WO2023168764A1

WO2023168764A1 - Core extraction device for electrofusion pipe fitting

Info

Publication number: WO2023168764A1
Application number: PCT/CN2022/083221
Authority: WO
Inventors: 苏伟; 彭祥瑞; 孙俊永; 卓勇刚; 张海华; 周豪宸; 赵一锋; 施鹏
Original assignee: 公元股份有限公司
Priority date: 2022-03-08
Filing date: 2022-03-26
Publication date: 2023-09-14
Also published as: CN114571681A

Abstract

The present invention belongs to the field of mechanical technology, and provided is a core extraction device for an electrofusion pipe fitting. The present invention resolves the problem of poor efficiency of an existing core extraction device. The core extraction device for an electrofusion pipe fitting comprises a frame; an upper driving mechanism capable of driving an upper half core body of a mold core to move upwards and a lower driving mechanism capable of driving a lower half core body of the mold core to move downwards are both arranged on the frame; an upper limiting assembly and a lower limiting assembly which can be used for abutting against each of two respective end faces of an electrofusion pipe fitting on the mold core are also provided on the frame; accommodating spacing capable of accommodating the electrofusion pipe fitting is formed between the upper limiting assembly and the lower limiting assembly, and the size of the accommodating spacing is adjustable. It is ensured that said spacing can always remain matched with the length dimension of an electrofusion pipe fitting, thereby causing the positions of electrofusion pipe fittings after each core extraction and separation to all be fixed; grabbing and unloading by a subsequent unloading mechanical arm, etc. are facilitated, production efficiency is improved, and the present invention is also adaptable to core extraction requirements of electrofusion pipe fittings of different lengths.

Description

A core-pulling device for electrofusion pipe fittings

Technical field

The invention belongs to the field of mechanical technology and relates to a core-pulling device for electrofusion pipe fittings.

Background technique

Electrofusion pipe fittings refer to a type of plastic pipe fittings that can be melted by the temperature generated by electric current to achieve connection. Existing electrofusion pipe fittings are all injection molded through molds. After molding, due to the strong wrapping force and the resistance wire wound on the inner wall of the pipe fittings, the mold core and the electrofusion pipe fittings must first be taken out of the mold for cooling. , and then remove the electrofusion pipe fitting from the mold core, that is, perform the core pulling operation. As shown in Figure 9, the mold core 11 of the existing electrofusion pipe fitting generally includes an upper half core body 11a and a lower half core body 11b. One end of the upper half core body 11a and one end of the lower half core body 11b are plugged into each other. The other ends of the half-core body 11a and the lower half-core body 11b both have protruding annular convex edges. When the core pulling operation is performed, the two annular convex edges serve as force application points.

The core pulling operation of the existing electrofusion pipe fittings is completed in the core pulling device, that is, the mold core and the electrofusion pipe fittings are taken out of the mold and cooled, then put into the core pulling device, and then driven through the upper and lower core pulling devices. The mechanism drives the upper half core body to move upward and the lower half core body to move downward respectively to separate the mold core and the electrofusion pipe fittings. The above-mentioned core pulling device has the following defects: 1. After the upper half core body and the lower core body are separated from the electrofusion pipe fittings, the electrofusion pipe fittings fall on the core pulling device under the action of their own gravity, and the falling position is Randomly, it is inconvenient for subsequent cutting and affects production efficiency; 2. During the core pulling process, the electrofusion pipe fittings may move together with the upper or lower core half, resulting in failure to achieve separation and separation. The effect is poor and affects the efficiency of production.

Contents of the invention

The purpose of the present invention is to propose a core-pulling device for electrofusion pipe fittings in view of the above-mentioned problems existing in the existing technology. The technical problem to be solved by the present invention is: how to solve the problem of poor efficiency of the existing core-pulling device.

The object of the present invention can be achieved by the following technical solutions: a core-pulling device for electrofusion pipe fittings, including a frame, which is provided with an upper driving mechanism capable of driving the upper half core of the mold core to move upward and an upper driving mechanism capable of driving the upper half core body of the mold core to move upward. A lower driving mechanism that drives the lower half of the mold core to move downward, characterized in that the frame is also provided with an upper limit component and a lower limit that can be used to respectively abut against the two end surfaces of the electrofusion pipe fittings on the mold core. A space is formed between the upper spacer assembly and the lower spacer assembly that can accommodate the electrofusion pipe, and the size of the spacer is adjustable.

This core-pulling device is provided with an upper limit component and a lower limit component on the frame. The upper limit component and the lower limit component can respectively abut against the two end surfaces of the electrofusion pipe fitting. During the core pulling process, the upper limit component and the lower limit component The component can limit the position of the electrofusion pipe fitting so that it will not move with the upper half core body or the lower half core body, thereby ensuring that the electrofusion pipe fitting can be separated from the upper half core body and the lower half core body. Moreover, the accommodation distance between the upper limit component and the lower limit component can be adjusted to ensure that the distance between the upper limit component and the lower limit component can always be consistent with the length and size of the electrofusion pipe fitting, so that the electrofusion pipe fitting can be aligned with the mold. After the core is separated, it is always located between the upper limit component and the lower limit component and is set vertically on the lower limit component. That is, the position of the electrofusion pipe fitting is fixed after each core separation, which is convenient for subsequent unloading manipulators. Remove materials and improve production efficiency. At the same time, it can also adapt to the core pulling requirements of electrofusion pipe fittings of different lengths.

In the above-mentioned core-pulling device for electrofusion pipe fittings, the upper limit assembly includes an upper limit plate and an upper clamping plate. The upper clamping plate is detachably connected to the upper limit plate, and the upper clamping plate has an opening. There is a U-shaped groove that can be inserted into the mold core and the upper end surface of the fusion pipe can be pressed against the edge of the groove. The lower limit assembly includes a lower limit plate and a lower clamping plate. The lower clamping plate can be detachably connected to the lower limit. On the positioning plate, the lower clamping plate is provided with two U-shaped grooves into which the mold core can be inserted and the edge of which can be contacted by the lower end face of the fused pipe fitting. The upper limiting plate and/or the lower limiting plate can face each other. The rack slides up and down and can be positioned after sliding. The U-shaped groove 1 of the upper clamping plate and the U-shaped groove 2 of the lower clamping plate are designed for the mold core to be inserted, and the groove widths of U-shaped groove 1 and U-shaped groove 2 are smaller than the electrofusion pipe fittings, and the groove edges It can respectively abut against the two end surfaces of the electrofusion pipe fitting to limit the position of the electrofusion pipe fitting. At the same time, the upper limit plate and/or the lower limit plate can move up and down and be positioned, so that the accommodation spacing can be adjusted, thereby ensuring that after the core pulling is separated, the electrofusion pipe fittings are positioned vertically on the lower clamping plate, that is, every time the core is pulled After separation, the position of the electrofusion pipe fittings is fixed, which facilitates the subsequent unloading of the unloading robot, improves production efficiency, and can also adapt to the core pulling requirements of electrofusion pipe fittings of different lengths. The upper clamping plate and the upper limit plate are detachably connected, and the lower clamping plate and the lower limit plate are detachably connected, and can be adapted and replaced according to electrofusion pipe fittings of different inner diameters. As an alternative, the upper positioning assembly includes two opposite upper plate bodies. Both upper plate bodies are slidably connected to the frame and can be positioned. A gap is formed between the two upper plate bodies for the mold core to pass through, and the gap is smaller than The pipe diameter of the electrofusion pipe fitting, the lower limit assembly includes two opposite lower plate bodies. Both lower plate bodies are slidingly connected to the frame and can be positioned. A gap is formed between the two lower plate bodies for the mold core to pass through. This gap is smaller than the pipe diameter of the electrofusion fitting.

In the above-mentioned core-pulling device for electrofusion pipe fittings, the upper limit plate has two oppositely arranged clamping slots. The upper clamping plate is U-shaped and the edges on both sides snap into the corresponding slots. The upper limit plate is provided with a U-shaped groove three opposite to the U-shaped groove one. The groove width of the U-shaped groove three is greater than the groove width of the U-shaped groove one. The lower limit plate has two oppositely arranged U-shaped grooves. Card slot two, the lower clamping plate is U-shaped and the edges on both sides snap into the corresponding card slot two. The lower limit plate is provided with a U-shaped groove four opposite to the U-shaped groove two. The U-shaped The groove width of groove four is greater than the groove width of U-shaped groove two. Through the above settings, the replacement and installation of the upper clamping plate and the lower clamping plate are facilitated.

In the above-mentioned core-pulling device for electrofusion pipe fittings, the lower plate surface of the upper limit plate has a concave mounting groove one, and the U-shaped groove three is opened on the bottom wall of the mounting groove one. The mounting groove There are also two upper guide bars that are arranged opposite each other and have an L-shaped cross-section. The two upper guide bars are respectively located on both sides of the U-shaped groove 3 and form the above-mentioned blocking groove with the edge of the U-shaped groove 3. 1. The upper surface of the lower limiting plate has a concave mounting groove 2. The U-shaped groove 4 is opened on the bottom wall of the mounting groove 2. Two opposite mounting grooves are also fixed on the bottom wall of the mounting groove 2. Lower guide bars with L-shaped cross-sections are provided. The two lower guide bars are respectively located on both sides of the U-shaped groove 4 and form the above-mentioned clamping groove 2 between the edges of the U-shaped groove 4. The upper clamping plate and the lower clamping plate are embedded in the first and second installation slots respectively, and are clamped through the first and second slots, making installation, disassembly and replacement more convenient.

In the above-mentioned core-pulling device for electrofusion pipe fittings, the core-pulling device also includes a control module capable of controlling the upper driving mechanism and the lower driving mechanism to operate at different times. During the core pulling process, the control module first controls the operation of the upper driving mechanism, driving the upper half core body to move upward to separate from the electrofusion pipe fittings, and then the control module controls the operation of the lower driving mechanism, driving the lower half core body to move downwards and the electrofusion pipe fittings. Separation is achieved. At this time, the lower end surface of the electrofusion pipe fitting abuts the lower limiting component. In other words, by setting up a control module, this application can control the upper driving mechanism and the lower driving mechanism to operate at different times, thereby ensuring that after the core-pulling separation, the electrofusion pipe fittings are positioned vertically on the lower limit assembly, that is, after each core-pulling separation The positions of the electrofusion pipe fittings are fixed, making it easier for subsequent unloading robots to grab and unload, which improves production efficiency.

In the above-mentioned core-pulling device for electrofusion pipe fittings, the upper driving mechanism includes an upper driving part provided on the frame and an upper sliding plate slidably connected to the frame, and the upper driving part is connected to the upper sliding plate. The upper sliding plate can be driven to move up and down. The lower surface of the upper sliding plate is provided with two opposite upper abutting plates. The upper driving member is electrically connected to the control module. The two upper abutting plates can abut on the lower end surface of the annular convex edge of the upper half core body, so that when the upper driving member drives the upper sliding plate to slide upward, it can drive the upper half core body to move upward together with the electrofusion pipe fittings. separation. As an alternative, the upper driving mechanism includes an upper driving part and an upper claw for hooking on the annular convex edge of the upper half core, and the upper driving part can drive the upper claw to move up and down.

In the above-mentioned core-pulling device for electrofusion pipe fittings, the lower driving mechanism includes a lower driving part and a lower sliding plate slidably connected to the frame. The lower driving part is connected to the lower sliding plate and can drive the lower sliding plate. Moving up and down, the upper surface of the lower sliding plate is provided with two opposite lower abutting plates, and the lower driving part is electrically connected to the control module. The two lower abutting plates can abut on the upper end surface of the annular convex edge of the lower half core body, so that when the lower driving member drives the lower sliding plate to slide downward, the lower half core body can be driven to move downward together to separate from the electrofusion pipe fittings. . As an alternative, the lower driving mechanism includes a lower driving part and a lower claw for hooking on the annular convex edge of the lower half core, and the lower driving part can drive the lower claw to move up and down.

In the above-mentioned core-pulling device for electrofusion pipe fittings, the two upper abutting plates can be close to or away from each other, and the two lower abutting plates can be close to or away from each other. The two upper abutting plates can be close to or away from each other, and the two lower abutting plates can be close to or away from each other, which facilitates the loading of the mold core and the electrofusion pipe fittings before core pulling, and can also be adjusted according to the diameter of the electrofusion pipe fittings.

In the above-mentioned core-pulling device for electrofusion pipe fittings, the lower sliding plate has a mounting portion extending out of the frame. The lower sliding plate is also provided with a slide rail. One end of the slide rail extends to two lower Between the abutting plates, the other end extends to the installation part, and the slide rail is slidably connected with a positioning seat that can be used to place the mold core. The design of the positioning seat and slide rail facilitates loading.

Compared with the existing technology, the core pulling device of this electrofusion pipe fitting has the following advantages:

1. The control module can control the upper driving mechanism and the lower driving mechanism to operate at different times, thereby ensuring that after the core pulling separation, the electrofusion pipe fittings are positioned vertically on the lower clamping plate, that is, the position of the electrofusion pipe fittings after each core pulling separation is the same. It is fixed, which facilitates the subsequent loading and unloading by manipulators and improves production efficiency.

2. It can be applied to the core pulling operation of electrofusion pipe fittings with different inner diameters and lengths, and has good applicability.

3. The coordinated design of the positioning seat and the slide rail makes loading materials more convenient.

Description of the drawings

Figure 1 is a perspective view of the core pulling device of the electrofusion pipe fitting.

Figure 2 is a second perspective view of the core pulling device of the electrofusion pipe fitting.

Figure 3 is a schematic structural diagram of the lower driving mechanism part.

Figure 4 is a schematic structural diagram of the upper driving mechanism part.

Figure 5 is a schematic structural diagram of the lower limiting component part.

Figure 6 is a schematic structural diagram of the lower limiting component without the lower clamping plate.

Figure 7 is a schematic structural diagram of the upper positioning component part.

Figure 8 is a schematic structural diagram of the upper positioning component without the upper clamping plate.

Figure 9 is a schematic structural diagram of the mold core and electrofusion pipe fittings before core pulling.

In the figure, 1. Frame; 1a. Column; 2. Upper driving mechanism; 2a. Upper driving part; 2b. Upper sliding plate; 2b1. Guide hole; 2c. Upper abutting plate; 2d. Upper sliding sleeve; 2e. Upper slide block; 2f, upper guide rail; 3, lower drive mechanism; 3a, lower drive part; 3b, lower sliding plate; 3b1, mounting part; 3c, lower abutment plate; 3d, lower sleeve; 3e, lower block; 3f, lower guide rail; 4, upper limit component; 4a, upper limit plate; 4a1, U-shaped slot three; 4a2, installation slot one; 4b, upper clamping plate; 4b1, U-shaped slot one; 4c, card slot one; 4d, upper guide bar; 4e, upper sliding sleeve; 5, lower limit component; 5a, lower limit plate; 5a1, U-shaped groove four; 5a2, installation groove two; 5b, lower clamping plate; 5b1, U-shaped groove two ; 5c, card slot two; 5d, lower guide bar; 5e, lower sliding sleeve; 6, control module; 7, accommodation spacing; 8, fastening components; 9, slide rail; 10, positioning seat; 11, mold core; 11a. Upper half core body; 11b. Lower half core body; 12. Electrofusion pipe fittings; 13. Guide rod.

Detailed ways

The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in Figure 1-8, the core pulling device of this electrofusion pipe fitting includes a frame 1 and a control module 6. The frame 1 includes a base, a top plate and a number of columns 1a. The base and the top plate are connected by a number of columns 1a. . The frame 1 is provided with an upper driving mechanism 2, an upper limiting component 4, a lower limiting component 5 and a lower driving mechanism 3 in order from top to bottom.

Specifically, the upper driving mechanism 2 includes an upper driving part 2a, an upper sliding plate 2b and two opposite upper abutting plates 2c. The upper driving part 2a is fixed on the top plate, and the upper sliding plate 2b has a plurality of upper sliding sleeves 2d. Several upper sliding sleeves 2d are slidably mounted on the corresponding uprights 1a. The driving end of the driving part passes through the top plate and is in contact with the upper sliding plate 2b. Fixed, the two upper abutting plates 2c are both arranged on the lower plate surface of the upper sliding plate 2b and can be close to or away from each other.

Two upper guide rails 2f are fixed on the lower surface of the upper sliding plate 2b. The two upper guide rails 2f are arranged opposite to each other. Two upper slide blocks 2e are slidably provided on the two upper guide rails 2f. The two upper guide rails 2f are also rotatably connected along their length directions. There are screw rods, and the two upper slide blocks 2e are threadedly connected to the corresponding screw rods. The two upper abutment plates 2c are respectively fixed on the two upper slide blocks 2e, and the upper surfaces of the two upper abutment plates 2c can be connected with the upper half core body. The lower end surface of the annular convex edge of 11a abuts.

The upper limit assembly 4 includes an upper limit plate 4a and an upper clamping plate 4b. The upper limit plate 4a has a plurality of upper sliding sleeves 4e, and a plurality of upper sliding sleeves 4e are slidably sleeved on the corresponding column 1a. Each column 1a is also provided with an upper sliding sleeve 4e. There is a fastening assembly 8 capable of positioning the upper sliding sleeve 4e. In this embodiment, the fastening component 8 is two clamps, and the two clamps are clamped on the upright column 1a and respectively abut against the two ends of the upper sliding sleeve 4e.

The lower surface of the upper limit plate 4a has a recessed installation groove 4a2. The bottom wall of the installation groove 4a2 is provided with a U-shaped groove 34a1. There are also two opposite installation grooves 4a2 fixed on the bottom wall of the installation groove 14a2. The L-shaped upper guide bars 4d are respectively located on both sides of the U-shaped groove 3 4a1 and form a blocking groove 4c with the edge of the U-shaped groove 3 4a1. The upper clamping plate 4b is U-shaped, and both sides of the upper clamping plate 4b are clamped into the corresponding clamping grooves 4c. The U-shaped opening of the upper clamping plate 4b forms an upper end surface for the mold core 11 to be clamped into, and the edges of the slot can be used to fuse the pipe fittings 12 The U-shaped groove one 4b1 is in contact, and the U-shaped groove one 4b1 is opposite to the U-shaped groove three 4a1. The groove width of the U-shaped groove three 4a1 is greater than the groove width of the U-shaped groove one 4b1. Guide rods 13 are also fixed on both sides of the upper limit plate 4a. There are two corresponding guide holes 2b1 on the upper sliding plate 2b. The guide rods 13 can extend upward into the corresponding guide holes 2b1.

The lower limit assembly 5 includes a lower limit plate 5a and a lower clamping plate 5b. The lower limit plate 5a has a plurality of lower sliding sleeves 5e, and a plurality of lower sliding sleeves 5e are slidably sleeved on the corresponding upright column 1a. Each upright column 1a is also provided with There is a fastening component 8 capable of positioning the lower sliding sleeve 5e. In this embodiment, the fastening component 8 is two clamps, and the two clamps are clamped on the upright column 1a and respectively abut against the two ends of the lower sliding sleeve 5e.

The upper surface of the lower limit plate 5a has a recessed installation groove 5a2. The bottom wall of the installation groove 5a2 is provided with a U-shaped groove 45a1. There are also two opposite installation grooves 5a2 fixed on the bottom wall of the installation groove 25a2. The L-shaped lower guide bar 5d and the two lower guide bars 5d are respectively located on both sides of the U-shaped groove 4 5a1 and form a retaining groove 5c between them and the edge of the U-shaped groove 4 5a1. The lower clamping plate 5b is U-shaped and both sides of the edge are clamped into the corresponding slots 25c. The U-shaped opening of the lower clamping plate 5b forms an upper end surface for the mold core 11 to be clamped into and the edge of the slot can be used to supply the fused pipe fitting 12. The U-shaped groove two 5b1 is in contact with the U-shaped groove two 5b1, which is opposite to the U-shaped groove four 5a1. The groove width of the U-shaped groove four 5a1 is greater than the groove width of the U-shaped groove two 5b1. The upper clamping plate 4b and the lower clamping plate 5b form an accommodation gap 7 capable of accommodating the electrofusion pipe fitting 12.

The lower driving mechanism 3 includes a lower driving part 3a, a lower sliding plate 3b and two opposite lower abutting plates 3c. The lower sliding plate 3b is provided with a plurality of sliding sleeves 3d, and the plurality of sliding sleeves 3d are slidably mounted on the corresponding upright column 1a. The lower driving member 3a has two and are distributed on both sides and fixed on the lower limiting plate 5a. The upper limiting plate 4a and the upper sliding plate 2b are both provided with clearance holes for the lower driving member 3a to pass through. The lower driving member 3a The driving end passes through the lower limiting plate 5a and is fixed to the lower sliding plate 3b. The two lower abutting plates 3c are provided on the upper surface of the lower sliding plate 3b and can be moved closer to or farther away from each other. Both the upper driving member 2a and the lower driving member 3a are electrically connected to the control module 6, and the control module 6 can control the upper driving member 2a and the lower driving member 3a to run at different times. In this embodiment, the upper driving part 2a and the lower driving part 3a are both cylinders, and the control module 6 is a central control panel.

Two lower guide rails 3f are fixed on the upper surface of the lower sliding plate 3b. The two lower guide rails 3f are arranged oppositely. The two lower guide rails 3f are provided with two sliding slides 3e. The two lower guide rails 3f are also rotatably connected along their length directions. There are screw rods, and the two lower sliders 3e are threadedly connected to the corresponding screw rods. The two lower abutment plates 3c are respectively fixed on the two lower sliders 3e, and the upper surfaces of the two lower abutment plates 3c can be connected with the lower half core body. The lower end surface of the annular convex edge of 11b abuts. The lower sliding plate 3b has a mounting portion 3b1 extending out of the frame 1. The lower sliding plate 3b is also provided with a slide rail 9. One end of the slide rail 9 extends between the two lower abutment plates 3c, and the other end extends to the installation part. At the portion 3b1, a positioning seat 10 for placing the mold core 11 is slidably connected to the slide rail 9.

When the core pulling device is in operation, first slide the positioning seat 10 to the mounting part 3b1, and then take out the cooled electrofusion pipe fitting 12 from the mold and place it on the positioning seat 10 together with the mold core 11. Slide the mounting base to be between the two lower abutment plates 3c. At this time, the mold core 11 is stuck into the U-shaped groove one 4b1 and the second U-shaped groove 5b1. The annular convex edge of the upper half core body 11a and the lower half core body The annular convex edge of 11b can respectively abut the upper plate surface of the upper abutment plate 2c and the lower plate surface of the lower abutment plate 3c. The electrofusion pipe fitting 12 on the mold core 11 is located within the accommodation distance 7. The control module 6 controls the operation of the upper driving member 2a to drive the upper half core body 11a to move upward, and the upper end surface of the electrofusion pipe fitting 12 abuts the upper clamping plate 4b, so that the upper half core body 11a and the electrofusion pipe fitting 12 are separated. Then the control module 6 controls the operation of the lower driving member 3a, driving the lower half core body 11b to move downward, and the electrofusion pipe fitting 12 then abuts against the lower abutment plate 3c, so that the lower half core body 11b and the electrofusion pipe fitting 12 are separated. After separation, the electrofusion pipe fitting 12 stands vertically on the lower abutment plate 3c. That is to say, by setting up the control module 6 in this application, the upper driving mechanism 2 and the lower driving mechanism 3 can be controlled to run at different times, thereby ensuring that after the core pulling is separated, the electrofusion pipe fitting 12 is positioned vertically on the lower limiting component 5, that is, every time the core is pulled After separation, the positions of the electrofusion pipe fittings 12 are fixed, which facilitates the subsequent unloading of the unloading robot and improves production efficiency.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or additions to the described specific embodiments or substitute them in similar ways, but this will not deviate from the spirit of the present invention or exceed the definition of the appended claims. range.

Although this article uses terms such as the housing frame 1, the upper driving mechanism 2, the upper driving part 2a, the upper sliding plate 2b, and the guide hole 2b1, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

A core-pulling device for electrofusion pipe fittings, including a frame (1). The frame (1) is provided with an upper driving mechanism (2) capable of driving the upper half core body (11a) of the mold core (11) to move upward. ) and a lower driving mechanism (3) capable of driving the lower half core body (11b) of the mold core (11) downwards. The characteristic is that the frame (1) is also provided with a device that can be used to communicate with the mold core (11) respectively. The upper limiting component (4) and the lower limiting component (5) are formed between the upper limiting component (4) and the lower limiting component (5) to accommodate the two end faces of the electrofusion pipe fitting (12). The accommodation spacing (7) of the electrofusion pipe fittings (12) and the size of the accommodation spacing (7) are adjustable.
The core-pulling device for electrofusion pipe fittings according to claim 1, characterized in that the upper limit assembly (4) includes an upper limit plate (4a) and an upper clamping plate (4b), and the upper clamping plate (4b) 4b) is detachably connected to the upper limit plate (4a). The upper clamping plate (4b) is provided with a groove for the mold core (11) to snap into and the edge of the groove can be used to abut the upper end surface of the fused pipe fitting (12). U-shaped groove one (4b1), the lower limiter assembly (5) includes a lower limiter plate (5a) and a lower clamping plate (5b), the lower clamping plate (5b) is detachably connected to the lower limiter plate (5b) 5a), the lower clamping plate (5b) is provided with a second U-shaped groove (5b1) for the mold core (11) to be clamped into, and the edge of the groove can be used to abut the lower end face of the fused pipe fitting (12), so The upper limit plate (4a) and/or the lower limit plate (4b) can slide up and down relative to the frame (1) and can be positioned after sliding.
The core-pulling device for electrofusion pipe fittings according to claim 2, characterized in that the upper limit plate (4a) has two oppositely arranged clamping slots (4c), and the upper clamping plate (4b) is in the shape of U-shaped and both sides of the edge snap into the corresponding slot one (4c). The upper limit plate (4a) is provided with a U-shaped slot three (4a1) opposite to the U-shaped slot one (4b1). The groove width of the third groove (4a1) is larger than the groove width of the U-shaped groove one (4b1). The lower limiting plate (5a) has two oppositely arranged clamping slots (5c). The lower clamping plate (5b) is U-shaped and its two sides are inserted into the corresponding slots (5c). The lower limit plate (5a) is provided with a fourth U-shaped slot (5a1) opposite to the second U-shaped slot (5b1). , the groove width of the fourth U-shaped groove (5a1) is greater than the groove width of the second U-shaped groove (5b1).
The core-pulling device for electrofusion pipe fittings according to claim 3, characterized in that the lower plate surface of the upper limit plate (4a) has a concave mounting groove one (4a2), and the U-shaped groove three ( 4a1) is provided on the bottom wall of the installation slot one (4a2). Two upper guide bars (4d) arranged oppositely and having an L-shaped cross section are also fixed on the bottom wall of the installation slot one (4a2). The strips (4d) are respectively located on both sides of the U-shaped groove three (4a1) and form the above-mentioned clamping groove one (4c) with the edge of the U-shaped groove three (4a1). The upper plate of the lower limiting plate (5a) The surface has a concave mounting groove two (5a2), and the U-shaped groove four (5a1) is opened on the bottom wall of the mounting groove two (5a2). The bottom wall of the mounting groove two (5a2) is also fixed with Two opposite lower guide bars (5d) with L-shaped cross-sections are arranged. The two lower guide bars (5d) are respectively located on both sides of the U-shaped groove 4 (5a1) and are formed between the edges of the U-shaped groove 4 (5a1). The above-mentioned card slot two (5c).
The core-pulling device for electrofusion pipe fittings according to claim 1 or 2 or 3 or 4, characterized in that the core-pulling device further includes a device capable of controlling the upper driving mechanism (2) and the lower driving mechanism (3) to operate at different times. Control module(6).
The core-pulling device for electrofusion pipe fittings according to claim 5, characterized in that the upper driving mechanism (2) includes an upper driving part (2a) provided on the frame (1) and an upper driving member (2a) slidably connected to the frame (1). 1) The upper sliding plate (2b) on the upper sliding plate (2b), the upper driving member (2a) is connected to the upper sliding plate (2b) and can drive the upper sliding plate (2b) to move up and down, and the lower part of the upper sliding plate (2b) The board surface is provided with two opposite upper abutment plates (2c), and the upper driving member (2a) is electrically connected to the control module (6).
The core-pulling device for electrofusion pipe fittings according to claim 6, characterized in that the lower driving mechanism (3) includes a lower driving part (3a) and a lower sliding plate (3b) slidably connected to the frame (1). ), the lower driving member (3a) is connected to the lower sliding plate (3b) and can drive the lower sliding plate (3b) to move up and down. The upper surface of the lower sliding plate (3b) is provided with two oppositely arranged The lower abutting plate (3c), the lower driving member (3a) is electrically connected to the control module (6).
The core-pulling device for electrofusion pipe fittings according to claim 7, characterized in that the two upper abutting plates (2c) can approach or move away from each other, and the two lower abutting plates (3c) can approach or move away from each other.
The core-pulling device for electrofusion pipe fittings according to claim 8, characterized in that the lower sliding plate (3b) has a mounting portion (3b1) extending out of the frame (1), and the lower sliding plate (3b) 3b) is also provided with a slide rail (9). One end of the slide rail (9) extends between the two lower abutment plates (3c), and the other end extends to the mounting portion (3b1). The slide rail (9) 9) A positioning seat (10) that can be used to place the mold core (11) is slidably connected to the upper part.