A rapid connection device for a core-pulling die

Abstract

The present invention discloses a quick connection device for a core-pulling die, which includes a rotary power head of the equipment, a core-pulling die, and a die pull rod of the core-pulling die. The core-pulling die is connected to the rotary power head through a flange assembly, and the die pull rod and the equipment pull rod are snap-connected through a snap assembly in the central through hole of the flange assembly. For the die pull rods with different length specifications, when changing the die, the quick connection device for the core-pulling die of the present invention can quickly replace the die pull rod without disassembling the equipment, which is time-saving and labor-saving, greatly reducing the technical difficulty of the operator; and avoiding the damage to the equipment caused by frequent disassembly.

Description

Technical Field

[0001] The invention relates to a mould, in particular to a quick connection device of a core-pulling mould. Background Art

[0002] The core-pulling mold set at the front end of the rotating power head of the equipment requires an axial pulling force to lock the mold when tightening the workpiece. According to the existing technical solution, this axial pulling force is provided by the cylinder of the equipment, which requires the mold tie rod of the core-pulling mold to be directly connected to the cylinder of the equipment. The cylinder is generally set inside the equipment, and because of the differences between each mold, the length specifications of the mold tie rod are also different. When changing the mold, it is necessary to disassemble the equipment to expose the cylinder, then disassemble the old mold tie rod, and replace and fix the new mold tie rod. This structure of the prior art leads to the following defects when replacing the core-pulling mold:

[0003] First, it is time-consuming and laborious, and also has certain technical difficulties for the operator;

[0004] 2. Frequent disassembly of equipment seriously affects the service life of the equipment. Summary of the invention

[0005] The purpose of the present invention is to provide a core-pulling mold quick connection device. For mold tie rods with different length specifications, the mold tie rods can be quickly replaced without disassembling the equipment when changing the mold, which saves time and effort and greatly reduces the technical difficulty of the operator; and avoids damage to the equipment caused by frequent disassembly.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A core-pulling mold quick connection device includes a rotating power head of the equipment, a core-pulling mold, and a mold pull rod of the core-pulling mold. The core-pulling mold and the rotating power head are connected through a flange assembly, and the mold pull rod and the equipment pull rod are snap-connected in the central through hole of the flange assembly through a snap assembly.

[0008] The flange assembly includes: a lower flange, an upper flange, and a flange cover located therebetween; a through groove is provided in the middle of the lower flange along the left-right direction; the snap assembly is arranged in the through groove; the upper end of the upper flange is screwed to the lower end of the core-pulling mold; the upper flange, the flange cover and the lower flange are connected to the equipment flange by bolts; and the equipment flange is connected to the rotating power head by bolts.

[0009] The buckle assembly includes: a rear slider and a front slider slidably arranged in the through slot, a first cross brace extending forward is provided at the left end of the rear slider, a second cross brace extending forward is provided at the right end of the rear slider, a third cross brace extending backward is provided at the right end of the front slider, a fourth cross brace extending backward is provided at the left end of the front slider, a left spring is provided between the first cross brace and the left end of the front slider, a right spring is provided between the third cross brace and the right end of the rear slider, at least one longitudinal positioning slideway A is provided on the left side of the second cross brace, and the outer side slide of the right arc buckle is provided with a spring. Block B is inserted into the longitudinal positioning slide A, and at least one longitudinal positioning slide C is provided on the side of the fourth cross brace. The outer slider D of the left arc buckle is inserted into the longitudinal positioning slide C, and a slide rod is inserted into the through hole at the upper end of the equipment pull rod. The left arc buckle and the right arc buckle are slidably sleeved on the left and right sides of the slide rod, and the two ends of the slide rod are limited in the inner hole of the lower flange; flat teeth are provided on the left and right ends of the inner side of the rear slider and the inner side of the front slider, and a toggle gear is meshed between the left end flat teeth of the two, and a synchronous gear is meshed between the right end flat teeth of the two.

[0010] The lower end of the mold pull rod is provided with an annular groove, the inner side of the left arc buckle is provided with an arc protrusion A engaged with the annular groove, and the inner side of the right arc buckle is provided with an arc protrusion B engaged with the annular groove.

[0011] An annular locking sleeve connected to the lower flange is sleeved in the inner hole of the equipment flange. When the equipment pull rod moves down to tighten the core-pulling mold, both ends of the slide rod are limited to the upper circular opening of the annular locking sleeve, and the rear slider and the front slider are limited to the lower circular opening of the annular locking sleeve.

[0012] Compared with the prior art, the beneficial effects of the present invention are: due to the adoption of the above technical scheme, the core-pulling mold and the rotary power head are connected by a flange assembly, and the mold pull rod and the equipment pull rod are snap-connected in the central through hole of the flange assembly by a snap-on assembly. This structure allows the mold pull rods with different length specifications to be quickly replaced when changing molds without disassembling the equipment, which saves time and effort and greatly reduces the technical difficulty of the operator; it avoids damage to the equipment caused by frequent disassembly.

[0013] A further beneficial effect is that by adopting the annular locking sleeve structure, when the core pulling mold is in the tightened state, the left arc buckle and the right arc buckle can be locked in the annular groove at the lower end of the mold pull rod, which is very firm and reliable. In particular, the left arc buckle and the right arc buckle can slide up and down in the longitudinal positioning slide and slide left and right in the through groove in the middle of the lower flange, and the opening and closing are very flexible and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 yes Figure 1 A cross-sectional view of the matching structure of the middle flange assembly and the buckle assembly;

[0016] Figure 3 yes Figure 1 A schematic diagram of the matching structure of the middle rear slider and the front slider;

[0017] Figure 4 yes Figure 1 The structural diagram of the left arc buckle and the right arc buckle;

[0018] Figure 5 yes Figure 1 Schematic diagram of the assembly structure when the core-pulling mold is not tightened;

[0019] Figure 6 yes Figure 5 A magnified view of part I;

[0020] Figure 7 yes Figure 6 Schematic diagram of the structure when the core-pulling mold is in a tightened state;

[0021] Figure 8 yes Figure 6 Schematic diagram of the structure when the buckle assembly is in the open state. DETAILED DESCRIPTION

[0022] In order to make the technical solution of the present invention clearer, the following Figures 1 to 8 It should be understood that the specific implementation methods described in this specification are only for explaining the present invention, and are not intended to limit the protection scope of the present invention.

[0023] The present invention is a core-pulling mold quick connection device, comprising a rotating power head 5-2 of the equipment, a core-pulling mold 4-2, and a mold pull rod 4-1 of the core-pulling mold 4-2. The core-pulling mold 4-2 and the rotating power head 5-2 are connected by a flange assembly, and the mold pull rod 4-1 and the equipment pull rod 5-3 are snap-connected in the central through hole of the flange assembly by a snap assembly.

[0024] Preferably, the flange assembly comprises: a lower flange 1-1, an upper flange 1-3, and a flange cover 1-2 located therebetween, a through groove 1-1-1 is provided in the middle of the lower flange 1-1 along the left-right direction, the snap assembly is arranged in the through groove 1-1-1, the upper end of the upper flange 1-3 is screwed to the lower end of the core-pulling mold 4-2, the upper flange 1-3, the flange cover 1-2 and the lower flange 1-1 are connected to the equipment flange 5-1 by bolts, and the equipment flange 5-1 is connected to the rotary power head 5-2 by bolts. The buckle assembly includes: a rear slider 2-1 and a front slider 2-2 slidably arranged in the through groove 1-1-1, a first cross brace 2-1-1 extending forward is provided at the left end of the rear slider 2-1, a second cross brace 2-1-2 extending forward is provided at the right part of the rear slider 2-1, a third cross brace 2-2-1 extending backward is provided at the right end of the front slider 2-2, a fourth cross brace 2-2-2 extending backward is provided at the left part of the front slider 2-2, a left spring 2-3 is provided between the first cross brace 2-1-1 and the left end of the front slider 2-2, a right spring 2-4 is provided between the third cross brace 2-2-1 and the right end of the rear slider 2-1, at least one longitudinal positioning slideway A2-1-5 is provided on the left side of the second cross brace 2-1-2, and a right arc buckle 2-9 is provided. The outer slider B2-9-1 is inserted into the longitudinal positioning slide A2-1-5, and at least one longitudinal positioning slide C2-2-5 is provided on the side of the fourth cross brace 2-2-2. The outer slider D2-8-1 of the left arc buckle 2-8 is inserted into the longitudinal positioning slide C2-2-5. The through hole at the upper end of the equipment pull rod 5-3 is penetrated by a slide bar 2-10. The left arc buckle 2-8 and the right arc buckle 2-9 are slidably sleeved on the left and right sides of the slide bar 2-10, and both ends of the slide bar 2-10 are limited in the inner hole of the lower flange 1-1; flat teeth are provided on the left and right ends of the inner side of the rear slider 2-1 and the inner side of the front slider 2-2, and a toggle gear 2-5 is meshed between the left end flat teeth of the two, and a synchronous gear 2-7 is meshed between the right end flat teeth of the two. The lower end of the mold tie rod 4-1 is provided with an annular groove 4-1-1, the inner side of the left arc buckle 2-8 is provided with an arc protrusion A2-8-2 engaged with the annular groove 4-1-1, and the inner side of the right arc buckle 2-9 is provided with an arc protrusion B2-9-2 engaged with the annular groove 4-1-1. An annular locking sleeve 2-11 connected to the lower flange 1-1 is sleeved in the inner hole of the equipment flange 5-1. When the equipment tie rod 5-3 moves downward to tighten the core-pulling mold 4-2, the two ends of the slide rod 2-10 are limited to the upper circular opening 2-11-1 of the annular locking sleeve 2-11, and the left arc buckle 2-8 and the right arc buckle 2-9 are limited to the lower circular opening 2-11-2 of the annular locking sleeve 2-11.

[0025] Adjustment of the toggle gear 2-5: The toggle gear 2-5 is installed on the toggle gear shaft 2-6, and the inner hole at the upper end is hexagonal, which is convenient for the insertion of a hexagonal wrench. The hexagonal wrench sockets above the toggle gear 2-5 correspond to the flange cover 1-2 and the upper flange 1-3, and the toggle gear 2-5 is toggled by a hexagonal wrench. When the core-pulling mold is not tightened, when the toggle gear 2-5 is turned clockwise, the rear slider 2-1 moves to the right, and the front slider 2-2 moves to the left. The rear slider 2-1 and the front slider 2-2 drive the left arc buckle 2-8 and the right arc buckle 2-9 to move outward and open, and the buckle connection between the mold pull rod 4-1 and the equipment pull rod 5-3 is released. At this time, the left spring 2-3 and the right spring 2-4 are both in a compressed state; release the toggle gear 2-5, and under the elastic force of the left spring 2-3 and the right spring 2-4, the left arc buckle 2-8 and the right arc buckle 2-9 move inward and engage. When replacing other molds, you only need to adjust the toggle gear 2-5.

Claims

1. A core-pulling mold quick connection device, comprising a rotary power head (5-2) of an equipment, a core-pulling mold (4-2), and a mold pull rod (4-1) of the core-pulling mold (4-2), wherein the core-pulling mold (4-2) and the rotary power head (5-2) are connected via a flange assembly, and the mold pull rod (4-1) and the equipment pull rod (5-3) are snap-connected in a central through hole of the flange assembly via a snap-on assembly, wherein the flange assembly include: A lower flange (1-1), an upper flange (1-3), and a flange cover (1-2) located therebetween; a through groove (1-1-1) is provided in the middle of the lower flange (1-1) along the left-right direction; the buckle assembly is arranged in the through groove (1-1-1); the upper end of the upper flange (1-3) is screwed to the lower end of a core-pulling mold (4-2); the upper flange (1-3), the flange cover (1-2), and the lower flange (1-1) are connected to the equipment flange (5-1) by bolts; and the equipment flange (5-1) is connected to the rotary power head (5-2) by bolts. The buckle assembly comprises: a rear slider (2-1) and a front slider (2-2) slidably arranged in the through slot (1-1-1); a first cross brace (2-1-1) extending forward is provided at the left end of the rear slider (2-1); a second cross brace (2-1-2) extending forward is provided at the right end of the rear slider (2-1); a third cross brace (2-2-1) extending backward is provided at the right end of the front slider (2-2); a fourth cross brace (2-2-2) extending backward is provided at the left end of the front slider (2-2); A left spring (2-3) is provided between the left and right ends of the third cross brace (2-2-1), a right spring (2-4) is provided between the right end of the third cross brace (2-2-1) and the rear slider (2-1), at least one longitudinal positioning slideway A (2-1-5) is provided on the left side of the second cross brace (2-1-2), an outer slider B (2-9-1) of the right circular arc buckle (2-9) is inserted into the longitudinal positioning slideway A (2-1-5), at least one longitudinal positioning slideway C (2-2-5) is provided on the other side of the fourth cross brace (2-2-2), and an outer slider D (2-8-1) of the left circular arc buckle (2-8) is inserted into the longitudinal positioning slideway In the longitudinal positioning slideway C (2-2-5), a slide bar (2-10) is inserted into the through hole at the upper end of the equipment pull rod (5-3), and a left arc buckle (2-8) and a right arc buckle (2-9) are slidably mounted on the left and right sides of the slide bar (2-10), and both ends of the slide bar (2-10) are limited in the inner hole of the lower flange (1-1); flat teeth are provided on the left and right ends of the inner side of the rear slide block (2-1) and the inner side of the front slide block (2-2), and a toggle gear (2-5) is meshed between the left end flat teeth of the two, and a synchronous gear (2-7) is meshed between the right end flat teeth of the two.

2. The core-pulling mold quick connection device according to claim 1, Features: The lower end of the mold pull rod (4-1) is provided with an annular groove (4-1-1), the inner side of the left arc buckle (2-8) is provided with an arc protrusion A (2-8-2) engaged with the annular groove (4-1-1), and the inner side of the right arc buckle (2-9) is provided with an arc protrusion B (2-9-2) engaged with the annular groove (4-1-1).

3. The core-pulling mold quick connection device according to claim 2, Features: An annular locking sleeve (2-11) connected to the lower flange (1-1) is sleeved in the inner hole of the equipment flange (5-1); when the equipment pull rod (5-3) moves downward to tighten the core-pulling mold (4-2), both ends of the sliding rod (2-10) are limited to the upper circular opening (2-11-1) of the annular locking sleeve (2-11), and the left arc buckle (2-8) and the right arc buckle (2-9) are limited to the lower circular opening (2-11-2) of the annular locking sleeve (2-11).

Images