Easy-off inverted tip tube

Abstract

The utility model relates to an easy to dismantle formula anti -topping pipe, the outer wall of material pipe is equipped with a flange, the flange is equipped with a plurality of protrusions along its axial direction, and the adjacent two protrusions are clamping grooves, the front end of equipment main part is equipped with flange nut, the both ends of flange nut are through, and the inner passage of flange nut includes first cavity and second cavity from front to back in proper order, wherein, the inner wall of first cavity protrudes a plurality of clamping tables to the axial center, and the distance from the groove wall of installation groove to the axial center is greater than or equal to the radius of second cavity, the shape and size of clamping groove and clamping table are matched, the shape and size of protrusion and installation groove are matched, the axial length of clamping end is same with the axial length of second cavity, the threaded hole of being equipped with is through on clamping table, and the anti -topping bolt is installed in threaded hole. The utility model discloses material pipe simple structure, and dismouting is more fast.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to an easy-to-disassemble reverse ejector tube. Background Technology

[0002] Injection molding machines are crucial pieces of equipment in modern industry, typically consisting of a front-end screw assembly and a rear-end main body. The main body houses a drive unit that propels the screw assembly. The screw assembly comprises components such as the feed tube, screw, screw head, and nozzle. The feed tube is typically secured to the main body via flanges at its mid-to-rear end. However, existing flanges require tightening multiple bolts and nuts during assembly and disassembly, resulting in significant time consumption.

[0003] Therefore, there is an urgent need in this field for a material tube structure that is easier to assemble and disassemble. Summary of the Invention

[0004] The purpose of this utility model is to overcome the defects of the existing technology and provide an easy-to-disassemble reverse top material tube.

[0005] To achieve the purpose of this utility model, this application provides the following technical solution.

[0006] In a first aspect, this application provides an easily detachable anti-top material tube, the middle and rear ends of which are fixedly installed on the main body of an injection molding machine. A flange is provided on the outer wall of the material tube, and the flange has multiple protrusions along its axial direction, with a groove between adjacent protrusions. A flange nut is provided at the front end of the main body, the flange nut being continuous at both ends, and the inner channel of the flange nut sequentially includes a first cavity and a second cavity from front to back. Multiple locking platforms extend from the inner wall of the first cavity towards the axis, and an installation groove is provided between two adjacent locking platforms. The radius of the second cavity is greater than or equal to the distance from the groove wall to the axis. The shape and size of the locking groove match the locking platforms, the shape and size of the protrusions match the installation groove, and the axial length of the flange is the same as the axial length of the second cavity. A through-hole is provided on each locking platform, and an anti-top bolt is installed in the screw hole. The easily detachable reverse-top pipe of this application only requires inserting the flange on the pipe into the flange nut, allowing the flange to enter the second cavity. Then, rotate it a certain angle so that the protrusion is below the clamping platform. Next, tighten the reverse-top bolt downwards, pressing against the front end of the protrusion, thus preventing the flange from rotating and completing the stable installation of the entire pipe very quickly. For disassembly, simply rotate the reverse-top bolt slightly to separate it from the protrusion, allowing the flange to rotate. When the protrusion aligns with the mounting groove, the flange can be pulled out of the flange nut, completing the pipe disassembly. Installation and disassembly are much faster than existing flanges.

[0007] In one embodiment of the first aspect, the flange is integrally or separately fixedly installed on the outer wall of the material pipe.

[0008] In one embodiment of the first aspect, the flange nut is integrally or separately fixedly installed on the equipment body.

[0009] In one embodiment of the first aspect, the front end of the protrusion is provided with a positioning groove, the size of which matches the outer diameter of the anti-rotating bolt. The positioning groove serves two purposes: firstly, it provides positioning to determine the angle of flange rotation; secondly, it allows the anti-rotating bolt to be partially inserted into the front surface of the protrusion, preventing flange rotation. The depth of the positioning groove does not need to be large, approximately 1 mm is sufficient.

[0010] In one embodiment of the first aspect, the number of the card slots is 2 to 50.

[0011] In one embodiment of the first aspect, the radius of the mounting end is less than or equal to the distance from the inner edge of the snap-fit ​​station to the axis.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When disassembling and assembling the anti-top material pipe of this application, it is only necessary to slightly tighten the anti-top bolts to insert them into or release them from the positioning groove, so as to fix and loosen the flange and flange nut, thereby completing the disassembly and assembly of the anti-top material pipe. The structure is simple and the operation is convenient and quick. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the anti-top material pipe in this application.

[0014] Figure 2 for Figure 1 An enlarged schematic diagram of region A in the middle.

[0015] Figure 3 This is a schematic diagram of the integrated material tube in Example 1.

[0016] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of BB.

[0017] Figure 5 This is a cross-sectional structural diagram of the flange nut in this application.

[0018] Figure 6 This is a schematic diagram of the end face structure of the flange nut in this application.

[0019] Figure 7 This is a schematic diagram of the split-type material tube in Example 2.

[0020] In the attached drawings, 1 is the flange nut, 11 is the first cavity, 12 is the second cavity, 13 is the anti-top screw hole, 14 is the mounting screw hole, 15 is the snap-fit ​​platform, 16 is the mounting groove, 2 is the flange, 21 is the protrusion, 22 is the snap-fit ​​groove, 23 is the positioning groove, 3 is the material pipe, 4 is the screw, 5 is the main body of the equipment, 6 is the anti-top bolt, 7 is the fixing bolt, and 8 is the nozzle. Detailed Implementation

[0021] Unless otherwise defined, the technical or scientific terms used in this specification and claims shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. All values ​​listed herein, ranging from the minimum to the maximum, refer to all values ​​obtained by incrementing the minimum and maximum values ​​by one unit when the difference between the minimum and maximum values ​​is more than two units.

[0022] The following describes specific embodiments of this utility model. It should be noted that, in order to provide a concise description, this specification cannot provide a detailed description of all features of the actual embodiments. Without departing from the spirit and scope of this utility model, those skilled in the art can modify and substitute the embodiments of this utility model, and the resulting embodiments are also within the protection scope of this utility model. Example

[0023] The embodiments of this utility model will be described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments. Example 1

[0024] An easily detachable anti-top material pipe, wherein the rear end is fixedly installed on the main body of the equipment, such as Figure 1 , Figure 2 As shown. The front and middle ends of the feed tube 3 are the same as in the prior art. For example, the structures of the screw 4 and the nozzle 8 are also the same as in the prior art, and will not be described again here.

[0025] A flange 2 is integrally installed on the outer wall of the middle and rear ends of the material pipe 3, such as Figure 3 , Figure 4 As shown, the flange 2 includes eight identical protrusions 21 evenly arranged, eight slots 22 between two adjacent protrusions 21, and a positioning groove 23 is provided on the front end face of the protrusion 21.

[0026] The flange nut 1 has a ring of mounting screw holes 14 on its outer side and is installed at the front end of the equipment body 5 by fixing bolts 7. The structure of the flange nut 1 is as follows: Figure 5 , Figure 6As shown, the flange nut 1 has a through first cavity 11 and a second cavity 12 at its axial center. Eight uniformly sized snap-fit ​​platforms 15 extend evenly from the inner wall of the first cavity 11 towards the axial center. Each snap-fit ​​platform 15 is fan-shaped, and a mounting groove 16 is formed between adjacent snap-fit ​​platforms 15. Each snap-fit ​​platform 15 has a through-hole 13 for installing a reverse-mounting bolt 6. When not in use, the reverse-mounting bolt 6 is always installed in the reverse-mounting bolt hole 13, with the tail of the bolt 6 flush with or slightly forward of the tail of the reverse-mounting bolt hole 13. The second cavity 12 is a cylindrical cavity, and its axial length is the same as the axial length of the flange 2. The shape and size of the snap-fit ​​groove 22 are the same as those of the snap-fit ​​platform 15; the shape and size of the protrusion 21 are the same as those of the mounting groove 16, and the outer diameter of the protrusion 21 matches the inner diameter of the second cavity 12.

[0027] During installation, align the protrusion 21 of flange 2 with the mounting groove 16 of flange nut 1, and align the retaining groove 22 of flange 2 with the retaining platform 15 of flange nut 1. This ensures unobstructed axial movement of flange 2 and flange nut 1. Push flange 2 into the second cavity 12 until its tail end abuts against the front end of the equipment body 5. Then rotate the feed pipe 3, causing the protrusion 21 of flange 2 to rotate below the retaining platform 15 of flange nut 1, aligning the anti-top screw hole 13 with the positioning groove 23. Then rotate the anti-top bolt 6, causing its rear end to extend out of the anti-top screw hole 13 and insert into the positioning groove 23 until it abuts against the bottom of the positioning groove 23. In this way, the anti-top bolt 6 can restrict the rotation of the flange 2, while the equipment body 5 and the clamping platform 15 can restrict the axial displacement of the flange 2, and the side wall of the second cavity 12 can restrict the radial movement of the flange 2, thereby completing the fixing of the flange 2 and the flange nut 1, that is, completing the fixed installation of the anti-top material pipe and the equipment body.

[0028] Similarly, when it is necessary to disassemble the anti-top material pipe, simply rotate the anti-top bolt 6 in the opposite direction to disengage it from the positioning groove 23. At this time, the flange 2 can be rotated so that the protrusion 21 of the flange 2 is realigned with the mounting groove 16 of the flange nut 1, and the locking groove 22 of the flange 2 is realigned with the locking platform 15 of the flange nut 1. Then the flange 2 can be pulled out from the flange nut 1, thereby completing the disassembly of the anti-top material pipe. Example 2

[0029] It adopts the same structure as Example 1, except that: In this embodiment, the flange 2 is installed separately on the outside of the material pipe 3, such as... Figure 7 As shown. The other principles are the same as in Example 1, and will not be repeated here.

[0030] The above description of the embodiments is intended to enable those skilled in the art to understand and apply this application. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without creative effort. Therefore, this application is not limited to the embodiments described herein, and any improvements and modifications made by those skilled in the art based on the disclosure of this application without departing from the scope and spirit of this application are within the scope of this application.

Claims

1. A detachable reverse-top material tube, wherein the middle and rear ends of the material tube are fixedly installed on the main body of an injection molding machine, characterized in that, The outer wall of the material pipe is provided with a flange, and the flange has multiple protrusions along its axial direction, with a groove between two adjacent protrusions; the front end of the main body of the equipment is provided with a flange nut, which is through at both ends, and the inner channel of the flange nut includes a first cavity and a second cavity from front to back. The inner wall of the first cavity extends towards the axis with multiple locking platforms, and an installation groove is provided between two adjacent locking platforms. The radius of the second cavity is greater than or equal to the distance from the groove wall of the installation groove to the axis; the shape and size of the locking platform and the protrusion match the shape and size of the installation groove; the axial length of the flange is the same as the axial length of the second cavity; the locking platform has a through screw hole, and a counter-bolt is installed in the screw hole.

2. The easily detachable reverse-top material pipe as described in claim 1, characterized in that, The flange is either integrally or separately fixedly installed on the outer wall of the material pipe.

3. The easily detachable reverse-top material pipe as described in claim 1, characterized in that, The flange nut is either integrally or separately fixedly installed on the main body of the equipment.

4. The easily detachable reverse-top material pipe as described in claim 1, characterized in that, The front end of the protrusion is provided with a positioning groove, the size of which matches the outer diameter of the anti-top bolt.

5. The easily detachable reverse-top material pipe as described in claim 1, characterized in that, The number of card terminals is 2 to 50.

6. The easily detachable reverse-top material pipe as described in claim 1, characterized in that, The radius of the mounting end is less than or equal to the distance from the inner edge of the snap-fit ​​station to the axis.

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