High-temperature forming die with part taking function for nut production

Abstract

The present application relates to a kind of high-temperature forming die with piece taking function for nut production, including bottom plate, setting in the dynamic die and fixed die above bottom plate, the through groove is set in the center of dynamic die up and down, the inside of dynamic die is provided with the pouring channel communicated with through groove, the demolding assembly is slidably arranged in through groove, and the demolding assembly includes the slide cylinder for forming the center hole of nut, the outer support plate arranged on the surface of slide cylinder, and the connecting rod arranged in the inside of slide cylinder for controlling the expansion and contraction of outer support plate.The forming die utilizes the center hole of nut as the supporting part of demolding, realizes the automatic demolding of nut and taking, and the pouring channel is arranged in the through groove, further eliminates the burr problem of pouring opening, the burr existing in the inner edge of nut center hole only appears at the connecting place of cavity, through groove and slide cylinder, and the center hole of nut will be further processed in subsequent tapping processing, so that the part of burr does not need to be removed by additional process, and finished nut also does not have burr and rough edge.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of nut production, and particularly relates to a high-temperature forming die with a piece taking function for nut production. BACKGROUND

[0002] There are two common nut manufacturing processes, one is steel stamping forming, tapping and heat treatment, and the other is forming through casting.

[0003] In the production process of the cast nut, the common demolding method is manual clamping demolding, or an elastic member is arranged in the mold cavity, and the cast nut is automatically popped out after casting is completed. SUMMARY

[0004] The application aims to provide a high-temperature forming die with a piece taking function for nut production.

[0005] The application achieves the above-mentioned purpose through the following technical scheme:

[0006] A high-temperature forming die with a piece taking function for nut production comprises a bottom plate, a movable die and a fixed die arranged above the bottom plate, a through groove is arranged in the center of the movable die and penetrates the movable die from top to bottom, a casting channel is arranged in the movable die and communicates with the through groove, a demolding assembly is arranged in the through groove in a sliding manner, the demolding assembly comprises a sliding cylinder for forming a center hole of the nut, an outer support plate arranged on the surface of the sliding cylinder, and a connecting rod arranged in the sliding cylinder for controlling the expansion and contraction of the outer support plate, a driving assembly for driving the sliding cylinder to ascend and descend is further arranged at the upper end of the movable die, and a transmission assembly for transmitting the finished product is arranged at the upper end of the bottom plate.

[0007] Since the center hole of the nut needs to be tapped in the end, the burrs generated in this part can be conveniently processed in the subsequent tapping process, so the demolding assembly is arranged at the position of the center hole of the nut, and the casting port is also arranged in the through groove, thereby solving the burr problem.

[0008] As a further optimization scheme of the application, the fixed die is fixedly arranged at the center of the upper surface of the bottom plate, and a recess cavity is arranged at the upper end of the fixed die.

[0009] As a further optimization scheme of the application, a cooling channel is arranged at the bottom end of the recess cavity of the fixed die for accelerating the cooling forming.

[0010] As a further optimization scheme of the present application, the movable mold is driven to lift by a first cylinder, wherein the first cylinder is arranged above the base plate by a fixing frame, the bottom end of the movable mold is provided with a male module, and the male module forms a complete mold cavity together with the female mold cavity.

[0011] As a further optimization scheme of the present application, the driving assembly comprises a second cylinder arranged at the upper end of the movable mold and a bracket for fixing the second cylinder, the lifting arm at the output end of the second cylinder is in sliding connection with the slide cylinder, and a limiting groove and a limiting block are arranged at the sliding connection position, the bottom end of the lifting arm is provided with a bottom rod hinged with the connecting rod, and the second cylinder is used to drive the slide cylinder to lift and also drive the outer support plate to generate an outward expansion support force, thereby facilitating the lifting of the formed nut.

[0012] As a further optimization scheme of the present application, the inside and bottom end of the lifting arm are provided with a circulating pipe made of metal, the circulating pipe is attached to the inner wall of the slide cylinder and communicates with the inside and outside of the lifting arm, and the position where the circulating pipe communicates with the outside is provided with a water inlet interface and a water outlet interface, which are used to accelerate the cooling of the central hole of the nut and facilitate the force bearing.

[0013] As a further optimization scheme of the present application, the outer surface of the slide cylinder is provided with an arc-shaped groove matched with the outer support plate, the inner surface of the outer support plate is provided with a sliding block extending to the inner wall of the slide cylinder, and the side of the sliding block away from the outer support plate is provided with an inner plate for limiting, wherein the connecting rod is hingedly arranged with the inner plate, and the outer support plate is used to abut against the cooled central hole of the nut, thereby facilitating the removal from the fixed mold.

[0014] As a further optimization scheme of the present application, the transmission assembly comprises a piece taking base obliquely arranged above the base plate, the cross section of the piece taking base is in U shape, a sliding frame is in sliding connection with the inside of the piece taking base, and a free roller is arranged on the inner wall of the sliding frame, wherein a guide wheel and a side groove are respectively arranged between the sliding frame and the piece taking base, and one pair of guide wheels are provided with a driving motor, and the transmission assembly is used to catch and transmit the nuts dropped from the mold.

[0015] The present application has the following beneficial effects:

[0016] The present application uses the central hole of the nut as the support position for demolding, and sets the through groove, the slide cylinder and the outer support plate, so that the automatic demolding and piece taking of the nut are realized without manual operation, the pouring channel is arranged in the through groove, and the burr problem of the pouring port is further eliminated, the burr on the inner edge of the nut central hole only exists in the mold cavity and the connecting position of the through groove and the slide cylinder, the nut central hole will be further processed in the subsequent tapping process, and therefore the part of burr does not need to be removed by an additional process, and the finished nut will not have burr and bur. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1is the overall structure schematic diagram of the present application;

[0018] Figure 2 is the schematic diagram of the present application after the movable die is lifted;

[0019] Figure 3 is the schematic diagram of the present application when casting is carried out;

[0020] Figure 4 is the schematic diagram of the driving assembly and the demolding assembly of the present application;

[0021] Figure 5 is the enlarged view of the A part structure in the present application Figure 4

[0022] Figure 6 is the side view of the transmission assembly of the present application;

[0023] In the figure: 1, bottom plate; 2, mold assembly; 21, fixed die; 22, fixed frame; 23, movable die; 24, first air cylinder; 25, concave die cavity; 26, convex die block; 27, cooling channel; 28, casting channel; 29, through groove; 3, driving assembly; 31, support; 32, second air cylinder; 33, lifting arm; 34, water inlet interface; 35, water outlet interface; 36, limiting block; 37, circulating pipe; 38, bottom rod; 4, demolding assembly; 41, sliding cylinder; 42, arc-shaped groove; 43, sliding block; 44, outer support plate; 45, connecting rod; 46, inner plate; 47, limiting groove; 5, transmission assembly; 51, taking part base; 52, sliding frame; 53, free roller; 54, side groove; 55, guide wheel; 56, driving motor; 6, nut blank. DETAILED DESCRIPTION

[0024] The following further describes the present application in conjunction with the drawings. It is necessary to point out that the following detailed description is only used to further describe the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0025] Example 1

[0026] As Figures 1-6 ​As shown, a high-temperature forming die with a piece-taking function for nut production comprises a bottom plate 1, a movable die 23 and a fixed die 21 arranged above the bottom plate 1, a through groove 29 arranged vertically in the center of the movable die 23, a pouring channel 28 arranged in the movable die 23 and communicating with the through groove 29, a demolding assembly 4 arranged slidingly in the through groove 29, the demolding assembly 4 comprising a sliding cylinder 41 for forming a center hole of the nut, an outer support plate 44 arranged on the surface of the sliding cylinder 41, and a connecting rod 45 arranged in the sliding cylinder 41 for controlling the expansion and contraction of the outer support plate 44, and a driving assembly 3 arranged at the upper end of the movable die 23 for driving the sliding cylinder 41 to ascend and descend, and a transmission assembly 5 arranged at the upper end of the bottom plate 1 for transmitting the finished product.

[0027] Since the center hole of the nut needs to be tapped finally, the burrs generated in this part can be conveniently processed during the subsequent tapping process without additional processes. Therefore, the demolding assembly is arranged at the position of the center hole of the nut, and the sliding cylinder 41 is used as a die for forming the center hole of the nut. The outer support plate 44 is arranged to support and lift the nut after the nut is formed. The pouring channel 2 is also arranged in the through groove 29, which can solve the problem of burrs at the pouring port.

[0028] The fixed die 21 is fixedly arranged at the center of the upper surface of the bottom plate 1, and the upper end of the fixed die 21 is provided with a recess cavity 25. The bottom end of the recess cavity 25 of the fixed die 21 is provided with a cooling channel 27. The movable die 23 is driven to ascend and descend by a first air cylinder 24. The first air cylinder 24 is arranged above the bottom plate 1 by a fixing frame 22. The bottom end of the movable die 23 is provided with a convex die block 26. The cooling channel 27 is arranged to facilitate rapid cooling in the recess cavity 25.

[0029] The driving assembly 3 comprises a second air cylinder 32 arranged at the upper end of the movable die 23 and a support 31 for fixing the second air cylinder 32. The lifting arm 33 at the output end of the second air cylinder 32 is slidingly connected with the sliding cylinder 41, and a limiting groove 47 and a limiting block 36 are arranged at the sliding connection position. The bottom end of the lifting arm 33 is provided with a bottom rod 38 hinged with the connecting rod 45. A circulating pipe 37 made of metal is arranged in the lifting arm 33 and the bottom end of the lifting arm 33. The circulating pipe 37 is attached to the inner wall of the sliding cylinder 41 and communicates with the inside and outside of the lifting arm 33. The water inlet 34 and the water outlet 35 are arranged at the position where the circulating pipe 37 communicates with the outside.

[0030] The purpose of arranging the circulating pipe 37 is to rapidly cool the position of the center hole of the nut, so as to facilitate the expansion force of the outer support plate 44. The circulating pipe 37 is connected with the external water supply device through the water inlet 34 and the water outlet 35 to form a circulating water flow.

[0031] The outer surface of the sliding cylinder 41 is provided with an arc-shaped groove 42 matched with the outer support plate 44, the inner surface of the outer support plate 44 is provided with a sliding block 43 extending to the inner wall of the sliding cylinder 41, and the side of the sliding block 43 away from the outer support plate 44 is provided with an inner plate 46 for limiting, wherein the connecting rod 45 is hingedly arranged with the inner plate 46.

[0032] When the formed nut blank 6 needs to be lifted, the second cylinder 32 slightly lifts to make the connecting rod 45 perpendicular to the bottom rod 38, the connecting rod 45 generates a horizontal thrust to expand the outer support plate 44 outward, and a clamping force is generated on the inner wall of the center hole of the nut, which facilitates lifting the nut blank 6. When demolding, the second cylinder 32 continues to move upward, so that the connecting rod 45 is not kept perpendicular to the bottom plate 38, and the outer support plate 44 loses the expansion force, while the lifting arm 32 continues to move upward, and the sliding cylinder 41 is retracted into the through slot 29 by the limiting block 36, so that the sliding cylinder 41 is separated from the center hole of the nut blank 6, and the demolding is completed.

[0033] The transmission assembly 5 includes a picking base 51 obliquely arranged above the bottom plate 1, the picking base 51 is in a U-shaped cross section, a sliding frame 52 is slidably connected inside the picking base 51, and a free roller 53 is arranged on the inner wall of the sliding frame 52. One pair of guide wheels 55 is arranged with a driving motor 56, and the other pair of guide wheels 55 is arranged with a driving motor 56. The function of the transmission assembly 5 is to collect and aggregate the demolded nut blanks 6, and after the fixed mold 21 is lifted, the driving motor 56 drives the sliding frame 52 to move upwards below the movable mold 23. In order to prevent the friction force between the guide wheels 55 for driving and the side slot 54 from being in contact, a counterweight can be arranged at the end of the sliding frame 52 away from the movable mold 23, so that the guide wheels 55 are always in contact with the bottom surface of the side slot 54 and bear the force. Further, horizontal lines or horizontal teeth can be arranged on the surface of the guide wheels 55 to increase the friction force. When picking, the nut blanks 6 fall on the surface of the free roller 53 and are transmitted and aggregated through the inclined surface.

[0034] The specific embodiments are: 1, mold closing: the first cylinder 24 drives the movable mold 23 to combine with the fixed mold 21 to close the mold, and the second cylinder 32 drives the sliding cylinder 41 to move upwards to leak the casting channel 28, as shown in Figure 3 ;

[0035] 2, casting forming: after quantitative casting through the casting channel 2, the sliding cylinder 41 moves downwards to make the casting liquid fill the mold cavity, and then the center hole of the nut is formed through the sliding cylinder 41, and then the cooling channel 27 and the circulation pipe 37 operate to cool and form;

[0036] 3. Ejection, the second cylinder 32 is slightly lifted, the connecting rod 45 is perpendicular to the bottom bar 38, then the outer support plate 44 is outwardly pressed against the inner wall of the center hole of the nut blank 6, the first cylinder 24 drives the moving die 23 to be lifted, the nut blank 6 is lifted, then the second cylinder 32 is further lifted, the connecting rod 45 is no longer perpendicular to the bottom bar 38, the outer support plate 44 loses the support force and is retracted, the slide cylinder 41 is lifted and retracted into the through slot 29, the nut blank 6 loses the support and falls off;

[0037] 4. Taking out, when the moving die 23 is lifted, the sliding frame 52 is extended and is ready to receive the nut blank 6, the nut blank 6 is collected and gathered through the free roller 53, finally the sliding frame 52 is moved back and is reset, and is ready for the next production cycle.

[0038] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A high-temperature forming die with a part taking function for producing a nut, comprising a bottom plate (1), a movable die (23) and a fixed die (21) arranged above the bottom plate (1), characterized in that: The movable mold (23) is provided with a through groove (29) penetrating from top to bottom at the center, the inside of the movable mold (23) is provided with a pouring channel (28) communicating with the through groove (29), the through groove (29) is slidably provided with a demolding assembly (4), the demolding assembly (4) comprises a slide cylinder (41) for forming a center hole of a nut, an outer support plate (44) arranged on the surface of the slide cylinder (41), and a connecting rod (45) arranged inside the slide cylinder (41) for controlling the expansion and contraction of the outer support plate (44), the upper end of the movable mold (23) is further provided with a driving assembly (3) for driving the slide cylinder (41) to ascend and descend, and the upper end of the bottom plate (1) is provided with a conveying assembly (5) for conveying finished products. The fixed mold (21) is fixedly arranged at the center of the upper surface of the bottom plate (1), and the upper end of the fixed mold (21) is provided with a recessed mold cavity (25). The bottom end of the recessed mold cavity (25) of the fixed mold (21) is provided with a cooling channel (27). The movable mold (23) is driven to ascend and descend by a first air cylinder (24), wherein the first air cylinder (24) is arranged above the bottom plate (1) through a fixing frame (22), and the bottom end of the movable mold (23) is provided with a convex mold block (26). The driving assembly (3) comprises a second air cylinder (32) arranged at the upper end of the movable mold (23) and a support (31) for fixing the second air cylinder (32), the lifting arm (33) at the output end of the second air cylinder (32) is slidably connected with the slide cylinder (41), and a limiting groove (47) and a limiting block (36) are arranged at the sliding connection position, and the bottom end of the lifting arm (33) is provided with a bottom rod (38) hinged with the connecting rod (45). The inside and the bottom end of the lifting arm (33) are provided with a circulating pipe (37) made of metal, the circulating pipe (37) is attached to the inner wall of the slide cylinder (41) and communicates with the inside and the outside of the lifting arm (33), and the position of the circulating pipe (37) communicating with the outside is provided with a water inlet interface (34) and a water outlet interface (35). The outer surface of the slide cylinder (41) is provided with an arc-shaped groove (42) matched with the outer support plate (44), the inner surface of the outer support plate (44) is provided with a sliding block (43) extending to the inner wall of the slide cylinder (41), and the side of the sliding block (43) away from the outer support plate (44) is provided with an inner plate (46) for limiting, and the connecting rod (45) is hingedly arranged with the inner plate (46).

2. The high-temperature forming mold with a piece taking function for nut production according to claim 1, characterized in that: The conveying assembly (5) comprises a taking base (51) arranged obliquely above the bottom plate (1), the taking base (51) is in U-shaped cross section, the inside of the taking base (51) is slidably connected with a sliding frame (52), the inner wall of the sliding frame (52) is provided with a free roller (53), and a guide wheel (55) and a side groove (54) are respectively arranged between the sliding frame (52) and the taking base (51), and one pair of guide wheels (55) are provided with a driving motor (56).

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