CN220638772U - Three-way pipe injection mold - Google Patents
Three-way pipe injection mold Download PDFInfo
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- CN220638772U CN220638772U CN202322285409.XU CN202322285409U CN220638772U CN 220638772 U CN220638772 U CN 220638772U CN 202322285409 U CN202322285409 U CN 202322285409U CN 220638772 U CN220638772 U CN 220638772U
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- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 238000001746 injection moulding Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010079 rubber tapping Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The utility model provides a three-way pipe injection mold which comprises an upper mold assembly and a lower mold assembly, wherein a lower mold cavity is formed in the top surface of the lower mold assembly, four groups of core-pulling sliding blocks are connected to the top surface of the lower mold assembly in a sliding manner, the four groups of core-pulling sliding blocks surround the periphery of the lower mold cavity in a cross shape, a motor is fixedly arranged on one side of the lower mold assembly, a large gear is movably arranged below the core-pulling sliding blocks close to one side of the motor, an output shaft of the motor is connected with the large gear, a tailstock is fixedly arranged at the rear end of the core-pulling sliding block close to one side of the motor, a nut seat is fixedly arranged on one side of the tailstock, a tooth core is connected with threads of the nut seat, a small gear is fixedly arranged in the middle of the tooth core, and the small gear is meshed with the large gear. When the die is assembled and injection molded, the tooth core is positioned in the lower die cavity, the motor drives the tooth core to rotate through gear transmission during the injection molding and die separation, the tooth core retreats while rotating and tapping along with the increase of the die separation distance until completely exiting the lower die cavity, and the internal thread of an injection molding piece is processed during die separation, so that the production efficiency is high.
Description
Technical Field
The utility model belongs to the field of injection molds, and particularly relates to a three-way pipe injection mold.
Background
The three-way plastic pipe fitting is a common plastic pipe fitting and is generally processed by adopting an injection mold, and according to the product structure and appearance analysis, the three-way plastic pipe fitting is generally in a vertical structure during injection molding, namely, two straight pipe orifices are horizontally placed, one straight pipe orifice of the three-way pipe is downward, and during demolding, the two straight pipe orifices firstly loose core, and one pipe orifice of the three-way pipe is ejected by a thimble.
In connection with other pipe fittings, hot melt connection is generally adopted, and sometimes screw connection is also required, so that a three-way plastic pipe fitting with internal screw threads is required. Generally, after injection molding, it is necessary to tap the three-way plastic pipe by a lathe in order to machine an internal thread. Therefore, injection molding and tapping are required to be performed in two working procedures, the processing efficiency is low, and the input cost is high.
Disclosure of Invention
In view of the drawbacks noted in the background art, an object of the present utility model is to provide a tee injection mold capable of machining female threads at the time of mold closing.
In order to achieve the above object, the technical scheme of the present utility model is as follows:
the three-way pipe injection mold comprises an upper mold assembly and a lower mold assembly, wherein an upper mold cavity is formed in the bottom surface of the upper mold assembly, a lower mold cavity spliced with the upper mold cavity is formed in the top surface of the lower mold assembly, an injection molding opening is formed in the top surface of the upper mold assembly, and the injection molding opening is connected with the upper mold cavity through an injection molding channel; four groups of core-pulling sliding blocks are slidably connected to the top surface of the lower die assembly, the four groups of core-pulling sliding blocks surround the periphery of the lower die cavity in a cross shape, four groups of inclined guide posts are fixed to the bottom surface of the upper die assembly, the inclined guide posts movably penetrate through the corresponding core-pulling sliding blocks, a motor is fixedly arranged on one side of the lower die assembly, a large gear is arranged below the core-pulling sliding blocks close to one side of the motor, the gear wheel with lower mould assembly movable mounting, the output shaft of motor with gear wheel connection installs, is close to the rear end fixed mounting of the slider of loosing core of motor one side has the tailstock, tailstock one side fixed mounting has the nut seat, nut seat threaded connection has the tooth core, tooth core front end stretches into lower die cavity, tooth core middle part fixed mounting has the pinion, the pinion with gear wheel meshing transmission.
As a preferable technical scheme, an end seat is fixedly arranged at the front end of the core-pulling sliding block close to one side of the motor, a shaft sleeve is fixedly inlaid in the end seat, and the dental core movably penetrates through the shaft sleeve.
As a preferable technical scheme, a positioning block is arranged on one side of the pinion facing the shaft sleeve, and a limit flange is arranged on one side of the shaft sleeve facing the pinion.
As a preferable technical scheme, the shaft sleeve is fixed in the end seat through two groups of bolts, openings are respectively formed in two sides of the shaft sleeve, two groups of pin holes are formed in the top surface of the end seat, and the bolts are inserted into the openings along the pin holes.
As a preferable technical scheme, the upper die cavity comprises a first upper die cavity and a second upper die cavity, the upper die cavity is communicated with the second upper die cavity through a first node cavity communicated with the injection molding channel, the lower die cavity comprises a first lower die cavity and a second lower die cavity, and the first lower die cavity is communicated with the second lower die cavity through a second node cavity.
As an optimized technical scheme, the front end of the dental core extends into the first lower die cavity, and core pulling sliding blocks on two sides of the first lower die cavity are respectively fixed with a core shaft.
After the technical scheme is adopted, the utility model has the beneficial effects that:
when the die is assembled and injection molded, the tooth core is positioned in the lower die cavity, the motor drives the tooth core to rotate through gear transmission during die separation of injection molding, and the inclined guide pillar pushes the core-pulling sliding block to move backwards along with the increase of the die separation distance, so that the tooth core can rotate and tap and then retreat until the tooth core completely retreats from the lower die cavity, the internal thread of an injection molding piece is processed during die separation, and the production efficiency is high.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the lower die assembly;
FIG. 3 is a schematic view of the installation of a dental core;
FIG. 4 is a schematic view of the structure of a dental core;
fig. 5 is a schematic structural view of the sleeve.
In the figure: 1. the upper die assembly, 11, an injection molding port, 12, an inclined guide post, 2, a lower die assembly, 21, a motor, 211, a large gear, 22, a first lower die cavity, 23, a second lower die cavity, 24, a core pulling slide block, 241, a tooth core, 2411, a small gear, 2412, a positioning block, 242, a core shaft, 243, a tailstock, 2431, a nut seat, 244, an end seat, 2441, a pin hole, 2442, a bolt, 2443, a shaft sleeve, 2444 and a limiting flange.
Detailed Description
Features and exemplary embodiments of various aspects of the present utility model will be described in detail below, and in order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the utility model and are not configured to limit the utility model. It will be apparent to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model.
The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the utility model. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
The following describes in detail the technical solutions provided by the embodiments of the present utility model with reference to fig. 1 to 5.
The embodiment provides a three-way pipe injection mold, which comprises an upper mold assembly 1 and a lower mold assembly 2. The bottom surface of the upper die assembly 1 is provided with an upper die cavity, the top surface of the lower die assembly 2 is provided with a lower die cavity, the top surface of the upper die assembly 1 is provided with an injection molding opening 11, and the injection molding opening 11 is connected with the upper die cavity through an injection molding channel.
The upper die cavity comprises a first upper die cavity and a second upper die cavity, and the upper die cavity is communicated with the second upper die cavity through a first node cavity communicated with the injection molding channel. The lower die cavity comprises a first lower die cavity 22 spliced with the first upper die cavity and a second lower die cavity 23 spliced with the second upper die cavity, and the first lower die cavity 22 is communicated with the second lower die cavity 23 through a second node cavity spliced with the first node cavity. The first upper die cavity and the first lower die cavity 22 are spliced to form a tube cavity for forming the three-way tube, the second upper die cavity and the second lower die cavity 23 are spliced to form a valve rod cavity for forming the valve rod, and the die can be used for forming two different injection molding pieces at one time, so that the production efficiency is greatly improved.
Four groups of core-pulling sliding blocks 24 are slidably connected to the top surface of the lower die assembly 2, the four groups of core-pulling sliding blocks 24 surround the periphery of the lower die cavity in a cross shape, four groups of inclined guide posts 12 are fixed to the bottom surface of the upper die assembly 1, and the inclined guide posts 12 movably penetrate through the corresponding core-pulling sliding blocks 24. Specifically, three groups of core-pulling sliding blocks 24 surround the first lower die cavity 22 in a T shape, the core-pulling sliding blocks 24 on two sides of the first lower die cavity 22 are respectively fixed with a mandrel 242, and the other core-pulling sliding block 24 is located on one side of the valve rod cavity.
A motor 21 is fixedly arranged on one side of the lower die assembly 2, a large gear 211 is arranged below a core pulling sliding block 24 on one side close to the motor 21, the large gear 211 is movably arranged on the lower die assembly 2, and an output shaft of the motor 21 is connected with the large gear 211. The rear end of the core-pulling sliding block 24 close to one side of the motor 21 is fixedly provided with a tailstock 243, one side of the tailstock 243 is fixedly provided with a nut seat 2431, the nut seat 2431 is in threaded connection with a tooth core 241, the front end of the tooth core 241 extends into the first lower die cavity 22, and the front end of the tooth core 241 is provided with external threads for tapping. A pinion gear 2411 is fixedly arranged in the middle of the tooth core 241, and the pinion gear 2411 is meshed with the large gear 211 for transmission.
The front end of the core-pulling sliding block 24 close to one side of the motor 21 is fixedly provided with an end seat 244, the end seat 244 is fixedly embedded with a shaft sleeve 2443, and the tooth core 241 movably penetrates through the shaft sleeve 2443. The shaft sleeve 2443 is fixed in the end seat 244 through two groups of bolts 2442, two sides of the shaft sleeve 2443 are respectively provided with a notch, the top surface of the end seat 244 is provided with two groups of pin holes 2441, and the bolts 2442 are inserted into the notches along the pin holes 2441. The shaft sleeve 2443 and the nut seat 2431 support the tooth core 241 at two points and one line, so that stability in the tapping process is enhanced. A positioning block 2412 is arranged on one side of the pinion 2411 facing the shaft sleeve 2443, and a limiting flange 2444 is arranged on one side of the shaft sleeve 2443 facing the pinion 2411. During the movement of the pinion 2411 following the tooth core 241, the limiting flange 2444 of the sleeve 2443 is used to abut against the positioning block 2412 to prevent the pinion 2411 from moving continuously, thereby limiting the maximum displacement of the tooth core 241.
During die assembly and injection molding, the tooth core 241 is in situ in the pipe cavity, and during die separation after injection molding, the motor 21 drives the tooth core 241 to rotate through meshing transmission of the pinion 2411 and the large gear 211, and along with the increase of the die separation distance, the inclined guide pillar 12 pushes the core-pulling sliding block 24 to move backwards, so that the tooth core 241 retreats while rotating and tapping until completely retreating from the pipe cavity, and the internal thread of the three-way pipe injection molding piece is processed during die separation, so that the production efficiency is high.
In accordance with the above embodiments of the utility model, these embodiments are not exhaustive of all details, nor are they intended to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The three-way pipe injection mold comprises an upper mold assembly (1) and a lower mold assembly (2), wherein an upper mold cavity is formed in the bottom surface of the upper mold assembly (1), a lower mold cavity spliced with the upper mold cavity is formed in the top surface of the lower mold assembly (2), an injection molding opening (11) is formed in the top surface of the upper mold assembly (1), and the injection molding opening (11) is connected with the upper mold cavity through an injection molding channel; the method is characterized in that: four groups of core-pulling sliding blocks (24) are slidably connected to the top surface of the lower die assembly (2), the four groups of core-pulling sliding blocks (24) are arranged around the lower die cavity in a cross mode, four groups of inclined guide posts (12) are fixed to the bottom surface of the upper die assembly (1), the inclined guide posts (12) movably penetrate through the corresponding core-pulling sliding blocks (24), a motor (21) is fixedly installed on one side of the lower die assembly (2), a large gear (211) is arranged below the core-pulling sliding blocks (24) and close to one side of the motor (21), the large gear (211) is movably installed with the lower die assembly (2), an output shaft of the motor (21) is connected with the large gear (211) and installed close to the rear end of the core-pulling sliding blocks (24) on one side of the motor (21), a nut seat (2431) is fixedly installed on one side of the tail seat (243), a tooth core (241) is connected with a tooth core (241) in a threaded mode, the front end of the tooth core (241) extends into the lower die cavity (241), and the small gear (2411) is fixedly meshed with the large gear (2411).
2. The tee injection mold of claim 1, wherein: an end seat (244) is fixedly arranged at the front end of the core pulling sliding block (24) close to one side of the motor (21), a shaft sleeve (2443) is fixedly inlaid in the end seat (244), and the dental core (241) movably penetrates through the shaft sleeve (2443).
3. The tee injection mold of claim 2, wherein: one side of the pinion (2411) facing the shaft sleeve (2443) is provided with a positioning block (2412), and one side of the shaft sleeve (2443) facing the pinion (2411) is provided with a limiting flange (2444).
4. A tee injection mold as set forth in claim 3, wherein: the shaft sleeve (2443) is fixed in the end seat (244) through two groups of bolts (2442), openings are respectively formed in two sides of the shaft sleeve (2443), two groups of pin holes (2441) are formed in the top surface of the end seat (244), and the bolts (2442) are inserted into the openings along the pin holes (2441).
5. The tee injection mold of claim 1, wherein: the upper die cavity comprises a first upper die cavity and a second upper die cavity, the upper die cavity is communicated with the second upper die cavity through a first node cavity communicated with the injection molding channel, the lower die cavity comprises a first lower die cavity (22) and a second lower die cavity (23), and the first lower die cavity (22) is communicated with the second lower die cavity (23) through a second node cavity.
6. The three-way pipe injection mold of claim 5, wherein: the front end of the dental core (241) stretches into the first lower die cavity (22), and core pulling sliding blocks (24) on two sides of the first lower die cavity (22) are respectively fixed with a core shaft (242).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322285409.XU CN220638772U (en) | 2023-08-24 | 2023-08-24 | Three-way pipe injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322285409.XU CN220638772U (en) | 2023-08-24 | 2023-08-24 | Three-way pipe injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220638772U true CN220638772U (en) | 2024-03-22 |
Family
ID=90286285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322285409.XU Active CN220638772U (en) | 2023-08-24 | 2023-08-24 | Three-way pipe injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220638772U (en) |
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2023
- 2023-08-24 CN CN202322285409.XU patent/CN220638772U/en active Active
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| GR01 | Patent grant |