Rapid demolding device and process for guide wheel compression molding

Abstract

The invention belongs to the technical field of guide wheel casting, and relates to a rapid demolding device and process for guide wheel compression molding, the rapid demolding device comprises a base, two first molds and two second molds, the two first molds and the two second molds are arranged on the base in a relative sliding mode, the sliding direction of the second molds is perpendicular to the sliding direction of the first molds, and the first molds and the second molds are matched to form a casting space; two supporting frames are arranged on the base in a sliding mode, mold cores located in the casting space are arranged on the supporting frames, the two mold cores movably penetrate through the two second molds respectively, and the two supporting frames are driven by two sets of air cylinders installed on the two sides of the base respectively to move. The mold core is pulled away, then the first mold is directly separated from the curved surface of the guide wheel in the radial direction of the guide wheel, and the second mold is directly separated from the end face of the guide wheel in the axial direction of the guide wheel, so that multidirectional symmetrical demolding is achieved, frictional resistance is reduced, and demolding efficiency and effect are improved; and finally, the guide wheel is loosened by the mold II clamping the end face, so that the step of demolding and falling is better completed, and the guide wheel cannot be clamped by the friction of the mold II.

Description

Technical Field

[0001] The invention belongs to the technical field of guide wheel casting, and in particular relates to a rapid demoulding device and process for guide wheel compression molding. Background Art

[0002] Guide wheels are common components in mechanical equipment and are widely used in various transmission systems, conveying systems and automation equipment. Guide wheels are usually manufactured using mold casting technology. Especially for guide wheels that require high precision and complex shapes, casting is an efficient and economical production method. However, in the traditional guide wheel casting process, the demoulding link often becomes a bottleneck in production efficiency.

[0003] For example, the patent with patent announcement number CN117282925B discloses a quick demolding mold for guide wheel processing, in which the upper mold is installed on the lower mold through a connecting piece. When demolding, the upper mold needs to be manually removed from the lower mold, and then the guide wheel is demolded by spraying air pressure, and then the demolded guide wheel is removed from the lower mold. The actual demolding steps are cumbersome and the degree of automation is low.

[0004] In view of the shortcomings of the above-mentioned prior art, a rapid demolding device and process for guide wheel compression molding with a high degree of automation is designed to overcome the shortcomings of the prior art, which can demold symmetrically from multiple directions, reduce friction resistance, improve demolding efficiency and effect, and does not require manual opening and closing and removal of the guide wheel. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and to provide a rapid demolding device and process for guide wheel compression molding that can demold symmetrically from multiple directions, reduce friction resistance, improve demolding efficiency and effect, and has a high degree of automation.

[0006] In order to solve the above technical problems, the present invention provides a quick demoulding device for guide wheel compression molding, comprising a base, two front-to-back opposite molds 1 and two left-to-right opposite molds 2 on the base that are relatively slidable, the sliding direction of the mold 2 is perpendicular to the sliding direction of the mold 1, the two molds 1 and the two molds 2 cooperate to form a casting space for casting the guide wheel, the inner side of the mold 1 is adapted to the curved surface of the guide wheel, the inner side of the mold 2 is adapted to the end surface of the guide wheel, two left-to-right opposite support frames are slidable on the base, a core located in the casting space is provided on the support frame, the outer side of the core is adapted to the center hole of the guide wheel, the cores on the left and right support frames are respectively movable and penetrate the left and right molds 2, and are respectively provided with two sets of air bags installed on the left and right sides of the base. The cylinders drive the left and right support frames to move respectively. Each group of cylinders includes two cylinders that are opposite to each other front and back and whose piston ends are connected to the support frames on the same side. The left cylinder is controlled to contract to drive the left support frame to move leftward. The two molds are connected to a resistance shaft, and the two support frames are connected to a transmission frame. The two transmission frames are tilted around the two resistance shafts respectively. The two molds are connected to an L-shaped resistance plate on the side away from each other. The support frame is suitable for contacting and cooperating with the resistance plate. The left and right sides of the base are provided with two elastic telescopic locks that are opposite to each other front and back. The elastic telescopic locks on both sides of the base are respectively plugged and matched with the two molds. A trigger control plate connected to the elastic telescopic lock is slid on the base, and a resistance rod suitable for contacting and cooperating with the trigger control plate is connected to the support frame.

[0007] Preferably, the elastic telescopic lock includes a slider slidably arranged on the base, the slider is used to be plugged into and cooperate with mold two, the slider is connected to the trigger control plate, a spring surrounding the slider is connected between the slider and the base, the spring is used to provide force for the slider to be plugged into mold two, and a slot suitable for inserting the slider is opened on mold two.

[0008] Preferably, the trigger control plate includes a wedge block slidably arranged on the base, the wedge block has a plane side perpendicular to the interference rod and an inclined side facing the interference rod, and a connecting plate is connected between the wedge block and the slider.

[0009] Preferably, a rotation drive group is also included. The core is rotatably arranged on a support frame. The two support frames are each provided with a rotation drive group. The two rotation drive groups are respectively used to drive the two cores.

[0010] Preferably, the rotary drive group includes a rotating shaft rotatably arranged on a support frame, the rotating shaft is perpendicular to the core, the rotating shaft and the core are both connected to bevel gears, the bevel gear on the rotating shaft is meshed with the bevel gear on the core, the end of the rotating shaft is connected to a spur gear, and one side of the base is connected to a rack meshing with the spur gear.

[0011] Preferably, in the two rotation drive groups, the two racks on the base are rotationally symmetrically arranged with the base as the center, and the two rotating shafts are rotationally symmetrically arranged with the base as the center.

[0012] Preferably, the support frame includes a sliding member slidably arranged on a base and a support plate for supporting the core for rotation, ear plates are connected to the front and rear sides of the support plate, the sliding member is connected to one of the ear plates, the rotating shaft is rotatably arranged on the other ear plate, the resistance rod is connected to the support plate, and the piston of the cylinder and the transmission frame are connected to the sliding member.

[0013] Preferably, the transmission frame is provided with a short slot perpendicular to the sliding direction of the support frame, and the transmission frame is also provided with a long slot obliquely connected to the short slot, and the abutment shaft is slidably arranged between the short slot and the long slot.

[0014] The present invention also provides a demoulding process according to the above-mentioned rapid demoulding device for guide wheel compression molding, comprising: S1) During demoulding, the two cores are first driven away from each other by the two support frames to be pulled out from the guide wheel in the casting space. At this time, mold 1 and mold 2 still limit the guide wheel, thereby improving the demoulding effect of the guide wheel core; S2) The support frame will also drive the transmission frame to move. The two transmission frames will squeeze the two abutting shafts away from each other to drive the two molds 1 to move away from each other to achieve synchronous automatic demoulding. The mold 2 can achieve a more stable limit on the guide wheel under the insertion of the elastic telescopic lock buckle; S3) until the core and mold 1 are demoulded, the support frame continues to move to drive the resistance rod to squeeze the trigger control plate, and the resistance rod drives the elastic telescopic lock to release mold 2, and the guide wheel after demoulding then falls, thereby completing a quick demoulding operation with good demoulding effect.

[0015] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects: 1. The core is first pulled out, and then mold 1 moves away from each other in the radial direction of the guide wheel and directly detaches from the curved surface of the guide wheel. Mold 2 moves in the axial direction of the guide wheel and directly detaches from the end face of the guide wheel, thereby achieving multi-directional symmetrical demoulding, reducing friction resistance, and improving demoulding efficiency and effect. The guide wheel is finally released by mold 2 that clamps the end face, so as to better complete the demoulding and falling steps without being stuck by the friction of mold 2.

[0016] 2. When the two support frames drive the two cores away from each other for demoulding, the cores rotate automatically and synchronously under the meshing action of the spur gear and the rack, thereby facilitating efficient demoulding of the cores and avoiding the trouble caused by demoulding due to the temperature difference and pressure difference between the inside and the outside during casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an assembly schematic diagram of the present invention.

[0018] Figure 2 It is a top view of the present invention.

[0019] Figure 3It is a cross-sectional view of mold 1 and mold 2 of the present invention.

[0020] Figure 4 It is a schematic diagram of the elastic lock buckle and the trigger control panel of the present invention.

[0021] Figure 5 It is a schematic diagram of the mold 1, the interference shaft and the transmission frame of the present invention.

[0022] Figure 6 It is a schematic diagram of the sliding member, the supporting plate and the ear plate of the present invention.

[0023] Figure 7 It is a top view of the transmission frame of the present invention.

[0024] Figure 8 It is a schematic diagram of the demoulding state of the core and mold 1 of the present invention.

[0025] Fig. 9 It is a schematic diagram of the demoulding state of the core, mold 1 and mold 2 of the present invention.

[0026] Fig.10 Schematic diagram of the guide wheel after casting.

[0027] The marks in the accompanying drawings provided by the present invention are: 1-base, 2-support frame, 20-cylinder, 21-sliding member, 22-support plate, 23-ear plate, 24-rotating shaft, 25-bevel gear, 26-spur gear, 27-rack, 3-core, 4-mold one, 41-contact shaft, 5-mold two, 50-slot, 51-contact plate, 61-elastic telescopic lock, 611-slider, 612-spring, 62-trigger control plate, 621-wedge block, 622-connecting plate, 63-contact rod, 7-transmission frame, 71-short slot, 72-long slot. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. It should be noted that the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] A quick demoulding device for guide wheel compression molding, such as Figure 1 , Figure 2 , Figure 3 , Figure 8 , Fig. 9 and Fig.10 As shown, it includes a base 1, two front and rear opposite molds 1 4 and two left and right opposite molds 2 5 on the base 1 which are relatively slidable, the sliding direction of the mold 2 5 is perpendicular to the sliding direction of the mold 1 4, and the mold 2 5 is provided with a sand entry hole, the two molds 1 4 and the two molds 2 5 cooperate to form a casting space for casting a guide wheel, the inner side of the mold 1 4 is adapted to the curved surface of the guide wheel, and the inner side of the mold 2 5 is adapted to the end surface of the guide wheel, and two left and right opposite support frames 2 are slidable on the base 1, and the support frame 2 is provided with a core 3 located in the casting space, and the outer side of the core 3 is adapted to the central hole of the guide wheel, and the cores 3 on the left and right support frames 2 are respectively movable and penetrate the left and right molds 2 5, and when demoulding, the two cores 3 are first driven away from each other by the two support frames 2 to be pulled out from the guide wheel in the casting space, and at this time, the mold 1 4 and the mold 2 5 still limit the guide wheel, thereby improving the demoulding effect of the core of the guide wheel, and then the front and rear molds 1 4 are moved away from each other in the radial direction of the guide wheel to directly break away from the curved surface of the guide wheel, and then the two molds 2 5 directly disengages from the end face of the guide wheel by moving in the axial direction of the guide wheel, thereby demoulding symmetrically in all directions, reducing friction resistance and improving demoulding efficiency and effect. Two groups of cylinders 20 respectively installed on the left and right sides of the base 1 drive the left and right support frames 2 to move. Each group of cylinders 20 includes two cylinders 20 that are opposite to each other and whose piston ends are connected to the support frame 2 on the same side. The left cylinder 20 is controlled to contract to drive the left support frame 2 to move leftward, and the right cylinder 20 is controlled to contract to drive the right support frame 2 to move rightward. In this way, the two support frames 2 will drive the two cores 3 away from each other, and vice versa, when the cylinder 20 is extended, the two cores 3 are close to each other; the two molds 4 are connected with a conflict shaft 41, and the two support frames 2 are connected with a transmission frame 7, and the two transmission frames 7 are respectively inclined around the two conflict shafts 41. When the support frame 2 drives the core 3 to be demoulded, the support frame 2 will also drive the transmission frame 7 to move, and the two transmission frames 7 will squeeze the two conflict shafts 41 away from each other to drive the two molds 4 away from each other to achieve synchronous automatic demoulding (such as Figure 8 ), the two sides of the two molds 2 5 that are away from each other are connected with an L-shaped contact plate 51, and the support frame 2 is suitable for contacting and cooperating with the contact plate 51. During demoulding, when the two support frames 2 drive the two cores 3 to move away from each other, the support frame 2 does not contact the contact plate 51 at this time, so as to utilize the limit of the mold 2 5 to ensure the demoulding effect of the core 3, until the core 3 and the mold 1 4 are demoulded for a distance, the support frame 2 continues to move and squeezes the contact plate 51. At this time, the support frame 2 drives the core 3 to move and also drives the mold 2 5 to move through the contact plate 51, so that the two molds 2 5 automatically move away from each other for demoulding (such as Fig. 9), two elastic telescopic lock buckles 61 facing each other front and back are provided on the left and right sides of the base 1, and the elastic telescopic lock buckles 61 on both sides of the base 1 are respectively plugged and matched with the two molds 2 5. When the core 3 and the mold 1 4 are demoulded, the mold 2 5 can achieve a more stable limit on the guide wheel under the plugging of the elastic telescopic lock buckle 61. In this way, when the support frame 2 drives the core 3 to move and demould, it can avoid that the mold 2 5 follows the movement due to friction and affects the demoulding operation. A trigger control plate 62 connected to the elastic telescopic lock buckle 61 is slidably provided on the base 1, and a resistance rod 63 suitable for contacting and matching with the trigger control plate 62 is connected to the support frame 2 until the core 3 and the mold 1 4 are demoulded. The support frame 2 continues to move to drive the resistance rod 63 to squeeze the trigger control plate 62, and the resistance rod 63 drives the elastic telescopic lock buckle 61 to release the mold 2 5, and the guide wheel after demoulding falls down, thereby completing a quick demoulding operation with good demoulding effect.

[0031] like Figure 3 and Figure 4 As shown, the elastic telescopic lock buckle 61 includes a slider 611 slidably arranged on the base 1, the slider 611 is used to be plugged with the mold 2 5, the slider 611 is connected to the trigger control plate 62, and when the resistance rod 63 squeezes the trigger control plate 62, the trigger control plate 62 will drive the slider 611 to move away from the mold 2 5 to release the mold 2 5. A spring 612 surrounding the slider 611 is connected between the slider 611 and the base 1, and the spring 612 is used to provide a force for the slider 611 to be plugged into the mold 2 5. The mold 2 5 is provided with a slot 50 suitable for inserting the slider 611. When demolding, the resistance rod 63 will squeeze the trigger control plate 62 to drive the slider 611 to be pulled out of the slot 50, and the spring 612 will deform. When the two support frames 2 drive the two cores 3 to approach each other and reset, the support frames 2 will also drive the resistance rod 63 to continue to squeeze the trigger control plate 62, and the two support frames 2 will push the two molds 2 5 to approach each other and reset. At this time, the mold 2 5 will block the slider 611, and the continued movement of the support frame 2 will drive the resistance rod 63 to release the trigger control plate 62 until the mold 2 5 is reset. Under the action of the reset of the spring 612, the slider 611 will be reinserted into the slot 50 of the mold 2 5 to achieve automatic positioning.

[0032] like Figure 3 and Figure 4As shown, the trigger control plate 62 includes a wedge block 621 slidably arranged on the base 1, the wedge block 621 has a plane side perpendicular to the resistance rod 63 and an inclined side facing the resistance rod 63, a connecting plate 622 is connected between the wedge block 621 and the slider 611, when the core 3 and the mold 1 4 are demoulded, the support frame 2 continues to move to drive the resistance rod 63 to squeeze the inclined side of the wedge block 621, and the resistance rod 63 will gradually move to the plane side of the wedge block 621, at this time the slider 611 releases the slot 50, the support frame 2 can drive the mold 2 5 to move and demould through the resistance plate 51, and then after the mold 2 5 is reset to block the slider 611, the support frame 2 drives the resistance rod 63 to move away from the plane side and the inclined side of the wedge block 621 in turn to release the wedge block 621, and under the action of the spring 612, the slider 611 is reset to clamp the slot 50.

[0033] like Figure 1 As shown, a rotary drive group is also included. The core 3 is rotatably arranged on the support frame 2. The two support frames 2 are each provided with a rotary drive group. The two rotary drive groups are respectively used to drive the two cores 3. When the two support frames 2 drive the two cores 3 away from each other for demoulding, the rotary drive group drives the core 3 to rotate, thereby facilitating efficient demoulding of the core 3 and avoiding the trouble caused by demoulding due to the temperature difference and pressure difference between the inside and the outside during casting.

[0034] like Figure 2 , Figure 5 and Figure 6 As shown, the rotary drive group includes a rotating shaft 24 rotatably arranged on the support frame 2, the rotating shaft 24 is perpendicular to the core 3, and the rotating shaft 24 and the core 3 are both connected with a bevel gear 25, the bevel gear 25 on the rotating shaft 24 is meshed with the bevel gear 25 on the core 3, and under the meshing action of the bevel gear 25, the rotation of the rotating shaft 24 will drive the core 3 to rotate, and the end of the rotating shaft 24 is connected to a spur gear 26, and one side of the base 1 is connected to a rack 27 meshing with the spur gear 26. When the two support frames 2 drive the two cores 3 to move away from each other for demolding, the support frame 2 will also drive the spur gear 26 to move along the rack 27 through the rotating shaft 24, and under the meshing action, the spur gear 26 will also drive the rotating shaft 24 to rotate, and the rotating shaft 24 will drive the core 3 to rotate through the meshing of the bevel gear 25, so that it automatically and synchronously rotates when the core 3 moves for demolding.

[0035] As a preferred embodiment of the present invention, in the two rotating drive groups, the two racks 27 on the base 1 are rotationally symmetrically arranged with the base 1 as the center, and the two rotating shafts 24 are rotationally symmetrically arranged with the base 1 as the center. Therefore, when the two supporting frames 2 drive the cores 3 away from each other for demolding, the two cores 3 can rotate in opposite directions for effective demolding.

[0036] like Figure 5 and Figure 6As shown, the support frame 2 includes a sliding member 21 slidably arranged on the base 1 and a support plate 22 for supporting the core 3 to rotate, and ear plates 23 are connected to the front and rear sides of the support plate 22. The sliding member 21 is connected to one of the ear plates 23, and the rotating shaft 24 is rotatably arranged on the other ear plate 23. The movement of the sliding member 21 will drive the support plate 22 to move through the ear plate 23. The resistance rod 63 is connected to the support plate 22. During demolding, the two support plates 22 will drive the two resistance rods 63 to move away from each other to extrude the wedge block 621. During resetting, the two support plates 22 will approach each other and push the two molds 25 to approach each other. The piston of the cylinder 20 and the transmission frame 7 are both connected to the sliding member 21. The extension and contraction of the cylinder 20 will drive the sliding member 21 to move and drive the transmission frame 7 to move through the sliding member 21.

[0037] like Figure 7 As shown, the transmission frame 7 is provided with a short groove 71 perpendicular to the sliding direction of the support frame 2, and the transmission frame 7 is also provided with a long groove 72 obliquely connected to the short groove 71, and the interference shaft 41 is slidably arranged between the short groove 71 and the long groove 72. When the two support frames 2 drive the two cores 3 to move away from each other for demolding, the support frame 2 will drive the transmission frame 7 to move. At this time, the short groove 71 on the transmission frame 7 will not squeeze the interference shaft 41 to move. Therefore, when the core 3 rotates and moves for demolding, the mold 1 4 is first kept to limit the curved surface of the guide wheel, and the transmission frame 7 continues to move and then squeezes the interference shaft 41 through the long groove 72, so that the two interference shafts 41 drive the two molds 1 4 to move away from each other to start demolding, and then the support frame 2 moves and squeezes the interference plate 51 to drive the mold 2 5 to move for demolding, so that the sequential demolding operations of the core 3, mold 1 4 and mold 2 5 are interconnected and coordinated with each other only by controlling the cylinder 20.

[0038] A demoulding process according to the above-mentioned rapid demoulding device for guide wheel compression molding comprises: S1) During demoulding, the two cores 3 are first driven away from each other by the two support frames 2 to be pulled out from the guide wheel in the casting space. At this time, the mold 1 4 and the mold 2 5 still limit the guide wheel, thereby improving the demoulding effect of the guide wheel core; S2) The support frame 2 will also drive the transmission frame 7 to move, and the two transmission frames 7 will squeeze the two abutting shafts 41 away from each other to drive the two molds 1 4 away from each other to achieve synchronous automatic demoulding, and the mold 2 5 can achieve a more stable limit on the guide wheel under the insertion of the elastic telescopic lock buckle 61; S3) until the core 3 and the mold 1 4 are demoulded, the support frame 2 continues to move to drive the resistance rod 63 to squeeze the trigger control plate 62, and the resistance rod 63 drives the elastic telescopic lock buckle 61 to release the mold 2 5, and the guide wheel after demoulding falls down, thereby completing a quick demoulding operation with a good demoulding effect.

[0039] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. They only express the preferred implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention.

[0040] It should be pointed out that, for ordinary technicians in this field, several modifications, increases and decreases in quantity, improvements and substitutions can be made without departing from the concept of the present invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

Claims

1. A rapid demoulding device for guide wheel compression molding, characterized in that: The invention comprises a base (1), two molds 1 (4) and two molds 2 (5) which are relatively slidably arranged on the base (1), wherein the sliding direction of the mold 2 (5) is perpendicular to the sliding direction of the mold 1 (4), and the mold 1 (4) and the mold 2 (5) cooperate to form a casting space, two support frames (2) are slidably arranged on the base (1), and the support frames (2) are provided with cores (3) located in the casting space, and the two cores (3) are respectively movable and penetrate the two molds 2 (5), and the two support frames (2) are respectively driven to move by two groups of cylinders (20) respectively installed on both sides of the base (1); the mold 1 (4) is connected with a resistance shaft (41 ), the support frame (2) is connected to a transmission frame (7), the two transmission frames (7) are respectively inclined around the two abutment shafts (41), one side of the mold (5) is connected to an L-shaped abutment plate (51), the support frame (2) is suitable for contacting and cooperating with the abutment plate (51), both sides of the base (1) are provided with elastic telescopic lock buckles (61), the elastic telescopic lock buckles (61) on both sides of the base (1) are respectively plugged and cooperating with the two molds (5), a trigger control plate (62) connected to the elastic telescopic lock buckles (61) is slidably provided on the base (1), and a abutment rod (63) suitable for contacting and cooperating with the trigger control plate (62) is connected to the support frame (2).

2. A quick demoulding device for guide wheel compression molding according to claim 1, characterized in that: The elastic telescopic lock buckle (61) comprises a slider (611) slidably arranged on the base (1), the slider (611) is used to be plugged into and matched with the second mold (5), the slider (611) is connected to the trigger control plate (62), a spring (612) is connected between the slider (611) and the base (1), and a slot (50) suitable for inserting the slider (611) is opened on the second mold (5).

3. A quick demoulding device for guide wheel compression molding according to claim 2, characterized in that: The trigger control plate (62) comprises a wedge block (621) slidably arranged on the base (1), the wedge block (621) having a plane side perpendicular to the abutment rod (63) and an inclined side facing the abutment rod (63), and a connecting plate (622) is connected between the wedge block (621) and the slider (611).

4. A quick demoulding device for guide wheel compression molding according to claim 1, characterized in that: It also includes a rotation drive group, the core (3) is rotatably arranged on the support frame (2), the two support frames (2) are each provided with the rotation drive group, and the two rotation drive groups are respectively used to drive the two cores (3).

5. A quick demoulding device for guide wheel compression molding according to claim 4, characterized in that: The rotary drive group comprises a rotating shaft (24) rotatably arranged on the support frame (2), the rotating shaft (24) and the core (3) are both connected to a bevel gear (25), the bevel gear (25) on the rotating shaft (24) and the bevel gear (25) on the core (3) are meshed, the end of the rotating shaft (24) is connected to a spur gear (26), and one side of the base (1) is connected to a rack (27) meshing with the spur gear (26).

6. A quick demoulding device for guide wheel compression molding according to claim 5, characterized in that: In the two rotation drive groups, the two racks (27) on the base (1) are rotationally symmetrically arranged with the base (1) as the center, and the two rotating shafts (24) are rotationally symmetrically arranged with the base (1) as the center.

7. A quick demoulding device for guide wheel compression molding according to claim 5, characterized in that: The support frame (2) comprises a sliding member (21) slidably arranged on the base (1) and a support plate (22) for supporting the core (3) for rotation. Both sides of the support plate (22) are connected with ear plates (23). The sliding member (21) is connected to one of the ear plates (23). The rotating shaft (24) is rotatably arranged on the other ear plate (23). The abutment rod (63) is connected to the support plate (22). The piston of the cylinder (20) and the transmission frame (7) are both connected to the sliding member (21).

8. A quick demoulding device for guide wheel compression molding according to claim 5, characterized in that: The transmission frame (7) is provided with a short slot (71) perpendicular to the sliding direction of the support frame (2), and the transmission frame (7) is also provided with a long slot (72) obliquely connected to the short slot (71), and the abutment shaft (41) is slidably arranged between the short slot (71) and the long slot (72).

9. A demoulding process of the rapid demoulding device for guide wheel compression molding according to claim 1, characterized in that: Included are: S1) When demoulding, the two cores (3) are first driven away from each other by the two support frames (2) to be withdrawn from the guide wheels in the casting space, and at this time, the guide wheels of mold 1 (4) and mold 2 (5) are still limited; S2) The support frame (2) also drives the transmission frame (7) to move, and the two transmission frames (7) squeeze the two abutting shafts (41) away from each other to drive the two molds (4) away from each other to achieve demoulding, and the mold (5) limits the guide wheel under the insertion of the elastic telescopic lock buckle (61); S3) until the core (3) and the mold one (4) are demoulded, the support frame (2) continues to move to drive the resistance rod (63) to squeeze the trigger control plate (62), and the resistance rod (63) drives the elastic telescopic lock (61) to release the mold two (5), and the guide wheel falls after demoulding.

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