CN211344014U - Sealing joint of hot runner heating wire - Google Patents
Sealing joint of hot runner heating wire Download PDFInfo
- Publication number
- CN211344014U CN211344014U CN201921355705.XU CN201921355705U CN211344014U CN 211344014 U CN211344014 U CN 211344014U CN 201921355705 U CN201921355705 U CN 201921355705U CN 211344014 U CN211344014 U CN 211344014U
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- sealing joint
- heating wire
- sealing
- conical head
- hot runner
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Abstract
The utility model discloses a sealing joint of a hot runner heating wire, which comprises a heating wire, an electric wire and a sealing joint, wherein one end of the heating wire penetrates into the sealing joint, the electric wire penetrates into the sealing joint and is connected with the heating wire, a filler is arranged in the sealing joint, a sealing plug is arranged at one end of the sealing joint, which is positioned at one end of the electric wire, a self-locking thread is arranged on the outer circumferential surface of one end of the sealing joint, which is close to the heating wire, a rotating block is connected with the sealing joint through a thread, a clamping sleeve is coaxially arranged at one end of the sealing joint, which is close to the heating wire, the clamping sleeve comprises a first conical head, the cross section of the first conical head is reduced towards the direction far away from the sealing joint, a pushing block which is coaxially arranged with the clamping sleeve through conical surface matching so as to enable the first conical head to deform and clamp, the heating wire is uniformly clamped, and the heating wire is fixed through self-locking threads, so that the connection is stable, and the sealing performance is good.
Description
Technical Field
The utility model relates to a hot runner accessory technical field, more specifically say, it relates to a sealing joint of hot runner heater.
Background
The interior of a traditional double-end pipe joint is generally filled with magnesium oxide powder or glass cement, and a sealing plug is arranged to achieve the sealing effect. Referring to fig. 2, a heating wire 1 passes through a sealing joint 3, a sealing filler 4 is arranged in the sealing joint, the heating wire 1 passes through the sealing joint 3 and is connected with an electric wire 2 passing through the other end of the sealing joint 3, a sealing plug 5 is arranged at one end of the sealing joint 3, and all components are installed and then are pressed by a punching machine to be sealed tightly in the sealing joint.
However, in the manner of pressing and sealing by a punch, because of uneven stress, uneven sealing between the sealing joint and the heating wire, and often a gap exists, after the double-end tube heating wire is used for a long time, the sealing performance of the heating wire is worse, and because in the using process, the mold sometimes has the phenomena of water leakage and oil leakage, if water leakage occurs in the sealing joint, the joint is easily damaged, and potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a sealing joint of hot runner heater, its characteristics that have the leakproofness good.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a sealing joint of hot runner heater, includes heater, electric wire and sealing joint, heater one end penetrates in the sealing joint, the electric wire penetrates in the sealing joint and is connected with the heater from the other end, be provided with the filler in the sealing joint, sealing joint is located electric wire one end and is provided with sealing plug, its characterized in that: the self-locking heating wire clamping device is characterized in that self-locking threads are arranged on the outer circumferential surface of one end, close to the heating wire, of the sealing joint, a rotating block is connected with the sealing joint in a threaded mode, a clamping sleeve for the heating wire to penetrate through is coaxially arranged at one end, close to the heating wire, of the sealing joint, the clamping sleeve comprises a first conical head, the cross section of the first conical head is reduced towards the direction far away from the sealing joint, and a pushing block which is matched with the clamping sleeve through a conical surface to enable the first conical head to deform and clamp the heating wire through rotation.
Preferably, the inner circumferential surface of the first conical head, which is attached to the heating wire, is provided with a first sealing rubber ring.
Preferably, the other end of the jacket opposite to the first conical head is provided with a second conical head which is abutted against the hole wall of the sealing joint, and the cross section of the second conical head is reduced in a direction away from the first conical head.
Preferably, the outer circumferential surface of the second conical head is provided with a second sealing rubber ring which abuts against the inner wall of the sealing joint.
Preferably, the rotary block is coaxially provided with a prismatic rotary part.
Preferably, the outer peripheral surface of the sealing joint comprises at least two planes of symmetry about a central axis.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. after the heating wire penetrates through the clamping sleeve and is connected into the sealing joint, the rotating block is rotated to enable the conical surface of the pushing block to act on the first conical head of the clamping sleeve, the clamping sleeve is static, the clamping sleeve deforms through the movement of the pushing block, the heating wire is uniformly clamped, and the heating wire is fixed through self-locking threads, so that the connection is stable and the sealing performance is good;
2. the other end of the jacket is a second conical end, the second conical end is tightly propped against the inner wall of the sealing joint through the pushing of the pushing block, the two ends are sealed simultaneously, the sealing performance is further improved, and the assembly is simple; the first conical head and the second conical head respectively increase the sealing performance through the first sealing rubber ring and the second sealing rubber ring, so that the stress is more uniform, and the sealing performance is maintained after long-term use;
3. the rotary block is provided with a rotating part, the peripheral surface of the sealing joint is provided with two planes, so that the functions of positioning and applying force in the tightening process are facilitated, and the assembling difficulty is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
FIG. 2 is a schematic view of a sealing joint structure in the prior art.
In the figure: 1. a heater; 2. an electric wire; 3. sealing the joint; 31. self-locking threads; 32. rotating the block; 321. a push block; 322. a rotating part; 33. a jacket; 331. a first conical head; 3311. a first sealing rubber ring; 332. a second conical head; 3321. a second sealing rubber ring; 34. a plane; 4. a filler; 5. and (4) sealing the plug.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a sealing joint of hot runner heater, refer to fig. 1, it includes heater 1, electric wire 2 and sealing joint 3, in 1 one end of heater penetrated sealing joint 3, electric wire 2 penetrated sealing joint 3 in and passed through the terminal with heater 1 from the other end and is connected, be provided with filler 4 in the sealing joint 3, filler 4 is glass glue or magnesium oxide powder, sealing joint 3 is located 2 one end of electric wire and is provided with sealing plug 5, sealing plug 5 is the teflon material.
The outer circumferential surface of one end, close to the heating wire 1, of the sealing joint 3 is provided with a self-locking thread 31, the sealing joint 3 is in threaded connection with a rotary block 32, one end, close to the heating wire 1, of the sealing joint 3 is coaxially provided with a jacket 33 for the heating wire 1 to penetrate through, the jacket 33 comprises a first conical head 331, the cross section of the first conical head 331 is reduced towards the direction far away from the sealing joint 3, the rotary block 32 is coaxially provided with a push block 321, the push block 321 is located at the end of the rotary block 32 and is annular, the inner circumference of the push block 321 is provided with a conical surface, the push block 321 is matched with the jacket 33 through the conical surface, the push block 321 is moved through rotating the rotary block 32, the push block 321 extrudes the first conical head 331 through the conical surface action, the first conical head.
The other end of the jacket 33 opposite to the first conical head 331 is provided with a second conical head 332 which abuts against the hole wall of the sealing joint 3, the cross section of the second conical head 332 is reduced towards the direction away from the first conical head 331, and the second conical head 332 abuts against the hole wall of the sealing joint 3 through the action of the push block 321, so that simultaneous sealing at two ends is ensured, the sealing effect is further improved, and the assembly is simple and convenient.
The inner circumferential surface of the first conical head 331, which is attached to the heating wire 1, is provided with a first sealing rubber ring 3311, the outer circumferential surface of the second conical head 332 is provided with a second sealing rubber ring 3321 which abuts against the inner wall of the sealing joint 3, the first sealing rubber ring and the second sealing rubber ring are made of fluorine rubber materials, and have the characteristics of high temperature resistance and good elasticity, and after the first sealing rubber ring and the second sealing rubber ring are installed, the stress is more uniform, and the sealing performance can be maintained after long-term use.
The rotary block 32 is coaxially provided with a prismatic rotating part 322, so that the rotary block 32 can be rotated by a tool, the peripheral surface of the sealing joint 3 comprises at least two planes 34 which are symmetrical about a central shaft and are used for rotating the rotary part 322 in a matching way, and the rotary part 322 is driven to rotate by a wrench after the two planes 34 are clamped by the tool, so that the labor intensity is saved, and the assembly is facilitated.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a sealing joint of hot runner heater, includes heater, electric wire and sealing joint, heater one end penetrates in the sealing joint, the electric wire penetrates in the sealing joint and is connected with the heater from the other end, be provided with the filler in the sealing joint, sealing joint is located electric wire one end and is provided with sealing plug, its characterized in that: the self-locking heating wire clamping device is characterized in that self-locking threads are arranged on the outer circumferential surface of one end, close to the heating wire, of the sealing joint, a rotating block is connected with the sealing joint in a threaded mode, a clamping sleeve for the heating wire to penetrate through is coaxially arranged at one end, close to the heating wire, of the sealing joint, the clamping sleeve comprises a first conical head, the cross section of the first conical head is reduced towards the direction far away from the sealing joint, and a pushing block which is matched with the clamping sleeve through a conical surface to enable the first conical head to deform and clamp the heating wire through rotation.
2. The sealing joint of a hot runner heater according to claim 1, wherein: and a first sealing rubber ring is arranged on the inner circumferential surface of the first conical head, which is attached to the heating wire.
3. The sealing joint of a hot runner heater according to claim 1, wherein: the other end of the jacket, which is opposite to the first conical head, is provided with a second conical head which is abutted against the hole wall of the sealing joint, and the cross section of the second conical head is reduced towards the direction away from the first conical head.
4. The sealing joint of a hot runner heater according to claim 3, wherein: and a second sealing rubber ring abutting against the inner wall of the sealing joint is arranged on the outer circumferential surface of the second conical head.
5. The sealing joint of a hot runner heater according to claim 1, wherein: the rotary block is coaxially provided with a prismatic rotary part.
6. The sealing joint of a hot runner heater according to claim 5, wherein: the outer peripheral surface of the sealing joint includes two planes that are symmetrical about a central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355705.XU CN211344014U (en) | 2019-08-20 | 2019-08-20 | Sealing joint of hot runner heating wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355705.XU CN211344014U (en) | 2019-08-20 | 2019-08-20 | Sealing joint of hot runner heating wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211344014U true CN211344014U (en) | 2020-08-25 |
Family
ID=72102696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921355705.XU Active CN211344014U (en) | 2019-08-20 | 2019-08-20 | Sealing joint of hot runner heating wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211344014U (en) |
-
2019
- 2019-08-20 CN CN201921355705.XU patent/CN211344014U/en active Active
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