Refrigerator freezing air duct cover plate mold

Abstract

The utility model discloses a refrigerator freezing air duct cover plate mould, which relates to the mould field, and comprises a bottom plate, the front part and the rear part of the upper end of the bottom plate are respectively provided with a support plate, the upper ends of the two support plates are jointly provided with a support mould, and the middle part of the upper end of the support mould is fixedly sleeved with a lower mould; first side molds are installed on the front portion, the rear portion and the right portion of the upper end of the supporting mold correspondingly, a side mold component is installed at the left end of the supporting mold, an upper mold is arranged at the upper end of the lower mold, a transverse plate is installed in the middle of the upper end of the bottom plate, and an ejection component is installed at the upper end of the transverse plate. And the ejection part extends into the lower mold. By arranging the side mold part, the injection-molded workpiece can be conveniently taken out, so that the workpiece is prevented from being damaged or deformed due to being clamped in the mold, the quality stability of the workpiece is improved, the dead time of a production line is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a refrigerator freezing air duct cover plate mold. Background Art

[0002] In current air-cooled refrigerators, cold air is distributed to different refrigerator compartments through cold air ducts to cool the refrigerator compartments, and the cold air circulates between the refrigerator compartments and the duct components. The cold air duct is a space defined by the duct front cover, the duct rear cover, and the duct insulation material. A fan motor is installed between the duct front cover and the duct rear cover for exhaust treatment of the duct. The duct front cover and the duct rear cover need to be spliced ​​and formed when they are assembled. When manufacturing the refrigerator freezer duct cover, a mold needs to be used for injection molding.

[0003] The prior art (announcement number: CN213704345U) discloses an injection mold for producing refrigerator air ducts, including a mold frame, support frames are vertically fixed on both sides of the bottom surface of the mold frame, a lifting plate is provided in the middle of the surface of the mold frame, the support frames are arranged on both sides of the lifting plate, the upper surface of the lifting plate is connected to an air supply pipe, an air supply port is opened at the right end of the air supply pipe, an air outlet is arranged at the left end of the air supply pipe, a fan is arranged in the air supply pipe, the upper part of the fan is connected to a movable rod, the movable rod is arranged in a push rod, and a fixed mold is arranged at the upper end of the support frame.

[0004] Although the above patent can connect the fan through the push rod, provide power to the fan, control the opening and closing of the fan, and the fan is installed in the air supply duct, which can increase the wind speed, reduce the contact time, and avoid increasing the risk of icing, it has the following disadvantages: when taking out the workpiece, the side of the fixed mold cannot be separated, and the workpiece may be stuck in the mold when ejecting the workpiece, causing deformation or damage to the workpiece. Further improvement is needed. For this reason, we propose a refrigerator freezer air duct cover mold. Utility Model Content

[0005] The main purpose of the utility model is to provide a refrigerator freezing air duct cover plate mold, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A refrigerator freezer air duct cover plate mold comprises a base plate, support plates are installed at the upper front and upper rear of the base plate, a support mold is installed together at the upper ends of the two support plates, a lower mold is fixedly sleeved at the upper middle part of the support mold, a first side mold is installed at the upper front, upper rear and upper right of the support mold, a side mold component is installed at the left end of the support mold, an upper mold is arranged at the upper end of the lower mold, a cross plate is installed at the upper middle part of the base plate, an ejection component is installed at the upper end of the cross plate, and the ejection component extends into the lower mold.

[0008] Preferably, the side mold component includes an electric cylinder, two of which are provided and symmetrically distributed front to back, the two electric cylinders are installed at the left end of the supporting mold, and the output ends of the two electric cylinders are jointly installed with the second side mold, and the upper left part of the second side mold is provided with two guide grooves, and the lower end of the second side mold is slidably connected to the upper left part of the supporting mold.

[0009] Preferably, the ejection component includes a movable plate, which is arranged at the upper end of the horizontal plate, and a plurality of ejector pins are fixedly sleeved inside the movable plate, and concave blocks are fixedly sleeved at the middle front part and the middle rear part of the upper end of the movable plate, a vertical rod is installed at the middle right part of the upper end of the movable plate, and an ejection block is commonly installed at the upper ends of the four ejector pins, and the interiors of the two concave blocks are rotatably connected with inclined ejector rods through rotating shafts.

[0010] Preferably, the upper ends of the ejector pins, the upper ends of the inclined ejector rods, the upper ends of the ejector blocks and the upper ends of the vertical rods are all movably inserted into the lower wall of the lower mold.

[0011] Preferably, springs are installed at the four corners of the upper end of the movable plate, the upper ends of the four springs are fixedly connected to the lower end of the supporting mold, and a number of support rods are installed at the lower end of the supporting mold, and the lower ends of the support rods movably pass through the lower end of the movable plate and are fixedly connected to the lower end of the horizontal plate.

[0012] Preferably, guide rods are installed at the four corners of the upper end of the supporting mold.

[0013] Preferably, the three first side molds and the two guide grooves are movably interspersed with inclined guide pillars.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] By setting the side mold parts, the workpiece after injection molding can be easily taken out. After injection molding is completed, the output end of the electric cylinder is controlled to drive the second side mold to move to the left, so that the second side mold is separated from the lower mold. Through the separation design, the damage or deformation of the workpiece caused by being stuck in the mold can be avoided, the quality stability of the workpiece is improved, the stagnation time of the production line is reduced, and the production efficiency is improved;

[0016] By setting up the ejection component, the workpiece can be ejected conveniently. During ejection, the inclined ejector rod moves obliquely to the upper left in the supporting mold, thereby pushing the workpiece toward the second side mold, avoiding the problems of undercut and jamming of the workpiece during demolding, thereby improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the entire structure proposed in this embodiment;

[0018] Figure 2 It is a schematic diagram of a local explosion structure in this embodiment;

[0019] Figure 3 Schematic diagram of the structure of the horizontal plate in this embodiment;

[0020] Figure 4 Schematic diagram of the structure of the side mold component in this embodiment;

[0021] Figure 5 Schematic diagram of the structure of the ejection component in this embodiment.

[0022] In the figure: 1, bottom plate; 2, support plate; 3, support mold; 4, side mold component; 5, guide rod; 6, upper mold; 7, first side mold; 8, inclined guide column; 9, workpiece; 10, lower mold; 11, cross plate; 12, ejector component; 13, support rod; 14, spring; 41, electric cylinder; 42, second side mold; 43, guide groove; 121, moving plate; 122, ejector pin; 123, concave block; 124, inclined ejector rod; 125, vertical rod; 126, ejector block. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figure 1-Figure 5As shown, a refrigerator freezer air duct cover plate mold includes a base plate 1, support plates 2 are installed at the upper front and upper rear of the base plate 1, a support mold 3 is installed together at the upper ends of the two support plates 2, a lower mold 10 is fixedly sleeved at the upper middle part of the support mold 3, a first side mold 7 is installed at the upper front, upper rear and upper right of the support mold 3, a side mold component 4 is installed at the left end of the support mold 3, an upper mold 6 is arranged at the upper end of the lower mold 10, a cross plate 11 is installed at the upper middle part of the base plate 1, an ejection component 12 is installed at the upper end of the cross plate 11, and the ejection component 12 extends into the lower mold 10.

[0027] In order to avoid damage or deformation of the workpiece due to being stuck in the mold and to improve the quality stability of the workpiece, the side mold component 4 can be used to conveniently remove the injection-molded workpiece. The specific structure is as follows: the side mold component 4 includes an electric cylinder 41. Two electric cylinders 41 are provided and are symmetrically distributed front to back. The two electric cylinders 41 are both installed at the left end of the supporting mold 3. The output ends of the two electric cylinders 41 are jointly installed with a second side mold 42. Two guide grooves 43 are provided on the upper left portion of the second side mold 42. The lower end of the second side mold 42 is slidably connected to the upper left portion of the supporting mold 3. The second side mold 42 is slidably connected to the supporting mold 3 through a slider.

[0028] The ejection component 12 is used to facilitate the ejection of the workpiece. The specific structure is as follows: the ejection component 12 includes a movable plate 121, which is arranged at the upper end of the horizontal plate 11, and a plurality of ejector pins 122 are fixedly sleeved inside the movable plate 121. A concave block 123 is fixedly sleeved at the middle front part and the middle rear part of the upper end of the movable plate 121. A vertical rod 125 is installed at the middle right part of the upper end of the movable plate 121. An ejector block 126 is commonly installed at the upper ends of the four ejector pins 122. The interiors of the two concave blocks 123 are rotatably connected with an inclined ejector rod 124 through a rotating shaft. The upper ends of the ejector pins 122, the upper ends of the inclined ejector rod 124, the upper ends of the ejector block 126 and the upper ends of the vertical rod 125 are all movably inserted into the lower wall of the lower mold 10. The inclined ejector rod 124 moves obliquely to the upper left in the supporting mold 3, thereby pushing the workpiece to move toward the second side mold 42, avoiding the problems of undercut and jamming of the workpiece during demoulding, thereby improving production efficiency and product quality.

[0029] Springs 14 are installed at the four corners of the upper end of the movable plate 121, and the upper ends of the four springs 14 are fixedly connected to the lower end of the supporting mold 3. A number of support rods 13 are installed at the lower end of the supporting mold 3. The lower end of the support rod 13 movably passes through the lower end of the movable plate 121 and is fixedly connected to the lower end of the cross plate 11. The spring 14 is used to drive the movable plate 121 to reset.

[0030] Guide rods 5 are installed at the four corners of the upper end of the supporting mold 3, and the guide rods 5 are used to play a guiding role.

[0031] The three first side molds 7 and the two guide grooves 43 are all movably connected with inclined guide pillars 8, and the inclined guide pillars 8 are used to improve the positions of the first side molds 7 and the second side molds 42 and play a guiding role.

[0032] The utility model proposes a refrigerator freezer air duct cover plate mold. When in use, the conveying ends of multiple hydraulic cylinders are respectively connected to the upper mold 6, the inclined guide column 8 and the movable plate 121. When demolding, the hydraulic cylinder is controlled to drive the upper mold 6 and the inclined guide column 8 to move upward, and the output end of the electric cylinder 41 is controlled to drive the second side mold 42 to move left, so that the second side mold 42 is separated from the lower mold 10. Through the separation design, the damage or deformation of the workpiece caused by being stuck in the mold can be avoided. The hydraulic cylinder is controlled to drive the movable plate 121 to move upward, and the ejector pin 122, the vertical rod 125 and the ejector block 126 to move upward, while the inclined ejector rod 124 moves obliquely to the upper left in the supporting mold 3, thereby pushing the workpiece to move toward the second side mold 42, avoiding the problems of undercut and jamming of the workpiece during demolding.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A refrigerator freezer air duct cover plate mold, comprising a bottom plate (1), characterized in that: The upper front and rear parts of the bottom plate (1) are both mounted with support plates (2); the upper ends of the two support plates (2) are jointly mounted with a support mold (3); the middle part of the upper end of the support mold (3) is fixedly sleeved with a lower mold (10); the upper front, rear and right parts of the upper end of the support mold (3) are both mounted with a first side mold (7); the left end of the support mold (3) is mounted with a side mold component (4); the upper end of the lower mold (10) is provided with an upper mold (6); the middle part of the upper end of the bottom plate (1) is mounted with a transverse plate (11); the upper end of the transverse plate (11) is mounted with an ejection component (12); the ejection component (12) extends into the lower mold (10).

2. A refrigerator freezing air duct cover plate mold according to claim 1, characterized in that: The side mold component (4) comprises an electric cylinder (41), two of which are arranged symmetrically in front and back, the two electric cylinders (41) are both mounted on the left end of the supporting mold (3), a second side mold (42) is commonly mounted on the output ends of the two electric cylinders (41), two guide grooves (43) are provided on the left upper end of the second side mold (42), and the lower end of the second side mold (42) is slidably connected to the left upper end of the supporting mold (3).

3. A refrigerator freezing air duct cover plate mold according to claim 1, characterized in that: The ejection component (12) comprises a movable plate (121), the movable plate (121) being arranged at the upper end of the horizontal plate (11), a plurality of ejector pins (122) being fixedly sleeved inside the movable plate (121), a concave block (123) being fixedly sleeved at the middle front portion and the middle rear portion of the upper end of the movable plate (121), a vertical rod (125) being installed at the middle right portion of the upper end of the movable plate (121), an ejection block (126) being installed at the upper ends of the four ejector pins (122), and inclined ejector rods (124) being rotatably connected to the interiors of the two concave blocks (123) via rotating shafts.

4. A refrigerator refrigeration air duct cover plate mold according to claim 3, characterized in that: The upper end of the ejector pin (122), the upper end of the inclined ejector rod (124), the upper end of the ejector block (126) and the upper end of the vertical rod (125) are all movably inserted into the lower wall of the lower mold (10).

5. The refrigerator refrigeration air duct cover plate mold according to claim 3, characterized in that: Springs (14) are installed at the four corners of the upper end of the movable plate (121), and the upper ends of the four springs (14) are fixedly connected to the lower end of the supporting mold (3). The lower end of the supporting mold (3) is installed with a plurality of supporting rods (13), and the lower ends of the supporting rods (13) movably penetrate the lower end of the movable plate (121) and are fixedly connected to the lower end of the horizontal plate (11).

6. The refrigerator freezer air duct cover plate mold according to claim 1, characterized in that: Guide rods (5) are installed at the four corners of the upper end of the supporting mold (3).

7. A refrigerator freezing air duct cover plate mold according to claim 2, characterized in that: The three first side molds (7) and the two guide grooves (43) are all movably connected with inclined guide pillars (8).

Images