CN220995268U - Steel pipe tapered end mould - Google Patents

Abstract

The application discloses a steel tube lock head die, which relates to the technical field of injection dies and comprises an upper die and a lower die, wherein a movable cavity is formed in the top end of the lower die, a top plate for ejecting a steel tube lock head product is arranged in the movable cavity, a transmission screw rod for driving the top plate to linearly displace is further arranged in the movable cavity, one end of the transmission screw rod extends out of the lower die, and a driving assembly for driving the transmission screw rod to rotate is arranged outside the lower die. When the steel pipe lock head product is demolded, the upper die and the lower die are separated, and the top plate is driven to linearly displace by the transmission screw rod, so that the steel pipe lock head product can be conveniently ejected out, and the demolding is convenient.

Description

Steel pipe tapered end mould

Technical Field

The application relates to the technical field of injection molds, in particular to a steel tube lock mold.

Background

Steel pipes with connecting lock heads are commonly used in medical equipment, and the connecting lock heads are generally made of hard plastic materials, and when steel pipe lock head products are processed, a mold is generally adopted to carry out injection molding on parts of the connecting lock heads.

In a traditional die, an ejection mechanism is usually arranged in the die, and after the injection molding of a product is finished, the product is ejected through the ejection mechanism, so that the demolding of the product is realized. For example, in the chinese patent of the disclosure CN212554821U, a worm injection mold is disclosed that is convenient for demolding, comprising an upper mold and a lower mold that are mutually matched, the upper mold is provided with an a plate, the lower mold is provided with a B plate and a demolding mechanism, the B plate is provided with at least one row of cores, a plastic worm is provided in the core, the demolding mechanism comprises a gear transmission assembly and bevel gears located inside the gear transmission assembly, the gear transmission assembly is respectively and drivably connected with a plurality of bevel gears, and the bevel gears are drivably mounted at the bottom of the ejector tube. When the mold is used, the straight racks are driven in the whole mold opening action process, and the straight racks drive the whole gear transmission mechanism to operate, so that the ejector tube positioned outside the mold core ejects the plastic part, and the multi-cavity synchronous mold stripping is realized under the action of the gear transmission mechanism.

However, after the plastic part is ejected out of the mold core, the steel pipe lock head product is not convenient to eject.

Disclosure of utility model

In order to solve the problems, the application provides a steel tube lock head die.

The application provides a steel tube lock head die, which adopts the following technical scheme:

The utility model provides a steel pipe tapered end mould, includes mould and lower mould, go up the inside of mould and seted up movable chamber, movable intracavity is provided with the roof that is used for ejecting steel pipe tapered end product, movable intracavity still is provided with the drive lead screw that is used for driving the roof to carry out linear displacement, and the one end of drive lead screw stretches out the mould, the outside of going up the mould is provided with and is used for driving drive lead screw pivoted drive assembly.

Optionally, the outer wall of lower mould is fixed to be provided with the mounting bracket that is used for installing drive assembly, drive assembly includes the drive shaft, the drive shaft rotates to set up on the mounting bracket, be provided with drive gear and driving gear in the drive shaft, the last meshing of drive gear has the rack, the one end that the drive screw stretched out the mould is provided with the driven gear with driving gear meshing.

Optionally, the outer wall fixed mounting of last mould has the connecting block, the one end and the connecting block fixed connection of rack.

Optionally, the outside threaded connection of transmission lead screw has the sleeve, roof fixed mounting is in the outer wall of sleeve.

Optionally, the driving screw is provided with two groups, and the two groups of driving screws are controlled by the same driving gear.

Optionally, a protection plate is arranged on the mounting frame.

In summary, the present application includes at least one of the following beneficial effects:

1. According to the application, the upper die and the transmission screw rod are linked through the rack, when the upper die is separated from the lower die, the rack can linearly move to drive the driving gear and the driving gear to synchronously rotate, so that the driven gear is driven to rotate, and the transmission screw rod is driven to linearly move to drive the top plate, so that a steel tube lock head product is conveniently ejected out, the structure is simple, the time and difficulty of die disassembly can be shortened, and the die stripping efficiency of the die is effectively improved;

2. The whole of drive assembly sets up in the outside of mould, compares in traditional ejection mechanism, can reduce ejection mechanism's occupation space, makes the mould easily accomplish small and exquisite practicality.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic cross-sectional view of a top plate embodied in the present embodiment;

fig. 3 is a schematic view of the structure of the driven gear embodied in the present embodiment;

fig. 4 is a schematic cross-sectional view showing the drive screw in this embodiment.

Reference numerals illustrate: 1. an upper die; 2. a lower die; 21. a movable cavity; 3. a top plate; 4. a transmission screw; 41. a driven gear; 5. a drive assembly; 51. a drive shaft; 52. a drive gear; 53. a drive gear; 54. a rack; 6. a connecting block; 7. a sleeve; 8. a mounting frame; 9. and (5) protecting the plate.

Detailed Description

The application is described in further detail below with reference to fig. 1-4.

The embodiment of the application discloses a steel tube lock head die. Referring to fig. 1 and 2, the steel pipe lock mold comprises an upper mold 1 and a lower mold 2, wherein a movable cavity 21 is formed at the top end of the lower mold 2, and a top plate 3 for ejecting a steel pipe lock product is arranged in the movable cavity 21; a transmission screw 4 for driving the top plate 3 to linearly move is further arranged in the movable cavity 21, the transmission screw 4 is rotatably arranged on the lower die 2 through a bearing, and one end of the transmission screw 4 extends out of the lower die 2; the outside threaded connection of drive lead screw 4 has sleeve 7, and roof 3 passes through welded mode fixed mounting in the outer wall of sleeve 7, and during the die sinking, drive lead screw 4 rotation, sleeve 7 can carry out linear displacement along the axial of drive lead screw 4 to it is ejecting with the steel pipe tapered end product to drive roof 3, the drawing of patterns of being convenient for. The tapered end of steel pipe is the internal thread structure generally, and rotatory back of deviate from through mechanical transmission can take out the product, need not add other power such as hydro-cylinder or motor on the mould to the energy saving can produce to ordinary injection molding machine or the electronic injection molding machine of oilless cylinder power, the practicality is strong. The outside of lower mould 2 is provided with and is used for driving the pivoted drive assembly 5 of drive screw 4, through setting up drive assembly 5 in the outside of mould, compares in traditional ejecting structure, can enough reduce ejection mechanism to the occupation of mould inner space, can make things convenient for the dismouting of mould again to use, reduce cost.

Referring to fig. 1 and 3, the outer wall of the lower die 2 is fixedly provided with a mounting bracket 8 for mounting the driving assembly 5, and the mounting bracket 8 in the embodiment is fastened and fixed on the lower die 2 by bolts; the driving assembly 5 comprises a driving shaft 51, the driving shaft 51 is rotatably arranged on the mounting frame 8 through a bearing, a driving gear 52 and a driving gear 53 are arranged on the driving shaft 51, a rack 54 is meshed on the driving gear 52, a connecting block 6 is fixedly arranged on the outer wall of the upper die 1 through a bolt, one end of the rack 54 is fixedly connected with the connecting block 6 through the bolt, and when the die is opened, the driving shaft 51 is driven to rotate by pulling the rack 54 to perform linear displacement in the process of separating the upper die 1 from the lower die 2. The end of the driving screw 4 extending out of the upper die 1 is provided with a driven gear 41 meshed with the driving gear 53, and when the driving shaft 51 rotates, the driven gear 41 is driven to rotate, so that the driving screw 4 rotates.

Referring to fig. 3 and 4, in the present embodiment, two sets of driving screws 4 are provided, the two sets of driving screws 4 are arranged in parallel, and driven gears 41 on the two sets of driving screws 4 are meshed with the same driving gear 53, so as to be controlled by the same driving gear 53; the sleeves 7 on the two groups of transmission screws 4 are fixedly connected with the top plate 3, and the top plate 3 is driven to linearly displace through the simultaneous rotation of the two groups of transmission screws 4, so that the stability of the top plate 3 in the displacement process can be improved.

Referring to fig. 1 and 3, a protection plate 9 is arranged on the mounting plate, the protection plate 9 is fastened on one side of the mounting frame 8, which is away from the lower die 2, through a bolt lock, and one end of the driving shaft 51, which is away from the mounting frame 8, is rotatably mounted on the protection plate 9 through a bearing, so that the stability of the driving shaft 51 in the rotating process can be improved; in addition, shielding plate 9 shelters from in the side that drive gear 53 deviates from mounting bracket 8, can prevent foreign object contact drive gear 52, drive gear 53 and driven gear 41 to promote the security and the stability of mould in the die sinking in-process.

The implementation principle of the steel pipe lock head die provided by the embodiment of the application is as follows:

When the die is opened, the upper die 1 is separated from the lower die 2, the rack 54 can be driven to linearly displace, the driving shaft 51 is driven by the rack 54 to rotate to drive the driving gear 53 to rotate, so that the two groups of driven gears 41 and the driving screw 4 are driven to rotate, and then the steel tube lock head product is ejected through the linear movement of the top plate 3, and the die stripping work of the steel tube lock head product is facilitated.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (2)

1. The utility model provides a steel pipe tapered end mould, includes mould (1) and lower mould (2), its characterized in that: a movable cavity (21) is formed in the top end of the lower die (2), a top plate (3) for ejecting a steel tube lock head product is arranged in the movable cavity (21), a transmission screw (4) for driving the top plate (3) to linearly displace is further arranged in the movable cavity (21), one end of the transmission screw (4) extends out of the lower die (2), and a driving assembly (5) for driving the transmission screw (4) to rotate is arranged outside the lower die (2); the outer wall of the lower die (2) is fixedly provided with a mounting frame (8) for mounting a driving assembly (5), the driving assembly (5) comprises a driving shaft (51), the driving shaft (51) is rotatably arranged on the mounting frame (8), a driving gear (52) and a driving gear (53) are arranged on the driving shaft (51), a rack (54) is meshed on the driving gear (52), and a driven gear (41) meshed with the driving gear (53) is arranged at one end, extending out of the upper die (1), of the driving screw (4); the outer wall of the upper die (1) is fixedly provided with a connecting block (6), and one end of the rack (54) is fixedly connected with the connecting block (6); the external thread of the transmission screw rod (4) is connected with a sleeve (7), and the top plate (3) is fixedly arranged on the outer wall of the sleeve (7); the two groups of the transmission lead screws (4) are arranged, and the two groups of the transmission lead screws (4) are controlled by the same driving gear (53).

2. The steel pipe tapered end mold of claim 1, wherein: and a protection plate (9) is arranged on the mounting frame (8).