A high-efficiency extruder head for blow molding machines

Abstract

This utility model relates to the field of blow molding machine technology, and proposes a high-efficiency extruder head for blow molding machines, including a head body; a baffle fixedly connected to the lower end of the surface of the head body; a temperature sensor fixedly connected to the upper end of one side of the head body; a protective shell fixedly connected to the top of the head body; a threaded connecting pipe fixedly connected to the middle position of the top of the head body; a material guide sleeve fixedly connected to the inner top wall of the head body; an electric heater fixedly connected to the surface of the material guide sleeve; a fixing frame fixedly connected to the lower end of the inner wall of the head body; a mounting base fixedly connected to the bottom end of the fixing frame; and a flow divider block provided at the bottom end of the mounting base. The installation components allow for direct disassembly of the flow divider block, facilitating cleaning and maintenance of the inner wall of the head body and the surface of the flow divider block. The electric heater and heating pipe facilitate graded heating of the material entering the head body, ensuring smooth material extrusion.

Description

Technical Field

[0001] This utility model relates to the field of blow molding machine technology, specifically to a high-efficiency extruder head for blow molding machines. Background Technology

[0002] A blow molding machine is a device that processes molten plastic granules into products. It produces plastic products by blowing them into shape. The blow molding machine is an important component of a blow molding machine. Its main function is to extrude or press molten plastic into a preform through the die head so that it can be blow molded later.

[0003] A search revealed an existing patent (publication number: CN212860383U) that discloses a storage-type die head for an extrusion blow molding machine, relating to the field of extrusion blow molding machine technology. It includes an upper insulated storage pipe with an upper feed through-hole at the top and a lower discharge through-hole at the bottom below the upper feed through-hole. An internal heating mounting box is installed inside the upper insulated storage pipe, containing an electric heater. An internal temperature sensor is installed inside the upper insulated storage pipe below the internal heating mounting box. The beneficial effects of this invention are: by using a storage-type die head with heating and temperature detection capabilities, the raw material stored in the upper insulated storage pipe can be heated and kept warm, avoiding pre-cooling of the raw material before use. This ensures the raw material has higher plasticity during production, effectively reducing production difficulty and making it more convenient to use.

[0004] However, the above solution makes it inconvenient to filter impurities in the molten material. During the extrusion process of the blow molding machine, there are unmelted materials in the molten material. After these materials enter the die head, they will affect the mixing effect of the material, thereby reducing the subsequent plasticizing quality and causing inconvenience in its use.

[0005] In view of this, the present invention proposes a high-efficiency extruder head for blow molding machines. Utility Model Content

[0006] This invention proposes a high-efficiency extruder head for blow molding machines, which solves the problem of inconvenience in filtering impurities in molten materials in related technologies.

[0007] The technical solution of this utility model is as follows: A high-efficiency extruder head for a blow molding machine includes: a head body; a baffle fixedly connected to the lower end of the surface of the head body, a temperature sensor fixedly connected to the upper end of one side of the head body, a protective shell fixedly connected to the top of the head body, and a threaded connecting pipe fixedly connected to the middle position of the top of the head body; a filter assembly assembled inside the threaded connecting pipe, the filter assembly being used to filter molten material; a feed sleeve fixedly connected to the inner top wall of the head body, an electric heater fixedly connected to the surface of the feed sleeve, a fixing frame fixedly connected to the lower end of the inner wall of the head body, a mounting base fixedly connected to the bottom end of the fixing frame, and a flow divider block provided at the bottom end of the mounting base; and an installation assembly assembled on the flow divider block and the mounting base, the installation assembly being used to assemble and disassemble the flow divider block.

[0008] The filter assembly includes: a slot formed at an equal angle on the upper end of the inner wall of the threaded connecting pipe, with a locking block movably connected inside the slot; a guide platform fixedly connected to one end of the locking block, with a filter cylinder fixedly connected to the bottom end of the guide platform.

[0009] Preferably, the inner wall of the guide platform is funnel-shaped, and the area of ​​the cross-section at the top of the guide platform is equal to the area of ​​the cross-section of the opening in the inner wall of the threaded connecting pipe.

[0010] Preferably, a fixing rod is fixedly connected to the upper end of the inner wall of the guide platform, and the top end of the fixing rod is arc-shaped.

[0011] Preferably, the card block and the card slot form an engaging structure, and the card block and the card slot are convex in shape.

[0012] Preferably, the mounting assembly includes: a sealing groove formed at the bottom end of the mounting base, a threaded groove formed inside the mounting base at the top end of the sealing groove, and a heating tube fixedly connected at the middle position of the bottom end of the mounting base; a threaded ring fixedly connected to the top end of the diverter block, the threaded ring and the inside of the threaded groove forming a threaded fit structure, and a fixing groove formed at the middle position of the top end of the diverter block.

[0013] Preferably, a sealing ring is fixedly connected to the lower end of the surface of the threaded ring, and the sealing ring and the inner wall of the sealing groove form a locking sealing structure.

[0014] Preferably, the bottom end of the diverter block is provided with a groove, and the groove is in the shape of a regular hexagon.

[0015] Preferably, the top of the mounting base is frustum-shaped, and the top of the mounting base and the bottom of the fixing frame are welded together as an integral structure.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. In this utility model, when the molten material enters the threaded connecting pipe, it will be guided by the guide table to enter the filter cylinder. At this time, the filter cylinder is used to filter the unmelted material to prevent it from directly entering the die head body and affecting the subsequent plasticizing effect, thus ensuring the quality of the final blow molding. At the same time, after the die head body is disassembled, the filter cylinder can be taken out through the fixing rod, which facilitates the centralized processing of the filtered material inside the filter cylinder and improves its practicality.

[0018] 2. In this utility model, the heating tube is activated to facilitate the heating of the distributor block, which in turn works with the electric heater to achieve staged heating, ensuring the uniformity and smoothness of the material extrusion. At the same time, the threaded engagement of the threaded ring and the threaded groove allows for the assembly and disassembly of the distributor block and the mounting base. After the blow molding operation is completed, the distributor block can be disassembled and removed, which facilitates the cleaning of the surface of the distributor block and the inner wall of the die head body, avoiding the tedious and inconvenient cleaning or subsequent maintenance caused by fixing the distributor block. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0021] Figure 2 This is a front view structural diagram of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structural design of this utility model;

[0023] Figure 4 This is an exploded magnified structural diagram of the filter component of this utility model;

[0024] Figure 5 This is an exploded view of a partial cross-sectional structure of the diverter block and mounting base of this utility model.

[0025] In the diagram: 1. Filter assembly; 101. Guide platform; 102. Locking block; 103. Fixing rod; 104. Filter cartridge; 105. Locking groove; 2. Electric heater; 3. Machine head body; 4. Fixing frame; 5. Mounting assembly; 501. Groove; 502. Heating tube; 503. Threaded ring; 504. Fixing groove; 505. Sealing ring; 506. Sealing groove; 507. Threaded groove; 6. Diverter block; 7. Mounting base; 8. Temperature sensor; 9. Feed sleeve; 10. Protective shell; 11. Threaded connecting pipe; 12. Baffle. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1

[0028] A preferred embodiment of the high-efficiency extruder head for blow molding machines provided by this utility model is, for example... Figures 1 to 5 As shown: A high-efficiency extruder head for a blow molding machine includes a head body 3; a baffle 12 fixedly connected to the lower end of the surface of the head body 3; a temperature sensor 8 fixedly connected to the upper end of one side of the head body 3; a protective shell 10 fixedly connected to the top of the head body 3; a threaded connecting pipe 11 fixedly connected to the middle position of the top of the head body 3; a filter assembly 1 assembled inside the threaded connecting pipe 11, the filter assembly 1 being used to filter molten material; a feed sleeve 9 fixedly connected to the inner top wall of the head body 3, an electric heater 2 fixedly connected to the surface of the feed sleeve 9; a fixing frame 4 fixedly connected to the lower end of the inner wall of the head body 3, a mounting base 7 fixedly connected to the bottom end of the fixing frame 4, and a flow divider 6 provided at the bottom end of the mounting base 7; and a mounting assembly 5 assembled on the flow divider 6 and the mounting base 7, the mounting assembly 5 being used to assemble and disassemble the flow divider 6.

[0029] The filter assembly 1 includes: a slot 105 formed at an equal angle on the upper end of the inner wall of the threaded connecting pipe 11, and a locking block 102 movably connected inside the slot 105; a guide platform 101 fixedly connected to one end of the locking block 102, and a filter cylinder 104 fixedly connected to the bottom end of the guide platform 101.

[0030] In this embodiment, when the molten material enters the threaded connecting pipe 11, it is guided by the guide platform 101 to enter the filter cylinder 104. At this time, the filter cylinder 104 is used to filter the unmelted material to prevent it from directly entering the machine head body 3 and affecting the subsequent plasticizing effect. After the machine head body 3 is disassembled, the filter cylinder 104 can be taken out by the fixing rod 103 for centralized processing of the material filtered inside the filter cylinder 104.

[0031] In a further preferred embodiment of the present invention, the inner wall of the guide platform 101 is funnel-shaped, and the area of ​​the cross-section at the top of the guide platform 101 is equal to the area of ​​the cross-section of the opening in the inner wall of the threaded connecting pipe 11.

[0032] In this embodiment, a funnel-shaped guide platform 101 is used to guide the material, making it flow more smoothly and centrally into the filter cartridge 104.

[0033] In a further preferred embodiment of the present invention, a fixing rod 103 is fixedly connected to the upper end of the inner wall of the guide platform 101, and the top end of the fixing rod 103 is arc-shaped.

[0034] In this embodiment, the use of the arc-shaped fixing rod 103 facilitates the sliding and disassembly of the filter cartridge 104, and prevents material residue from easily remaining at the top of the fixing rod 103.

[0035] In a further preferred embodiment of the present invention, the card block 102 and the card slot 105 form an engaging structure, and the card block 102 and the card slot 105 are convex in shape.

[0036] In this embodiment, the engagement between the convex locking block 102 and the slot 105 improves the firmness and stability of the engagement installation between the guide platform 101 and the filter cylinder 104 and the threaded connecting pipe 11.

[0037] Example 2

[0038] Based on Example 1, a preferred embodiment of the high-efficiency extruder head for blow molding machines provided by this utility model is, for example... Figures 1 to 5 As shown: The mounting component 5 includes: a sealing groove 506 formed at the bottom end of the mounting base 7, a threaded groove 507 formed inside the mounting base 7 at the top end of the sealing groove 506, and a heating tube 502 fixedly connected at the middle position of the bottom end of the mounting base 7; a threaded ring 503 fixedly connected to the top end of the diverter block 6, the threaded ring 503 and the inside of the threaded groove 507 forming a threaded engagement structure, and a fixing groove 504 formed at the middle position of the top end of the diverter block 6.

[0039] In this embodiment, by activating the heating tube 502, the diverter block 6 is heated, which in turn works with the electric heater 2 to achieve graded heating, ensuring the uniformity and smoothness of the material extrusion. At the same time, the diverter block 6 can be disassembled and its surface cleaned or maintained by inserting an external hex wrench or other tools into the groove 501 and rotating it. The lower end of the inner wall of the head body 3 can also be cleaned.

[0040] In a further preferred embodiment of the present invention, a sealing ring 505 is fixedly connected to the lower end of the surface of the threaded ring 503, and the sealing ring 505 and the inner wall of the sealing groove 506 form a locking and sealing structure.

[0041] In this embodiment, the sealing ring 505 is used to improve the sealing performance of the top of the diverter block 6 and the bottom of the mounting base 7.

[0042] In a further preferred embodiment of the present invention, a groove 501 is provided at the bottom end of the diverter block 6, and the groove 501 is in the shape of a regular hexagon.

[0043] In this embodiment, the regular hexagonal groove 501 is used to facilitate the disassembly and assembly of the diverter block 6 by rotating it with an external hexagonal wrench.

[0044] In a further preferred embodiment of this utility model, the top of the mounting base 7 is frustum-shaped, and the top of the mounting base 7 and the bottom of the fixing frame 4 are welded together as an integrated structure.

[0045] In this embodiment, the top of the mounting base 7 is truncated cone-shaped, which can effectively reduce the accumulation and residue of materials at the top of the mounting base 7.

[0046] The working principle of this utility model is as follows: The electric heater 2, heating tube 502 and temperature sensor 8 are connected to the controller on the blow molding machine body, and then controlled by the external controller. The threaded connecting tube 11 is then screwed onto the blow molding machine. The molten material will then enter the threaded connecting tube 11 and be guided into the filter cylinder 104 by the guide table 101. At this time, the filter cylinder 104 filters the unmelted material to prevent it from directly entering the machine head body 3 and affecting the subsequent plasticizing effect.

[0047] At the same time, the electric heater 2 is started to heat the material. Then the material is extruded between the diverter block 6 and the inner wall of the die head body 3. The heating tube 502 is started to heat the diverter block 6. This, together with the electric heater 2, achieves staged heating, ensuring the uniformity and smoothness of the material extrusion and achieving efficient material extrusion.

[0048] Furthermore, after the blow molding operation is completed, the flow divider 6 can be inserted into the groove 501 and rotated using tools such as an external hex wrench, so that the threaded ring 503 and the internal threads of the threaded groove 507 can be rotated and disassembled. The flow divider 6 can then be disassembled for cleaning or maintenance, and the lower end of the inner wall of the machine head body 3 can be cleaned. During subsequent installation, the threaded engagement between the threaded ring 503 and the internal threads of the threaded groove 507 allows the flow divider 6 to be threadedly installed at the bottom of the mounting base 7, and the heating tube 502 will enter the fixed groove 504. At the same time, the sealing ring 505 is used to improve the sealing performance of the flow divider 6 and the mounting base 7.

[0049] After disassembling the head body 3, the filter cylinder 104 can be removed through the fixing rod 103, which facilitates centralized processing of the material filtered inside the filter cylinder 104. During installation, the locking block 102 can be locked into the slot 105 to improve the stability of the locking installation between the filter cylinder 104 and the threaded connecting pipe 11. Then, the head body 3 is threaded in to facilitate subsequent material blow molding and extrusion operations.

[0050] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described above, and the electrical connection should be completed by referring to the working sequence of each electrical component. The detailed connection methods are well-known technologies in the field. The above mainly introduces the working principle and process, and will not describe the electrical control.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high efficiency extruder head for a blow molding machine characterized by, include: The nose section (3); A baffle (12) is fixedly connected to the lower end of the surface of the machine head body (3). A temperature sensor (8) is fixedly connected to the upper end of one side of the machine head body (3). A protective shell (10) is fixedly connected to the top of the machine head body (3). A threaded connecting pipe (11) is fixedly connected to the middle position of the top of the machine head body (3). A filter assembly (1) is installed inside the threaded connecting pipe (11), the filter assembly (1) being used to filter molten material; A feeding sleeve (9) is fixedly connected to the inner top wall of the machine head body (3). An electric heater (2) is fixedly connected to the surface of the feeding sleeve (9). A fixing frame (4) is fixedly connected to the lower end of the inner wall of the machine head body (3). A mounting base (7) is fixedly connected to the bottom end of the fixing frame (4). A diverter block (6) is provided at the bottom end of the mounting base (7). The mounting assembly (5) is assembled on the diverter block (6) and the mounting base (7), and the mounting assembly (5) is used to realize the assembly and disassembly of the diverter block (6); The filtering component (1) includes: A slot (105) is formed at an equal angle on the upper end of the inner wall of the threaded connecting pipe (11), and a locking block (102) is movably connected inside the slot (105). A guide platform (101) is fixedly connected to one end of the card block (102), and a filter cylinder (104) is fixedly connected to the bottom end of the guide platform (101).

2. A high efficiency extruder head for blow molding machines as defined in claim 1, characterized in that, The inner wall of the guide platform (101) is funnel-shaped, and the area of ​​the cross-section at the top of the guide platform (101) is equal to the area of ​​the cross-section of the opening in the inner wall of the threaded connecting pipe (11).

3. A high efficiency extruder head for blow molding machines as defined in claim 1, wherein, A fixing rod (103) is fixedly connected to the upper end of the inner wall of the guide platform (101), and the top end of the fixing rod (103) is arc-shaped.

4. The high efficiency extruder head for blow molding machines according to claim 1, characterized in that, The card block (102) and the card slot (105) form an engaging structure, and the card block (102) and the card slot (105) are convex in shape.

5. The high efficiency extruder head for blow molding machines according to claim 1, characterized in that, The installation component (5) includes: A sealing groove (506) is formed at the bottom of the mounting base (7), and a threaded groove (507) is formed inside the mounting base (7) at the top of the sealing groove (506). A heating tube (502) is fixedly connected at the middle position of the bottom of the mounting base (7). A threaded ring (503) is fixedly connected to the top of the diverter block (6). The threaded ring (503) and the inside of the threaded groove (507) form a threaded fit structure. A fixing groove (504) is provided at the middle position of the top of the diverter block (6).

6. A high efficiency extruder head for a blow molding machine as defined in claim 5, wherein, A sealing ring (505) is fixedly connected to the lower end of the surface of the threaded ring (503), and the sealing ring (505) and the inner wall of the sealing groove (506) form a locking sealing structure.

7. A high efficiency extruder head for blow molding machines as defined in claim 1, wherein, The bottom end of the diverter block (6) is provided with a groove (501), and the groove (501) is in the shape of a regular hexagon.

8. A high efficiency extruder head for blow molding machines as defined in claim 1, wherein, The top of the mounting base (7) is frustum-shaped, and the top of the mounting base (7) and the bottom of the fixing frame (4) are welded together as an integrated structure.

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