Molding tool for pressing copper woven belt into hard bar

Abstract

The utility model belongs to the technical field of extrusion dies, and particularly relates to a forming tool for pressing a copper woven belt into a hard bar, which comprises a female die frame, a forming cavity is arranged at the top of the female die frame and used for placing a copper block, female die cores and a demoulding bottom plate are arranged on the inner walls of two sides of the forming cavity, and the female die cores are used for clamping the copper block. The demolding bottom plate is arranged at the bottom of the forming cavity, a horizontal table and a boss which are distributed in a halfpace shape are arranged at the top of the demolding bottom plate, the boss is a protrusion in the center of the horizontal table, and the horizontal table is attached to the bottom of the female mold core. When the copper product is pressed, the male die core retreats upwards, and the demolding bottom plate moves upwards along with the male die core due to the release of the elastic force of the demolding spring while the male die core retreats, so that the copper product is loosened in the forming cavity, and the product can be taken out of the forming tool quickly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of extrusion die, specifically relates to a copper braid band press into hard row forming frock. BACKGROUND

[0002] At present, the traditional punch-die two-dimensional extrusion forming mode is adopted for the hard row forming of the braid band, that is, the punch-die forming positioning surface is a two-dimensional straight surface without inclination, thus the die and the drawing die are often stuck during the forming process, which causes problems in the appearance and the size of the copper product, for example, the die is stuck, the operator knocks the copper product forming hard row to make the product loose and then takes it out, which causes the surface to be knocked and scratched, and the efficiency is low during the forming process, and the drawing die causes the frock forming position to be drawn and burr, the size and the appearance of the copper product are drawn and burr during the forming process, which causes the width size to be too large or the surface to be scratched, and the forming position needs to be repeatedly repaired, thus the frock cost is increased. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the utility model provides a copper braid band press into hard row forming frock, which can make the product loose in the forming cavity, so that the product can be quickly taken out from the frock.

[0004] The utility model adopts the technical scheme as follows:

[0005] A copper braid band press into hard row forming frock, including the female die frame, the top of female die frame is opened and has the forming cavity, wherein, the forming cavity is used for placing copper block, the female die core that is used for clamping copper block is equipped on the inner wall of both sides of forming cavity, still include:

[0006] The demolding bottom plate is arranged at the bottom of the forming cavity, the top of the demolding bottom plate is provided with the water platform and the boss which are distributed in the form of a stepped terrace, wherein the boss is protruded from the center part of the water platform, the water platform is attached to the bottom of the female die core, the boss is used for supporting the copper block, and the both sides of the boss are provided with the inclined edge plate which is attached to the side of the female die core away from the inner wall of the forming cavity;

[0007] The demolding spring is arranged at the bottom of the demolding bottom plate, wherein the demolding spring is used for making the demolding bottom plate do the lifting motion at the bottom of the forming cavity.

[0008] As a preferred technical scheme, the utility model further includes a clamping assembly, the clamping assembly includes a clamping groove and a clamping block, wherein the clamping groove is arranged on the inner wall of both sides of the forming cavity, one side of the clamping block is fixed on the female die core, and the other side of the clamping block is movably clamped in the clamping groove.

[0009] Further, the card slot is a dovetail slot, and the clamping block is a trapezoidal block matched with the dovetail slot.

[0010] Further, the punch plate is arranged on the top of the concave die frame, and the bottom of the punch plate is provided with punch cores for extruding the copper block, wherein the punch cores are arranged in the forming cavity.

[0011] Further, the bottom of the punch plate is further provided with guide columns arranged on both sides of the punch cores, and the top of the concave die frame is provided with guide grooves corresponding to the positions of the guide columns, wherein the guide columns are arranged in the guide grooves.

[0012] Further, the inner wall of the guide groove is provided with a guide sleeve, wherein the guide sleeve is used for clamping the guide column arranged in the guide groove.

[0013] Further, the inner wall of the guide sleeve is provided with corrugated lines.

[0014] Further, the opening of the guide groove is provided with a spring between the bottom of the punch plate, wherein the spring is arranged on the outer wall of the guide column.

[0015] As described above, the beneficial effects of the present application are as follows:

[0016] With the setting of the demolding bottom plate and the demolding spring, when the pressing of the copper product is completed, the punch core will be withdrawn upward, and at the same time, the demolding bottom plate will be moved upward together with the punch core due to the elastic force release of the demolding spring, so that the copper product is loosened in the forming cavity, and the product can be quickly taken out from the forming tool. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be described by examples and with reference to the accompanying drawings, wherein:

[0018] Figure 1 is a structural schematic view of a copper braid pressing hard row forming tool provided by the present application;

[0019] Figure 2 is a structural schematic view of a demolding bottom plate provided by the present application;

[0020] Figure 3 is a structural schematic view of a demolding spring provided by the present application; Figure 1 is an enlarged structural schematic view of A in the figure.

[0021] Punch plate-1; concave die frame-2; guide column-3; guide groove-4; guide sleeve-5; punch core-6; concave core-7; clamping assembly-8; demolding bottom plate-9; demolding spring-10; water platform-11; boss-12; inclined edge plate-13. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Embodiment one

[0024] In the prior art, the forming of the hard row of the braided belt is usually two-dimensional extrusion forming by using a punch and a die, wherein the forming positioning surface of the punch and the die is designed as a two-dimensional straight surface without inclination. However, this way often encounters the problems of die jamming and die pulling during the forming process, which directly affects the appearance and size accuracy of the copper product. Specifically, the die jamming phenomenon often forces the operator to loosen and take out the product by knocking the hard row, which can easily cause surface scratches and other defects during this process. On the other hand, the die pulling can cause the phenomenon of pulling and burr at the forming position of the tooling, which further leads to the size deviation and surface scratches of the copper product during the forming process, increasing the production and repair costs.

[0025] Therefore, in order to solve the problem that the existing braided belt forming tooling is prone to die jamming and die pulling when extruding the copper product, and to realize the function of improving the disassembly speed of the formed braided belt, the utility model discloses a copper braided belt pressing hard row forming tooling, which is Figures 1-3 , comprising a die frame 2, a forming cavity is opened at the top of the die frame 2, wherein the forming cavity is used for placing a copper block, the inner wall on both sides of the forming cavity is provided with a die core 7 for clamping the copper block, specifically, further comprising a demolding bottom plate 9, the demolding bottom plate 9 is arranged at the bottom of the forming cavity, the top of the demolding bottom plate 9 is provided with a water platform 11 and a boss 12 distributed in a stepped manner, wherein the boss 12 is protruded at the center of the water platform 11, the water platform 11 is in close contact with the bottom of the die core 7, the boss 12 is used for supporting the copper block, and the two sides of the boss 12 are provided with inclined edge plates 13, the inclined edge plates 13 are in close contact with the side of the die core 7 away from the inner wall of the forming cavity; a demolding spring 10 is arranged at the bottom of the demolding bottom plate 9, wherein the demolding spring 10 is used for making the demolding bottom plate 9 do lifting motion at the bottom of the forming cavity.

[0026] In the embodiment, the worker first places the copper product to be pressed on the boss 12 at the bottom of the forming cavity, then clamps the two sides of the copper product through the concave die core 7, then the copper product is gradually deformed under the downward movement of the convex die core 6, and in the process of deformation, the copper product fills the entire forming cavity, at this time, the gap between the copper product and the boss 12 is formed by the setting of the inclined side plate 13, so that the copper product is not completely filled in the forming cavity, thereby facilitating the demolding of the copper product after the pressing is completed, and at the same time, the demolding spring 10 is forced to drive the demolding bottom plate 9 to sink, until the boss 12 is parallel to the bottom of the concave die core 7, when the pressing of the copper product is completed, the convex die core 6 retreats upward, and the demolding bottom plate 9 moves upward together with the convex die core 6 due to the elastic release of the demolding spring 10, so that the copper product is loosened in the forming cavity, and due to the inclination between the two sides of the boss 12 and the concave die core 7, the product can be quickly taken out of the forming tool.

[0027] It should be noted that the copper product is a copper woven belt, and the copper woven belt is placed on the boss 12, and the copper woven belt can fill the inside of the forming cavity as the convex die core 6 continues to press down, and the size and shape of the forming cavity are formed to obtain the same product after pressing.

[0028] At the same time, since the boss 12 is protruded at the center of the water platform 11, the water platform 11 is attached to the bottom of the concave die core 7, so that when the convex die core 6 is not pressed, the stepped structure between the water platform 11 and the boss 12 can limit the bottom of the concave die core 7, and secondly, it can fill the gap between the inclined side plate 13 on both sides of the boss 12 and the concave die core 7, thereby improving the integrity of the forming cavity.

[0029] Further, when the convex die core 6 is pressed down, the water platform 11 and the boss 12 will sink at the same time, so that the boss 12 will sink to a position parallel to the bottom of the convex die core 6, and through this setting, the forming cavity will not leak due to the sinking of the demolding bottom plate 9.

[0030] Embodiment two

[0031] On the basis of the first embodiment, the concave die core 7 is usually directly welded in the forming cavity, and when the surface of the concave die core 7 is worn, the entire concave die frame 2 can only be replaced, and the maintenance cost is high, therefore, in order to improve the convenience of replacing the concave die core 7 and reduce the maintenance cost, referring to Figures 1-2 The utility model also includes a clamping assembly 8, specifically, the clamping assembly 8 includes a clamping groove and a clamping block, wherein the clamping groove is opened on the inner wall on both sides of the forming cavity, one side of the clamping block is fixed on the concave die core 7, and the other side of the clamping block is movably clamped in the clamping groove.

[0032] It should be noted that the card slot extends along the cross direction of the inner wall of the forming cavity, and one end of the card slot is provided with an opening, and the shape and length of the clamping block correspond to the card slot, so that when the clamping assembly 8 is used, one end of the clamping block can be inserted from the opening of the card slot, and then the user pushes the concave mold core 7 towards the other end of the card slot, so that the clamping block can slide into the card slot and completely fill the card slot, so as to install the concave mold core 7 into the forming cavity, and when the concave mold core 7 needs to be disassembled, the user only needs to push the concave mold core 7 towards the opening of the card slot to remove the concave mold core 7, so that the replacement time of the concave mold core 7 is shortened, the replacement convenience is improved, and the concave mold core 7 can be replaced separately, thereby reducing the maintenance cost.

[0033] For example, the card slot is a dovetail slot, and the clamping block is a trapezoidal block matched with the dovetail slot. Through this arrangement, the cooperation of the dovetail slot and the trapezoidal block not only increases the stability of the clamping, but also ensures the smoothness of the clamping block when sliding in the card slot. Specifically, when the clamping block is fully inserted into the dovetail slot, the trapezoidal structure limits the movement of the clamping block in the horizontal direction, thereby effectively preventing the concave mold core 7 from loosening or falling off during use. In addition, the inclined surface design of the trapezoidal block makes it difficult for the clamping block to jam in the dovetail slot during disassembly, facilitating the movement of the clamping block in the dovetail slot, and further improving the replacement efficiency of the concave mold core 7.

[0034] In addition, since the other end of the card slot is a closed structure without an opening, the concave mold core 7 can be stably positioned in the forming cavity after being fully pushed into the card slot, and is not easy to come out by itself.

[0035] In example three, based on example one, the utility model further includes a convex mold for pressing copper products, specifically, referring to Figure 1 Further comprising a convex mold plate 1, the convex mold plate 1 is arranged in parallel on the top of the concave mold frame 2, and the bottom of the convex mold plate 1 is provided with a convex mold core 6 for extruding copper blocks, wherein the convex mold core 6 is arranged inside the forming cavity.

[0036] In this embodiment, in order to make the convex mold plate 1 smoothly drive the convex mold core 6 to sink, the top of the convex mold plate 1 is connected with the external telescopic part, for example, through a cylinder or a hydraulic cylinder and the like driving device. These driving devices are installed above the convex mold plate 1, and the convex mold plate 1 is pushed up and down by the extension and retraction of the piston rod, thereby driving the convex mold core 6 to perform pressing operation in the forming cavity.

[0037] Further, in order to reduce the occurrence of the die, the bottom of the male die plate 1 is also provided with guide posts 3, which are distributed in parallel on both sides of the male die core 6. The top of the female die frame 2 is provided with guide grooves 4 corresponding to the positions of the guide posts 3. The guide posts 3 are arranged in the guide grooves 4. When the male die core 6 descends, the positioning effect is achieved through the arrangement of the guide posts 3 and the guide grooves 4, so that the reserved gap on both sides of the male die core 6 and the female die core 7 is uniform, which helps to avoid the subsequent occurrence of the die. Specifically, when the male die plate 1 sinks, the guide posts 3 are arranged in the guide grooves 4, so that the male die plate 1 will not deviate in the left and right directions during the sinking process, so that the reserved gap on both sides of the male die core 6 and the female die core 7 sinking into the forming cavity is uniform.

[0038] In addition, in order to reduce the wear between the guide posts 3 and the guide grooves 4, the inner wall of the guide groove 4 is provided with a guide sleeve 5. The guide sleeve 5 is used to clamp the guide post 3 inserted into the guide groove 4. The guide sleeve 5 can be made of wear-resistant materials such as rubber. The arrangement of the guide sleeve 5 not only reduces the direct contact between the guide post 3 and the guide groove 4, but also reduces the wear. At the same time, the guide sleeve 5 also has a certain elasticity, which can better wrap the guide post 3 and improve the protection effect of the guide post 3.

[0039] In one embodiment, the inner wall of the guide sleeve 5 is provided with corrugated patterns. The corrugated patterns are used to make the guide sleeve 5 closely fit the surface of the guide post 3, which helps to avoid the shaking of the guide post 3 during the lifting process, and further improves the lifting stability of the male die plate 1.

[0040] Further, a spring is arranged between the opening outside of the guide groove 4 and the bottom of the male die plate 1. The spring is arranged on the outer wall of the guide post 3. Through this arrangement, when the male die plate 1 sinks, the spring can play its elastic role to provide certain buffer and support for the male die plate 1, so as to prevent the male die plate 1 from directly impacting on the top of the female die frame 2, thereby prolonging the service life of the tool.

[0041] In summary, in combination with examples one to three, the working principle of the copper braid pressing and hard row forming tool is as follows:

[0042] Firstly, the copper braid is placed in the forming cavity of the female die frame 2 to ensure that the copper braid is located on the boss 12. Then, the external driving device is started to make the male die plate 1 start to move downward. In this process, the guide post 3 will slide along the guide groove 4, and the guide sleeve 5 will closely fit the surface of the guide post 3 to provide stable guidance and wear reduction effect. As the male die plate 1 continues to sink, the spring is gradually compressed to provide necessary buffer and support for the male die plate 1, ensuring that the male die core 6 can stably contact and press the copper braid.

[0043] Secondly, when the punch core 6 is completely pressed on the copper braid, the driving device stops working, at this time, the copper braid is pressed into a hard row shape under the joint action of the punch core 6 and the concave die core 7, then the punch plate 1 will be withdrawn upward under the action of the driving device, at the same time, the demolding spring 10 will be released and push the demolding bottom plate 9 to reset, so that the hard row shaped product can be lifted by the demolding bottom plate 9, so that the product in the forming cavity is loose, which is convenient for the user to take out.

[0044] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0045] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A copper braid press-to-hard-braided forming tool, comprising a concave die frame (2), a forming cavity is opened in the top of the concave die frame (2), wherein, The forming cavity is used for placing copper blocks, and recessed mold cores (7) for clamping the copper blocks are arranged on the inner walls on both sides of the forming cavity, characterized in that the mold further comprises: a demolding bottom plate (9) arranged at the bottom of the forming cavity, wherein the top of the demolding bottom plate (9) is provided with water platforms (11) and bosses (12) distributed in a stepped manner, the boss (12) is protruded at the center of the water platform (11), the water platform (11) is in close contact with the bottom of the recessed mold core (7), the boss (12) is used for supporting the copper blocks, and the two sides of the boss (12) are provided with inclined side plates (13) in close contact with the side of the recessed mold core (7) away from the inner wall of the forming cavity; a demolding spring (10) arranged at the bottom of the demolding bottom plate (9), wherein the demolding spring (10) is used for making the demolding bottom plate (9) move up and down at the bottom of the forming cavity.

2. The copper braid press-to-hard pack forming tooling of claim 1, wherein, The mold further comprises a clamping assembly (8) comprising a clamping groove and a clamping block, wherein the clamping groove is opened on the inner walls on both sides of the forming cavity, and one side of the clamping block is fixed on the recessed mold core (7), and the other side of the clamping block is movably clamped in the clamping groove.

3. The copper braid press-to-hard pack forming tooling of claim 2, wherein, The clamping groove is a dovetail groove, and the clamping block is a trapezoidal block matched with the dovetail groove.

4. The copper braid press-to-hard pack forming tooling of claim 1, wherein, The mold further comprises a convex mold plate (1) arranged in parallel at the top of the recessed mold frame (2), wherein the bottom of the convex mold plate (1) is provided with convex mold cores (6) used for extruding the copper blocks, and the convex mold cores (6) are arranged inside the forming cavity.

5. The copper braid press-to-hard pack forming tooling of claim 4, wherein, The bottom of the convex mold plate (1) is further provided with guide columns (3) arranged in parallel on both sides of the convex mold cores (6), the top of the recessed mold frame (2) is provided with guide grooves (4) corresponding to the positions of the guide columns (3), and the guide columns (3) are arranged in the guide grooves (4).

6. The copper braid press-to-hard pack forming tooling of claim 5, wherein, The inner wall of the guide groove (4) is provided with a guide sleeve (5), wherein the guide sleeve (5) is used for clamping the guide column (3) penetrating into the guide groove (4).

7. The copper braid press-to-hard pack forming tooling of claim 6, wherein, The inner wall of the guide sleeve (5) is provided with corrugated lines.

8. The copper braid press-to-hard pack forming tooling of claim 5, wherein, The opening outer side of the guide groove (4) and the bottom of the convex mold plate (1) are provided with a spring, wherein the spring is arranged on the outer wall of the guide column (3).

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