Forming die for inner cover of refrigerator door

Abstract

The utility model is suitable for the technical field of dies, and provides a forming die for an inner cover of a refrigerator door, which comprises a lower die holder and an upper die holder, the die cavity is formed in the lower die base, the die head is arranged on the bottom side of the upper die base, and the die cavity and the die head are pressed together to form a die cavity; the jacking mechanism is arranged below the mold cavity; the feeding mechanism is arranged on the outer side of the die cavity; the jacking mechanism comprises a set of guide sliding grooves formed in an inner cavity of the lower die base. The same sliding plate slides between the two guide sliding grooves; the springs and the ejector pins are arranged above the sliding plate, and a material ejecting through hole is formed in the bottom side of the die groove; through the feeding and discharging mode that the jacking mechanism and the feeding mechanism are matched with the telescopic push plate, formed products can be rapidly and accurately ejected out, manual operation is reduced, the product quality and consistency are guaranteed, production efficiency is improved, the labor intensity of workers is reduced through the automatic process, and the production cost is reduced. And the production continuity and adaptability are enhanced, and the service life of the mold is remarkably prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a molding mold for an inner cover of a refrigerator door. Background Art

[0002] In the production process of refrigerator door inner covers, mold pressing is a key step. However, due to the strong pressure applied during the pressing process, the molded material fits tightly on the mold, so it needs to be removed manually. This process has many problems and challenges:

[0003] The traditional manual removal method requires workers to take out the formed materials from the mold one by one. This method is not only time-consuming, but also limited by the workers' operating speed and proficiency, resulting in low overall production efficiency. At the same time, due to factors such as differences in workers' operations and fatigue, the size and shape of the removed materials may be inconsistent, affecting the quality and consistency of the final product. In addition, since the material of the refrigerator door inner cover is usually heavy, manual handling of materials requires a lot of physical strength and energy. Utility Model Content

[0004] The utility model provides a molding die for a refrigerator door inner cover, aiming to solve the problem that after the existing mold door cover is formed, the molding material needs to be manually removed from the mold, and the manual operation is prone to cause inconsistencies in material size and shape due to fatigue or skill differences, thereby affecting the quality and consistency of the final product. In addition, since the refrigerator door inner cover material is usually heavy, manual handling is not only laborious, but may also increase the risk of work-related injuries.

[0005] The utility model is implemented as follows: a forming mold for a refrigerator door inner cover comprises a lower mold base; an upper mold base arranged above the lower mold base; a mold groove arranged in the lower mold base, a mold head is arranged on the side of the upper mold base opposite to the lower mold base, and the mold groove and the mold head are pressed together to form a mold cavity; a lifting mechanism arranged below the mold cavity; and a feeding mechanism arranged outside the mold cavity; wherein the lifting mechanism comprises: a group of guide slide grooves symmetrically arranged in the inner cavity of the lower mold base; a same slide plate sliding between two of the guide slide grooves; a ejection cylinder arranged below the slide plate, the output end of the ejection cylinder being connected to the middle position of the bottom side of the slide plate; a group of springs symmetrically arranged above the slide plate, dampers are arranged in both of the springs; ejector pins are arranged on the side of the two springs away from the slide plate, and an ejection through hole for the ejector pins to penetrate is opened on the bottom side of the mold groove.

[0006] Preferably, the feeding mechanism comprises: an assembly frame arranged outside the lower die base; and a plurality of transmission rollers rotatably arranged in the assembly frame, wherein the plurality of transmission rollers and the assembly frame are rotationally matched.

[0007] Preferably, a receiving plate is provided on a side of the lower die base away from the assembly frame, an electric push rod is provided on the inner side of the receiving plate, and a push plate is provided at the output end of the electric push rod.

[0008] Preferably, guide columns are provided at the four corner positions of the upper surface of the lower die base, the same machine head is provided on the side of the four guide columns away from the lower die base, the upper die base is provided at the lower position of the machine head and slidingly cooperates with the four guide columns, and a group of hydraulic cylinders are provided on the side of the machine head opposite to the upper die base, and the output ends of the two hydraulic cylinders are connected to the top position of the upper die base.

[0009] Preferably, the inner diameter of the ejector through hole matches the outer diameter of the ejector pin.

[0010] Preferably, the driving roller and the lower die base are at the same horizontal height.

[0011] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0012] First, by setting up a lifting mechanism, the molded product can be ejected from the mold cavity quickly and accurately, reducing the time and error of manual operation, ensuring that the product will not be damaged or deformed during the ejection process, ensuring the quality and consistency of the product, thereby improving the overall production efficiency. At the same time, due to the precise and smooth operation of the lifting mechanism, the impact and wear of the mold during the ejection process are greatly reduced, which not only helps to maintain the long-term stability of the mold, but also extends the service life of the mold and reduces maintenance costs.

[0013] Second: The loading and unloading method through the cooperation of the feeding mechanism and the retractable push plate not only improves the production efficiency and product quality, but also reduces the labor intensity of workers, enhances the continuity and adaptability of production, and is of great significance for achieving efficient and high-quality continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 3 It is a front view of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the jacking mechanism of the utility model;

[0018] In the figure: 1. lower die base; 2. upper die base; 3. die groove; 4. die head; 5. guide slide; 6. slide plate; 7. ejector cylinder; 8. spring; 9. ejector pin; 10. ejector through hole; 11. receiving plate; 12. electric push rod; 13. push plate; 14. guide column; 15. machine head; 16. hydraulic cylinder; 17. assembly frame; 18. transmission roller. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The utility model provides a forming mold for a refrigerator door inner cover, such as Figure 1-4 As shown, it includes a lower die base 1; an upper die base 2 arranged above the lower die base 1; a die groove 3 arranged in the lower die base 1, a die head 4 is arranged on the side of the upper die base 2 opposite to the lower die base 1, and the die groove 3 and the die head 4 are pressed together to form a die cavity; a lifting mechanism arranged below the die cavity; and a feeding mechanism arranged outside the die cavity; wherein the lifting mechanism includes: a group of guide slide grooves 5 symmetrically arranged in the inner cavity of the lower die base 1; the same slide plate 6 sliding between the two guide slide grooves 5; a ejection cylinder 7 arranged below the slide plate 6, the output end of the ejection cylinder 7 is connected to the middle position of the bottom side of the slide plate 6; a group of springs 8 symmetrically arranged above the slide plate 6, and dampers are arranged in the two springs 8; ejector pins 9 are arranged on the side of the two springs 8 away from the slide plate 6, and an ejection through hole 10 for the ejector pins 9 to pass through is opened on the bottom side of the die groove 3.

[0022] It should be noted that, since the existing mold door cover needs to be manually removed from the mold after molding, manual operation is prone to cause inconsistencies in material size and shape due to fatigue or skill differences, thus affecting the quality and consistency of the final product. In addition, since the inner cover material of the refrigerator door is usually heavy, manual handling is not only laborious, but may also increase the risk of work-related injuries. The present solution, by setting a lifting mechanism and a feeding mechanism in conjunction with a retractable push plate 13 for loading and unloading, not only achieves rapid and accurate ejection of molded products, reduces manual operation, ensures product quality and consistency, but also improves production efficiency. At the same time, this automated process reduces the labor intensity of workers, enhances production continuity and adaptability, and significantly extends the service life of the mold, thereby achieving efficient, high-quality, and low-cost continuous production.

[0023] Specifically, in this embodiment, the scheme mainly includes a lower die base 1; an upper die base 2 arranged above the lower die base 1; a die groove 3 arranged in the lower die base 1, and a die head 4 is arranged on the side of the upper die base 2 opposite to the lower die base 1, and the die groove 3 and the die head 4 are pressed together to form a mold cavity; first, the material to be formed is transmitted to the mold cavity through the feeding mechanism. At this stage, the mold groove 3 and the die head 4 have not been pressed together, and the mold cavity is in an open state so that the material can enter smoothly; then, the upper die base 2 drives the die head 4 to move downward, so that the die head 4 and the die groove 3 begin to be pressed together to form a closed mold cavity. Under the joint action of the mold groove 3 and the die head 4, the material begins to be subjected to pressure in the mold cavity and gradually Gradually formed into the shape of the refrigerator door inner cover; when the material is completely formed in the mold cavity, the lifting mechanism starts to work, and the output end of the ejection cylinder 7 pushes the slide plate 6 to move upward along the guide slide groove 5. Due to the guiding effect of the guide slide groove 5, the slide plate 6 can maintain a stable and smooth rise. During the rising process of the slide plate 6, the spring 8 and the damper play a buffering and stabilizing role to ensure the smoothness and accuracy of the ejection process; as the slide plate 6 rises, the spring 8 is compressed and accumulates energy, and then drives the ejector pin 9 to move upward. The ejector pin 9 passes through the ejection through hole 10 opened on the bottom side of the mold groove 3, and ejects the formed refrigerator door inner cover from the mold cavity. At this time, the refrigerator door inner cover is separated from the mold, completing the entire molding process.

[0024] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the feeding mechanism includes: an assembly frame 17 arranged outside the lower die base 1; and a plurality of transmission rollers 18 rotatably arranged in the assembly frame 17, wherein the plurality of transmission rollers 18 and the assembly frame 17 are rotationally matched.

[0025] In this embodiment, the material to be formed is placed on the transmission roller 18, and the material is pushed on the transmission roller 18 for loading. The rotatable transmission roller 18 makes the material smoother during the material pushing process, which is beneficial to saving manpower and improving the loading efficiency.

[0026] In a further preferred embodiment of the present invention, Figure 4 As shown, a receiving plate 11 is provided on a side of the lower die base 1 away from the assembly frame 17 , an electric push rod 12 is provided on the inner side of the receiving plate 11 , and a push plate 13 is provided on the output end of the electric push rod 12 .

[0027] In this embodiment, after the material is formed and ejected from the die cavity 3, the electric push rod 12 drives the push plate 13 to fit the outer wall of the material. Then, the electric push rod 12 applies force to cause the push plate 13 to push the material onto the drive roller 18 for unloading.

[0028] In a further preferred embodiment of the present invention, Figure 1-3 As shown, guide columns 14 are provided at the four corner positions of the upper surface of the lower die base 1, and the same machine head 15 is provided on the side of the four guide columns 14 away from the lower die base 1. The upper die base 2 is arranged at the lower position of the machine head 15 and slidingly cooperates with the four guide columns 14. A group of hydraulic cylinders 16 are provided on the side of the machine head 15 opposite to the upper die base 2, and the output ends of the two hydraulic cylinders 16 are connected to the top position of the upper die base 2.

[0029] In this embodiment, at the beginning of stamping, the hydraulic cylinder 16 is started to push the upper die base 2 to move downward along the guide column 14 until it is closed with the lower die base 1. The upper die base 2 can move vertically up and down under the guidance of the guide column 14 without deviating from the predetermined path. At this time, the material is subjected to pressure in the mold cavity of the mold and is formed according to the shape of the mold. After the stamping is completed, the hydraulic cylinder 16 operates in the reverse direction to make the upper die base 2 rise and break away from the contact with the lower die base 1.

[0030] In a further preferred embodiment of the present invention, Figure 4 As shown, the inner diameter of the ejection hole 10 is matched with the outer diameter of the ejector pin 9 .

[0031] In this embodiment, the ejector pin 9 is adapted to the ejection hole 10 to ensure that the ejector pin 9 can pass through the hole smoothly and remain stable during operation. This adaptability not only affects the smoothness of the movement of the ejector pin 9 in the hole, but also improves the use effect of the ejector pin 9 and the efficiency of the ejection process.

[0032] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the driving roller 18 and the lower die base 1 are at the same level.

[0033] In the present embodiment, this means that after the material is ejected from the die cavity 3, it can slide smoothly onto the driving roller 18 without the need for additional vertical or tilting movement.

[0034] Working principle: First, place the material to be formed on the transmission roller 18, and manually push the material for transmission. Through the rotation of the transmission roller 18, the material can be smoothly transferred to the mold cavity. At this time, the mold groove 3 and the die head 4 have not yet contacted, and the mold cavity remains open to ensure that the material can enter smoothly; then, the hydraulic cylinder 16 is started to push the upper mold base 2 to move vertically downward along the guide column 14 until it is tightly molded with the lower mold base 1; under the precise guidance of the guide column 14, the upper mold base 2 moves vertically without deviating from the predetermined path; after the mold is closed, the material is subjected to uniform pressure in the mold cavity and gradually formed according to the shape of the mold;

[0035] After the stamping is completed, the hydraulic cylinder 16 operates in the reverse direction to make the upper die base 2 rise and separate from the lower die base 1; at the same time, the die groove 3 and the die head 4 work together to complete the molding of the material in the mold cavity to form the shape of the refrigerator door inner cover; after the molding process is completed, the lifting mechanism starts to operate; the ejection cylinder 7 pushes the slide plate 6 to rise steadily along the guide slide groove 5. During this process, the spring 8 and the damper play a buffering and stabilizing role to ensure the accuracy and stability of the ejection process; as the slide plate 6 rises, the spring 8 is compressed and accumulates energy, and then releases energy to push the ejector pin 9 to rise. The ejector pin 9 passes through the ejection through hole 10 at the bottom of the die groove 3, and ejects the formed refrigerator door inner cover from the mold cavity, realizing the separation of the material and the mold, and completing the entire molding process;

[0036] Subsequently, the electric push rod 12 drives the push plate 13 to fit tightly to the outer wall of the material, and applies force to push the material onto the transmission roller 18 for unloading operation; this process ensures that the formed refrigerator door inner cover can be smoothly removed from the mold groove 3 and realizes efficient continuous production.

[0037] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0038] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0039] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0040] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A forming mold for a refrigerator door inner cover, characterized in that: include: Lower die seat; An upper die base disposed above the lower die base; A die groove is provided in the lower die base, a die head is provided on the side of the upper die base opposite to the lower die base, and the die groove and the die head are pressed together to form a die cavity; A lifting mechanism disposed below the mold cavity; and A feeding mechanism disposed outside the mold cavity; Wherein, the lifting mechanism comprises: A group of guide grooves symmetrically arranged in the inner cavity of the lower die base; The same slide plate slides between the two guide slide grooves; A material pushing cylinder is arranged below the slide plate, and the output end of the material pushing cylinder is connected to the middle position of the bottom side of the slide plate; A group of springs symmetrically arranged above the slide plate, wherein dampers are arranged in two of the springs; The two springs are both provided with ejector pins on one side away from the slide plate, and the bottom side of the mold groove is provided with an ejector through hole for the ejector pins to penetrate.

2. A forming mold for a refrigerator door inner cover as claimed in claim 1, characterized in that: The feeding mechanism comprises: An assembly frame arranged on the outer side of the lower die base; A plurality of transmission rollers arranged in the assembly frame are rotatably matched with the assembly frame.

3. A forming mold for a refrigerator door inner cover as claimed in claim 2, characterized in that: A receiving plate is arranged on a side of the lower die base away from the assembly frame, an electric push rod is arranged on the inner side of the receiving plate, and a push plate is arranged on the output end of the electric push rod.

4. A forming mold for a refrigerator door inner cover as claimed in claim 3, characterized in that: Guide columns are provided at the four corner positions of the upper surface of the lower die base, and the same machine head is provided on the side of the four guide columns away from the lower die base. The upper die base is provided at the lower position of the machine head and slidingly cooperates with the four guide columns. A group of hydraulic cylinders is provided on the side of the machine head opposite to the upper die base, and the output ends of the two hydraulic cylinders are connected to the top position of the upper die base.

5. The forming mold for the refrigerator door inner cover according to claim 1, characterized in that: The inner diameter of the ejector through hole is matched with the outer diameter of the ejector pin.

6. A forming mold for a refrigerator door inner cover as claimed in claim 4, characterized in that: The driving roller and the lower die base are at the same level.

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