Two-point type extruder head mold loading and unloading equipment

Abstract

The utility model relates to the technical field of nylon pipe production equipment disassembling tools, in particular to two-point type extruder head mold assembling and disassembling equipment which comprises a cross rod, the bottom of the cross rod is rotationally connected with a limiting rod, the center of the cross rod is in threaded connection with a first lead screw, and the bottom of the first lead screw is rotationally connected with a rotating frame. According to the improved assembling and disassembling die, a machine head is fixed through the two limiting rods, the two fixing rods can fix the two ends and two points of a machine head die at the same time, the use space is reduced, the machine head die is drawn, and the assembling and disassembling die is convenient to assemble and disassemble. By adjusting the distance between the sliding blocks and clamping a machine head mold, the distance between the two sliding blocks can be adjusted according to the diameter of the machine head mold, the distance between the fixing rods is further adjusted, molds of various specifications can be clamped, and adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly tools for nylon tube production equipment, in particular to two-point extruder die assembly and disassembly equipment. Background Art

[0002] The main machine equipment used for nylon pipe extrusion molding is the extruder. An extruder is a device that converts materials, usually plastic, rubber or metal, into a specific shape through heating, mixing and extrusion. It is widely used in plastic processing, food industry, pharmaceutical manufacturing and other fields.

[0003] Because nylon tubes are of smaller specifications, smaller single-screw extruders are generally used for extrusion. Single-screw extruder is a common extrusion equipment with a relatively simple structure. It is mainly composed of a screw, a barrel, a heating device and a mold. The diameter of the nylon tube is determined by the extruder's die mold and the vacuum sizing sleeve mold. In the process of switching the pipeline specifications, the originally installed die mold needs to be removed. Due to the adhesion and sealing of the material, the previous die mold is difficult to remove, which requires and consumes a lot of time and work intensity. The clamping tool that can quickly remove the extruder die mold can improve the disassembly efficiency and reduce the work intensity.

[0004] The inventor discovered the following problems in the prior art during the process of implementing the present invention:

[0005] 1. The existing gripper structure is mostly a three-point fixed clamping, plus a lever connection mechanism, to complete the extraction and removal of objects. However, it is difficult to clamp the mold in the extruder using a triangular fixation method;

[0006] 2. The clamping diameter of most fixed fixtures is fixed and cannot be adjusted. Ordinary clamps cannot adapt to various specifications of die head molds and have poor adaptability. Utility Model Content

[0007] The purpose of the present invention is to provide a two-point extruder head mold loading and unloading device to solve the problem proposed in the above background technology that the traditional three-point fixing clamp cannot be adapted to the extruder head mold, and the clamping diameter of the clamp cannot be adapted to head molds of various specifications. In order to achieve the above purpose, the present invention provides the following technical solution: a two-point extruder head mold loading and unloading device, comprising a cross bar, the bottom of which is rotatably connected to a limit rod, the center of the cross bar is threadedly connected to a first screw rod, the bottom of the first screw rod is rotatably connected to a rotating frame, the surface of the rotating frame is slidably connected to a slider, the bottom of the slider is welded to a fixing rod, and the inner thread of the slider is connected to a second screw rod.

[0008] Further preferably, there are two limit rods, and the two limit rods are respectively located at both ends of the cross rod, and the limit rods are arranged in a parallel structure.

[0009] Further preferably, a vertical structure is provided between the first screw rod and the cross bar, and the first screw rod can move linearly up and down along the cross bar.

[0010] Further preferably, a knob is welded to one end of the second screw rod, and the second screw rod is rotated by the knob.

[0011] Further preferably, the surface of the second screw rod is provided with two sets of positive and negative threads, and there are two sliders in total, and the two sliders form a linear motion through the second screw rod.

[0012] Further preferably, there are two fixing rods, and the cross section of the fixing rod is L-shaped.

[0013] Further preferably, the central axis of the crossbar coincides with the central axis of the rotating frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the utility model, the limiting rod is rotated and screwed into the extruder head, and the two fixing rods can fix the two ends of the head mold at the same time and are set in an L shape, which makes it easier to clamp the head mold. When the head mold is pulled out, it will not fall off. The entire loading and unloading mold can be fixed to the extruder head, fixed at two points, and the entire fixing rod and mold are driven to move by the first screw rod, which reduces the use space and pulls the head mold, thereby increasing the disassembly speed.

[0016] In the utility model, by covering the positions of the positive and negative sets of threads of the second screw rod respectively, when the second screw rod rotates, the two sliders respectively move in opposite directions along the second screw rod, and at the same time move closer to the middle or expand to both sides. When clamping the head mold, the distance between the two sliders can be adjusted according to the diameter of the head mold, and the distance between the fixed rods can be further adjusted, so that molds of various specifications can be clamped, and the adaptability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the fixed rod of the utility model after it is unfolded;

[0019] Figure 3 This is a schematic diagram of the structure of the rotating frame of the utility model after rotation;

[0020] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] In the figure: 1, cross bar; 2, limit rod; 3, first screw rod; 4, rotating frame; 5, slider; 6, fixed rod; 7, second screw rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a two-point extruder head mold loading and unloading device, including a cross bar 1, the bottom of the cross bar 1 is rotatably connected to a limit rod 2, the center of the cross bar 1 is threadedly connected to a first screw rod 3, the bottom of the first screw rod 3 is rotatably connected to a rotating frame 4, the surface of the rotating frame 4 is slidably connected to a slider 5, the bottom of the slider 5 is welded with a fixing rod 6, and the internal thread of the slider 5 is connected to a second screw rod 7.

[0024] In this embodiment, Figure 1 and Figure 2 As shown, there are two limit rods 2, and the two limit rods 2 are respectively located at the two ends of the cross bar 1, and the limit rods 2 are set to be parallel structures; it should be noted that the bottoms of the two limit rods 2 are provided with threads, which can be rotated and screwed in to fix the entire loading and unloading mold and the extruder head. The two-point fixation makes the operation more convenient.

[0025] In this embodiment, Figure 1 As shown, a vertical structure is set between the first screw rod 3 and the cross bar 1, and the first screw rod 3 can move linearly up and down along the cross bar 1; it should be noted that the top of the first screw rod 3 can be connected to a motor or a rocker to drive the first screw rod 3 to rotate. When the first screw rod 3 rotates, it moves vertically along the cross bar 1 to ensure that the rotating frame 4 below always remains parallel.

[0026] In this embodiment, Figure 1 As shown, a knob is welded to one end of the second screw rod 7, and the second screw rod 7 rotates through the knob; it should be noted that the design of the knob allows the user to perform precise fine-tuning by manual rotation, and accurately and delicately drive the second screw rod 7 to rotate.

[0027] In this embodiment, Figure 1 and Figure 2As shown, the surface of the second screw rod 7 is provided with two sets of positive and negative threads, and there are two sliders 5 in total, and the two sliders 5 constitute a linear motion through the second screw rod 7; it should be noted that the two sliders 5 respectively cover the positions of the positive and negative sets of threads of the second screw rod 7. When the second screw rod 7 rotates, the two sliders 5 respectively perform reverse linear motion along the second screw rod 7, and at the same time move closer to the middle, or expand to both sides. When clamping the head mold, the distance between the two sliders 5 can be adjusted according to the diameter of the head mold, and the distance between the fixing rods 6 can be further adjusted to clamp molds of various specifications.

[0028] In this embodiment, Figure 1 and Figure 4 As shown, there are two fixing rods 6, and the cross-section of the fixing rods 6 is set to be L-shaped; it should be noted that the two fixing rods 6 can fix the two ends of the head mold at the same time, and being set to be L-shaped makes it easier to clamp the head mold, and the head mold will not fall off when the head mold is pulled.

[0029] In this embodiment, Figure 3 As shown, the central axis of the cross bar 1 coincides with the central axis of the rotation; it should be noted that the central axes of the two coincide with each other. When the rotating frame 4 rotates along the first screw 3 to fix the head mold, its center position remains unchanged. When the slider 5 drives the fixed rod 6 to clamp the head mold, the head mold is always in the center position, and the clamping force of the fixed rod 6 on both sides of the head mold is consistent, avoiding uneven force when the head mold is pulled.

[0030] The use method and advantages of this utility model: When the two-point extruder die loading and unloading device is used, the working process is as follows:

[0031] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, first align the bottom of the two limit rods 2 with the position threaded holes of the extruder head, rotate and screw them in, fix the entire loading and unloading mold to the extruder head, and then dock the motor or rocker at the top of the first screw rod 3 to drive the first screw rod 3 to rotate. The first screw rod 3 rotates clockwise, driving the first screw rod 3 to move forward along the cross bar 1, driving the entire rotating frame 4, the slider 5 and the fixed rod 6 to move forward until the position of the fixed rod 6 coincides with the position of the head mold, and rotate the second screw rod 7. When the second screw rod 7 rotates clockwise, it drives the two sliders Block 5 moves toward the middle until the inner wall of the fixed rod 6 and the head mold are tightly fitted, stop rotating the second screw rod 7, and then rotate the first screw rod 3 counterclockwise. The first screw rod 3 drives the turret 4 slider 5 and the fixed rod 6 to move backward at the same time, pulling the head mold out of the extruder head. When loading and unloading a new mold, the head mold can also be installed on the inner wall of the fixed rod 6 first. The first screw rod 3 rotates clockwise and moves forward along the cross bar 1, driving the head mold forward until the head mold is completely fitted with the extruder.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-point extruder die loading and unloading device, comprising a crossbar (1), characterized in that: The bottom of the crossbar (1) is rotatably connected to a limit rod (2); the center of the crossbar (1) is threadedly connected to a first screw rod (3); the bottom of the first screw rod (3) is rotatably connected to a rotating frame (4); the surface of the rotating frame (4) is slidably connected to a slider (5); the bottom of the slider (5) is welded to a fixing rod (6); the inner thread of the slider (5) is threadedly connected to a second screw rod (7).

2. The two-point extruder die loading and unloading device according to claim 1, characterized in that: There are two limit rods (2) in total, and the two limit rods (2) are respectively located at the two ends of the cross rod (1), and the limit rods (2) are arranged in a parallel structure.

3. The two-point extruder die loading and unloading device according to claim 1, characterized in that: The first screw rod (3) and the cross bar (1) are arranged in a vertical structure, and the first screw rod (3) can move linearly up and down along the cross bar (1).

4. The two-point extruder die loading and unloading device according to claim 1, characterized in that: One end of the second screw rod (7) is welded with a knob, and the second screw rod (7) is rotated by the knob.

5. The two-point extruder die loading and unloading device according to claim 1, characterized in that: The surface of the second screw rod (7) is provided with two groups of positive and negative threads, and there are two sliders (5) in total, and the two sliders (5) form a linear motion through the second screw rod (7).

6. The two-point extruder die loading and unloading device according to claim 1, characterized in that: There are two fixing rods (6) in total, and the cross section of the fixing rods (6) is L-shaped.

7. The two-point extruder die loading and unloading device according to claim 1, characterized in that: The central axis of the crossbar (1) coincides with the central axis of the rotating frame (4).

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