A thread mold with pre-rotation and post-rotation

Abstract

The utility model provides a kind of before top inner thread mould of rotation, including waterway core, inner sleeve core is fixedly installed in the top of waterway core, middle sleeve core is fixedly installed on the outside of inner sleeve core by locating pin, the thread core that can be ejected forming on the outside workpiece of inner sleeve core and middle sleeve core is equipped with on the outside of middle sleeve core, the inner thread part of workpiece is separated from thread core by the mode of rotating thread core first, subsequently thread core is driven to rise, drives workpiece and inner sleeve core and middle sleeve core to separate quickly, realizes disposable fast demoulding operation to workpiece, improves processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of thread mold technology, and more particularly to an internal thread mold that rotates first and then pushes out. Background Technology

[0002] Currently, when using internal thread molds, if the height of the product's molded part is greater than the height of the thread, or if the product is small or ejector pins cannot be placed due to water channel limitations, it can lead to situations where demolding cannot be completed smoothly in one go, thus affecting subsequent processing and preventing the product from being completely demolded. Summary of the Invention

[0003] The present invention aims to solve the problems existing in the prior art by providing a first-rotation-then-ejection internal thread mold to solve the problems mentioned in the background art.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: This first-rotation-then-ejection internal thread mold includes a water channel core, an inner sleeve core fixedly installed on the top of the water channel core, a middle sleeve core fixedly installed on the outer side of the inner sleeve core by a positioning pin, and a threaded core sleeved on the outer side of the middle sleeve core, capable of ejecting the workpiece formed on the outer side of the inner sleeve core and the middle sleeve core. This structure allows the internally threaded workpiece to be separated from the mold by first rotating and then ejecting it.

[0005] To further improve the design, a gear core is fitted on the outer side of the water channel core to drive the threaded core to rotate and move up and down. The gear core and the threaded core are fixedly connected by a locating pin. The threaded core is slidably and rotatably connected to the water channel core.

[0006] To further improve the design, a guide sleeve fixing seat is provided on the outer side of the threaded core and the gear core. A guide sleeve fitted onto the outer side of the gear core is fixedly installed on the inner wall of the guide sleeve fixing seat by a locating pin. This structure can restrict and guide the movement of the gear core through the guide sleeve.

[0007] To further improve the design, the guide sleeve fixing seat is provided with a through groove to facilitate the meshing of the rack and gear core.

[0008] To further improve the design, a mold is also included. The inner core, middle core, and threaded core are located inside the mold. A sealing sleeve is provided on the outside of the threaded core to seal the inner wall of the mold. The sealing sleeve is fixed on a guide sleeve fixing seat, which is fixedly installed on the mold. The function of this structure is to prevent liquid raw materials from leaking out during molding.

[0009] To further improve the design, a slot is provided on the outer side of the gear core for driving the gear core to rise and fall to eject the workpiece. This structure facilitates the raising and lowering of the gear core, which in turn drives the threaded core to eject the workpiece and separate it from the mold.

[0010] To further improve the design, a lifting assembly is also included. This assembly consists of an upper plate, a lower plate, and a locking plate. The upper and lower plates are fixedly connected by pins. Both the upper and lower plates have a first and a second opening for the gear core and water channel core to pass through. The lower plate has a slide rail that connects to a locking slot, and a locking plate that can engage with the slot is slidably connected within the slide rail. This structure allows the gear core to rise only when needed.

[0011] To further improve the design, a handle is fixedly installed on the card plate to facilitate pushing the card plate into the card slot.

[0012] The beneficial effects of this invention are: First, by rotating the threaded core, the internal thread of the workpiece is disengaged from the threaded core. Then, the threaded core is driven to rise, causing the workpiece to quickly disengage from the inner and middle cores, thus achieving a one-time and rapid demolding operation and improving processing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the water channel core and the sleeve core in this invention; Figure 3 This is a schematic diagram of the structure of the inner core in this invention; Figure 4 This is a schematic diagram of the gear core structure in this invention; Figure 5 This is a schematic diagram of the threaded core structure in this invention; Figure 6 This is a schematic diagram of the guide sleeve in this invention; Figure 7 This is a schematic diagram of the sealing sleeve in this invention; Figure 8 This is a schematic diagram of the guide sleeve fixing seat in this invention; Figure 9 This is a schematic diagram of the mold structure in this invention; Figure 10 This is a schematic diagram of the lifting assembly in this invention; Figure 11 This is a schematic diagram of the through groove 181 in this invention.

[0014] Explanation of reference numerals in the attached drawings: Inner sleeve core 11, Water channel core 12, Middle sleeve core 13, Gear core 14, Slot 141, Threaded core 15, Guide sleeve 16, Sealing sleeve 17, Guide sleeve fixing seat 18, Through groove 181, Mold 19, Lifting assembly 20, Upper plate 21, First through port 211, Card plate 22, Handle 23, Lower plate 24, Slide rail 241, Second through port 242. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings: See attached document Figures 1-11 This embodiment of the rotating-then-ejecting internal thread mold includes a water channel core 12. An inner sleeve core 11 is fixedly mounted on the top of the water channel core 12. A middle sleeve core 13 is fixedly mounted on the outer side of the inner sleeve core 11 via a positioning pin. A threaded core 15, capable of ejecting workpieces formed outside the inner sleeve core 11 and the middle sleeve core 13, is sleeved on the outer side of the middle sleeve core 13. A gear core 14, used to drive the threaded core 15 to rotate and move, is sleeved on the outer side of the water channel core 12. The gear core 14 and the threaded core 15 are fixedly connected via a positioning pin. A guide sleeve fixing seat 18 is provided on the outer side of the threaded core 15 and the gear core 14. A guide sleeve 16, sleeved on the outer side of the gear core 14, is fixedly mounted on the inner wall of the guide sleeve fixing seat 18 via a positioning pin. The guide sleeve fixing seat 18 has a through groove 181 to facilitate meshing between the rack and the gear core 14. The system also includes a mold 19, in which the inner core 11, middle core 13, and threaded core 15 are located. A sealing sleeve 17 is provided on the outer side of the threaded core 15 to seal the inner wall of the mold 19. The sealing sleeve 17 is fixed on a guide sleeve fixing seat 18, which is fixedly installed on the mold 19. A slot 141 is provided on the outer side of the gear core 14 to drive the gear core 14 to lift and eject the workpiece. The system also includes a lifting assembly 20, which consists of an upper plate 21, a lower plate 24, and a locking plate 22. The upper plate 21 and lower plate 24 are fixedly connected by pins. The upper plate 21 and lower plate 24 have a first opening 211 and a second opening 242 for the gear core 14 and the water channel core 12 to pass through. The lower plate 24 has a slide 241 that connects to the slot 141, and a locking plate 22 that can be inserted into the slot 141 is slidably connected within the slide 241. A handle 23 is fixedly installed on the card plate 22 to facilitate pushing the card plate 22 into the card slot 141.

[0016] In use, the rack drives the gear core 14 to rotate, and the rotation of the gear core 14 drives the spiral core 15 to rotate. The rotation of the threaded core 15 causes the threaded part of the workpiece to disengage from the threaded core 15. Then, the clamping plate 22 is pushed into the clamping slot 141, so that the lifting assembly 20 can lift the threaded core 15 by rising, thereby ejecting the workpiece from the mold 19, so that the workpiece is separated from the inner core 11 and the middle core 13.

[0017] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art will understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A pre-rotating and post-ejecting internal thread mold, comprising a water channel core (12), characterized in that: The water channel core (12) is fixedly installed with an inner core (11) on top. The inner core (11) is fixedly installed with a middle core (13) on the outside of the middle core (13) by a positioning pin. The middle core (13) is fitted with a threaded core (15) that can eject the workpiece formed on the outside of the inner core (11) and the middle core (13). The water channel core (12) is fitted with a gear core (14) for driving the threaded core (15) to rotate and rise. The gear core (14) and the threaded core (15) are fixedly connected by a positioning pin. The threaded core (15) and the gear core (14) are provided with a guide sleeve fixing seat (18) on the outside. The guide sleeve fixing seat (18) is fixedly installed with a guide sleeve (16) on the outside of the gear core (14) by a positioning pin. The guide sleeve fixing seat (18) is provided with a through groove (181) to facilitate the meshing of the rack and the gear core (14).

2. The internal thread mold that rotates first and then ejects later according to claim 1, characterized in that: It also includes a mold (19), the inner core (11), the middle core (13) and the threaded core (15) are located inside the mold (19), and the outer side of the threaded core (15) is provided with a sealing sleeve (17) to seal the inner wall of the mold (19). The sealing sleeve (17) is fixed on the guide sleeve fixing seat (18), and the guide sleeve fixing seat (18) is fixedly installed on the mold (19).

3. The internal thread mold that rotates first and then ejects later according to claim 1, characterized in that: The gear core (14) is provided with a slot (141) on the outside for driving the gear core (14) to lift and push out the workpiece.

4. The internal thread mold that rotates first and then ejects later according to claim 1, characterized in that: It also includes a lifting assembly (20), which consists of an upper plate (21), a lower plate (24), and a locking plate (22). The upper plate (21) and the lower plate (24) are fixedly connected by pins. The upper plate (21) and the lower plate (24) are provided with a first opening (211) and a second opening (242) for the gear core (14) and the water channel core (12) to pass through. The lower plate (24) is provided with a slide (241) that can connect to the locking groove (141). The locking plate (22) that can be locked into the locking groove (141) is slidably connected in the slide (241).

5. The internal thread mold that rotates first and then ejects later according to claim 4, characterized in that: A handle (23) is fixedly installed on the card plate (22) to facilitate pushing the card plate (22) into the card slot (141).

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