CN210791907U

CN210791907U - Side screw thread device of loosing core

Info

Publication number: CN210791907U
Application number: CN201921546226.6U
Authority: CN
Inventors: 陈祝君; 严建华
Original assignee: Zhangjiagang Tianjiang Precision Mould Co ltd
Current assignee: Zhangjiagang Tianjiang Precision Mould Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-19
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a can set up the side screw thread device of loosing core of screw thread mouth in side of cavity plastic products, include: the gear box is arranged on the fixed support in a sliding mode through guide strips arranged in the horizontal direction, a core bar is movably arranged in an end plate at one end of the gear box in a penetrating mode, a driven bevel gear is arranged at one end of the core bar, a threaded section is arranged at the other end of the core bar, a bushing is arranged on the fixed support, threads which are matched with each other are arranged on the core bar and in the bushing, a core bar driving mechanism is arranged on the gear box, a driving shaft of the core bar driving mechanism extends into the gear box, and a driving bevel gear meshed with the driven bevel gear is arranged at; the core rod is movably provided with a mandril in a penetrating way, the wheel box is provided with a mandril driving mechanism, and the end part of the mandril is provided with a cutting edge. Side screw thread device of loosing core applicable in side need set up the plastic products's of screw thread mouth mould.

Description

Side screw thread device of loosing core

Technical Field

The utility model relates to a mould of plastic drum, concretely relates to side screw thread device of loosing core in plastic drum's mould.

Background

At present, a threaded opening is not required to be formed in the side of a traditional hollow plastic opening such as a plastic barrel, and therefore a side thread core pulling device is not arranged in a traditional plastic barrel mould.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provided is a side screw core pulling device which can arrange a screw thread opening on the side of a hollow plastic product.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a side screw thread core pulling device, comprising: the device comprises a fixed support, a gear box is arranged on the fixed support in a sliding mode through a guide strip arranged in the horizontal direction, a core bar for side thread core pulling is movably arranged in an end plate at one end of the gear box in a penetrating mode, a driven bevel gear is arranged at the end portion, at one end of the gear box, of the core bar, a thread section is arranged at the other end of the core bar, a bushing matched with the core bar is arranged on the fixed support, matched threads are arranged on the core bar and the bushing, a core bar driving mechanism used for driving the core bar to rotate is arranged on the gear box, a driving shaft of the core bar driving mechanism extends into the gear box, a driving bevel gear is arranged at the end portion of the driving shaft, and the driving bevel; the gear box is provided with a gear box, the gear box is provided with a hollow core rod, a push rod driving mechanism for driving the push rod to move back and forth along the axial direction of the core rod is movably arranged in the hollow core rod in a penetrating mode, and the end portion of the push rod is provided with a cutting edge.

Preferably, in the side screw core pulling device, the core rod is movably arranged in the bushing through a needle bearing.

As a preferable scheme, in the side screw thread core pulling device, a specific connection mode of the driven bevel gear and the core rod is as follows: the driven bevel gear is provided with a mounting hole matched with the core bar, the side wall of the mounting hole is provided with a key positioning groove, the core bar is provided with a key mounting groove, and the core bar is arranged in the driven bevel gear after a key is placed on the core bar.

As a preferable scheme, in the side thread core pulling device, the core bar is further movably disposed in an end plate at one end of the gear box through a pair of flat bearings, one end surface of the driven bevel gear abuts against the corresponding flat bearing, and the core bar is provided with a locking thread section at the end surface at the other side of the driven bevel gear, and the locking thread section is provided with a lock nut, so that the lock nut is locked on the driven bevel gear.

As a preferable scheme, in the side screw core pulling device, the core bar driving mechanism is a motor, and is arranged on a top plate of the gear box, i.e. a side plate on the top side of the gear box, through a motor adjusting plate.

As a preferable scheme, in the side thread core pulling device, the ejector rod driving mechanism is a driving cylinder arranged on an end plate on one side corresponding to the gear plate, and a piston rod of the driving cylinder is connected with the ejector rod.

The utility model has the advantages that: the utility model discloses set up the gear box on the fixed bolster of mould side, wear to establish hollow core bar in the gear box, the core bar is provided with driven bevel gear on the one end tip that the core bar is located the gear box, and the other end tip of core bar is provided with the screw thread section, sets up on the gear box and is used for driving core bar pivoted core bar actuating mechanism to let core bar actuating mechanism's drive shaft stretch into the gear box, the tip of drive shaft set up with driven bevel gear engaged with drive bevel gear, realized setting up the mesh of screw thread mouth on hollow plastic products, simultaneously, wear to establish the ejector pin through the activity in the core bar, be provided with the ejector pin actuating mechanism who is used for driving the ejector pin along the axial back-and-forth movement of core bar on the gear box, realized the purpose of punching on. The whole structure is very compact, stable and reliable.

Drawings

Fig. 1 is a schematic view of the present invention in a partial cross-sectional structure.

Fig. 2 is a partially sectional structural view in a top view of fig. 1.

Fig. 3 is a partial structural schematic view of fig. 1.

Fig. 4 is a schematic diagram of the right-side structure of fig. 1.

The reference numerals in fig. 1 to 4 are: 1. the device comprises a driving motor, 2, an adjusting block, 3, a driving bevel gear, 4, a driving cylinder, 5, a gear box, 50, a box body, 51, a front end plate, 52, a rear end plate, 6, a push rod, 61, a cutting edge, 7, a lining, 8, a core rod, 81, a driven bevel gear, 82, a plane bearing, 83, a needle bearing, 84, a locking nut, 85, a thread section, 9, a sleeve cap, 10, a fixing support, 11, a guide strip, 18 and a plastic barrel.

Detailed Description

Referring to fig. 1 to 4, a plastic barrel is taken as an example to describe in detail a specific embodiment of a side screw thread core pulling device of the present invention:

as shown in fig. 1 and fig. 2, a side screw thread device of loosing core, include: a core bar 8 and a fixing support 10 for side thread core pulling, as shown in fig. 4, a gear box 5 is slidably arranged on the fixing support 10 through a guide bar 11 arranged in a horizontal direction, and the gear box 5 includes: a case 50, a front end plate 51 provided at the front end, and a rear end plate 52 provided at the rear end; the core bar 8 is movably arranged in the front end plate 51 of the gear box 5 through a pair of plane bearings 82 positioned in the front and back sides of the front end plate 51, the fixed support 10 is provided with a bush 7 matched with the core bar 8, and the core bar 8 and the bush 7 are provided with matched threads (belonging to the conventional technology in the field and not shown in the figure); a driven bevel gear 81 is arranged at one end of the core bar 8 in the gear box 5, a thread section 85 is arranged at the other end of the core bar 8, and the specific arrangement mode of the core bar 8 is as follows: one side end face of the driven bevel gear 81 is attached to a corresponding plane bearing 82, the other side end face of the driven bevel gear 81 is provided with a locking thread section of the core bar 8, the driven bevel gear 81 is provided with a mounting hole matched with the core bar 8, the side wall of the mounting hole is provided with a key positioning groove, the core bar 8 is provided with a key mounting groove, the key positioning groove and the key mounting groove are aligned with the key positioning groove and are arranged in the driven bevel gear 81 after a key is arranged in the key mounting groove of the core bar 8 (the key positioning groove, the key mounting groove and the corresponding key belong to the conventional technology in the field, and are not shown in the figure), and then a locking nut 83 is arranged on the locking thread section and is locked on the driven bevel gear 81; a driving motor 1 serving as a core bar driving mechanism for driving the core bar 8 to rotate is arranged on a top plate (a side plate on the top side) of the box body 50 of the gear box 5 through an adjusting block 2, a driving shaft of the driving motor 1 extends into the box body 50 of the gear box 5, and a driving bevel gear 3 meshed with the driven bevel gear 81 is arranged at the end part of the driving shaft; the core bar 8 is a hollow structure and movably penetrates through the ejector rod 6, a driving cylinder 4 used as an ejector rod driving mechanism for driving the ejector rod 6 to move back and forth along the axial direction of the core bar 8 is arranged on the rear end plate 52 of the gear box 5, a piston rod of the driving cylinder 4 is connected with one end of the ejector rod 6, and a cutting edge 61-see fig. 3 is arranged at the end part of the other end of the ejector rod 6. In this embodiment, the fixing bracket is further provided with a bushing 7, and the core rod 8 is movably arranged in the bushing 7 through a needle bearing 83.

In practical use, the driving motor 1 rotates, the driving bevel gear 3 and the driven bevel gear 81 drive the core bar 8 to rotate, so that the core bar 8 rotates in the thread of the bushing 7, the core bar 8 and the gear box 5 move forward or backward together under the action of the guide strip 11, and side thread core pulling, namely insertion and withdrawal of the thread section 85 of the core bar 8, are realized; if the plastic barrel 18 needs to be punched, the driving cylinder 4 needs to be started before the side screw core, namely the thread section 85 of the core rod 8, exits, so that the cutting edge 61 at the end part of the ejector rod 6 punches the plastic barrel 18 in the process of extending forwards. When only one unthreaded hole is required to be arranged on the side of the plastic barrel 18, the cap 9 is only required to be covered on the threaded section 85 at the end part of the core rod 8.

In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the shapes, structures, features and spirit of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A side screw thread core pulling device, comprising: fixed bolster, its characterized in that: the fixed support is provided with a gear box in a sliding manner through a guide strip arranged in the horizontal direction, a core bar for side thread core pulling is movably arranged in an end plate at one end of the gear box in a penetrating manner, a driven bevel gear is arranged at the end part of one end of the core bar in the gear box, a thread section is arranged at the other end of the core bar, a bushing matched with the core bar is arranged on the fixed support, mutually matched threads are arranged on the core bar and the bushing, a core bar driving mechanism for driving the core bar to rotate is arranged on the gear box, a driving shaft of the core bar driving mechanism extends into the gear box, a driving bevel gear is arranged at the end part of the driving shaft, and the driving bevel gear is meshed with the driven bevel gear; the gear box is provided with a gear box, the gear box is provided with a hollow core rod, a push rod driving mechanism for driving the push rod to move back and forth along the axial direction of the core rod is movably arranged in the hollow core rod in a penetrating mode, and the end portion of the push rod is provided with a cutting edge.

2. The side thread core pulling device according to claim 1, wherein the core rod is movably arranged in the bushing through a needle bearing.

3. The side thread core pulling device according to claim 1, wherein the specific connection mode of the driven bevel gear and the core rod is as follows: the driven bevel gear is provided with a mounting hole matched with the core bar, the side wall of the mounting hole is provided with a key positioning groove, the core bar is provided with a key mounting groove, and the core bar is arranged in the driven bevel gear after a key is placed on the core bar.

4. The side screw thread core pulling device according to claim 3, wherein the core rod is movably arranged in an end plate at one end of the gear box through a pair of plane bearings, one end face of the driven bevel gear abuts against the corresponding plane bearing, the core rod is provided with a locking thread section at the other end face of the driven bevel gear, and a locking nut is arranged on the locking thread section, so that the locking nut is locked on the driven bevel gear.

5. The side screw core pulling device according to any one of claims 1 to 4, wherein the core bar driving mechanism is a motor, and an adjusting plate is arranged on a top plate of the gearbox, namely a side plate on the top side of the gearbox through the motor.

6. The side screw thread core pulling device according to any one of claims 1 to 4, wherein the ejector rod driving mechanism is a driving air cylinder arranged on an end plate on one side corresponding to the gear plate, and a piston rod of the driving air cylinder is connected with the ejector rod.