Portal frame type die quick-changing device

Abstract

The utility model discloses a portal frame type mold quick-changing device which comprises a portal frame, a hoisting mechanism installed on the portal frame and a mold installed on the hoisting mechanism, the portal frame comprises a front cross beam located at the front end of the portal frame, and the front cross beam extends in the left-right direction; the hoisting mechanism comprises a pair of hoisting units which are oppositely arranged left and right, each hoisting unit comprises an upper hoisting assembly, a mold hoisting support and a lower hoisting assembly, the upper hoisting assemblies are detachably installed on the front cross beam, and the mold hoisting supports are located below the upper hoisting assemblies and detachably connected with the upper hoisting assemblies; at least one waist groove extending in the front-back direction is formed in the mold hanging support, and at least part of the at least one waist groove is located on the front side of the portal frame; at least part of the lower hoisting assembly is matched with the at least one waist groove, and the lower hoisting assembly is configured to be mounted below the mold hoisting support in a manner of moving back and forth along the at least one waist groove; and the mold is detachably mounted on the lower hoisting assembly.

Description

Technical Field

[0001] The present application relates to the technical field of extrusion equipment, and in particular to a gantry-type mold quick-change device. Background Art

[0002] Since most gantry models on the market are installed with a vertical lifting plate, the mold is directly below the gantry. When replacing the mold, after the crane lifts the mold, the slings are across the two sides of the gantry, and the mold cannot be moved out of the gantry. The mold needs to be lifted by the crane and placed on the ground, then pushed down, and then lifted by the slings again to drag the mold out of the gantry before it can be lifted out for mold replacement. The space below the gantry is very small, and the mold is very hot. It is very troublesome and dangerous for people to operate below, which wastes a lot of time. Summary of the invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide a gantry-type mold quick-change device.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a gantry-type mold quick-change device, comprising:

[0005] The gantry frame comprises a front crossbeam located at the front end of the gantry frame, and the front crossbeam extends in the left-right direction;

[0006] A hoisting mechanism, comprising a pair of hoisting units arranged opposite to each other on the left and right sides, each of the hoisting units comprising an upper hoisting assembly, a mold hanging support and a lower hoisting assembly, the upper hoisting assembly being detachably mounted on the front crossbeam, the mold hanging support being located below the upper hoisting assembly and being detachably connected to the upper hoisting assembly, the mold hanging support being provided with at least one waist groove extending in the front-to-back direction, at least part of the at least one waist groove being located at the front side of the gantry; at least part of the lower hoisting assembly being matched with the at least one waist groove, and the lower hoisting assembly being configured to be mounted below the mold hanging support so as to be movable back and forth along the at least one waist groove; and

[0007] The mold is detachably mounted on the lower hanging assembly.

[0008] In the above technical solution, it is further preferred that the upper hanging assembly includes an upper mounting plate and a lower mounting plate arranged relatively to each other up and down and a plurality of first screw rod assemblies connected between the upper mounting plate and the lower mounting plate, the upper mounting plate is located above the front cross beam, and the lower mounting plate is located below the front cross beam.

[0009] In the above technical solution, it is further preferred that the mold suspension support includes an upper end plate connected to the lower mounting plate, a lower end plate located below the upper end plate, a support column vertically connected between the upper end plate and the lower end plate, and an oblique rib obliquely connected between the support column and the lower end plate, the oblique rib is inclined forward from top to bottom, and an angle of 30°-70° is formed between the oblique rib and the lower end plate, and the at least one waist groove is formed on the lower end plate.

[0010] In the above technical solution, it is further preferred that in the front-to-back direction, the length of the lower end plate is greater than the length of the upper end plate, and the front end portion of the lower end plate is located in front of the front end portion of the upper end plate, the support column is located on the rear side of the oblique rib, the oblique rib connects the upper end portion of the support column and the front end portion of the lower end plate, and at least part of the lower end plate and at least part of the oblique rib are located on the front side of the gantry.

[0011] In the above technical solution, it is further preferred that the thickness of the lower end plate is 30-40 mm.

[0012] In the above technical scheme, it is further preferred that the lower hanging assembly includes at least one second screw rod assembly matched with the at least one waist groove and a lower hanging plate connected to the at least one second screw rod assembly, each of the second screw rod assemblies includes a second screw rod passed through the waist groove and a pair of locking nuts matched with the second screw rod thread, and the pair of locking nuts are respectively located on the upper and lower sides of the lower end plate; the lower hanging plate is matched with the second screw rod thread, and the lower hanging plate is provided with a mounting hole for at least part of the mold to pass through.

[0013] In the above technical solution, it is further preferred that the outer diameter of the second screw rod is 30mm-40mm.

[0014] In the above technical solution, it is further preferred that the mold includes a mounting column extending in the left-right direction, and the mounting column is simultaneously inserted into the mounting holes of a pair of lower hanging plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The hoisting mechanism of the present application allows the mold to be hoisted under the gantry in a movable manner along the front-to-back direction. When replacing the mold, the mold can be moved out of the gantry at one time and then hoisted out, thereby shortening the mold replacement time, reducing the operating difficulty of the staff, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A front view of a mold quick-change device provided in an embodiment of the present application;

[0018] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0019] Figure 3 for Figure 1 A side view of a mold quick change device in FIG.

[0020] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the mold support.

[0021] Wherein: 100, mold quick-change device; 10, gantry; 1, top frame; 11, front crossbeam; 12, rear crossbeam; 2, support foot; 20, lifting mechanism; 3, upper lifting assembly; 31, upper mounting plate; 32, lower mounting plate; 33, first screw assembly; 331, first screw; 332, locking nut; 4, mold suspension support; 41, upper end plate; 42, lower end plate; 420, waist groove; 43, support column; 44, oblique rib; 5, lower lifting assembly; 51, second screw assembly; 511, second screw; 512, locking nut; 52, lower lifting plate; 520, mounting hole; 30, mold; 6, mounting column. DETAILED DESCRIPTION

[0022] To describe the technical content, structural features, achieved purpose and effect of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0023] The present application embodiment provides a gantry type mold quick change device, such as Figure 1 As shown, the mold quick-change device 100 includes: a gantry 10 , a hoisting mechanism 20 installed on the gantry 10 , and a mold 30 installed on the hoisting mechanism 20 .

[0024] like Figure 1 , 3As shown, the gantry 10 includes a top frame 1 and a plurality of supporting legs 2, each supporting leg 2 extending in the up-down direction, and the top frame 1 is horizontally supported on the ground by the plurality of supporting legs 2; the top frame 1 includes a front crossbeam 11 and a rear crossbeam 12 opposite to each other front and rear, and the front crossbeam 11 is located at the front end of the gantry 10 and extends in the left-right direction.

[0025] The lifting mechanism 20 includes a pair of lifting units arranged opposite to each other on the left and right sides, each lifting unit includes an upper lifting component 3, a mold hanging support 4 and a lower lifting component 5, the upper lifting component 3 is detachably mounted on the front cross beam 11, the mold hanging support 4 is detachably connected to the bottom of the upper lifting component 3, and the lower lifting component 5 can be mounted on the mold hanging support 4 so as to be movable in the front and rear directions.

[0026] The upper hanging assembly 3 includes an upper mounting plate 31 and a lower mounting plate 32 which are arranged opposite to each other in an upper and lower manner, and a plurality of first screw rod assemblies 33 connected between the upper mounting plate 31 and the lower mounting plate 32. The upper mounting plate 31 is located above the front cross beam 11, and the lower mounting plate 32 is located below the front cross beam 11. Each first screw rod assembly 33 includes a first screw rod 331 which passes through both the upper mounting plate 31 and the lower mounting plate 32, and a locking nut 332 which locks the first screw rod 331 to the upper mounting plate 31 and the lower mounting plate 32. The upper mounting plate 31 and the lower mounting plate 32 are fixed to the front cross beam 11 through a plurality of first screw rod assemblies 33.

[0027] like Figure 3 , 4 As shown, the mold suspension support 4 includes an upper end plate 41 connected to the lower mounting plate 32, a lower end plate 42 located below the upper end plate 41, a support column 43 vertically connected between the upper end plate 41 and the lower end plate 42, and an oblique rib 44 obliquely connected between the support column 43 and the lower end plate 42. The upper end plate 41 is fixedly connected to the lower mounting plate 32 through a plurality of first screw rod assemblies 33. In the front-to-back direction, the length of the lower end plate 42 is greater than that of the upper end plate 41, and the front end of the lower end plate 42 is located at the front side of the front end of the upper end plate 41. The support column 43 is connected between the upper end plate 41 and the lower end plate 42 extending in the up-down direction, and the oblique rib 44 is connected between the upper end of the support column 43 and the front end of the lower end plate 42 in an inclined manner from top to bottom. The oblique rib 44 is arranged at the front side of the support column 43, and an angle of 30°-70° is formed between the oblique rib 44 and the lower end plate 42. At least part of the lower end plate 42 and at least part of the oblique rib 44 are located at the front side of the gantry 10. The support column 43 and the oblique rib 44 connect the upper end plate 41 and the lower end plate 42, and strengthen the hoisting strength of the mold suspension support 4, so that the mold 30 can be safely hoisted on the front crossbeam 11.

[0028] At least one waist slot 420 is formed in the lower end plate 42. The waist slot 420 extends in the front-rear direction and is formed avoiding the support column 43 and the diagonal rib 44. At least a part of the waist slot 420 is located on the front side of the gantry 10. In the embodiment of the present application, the length of the waist slot 420 in the front-rear direction is 480 mm.

[0029] As Figure 2 , 3 shown, the lower lifting assembly 5 includes at least one second lead screw assembly 51 that cooperates with at least one waist slot 420 and a lower lifting plate 52 connected to at least one second lead screw assembly 51. Each second lead screw assembly 51 includes a second lead screw 511 passing through the waist slot 420 and a pair of locking nuts 512 threadedly engaged with the second lead screw 511. The pair of locking nuts 512 are respectively located on the upper side and the lower side of the lower end plate 42. When the pair of locking nuts 512 are tightened, the second lead screw 511 is locked on the lower end plate 42 and cannot move back and forth along the waist slot 420. When the locking nut 512 on the lower side of the lower end plate 42 is loosened downward, the second lead screw 511 can move back and forth along the waist slot 420 under the drive of an external force. The lower lifting plate 52 is threadedly engaged with the second lead screw 511 to be fixed to the lower end of the second lead screw 511.

[0030] As Figure 2-4 shown, in order to strengthen the lifting strength of the lifting mechanism 20, in the embodiment of the present application, two waist slots 420 are formed on each lower end plate 42 opposite to each other in the left-right direction. Each waist slot 420 is provided with two second lead screw assemblies 51. Each lower lifting plate 52 is fixedly connected to four second lead screw assemblies 51. The thickness of the lower end plate 42 is 30 - 40 mm, and the outer diameter of the second lead screw 511 is 30 mm - 40 mm.

[0031] As Figure 1 , 3 shown, each lower lifting plate 52 is provided with a mounting hole 520 for at least a part of the mold 30 to pass through. The mold 30 is detachably mounted on a pair of lower lifting plates 52. The mold 30 includes a mounting column 6 extending in the left-right direction. The mounting column 6 passes through the mounting holes 520 of a pair of lower lifting plates 52 at the same time. The mold 30 can move forward relative to the lower end plate 42 to the front side of the gantry 10 through the lower lifting assembly 5 and be removed from the gantry at one time, facilitating the sling to lift out the mold and shortening the replacement time.

[0032] When the mold 30 needs to be replaced, use a crane to lift the mold 30 and move it to the front side of the gantry 10, then fix the lifting hole of the mold 30 with a sling, quickly lift out the mold 30 for replacement, lift out the mold at one time, shorten the mold replacement time, reduce the operation difficulty of the staff, and improve the production efficiency.

[0033] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.

Claims

1. A gantry type mold quick change device, characterized in that: include: The gantry frame comprises a front crossbeam located at the front end of the gantry frame, and the front crossbeam extends in the left-right direction; The hoisting mechanism comprises a pair of hoisting units arranged opposite to each other on the left and right sides, each of the hoisting units comprises an upper hoisting assembly, a mold hanging support and a lower hoisting assembly, the upper hoisting assembly is detachably mounted on the front crossbeam, the mold hanging support is located below the upper hoisting assembly and is detachably connected to the upper hoisting assembly, at least one waist groove extending in the front-to-back direction is provided on the mold hanging support, at least part of the at least one waist groove is located on the front side of the gantry; at least part of the lower hoisting assembly matches the at least one waist groove, and the lower hoisting assembly is configured to be mounted below the mold hanging support so as to be movable back and forth along the at least one waist groove; as well as The mold is detachably mounted on the lower hanging assembly.

2. The mold quick change device according to claim 1, characterized in that: The upper hanging assembly includes an upper mounting plate and a lower mounting plate arranged opposite to each other up and down and a plurality of first screw rod assemblies connected between the upper mounting plate and the lower mounting plate. The upper mounting plate is located above the front crossbeam, and the lower mounting plate is located below the front crossbeam.

3. The mold quick-change device according to claim 2, characterized in that: The mold suspension support includes an upper end plate connected to the lower mounting plate, a lower end plate located below the upper end plate, a support column vertically connected between the upper end plate and the lower end plate, and an oblique rib obliquely connected between the support column and the lower end plate, the oblique rib is inclined forward from top to bottom, and an angle of 30°-70° is formed between the oblique rib and the lower end plate, and at least one waist groove is formed on the lower end plate.

4. The mold quick-change device according to claim 3, characterized in that: In the front-to-back direction, the length of the lower end plate is greater than that of the upper end plate, and the front end portion of the lower end plate is located in front of the front end portion of the upper end plate, the support column is located on the rear side of the oblique rib, and the oblique rib connects the upper end portion of the support column and the front end portion of the lower end plate, and at least part of the lower end plate and at least part of the oblique rib are located on the front side of the gantry.

5. The mold quick-change device according to claim 3, characterized in that: The thickness of the lower end plate is 30-40 mm.

6. The mold quick change device according to claim 3, characterized in that: The lower hanging assembly includes at least one second screw assembly matched with the at least one waist groove and a lower hanging plate connected to the at least one second screw assembly, each of the second screw assemblies includes a second screw inserted in the waist groove and a pair of locking nuts matched with the second screw thread, and the pair of locking nuts are respectively located on the upper and lower sides of the lower end plate; the lower hanging plate is matched with the second screw thread, and the lower hanging plate is provided with a mounting hole for at least part of the mold to pass through.

7. The mold quick-change device according to claim 6, characterized in that: The outer diameter of the second screw rod is 30mm-40mm.

8. The mold quick-change device according to claim 6, characterized in that: The mold comprises a mounting column extending in the left-right direction, and the mounting column is simultaneously penetrated in the mounting holes of a pair of lower hanging plates.

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