside the annular cooling plate 604, the electric water valve 603 is connected in series with the middle of the water distribution pipe 602, the main water pipe 601 is connected with the upper ends of the four water distribution pipes 602, and the electric water valve 603 can control the corresponding annular cooling plate 604 to control the temperature of different positions of the first extrusion barrel 901 and the second extrusion barrel 904, so as.

The extrusion unit 9: the extrusion unit 9 comprises a first extrusion cylinder 901, two screws 902, a filter screen 903 and a second extrusion cylinder 904, wherein the filter screen 903 is arranged at the lower end of the first extrusion cylinder 901, the second extrusion cylinder 904 is arranged on the lower surface of the filter screen 903, the interiors of the first extrusion cylinder 901 and the second extrusion cylinder 904 are communicated through small holes uniformly arranged on the surface of the filter screen 903, the left and right ends of the first extrusion cylinder 901, the second extrusion cylinder 904 and the filter screen 903 are respectively fixedly connected with the corresponding side surfaces of the outer cylinder 3, the first extrusion cylinder 901 and the second extrusion cylinder 904 are matched and arranged on the inner surface of the annular heating plate 16, the right ends of the first extrusion cylinder 901 and the second extrusion cylinder 904 are respectively fixedly connected with the right side of the inner surface of the outer cylinder 3, the screws 902 are respectively arranged in the interiors of the first extrusion cylinder 901 and the second extrusion cylinder 904, the right ends of the screws 902 pass through holes arranged on the right side surface of the outer cylinder 3 through connecting pieces, gear, the left end of the second extrusion cylinder 904 is fixedly connected with the right side face of the machine head 5, the gear discs 14 are two and are in meshed connection, the motor support 13 is arranged on the upper surface of the base plate 1, the extrusion motor 12 is arranged on the upper surface of the motor support 13, the output shaft of the extrusion motor 12 is fixedly connected with the center of the right side face of the gear disc 14 at the upper end, the machine head 5 is arranged at the left end of the extrusion unit 9, plastic particles are firstly heated and extruded inside the first extrusion cylinder 901, after being softened and melted, the plastic particles are extruded into the second extrusion cylinder 904 from the meshes of the filter screen 903 to be further heated and plasticized, the incompletely melted plastic particles are blocked at the first extrusion cylinder 901 to be continuously heated and extruded, due to the filtering effect of the filter screen 903, the melted plastic extruded into the second extrusion cylinder 904 is completely melted without impurities, and the quality of an.

Wherein: the cooling cylinder 7 is arranged at the left end of the machine head 5, the filter plate 15 is arranged at the right end inside the machine head 5, plasticized plastics are changed from spiral flow into horizontal flow by the filter plate 15, the six temperature sensors 10 are distributed on the front side surfaces of the corresponding first extrusion cylinder 901 and the second extrusion cylinder 904, the temperature sensors 10 penetrate through the front side of the outer cylinder 3, the protection cover 11 is arranged at the right end of the upper surface of the bottom plate 1, the left end of the protection cover 11 is fixedly connected with the right side surface of the outer cylinder 3, the right side surface of the protection cover 11 is matched with the right end of the extrusion motor 12, the protection cover 11 protects a moving mechanical unit and prevents accidental injury, the temperature sensors 10 are used for monitoring the internal temperature of the first extrusion cylinder 901 and the second extrusion cylinder 904, the temperature is controlled in time conveniently, the cooling cylinder 7 is arranged at the left end of the machine head 5 and is favorable for cooling and solidifying the extruded workpieces in time, prevent deformation or over-stretching when the temperature is not lowered in time.

Wherein: the heating device is characterized by further comprising a control switch group 4, the control switch group 4 is arranged on the front side face of the support 2, the input end of the control switch group 4 is electrically connected with an external power supply, the output end of the control switch group 4 is electrically connected with the input ends of the extrusion motor 12, the feeding motor 801, the electric water valve 603 and the heating wires inside the annular heating plate 16 respectively, and the output end of the temperature sensor 10 is electrically connected with the input end of the control switch group 4.

When in use: the feeding motor 801, the extruding motor 12, the electric water valve 603 and the electric heating wires inside the annular heating plate 16 are turned on by controlling the switch group, plastic particles are added into the feeding hopper 802, the output shaft of the feeding motor 801 drives the helical blade 804 to rotate, the plastic particles are pressed into the first extruding cylinder 901, the plastic particles are heated in the first extruding cylinder 901 through the annular cooling plate 604 and are conveyed towards the machine head 5, the plastic in the molten state of the first extruding cylinder 901 is pressed into the second extruding cylinder 904 through the meshes of the filter screen 903 to be heated again, and is pushed to the machine head 5 by a screw rod at the lower end, the molten plastic is changed into linear motion from spiral motion under the resistance action of the filter plate 15, and is extruded and molded after passing through a die in the machine head 5, the formed plastic is cooled by continuously injecting cooling water into a water injection port of a spiral water channel in the cooling cylinder 7. The temperature sensor 10 is used for monitoring the internal temperatures of the first extrusion cylinder 901 and the second extrusion cylinder 904, so that temperature adjustment is convenient and timely, when the temperature sensor 10 detects that the temperatures in the first extrusion cylinder 901 and the second extrusion cylinder 904 exceed a required range value, the corresponding electric water valve 603 is controlled to be opened through the control switch group 4, and cold water is injected into a water channel inside the annular cooling plate 604 through the main water pipe 601 and the corresponding water distribution pipe 602 for cooling.

It is to be noted that the core chip of the control switch group 4 disclosed in this embodiment is a PLC single chip, the specific model is siemens S7-200, the extrusion motor 12, the feeding motor 801, the electric water valve 603, the temperature sensor 10, and the electric heating wires inside the annular heating plate 16 may be freely configured according to the actual application scenario, the extrusion motor 12 is proposed to be a horizontal AEEF series motor manufactured by dansheng electronics ltd, dongguan, the feeding motor 801 may be a vertical AEVF series motor manufactured by dansheng electronics ltd, and the temperature sensor 10 may be a ZTM128 series small sensor manufactured by the tenna sensor ltd. The control switch group 4 controls the extrusion motor 12, the feeding motor 801, the electric water valve 603, the temperature sensor 10 and the heating wires inside the annular heating plate 16 to work by adopting a method commonly used in the prior art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A plastic extrusion molding apparatus is characterized in that: comprises a bottom plate (1) and an extrusion unit (9);

base plate (1): the heating device is characterized in that a support (2) is arranged on the upper surface of the bottom plate (1), an outer barrel (3) is arranged on the arc surface of the support (2), four uniformly distributed annular heating plates (16) are arranged on the inner surface of the outer barrel (3), coiled heating wires are arranged in the annular heating plates (16), a feeding unit (8) is arranged above the right side of the outer barrel (3), and a cooling unit (6) is arranged on the inner surface of the outer barrel (3);

extrusion unit (9): the extrusion unit (9) is arranged on the inner surface of the annular heating plate (16), two gear discs (14) are arranged at the right end of the extrusion unit (9) and are in meshed connection, the motor support (13) is arranged on the upper surface of the base plate (1), the extrusion motor (12) is arranged on the upper surface of the motor support (13), the output shaft of the extrusion motor (12) is fixedly connected with the center of the right side surface of the gear disc (14) at the upper end, and the machine head (5) is arranged at the left end of the extrusion unit (9);

wherein: the heating device is characterized by further comprising a control switch group (4), wherein the control switch group (4) is arranged on the front side face of the support (2), an external power supply is electrically connected with the input end of the control switch group (4), and the output end of the control switch group (4) is electrically connected with the extrusion motor (12) and the heating wire inside the annular heating plate (16) respectively.

2. A plastic extrusion molding apparatus as claimed in claim 1, wherein: the extrusion unit (9) comprises a first extrusion cylinder (901), a screw rod (902), a filter screen (903) and a second extrusion cylinder (904), the filter screen (903) is arranged at the lower end of the first extrusion cylinder (901), the second extrusion cylinder (904) is arranged on the lower surface of the filter screen (903), the interiors of the first extrusion cylinder (901) and the second extrusion cylinder (904) are communicated through small holes uniformly formed in the surface of the filter screen (903), the left end and the right end of the first extrusion cylinder (901), the second extrusion cylinder (904) and the filter screen (903) are respectively fixedly connected with the corresponding side surfaces of the outer cylinder (3), the first extrusion cylinder (901) and the second extrusion cylinder (904) are matched and arranged on the inner surface of the annular heating plate (16), the right ends of the first extrusion cylinder (901) and the second extrusion cylinder (904) are respectively fixedly connected with the right side of the inner surface of the outer cylinder (3), the screw rods (902) are two and are respectively arranged in the interiors of the first extrusion cylinder (901) and the second extrusion cylinder (904), the right ends of the screws (902) penetrate through holes formed in the right side face of the outer barrel (3) through connecting pieces, gear discs (14) are arranged at the right ends of the two screws (902), and the left end of the second extrusion barrel (904) is fixedly connected with the right side face of the machine head (5).

3. A plastic extrusion molding apparatus as claimed in claim 2, wherein: the feeding unit (8) comprises a feeding motor (801), a feeding hopper (802), a feeding port (803) and a helical blade (804), the bottom of the feeding hopper (802) penetrates through the upper ends of a first extrusion barrel (901) and an outer barrel (3), the feeding motor (801) is arranged on the upper surface of the upper cover of the feeding hopper (802), an output shaft of the feeding motor (801) penetrates through the upper cover of the feeding hopper (802) through a bearing, the helical blade (804) is arranged on the outer surface of the output shaft of the feeding motor (801), an extension arc surface of the helical blade (804) is matched with the inner surface of the bottom end of the feeding hopper (802), the feeding port (803) is arranged at the position, close to the outer edge, of the upper cover of the feeding hopper (802), and the input end of the feeding motor (801) is electrically connected with the output end of.

4. A plastic extrusion molding apparatus as claimed in claim 1, wherein: cooling unit (6) include main water pipe (601), distributive pipe (602), electronic water valve (603) and annular cooling plate (604), annular cooling plate (604) set up in the internal surface of urceolus (3), annular cooling plate (604) be four and with annular hot plate (16) crisscross setting in proper order, distributive pipe (602) set up in the upper end of annular cooling plate (604), the lower extreme of distributive pipe (602) is linked together with the inside water course that sets up of annular cooling plate (604), electronic water valve (603) are established ties in the middle part of distributive pipe (602), main water pipe (601) is connected with the upper end of four distributive pipes (602), the output of the input electricity connection control switch group (4) of electronic water valve (603).

5. A plastic extrusion molding apparatus as claimed in claim 1, wherein: still include cooling cylinder (7), temperature sensor (10), protection casing (11) and filter (15), cooling cylinder (7) set up in the left end of aircraft nose (5), filter (15) set up in the inside right-hand member of aircraft nose (5), temperature sensor (10) are six and distribute in the leading flank that corresponding first extruded section of thick bamboo (901) and second extruded section of thick bamboo (904), temperature sensor (10) run through the front side of urceolus (3), protection casing (11) set up in the upper surface right-hand member of bottom plate (1), the left end of protection casing (11) and the right flank fixed connection of urceolus (3), the right flank of protection casing (11) and the right-hand member cooperation setting of extruding motor (12), the input of output electricity connection control switch group (4) of temperature sensor (10).