A rapid demoulding device and process for the die pressing forming of a guide wheel

Abstract

The present invention belongs to the technical field of guide wheel casting, and relates to a rapid demolding device and process for die pressing and forming of a guide wheel, including a base, two die sets I and two die sets II that are relatively slidably arranged on the base, the sliding direction of the die set II is perpendicular to the sliding direction of the die set I, the die set I and the die set II cooperate to form a casting space, two support frames are slidably arranged on the base, a core is arranged on the support frame and located in the casting space, the two cores respectively pass through the two die sets II movably, and the two support frames are driven to move by two groups of air cylinders respectively installed on both sides of the base. The cores are withdrawn, and then the die sets I move away from each other in the radial direction of the guide wheel to directly separate from the curved surface of the guide wheel, and the die sets II move in the axial direction of the guide wheel to directly separate from the end face of the guide wheel, so as to achieve multi-directional symmetric demolding, reduce the frictional resistance, and improve the demolding efficiency and effect; finally, the guide wheel is released by the die set II that holds the end face, and the demolding and dropping steps are better completed without being stuck by the friction of the die set II.

Description

Technical Field

[0001] The present invention belongs to the technical field of guide wheel casting. Specifically, it relates to a rapid demolding device and process for guide wheel molding by die pressing. Background Art

[0002] Guide wheels are common components in mechanical equipment and are widely used in various transmission systems, conveying systems, and automation equipment. The manufacturing of guide wheels usually adopts die 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 demolding link often becomes the bottleneck of production efficiency.

[0003] For example, the patent with the patent publication number CN117282925B discloses a rapid demolding die for guide wheel processing. In this rapid demolding die for guide wheel processing, the upper die is installed on the lower die through a connecting piece. During demolding, it is necessary to manually remove the upper die from the lower die first, then use air pressure to spray the release agent on the guide wheel, and then remove the demolded guide wheel from the lower die. The actual demolding steps are cumbersome and the degree of automation is low.

[0004] Based on the above-mentioned disadvantages existing in the prior art, a rapid demolding device and process for guide wheel molding by die pressing are specially designed, which can overcome the disadvantages of the prior art, demold symmetrically from multiple directions, reduce the frictional resistance, improve the demolding efficiency and effect, and do not require manual opening and closing and removal of the guide wheel, with a high degree of automation. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a rapid demolding device and process for guide wheel molding by die pressing, which can demold symmetrically from multiple directions, reduce the frictional resistance, improve the demolding efficiency and effect, and have 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 that are relatively slidably arranged on the base, 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 slidably arranged on the base, a core located in the casting space is arranged 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 of a quick demoulding device for guide wheel compression molding, which uses the quick demoulding device for guide wheel compression molding, and comprises:

[0015] Step S1: When demolding, the two cores are first driven away from each other by two support frames to be pulled out from the guide wheel in the casting space. At this time, the guide wheel is still limited by the mold 1 and the mold 2, thereby improving the demolding effect of the core of the guide wheel;

[0016] Step S2: The support frame will also drive the transmission frame to move, and 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, and the mold 2 can achieve a more stable limit on the guide wheel under the insertion of the elastic telescopic lock buckle;

[0017] Step S3: until the core and mold 1 are demolded, 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 demolding then falls, thereby completing a quick demolding operation with good demolding effect.

[0018] The present invention overcomes the shortcomings of the prior art and can achieve the following beneficial effects:

[0019] 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.

[0020] 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

[0021] Figure 1 It is an assembly schematic diagram of the present invention.

[0022] Figure 2 It is a top view of the present invention.

[0023] Figure 3 It is a cross-sectional view of mold 1 and mold 2 of the present invention.

[0024] Figure 4 It is a schematic diagram of the elastic lock buckle and the trigger control panel of the present invention.

[0025] Figure 5 It is a schematic diagram of the mold 1, the interference shaft and the transmission frame of the present invention.

[0026] Figure 6 It is a schematic diagram of the sliding member, the supporting plate and the ear plate of the present invention.

[0027] Figure 7 It is a top view of the transmission frame of the present invention.

[0028] Figure 8 It is a schematic diagram of the demoulding state of the core and mold 1 of the present invention.

[0029] Figure 9 It is a schematic diagram of the demoulding state of the core, mold 1 and mold 2 of the present invention.

[0030] Figure 10 Schematic diagram of the guide wheel after casting.

[0031] 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

[0032] 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.

[0033] In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance. The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. It should be noted that the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] A rapid demolding device for die pressing of a guide wheel, as Figure 1 , Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10 shown, includes a base 1, two front and rear opposite die sets 4 slidably arranged on the base 1, and two left and right opposite die sets 5. The sliding direction of the die set 5 is perpendicular to the sliding direction of the die set 4. The die set 5 is provided with a sand inlet hole. A casting space for casting the guide wheel is formed by the cooperation between the two die sets 4 and the two die sets 5. The inner side of the die set 4 is adapted to the curved surface of the guide wheel, and the inner side of the die set 5 is adapted to the end face of the guide wheel. Two left and right opposite support frames 2 are slidably arranged on the base 1. A core 3 located in the casting space is provided on the support frame 2. The outer side of the core 3 is adapted to the central hole of the guide wheel. The cores 3 on the left and right support frames 2 respectively pass through the left and right die sets 5 movably. During demolding, first, the two support frames 2 drive the two cores 3 to move away from each other to withdraw from the guide wheel in the casting space. At this time, the die sets 4 and the die sets 5 still limit the guide wheel, thereby improving the demolding effect of the core part of the guide wheel. Then, the front and rear two die sets 4 move away from each other in the radial direction of the guide wheel to directly separate from the curved surface of the guide wheel. Then, the two die sets 5 move in the axial direction of the guide wheel to directly separate from the end face of the guide wheel, thereby achieving multi-directional symmetric demolding, reducing the frictional resistance, and improving the demolding efficiency and effect. The left and right support frames 2 are respectively driven to move by two groups of cylinders 20 respectively installed on the left and right sides of the base 1. Each group of cylinders 20 includes two front and rear opposite cylinders 20 with piston ends connected to the support frame 2 on the same side. Controlling the contraction of the left cylinder 20 drives the left support frame 2 to move leftward, and controlling the contraction of the right cylinder 20 drives the right support frame 2 to move rightward. In this way, the two support frames 2 will drive the two cores 3 to move away from each other. Conversely, when the cylinders 20 extend, the two cores 3 will move closer to each other; A contact shaft 41 is connected to each of the two die sets 4, and a transmission frame 7 is connected to each of the two support frames 2. The two transmission frames 7 respectively surround the two contact shafts 41 obliquely. When the support frame 2 drives the core 3 to demold, the support frame 2 will also drive the transmission frame 7 to move. The two transmission frames 7 will squeeze the two contact shafts 41 to move away from each other to drive the two die sets 4 to move away from each other to achieve synchronous automatic demolding (as Figure 8), on one side of the two molds two 5 away from each other, there are L-shaped contact plates 51 connected. The support frame 2 is adapted to be in contact and cooperation with the contact plate 51. During demolding, when the two support frames 2 drive the two core molds 3 away from each other, at this time the support frame 2 does not contact the contact plate 51. Thus, the limit of the mold two 5 is used to ensure the demolding effect of the core mold 3. Until the core mold 3 and the mold one 4 are demolded for a certain distance, when the support frame 2 continues to move, it will squeeze the contact plate 51. At this time, when the support frame 2 drives the core mold 3 to move, it will also drive the mold two 5 to move through the contact plate 51, so that the two molds two 5 will automatically move away from each other for demolding (such as Figure 9 ), on both the left and right sides of the base 1, there are two elastic telescopic locking latches 61 opposite to each other front and back. The elastic telescopic locking latches 61 on both sides of the base 1 are respectively inserted and cooperated with the two molds two 5. When the core mold 3 and the mold one 4 are demolded, the mold two 5 plays a more stable role in limiting the guide wheel under the insertion of the elastic telescopic locking latch 61. Thus, when the support frame 2 drives the core mold 3 to move for demolding, it can avoid the mold two 5 following the movement due to friction, which affects the demolding operation. A trigger control plate 62 connecting the elastic telescopic locking latch 61 slides on the base 1. A contact rod 63 adapted to be in contact and cooperation with the trigger control plate 62 is connected to the support frame 2. Until the core mold 3 and the mold one 4 are demolded, when the support frame 2 continues to move, it will drive the contact rod 63 to squeeze the trigger control plate 62. The contact rod 63 will drive the elastic telescopic locking latch 61 to release the mold two 5. The demolded guide wheel will then fall off, thus completing the fast demolding operation with good demolding effect.

[0035] Such as Figure 3 and Figure 4 shown, the elastic telescopic locking latch 61 includes a slider 611 slidably arranged on the base 1. The slider 611 is used for inserting and cooperating with the mold two 5. The slider 611 is connected to the trigger control plate 62. When the contact rod 63 squeezes the trigger control plate 62, the trigger control plate 62 will drive the slider 611 to move away from the mold two 5 to release the mold two 5. A spring 612 surrounding the slider 611 is connected between the slider 611 and the base 1. The spring 612 is used to provide the force for the slider 611 to be inserted into the mold two 5. A card slot 50 adapted for the slider 611 to be inserted is opened on the mold two 5. During demolding, the contact rod 63 will squeeze the trigger control plate 62 to drive the slider 611 to be withdrawn from the card slot 50, and the spring 612 deforms. And when the two support frames 2 drive the two core molds 3 to approach and reset, the support frame 2 will also drive the contact rod 63 to continue to squeeze the trigger control plate 62, and the two support frames 2 will push the two molds two 5 to approach and reset. At this time, the mold two 5 will block the slider 611. When the support frame 2 continues to move, it will drive the contact rod 63 to release the trigger control plate 62. Until the mold two 5 is reset, under the action of the spring 612 reset, the slider 611 will re-insert into the card slot 50 of the mold two 5 to achieve automatic positioning.

[0036] Such as Figure 3 and Figure 4As shown, the trigger control board 62 includes a wedge block 621 slidably arranged on the base 1. The wedge block 621 has a flat side vertically abutting against the rod 63 and an inclined side facing the rod 63. A connecting plate 622 is connected between the wedge block 621 and the slider 611. When the core 3 and the first mold 4 are demolded, when the support frame 2 continues to move, it will drive the abutting rod 63 to squeeze the inclined side of the wedge block 621, and the abutting rod 63 will gradually move to the flat side of the wedge block 621. At this time, the slider 611 releases the clamping groove 50, and the support frame 2 can drive the second mold 5 to move for demolding through the abutting plate 51. Then, after the second mold 5 is reset to block the slider 611, the support frame 2 drives the abutting rod 63 to move away from and release the wedge block 621 in sequence from the flat side and the inclined side of the wedge block 621. Under the action of the spring 612, the slider 611 is reset to clamp the clamping groove 50 again.

[0037] As Figure 1 shown, it further includes a rotary drive group. The core 3 is rotatably arranged on the support frame 2. Rotary drive groups are arranged on both support frames 2, and 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 to move away from each other for demolding, the rotary drive group drives the core 3 to rotate, so as to facilitate the efficient demolding of the core 3 and avoid the troubles caused by demolding due to the internal and external temperature difference and pressure difference during casting.

[0038] As Figure 2 、 Figure 5 and Figure 6 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. Bevel gears 25 are connected to both the rotating shaft 24 and the core 3. The bevel gear 25 on the rotating shaft 24 meshes with the bevel gear 25 on the core 3. Under the meshing action of the bevel gears 25, the rotation of the rotating shaft 24 will drive the core 3 to rotate. The end of the rotating shaft 24 is connected with a spur gear 26, and a rack 27 meshing with the spur gear 26 is connected to one side of the base 1. 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. 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 gears 25, so that the core 3 rotates automatically and synchronously when moving for demolding.

[0039] Preferably in this embodiment, in the two rotary 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 support frames 2 drive the cores 3 to move away from each other for demolding, the two cores 3 can rotate in opposite directions for effective demolding.

[0040] As 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.

[0041] 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.

[0042] A demoulding process of a quick demoulding device for guide wheel compression molding, using the quick demoulding device for guide wheel compression molding, comprising:

[0043] Step 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 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 core of the guide wheel;

[0044] Step 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;

[0045] Step S3: until the core 3 and the mold 1 4 are demolded, 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 2 5, and the guide wheel after demolding then falls, thereby completing a quick demolding operation with a good demolding effect.

[0046] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. They only express the preferred embodiments of the present invention, and the description is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the patent of the present invention.

[0047] It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, quantity increases or decreases, improvements and substitutions can be made. Therefore, based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to 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. 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); 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); 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); 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; 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, the support plate (22) is connected to ear plates (23) on both sides, 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), and the piston of the cylinder (20) and the transmission frame (7) are both connected to the sliding member (21); 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); During demoulding, when the two support frames (2) drive the two cores (3) away from each other, the support frames (2) do not contact the contact plate (51) until the core (3) and the mold one (4) are demoulded for a certain distance. Then, the support frames (2) continue to move and squeeze the contact plate (51). At this time, the support frames (2) drive the core (3) to move and also drive the mold two (5) to move through the contact plate (51).

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 demoulding process of a quick demoulding device for guide wheel compression molding, using the quick demoulding device for guide wheel compression molding according to claim 1, characterized in that: Included are: Step 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, while the guide wheels of the mold 1 (4) and the mold 2 (5) are still limited; Step 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); Step 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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