Forming die for multi-section thread screw

Abstract

The utility model provides a forming die for a multi-section threaded screw, and relates to the technical field of forming of the multi-section threaded screw, the forming die for the multi-section threaded screw comprises a bottom plate, a base, a lower die cavity, an upper die cavity, a guide rod, sliding seats and side cavities, the side cavities of the two sliding seats can be spliced to form a containing cavity, the upper die cavity can be placed in the containing cavity, and the lower die cavity can be placed in the guide rod. The forming mold comprises a bottom plate, a sliding seat is arranged on the bottom plate, a pouring opening and an exhaust opening are further formed in the sliding seat, the forming mold further comprises two side plates, one ends of the two side plates are connected through an end plate, the end plate is rotationally connected with the bottom plate, a top plate is further arranged between the two side plates, and a handle is arranged on the upper surface of the top plate. The upper die cavity and the lower die cavity are rapidly fixed, no bolt is used in the whole process, the fixing efficiency of the upper die cavity and the lower die cavity can be improved, the screw rod is more convenient to take out, the situation that the bolt is lost does not exist due to the fact that the bolt is not used in the fixing process, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-segment thread screw forming, in particular to a forming die for a multi-segment thread screw. Background Art

[0002] In an extruder, materials are conveyed through an extrusion screw. In order to avoid the formation of air chambers in the conveyed materials, a stepped screw is provided, and the thread specifications on the outer surface of the screw are gradually reduced, that is, the outer diameter of the thread on the screw near the inlet is the largest, and the outer diameter of the thread on the screw near the outlet is the smallest, thereby improving the density of the conveyed materials. When processing and manufacturing such a screw, a forming mold is required, that is, the raw material melted into a liquid is first injected into the mold to form a rough blank, and then it is fine-processed on a lathe to complete the processing and manufacturing of the screw. When using the existing forming mold, the mold needs to be fixed together by multiple bolts. However, due to the large number of bolts, installation and disassembly take a lot of time, and the scattered bolts are also easy to lose, which is not convenient to use. Utility Model Content

[0003] The purpose of the present invention is to provide a forming die for a multi-segment threaded screw, aiming to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the forming mold for the multi-stage threaded screw includes a bottom plate, a base is provided on the conveying bottom plate, the upper end of the base is open, a lower mold cavity is placed inside the base, and an upper mold cavity is spliced ​​with the lower mold cavity, and the upper mold cavity is located above the lower mold cavity, and guide rods are respectively provided on both sides of the base, and the two ends of the slide are respectively slidably connected to the guide rods, and a side cavity is opened on the side of the two slides close to the base, and the side cavities of the two slides can be spliced ​​into an accommodating cavity, and the upper mold cavity can be placed in the accommodating cavity, and a casting port and an exhaust port are also provided on the slide, and the two side plates are also provided, one end of the two side plates is connected by an end plate, and the end plate is rotatably connected to the bottom plate, and a top plate is provided between the two side plates, and a handle is provided on the upper surface of the top plate.

[0005] Preferably, a compressible pad is provided on the inner side of the side panel.

[0006] Preferably, the side of the slide seat is provided with a side rod, and the side plate and the pad are both provided with a card slot.

[0007] Preferably, the lower end of the slot is flared.

[0008] Preferably, a limit block is provided in the middle of the guide rod, and a positioning groove for accommodating the limit block is provided on the side of the slide seat.

[0009] The beneficial effects of the utility model are:

[0010] This type of forming mold can quickly fix the upper mold cavity and the lower mold cavity by moving the slide and flipping the side plate and the top plate. No bolts are used in the entire process, which can improve the fixing efficiency of the upper mold cavity and the lower mold cavity. It is also more convenient to remove the screw. Since no bolts are used during fixation, there is no possibility of bolt loss, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0012] Figure 2 This is a schematic diagram after the side panel is flipped over.

[0013] Figure 3 It is a schematic diagram of the structure after the slide is removed.

[0014] Figure 4 It is a structural diagram of the base.

[0015] Figure 5 It is a structural diagram of the lower mold cavity.

[0016] Figure 6 It is a cross-sectional view of the upper mold cavity and the lower mold cavity.

[0017] In the figure: 1. Screw; 2. Bottom plate; 3. Base; 4. Lower mold cavity; 5. Upper mold cavity; 6. Guide rod; 7. Slide; 8. Side cavity; 9. Casting port; 10. Exhaust port; 11. Side plate; 12. End plate; 13. Top plate; 14. Handle; 15. Pad; 16. Side rod; 17. Limit block. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0019] like Figure 1-6As shown, a forming mold for a multi-stage threaded screw includes a bottom plate 2, a base 3 is provided on the conveying bottom plate 2, the upper end of the base 3 is open, a lower mold cavity 4 is placed inside the base 3, and an upper mold cavity 5 is spliced ​​with the lower mold cavity 4, and the upper mold cavity 5 is located above the lower mold cavity 4. Guide rods 6 are respectively provided on both sides of the base 3, and the two slides 7 are also provided on both sides of the base 3. The two ends of the slide 7 are respectively slidably connected to the guide rods 6, and a side cavity 8 is provided on the side of the two slides 7 close to the base 3. The side cavities 8 of the two slides 7 can be spliced ​​into an accommodating cavity, and the upper mold cavity 5 can be placed in the accommodating cavity. A pouring port 9 and an exhaust port 10 are also provided on the slide 7, and two side plates 11 are also provided. One end of the two side plates 11 is connected by an end plate 12, and the end plate 12 is rotatably connected to the bottom plate 2. A top plate 13 is also provided between the two side plates 11, and a handle 14 is provided on the upper surface of the top plate 13.

[0020] The position of the base 3 on the bottom plate 2 is fixed. Before processing the screw 1, first place the lower mold cavity 4 into the base 3, and then place the upper mold cavity 5 above the upper mold cavity 5, so that the upper mold cavity 5 and the lower mold cavity 4 are completely spliced, and then control the two slides 7 to move along the guide rod 6, and make the two slides 7 close to each other. When the two slides 7 are completed, the upper mold cavity 5 is located between the two slides 7, and then control the top plate 13 and the side plate 11 to flip through the handle 14, and limit the movement of the slide 7 on the guide rod 6 through the side plate 11. By setting the top plate 13 and the end plate 12, the stability between the two side plates 11 can be improved. After the positioning of the two slides 7 is completed, the molten metal is poured into the pouring port 9, so that the molten metal flows and fills the space between the upper mold cavity 5 and the lower mold cavity 4. The air in the upper mold cavity 5 and the lower mold cavity 4 is discharged through the exhaust port 10. When molten metal appears in the exhaust port 10, it indicates that the space between the upper mold cavity 5 and the lower mold cavity 4 is full of molten metal. Then wait for it to cool down and solidify. When taking out the screw 1, first flip the top plate 13 and the side plate 11 through the handle 14, then open the two slides 7 and move them away from each other, and then take out the upper mold cavity 5, the lower mold cavity 4 and the screw 1 between the upper mold cavity 5 and the lower mold cavity 4 from the base 3.

[0021] Furthermore, a compressible pad 15 is provided on the inner side of the side panel 11. The pad 15 is made of rubber. When the side panel 11 is flipped to one side of the slide 7, the pad 15 is in a compressed state to improve the stability of the slide 7 and prevent it from shaking.

[0022] Furthermore, a side rod 16 is provided on the side of the slide 7, and a card slot is provided on the side plate 11 and the pad 15. The side rod 16 is used to facilitate the control of the movement of the slide 7, and the presence of the card slot will not affect the normal rotation of the side plate 11 and the pad 15.

[0023] Furthermore, the lower end of the slot is flared to prevent the side rod 16 from abutting against the lower end of the slot, thereby ensuring that the side plate 11 can rotate normally.

[0024] Furthermore, a limit block 17 is provided in the middle of the guide rod 6, and a positioning groove for accommodating the limit block 17 is opened on the side of the slide 7. When the limit block 17 enters the positioning groove, the slide 7 can be quickly positioned, thereby improving the positioning efficiency of the slide 7 and further improving work efficiency.

[0025] This type of forming mold can quickly fix the upper mold cavity 5 and the lower mold cavity 4 by moving the slide 7 and flipping the side plate 11 and the top plate 13. No bolts are used in the entire process, which can improve the fixing efficiency of the upper mold cavity 5 and the lower mold cavity 4. It is also more convenient to remove the screw 1. Since no bolts are used during fixation, there is no possibility of bolt loss, and it is easy to use.

[0026] In the description of this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A forming die for a multi-stage screw, characterized in that: The cam is provided with a plurality of sliding seats, each of which is connected to the guide rods of the cam, and the sliding seats are provided with a plurality of sliding seats on both sides of the base. The two ends of the sliding seats are respectively connected to the guide rods. A side cavity is provided on the side of the two sliding seats close to the base. The side cavities of the two sliding seats can be combined into an accommodating cavity. The upper mold cavity can be placed in the accommodating cavity. A pouring port and an exhaust port are also provided on the sliding seat. The cam is provided with two side plates, one end of the two side plates is connected by an end plate, and the end plate is rotatably connected to the bottom plate. A top plate is provided between the two side plates, and a handle is provided on the upper surface of the top plate.

2. The forming die for a multi-stage screw according to claim 1, wherein: The inner side surface of the side plate is provided with a compressible pad.

3. The forming die for the multi-stage screw according to claim 2, wherein: Side rods are provided on the sides of the slide seat, and slots are provided on the side plates and the pad.

4. The forming die for the multi-stage screw according to claim 3, wherein: The lower end of the slot is in a flared shape.

5. The forming die for a multi-stage screw according to any one of claims 1 to 4, wherein: A limit block is provided in the middle of the guide rod, and a positioning groove for accommodating the limit block is provided on the side of the slide seat.

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