Adjustable mold and method for changing side folding thickness

Abstract

The invention discloses an adjustable die and a method for changing lateral folding thickness, the adjustable die comprises an upper die and a lower die which are oppositely arranged, and a female die which is longitudinally and movably arranged on the lower die; the side folding knife is arranged opposite to the female die and is stressed to move towards the female die; a gasket is arranged at the bottom of the side folding knife, and the relative position of the side folding knife and the female die is changed through the gasket. The female die arranged on the lower die is longitudinally moved, the gasket is arranged at the bottom of the side folding knife, the relative position of the side folding knife and the female die is changed, and then the side folding thickness is changed.

Description

Technical Field

[0001] The invention belongs to the technical field of mold processing, and in particular relates to a method for adjusting a mold and changing the thickness of a side fold. Background Art

[0002] With the rapid development of the home appliance industry, refrigerators, as an indispensable household appliance in modern families, are increasingly valued by consumers for their appearance design and manufacturing quality. As an important part of the appearance of refrigerators, refrigerator door shells are not only required to have good structural strength and durability, but also to have a beautiful appearance to attract consumers.

[0003] However, in the production process of refrigerator door shells, refrigerator doors of different sizes have different thicknesses. In the thickness bending of the side-folding refrigerator door, usually one thickness corresponds to one mold. In the production process, different molds usually need to be produced before processing. This method has obvious limitations. On the one hand, in order to produce refrigerator door shells, corresponding molds must be produced first, which not only causes high production costs, but also requires space to place molds of different thicknesses, which takes up a lot of space.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an adjustable mold for changing the side fold thickness.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: An adjustable mold comprises an upper mold and a lower mold which are arranged opposite to each other. A concave die is longitudinally movable on the lower die; The side folding knife is arranged opposite to the die and moves toward the die under force; A gasket is provided at the bottom of the side folding knife, and the relative position of the side folding knife and the concave mold is changed by the gasket.

[0007] Furthermore, a gasket is provided at the upper end or the bottom end of the die, and the relative position of the side folding knife and the die is changed by the gasket.

[0008] Furthermore, the gasket is one or several gaskets with the same thickness.

[0009] Furthermore, an elastic component is provided at the bottom end of the concave mold, one end of the elastic component is connected to the concave mold, and the other end is connected to the base of the lower mold; Preferably, the elastic component is a return spring.

[0010] Furthermore, a gasket is arranged at the upper end of the concave die, and the relative position of the concave die and the side folding knife is changed by arranging the gasket.

[0011] Furthermore, the side of the side folding knife opposite to the die is provided with an inclined surface, and when the side folding knife moves toward the die, the inclined surface causes the die to move downward to compress the elastic component; Preferably, the mapping surfaces of the inclined surfaces on the same vertical plane at least partially overlap.

[0012] Furthermore, during the resetting process of the side folding knife, the elastic component rebounds to drive the die to be reset.

[0013] A method for changing the side fold thickness, applied to the above-mentioned adjustable mold, comprising: S1. Replace or add or remove the gasket at the bottom of the side folding knife; S2, the die moves to the position corresponding to the side folding knife; S3, the upper mold moves downward, or the upper mold and the lower mold move relative to each other, and the lower slide seat of the lower mold starts to move; S4, the upper mold and the lower mold are closed to side-fold the plate.

[0014] Furthermore, when executing S2, it also includes S21, replace or add or reduce the gasket at the bottom of the die so that the die and the side folding knife are set correspondingly.

[0015] Furthermore, when executing S3, it also includes S31, the side folding knife collides with the concave die during the movement toward the concave die, and the concave die is forced to move downward to correspond to the side folding knife; S32, during the resetting process of the side folding knife, the die is forced to re-set.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: 1. The present invention achieves the purpose of changing the side fold thickness by adjusting the position of the concave die by changing the gasket and adjusting the position of the concave die by movably setting the concave die on the lower die and the corresponding side folding knife, and the gasket is set at the bottom of the side folding knife; 2. The present invention achieves the purpose of changing the side fold thickness by adjusting the gasket arranged on the concave die and correspondingly arranging the side folding knife; 3. The present invention changes the relative position of the side folding knife and the die by adding or removing gaskets of the same thickness, thereby achieving the purpose of changing the side folding thickness; 4. The present invention arranges an elastic component at the bottom of the die, and corresponding inclined surfaces are arranged on the side folding knife and the die. The purpose of changing the side fold thickness can be met only by a gasket arranged on the side folding knife, or a gasket is arranged on the upper part of the die so that the inclined surface can be arranged accordingly, and changing the side fold thickness is more convenient and quick.

[0017] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings: Figure 1 This is a schematic diagram of the processing of the adjustable mold of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the processing of the adjustable mold of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the processing of the adjustable mold of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the processing of the adjustable mold of the present invention. Figure 4 .

[0019] In the figure: 1. upper mold; 2. lower mold; 11. upper stripping plate; 12. upper slide seat insert; 13. upper side slide seat insert; 21. lower slide seat; 22. die base; 23. die; 24. nitrogen spring; 25. side folding knife; 26. lower side slide; 27. gasket; 28. side stripping plate; 29. ​​elastic component; 3. reset component; 4. plate.

[0020] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0022] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figures 1 to 4 As shown, an adjustable mold according to the present invention comprises an upper mold 1 and a lower mold 2 which are arranged opposite to each other; The lower mold 2 is used to carry the plate 4; The concave mold 23 is movably arranged on the lower mold 2; The side folding knife 25 is arranged corresponding to the die 23 and moves toward the die 23 under the force; A gasket 27 is provided at the bottom of the side folding knife, and the relative position of the side folding knife 25 and the die 23 is changed by the gasket 27.

[0025] In this embodiment, a gasket 27 is provided at the bottom of the side folding knife 25 to cooperate with the die 23. By changing the thickness or size of the gasket 27 itself, the position of the bending part of the plate 4 is changed, thereby achieving the effect of quickly changing the side fold thickness.

[0026] Specifically, the lower mold 2 includes a movable die base 22, on which a die 23 is longitudinally movable, and a side folding knife 25 is provided on one side of the die 23. The plate 4 is placed on the lower mold 2, and the side folding knife 25 is moved toward the direction of the die 23 by force, and cooperates with the die 23 itself to bend the plate 4. A gasket 27 is provided at the bottom of the side folding knife 25, and the die 23 adjusts its own height to correspond to the side folding knife 25 corresponding to the side folding knife 25, such as an existing lifting motor or other existing other devices that can meet the lifting of the die 23. By changing the thickness of the gasket 27 itself, the bending position of the plate 4 is changed, thereby achieving the effect of quickly changing the side folding thickness.

[0027] In a further embodiment, a gasket 27 is provided on the die 23 , and the relative position of the side folding knife 25 and the die 23 is changed by the gasket 27 .

[0028] Specifically, a gasket 27 is provided at the bottom of the die 23, and the bottom of the die 23 or the gasket 27 abuts against the bottom inner wall of the die base 22. Gaskets 27 of different thicknesses are provided according to the height of the side folding knife 25. When the height of the side folding knife 25 changes, gaskets 27 of different thicknesses are replaced accordingly to achieve the effect of quickly changing the side fold thickness.

[0029] In a further embodiment, a plurality of gaskets 27 are provided on the bottom of the side folding knife 25 or the die 23, and the gaskets 27 have the same thickness. By using gaskets 27 of the same thickness, when changing the side fold thickness, it is only necessary to increase or decrease the number of gaskets 27 to achieve a quick replacement effect. At the same time, multiple identical gaskets 27 are also more convenient in actual production.

[0030] In a further embodiment, the side folding knife 25 is provided with a bevel on the side opposite to the die 23, and an elastic component 29 is provided at the bottom of the die 23. One end of the elastic component 29 is connected to the die 23, and the other end is connected to the lower mold 2. When the side folding knife 25 moves toward the die 23, the die 23 is moved by the bevel.

[0031] Specifically, an elastic component 29 is provided at the bottom of the die 23, one end of the elastic component 29 is connected to the die 23, and the other end is connected to the die base 22, the top wall of the die 23 abuts against the top inner wall of the die base 22, the bottom of the die 23 and the bottom of the die base 22 are spaced apart, and a slope is provided on the side of the side folding knife 25 close to the die 23, and a slope is provided on the side of the die 23 close to the side folding knife 25. During the movement of the side folding knife 25 toward the die 23, the two slopes contact, and the side folding knife 25 continues to move. Under the action of the slope, the die 23 moves downward, the elastic component 29 is compressed, and the side folding knife 25 moves into the concave cavity of the die 23 itself to complete the bending of the plate 4. During the retreat of the side folding knife 25, the elastic component 29 is reset to push the die 23 to move toward the upper end of the die base 22 until the top wall of the die 23 abuts against the top inner wall of the die base 22.

[0032] In one of the implementation schemes, when the gasket 27 at the bottom of the side folding knife 25 is replaced or increased or decreased, the inclined surface of the side folding knife 25 and the inclined surface of the die 23 are always kept relatively arranged, or the inclined surface of the side folding knife 25 and the inclined surface of the die 23 are mapped on the same vertical plane so as to at least partially overlap. In this way, the effect of quickly changing the side fold thickness can be achieved by only replacing or increasing the gasket 27 at the bottom of the side folding knife 25.

[0033] In another embodiment, when the gasket 27 is replaced or increased or decreased at the bottom of the side folding knife 25, the inclined surface of the side folding knife 25 and the inclined surface of the die 23 are misaligned. It is necessary to set a gasket 27 between the top of the die 23 and the top inner wall of the die base 22 so that the inclined surface of the side folding knife 25 and the inclined surface of the die 23 are in a relative position. During the movement of the side folding knife 25 toward the die 23, the inclined surfaces can abut against each other, and the die 23 is moved downward under the action of the inclined surfaces, so that the elastic component 29 is compressed. The side fold thickness can be quickly changed by replacing or increasing or decreasing the gasket 27 on the side folding knife 25, and the relative position of the inclined surface can be adjusted on the die 23 by replacing or increasing or decreasing the gasket 27, and the side fold thickness can be changed in coordination with the die 23 to achieve a quick change effect.

[0034] In a further embodiment, the adjustable mold includes an upper mold 1, a lower mold 2 and a plate 4 to be processed.

[0035] In this embodiment, the upper mold 1 is a movable component, usually made of high-strength material to ensure stability and durability during stamping or pressing; the lower mold 2 is used to place and support the plate 4 to be processed, and as the upper mold 1 descends, the processing of the plate 4 is completed.

[0036] In this embodiment, the lower mold 2 has a lower slide seat 21, and the lower slide seat 21 is movably arranged on the lower mold 2. A die base 22 is arranged on one side of the lower slide seat 21 and drives the die base 22 to move, thereby driving the die 23 to move. The upper mold 1 has an upper slide seat insert 12, and the upper slide seat insert 12 is arranged corresponding to the lower slide seat 21.

[0037] Specifically, the lower slide seat 21 slides along the preset track, and when the upper mold 1 is descending, the upper slide seat insert 12 contacts the inclined surface of the lower slide seat 21 and continues to descend. The inclined surface causes the lower slide seat 21 to slide along the preset track toward the bending point of the plate 4, thereby driving the die base 22 and the die 23 to move toward the bending point of the plate 4. The upper mold 1 continues to descend, and the upper slide seat insert 12 enters the straight surface of the lower slide seat 21. The lower slide seat 21, the die base 22 and the die 23 move to the specified position, ensuring that the plate 4 can be stably inserted into the specified position during the side folding process.

[0038] In a further embodiment, the upper mold 1 has an upper release plate 11 , and the upper release plate 11 is arranged opposite to the plate 4 .

[0039] Specifically, the main function of the upper release plate 11 is that during the processing, the upper mold 1 moves downward, and the upper release plate 11 contacts the plate 4 to prevent damage and displacement of the plate 4 during the processing. After the processing is completed, the upper mold 1 moves upward to smoothly release the plate 4 from the lower mold 2. The design of the upper release plate 11 should ensure good contact with the surface of the plate 4 to avoid damage to the plate 4 during the demolding process.

[0040] In a further implementation scheme, the upper mold 1 has an upper slide seat insert 13, and the lower mold 2 has a lower slide seat 26. The upper slide seat insert 13 and the lower slide seat 26 are arranged correspondingly. When the upper mold 1 moves downward, the upper slide seat insert 13 contacts the lower slide seat 26, pushing the lower slide seat 26 to move.

[0041] Specifically, the upper mold 1 is symmetrically provided with an upper slide seat insert 13, and the upper slide seat insert 13 is provided with an inclined surface. The lower slide seat 26 is correspondingly provided with an inclined surface. When the upper mold 1 moves downward, the inclined surface of the upper slide seat insert 13 contacts the inclined surface of the lower slide seat 26, and the upper mold 1 continues to move downward, pushing the lower slide seat 26 to move toward the direction of the plate 4.

[0042] In the above scheme, the side folding knife 25 is arranged on the lower side slide 26, and the corresponding die 23 is arranged on one side of the plate 4. During the downward movement of the upper mold 1, the plate 4 itself is side-folded in cooperation with the die 23. The relative position of the side folding knife 25 and the die 23 is changed according to the required side folding thickness. The change method is to set a gasket 27 at the bottom of the side folding knife 25, change the gasket 27 of different thicknesses or increase or decrease multiple gaskets 27 of the same thickness to change the position of the side folding knife 25, and adjust the position of the die 23 accordingly according to the position of the side folding knife 25 to realize the rapid change of the side folding thickness.

[0043] In a further implementation scheme, a side release plate 28 is provided on the lower slide 26, and the side release plate 28 is arranged corresponding to the bending portion of the plate 4 itself to ensure the stability of the plate 4 during the processing.

[0044] Specifically, a side release plate 28 is provided on the side of the lower slide 26 close to the plate 4 and is connected to the plate 4 through an elastic member. The side release plate 28 is located on the upper side of the side folding knife 25 and is arranged corresponding to the bending portion of the plate 4 itself. When the lower slide 26 is forced to move toward the plate 4, the side release plate 28 contacts the bending portion of the plate 4.

[0045] In this embodiment, the upper mold 1 moves downward, the upper stripping plate 11 contacts the plate 4, the inclined surface of the upper slide seat inserting knife 12 contacts the inclined surface of the lower slide seat 21, and continues to move downward, and the lower slide seat 21 moves along the predetermined track through the inclined surface, and at the same time drives the die base 22 and the die 23 to move, the upper mold 1 moves downward until the upper slide seat inserting knife 12 enters the straight surface of the lower slide seat 21, the die base 22 and the die 23 move to the specified position, and continue to move downward, the inclined surface of the upper slide seat inserting knife 13 contacts the inclined surface of the lower slide seat 26, and continues to move downward, and under the action of the inclined surface, the lower slide seat 26 is moved downward. The slide 26 moves toward the direction of the plate 4 and continues to descend. The side release plate 28 contacts the bent portion of the plate 4, and the side folding knife 25 cooperates with the die 23 to side-fold the bent portion. After the side folding is completed, the upper mold 1 moves upward, and the lower slide 26 is reset under the action of the nitrogen spring 24 and continues to move upward. The upper slide insert 12 is separated from the straight surface of the lower slide 21, and the die 23, the die base 22 and the lower slide 21 are reset under the action of the reset component 3, and continue to move upward. The upper release plate 11 is separated from the plate 4, and the processed plate 4 is smoothly separated from the lower mold 2.

[0046] The side folding knife 25 and the die 23 achieve the processing of the side folding thickness of the plate 4 through the downward pressure of the upper mold 1. The shape and size of the side folding knife 25 and the die 23 are precisely designed according to the bending requirements of the plate 4 to ensure the accuracy of the bending angle and precision.

[0047] In one implementation scheme, before processing, the gasket 27 of the side folding knife 25 is replaced or increased or decreased according to the thickness of the side folding required. During the processing, when the side folding knife 25 moves toward the direction of the die 23, the inclined surface of the side folding knife 25 contacts the inclined surface of the die 23, and further moves to move the die 23 downward through the inclined surface, and the elastic component 29 is compressed. The side folding knife 25 corresponds to the concave cavity of the die 23 to complete the processing of the side folding thickness of the plate 4. After the processing is completed, the side folding knife 25 retreats and resets under the action of the nitrogen spring 24, and the die 23 is reset under the action of the elastic component 29 rebounding; in the process of changing different side folding thicknesses, there is a situation where the inclined surface of the side folding knife 25 and the inclined surface of the die 23 are misaligned, and it is necessary to replace or increase or decrease the gasket 27 on the die 23 so that the inclined surface of the side folding knife 25 corresponds to the inclined surface of the die 23 to complete the processing.

[0048] In another embodiment, before processing, the gasket 27 of the side folding knife 25 is replaced or increased or decreased according to the thickness of the side fold required, and the gasket 27 on the die 23 is replaced or increased or decreased to correspond to the side folding knife 25 to complete the processing of the side fold thickness.

[0049] In another embodiment, before processing, the gasket 27 of the side folding knife 25 is replaced or increased or decreased according to the thickness of the side fold required, and the cavity 23 is adjusted to correspond to the side folding knife 25 through a lifting motor or other existing lifting devices to complete the processing of the side fold thickness.

[0050] The present invention also provides a method for changing the side fold thickness, which is applied to the above-mentioned mold, comprising: S1, replace or add or remove the gasket 27 at the bottom of the side folding knife 25; S2, the die 23 moves to a position corresponding to the side folding knife; S3, the upper mold 1 moves downward, or the upper mold 1 and the lower mold 2 move relative to each other, and the lower slide seat 21 of the lower mold 2 starts to move; S4, the upper mold 1 and the lower mold 2 are closed to side-fold the plate 4.

[0051] In the above scheme, before the processing starts, the upper mold 1 is in the initial position. In the initial state, the gasket 27 on the side folding knife 25 is replaced or increased or decreased according to the side folding thickness that needs to be processed, and the die 23 is adjusted to correspond to the position of the side folding knife 25. Then the processing starts. As the processing signal is sent, the upper mold 1 starts to descend, and the lower mold 2 moves up at the same time, or only the upper mold 1 starts to descend. After the upper slide seat insert knife 12 contacts the lower slide seat 21, the lower slide seat 21 moves, driving the die base 22 and the die 23 to move to the specified position for positioning. As the upper mold 1 continues to descend, the upper slide seat insert knife 13 contacts the lower slide seat 26, and the lower slide seat 26 moves under force, driving the side folding knife 25 to perform thickness folding processing on the plate 4.

[0052] Furthermore, when executing S2, it also includes: S21, replacing or adding or removing the gasket 27 at the bottom of the die 23, so that the die 23 and the side folding knife 25 are set correspondingly.

[0053] Specifically, before the processing starts, the gasket 27 is replaced or increased or decreased at the bottom of the die 23 corresponding to the position of the side folding knife 25, so that the die 23 corresponds to the side folding knife 25, and the processing can be completed.

[0054] Furthermore, when executing S3, it also includes: S31, when the side folding knife 25 moves toward the concave mold 23, the concave mold 23 is forced to move downward, and the elastic component 29 is compressed; S32, during the resetting process of the side folding knife 25, the elastic component 29 rebounds and drives the die 23 to reset at the same time.

[0055] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. An adjustable mold, comprising an upper mold (1) and a lower mold (2) arranged opposite to each other, characterized in that: A concave mold (23) is disposed on the lower mold (2) so as to be longitudinally movable; The side folding knife (25) is arranged opposite to the concave die (23) and moves toward the concave die (23) under the force; A gasket (27) is provided at the bottom of the side folding knife (25), and the relative position of the side folding knife (25) and the concave mold (23) is changed by the gasket (27).

2. An adjustable mold according to claim 1, characterized in that: A gasket (27) is provided at the upper end or the bottom end of the concave die (23), and the relative position of the side folding knife (25) and the concave die (23) is changed by the gasket (27).

3. An adjustable mold according to claim 1 or 2, characterized in that: The gasket (27) is one or a plurality of gaskets (27) having the same thickness.

4. An adjustable mold according to any one of claims 1 to 3, characterized in that: An elastic component (29) is provided at the bottom end of the concave mold (23), one end of the elastic component (29) is connected to the concave mold (23), and the other end is connected to the base of the lower mold (2); Preferably, the elastic component (29) is a return spring.

5. An adjustable mold according to claim 4, characterized in that: A gasket (27) is provided at the upper end of the concave die (23), and the relative position of the concave die (23) and the side folding knife (25) is changed by providing the gasket (27).

6. An adjustable mold according to claim 4, characterized in that: The side of the side folding knife (25) opposite to the die (23) is provided with an inclined surface, and when the side folding knife (25) moves toward the die (23), the inclined surface causes the die (23) to move downward to compress the elastic component (29); Preferably, the mapping surfaces of the inclined surfaces on the same vertical plane at least partially overlap.

7. An adjustable mold according to claim 5, characterized in that: During the process of resetting the side folding knife (25), the elastic component (29) rebounds to drive the die (23) to reset.

8. A method for changing the thickness of a side fold, characterized in that: The adjustable mold according to any one of claims 1 to 7 comprises: S1, replacing or adding or removing the gasket (27) at the bottom of the side folding knife (25); S2, the die (23) moves to a position corresponding to the side folding knife (25); S3, the upper mold (1) moves downward, or the upper mold (1) and the lower mold (2) move relative to each other, and the lower slide seat (21) of the lower mold (2) starts to move; S4, the upper mold (1) and the lower mold (2) close the side folded plate (4).

9. A method for changing the side fold thickness according to claim 8, characterized in that: When executing S2, it also includes S21, replacing or adding or removing a gasket (27) at the bottom of the concave die (23) so that the concave die (23) and the side folding knife (25) are arranged correspondingly.

10. A method for changing the side fold thickness according to claim 8, characterized in that: When executing S3, it also includes S31, the side folding knife (25) contacts the concave die (23) during the process of moving toward the concave die (23), and the concave die (23) is forced to move downward, corresponding to the side folding knife (25); S32: During the resetting process of the side folding knife (25), the die (23) is forced to re-set.

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