Extruder die head dismounting auxiliary device

Abstract

The utility model belongs to the technical field of disassembly and assembly of extruder die heads, and particularly relates to an extruder die head disassembly and assembly auxiliary device which comprises a lifting type workbench. The auxiliary device comprises a lifting type workbench, a die head supporting platform is connected to the lifting type workbench in a sliding mode, the die head supporting platform horizontally slides in a reciprocating mode in the width direction of the lifting type workbench, and a limiting assembly used for limiting a die head is arranged on the die head supporting platform. By means of the device, quick positioning of the screw holes can be achieved, the die head can be cleaned and maintained conveniently, faults of a die head heat preservation plate can be eliminated easily, and the device is easy to operate, safe, effective, high in practicability and suitable for large-range popularization.

Description

Technical Field

[0001] This utility model belongs to the field of extruder die head disassembly and assembly technology, and specifically relates to an auxiliary device for extruder die head disassembly and assembly. Background Technology

[0002] Screw extruders are the most commonly used equipment in plastic processing. They generally consist of several parts, including a transmission device, a feeding device, an extruder barrel, a screw, and a die.

[0003] Due to prolonged high-speed operation, the heat generated by friction accelerates component wear. When plastic granules, additives, and auxiliaries enter the cylinder for mixing and compounding, friction is unavoidable, causing wear on the cylinder and threaded components. Additives and auxiliaries may be corrosive, directly corroding the inner wall of the cylinder and reducing its lifespan. Wear is more severe in the feeding area and the glass fiber addition area. Gases such as moisture, air, and oxygen within the cylinder further exacerbate wear. All of these factors contribute to wear on the threaded components of the screw, necessitating periodic opening of the die head, replacement of the threaded components, and die head maintenance.

[0004] In most common twin-screw extruders, the die head is connected to the extruder barrel of the last section via a rod. When the screw connecting the die head to the extruder barrel is removed, the die head is hung on the extruder barrel via the rod. The die head can be adjusted to one side of the extruder by rotating the rod, making it easy to remove the screw for replacement of threaded components and other die head maintenance. After the screw is back in place, the die head is then installed on the last section of the extruder barrel with the support of the rod.

[0005] The above method of disassembling the mold head has the following problems:

[0006] (1) The rod is usually connected by threads. The shaft rotates. Due to the long operation of the extruder, the gap becomes larger. When the die head is reinstalled, the screw hole deviation is large, and multiple adjustments are required to install the screw.

[0007] (2) When the mold head needs to be cleaned and maintained, the rotating structure will affect the operation and is unsafe.

[0008] (3) When installing the mold head, it is usually heated and supported by rods. When the position is adjusted by wrench multiple times, it is easy to burn the staff. Summary of the Invention

[0009] This invention provides an auxiliary device for disassembling and assembling extruder die heads, which can solve the problems pointed out in the background art.

[0010] An auxiliary device for disassembling and assembling an extruder die includes a lifting worktable; a die support platform is slidably connected to the lifting worktable, the die support platform reciprocates horizontally along the width direction of the lifting worktable, and the die support platform is provided with a limiting component for limiting the die.

[0011] Preferably, the limiting component includes limiting clamps on both sides, which are fixed to the mold head support platform. The limiting clamps on both sides limit the mold head, and the mold head support platform supports the mold head.

[0012] Preferably, the mold head support platform is provided with a positioning groove, and the limiting clamps on both sides are symmetrically arranged at both ends of the positioning groove and fixed by the first bolt.

[0013] Preferably, the inner sides of the two limiting clamps are provided with limiting grooves that match the two sides of the mold head.

[0014] Preferably, the front sides of the two limiting clamps are provided with oblique supports, and the upper and lower ends of the oblique supports are respectively connected to the limiting clamps and the mold head support platform by second bolts.

[0015] Preferably, the limiting component is equipped with a position sensor.

[0016] Preferably, the limiting component is provided with a temperature sensing device for sensing the temperature of the mold head. The temperature sensing device includes a fixing rod and a temperature sensing probe fixed on the fixing rod. The fixing rod is fixed on the limiting component.

[0017] Preferably, the mold head support platform is slidably connected to the lifting worktable via a slide rail.

[0018] Preferably, the lifting worktable includes a table surface and a lifting support frame.

[0019] Preferably, the lifting support frame includes a base frame and a sliding frame. The platform is connected to the top of the sliding frame, and the lower end of the sliding frame is slidably connected to the base frame. The base frame and the sliding frame are provided with support adjustment screws, which support and lock the frame at the corresponding height.

[0020] Beneficial effects: This utility model provides an auxiliary device for disassembling and assembling extruder die heads, which facilitates the safe and quick disassembly and assembly of die heads during extruder maintenance. Through this device, screw holes can be quickly positioned, making it easier to clean and maintain the die head, and helping to troubleshoot die head insulation plate malfunctions. It is simple to operate, safe and effective, highly practical, and suitable for widespread promotion. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram illustrating the use of this utility model. Figure 1 ,

[0023] Figure 3 This is a schematic diagram illustrating the use of this utility model. Figure 2 ,

[0024] Explanation of reference numerals in the attached figures:

[0025] Numbered in the diagram: 1. Lifting worktable; 11. Tabletop; 12. Lifting support frame; 121. Base frame; 122. Sliding frame; 123. Support adjusting screw; 2. Die head support platform; 2. Positioning groove; 21. Limiting clamp; 31. First bolt; 32. Limiting groove; 33. Inclined support; 34. Second bolt; 35. Position sensor; 4. Fixing rod; 51. Sensing probe; 52. Slide rail; 6. Die head; 7. Detailed Implementation

[0026] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment. Example

[0027] like Figure 1-3 As shown in the figure, an extruder die head disassembly and assembly auxiliary device provided in this embodiment of the utility model includes a lifting worktable 1; a die head support platform 2 is slidably connected to the lifting worktable 1, the die head support platform 2 reciprocates horizontally along the width direction of the lifting worktable 1, and a limiting component for limiting the die head is provided on the die head support platform 2.

[0028] Specifically, the limiting component includes limiting clamps 31 on both sides, which are fixed on the mold head support platform 2. The limiting clamps 31 on both sides limit the mold head, and the mold head support platform 2 supports the mold head. The mold head support platform 2 is provided with positioning grooves 21. The limiting clamps 31 on both sides are symmetrically arranged at both ends of the positioning grooves 21 and are fixed by first bolts 32. The inner sides of the limiting clamps 31 on both sides are provided with limiting grooves 33 that match the two sides of the mold head.

[0029] Specifically, the mold head support platform 2 is slidably connected to the lifting worktable 1 via a slide rail 6. The lifting worktable 1 includes a table surface 11 and a lifting support frame 12. The lifting support frame 12 includes a base frame 121 and a sliding frame 122. The table surface 11 is connected above the sliding frame 122, and the lower end of the sliding frame 122 is slidably connected to the base frame 121. The base frame 121 and the sliding frame 122 are provided with a support adjustment screw 123, which supports and locks the mold head at the corresponding height.

[0030] To ensure the stability of the limiting position, in some embodiments, the front side of the limiting clamps 31 on both sides is provided with an oblique support 34, and the upper and lower ends of the oblique support 34 are respectively connected to the limiting clamps 31 and the mold head support platform 2 by a second bolt 35.

[0031] In some embodiments, the limiting component is provided with a position sensor 4 for recording the position and providing feedback to the host computer.

[0032] In some embodiments, the limiting assembly is provided with a temperature sensing device for sensing the temperature of the die head. The temperature sensing device includes a fixing rod 51 and a temperature sensing probe 52 fixed on the fixing rod 51. The fixing rod 51 is fixed on the limiting assembly. The temperature rise of the die head is monitored by the sensing probe 52, and a temperature curve is generated by the host computer. By analyzing the curve, it is possible to check whether the working status of the die head heating plate is normal, and prevent uneven heating of the die head, which may lead to poor extrusion of the extruder. After the heating plate is checked, the temperature sensing device is removed and the die head is installed.

[0033] The operating method of this utility model:

[0034] (1) Unscrew the screws between the extruder die 7 and the extruder barrel. At this time, the die 7 can be rotated by the rod connected to the extruder barrel, and the rod also plays a supporting role.

[0035] (2) Move the device to the working position, and place the mold head 7 on the mold head support platform 2 by rotating the rod. After positioning, install the limiting component to limit the position.

[0036] (3) Once the position sensing device is installed in place, record the position code at this time, i.e., the height position, horizontal position, etc.;

[0037] (4) Turn off the heating tube of the mold head, disconnect the wires, disassemble the rods, move the device to the designated position, and perform maintenance work on the mold head 7;

[0038] (5) After the screw thread element of the extruder is replaced and the die 7 is maintained, move the device to its original position, install the temperature sensing device, reconnect the wires, turn on the heating tube, and heat the die 7. At this time, monitor the temperature curve of the temperature sensing device. By analyzing the curve, it is possible to check whether the working status of the heating plate of the die 7 is normal, and prevent uneven heating of the die 7, which may lead to poor extrusion of the extruder. After checking the heating plate, remove the temperature sensing device and install the die 7.

[0039] (6) Adjust the height and front and back position of the mold head support platform 2. The position sensing device will immediately reflect the height and horizontal offset. By comparing with the initial position, it will assist in the installation of the screw holes. After the mold head 7 is installed in place, install the rod.

[0040] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An auxiliary device for disassembling and assembling an extruder die head, characterized in that: It includes a lifting worktable (1); a mold head support platform (2) is slidably connected to the lifting worktable (1), the mold head support platform (2) slides horizontally back and forth along the width direction of the lifting worktable (1), and the mold head support platform (2) is provided with a limiting component for limiting the mold head.

2. The extruder die head disassembly and assembly auxiliary device according to claim 1, characterized in that: The limiting component includes limiting clamps (31) on both sides. The limiting clamps (31) are fixed on the mold head support platform (2). The mold head is limited by the limiting clamps (31) on both sides and supported by the mold head support platform (2).

3. The extruder die head disassembly and assembly auxiliary device according to claim 2, characterized in that: The mold head support platform (2) is provided with a positioning groove (21), and the limiting clamps (31) on both sides are symmetrically arranged at both ends of the positioning groove (21) and fixed by the first bolt (32).

4. The extruder die head disassembly and assembly auxiliary device according to claim 3, characterized in that: The inner sides of the limiting clamps (31) on both sides are provided with limiting grooves (33) that match the two sides of the mold head.

5. The extruder die head disassembly and assembly auxiliary device according to claim 4, characterized in that: The front sides of the limiting clamps (31) on both sides are provided with inclined supports (34), and the upper and lower ends of the inclined supports (34) are respectively connected to the limiting clamps (31) and the mold head support platform (2) by second bolts (35).

6. An extruder die head disassembly and assembly auxiliary device according to any one of claims 1-5, characterized in that: The limiting component is equipped with a position sensor (4).

7. An extruder die head disassembly and assembly auxiliary device according to any one of claims 1-5, characterized in that: The limiting component is provided with a temperature sensing device for sensing the temperature of the mold head. The temperature sensing device includes a fixing rod (51) and a temperature sensing probe (52) fixed on the fixing rod (51). The fixing rod (51) is fixed on the limiting component.

8. An extruder die head disassembly and assembly auxiliary device according to any one of claims 1-5, characterized in that: The mold head support platform (2) is slidably connected to the lifting worktable (1) via a slide rail (6).

9. An auxiliary device for disassembling and assembling an extruder die head according to any one of claims 1-5, characterized in that: The lifting worktable (1) includes a table surface (11) and a lifting support frame (12).

10. The extruder die head disassembly and assembly auxiliary device according to claim 9, characterized in that: The lifting support frame (12) includes a base frame (121) and a sliding frame (122). The sliding frame (122) is connected to the platform (11) above and the lower end of the sliding frame (122) is slidably connected to the base frame (121). The base frame (121) and the sliding frame (122) are provided with a support adjustment screw (123), which supports and locks the frame at the corresponding height.

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