Fully-coated extruder heating machine head

Abstract

The utility model relates to a fully-coated extruder heating machine head which is provided with a machine head body, a cavity is formed in the back face of the machine head body, and a sleeving hole communicated with the center of the end face of the cavity is formed in the front face of the machine head body. A forming head is arranged in the cavity; the exterior of the forming head is sleeved with a heating ring; a limiting baffle is arranged on the back face of the machine head body, and a limiting hole facilitating insertion of the rear end of the forming head is formed in the limiting baffle. Fixing holes penetrating through the front end and the rear end of the machine head body are formed in the positions, close to the two sides, of the front face of the machine head body respectively, and transition holes corresponding to the fixing holes in number and position front and back are formed in the limiting baffle; t-shaped bolts are arranged in the fixing holes and the transition holes which correspond to each other. According to the fully-coated extruder heating machine head, the internal forming head is heated through the heating ring arranged outside the internal forming head in a sleeving mode, materials extruded out of the discharging port can be heated, the cold material phenomenon during discharging of the discharging port is avoided, and the yellowing phenomenon caused by material overstock at the discharging port is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic extruder processing especially relates to a full cladding type extruder heating machine head. BACKGROUND

[0002] The host of the plastic extruder is the plastic extruder, which is composed of an extrusion system, a transmission system and a heating and cooling system; wherein the extrusion system comprises a screw, a cylinder, a hopper, a head and a die, the cylinder cooperates with the screw to realize the crushing, softening, melting, plasticizing, exhausting and compacting of the plastic, and continuously and uniformly convey the glue material to the forming system, the plastic is plasticized into uniform melt through the extrusion system, and is continuously extruded to the head by the screw under the pressure established in the process; the head is composed of an alloy steel inner sleeve and a carbon steel outer sleeve, the head is internally provided with a forming die, the outer shell of the head is fixed on the host by bolts, the die in the head is provided with a die core seat and is fixed on the inlet port of the head by a nut, the front of the die core seat is provided with a die core, the center of the die core and the die core seat has a hole for passing through a core wire, a pressure equalizing ring is arranged at the front of the head for balancing the pressure, and the head is externally provided with a heating device and a temperature measuring device.

[0003] At present, the forming head of the plastic extruder can only be heated from the top, bottom, left and right, and the discharge port direction cannot be heated, so that the material will be cold when being extruded, and the accumulated material will be yellow and affect the product quality. SUMMARY

[0004] The utility model wants to solve the technical problem that can make the extruder forming head discharge port place auxiliary heating's full cladding type extruder heating machine head.

[0005] In order to solve the above technical problem, the utility model is realized through the following technical scheme:

[0006] A full cladding type extruder heating machine head has a head body, the back of the head body is provided with a cavity, and the front is provided with a sleeve joint hole communicating with the center of the cavity end face; a forming head is arranged in the cavity, the front end of the forming head is inserted into the sleeve joint hole, and the rear end of the forming head protrudes outside the back of the head body; a heating ring is sleeved on the outside of the forming head, an adapter groove is arranged on the top of the head body for leading out the wire bundle of the heating ring, a limiting baffle is fixedly connected to the back of the head body, a limiting hole is arranged on the limiting baffle corresponding to the position of the cavity for facilitating the insertion of the rear end of the forming head, and the rear end face of the forming head is flush with the back of the limiting baffle; a fixing hole penetrating through the front and rear ends of the head body is arranged on the front of the head body close to both sides, a transition hole corresponding to the number and position of the fixing holes on the head body is arranged on the limiting baffle, T-shaped bolts are arranged in the mutually corresponding fixing holes and transition holes, the rear end of the T-shaped bolt extends to the back of the limiting baffle through the fixing hole and the transition hole, and the rear end of the T-shaped bolt is connected with the threaded hole preset on the end face of the extruder forming head.

[0007] Further, the outer part of the forming head is provided with a copper sleeve matched with the forming head, and the heating coil is arranged outside the copper sleeve; the front and back lengths of the copper sleeve are consistent with the front and back lengths of the heating coil, and the rear end is attached to the front surface of the limiting baffle; the front end surface of the copper sleeve is provided with at least one outward protruding positioning block, and the front end surface of the forming cavity is provided with a positioning hole matched with the positioning block.

[0008] Further, the outer periphery of the copper sleeve is a threaded structure.

[0009] Further, the outer side of the forming head is provided with a limiting block integrally formed along the length direction of the forming head, and the inner part of the copper sleeve is provided with a positioning groove penetrating through the front and back ends of the copper sleeve and matched with the limiting block; the front surface of the limiting baffle is provided with a limiting groove with the same cross section profile and corresponding front and back positions as the positioning groove.

[0010] Further, the back surface of the limiting baffle is provided with a dovetail groove communicated between the left and right sides along the length direction of the limiting baffle, and a sliding block is arranged in the dovetail groove and matched with the dovetail groove in sliding mode; the front surface of the sliding block is provided with a connecting hole communicated between the front and back positions, and the connecting hole is a countersunk hole; the sliding block is fixedly connected with a threaded hole prearranged on the end surface of the forming head of the extruder through a screw penetrating through the connecting hole.

[0011] Further, the limiting baffle and the head body are fixedly connected together through a fixing screw.

[0012] Compared with the prior art, the full-coated extruder heating head has the advantages that the full-coated extruder heating head is fixedly installed at the discharge port of the forming head of the extruder through a bolt, the product extruded from the discharge port passes through the forming head in the full-coated extruder heating head, the forming head is heated by the heating coil arranged outside the forming head, the material extruded from the discharge port can be heated, the cold material phenomenon can be avoided when the material is discharged from the discharge port, and the yellowing phenomenon caused by material accumulation at the discharge port can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 is a front surface shaft side structure schematic view of a full-coated extruder heating head of the present application;

[0015] Figure 2 is a back surface shaft side structure schematic view of a full-coated extruder heating head of the present application;

[0016] Figure 3 is a full cladding type extruder heating machine head front structure schematic diagram of the utility model;

[0017] Figure 4 is Figure 3 structure section view of A-A in the middle;

[0018] Figure 5 is Figure 3 structure section view of B-B in the middle;

[0019] Figure 6 is a full cladding type extruder heating machine head middle forming head and heating ring assembly structure schematic diagram of the utility model.

[0020] In the figure: 1, machine head body;11, socket hole;12, link groove;13, cavity;111, positioning hole;2, forming head;21, limit block;3, limit baffle;31, dovetail groove;32, limit hole;321, limit slot;33, fixed screw;4, heating ring;5, sliding block;51, connecting hole;6, bolt;7, copper sleeve;71, positioning block;72, positioning slot. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents the selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application. It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the application, it should be explained that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the application when it is usually placed, which is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0023] In addition, if the terms "horizontal", "vertical" and the like appear, it does not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure or component must be completely horizontal, but can be slightly inclined.

[0024] In the description of the embodiments of the application, "a plurality of" represents at least 2.

[0025] In the description of the embodiments of the application, it should also be explained that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect", "connect" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0026] Embodiments

[0027] Please refer to the drawings in the description Figures 1 to 3 in the description Figures 1 to 3The utility model discloses a full cladding type extruder heating machine head, can fixed installation in the end face of plastic extruder forming machine head corresponding forming machine head's discharge port, with heating function, can make the material / product from the discharge port extrusion is heated, avoids the material / product from the discharge port extrusion and immediately cooling and causes the phenomenon of material accumulation, also avoided the phenomenon of material / product yellowing because of material accumulation, the full cladding type extruder heating machine head has the head body 1, the back of head body 1 is provided with cavity 13, the number and position of cavity 13 are consistent with the number and position of plastic extruder forming machine head end discharge port, can correspond to front and back, convenient link, the part of head body 1 front corresponding cavity 13 is provided with the sleeve joint hole 11 of the center of the end face of intercommunication cavity 13, cavity 13 is provided with forming head 2, and the front end of forming head 2 is inserted in the sleeve joint hole 11, and the rear end of forming head 2 protrudes on the back outside of head body 1, in order to heat forming joint 2, the outside of forming head 2 is sleeved with heating ring 4, in order to make the heating of forming head 2 more balanced, refer to the copper sleeve 7 of the sleeve joint cooperation of the outside of forming head 2 as shown in the description attached Figures 4 to 6 As shown, the copper sleeve 7 is provided with a copper sleeve 7 matched with the sleeve joint cooperation of the outside of forming head 2, and the heating ring 4 is sleeved on the outside of the copper sleeve 7, and the copper sleeve has good heat conductivity, facilitating temperature transmission; the front and back lengths of the copper sleeve 7 are consistent with the front and back lengths of the heating ring 4, so that the installation of the copper sleeve in the cavity 13 does not protrude on the back outside of the head body 1; in order to limit the axial position of the forming head 2, the heating ring and the copper sleeve 7 in the cavity 13, the back of the head body 1 is provided with a limiting baffle 3 fixedly connected thereto, the limiting baffle 3 and the head body 1 are fixedly connected together through fixing screws 33, convenient to disassemble and assemble, the front of the limiting baffle 3 is attached to the back of the head body 1, the part of the limiting baffle 3 corresponding to the cavity 13 is provided with a limiting hole 32 for facilitating the rear end insertion of the forming head 2, and the rear end surface of the forming head 2 is flush with the back of the limiting baffle 3; in order to avoid affecting the installation of the limiting baffle 3 on the head body 1, the rear ends of the heating ring 4 and the copper sleeve 7 are attached to the front of the limiting baffle 3, and the axial position of the heating ring 4 and the copper sleeve 7 in the cavity 13 can be limited through the limiting baffle 3; in order to be able to limit the position of the copper sleeve 7, avoid the phenomenon of rotation of the copper sleeve 7, the front end surface of the copper sleeve 7 is provided with at least one outward protruding positioning block 71, and the front end surface of the cavity 13 is provided with a positioning hole 111 matched with the positioning block 71, which effectively limits the rotation of the copper sleeve 7 in the cavity 13, and guarantees the stability of the structure; refer to the copper sleeve 7 of the sleeve joint cooperation of the outside of forming head 2 as shown in the description attached Figure 4 And 5As shown, in order to make the forming head 2 heated more evenly by the copper sleeve 7, the outer peripheral surface of the copper sleeve 7 is threaded, and the wall surface of the central hole can also be designed as a spiral structure, which is convenient for temperature conduction and ensures the uniformity of temperature, thereby ensuring the uniform heating of the forming head 2 sleeved in the center, and ensuring the uniform heating of the material / product passing through the forming head 2; In order to facilitate the external power supply of the wire harness on the heating ring 4, the top of the machine head body 1 is provided with a matching groove 12 for facilitating the wire harness on the heating ring 4 to lead out, which limits the wire harness passing through and further limits the radial position of the heating ring 4; In order to be able to limit the installation position of the forming head 2 in the mold cavity 13, ensure that the forming head 2 cannot rotate axially, ensure the stability of the forming head 2 on the machine head body 1, and prevent the position of the forming head 2 from changing when the material / product passes through the inside of the forming head 2, the outer side of the forming head 2 is provided with a limiting block 21 integrally formed along the length direction thereof, and the limiting block 21 is in a long strip structure; It should be noted that the front end of the limiting block 21 and the front end of the forming head 2 have a spacing, and the depth of the sleeve hole 11 corresponds to the spacing; The front end of the limiting block 21 abuts against the front end surface of the mold cavity 13, thereby limiting the front end position of the forming head 2 in the mold cavity 13; The inside of the copper sleeve 7 is provided with a positioning groove 72 penetrating through the front and rear ends thereof and matched with the limiting block 21; When the forming head 2 is inserted into the copper sleeve 7, the limiting block 21 must also be matched with the positioning groove 72 provided on the wall of the central hole of the copper sleeve 7; The position of the limiting block 21 is limited by the positioning groove 72, thereby limiting the circumferential position of the forming head 2 in the copper sleeve 7, and preventing the forming head 2 from rotating axially; In order to limit the position of the rear end of the forming head 2 by the limiting baffle 3, prevent the forming head 2 from slipping out from the back of the limiting baffle 3 through the limiting hole 32, the front surface of the limiting baffle 3 is provided with a limiting groove 321 corresponding to the cross-sectional profile of the positioning groove 72 and corresponding to the front and rear thereof; It should be noted that after the limiting baffle 3 is fixedly installed on the back of the machine head body 1, the limiting groove 321 and the positioning groove 72 correspond to the front and rear thereof and are in communication with each other, and the total length of the front and rear thereof corresponds to the length of the front and rear of the limiting block 21; The structure of the limiting block 21 and the limiting groove 321 and the positioning groove 72 matched together is consistent; In order to facilitate the fixed connection of the full-cladding type extruder heating machine head of the utility model on the plastic extruder forming machine head end surface, the front surface of the machine head body 1 is provided with a fixing hole penetrating through the front and rear ends thereof near the two sides; The limiting baffle 3 is provided with a transition hole corresponding to the number and position of the fixing holes on the machine head body 1; The corresponding fixing hole and transition hole are provided with a T-shaped bolt 6, the rear end of the T-shaped bolt 6 penetrates through the fixing hole and the transition hole and extends to the back side of the back surface of the limiting baffle 3, and is used for connecting with the threaded hole preset on the plastic extruder forming machine head end surface; In order to facilitate the precise connection of the full-cladding type extruder heating machine head of the utility model on the plastic extruder forming machine head end, refer to the fixing hole and the transition hole in the description Figure 2 and 5As shown, the back of the limiting baffle 3 is provided with dovetail grooves 31 communicated left and right along the length direction, the dovetail grooves 31 have two symmetrical sides arranged above and below the limiting hole 32, the sliding block 5 is arranged in the dovetail groove 13 in sliding fit, the front of the sliding block 5 is provided with a connecting hole 51 communicated front and back, the connecting hole 51 is a counterbore, it should be noted that the sliding block 5 is fixedly connected with the preset threaded hole of the front end surface of the extruder molding machine head through the connecting hole 51 by a screw, when assembling, the sliding block 5 is fixed on the front end of the extruder molding machine head by a screw, then the full-cladding type extruder heating head is inserted on the sliding block 5 from the side of the sliding block 5 through the dovetail groove 31 on the back, the back of the full-cladding type extruder heating head is attached to the front end of the extruder molding machine head, at the same time, the fixing hole and the transition hole on the full-cladding type extruder heating head correspond to the preset threaded hole of the front end of the extruder molding machine head, then the full-cladding type extruder heating head is fixedly connected together by the T-shaped bolt 6, so that the full-cladding type extruder heating head is fixed to the front end of the extruder molding machine head, the discharge port of the extruder molding machine head and the rear end of the molding head 2 correspond to each other and are closely attached together, so as to facilitate the material / product to be sent into the molding head 2 from the discharge port and heated by the heated molding head 2 and then sent out.

[0028] The full-cladding type extruder heating head is fixedly installed at the discharge port of the extruder molding machine head by a bolt, the product extruded from the discharge port passes through the molding head 2 in the full-cladding type extruder heating head, the molding head 2 is heated by the heating ring 4 sleeved outside, so as to heat the material extruded from the discharge port, avoid the cold material phenomenon when discharging, and effectively avoid the yellowing phenomenon caused by material accumulation at the discharge port.

[0029] It should be noted that: the above is only a preferred embodiment of the present application, and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A full-cover extruder heating barrel characterized by: The utility model provides a machine head body (1), the back of machine head body (1) is provided with cavity (13), and the front is provided with the sleeve joint hole (11) that communicates the end face center of cavity (13), the cavity (13) is provided with the forming head (2) in, and the front end of forming head (2) is inserted in the sleeve joint hole (11), and the rear end of forming head (2) protrudes outside the back of machine head body (1), the outside of forming head (2) is sleeved with heating ring (4), and the top of machine head body (1) is provided with the link groove (12) that facilitates heating ring (4) wire bundle leads out, the back of machine head body (1) is provided with the limiting baffle (3) of fixed connection with it, and the part of limiting baffle (3) is provided with the limiting hole (32) of the rear end of forming head (2) for the convenience of insertion with corresponding cavity (13) of part, and the rear end surface of forming head (2) is flush with the back of limiting baffle (3) up and down, the front of machine head body (1) is provided with one fixed hole that penetrates its front and rear ends respectively near the part of two sides, and the limiting baffle (3) is provided with the transition hole of front and rear corresponding with the number and position of fixed hole on machine head body (1), and T type bolt (6) is arranged in the fixed hole and transition hole corresponding with each other, and the rear end of T type bolt (6) passes through fixed hole and transition hole and extends at the back side of the back of limiting baffle (3) for being connected with the threaded hole of the end face of extruder forming head for being preset.

2. A full-cover extruder heating head according to claim 1, characterized in that: The outside of forming head (2) is provided with copper sleeve (7) that is sleeved with it, and heating ring (4) is sleeved in the outside of copper sleeve (7), the front and rear length of copper sleeve (7) is consistent with the front and rear length of heating ring (4), and the rear end is attached together with the front of limiting baffle (3), and the front end surface of copper sleeve (7) is provided with at least one outward protruding positioning block (71), and the front end surface of cavity (13) is provided with positioning hole (111) that is embedded with positioning block (71) and is inserted with cooperation.

3. A full-cover extruder heating head according to claim 2, characterized in that: The outer circumferential surface of copper sleeve (7) is screw structure.

4. A full-cover extruder heater head according to claim 2, characterized in that: The outside of forming head (2) is provided with limiting block (21) that is integrally formed with it along its length direction, and the inside of copper sleeve (7) is provided with positioning groove (72) that penetrates its front and rear ends and is inserted with cooperation with limiting block (21), and the front of limiting baffle (3) is provided with limiting groove (321) that is same with the section contour of positioning groove (72) and is front and rear corresponding.

5. A full-cover extruder heater head according to claim 1, characterized in that: The back of limiting baffle (3) is provided with dovetail groove (31) that is communicated left and right along its length direction, and sliding block (5) is arranged in dovetail groove (31) and is slid with cooperation, and the front of sliding block (5) is provided with connecting hole (51) that is communicated front and rear, and connecting hole (51) is countersunk hole, and sliding block (5) is fixedly connected together with the threaded hole of the end face of extruder forming head for being preset through screw passing through connecting hole (51).

6. A full-cover extruder heater head according to claim 1, characterized in that: The limiting baffle (3) and machine head body (1) are fixedly connected together through fixed screw (33).

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