Rapid prototyping device of three-way pneumatic prototyping machine

Abstract

The present invention belongs to the technical field of three-way pipe production, and discloses a rapid prototyping device of a split three-way pneumatic molding machine, comprising a base, an upper surface of the base is fixedly connected with a bracket, a clamping mechanism is installed on the bracket, a straight tube shaping mechanism is arranged below the clamping mechanism, and a water inlet pipe of the cooling mechanism is used for two-way water flow, so that the cooling water passes through a second bend pipe to dissipate heat to the three-way pipe at the position of the right-angle pipe shaping mechanism, and at the same time, the cooling water enters the connecting pipe through a first bend pipe close to the water inlet pipe, thereby increasing the co-flow time of the cold water in the mold, and is discharged from the mold through the first bend pipe connected to the water outlet pipe. Multiple groups of first bend pipes and second bend pipes increase the contact area with the mold, thereby increasing the cooling range during injection molding of the three-way pipe, improving the uniformity of cooling, thereby improving the cooling efficiency of the three-way pipe injection molding, and the three-way pipes after cooling are centrally collected by a feeding mechanism, thereby reducing the labor of manual picking and placing.

Description

Technical Field

[0001] The invention belongs to the technical field of three-way pipe production, and in particular relates to a rapid prototyping device of a flow-dividing three-way pneumatic prototyping machine. Background Art

[0002] With the extensive use of pipelines in various industries, tees are used when diversion is required. Tees are generally formed by hot pressing, cold forming and other forming methods. There are many types of tees, among which thin-walled tees are more and more widely used.

[0003] During the process of injection molding the three-way pipe fitting, the mold needs to be placed in the inner wall of the mold through the inner mold core for matching, and the material is injected into the inner wall of the mold for cooling and molding, thereby forming a hollow three-way pipe fitting to achieve the effect of injection molding;

[0004] When the existing tee forming device forms a tee in one-time molding, it is necessary to inject molding liquid into the tee molding cavity inside the mold through the injection port, and then the molding liquid in the tee molding cavity needs to be naturally cooled and molded. Natural cooling molding will greatly increase the molding time of the metal tee. At the same time, the tee after cooling and molding has a high temperature, which is inconvenient to take out, affecting work efficiency.

[0005] To this end, we propose a rapid forming device for a split tee pneumatic forming machine to solve the problems existing in the prior art, facilitate the rapid cooling and forming of the formed tee, shorten the cooling and forming time of the tee, and facilitate the removal of the cooled and formed tee, thereby improving the efficiency of tee production. Summary of the invention

[0006] The object of the present invention is to provide a rapid prototyping device for a split tee pneumatic prototyping machine, so as to solve the problem in the prior art proposed in the above background technology that the injection liquid inside the tee molding cavity needs to be naturally cooled and formed, and the natural cooling molding will greatly increase the molding time of the metal tee. At the same time, the tee after cooling and molding has a high temperature, which is inconvenient to take out, affecting the work efficiency.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] The invention discloses a rapid prototyping device for a split three-way pneumatic prototyping machine, comprising a base, a bracket fixedly connected to the upper surface of the base, a clamping mechanism installed on the bracket, a straight tube shaping mechanism arranged below the clamping mechanism, an upper mold installed below the straight tube shaping mechanism, a lower mold fixedly connected to the upper surface of the base, a right-angle tube shaping mechanism arranged on the upper surface of the base, the right-angle tube shaping mechanism and the straight tube shaping mechanism are vertically staggered, a feeding mechanism fixedly connected to one side of the base, and cooling mechanisms are arranged inside the upper mold and the lower mold.

[0009] Furthermore, the cooling mechanism includes two groups of water inlet pipes, connecting pipes and water outlet pipes, the connecting pipes are connected to multiple groups of first curved pipes, the multiple groups of first curved pipes are respectively connected to the two groups of water inlet pipes and water outlet pipes, and a second curved pipe is connected between the two groups of water inlet pipes.

[0010] Furthermore, the unloading mechanism includes a side panel, a symmetrically arranged first hinge seat and a unloading hopper, a receiving groove for rotatably connecting the unloading hopper is opened in the middle of one side of the side panel, two groups of the first hinge seats are fixedly connected to one side of the side panel, a third cylinder is rotatably connected inside the first hinge seat, the telescopic end of the third cylinder is rotatably connected to the second hinge seat, and two groups of the second hinge seats are rotatably connected to both sides of the unloading hopper respectively.

[0011] Furthermore, the lower surface of the upper mold is provided with a plurality of docking holes, the upper surface of the lower mold is fixedly connected with docking blocks plugged into the plurality of docking holes, and the upper surface of the upper mold is provided with an injection tube connected to the mold cavity.

[0012] Furthermore, the clamping mechanism includes a first cylinder installed on the upper surface of the bracket and multiple groups of limit rods passing through the bracket, the telescopic end of the first cylinder passes through the bracket and is fixedly connected to the connecting frame, and the lower ends of the multiple groups of limit rods are fixedly connected to the upper surface of the connecting frame.

[0013] Furthermore, the straight tube shaping mechanism includes two groups of fixed plates, two groups of screws are rotatably connected between the two groups of fixed plates, one end of the two groups of screws passes through the fixed plates and is fixedly connected to gears, the opposite ends of the two groups of screws are threadedly connected to connecting plates, and the opposite sides of the two groups of connecting plates are provided with first connecting pieces, and the connecting plates are detachably connected to the straight tube shaping columns through the first connecting pieces.

[0014] Furthermore, the connecting frame is provided with a rectangular groove for sliding connection of two groups of connecting plates, the connecting plates are slidably connected to the upper surface of the upper mold, one group of the screws is driven by a motor at one end away from the gear, one group of the straight tube forming columns is fixedly connected with a protrusion at one end, and the other group of the straight tube forming columns is provided with a groove at one end for the protrusion to be inserted.

[0015] Furthermore, the right-angle tube shaping mechanism includes a second cylinder and an angle plate, the second cylinder is arranged on the lower surface of the base, the upper surface of the base is provided with a bottom groove for sliding connection of the angle plate, a second connecting piece is provided at the upper end of one side of the angle plate, and the angle plate is detachably connected to the right-angle tube shaping column through the second connecting piece.

[0016] Furthermore, a three-way pipe injection cavity is provided on the lower surface of the upper mold and the upper surface of the lower mold, and the first curved pipe and the second curved pipe are both arranged in the shape of a quarter of a circle.

[0017] Furthermore, the connecting plate is arranged in an L shape, and the axis of the straight tube shaping column and the axis of the three-way tube injection cavity of the upper mold are arranged on the same straight line.

[0018] Compared with the prior art, the rapid prototyping device of the split three-way pneumatic prototyping machine proposed by the present invention has the following advantages:

[0019] 1. The present invention uses the water inlet pipe of the cooling mechanism to carry out two-way water flow through the cooperation between the cooling mechanism and the blanking mechanism, so that the cooling water passes through the second elbow to dissipate the heat of the three-way pipe at the position of the right-angle pipe shaping mechanism. At the same time, the cooling water enters the connecting pipe through the first elbow close to the water inlet pipe, which increases the time for the cold water to flow in the mold. When the cold water is discharged from the mold through the first elbow connected to the water outlet pipe, multiple groups of the first elbow and the second elbow increase the contact area with the mold, thereby improving the cooling range of the three-way pipe during injection molding, improving the uniformity of cooling, and thus improving the cooling efficiency of the three-way pipe injection molding. The three-way pipes after cooling are centrally collected by the blanking mechanism, which reduces the labor of manual picking and placing.

[0020] 2. The present invention cooperates among the mold clamping mechanism, the straight tube forming mechanism and the right-angle tube forming mechanism, and utilizes the mold clamping mechanism to facilitate the opening and closing of the upper mold and the lower mold. At the same time, a motor is used to drive the screw to rotate, and the gears are engaged with each other, so that the connecting plate drives the straight tube forming column to insert into the two ends of the straight tube of the mold. At the same time, the second cylinder drives the right-angle tube forming column on the angle plate to insert into the other end of the three-way tube of the mold, thereby realizing the sealing of the opening of the three-way tube mold, thereby facilitating the rapid injection molding of the three-way tube and improving the molding efficiency of the three-way tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall rear view structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the lower mold structure of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the straight tube shaping mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the upper mold structure of the present invention when viewed from above;

[0026] Figure 6 It is a schematic structural diagram of the material unloading mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the cooling mechanism structure of the present invention.

[0028] In the figure: 1, base; 2, bracket; 3, mold clamping mechanism; 31, first cylinder; 32, limit rod; 33, connecting frame; 4, upper mold; 41, docking hole; 42, injection tube; 5, straight tube shaping mechanism; 51, fixing plate; 52, screw; 53, motor; 54, gear; 55, connecting plate; 56, straight tube shaping column; 57, first connecting piece; 58, bump; 59, groove; 6, lower mold ; 61. docking block; 7. right-angle tube shaping mechanism; 71. second cylinder; 72. angle plate; 73. second connecting piece; 74. right-angle tube shaping column; 8. cooling mechanism; 81. water inlet pipe; 82. water outlet pipe; 83. connecting pipe; 84. first bend pipe; 85. second bend pipe; 9. unloading mechanism; 91. side plate; 92. first hinge seat; 93. third cylinder; 94. second hinge seat; 95. unloading hopper. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] The present invention provides Figure 1-7 The shown split-flow three-way pneumatic forming machine rapid prototyping device comprises a base 1, the upper surface of the base 1 is fixedly connected with a bracket 2, a clamping mechanism 3 is installed on the bracket 2, a straight tube molding mechanism 5 is arranged below the clamping mechanism 3, an upper mold 4 is installed below the straight tube molding mechanism 5, a lower mold 6 is fixedly connected to the upper surface of the base 1, a right-angle tube molding mechanism 7 is arranged on the upper surface of the base 1, the right-angle tube molding mechanism 7 and the straight tube molding mechanism 5 are vertically staggered, a feeding mechanism 9 is fixedly connected to one side of the base 1, and cooling mechanisms 8 are arranged inside the upper mold 4 and the lower mold 6.

[0031] The cooling mechanism 8 includes two groups of water inlet pipes 81, a connecting pipe 83 and a water outlet pipe 82. The connecting pipe 83 is connected to multiple groups of first curved pipes 84, and the multiple groups of first curved pipes 84 are respectively connected to the two groups of water inlet pipes 81 and the water outlet pipes 82. A second curved pipe 85 is connected between the two groups of water inlet pipes 81. The water inlet ends of the two groups of water inlet pipes 81 are respectively arranged on both sides of the upper mold 4, so that cold water is injected into the upper mold 4 at the same time. The contact range with the upper mold 4 is increased through the second curved pipe 85 and the first curved pipe 84, and the uniformity of cooling is improved at the same time, which greatly shortens the cooling molding time of the three-way pipe. The cooling mechanism 8 in the lower mold 6 is arranged in the same way.

[0032] The unloading mechanism 9 includes a side plate 91, a symmetrically arranged first hinge seat 92 and a unloading hopper 95. A receiving groove for rotatably connecting the unloading hopper 95 is provided in the middle of one side of the side plate 91. Two groups of first hinge seats 92 are fixedly connected to one side of the side plate 91. A third cylinder 93 is rotatably connected inside the first hinge seat 92. The telescopic end of the third cylinder 93 is rotatably connected to a second hinge seat 94. Two groups of second hinge seats 94 are rotatably connected to both sides of the unloading hopper 95 respectively. The telescopic end of the third cylinder 93 is contracted to make the unloading hopper 95 flip over. One end of the unloading hopper 95 flips over to the bottom of the upper mold 4, thereby facilitating the material connection and facilitating the collection and processing of the three-way pipe.

[0033] The lower surface of the upper mold 4 is provided with a plurality of docking holes 41, and the upper surface of the lower mold 6 is fixedly connected with docking blocks 61 plugged into the plurality of docking holes 41. The upper surface of the upper mold 4 is provided with an injection tube 42 connected to the mold cavity, which is fitted with the docking blocks 61 through the docking holes 41, thereby improving the sealing performance of the upper mold 4 and the lower mold 6 after docking, and improving the quality of the injection molded three-way pipe.

[0034] The mold closing mechanism 3 includes a first cylinder 31 installed on the upper surface of the bracket 2 and multiple groups of limit rods 32 that penetrate the bracket 2. The telescopic end of the first cylinder 31 penetrates the bracket 2 and is fixedly connected to a connecting frame 33. The lower ends of the multiple groups of limit rods 32 are fixedly connected to the upper surface of the connecting frame 33. The first cylinder 31 is used to conveniently drive the connecting frame 33 to rise and fall. Since the upper mold 4 is fixedly connected to the lower end of the connecting frame 33, the upper mold 4 and the lower mold 6 are driven to close the mold, thereby improving the efficiency of closing and opening the mold.

[0035] The straight tube shaping mechanism 5 includes two groups of fixed plates 51, and two groups of screw rods 52 are rotatably connected between the two groups of fixed plates 51. One end of the two groups of screw rods 52 passes through the fixed plate 51 and is fixedly connected to a gear 54. The opposite ends of the two groups of screw rods 52 are threadedly connected to a connecting plate 55. The opposite sides of the two groups of connecting plates 55 are provided with a first connecting piece 57. The connecting plate 55 is detachably connected to a straight tube shaping column 56 through the first connecting piece 57. The screw rod 52 is meshed with the gear 54, so that the two groups of connecting plates 55 can be conveniently moved relative to each other, so that the straight tube shaping column 56 can be inserted between the upper mold 4 and the lower mold 6 to improve the injection molding quality. At the same time, it is convenient to pull the straight tube shaping column 56 out of the upper mold 4, cancel the support for the three-way pipe, and thus facilitate the blanking of the three-way pipe.

[0036] A rectangular groove is provided on the connecting frame 33 for sliding connection of two groups of connecting plates 55, and the connecting plates 55 are slidably connected to the upper surface of the upper mold 4. One end of one group of screws 52 away from the gear 54 is driven by the motor 53, one end of one group of straight tube shaping columns 56 is fixedly connected with a protrusion 58, and one end of another group of straight tube shaping columns 56 is provided with a groove 59 for plugging the protrusion 58. The two groups of straight tube shaping columns 56 are seamlessly connected using the protrusion 58 and the groove 59. At the same time, a semicircular hole is provided on the outer side of the straight tube shaping column 56 for plugging the right-angle tube shaping column 74, so as to ensure that the inner diameter of the three-way pipe is the same during injection molding, thereby improving the quality of the three-way pipe.

[0037] The right-angle tube shaping mechanism 7 includes a second cylinder 71 and an angle plate 72. The second cylinder 71 is arranged on the lower surface of the base 1. The upper surface of the base 1 is provided with a bottom groove for the sliding connection of the angle plate 72. A second connecting piece 73 is provided on the upper end of one side of the angle plate 72. The angle plate 72 is detachably connected to the right-angle tube shaping column 74 through the second connecting piece 73. The angle plate 72 is driven to move by the second cylinder 71, which facilitates the insertion of the right-angle tube shaping column 74 into one end of the three-way pipe, so as to seamlessly connect with the semicircular hole on the straight pipe shaping column 56, thereby improving the forming quality of the three-way pipe.

[0038] A three-way pipe injection cavity is provided on the lower surface of the upper mold 4 and the upper surface of the lower mold 6. The first bend 84 and the second bend 85 are both arranged in a quarter-circular ring. After the upper mold 4 and the lower mold 6 are connected, a T-shaped injection cavity is formed inside. When the straight tube molding column 56 and the right-angle tube molding column 74 are filled, a three-way pipe molding cavity is formed in the injection cavity to facilitate the injection molding of the three-way pipe.

[0039] The connecting plate 55 is arranged in an L shape, and the axis of the straight tube shaping column 56 is arranged on the same straight line as the axis of the three-way tube injection cavity of the upper mold 4, which improves the molding efficiency of the three-way tube. At the same time, the first connecting member 57 and the second connecting member 73 both include blocks, bolts and locking nuts, which facilitate the disassembly and assembly of the straight tube shaping column 56 and the right-angle tube shaping column 74, so as to facilitate the molding of three-way tubes with different inner diameters and improve the scope of application.

[0040] When in use, the first cylinder 31 drives the connecting frame 33 and the upper mold 4 to descend, and the docking block 61 on the lower mold 6 is inserted into the docking hole 41 of the upper mold 4 to complete the mold closing, and the motor 53 drives the screw 52 to rotate. The two groups of screws 52 are meshed and rotate in opposite directions through the gear 54. The screw 52 drives the connecting plate 55 to move relatively, so that the two groups of straight tube shaping columns 56 are relatively close to each other and inserted into the injection molding cavity of the upper mold 4 and the lower mold 6. The two groups of straight tube shaping columns 56 are docked stably and seamlessly through the protrusions 58 and the grooves 59. At the same time, the second cylinder 71 drives the angle plate 72 to approach the lower mold 6, so that the right-angle tube shaping columns 74 on the angle plate 72 are inserted into the injection molding cavity of the upper mold 4 and the lower mold 6, and seamlessly dock with the semicircular holes on the straight tube shaping columns 56. Injection molding is performed using the injection tube 42, so that the injection liquid fills the straight tube shaping columns 56, the right-angle tube shaping columns 74, and the three-way tube cavity between the upper mold 4 and the lower mold 6;

[0041] After the injection molding is completed, cooling water is introduced into the water inlet pipe 81, and the cooling water passes through the second bend pipe 85, the first bend pipe 84 and the connecting pipe 83 in turn, and is finally discharged through the water outlet pipe 82, and this reciprocating process greatly shortens the molding time of the three-way pipe and improves the molding efficiency of the three-way pipe. After cooling and molding, the right-angle tube molding mechanism 7 is reset first, and after the mold clamping mechanism 3 is reset, the first cylinder 31 tilts the lower hopper 95, so that the lower hopper 95 is located below the upper mold 4. Finally, the straight tube molding mechanism 5 is reset to release the support for the three-way pipe, so that the three-way pipe falls into the lower hopper 95 for collection, reducing the manual operation steps and improving the molding efficiency of the three-way pipe. Repeating the above operations can continuously perform injection molding on the three-way pipe.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid prototyping device for a three-way pneumatic prototyping machine, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a bracket (2), a clamping mechanism (3) is installed on the bracket (2), a straight tube shaping mechanism (5) is arranged below the clamping mechanism (3), an upper mold (4) is installed below the straight tube shaping mechanism (5), the upper surface of the base (1) is fixedly connected to a lower mold (6), a right-angle tube shaping mechanism (7) is arranged on the upper surface of the base (1), the right-angle tube shaping mechanism (7) and the straight tube shaping mechanism (5) are arranged vertically in an offset manner, a blanking mechanism (9) is fixedly connected to one side of the base (1), and cooling mechanisms (8) are arranged inside the upper mold (4) and the lower mold (6).

2. The rapid prototyping device of the split three-way pneumatic prototyping machine according to claim 1, characterized in that: The cooling mechanism (8) comprises two groups of water inlet pipes (81), a connecting pipe (83) and a water outlet pipe (82); the connecting pipe (83) is connected to a plurality of groups of first curved pipes (84); the plurality of groups of first curved pipes (84) are respectively connected to the two groups of water inlet pipes (81) and the water outlet pipe (82); a second curved pipe (85) is connected between the two groups of water inlet pipes (81).

3. The rapid prototyping device of the split three-way pneumatic prototyping machine according to claim 2, characterized in that: The material discharge mechanism (9) comprises a side plate (91), a symmetrically arranged first hinge seat (92) and a material discharge hopper (95); a receiving groove for rotatably connecting the material discharge hopper (95) is provided in the middle of one side of the side plate (91); two groups of the first hinge seats (92) are fixedly connected to one side of the side plate (91); a third cylinder (93) is rotatably connected inside the first hinge seat (92); a telescopic end of the third cylinder (93) is rotatably connected to a second hinge seat (94); and two groups of the second hinge seats (94) are rotatably connected to both sides of the material discharge hopper (95), respectively.

4. The rapid prototyping device of the split three-way pneumatic prototyping machine according to claim 3, characterized in that: The lower surface of the upper mold (4) is provided with a plurality of docking holes (41), the upper surface of the lower mold (6) is fixedly connected with a docking block (61) plugged into the plurality of docking holes (41), and the upper surface of the upper mold (4) is provided with an injection tube (42) connected to the mold cavity.

5. The rapid prototyping device of the split three-way pneumatic prototyping machine according to claim 4, characterized in that: The mold clamping mechanism (3) comprises a first cylinder (31) mounted on the upper surface of a bracket (2) and a plurality of groups of limiting rods (32) penetrating the bracket (2); the telescopic end of the first cylinder (31) penetrates the bracket (2) and is fixedly connected to a connecting frame (33); the lower ends of the plurality of groups of limiting rods (32) are fixedly connected to the upper surface of the connecting frame (33).

6. The rapid prototyping device for a three-way pneumatic prototyping machine according to claim 5, characterized in that: The straight tube shaping mechanism (5) comprises two groups of fixing plates (51), two groups of screw rods (52) are rotatably connected between the two groups of fixing plates (51), one end of the two groups of screw rods (52) passes through the fixing plate (51) and is fixedly connected to a gear (54), the opposite ends of the two groups of screw rods (52) are threadedly connected to a connecting plate (55), the opposite sides of the two groups of connecting plates (55) are provided with a first connecting piece (57), and the connecting plate (55) is detachably connected to a straight tube shaping column (56) via the first connecting piece (57).

7. The rapid prototyping device of the split three-way pneumatic prototyping machine according to claim 6, characterized in that: The connecting frame (33) is provided with a rectangular groove for sliding connection of two groups of connecting plates (55), and the connecting plates (55) are slidably connected to the upper surface of the upper mold (4). One end of one group of the screw rods (52) away from the gear (54) is driven by a motor (53), one end of one group of the straight tube shaping columns (56) is fixedly connected with a protrusion (58), and one end of the other group of the straight tube shaping columns (56) is provided with a groove (59) for plugging the protrusion (58).

8. The rapid prototyping device for a three-way pneumatic prototyping machine according to claim 7, characterized in that: The right-angle tube shaping mechanism (7) comprises a second cylinder (71) and an angle plate (72), wherein the second cylinder (71) is arranged on the lower surface of the base (1), and the upper surface of the base (1) is provided with a bottom groove for sliding connection of the angle plate (72), and a second connecting piece (73) is arranged on the upper end of one side of the angle plate (72), and the angle plate (72) is detachably connected to the right-angle tube shaping column (74) via the second connecting piece (73).

9. The rapid prototyping device for a three-way pneumatic prototyping machine according to claim 8, characterized in that: The lower surface of the upper mold (4) and the upper surface of the lower mold (6) are both provided with a three-way pipe injection cavity, and the first curved pipe (84) and the second curved pipe (85) are both arranged in the shape of a quarter of a circle.

10. The rapid prototyping device of the split three-way pneumatic prototyping machine according to claim 8, characterized in that: The connecting plate (55) is arranged in an L shape, and the axis of the straight tube shaping column (56) and the axis of the three-way tube injection cavity of the upper mold (4) are arranged on the same straight line.

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