CN221392001U - Forming injection mold of pump head cover - Google Patents
Forming injection mold of pump head cover Download PDFInfo
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- CN221392001U CN221392001U CN202322938710.6U CN202322938710U CN221392001U CN 221392001 U CN221392001 U CN 221392001U CN 202322938710 U CN202322938710 U CN 202322938710U CN 221392001 U CN221392001 U CN 221392001U
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Abstract
The utility model belongs to the technical field of injection molds, and particularly relates to a pump head cover molding injection mold, which comprises a movable mold part structure and a fixed mold part structure; the fixed die part structure comprises a fixed die plate at the lower end, wherein a cavity is arranged on the fixed die plate and is used for forming the outer peripheral surface of the pump head cover and the upper side surface of the connecting pipe; the movable mould part structure comprises a side core pulling mechanism which is arranged corresponding to the cavity, and the side core pulling mechanism comprises a core bar for forming an inner hole of a connecting pipe on the pump head cover; the movable mould part structure comprises a male mould column arranged corresponding to the cavity, wherein the upper end surface of the male mould column is provided with a forming concave cavity and is used for forming a pump head cover mounting tube and external threads; the male die column comprises a male die core. The utility model has the characteristics of simpler and more reasonable structural design, more convenient demoulding and more stable demoulding quality.
Description
Technical Field
The utility model belongs to the technical field of injection molds, and particularly relates to a pump head cover molding injection mold.
Background
The injection mold is a tool for producing plastic products; is also a tool for endowing plastic products with complete structure and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification.
As shown in fig. 1 and 2, which are schematic structural diagrams of a pump head cover, the pump head cover comprises a cover body 1 with an open lower end, a mounting pipe 2 which is arranged in a downward protruding way and extends to the lower part of the open end of the cover body is arranged at the center of the bottom surface of the inner side of the cover body, and an external thread 3 is arranged on the outer circumferential surface of the lower end of the mounting pipe; the cover body is provided with a mounting pipe, and the cover body is provided with a connecting pipe 4 which is positioned at the outer side of the cover body and is arranged along the radial direction of the cover body, and the inner end of the connecting pipe penetrates through the side wall of the cover body and is communicated with the inner end of the mounting pipe.
When the pump head cover is molded by adopting an injection mold, the external threads and the connecting holes are needed to be molded on the pump head cover. After the external threads and the connecting holes are respectively formed by the cores, the external threads and the connecting holes cannot be forcibly demoulded in order to ensure the quality of the external threads and the connecting holes. The existing mold structure generally drives the mold core to rotate to finish demolding of the external threads, and adopts side core pulling to finish demolding of the connecting holes. But in the existing structure, the structural design of the external thread demoulding part for driving the core to rotate is unreasonable, so that the demoulding efficiency is poor, and the demoulding quality stability is poor. The design of the demolding part of the connecting hole is unreasonable for driving the side drawing of the mold core, so that the mold is complex in design and difficult to manufacture, and the demolding efficiency is also influenced.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: how to design a structural design is more simple reasonable, can make things convenient for the drawing of patterns more, the shaping injection mold of pump head cap that drawing of patterns quality is more stable.
In order to solve the technical problems, the utility model adopts the following technical scheme: a molding injection mold of a pump head cover comprises a movable mold part structure and a fixed mold part structure; the fixed die part structure comprises a fixed die plate at the lower end, wherein a cavity is arranged on the fixed die plate and is used for forming the outer peripheral surface of the pump head cover and the upper side surface of the connecting pipe; the movable mould part structure comprises a side core pulling mechanism which is arranged corresponding to the cavity, and the side core pulling mechanism comprises a core bar for forming an inner hole of a connecting pipe on the pump head cover; the movable mould part structure comprises a male mould column arranged corresponding to the cavity, wherein the upper end surface of the male mould column is provided with a forming concave cavity and is used for forming a pump head cover mounting tube and external threads; the method is characterized in that; the male die column comprises a male die core, the upper end face of the male die core is provided with a first molding concave cavity and is used for molding an external thread on a pump head cover, the upper end of the male die core is sleeved with a male die sleeve with the upper end being in sealing arrangement, and the upper end face of the male die sleeve is provided with a second molding concave cavity and is used for molding an upper section of a mounting pipe on the pump head cover; a male die rod is further arranged in an inner hole formed in the male die core, and the upper end of the male die rod is used for forming an inner hole of the mounting tube; the movable die part structure further comprises a rotation driving part structure, and the rotation driving part structure is in transmission connection with the male die core and can drive the male die core to rotate and release the die.
Like this, among the above-mentioned mould structure, through constitute terrace die post design by protruding mold core, protruding die sleeve and punch stem, but and the punch core respectively with the movable fit during punch sleeve and punch stem, when accomplishing the drawing of patterns of external screw thread, adopt to rotate the drive part structure solitary drive punch core and rotate, accomplish the drawing of patterns to the external screw thread, protruding die sleeve and punch stem are non-rotating, this just makes it can more conveniently drive the punch core and rotate to make the quality of mounting tube upper segment and mounting tube hole on the pump head lid of protruding die sleeve and punch stem shaping respectively better, improve the quality of work piece. And the male die column is more reasonable in design, can be more convenient to process and manufacture, can be replaced in a targeted manner in the use process of the die, and reduces the use cost of the die.
As optimization, the movable mould part structure further comprises a guide sleeve correspondingly arranged at the lower end of the male mould core, an inner thread is arranged in an inner hole of the guide sleeve, an outer thread is arranged at the lower end of the male mould core, and the lower end of the male mould core is in threaded fit with the guide sleeve.
Therefore, by arranging the guide sleeve, the lower end of the male die core is in threaded fit connection with the guide sleeve, so that on one hand, the radial position precision of the male die core can be better ensured, and the forming precision is improved; on the other hand, the downward movement distance is matched with the external thread when the male die core is demolded.
As optimization, the lower end of the male die rod extends to the lower end face of the male die core, and the male die rod is fixedly connected to a movable die seat plate arranged at the lower end of the movable die part structure.
Like this, structural design is more simple reasonable, and just more convenient fixes the terrace die pole.
As optimization, the rotary driving part structure comprises a driving cylinder which is arranged on the movable mould part structure and is horizontally arranged, and a driving rack is connected with the piston rod end of the driving cylinder; the movable mould part structure further comprises a vertically arranged mounting shaft, a driving gear is arranged on the mounting shaft, and the driving rack is in transmission fit with the mounting shaft; the lower end of the male die core is provided with a driven gear, and the driving gear and the driven gear are meshed for transmission.
Like this, adopt the actuating cylinder to drive the horizontal movement of drive rack, drive rack drives the installation axle again and rotates, and the driving gear follows the installation axle and rotates, and the driven gear of driving gear drive convex mold core lower extreme rotates, and the convex mold core follows driven gear rotation, and whole structural design is simpler reasonable, and convenient installation arranges more, and makes the drive convex mold core that can be better rotate and accomplish the drawing of patterns for the drawing of patterns quality of external screw thread is more reliable.
As an optimization, deep groove ball bearings are respectively arranged at two ends of the mounting shaft.
Thus, the installation shaft is more convenient to install.
As optimization, the movable mould part structure further comprises a forming block which is arranged corresponding to the lower side of the pump head cover connecting pipe, and a connecting pipe forming cavity is formed in the upper side of the forming block and used for forming the lower side surface of the pump head cover connecting pipe.
Like this, through the shaping pump head lid connecting pipe downside surface of design shaping piece, structural design is more simple reasonable, more convenient change, reduction mould use cost.
As optimization, the side core pulling mechanism comprises a side core pulling sliding block, and the core rod is connected to the side core pulling sliding block; the fixed die part structure is provided with a side core-pulling driving rod obliquely arranged towards the outer lower side, the side core-pulling sliding block is provided with a matching hole, and the side core-pulling driving rod is matched with the matching hole; when the movable mold part structure and the fixed mold part structure are separated, the side core-pulling driving rod moves along with the fixed mold part structure and drives the side core-pulling sliding block and the core rod to horizontally move outwards to finish demolding.
Therefore, the side core pulling mechanism is simpler and more reasonable in design, and side pulling operation on the core rod can be more conveniently completed.
As optimization, the upper side of the outer end of the side core-pulling sliding block is provided with a guide inclined plane, and a yielding concave cavity is arranged on the fixed die plate corresponding to the side core-pulling sliding block; and after the movable mold part structure and the fixed mold part structure are closed, the matching inclined surfaces are mutually attached to and tightly pressed on the guide inclined surfaces.
Like this, after movable mould part structure and cover half part structure closure, the cooperation inclined plane pastes mutually and compresses tightly the setting on the direction inclined plane for the slider of loosing core of side can be better return, thereby makes the repeated positioning accuracy of core bar higher, improves shaping quality.
In conclusion, the structure has the characteristics that the structural design is simpler and more reasonable, the demolding is more convenient, and the demolding quality is more stable.
Drawings
Fig. 1 is a schematic structural view of a pump head cover in an embodiment of the utility model.
Fig. 2 is a schematic cut-away view of fig. 1.
Fig. 3 is a schematic top view of an embodiment of the present utility model.
Fig. 4 is a schematic cross-sectional view A-A of fig. 3.
Fig. 5 is a schematic cross-sectional view of B-B of fig. 3.
Fig. 6 is an enlarged partial schematic view of the C position in fig. 4.
Fig. 7 is a partially enlarged schematic view of the D position in fig. 5.
Detailed Description
The utility model is further described below with reference to the drawings and examples; it should be noted that in the description of the present utility model, the positional or positional relationship indicated by the terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific manner, and thus are not to be construed as limiting the present utility model. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
See fig. 1 to 7: a molding injection mold of a pump head cover comprises a movable mold part structure and a fixed mold part structure; the fixed die part structure comprises a fixed die plate 10 at the lower end, wherein a cavity is arranged on the fixed die plate and is used for forming the outer peripheral surface of the pump head cover and the upper side surface of the connecting pipe; the movable mould part structure comprises a side core pulling mechanism which is arranged corresponding to the cavity, and the side core pulling mechanism comprises a core bar 11 for forming an inner hole of a connecting pipe on the pump head cover; the movable mould part structure comprises a male mould column 12 arranged corresponding to the cavity, wherein the upper end surface of the male mould column is provided with a forming cavity and is used for forming a pump head cover mounting tube and external threads; the male die column comprises a male die core 13, the upper end face of the male die core is provided with a first molding concave cavity and is used for molding an external thread on a pump head cover, the upper end of the male die core is sleeved with a male die sleeve 14 with the upper end being in sealing arrangement, and the upper end face of the male die sleeve is provided with a second molding concave cavity and is used for molding an upper section of a mounting pipe on the pump head cover; a male die rod 15 is further arranged in an inner hole formed in the male die core, and the upper end of the male die rod is used for forming an inner hole of the mounting tube; the movable die part structure further comprises a rotation driving part structure, and the rotation driving part structure is in transmission connection with the male die core and can drive the male die core to rotate and release the die.
Like this, among the above-mentioned mould structure, through constitute terrace die post design by protruding mold core, protruding die sleeve and punch stem, but and the punch core respectively with the movable fit during punch sleeve and punch stem, when accomplishing the drawing of patterns of external screw thread, adopt to rotate the drive part structure solitary drive punch core and rotate, accomplish the drawing of patterns to the external screw thread, protruding die sleeve and punch stem are non-rotating, this just makes it can more conveniently drive the punch core and rotate to make the quality of mounting tube upper segment and mounting tube hole on the pump head lid of protruding die sleeve and punch stem shaping respectively better, improve the quality of work piece. And the male die column is more reasonable in design, can be more convenient to process and manufacture, can be replaced in a targeted manner in the use process of the die, and reduces the use cost of the die.
In this specific embodiment, the movable mold part structure further includes a guide sleeve 16 correspondingly disposed at the lower end of the male mold core, an inner hole of the guide sleeve is provided with an inner thread, the lower end of the male mold core is provided with an outer thread, and the lower end of the male mold core is in threaded fit with the guide sleeve.
Therefore, by arranging the guide sleeve, the lower end of the male die core is in threaded fit connection with the guide sleeve, so that on one hand, the radial position precision of the male die core can be better ensured, and the forming precision is improved; on the other hand, the downward movement distance is matched with the external thread when the male die core is demolded.
In this embodiment, the lower end of the male die rod extends below the lower end surface of the male die core, and the male die rod is fixedly connected to a movable die holder 17 provided at the lower end of the movable die part structure.
Like this, structural design is more simple reasonable, and just more convenient fixes the terrace die pole.
In the specific embodiment, the rotary driving part structure comprises a driving cylinder 18 which is arranged on the movable mould part structure and is horizontally arranged, and a driving rack 19 is arranged at the end of a piston rod of the driving cylinder in a connecting way; the movable mould part structure further comprises a vertically arranged mounting shaft 20, wherein a driving gear 21 is arranged on the mounting shaft, and the driving rack is in transmission fit with the mounting shaft; a driven gear 22 is arranged at the lower end of the male die core, and the driving gear and the driven gear are meshed for transmission.
Like this, adopt the actuating cylinder to drive the horizontal movement of drive rack, drive rack drives the installation axle again and rotates, and the driving gear follows the installation axle and rotates, and the driven gear of driving gear drive convex mold core lower extreme rotates, and the convex mold core follows driven gear rotation, and whole structural design is simpler reasonable, and convenient installation arranges more, and makes the drive convex mold core that can be better rotate and accomplish the drawing of patterns for the drawing of patterns quality of external screw thread is more reliable.
In the present embodiment, deep groove ball bearings 23 are provided at both ends of the mounting shaft, respectively.
Thus, the installation shaft is more convenient to install.
In this embodiment, the movable mold part structure further includes a molding block 24 disposed corresponding to the lower side of the pump head cover connecting pipe, and a connecting pipe molding cavity is disposed on the upper side of the molding block and used for molding the lower side surface of the pump head cover connecting pipe.
Like this, through the shaping pump head lid connecting pipe downside surface of design shaping piece, structural design is more simple reasonable, more convenient change, reduction mould use cost.
In this embodiment, the side core-pulling mechanism includes a side core-pulling slider 25, and the core rod is connected to the side core-pulling slider; the fixed die part is structurally provided with a side core-pulling driving rod 26 obliquely arranged towards the outer lower side, the side core-pulling sliding block is provided with a matching hole, and the side core-pulling driving rod is matched with the matching hole; when the movable mold part structure and the fixed mold part structure are separated, the side core-pulling driving rod moves along with the fixed mold part structure and drives the side core-pulling sliding block and the core rod to horizontally move outwards to finish demolding.
Therefore, the side core pulling mechanism is simpler and more reasonable in design, and side pulling operation on the core rod can be more conveniently completed.
In the specific embodiment, the upper side of the outer end of the side core-pulling sliding block is provided with a guide inclined plane 27, and a yielding cavity is arranged on the fixed die plate corresponding to the side core-pulling sliding block; and the position on the abdication concave cavity corresponding to the guide inclined plane is provided with a matching inclined plane 28, so that after the movable mould part structure and the fixed mould part structure are closed, the matching inclined plane is mutually attached to and tightly pressed on the guide inclined plane.
Like this, after movable mould part structure and cover half part structure closure, the cooperation inclined plane pastes mutually and compresses tightly the setting on the direction inclined plane for the slider of loosing core of side can be better return, thereby makes the repeated positioning accuracy of core bar higher, improves shaping quality.
In conclusion, the structure has the characteristics that the structural design is simpler and more reasonable, the demolding is more convenient, and the demolding quality is more stable.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (8)
1. A molding injection mold of a pump head cover comprises a movable mold part structure and a fixed mold part structure; the fixed die part structure comprises a fixed die plate at the lower end, wherein a cavity is arranged on the fixed die plate and is used for forming the outer peripheral surface of the pump head cover and the upper side surface of the connecting pipe; the movable mould part structure comprises a side core pulling mechanism which is arranged corresponding to the cavity, and the side core pulling mechanism comprises a core bar for forming an inner hole of a connecting pipe on the pump head cover; the movable mould part structure comprises a male mould column arranged corresponding to the cavity, wherein the upper end surface of the male mould column is provided with a forming concave cavity and is used for forming a pump head cover mounting tube and external threads; the method is characterized in that; the male die column comprises a male die core, the upper end face of the male die core is provided with a first molding concave cavity and is used for molding an external thread on the pump head cover, the upper end of the male die core is sleeved with a male die sleeve with the upper end being in sealing arrangement, and the upper end face of the male die sleeve is provided with a second molding concave cavity and is used for molding an upper section of a mounting pipe on the pump head cover; a male die rod is further arranged in an inner hole formed in the male die core, and the upper end of the male die rod is used for forming an inner hole of the mounting tube; the movable die part structure further comprises a rotation driving part structure, and the rotation driving part structure is in transmission connection with the male die core and can drive the male die core to rotate and release the die.
2. A pump head cover molding injection mold as in claim 1 wherein: the movable mould part structure further comprises a guide sleeve correspondingly arranged at the lower end of the male mould core, an inner thread is arranged in an inner hole of the guide sleeve, an outer thread is arranged at the lower end of the male mould core, and the lower end of the male mould core is in threaded fit with the guide sleeve.
3. A pump head cover molding injection mold as in claim 1 wherein: the lower end of the male die rod extends to the lower end face of the male die core, and the male die rod is fixedly connected to a movable die seat plate arranged at the lower end of the movable die part structure.
4. A pump head cover molding injection mold as in claim 1 wherein: the rotary driving part structure comprises a driving cylinder which is arranged on the movable mould part structure and is horizontally arranged, and a driving rack is connected with the piston rod end of the driving cylinder; the movable mould part structure further comprises a vertically arranged mounting shaft, a driving gear is arranged on the mounting shaft, and the driving rack is in transmission fit with the mounting shaft; the lower end of the male die core is provided with a driven gear, and the driving gear and the driven gear are meshed for transmission.
5. A pump head cover molding injection mold as in claim 4 wherein: and deep groove ball bearings are respectively arranged at two ends of the mounting shaft.
6. A pump head cover molding injection mold as in claim 1 wherein: the movable mould part structure also comprises a forming block which is arranged corresponding to the lower side of the pump head cover connecting pipe, and a connecting pipe forming cavity is arranged on the upper side of the forming block and is used for forming the lower side surface of the pump head cover connecting pipe.
7. A pump head cover molding injection mold as in claim 1 wherein: the side core pulling mechanism comprises a side core pulling sliding block, and the core rod is connected to the side core pulling sliding block; the fixed die part structure is provided with a side core-pulling driving rod obliquely arranged towards the outer lower side, the side core-pulling sliding block is provided with a matching hole, and the side core-pulling driving rod is matched with the matching hole; when the movable mold part structure and the fixed mold part structure are separated, the side core-pulling driving rod moves along with the fixed mold part structure and drives the side core-pulling sliding block and the core rod to horizontally move outwards to finish demolding.
8. A pump head cover molding injection mold as in claim 1 wherein: the upper side of the outer end of the side core-pulling sliding block is provided with a guide inclined plane, and a yielding cavity is arranged on the fixed die plate corresponding to the side core-pulling sliding block; and after the movable mold part structure and the fixed mold part structure are closed, the matching inclined surfaces are mutually attached to and tightly pressed on the guide inclined surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322938710.6U CN221392001U (en) | 2023-10-31 | 2023-10-31 | Forming injection mold of pump head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322938710.6U CN221392001U (en) | 2023-10-31 | 2023-10-31 | Forming injection mold of pump head cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221392001U true CN221392001U (en) | 2024-07-23 |
Family
ID=91934619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322938710.6U Active CN221392001U (en) | 2023-10-31 | 2023-10-31 | Forming injection mold of pump head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221392001U (en) |
-
2023
- 2023-10-31 CN CN202322938710.6U patent/CN221392001U/en active Active
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