Frame type movable mold device and low-pressure casting machine thereof

Abstract

The utility model relates to a frame type movable mold device and a low-pressure casting machine thereof, the frame type movable mold device comprises an upper movable mold plate and a lower movable mold plate, the upper movable mold plate and the lower movable mold plate are connected through a front side plate, and four corners of the upper movable mold plate and four corners of the lower movable mold plate are connected through guide sleeves; an ejection mechanism and a plurality of mold connecting rods are arranged between the upper movable mold plate and the lower movable mold plate, the lower ends of the mold connecting rods are located on the lower movable mold plate, and the upper ends of the mold connecting rods penetrate out of the upper movable mold plate. By adopting the frame type structure, the weight of the whole template is reduced while the thickness is increased in the vertical direction, so that the requirement of stable mold opening can be met, and the weakening of mold opening force is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a movable die device, especially to a frame movable die device, which is used in a low-pressure casting machine and belongs to one of the components of a casting equipment. BACKGROUND

[0002] The movable die plate in the low-pressure casting machine is usually combined with a vertical guide sleeve in the form of an integral plate to perform vertical direction guiding movement to complete the mold opening and closing process. The stability of mold opening and closing is related to the quality performance of the low-pressure cast product. Therefore, the movable die plate needs to be relatively stable and not to shake during the mold opening and closing process. As a result, a longer guide length is required, and the rigidity of the movable die plate is very high. The previous single-layer thick plate structure has a large overall weight, but the thickness in the vertical direction is insufficient, and the mold opening and closing instability caused by the deformation of the plate cannot be reduced. Therefore, the thickness of the plate in the vertical direction needs to be increased, and the weight cannot be increased too much to weaken the mold opening force. Therefore, the utility model is proposed. SUMMARY

[0003] In view of the above technical problems of the prior art, the purpose of the utility model is to provide a frame movable die device and a low-pressure casting machine thereof. The frame structure is adopted to increase the thickness in the vertical direction while reducing the weight of the overall plate. The needs of mold opening stability can be met, and the weakening of the mold opening force can be avoided.

[0004] To achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme:

[0005] A frame movable die device comprises an upper movable die plate and a lower movable die plate. The upper movable die plate and the lower movable die plate are connected through a front side plate, and the four corners of the upper movable die plate and the lower movable die plate are connected through guide sleeves. A plurality of mold connecting rods and an ejection mechanism are arranged between the upper movable die plate and the lower movable die plate. The lower end of the mold connecting rod is located on the lower movable die plate, and the upper end of the mold connecting rod penetrates through the upper movable die plate.

[0006] The ejection mechanism comprises a limiting block, an ejection limiting rod, and a pressing cross bar. The end of the pressing cross bar is connected with an ejection driving device, and the pressing cross bar is provided with a limiting groove. The ejection limiting rod is located in the limiting groove.

[0007] An ejection guide column is arranged on the outside of the ejection limiting rod. The ejection guide column is located on the inside of the frame movable die device.

[0008] A limiting protrusion is arranged on the mold connecting rod. A limiting recess is arranged on the upper movable die plate. The limiting protrusion and the limiting recess are matched.

[0009] A low-pressure casting machine comprises the frame movable die device.

[0010] The low-pressure casting machine comprises an upper workbench plate and a lower workbench plate, and the frame type movable mold device is installed between the upper workbench plate and the lower workbench plate.

[0011] The upper workbench plate is provided with a driving oil cylinder, and an output shaft of the driving oil cylinder is connected with the upper movable mold plate after penetrating through the upper workbench plate.

[0012] Four corners of the upper workbench plate and the lower workbench plate are provided with movement guide columns, the movement guide columns are inserted into guide sleeves, and the frame type movable mold device moves up and down along with the guide sleeves along the movement guide columns.

[0013] The frame type movable mold device and the low-pressure casting machine have the following beneficial effects:

[0014] 1、The movable mold device adopts the splicing frame type structure of the upper movable mold plate, the lower movable mold plate and the front side plate, is connected through a plurality of plate screws, the thickness of the movable mold device in the vertical direction is increased, the rigidity of the movable mold device is improved, the plate is processed in a split mode, the processing difficulty is reduced, and a large amount of cost is saved.

[0015] 2、When the movable mold device is used, the mold is connected from the top of the upper movable mold plate through the mold connecting rod, the limiting convex is made to enter the limiting groove by rotating the mold connecting rod, and the mold and the frame type movable mold device are quickly fixed.

[0016] 3、The ejection guide column in the utility model is fixed on the inner side of the frame type movable mold device, the rigidity of the ejection mechanism is increased, the problem that the product is not stably ejected due to excessive ejection force is solved, the ejection mechanism is provided with the pressing cross rod, the function of automatic locking and loosening of the mold connecting rod is realized through the pushing and pulling mode of the two side oil cylinders.

[0017] 4、The overall frame structure increases the rigidity of the whole equipment and reduces the instability of the whole equipment caused by vibration in the mold opening process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the frame type movable mold device;

[0019] Figure 2 It is a side view structure schematic view of the frame type movable mold device;

[0020] Figure 3 It is a sectional view structure schematic view of the mold connecting rod in the frame type movable mold device;

[0021] Figure 4 It is a sectional view structure schematic view of the ejection limiting rod in the frame type movable mold device;

[0022] Figure 5 It is the sectional view structural schematic diagram of the ejection guide column in the frame type movable mold device of the utility model;

[0023] Figure 6 It is the three-dimensional structural schematic diagram of the low pressure casting machine of the utility model;

[0024] Figure 7 It is the side view structural schematic diagram of the low pressure casting machine of the utility model;

[0025] Among them, 1 is the upper movable mold plate, 2 is the lower movable mold plate, 3 is the front side plate, 4 is the guide sleeve, 5 is the mold connecting rod, 6 is the limiting block, 7 is the ejection limiting rod, 8 is the compression cross bar, 9 is the ejection driving device, 10 is the limiting groove, 11 is the ejection guide column, 12 is the limiting protrusion, 13 is the upper workbench plate, 14 is the lower workbench plate, 15 is the driving oil cylinder, 16 is the movement guide column, 17 is the output shaft. DETAILED DESCRIPTION

[0026] The utility model will be further described in connection with specific embodiments, but the protection scope of the utility model is not limited to this.

[0027] As Figures 1-5 The utility model discloses a frame type movable mold device, including upper movable mold plate 1 and lower movable mold plate 2, upper movable mold plate 1 and lower movable mold plate 2 are connected through front side plate 3, and four corners of upper movable mold plate 1 and lower movable mold plate 2 are connected through guide sleeve 4. That is, the utility model adopts the splicing frame type structure of upper movable mold plate 1, lower movable mold plate 2 and front side plate 3, is connected through multiple board screws, increases the thickness of movable mold device vertical direction, improves the rigidity of movable mold device, and through the split processing of board material, reduces the processing difficulty, saves a large amount of cost simultaneously.

[0028] Secondly, the upper movable mold plate 1 and the lower movable mold plate 2 in the utility model are provided with an ejection mechanism and a plurality of mold connecting rods 5, the lower end of the mold connecting rod 5 is located on the lower movable mold plate 2, and the upper end of the mold connecting rod 5 penetrates out of the upper movable mold plate 1. The mold connecting rod 5 is provided with a limiting protrusion 12, and the upper movable mold plate 1 is provided with a limiting recess (which is blocked by the limiting protrusion 12 in the utility model drawings, so it is not marked). The limiting protrusion 12 is matched with the limiting recess. When in use, the mold is connected from the top of the upper movable mold plate 1 through the mold connecting rod 5, the limiting protrusion 12 is made to enter the limiting recess by rotating the mold connecting rod 5, so that the mold and the frame type movable mold device are quickly fixed.

[0029] Again, the ejection mechanism includes a limiting block 6, the limiting block 6 is internally provided with an ejection limiting rod 7 and a pressing cross rod 8, the end of the pressing cross rod 8 is connected with an ejection driving device 9, the ejection driving device 9 can be a commonly used oil cylinder, etc., and the pressing cross rod 8 is provided with a limiting groove 10, and the ejection limiting rod 7 is located in the limiting groove 10. When in use, the limiting block 6 is two, which are respectively located at the two ends of the pressing cross rod 8, and the part of the pressing cross rod 8 located in the limiting block 6 is provided with the limiting groove 10, that is, one pressing cross rod 8 is provided with two limiting grooves 10, and each limiting groove 10 is provided with the ejection limiting rod 7; the ejection driving device 9 drives the pressing cross rod 8 to move back and forth, so that the ejection limiting rod 7 is locked or unlocked in the limiting groove 10, and finally the function of automatically locking or loosening the mold connecting rod 5 is realized.

[0030] Moreover, the ejection limiting rod 7 is externally provided with an ejection guide column 11, the ejection guide column 11 is located at the inner side of the frame type movable mold device, the rigidity of the ejection mechanism is increased, and the problem that the ejection is unstable due to the excessive product ejection force is solved.

[0031] As shown in Figure 6 and 7 The low-pressure casting machine comprises an upper workbench plate 13 and a lower workbench plate 14, and the frame type movable mold device is installed between the upper workbench plate 13 and the lower workbench plate 14. The upper workbench plate 13 is provided with a driving oil cylinder 15, and the output shaft 17 of the driving oil cylinder 15 is connected with the upper movable mold plate 1 after penetrating through the upper workbench plate 13. At this time, the ejection mechanism as described above is provided with two sets, and the two sets of ejection mechanisms are respectively located at the two sides of the output shaft 17.

[0032] Further, the four corners of the upper workbench plate 13 and the lower workbench plate 14 are provided with movement guide columns 16, the movement guide columns 16 are inserted into the guide sleeves 4, and the frame type movable mold device moves up and down along the movement guide columns 16 with the guide sleeves 4.

[0033] The overall frame structure increases the rigidity of the whole equipment and reduces the instability of the whole equipment caused by vibration in the mold opening process.

[0034] The above embodiment is only used for explaining the inventive concept of the utility model, and is not limited to the protection of the utility model, and any non-essential modification of the utility model by using the concept shall fall within the protection scope of the utility model.

Claims

1. A frame-type movable mold device characterized by comprising: The frame type movable mold device comprises an upper movable mold plate and a lower movable mold plate, the upper movable mold plate and the lower movable mold plate are connected through a front side plate, and the four corners of the upper movable mold plate and the lower movable mold plate are connected through guide sleeves; a plurality of mold connecting rods are arranged between the upper movable mold plate and the lower movable mold plate, the lower end of the mold connecting rod is arranged on the lower movable mold plate, and the upper end of the mold connecting rod penetrates through the upper movable mold plate.

2. The frame die set of claim 1 wherein: The ejection mechanism comprises a limiting block, a limiting block is arranged in the limiting block, an ejection limiting rod and a pressing cross rod are arranged in the limiting block, the end of the pressing cross rod is connected with an ejection driving device, the pressing cross rod is provided with a limiting groove, and the ejection limiting rod is arranged in the limiting groove.

3. The frame die set of claim 2 wherein: The outer part of the ejection limiting rod is provided with an ejection guide column, and the ejection guide column is arranged on the inner side of the frame type movable mold device.

4. The frame die set of claim 1 wherein: The mold connecting rod is provided with a limiting protrusion, the upper movable mold plate is provided with a limiting groove, and the limiting protrusion is matched with the limiting groove.

5. A low pressure casting machine characterized by: The frame type movable mold device comprises the frame type movable mold device of any one of claims 1-4.

6. The low pressure casting machine of claim 5, wherein: The frame type movable mold device is arranged between the upper workbench plate and the lower workbench plate.

7. The low pressure casting machine of claim 6, wherein: The upper workbench plate is provided with a driving oil cylinder, and the output shaft of the driving oil cylinder is connected with the upper movable mold plate after penetrating through the upper workbench plate.

8. The low pressure casting machine of claim 6, wherein: The four corners of the upper workbench plate and the lower workbench plate are provided with movement guide columns, the movement guide columns are inserted into the guide sleeves, and the frame type movable mold device moves up and down along the movement guide columns with the guide sleeves.

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