CN211518363U - Pipe fitting slide block connecting rod arc core pulling mechanism - Google Patents
Pipe fitting slide block connecting rod arc core pulling mechanism Download PDFInfo
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- CN211518363U CN211518363U CN201921704485.7U CN201921704485U CN211518363U CN 211518363 U CN211518363 U CN 211518363U CN 201921704485 U CN201921704485 U CN 201921704485U CN 211518363 U CN211518363 U CN 211518363U
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- slide block
- connecting rod
- pipe fitting
- pulling mechanism
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Abstract
The utility model relates to the field of dies, and provides a pipe fitting slider connecting rod circular arc core pulling mechanism, which comprises a fixed die base, a movable die base, a circular arc rotating slider, a straight pulling slider and a die cavity, wherein the circular arc rotating slider comprises a bent part, the straight pulling slider comprises a cylindrical part, and the end surface of the bent part is connected with the end surface of the cylindrical part in a die closing state; a central shaft is arranged on the fixed die base, the circular arc rotating slide block is connected with the central shaft in a way of rotating around the central shaft, and the straight line of the circular arc center of the bent part of the circular arc rotating slide block is superposed with the axis of the central shaft; the arc rotating slide block is connected with the straight drawing slide block through a connecting rod, and the straight drawing slide block is driven by the driving device to do linear motion along the axial direction of the cylindrical part. The utility model discloses simplify the action of loosing core of mould, shortened mould action cycle to the mechanism of loosing core simple structure does not occupy the mould inner space, can be applicable to the environment that the product structure is complicated.
Description
Technical Field
The utility model belongs to the mould field relates to the mechanism of loosing core, especially relates to a pipe fitting slider connecting rod circular arc mechanism of loosing core.
Background
The two-way and tee bend pipe fitting joint product mould structure of traditional pipe fitting circular arc transition is comparatively complicated, and it is more wherein to use rack and pinion structure, and it is big to occupy the mould space, and rack and pinion wearing and tearing easily appear in this structure, and rack and pinion fit clearance produces the abnormal sound easily simultaneously, and need design independent hydro-cylinder and motor drive rack and pinion and loose core, and the action time is long, leads to mould production cycle length, and product cost is high.
For example, chinese patent document discloses a straight rotation linkage core-pulling mechanism of an injection mold for an elbow product [ application No.: CN201010506805.5], comprises an inward-bent core-pulling rod, a connecting rod, an inward-straight core-pulling rod, an outward-straight core-pulling rod, an oblique guide slide block, a delayed pull rod and an oblique guide post. The invention adopts a rotary core-pulling mechanism consisting of an inward-bent core-pulling mechanism, a connecting rod, an inward straight core-pulling mechanism and an outward straight core-pulling mechanism, and the inward and outward straight core-pulling mechanisms are sequentially and straightly pulled out in sections by an inclined guide sliding block and a delayed pull rod.
Although the scheme overcomes the problems and the defects of the prior art that the outer wall of the elbow product has flash, occupies more labor, has high working strength, low efficiency and the like, the injection molding of the elbow product realizes automatic core pulling and demolding, and the purposes of eliminating the flash of the outer wall, reducing labor, reducing working strength and the like are achieved. However, in the scheme, the plane of the arc surface of the inward-bent loose core is parallel to the opening and closing direction of the movable mold and the fixed mold, so that the integral structure is complex, the occupied space in the mold is large, and the operation is complex.
Disclosure of Invention
The utility model aims to provide a pipe fitting slide block connecting rod arc core pulling mechanism aiming at the problems; the core pulling structure solves the technical problems that the core pulling structure is complex, the occupied inner space of the die is large, the operation is complex and the like in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a pipe fitting slider connecting rod circular arc mechanism of loosing core creatively, including the cover half seat, locate the cover half core in the cover half seat, the movable mould seat, locate the movable mould core in the movable mould seat to and the rotatory slider of circular arc and directly take out the slider, the cover half core, movable mould core and the rotatory slider of circular arc and the profiled surface of directly taking out the slider enclose to close and constitute the die cavity, the rotatory slider of circular arc includes the flexion, directly takes out the slider and includes cylindricality portion, and the terminal surface of flexion and the terminal surface of cylindricality portion meet under the compound die state.
The fixed die base is provided with a central shaft, the circular arc rotating slide block is connected with the central shaft in a way of rotating around the central shaft, and the straight line of the circular arc center of the bending part of the circular arc rotating slide block is superposed with the axis of the central shaft.
The arc rotating slide block is connected with the straight drawing slide block through a connecting rod, and the straight drawing slide block is driven by the driving device to do linear motion along the axial direction of the cylindrical part.
In the pipe fitting slide block connecting rod arc core pulling mechanism, the fixed die base is provided with an arc-shaped slide rail, the arc center of the arc-shaped slide rail is superposed with the axis of the central shaft, and the arc rotating slide block is provided with an arc-shaped slide groove corresponding to the arc-shaped slide rail. Through the cooperation of the arc-shaped sliding groove and the arc-shaped sliding rail, the rotation of the arc-shaped rotating sliding block is more accurate, and the concentricity of the rotating center and the circle center of the arc is ensured.
In the pipe fitting slide block connecting rod arc core pulling mechanism, the central angle of the bent part of the arc rotating slide block corresponding to the arc is smaller than 90 degrees, the central angle of the arc slide rail is larger than the central angle of the bent part of the arc rotating slide block, and the arc rotating slide block moves on the arc slide rail in the rotating core pulling process.
In the pipe fitting slide block connecting rod arc core pulling mechanism, the end surface of the cylindrical part of the straight pulling slide block is provided with an inserting convex part, and the end surface of the bent part of the arc rotating slide block is provided with an inserting groove correspondingly matched with the inserting convex part. The two sliding blocks can be accurately and stably connected.
In the pipe fitting slide block connecting rod arc core pulling mechanism, the arc rotating slide block is connected with the central shaft through the ball bearing.
In the pipe fitting sliding block connecting rod arc core pulling mechanism, a first pin shaft is arranged on the straight pulling sliding block, a second pin shaft is arranged on the arc rotating sliding block, the axial directions of the first pin shaft and the second pin shaft are both parallel to the axial direction of the central shaft, and two ends of the connecting rod are respectively hinged and connected with the first pin shaft and the second pin shaft.
In the pipe fitting slide block connecting rod arc core pulling mechanism, a cooling water pipe is arranged inside the arc rotating slide block, and the inlet and the outlet of the cooling water pipe are respectively connected with an external water inlet pipeline and a water drainage pipeline. The slider is fully cooled, the molding period is shortened as much as possible, the production efficiency is improved, and the manufacturing cost of single products is reduced.
In the pipe fitting slide block connecting rod arc core pulling mechanism, the cooling water pipe is a spiral pipeline. Further cooling is sufficient.
In the pipe fitting slide block connecting rod arc core pulling mechanism, the rear end of the bending part is a columnar connecting seat, and the axial lead of the connecting seat is vertical to the rear end face of the bending part. To further reduce the internal space occupied by the rotation.
In the pipe fitting slide block connecting rod arc core pulling mechanism, the driving device is an oil cylinder or an air cylinder.
Compared with the prior art, the utility model has the advantages of:
1. the core pulling mechanism has the advantages that the straight pulling slide block is driven to pull the arc rotating slide block to pull the core, core pulling actions of the mold are simplified, the action period of the mold is shortened, the core pulling mechanism is simple in structure, does not occupy the inner space of the mold, can be suitable for environments with complex product structures, and is convenient to operate.
2. Through the arc-shaped guide rail, the core pulling process has higher precision and concentricity, the rotation of the arc-shaped rotating slide block is more accurate, and the eccentric problem possibly generated when the product is injected is prevented.
3. The cooling water pipe is additionally arranged to fully cool the slide block, so that the molding period is shortened as much as possible, the production efficiency is improved, and the manufacturing cost of single products is reduced.
Drawings
Fig. 1 is a schematic diagram of the internal structure provided by the present invention.
Fig. 2 is a cross-sectional view provided by the present invention.
Fig. 3 is an axonometric view provided by the present invention.
In the figure, a fixed die holder 1, a fixed die core 10, a central shaft 11, a ball bearing 110, an arc-shaped slide rail 12, a support piece 13, a movable die holder 2, a movable die core 20, a glue injection port 21, a straight drawing slide block 3, a first pin shaft 30, an insertion convex part 31, an arc-shaped rotating slide block 4, a second pin shaft 40, a cooling water pipe 41, a die cavity 5, a connecting rod 6, an ejector rod 70, a top plate 71, a bottom plate 8, a guide pillar 9, a spring 90 and a driving device 100.
Detailed Description
As shown in fig. 1 and 2, the pipe fitting slider connecting rod arc core pulling mechanism comprises a fixed mold core 101, a fixed mold core arranged in the fixed mold core 101, a movable mold base 2, a movable mold core 20 arranged in the movable mold base 2, an arc rotating slider 4 and a straight pulling slider 3, wherein molding surfaces of the fixed mold core, the movable mold core 20, the arc rotating slider 4 and the straight pulling slider 3 are enclosed to form a cavity 5. The plane of the arc rotating slide block 4 is vertical to the moving direction of the moving die base 2.
As shown in fig. 1, specifically, the circular arc rotary slider 4 includes a curved portion and a columnar connection seat, a front end surface of the connection seat is connected to a rear end surface of the curved portion, and an axial line of the connection seat is perpendicular to the rear end surface of the curved portion. The front end of the straight drawing slide block 3 is a cylindrical part, and the rear end is fixedly connected to the driving device 100. The end face of the cylindrical part of the straight drawing sliding block 3 is provided with an inserting convex part 31, and the end face of the curved part of the circular arc rotating sliding block 4 is provided with an inserting groove correspondingly matched with the inserting convex part 31. When the mold is closed, the end surface of the cylindrical part of the straight drawing slide block 3 and the end surface of the bent part of the arc rotating slide block 4 can be accurately and stably connected, and a part of the mold cavity 5 is formed.
The fixed mold core 101 is provided with a central shaft 11, a ball bearing 110 is sleeved on the central shaft 11, the circular arc rotary slide block 4 is connected with the central shaft 11 through the ball bearing 110, and a straight line of a circular arc center of a bending part of the circular arc rotary slide block 4 is superposed with an axis of the central shaft 11. The straight drawing slide block 3 is provided with a first pin shaft 30, the circular arc rotating slide block 4 is provided with a second pin shaft 40, the axial directions of the first pin shaft 30 and the second pin shaft 40 are both parallel to the axial direction of the central shaft 11, and two ends of the connecting rod 6 are respectively hinged with the first pin shaft 30 and the second pin shaft 40. The straight drawing slide block 3 is driven by the driving device 100 to make linear motion along the axial direction of the cylindrical part, and meanwhile, the arc rotating slide block 4 is driven by the connecting rod 6 to rotate around the central shaft 11. The central angle of the curved part of the arc rotary sliding block 4 corresponding to the arc is smaller than 90 degrees, and the central angle of the arc sliding rail 12 is larger than the central angle of the curved part of the arc rotary sliding block 4, so that the arc rotary sliding block 4 can perform core pulling on the arc sliding rail 12. When the driving device 100 drives the straight-drawing sliding block 3 to draw the core in place, the connecting rod 6 just drives the arc-shaped rotating sliding block 4 to rotate to draw the core in place.
In order to ensure the concentricity of the rotation center and the circular arc center of the circular arc rotating slide block 4, the fixed mold core 101 is provided with a circular arc slide rail 12, the circular arc center of the circular arc slide rail 12 is coincident with the axis of the central shaft 11, and the circular arc rotating slide block 4 is provided with a circular arc chute corresponding to the circular arc slide rail 12. The arc rotating slide block 4 is driven by the connecting rod 6 to rotate along the arc slide rail 12.
The circular arc rotating slide block 4 is internally provided with a cooling water pipe 41, the cooling water pipe 41 is provided with two rows of spiral pipelines, the two rows of pipelines are communicated at the top end, the tail ends of the two rows of pipelines are respectively provided with an inlet and an outlet of cooling water at the rear end part of the connecting base, and the two rows of pipelines are respectively connected with an external water inlet pipeline (not shown in the figure) and a water drainage pipeline (not shown in the figure). The slider is fully cooled, the molding period is shortened as much as possible, the production efficiency is improved, and the manufacturing cost of single products is reduced.
As shown in fig. 2, the glue injection port 21 is located on the movable mold core 20 and is communicated with the cavity 5. The fixed die core 101 is fixed on the bottom plate 8 through a supporting column, a top plate 71 is arranged between the fixed die core 101 and the bottom plate 8, a top rod 70 is arranged on the top plate 71, the top rod 70 can axially move in the fixed die core 101 and the fixed die core, guide pillars 9 are arranged in the top plate 71 and the fixed die core 101, a spring 90 is arranged on the guide pillars 9 between the top plate 71 and the fixed die core 101, the top plate 71 ejects a product piece upwards along the guide pillars 9 through the top rod 70, the spring 90 generates elastic deformation, and the spring 90 enables the top rod 70 to return to an initial state after the ejection action is completed.
With reference to fig. 2 and 3, the movable mold base 2 and the fixed mold core 101 are supported by the supporting member 13, and the movable mold core 20 and one side of the fixed mold core are provided with a space while the mold cores are pressed, so that a sufficient internal space can be provided for core pulling.
The driving device 100 is an oil cylinder or an air cylinder, and the oil cylinder is used for driving in the embodiment.
The working principle of the utility model is as follows:
the oil cylinder drives the straight-drawing sliding block 3 to perform core-drawing action, and the connecting rod 6 drives the arc-shaped rotating sliding block 4 to rotate along the central shaft 11 and the arc-shaped sliding rail 12 to perform core-drawing. When the driving device 100 drives the straight drawing slide block 3 to draw the core in place, the arc rotating slide block 4 also rotates in place, and the two slide blocks are driven to be linked through one oil cylinder, so that the core drawing action is simplified.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as fixed die holder, fixed die core, central shaft, circular arc slide rail, support member, movable die holder, movable die core, glue injection port, straight slide block and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. A pipe fitting slide block connecting rod arc core pulling mechanism comprises a fixed die base (1), a fixed die core (10) arranged in the fixed die base (1), a movable die base (2), a movable die core (20) arranged in the movable die base (2), an arc rotating slide block (4) and a straight pulling slide block (3), wherein the fixed die core (10), the movable die core (20), the arc rotating slide block (4) and the forming surface of the straight pulling slide block (3) are enclosed to form a cavity (5), and the pipe fitting slide block connecting rod arc core pulling mechanism is characterized in that the arc rotating slide block (4) comprises a bent part, the straight pulling slide block (3) comprises a cylindrical part, and the end surface of the bent part is connected with the end surface of the cylindrical part in a die closing state;
a central shaft (11) is arranged on the fixed die holder (1), the arc rotary sliding block (4) is connected with the central shaft (11) in a manner of rotating around the central shaft (11), and a straight line where the arc center of the curve of the arc rotary sliding block (4) is located coincides with the axis of the central shaft (11);
the arc rotating slide block (4) is connected with the straight drawing slide block (3) through a connecting rod (6), and the straight drawing slide block (3) is driven by a driving device (100) to do linear motion along the axial direction of the cylindrical part.
2. The pipe fitting slide block connecting rod arc core pulling mechanism according to claim 1, characterized in that: the fixed die holder (1) is provided with an arc-shaped sliding rail (12), the arc center of the arc-shaped sliding rail (12) is overlapped with the axis of the central shaft (11), and the arc-shaped rotating slide block (4) is provided with an arc-shaped sliding groove corresponding to the arc-shaped sliding rail (12).
3. The pipe fitting slide block connecting rod arc core pulling mechanism according to claim 2, characterized in that: the central angle of the curved part of the arc rotary sliding block (4) corresponding to the arc is smaller than 90 degrees, and the central angle of the arc sliding rail (12) is larger than the central angle of the curved part of the arc rotary sliding block (4).
4. The pipe fitting slide block connecting rod arc core pulling mechanism according to claim 1, characterized in that: the end face of the cylindrical part of the straight drawing sliding block (3) is provided with an inserting convex part (31), and the end face of the bent part of the arc rotating sliding block (4) is provided with an inserting groove correspondingly matched with the inserting convex part (31).
5. The pipe fitting slide block connecting rod arc core pulling mechanism according to claim 1, characterized in that: the arc rotating slide block (4) is connected with the central shaft (11) through a ball bearing (110).
6. The pipe fitting slide block connecting rod arc core pulling mechanism according to claim 1, characterized in that: the straight drawing sliding block (3) is provided with a first pin shaft (30), the circular arc rotating sliding block (4) is provided with a second pin shaft (40), the axis directions of the first pin shaft (30) and the second pin shaft (40) are parallel to the axis direction of the central shaft (11), and two ends of the connecting rod (6) are respectively hinged and connected with the first pin shaft (30) and the second pin shaft (40).
7. The pipe fitting slide block connecting rod arc core pulling mechanism according to claim 1, characterized in that: and a cooling water pipe (41) is arranged inside the arc rotating sliding block (4), and the inlet and the outlet of the cooling water pipe (41) are respectively connected with an external water inlet pipeline and a water discharge pipeline.
8. The pipe fitting slider connecting rod circular arc core pulling mechanism according to claim 7, characterized in that: the cooling water pipe (41) is a spiral pipeline.
9. The pipe fitting slide block connecting rod arc core pulling mechanism according to claim 1, characterized in that: the rear end of the bending part is a columnar connecting seat, and the axis of the connecting seat is perpendicular to the rear end face of the bending part.
10. The pipe fitting slide block connecting rod arc core pulling mechanism according to claim 1, characterized in that: the driving device (100) is an oil cylinder or an air cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704485.7U CN211518363U (en) | 2019-10-12 | 2019-10-12 | Pipe fitting slide block connecting rod arc core pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704485.7U CN211518363U (en) | 2019-10-12 | 2019-10-12 | Pipe fitting slide block connecting rod arc core pulling mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN211518363U true CN211518363U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921704485.7U Active CN211518363U (en) | 2019-10-12 | 2019-10-12 | Pipe fitting slide block connecting rod arc core pulling mechanism |
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| CN (1) | CN211518363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619034A (en) * | 2021-09-03 | 2021-11-09 | 浙江创元模具科技有限公司 | Upward side sliding block limiting mechanism of plastic pipe fitting injection mold |
-
2019
- 2019-10-12 CN CN201921704485.7U patent/CN211518363U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619034A (en) * | 2021-09-03 | 2021-11-09 | 浙江创元模具科技有限公司 | Upward side sliding block limiting mechanism of plastic pipe fitting injection mold |
| CN113619034B (en) * | 2021-09-03 | 2023-05-23 | 浙江创元模具科技有限公司 | Limiting mechanism for upward sliding block of plastic pipe fitting injection mold |
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