CN210679489U - Mold convenient for ejecting thread product - Google Patents
Mold convenient for ejecting thread product Download PDFInfo
- Publication number
- CN210679489U CN210679489U CN201921377605.7U CN201921377605U CN210679489U CN 210679489 U CN210679489 U CN 210679489U CN 201921377605 U CN201921377605 U CN 201921377605U CN 210679489 U CN210679489 U CN 210679489U
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- plate
- ejector pin
- driving
- ejector
- forming ring
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Abstract
The utility model discloses a mold convenient for ejecting a thread product, an upper template can move towards a lower template to be close to or far away from the lower template so as to open or close the mold, a forming ring is fixed at the top end of the lower template, and the upper template is used for being matched with the forming ring to form a cavity when closing the mold; the ejection mechanism comprises two inclined ejectors, an ejector pin, a first ejector pin plate and a second ejector pin plate, and the top ends of the two inclined ejectors are movably connected in the lower die plate in a penetrating manner and used for extending into the forming ring during die assembly; the inclined top is gradually inclined towards the inner side close to the forming ring from bottom to top; the first ejector pin plate and the second ejector pin plate are used for moving towards the bottom end close to the lower template when the mold is opened; the bottom end of the thimble is fixedly connected to the first thimble plate; the top end of the thimble is movably connected in the lower template in a penetrating way; the top end of the ejector pin is used for extending into the forming ring and located between the top ends of the two inclined ejector pins during die assembly. The utility model discloses can make earlier to push up to one side and contract in and break away from with the product, then through the thimble with the product ejecting can.
Description
Technical Field
The utility model relates to the technical field of mold, especially, relate to a be convenient for ejecting mould of screw tooth product.
Background
At present, a mold mainly comprises an upper mold plate, a lower mold plate and a driving mechanism, wherein the upper mold plate can move up and down relative to the lower mold plate under the driving of the driving mechanism so as to open and close the mold, and the upper mold plate and the lower mold plate form a cavity for molding a product during closing the mold. When a product with the screw teeth is molded, the product is generally molded through an inclined top, when the mold is opened, the screw teeth on the inner side of the product need to be separated from the inclined top in the mold cavity, and if the product is directly ejected, the screw teeth and the inclined top are not easy to separate, so that the product is easy to damage.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a be convenient for ejecting mould of thread product, it can make the oblique top contract earlier and break away from with the product, then through the thimble with the product ejecting can.
The purpose of the utility model is realized by adopting the following technical scheme:
a die convenient for ejecting a screw thread product comprises an upper die plate, a lower die plate, a bottom plate and an ejection mechanism, wherein the upper die plate, the lower die plate and the bottom plate are sequentially arranged from top to bottom; the upper template can move towards or away from the lower template to open or close the die, a forming ring is fixed at the top end of the lower template, and the upper template is used for being matched with the forming ring to form a cavity when the die is closed; the ejection mechanism comprises two inclined ejectors, an ejector pin, a first ejector pin plate and a second ejector pin plate, wherein the top ends of the two inclined ejectors are movably connected in the first ejector pin plate and the lower die plate in a penetrating mode in sequence and used for extending into the forming ring during die assembly; the bottom end of the inclined top is fixedly connected with the second ejector plate; the inclined top is gradually inclined towards the inner side close to the forming ring from bottom to top; the first ejector pin plate and the second ejector pin plate are sequentially arranged between the bottom plate and the lower template from top to bottom; the first ejector pin plate and the second ejector pin plate are used for moving towards the bottom end close to the lower template when the mold is opened; the bottom end of the thimble is fixedly connected to the first thimble plate; the top end of the thimble is movably connected in the lower template in a penetrating way; the top end of the ejector pin is used for extending into the forming ring and located between the top ends of the two inclined ejector pins during die assembly.
Preferably, the die convenient for ejecting the thread product further comprises a driving mechanism, the driving mechanism comprises a first driving rod, a second driving rod, a limiting block and an elastic part, and the first driving rod and the second driving rod extend along the height direction of the bottom plate; the first driving rod and the second driving rod are distributed at intervals in the length direction of the bottom plate; the bottom end of the first driving rod is fixedly connected to the bottom plate, and the top end of the first driving rod is formed into a first driving end; the top end of the second driving rod is fixedly connected to the first ejector plate, and the bottom end of the second driving rod is formed into a second driving end; one end of the limiting block is provided with a limiting groove, and the other end of the limiting block is fixedly connected with one end of the elastic component; the other end of the elastic component is fixedly connected with the second ejector plate; the elastic part and the limiting groove extend along the length direction of the second ejector pin plate; the second driving end is used for being clamped in the limiting groove when the first ejector pin plate and the second ejector pin plate move simultaneously; the first driving end is used for abutting against the limiting block after the limiting block moves upwards so that the limiting block moves towards the position far away from the first driving end, and therefore the second driving end is separated from the limiting groove.
Preferably, a clamping hook is arranged on the second driving end, and the limiting groove is a through groove; the clamping hook is used for extending into the bottom end of the through groove and is clamped on the bottom end face, far away from the first driving end, of the through groove.
Preferably, the first driving end is provided with a protruding portion, and the protruding portion gradually inclines towards a direction close to the limiting block from top to bottom.
Compared with the prior art, the beneficial effects of the utility model reside in that: when the mold is opened, the first ejector plate and the second ejector plate move upwards simultaneously to drive the ejector pins and the inclined ejectors to eject the product from the lower mold plate simultaneously, and meanwhile, the two inclined ejectors are positioned in the forming ring, and in the upward movement process of the inclined ejectors, the forming ring can guide the two inclined ejectors to mutually approach and retract and radially separate from the product due to the unchanged inner diameter of the forming ring; and then, the first ejector plate moves upwards relative to the second ejector plate to eject the product from the inclined top, so that the product is demoulded.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 10. mounting a template; 20. a lower template; 21. forming a ring; 30. a base plate; 40. obliquely ejecting; 50. a thimble; 60. a first ejector plate; 70. a second ejector plate; 81. a first drive lever; 82. a second drive lever; 821. a second drive end; 83. a limiting block; 84. an elastic member.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 and 2, the mold for facilitating the ejection of the screw product includes an upper mold plate 10, a lower mold plate 20, a bottom plate 30 and an ejection mechanism, wherein the upper mold plate 10, the lower mold plate 20 and the bottom plate 30 are sequentially arranged from top to bottom. The top end of the lower template 20 is fixed with a forming ring 21, the upper template 10 can move towards or away from the lower template 20 to open or close the mold, and the upper template 10 is used for cooperating with the forming ring 21 to form a cavity when the mold is closed.
The specific ejection mechanism comprises two inclined ejectors 40, an ejector pin 50, a first ejector pin plate 60 and a second ejector pin plate 70, wherein the top ends of the two inclined ejectors 40 are movably connected in the first ejector pin plate 60 and the lower template 20 in a penetrating mode in sequence, and the two inclined ejectors 40 extend into the forming ring 21 during die assembly; the inclined top 40 gradually inclines towards the inner side close to the forming ring 21 from bottom to top; the first ejector plate 60 and the second ejector plate 70 are sequentially arranged between the bottom plate 30 and the lower template 20 from top to bottom; the first ejector plate 60 and the second ejector plate 70 are used for moving towards the bottom end close to the lower template 20 when the mould is opened; the bottom end of the thimble 50 is fixedly connected to the first thimble plate 60; the top end of the thimble 50 is movably connected in the lower template 20 in a penetrating way; the top end of the ejector pin 50 is used for extending into the forming ring 21 and located between the top ends of the two inclined tops 40 during die assembly.
On the basis of the structure, the upper template 10, the lower template 20, the bottom plate 30 and the ejection mechanism can be all arranged on a machine body of the mold, a driving mechanism on the machine body of the mold can drive the upper template 10 to move downwards towards the lower template 20, and when the mold is closed, a product is molded in a cavity. The top ends of the two inclined tops 40 can extend into the cavity to form a thread structure of a product, namely, the outer surface of the top end of each inclined top 40 is provided with threads, and the product can form a corresponding thread structure corresponding to the thread structure during molding.
After a product is formed and the mold is opened, a driving structure on the mold body can drive the second ejector pin plate 70 to move upwards so as to drive the second ejector pin 50 to move upwards to enable the inclined ejector pins 40 to move upwards, the two inclined ejector pins 40 are gradually inclined towards the inner side close to the forming ring 21 from bottom to top, so that the interval between the two inclined ejector pins 40 is gradually increased from top to bottom, and in the process of moving the inclined ejector pins 40 upwards, because the inner diameter of the forming ring 21 is unchanged, the parts with larger intervals below the two inclined ejector pins 40 can approach each other under the extrusion of the forming ring 21, so that the top ends of the inclined ejector pins 40 can approach each other, and the forming ring 21 can guide the two inclined ejector pins 40 to approach each other and retract inwards to separate from the product in the radial direction; thereafter, the first ejector plate 60 moves upward relative to the second ejector plate 70, and the ejector pins 50 fixedly connected to the first ejector plate 60 can move upward relative to the inclined roof 40 to eject the product from the inclined roof 40, so that the product is demolded.
Specifically, in this embodiment, the mold for facilitating ejection of the screw product further includes a driving mechanism, the driving mechanism includes a first driving rod 81, a second driving rod 82, a limiting block 83, and an elastic component 84, the first driving rod 81 and the second driving rod 82 both extend along the height direction of the bottom plate 30, and the first driving rod 81 and the second driving rod 82 are distributed at intervals in the length direction of the bottom plate 30. In addition, the bottom end of the first driving rod 81 is fixed to the bottom plate 30, and the top end of the first driving rod 81 is formed as a first driving end. Correspondingly, the top end of the second driving rod 82 is fixedly connected to the first ejector plate 60, and the bottom end of the second driving rod 82 is formed as a second driving end 821. One end of the limiting block 83 is provided with a limiting groove, and the other end of the limiting block 83 is fixedly connected with one end of the elastic component 84; the other end of the elastic member 84 is fixedly connected with the second ejector plate 70; the elastic member 84 and the stopper groove both extend in the longitudinal direction of the second ejector plate 70; the second driving end 821 is used for being clamped in the limiting groove when the first ejector plate 60 and the second ejector plate 70 move simultaneously; the first driving end is used for abutting against the limiting block 83 after the limiting block 83 moves upwards so that the limiting block 83 moves towards the position far away from the first driving end, and therefore the second driving end 821 is separated from the limiting groove.
When the mold is closed, the first ejector plate 60, the second ejector plate 70 and the bottom plate 30 are all in a joint state, at this time, the first driving end of the first driving rod 81 abuts against the end part of the limiting block 83 far away from the second driving rod 82, meanwhile, the second driving end 821 of the second driving rod 82 is clamped in the limiting groove, when the mold is opened, the driving structure on the bottom plate 30 can jack up the first ejector plate 60, at this time, the first ejector plate 60 is connected with the second ejector plate 70 through the second driving end 821, therefore, the upward movement of the second ejector plate 70 can drive the first ejector plate 60 to move upward at the same time, and in the upward movement process of the second ejector plate 70, the limiting block 83 on the second ejector plate 70 can move upward along with the second ejector plate 70, the limiting block 83 moves to the first driving end at the top end of the first driving rod 81, so that the first driving end can gradually jack up the limiting block 83 far away from the first driving end, the elastic member 84 is compressed, and in the process that the limiting block 83 is far away from the first driving end, the second driving end 821 can be separated from the limiting groove, that is, the first ejector plate 60 and the second ejector plate 70 are separated, and thereafter, the driving structure on the bottom plate 30 can continue to eject the first ejector plate 60, so that the first ejector plate 60 can move upward relative to the second ejector plate 70, and thus, the relative movement of the ejector pins 50 and the inclined ejector pins 40 is realized, and the secondary demolding operation is completed.
Of course, the above-described sequential movement of the second ejector plate 70 and the first ejector plate 60 may be achieved by two independent drive mechanisms, respectively. It should be noted that the driving mechanism in the present embodiment may be a driving mechanism commonly used in a mold in the prior art, such as an air cylinder or an oil cylinder.
Further, a hook is arranged on the second driving end 821, and the limiting groove is a through groove; the clamping hook is used for extending into the bottom end of the through groove and is clamped on the bottom end face, far away from the first driving end, of the through groove. On the basis of the structure, in addition, when resetting, the first ejector plate 60 can move downwards under the driving of the driving structure of the bottom plate 30, the limiting block 83 resets under the action of the elastic component 84 at the moment and moves towards the position close to the first driving end, the first ejector plate 60 moves downwards to drive the second driving end 821 to move downwards, the second driving end 821 can extend into the limiting groove again and is clamped into the limiting groove, and then the second ejector plate 70 and the first ejector plate 60 can move downwards together to complete resetting. On the structural basis that the groove is led to at spacing trench, the trip of second drive end 821 alright in the downstream process, stretch into the bottom that leads to the groove rather than the bottom joint, stable in structure.
Further, the first driving end in this embodiment is provided with a protruding portion, and the protruding portion gradually inclines toward the direction close to the limiting block 83 from top to bottom. Namely, after the limiting block 83 moves upwards, the limiting block 83 can abut against the protruding portion of the first driving end, and the protruding portion can push the limiting block 83 away from the first driving end, so that the second driving end 821 is separated from the limiting groove. And the protrusion part is gradually inclined from top to bottom towards the position close to the limit block 83, so that the limit block 83 moves towards the position far away from the first driving end and continues to move upwards, and the inclined state of the protrusion part can guide the limit block 83 to gradually reset under the action of the elastic component 84, so that the resetting of the first ejector plate 60 and the second ejector plate 70 at the later stage is facilitated.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (4)
1. A die convenient for ejecting a screw tooth product is characterized by comprising an upper die plate, a lower die plate, a bottom plate and an ejection mechanism, wherein the upper die plate, the lower die plate and the bottom plate are sequentially arranged from top to bottom; the upper template can move towards or away from the lower template to open or close the die, a forming ring is fixed at the top end of the lower template, and the upper template is used for being matched with the forming ring to form a cavity when the die is closed; the ejection mechanism comprises two inclined ejectors, an ejector pin, a first ejector pin plate and a second ejector pin plate, wherein the top ends of the two inclined ejectors are movably connected in the first ejector pin plate and the lower die plate in a penetrating mode in sequence and used for extending into the forming ring during die assembly; the bottom end of the inclined top is fixedly connected with the second ejector plate; the inclined top is gradually inclined towards the inner side close to the forming ring from bottom to top; the first ejector pin plate and the second ejector pin plate are sequentially arranged between the bottom plate and the lower template from top to bottom; the first ejector pin plate and the second ejector pin plate are used for moving towards the bottom end close to the lower template when the mold is opened; the bottom end of the thimble is fixedly connected to the first thimble plate; the top end of the thimble is movably connected in the lower template in a penetrating way; the top end of the ejector pin is used for extending into the forming ring and located between the top ends of the two inclined ejector pins during die assembly.
2. The mold for facilitating the ejection of a threaded product according to claim 1, further comprising a driving mechanism, wherein the driving mechanism comprises a first driving rod, a second driving rod, a limiting block and an elastic component, and the first driving rod and the second driving rod both extend along the height direction of the bottom plate; the first driving rod and the second driving rod are distributed at intervals in the length direction of the bottom plate; the bottom end of the first driving rod is fixedly connected to the bottom plate, and the top end of the first driving rod is formed into a first driving end; the top end of the second driving rod is fixedly connected to the first ejector plate, and the bottom end of the second driving rod is formed into a second driving end; one end of the limiting block is provided with a limiting groove, and the other end of the limiting block is fixedly connected with one end of the elastic component; the other end of the elastic component is fixedly connected with the second ejector plate; the elastic part and the limiting groove extend along the length direction of the second ejector pin plate; the second driving end is used for being clamped in the limiting groove when the first ejector pin plate and the second ejector pin plate move simultaneously; the first driving end is used for abutting against the limiting block after the limiting block moves upwards so that the limiting block moves towards the position far away from the first driving end, and therefore the second driving end is separated from the limiting groove.
3. The die convenient for ejecting the screw tooth product according to claim 2, wherein the second driving end is provided with a clamping hook, and the limiting groove is a through groove; the clamping hook is used for extending into the bottom end of the through groove and is clamped on the bottom end face, far away from the first driving end, of the through groove.
4. The die for facilitating the ejection of a threaded product according to claim 2, wherein the first driving end is provided with a protrusion, and the protrusion is gradually inclined from top to bottom toward a direction close to the limiting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921377605.7U CN210679489U (en) | 2019-08-22 | 2019-08-22 | Mold convenient for ejecting thread product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921377605.7U CN210679489U (en) | 2019-08-22 | 2019-08-22 | Mold convenient for ejecting thread product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210679489U true CN210679489U (en) | 2020-06-05 |
Family
ID=70903028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921377605.7U Expired - Fee Related CN210679489U (en) | 2019-08-22 | 2019-08-22 | Mold convenient for ejecting thread product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210679489U (en) |
-
2019
- 2019-08-22 CN CN201921377605.7U patent/CN210679489U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200605 Termination date: 20200822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |