A molding machine mold clamping mechanism and mold clamping method thereof

Abstract

The present application discloses a mold clamping mechanism and a mold clamping method for a molding machine, and relates to the technical field of molding machines, including a mold clamping frame, the mold clamping frame is connected with a fixed mold and a slidingly connected with a mobile mold, the mold clamping frame is connected with a first driving member for driving the mobile mold to slide in a direction close to or away from the fixed mold, a side of the mobile mold close to the fixed mold is slidingly connected with a locking column, the mobile mold is connected with a second driving member for driving the locking column to slide in a direction close to or away from the fixed mold, the fixed mold is connected with a locking assembly for fixing the locking column, the mold clamping frame is connected with a positioning assembly, and the positioning assembly is used to abut against the mobile mold. The fixed mold of the present application is subjected to forces in two opposite directions, thereby reducing the force on the connection of the fixed mold, and protecting the connection of the fixed mold.

Description

Technical Field

[0001] The present application relates to the technical field of molding machines, and in particular to a molding machine mold clamping mechanism and a molding clamping method thereof. Background Art

[0002] The mold clamping mechanism is mainly composed of a fixed mold plate, a movable mold plate, a tie rod, a cylinder, a connecting rod, a mold adjustment mechanism, a product ejection mechanism, etc. It is responsible for driving the movable mold part of the die-casting mold to separate or close the mold, and locks the mold during injection filling to prevent the plastic melt from overflowing the mold cavity.

[0003] When the molding machine is molding foam particles, it needs to be filled with high-temperature steam. At this time, the pressure between the fixed mold and the movable mold will be very high, so the hydraulic cylinder needs to drive the movable mold to slide toward the fixed mold. In the long run, the fixed mold is under high pressure, and its connection is prone to damage, which needs to be improved. Summary of the invention

[0004] The purpose of the present application is to provide a molding machine mold clamping mechanism and a mold clamping method thereof, in order to protect the connection of the fixed mold.

[0005] The present application provides a mold clamping mechanism of a molding machine and a mold clamping method thereof, which adopt the following technical scheme: comprising a mold clamping frame, wherein the mold clamping frame is connected to a fixed mold and a movable mold slidably connected to the mold clamping frame, wherein the mold clamping frame is connected to a first driving member for driving the movable mold to slide toward or away from the fixed mold, a locking column is slidably connected to a side of the movable mold close to the fixed mold, the movable mold is connected to a second driving member for driving the locking column to slide toward or away from the fixed mold, the fixed mold is connected to a locking assembly for fixing the locking column, and the mold clamping frame is connected to a positioning assembly, which is used to abut against the movable mold.

[0006] By adopting the above technical solution, the first driving member drives the mobile mold to slide in the direction close to the fixed mold, and the positioning assembly abuts against the mobile mold, so that the mobile mold moves to the corresponding position. The second driving member drives the locking column to move in the direction close to the fixed mold until the locking column moves to the locking assembly, and the locking assembly fixes the locking column on the fixed mold. Foam particles are filled between the mobile mold and the fixed mold, and then high-temperature steam is filled between the mobile mold and the fixed mold. The pressure between the mobile mold and the fixed mold is relatively large, and the mobile mold and the fixed mold have a force to move away from each other. The second driving member drives the locking column to move in the direction close to the fixed mold, so that the mobile mold and the fixed mold have a force to move toward each other. The fixed mold is subjected to forces in two opposite directions, thereby reducing the force on the connection of the fixed mold, and protecting the connection of the fixed mold.

[0007] Optionally, the locking assembly includes a locking plate slidably connected to the side of the fixed mold away from the movable mold and a third driving member for driving the locking plate to slide, the third driving member is connected to the fixed mold, the locking column is provided with an annular groove, the locking column is formed with a convex column, the radius of the convex column is smaller than the radius of the locking column, the locking plate is provided with a through hole for the locking column to pass through and a locking hole for cooperating with the convex column, the through hole is connected to the locking hole, and the radius of the locking hole is smaller than the radius of the through hole.

[0008] By adopting the above technical solution, when the locking assembly is required to fix the locking column on the fixed mold, one end of the locking column passes through the fixed mold and the through hole, and the convex column at this time corresponds to the locking hole, and the locking plate is moved so that the convex column is stuck in the locking hole. The movable mold is pressurized so that the locking column has a force to move toward the fixed mold, the locking column abuts against the locking plate, the locking plate abuts against the fixed mold, the locking column applies force to the locking plate, the locking plate applies force to the fixed mold, and the locking plate and the fixed mold limit the movement of the locking column. When high-temperature steam is filled between the movable mold and the fixed mold, the stability of the movable mold is improved compared to the fixed mold.

[0009] Optionally, a direct abutment ring and an indirect abutment ring are sleeved on one side of the boss away from the locking column, the direct abutment ring is located between the indirect abutment ring and the boss, the direct abutment ring and the indirect abutment ring abut, the locking column is provided with a receiving groove for the indirect abutment ring to be snapped in, the locking column is threadedly connected with a stop block, and the stop block is provided with a stop groove for the indirect abutment ring to be snapped in.

[0010] By adopting the above technical solution, when the direct abutment ring is subjected to force, the direct abutment ring applies force to the indirect abutment ring, and the indirect abutment ring is subjected to force and applies force to the inner wall of the accommodating groove, thereby reducing the force on the stop block and protecting the internal thread of the stop block and the external thread of the third boss.

[0011] Optionally, the locking assembly also includes a baffle connected to the fixed mold, the baffle being provided with two limit plates, a slide groove being formed between the two limit plates, the locking plate slidingly cooperates with the slide groove, the baffle being provided with a clearance hole for the locking column to pass through, and the clearance hole being connected to the slide groove.

[0012] By adopting the above technical solution, the sliding cooperation between the locking plate and the sliding groove plays a guiding and limiting role in the sliding of the locking plate, thereby improving the sliding stability of the locking plate.

[0013] Optionally, the positioning assembly includes a connecting rod slidably connected to the mold clamping frame and a fourth driving member for driving the connecting rod to slide toward or away from the movable mold, the fourth driving member is connected to the mold clamping frame, the output end of the fourth driving member is threadedly connected with a zero-point positioning block, the connecting rod is threadedly connected to the output end of the fourth driving member, the zero-point positioning block is located between the fourth driving member and the connecting rod, and the connecting rod is threadedly connected with a rotating sleeve.

[0014] By adopting the above technical solution, before the first production, it is necessary to perform the zero-position alignment operation. First, fit the mobile mold and the fixed mold together, and rotate the rotating sleeve shell so that the rotating sleeve shell is located at the end of the connecting rod closest to the zero-point positioning block. The fourth driving member drives the output end of the fourth driving member to extend, and the output end of the fourth driving member moves the maximum stroke, and the connecting rod is rotated so that the side of the rotating sleeve shell away from the zero-point positioning block abuts against the mobile mold. At this time, the zero-point positioning block is rotated in the direction close to the rotating sleeve shell, so that the zero-point positioning block abuts against the connecting rod, and the zero-point alignment is completed. When the distance between the mobile mold and the fixed mold needs to be adjusted, the rotating sleeve shell is rotated in the direction away from the zero-point positioning block until the rotating sleeve shell moves to the corresponding position, and the moving distance of the rotating sleeve shell is the spacing between the mobile mold and the fixed mold. When the mobile mold moves in the direction close to the fixed mold, the mobile mold abuts against the rotating sleeve shell, and the rotating sleeve shell limits the movement of the mobile mold, so as to better control the spacing between the mobile mold and the fixed mold.

[0015] Optionally, one end of the connecting rod away from the fourth driving member is detachably connected to a fixing block, the rotating sleeve is located between the zero point positioning block and the fixing block, and the fixing block is used to abut against the rotating sleeve.

[0016] By adopting the above technical solution, when the position of the rotating shell is moved, the fixed block is installed on the connecting rod. The fixed block limits the movement of the rotating shell toward the fixed block, thereby improving the stability of the rotating shell installed on the connecting rod.

[0017] Optionally, the connecting rod is connected to a first scale line, the first scale line is distributed along the length direction of the connecting rod, and the outer peripheral surface of the rotating shell is connected to a second scale line, and the second scale line is distributed around the axis of the rotating shell.

[0018] By adopting the above technical solution, the moving distance of the rotating housing can be observed conveniently through the first scale line and the second scale line, that is, the distance between the movable mold and the fixed mold can be better controlled.

[0019] Optionally, two heat insulation plates are connected to a side of the movable mold close to the fixed mold.

[0020] By adopting the above technical solution, two heat insulation plates are used to shield the gap between the fixed mold and the movable mold, thereby reducing steam escape and improving the product molding effect.

[0021] Optionally, the locking assembly is connected to one side of the fixed mold close to the movable mold or away from the movable mold, the fixed mold is rotatably connected to the mold clamping frame, and the mold clamping frame is connected to a driving assembly for driving the fixed mold to rotate.

[0022] By adopting the above technical solution, when one side of the fixed mold needs to be cooled after processing, the driving component drives the fixed mold to rotate so that the other side of the fixed mold corresponds to the movable mold and continues to work, thereby improving the efficiency of product production.

[0023] Optionally, a mold closing method,

[0024] Step A, zero-position alignment: firstly fit the movable mold and the fixed mold together, rotate the rotating shell so that the rotating shell is located at the end of the connecting rod closest to the zero-point positioning block, rotate the fixed block so that the fixed block abuts against the rotating shell, the fourth driving member drives the output end of the fourth driving member to extend, the output end of the fourth driving member moves the maximum stroke, rotate the connecting rod so that the fixed block abuts against the movable mold at a side away from the rotating shell, and at this time rotate the zero-point positioning block in a direction close to the rotating shell so that the zero-point positioning block abuts against the connecting rod, thereby completing the zero-point alignment;

[0025] Step B, adjusting the distance between the movable mold and the fixed mold: first loosen the fixed block so that the fixed block is separated from the rotating shell, then rotate the rotating shell, and know the moving distance of the rotating shell according to the first scale line and the second scale line. When the rotating shell moves to the corresponding position, rotate the fixed block in the direction close to the rotating shell so that the fixed block abuts against the rotating shell. The moving distance of the rotating shell is the distance between the movable mold and the fixed mold;

[0026] Step C, mold closing: the first driving member drives the movable mold to slide in a direction close to the fixed mold until the movable mold abuts against the fixed block;

[0027] Step D, locking: the second driving member drives the locking column to slide in the direction close to the fixed mold, one end of the locking column passes through the fixed mold and the through hole until the protrusion corresponds to the locking hole, and the third driving member drives the locking plate to move so that the protrusion is stuck in the locking hole. When high-temperature steam is filled between the fixed mold and the movable mold, the second driving member drives the locking column to slide away from the end of the movable mold toward the fixed mold.

[0028] By adopting the above technical solution, foam particles are filled between the movable mold and the fixed mold, and then high-temperature steam is filled between the movable mold and the fixed mold. The pressure between the movable mold and the fixed mold is relatively large, and the movable mold and the fixed mold have a force moving away from each other. The second driving member drives the locking column to move away from the fixed mold, so that the movable mold and the fixed mold have a force moving toward each other. The fixed mold is subjected to forces in two opposite directions, thereby reducing the occurrence of damage to the fixed mold and protecting the fixed mold.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The movable mold and the fixed mold have a force moving in a direction away from each other, and the second driving member drives the locking column to move in a direction close to the fixed mold, so that the movable mold and the fixed mold have a force moving in a direction close to each other, and the fixed mold is subjected to forces in two opposite directions, thereby reducing the force on the connection of the fixed mold and protecting the connection of the fixed mold.

[0031] 2. Before the first production, the zero-position alignment operation is required. First, fit the movable mold and the fixed mold together, and rotate the rotating sleeve so that the rotating sleeve is located at the end of the connecting rod closest to the zero-point positioning block. The fourth drive member drives the output end of the fourth drive member to extend, and the output end of the fourth drive member moves to the maximum stroke, and the connecting rod is rotated so that the side of the rotating sleeve away from the zero-point positioning block abuts against the movable mold. At this time, the zero-point positioning block is rotated in the direction close to the rotating sleeve so that the zero-point positioning block abuts against the connecting rod to complete the zero-point alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is one of the overall structural diagrams of the embodiment of the present application, showing the drive assembly.

[0033] Figure 2 It is one of the partial structural diagrams of an embodiment of the present application, showing a positioning component.

[0034] Figure 3 yes Figure 2 Exploded diagram.

[0035] Figure 4 This is the second schematic diagram of the overall structure of the embodiment of the present application, showing the locking column.

[0036] Figure 5 This is the second partial structural diagram of an embodiment of the present application, showing a locking column.

[0037] Figure 6 yes Figure 5 sectional view of .

[0038] Figure 7 yes Figure 6 A magnified image of area A.

[0039] Figure 8 This is the third partial structural diagram of an embodiment of the present application, showing a locking assembly.

[0040] Fig. 9 This is the fourth partial structural diagram of an embodiment of the present application, showing a slide groove.

[0041] Fig.10 This is the fifth partial structural diagram of an embodiment of the present application, showing a locking hole.

[0042] Explanation of reference numerals: 1, mold clamping frame; 11, first driving member; 12, guide column; 2, fixed mold; 3, movable mold; 31, locking column; 311, ring groove; 312, boss; 313, first boss; 314, second boss; 315, third boss; 316, receiving groove; 32, second driving member; 33, direct abutment ring; 34, indirect abutment ring; 35, stop block; 351, stop groove; 36, heat insulation board; 4, driving assembly; 41, driven Gear; 42, first motor; 5, positioning assembly; 51, mounting plate; 52, connecting rod; 521, first scale line; 53, fourth drive member; 54, zero point positioning block; 55, rotating housing; 551, second scale line; 56, fixing block; 57, handle; 6, locking assembly; 61, baffle; 611, clearance hole; 612, limit plate; 613, slide groove; 62, locking plate; 621, through hole; 622, locking hole; 63, third drive member. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1 -Attached Fig.10 This application is described in further detail.

[0044] The embodiment of the present application discloses a mold clamping mechanism of a molding machine and a mold clamping method thereof.

[0045] like Figure 1As shown, it includes a clamping frame 1, the upper surface of the clamping frame 1 is rotatably connected with a fixed mold 2 and slidably connected with a mobile mold 3, the fixed mold 2 and the mobile mold 3 are arranged opposite to each other, and the side of the mobile mold 3 close to the fixed mold 2 is relatively fixedly connected with two heat insulation plates 36. The clamping frame 1 is connected with a driving assembly 4 for driving the fixed mold 2 to rotate, and the driving assembly 4 includes a rotating column rotatably connected to the clamping frame 1, a driven gear 41 fixedly connected to the rotating column, a driving gear rotatably connected to the clamping frame 1, and a first motor 42 for driving the driving gear to rotate, the first motor 42 is fixedly connected to the clamping frame 1, and the first motor 42 is externally connected to a controller (not shown in the drawings), and the signal output end of the controller is connected to the signal input end of the first motor 42. The side of the driving gear close to the first motor 42 is fixedly connected to the output end of the first motor 42, the driving gear is meshed with the driven gear 41, and the fixed mold 2 is fixedly connected to the rotating column.

[0046] like Figure 1 As shown, the clamping frame 1 is relatively fixedly connected with two first driving members 11 for driving the mobile mold 3 to slide toward or away from the fixed mold 2. The first driving member 11 is a cylinder. The signal output end of the controller is connected to the signal input end of the first driving member 11. The side of the mobile mold 3 close to the first driving member 11 is fixedly connected to the output end of the first driving member 11. The clamping frame 1 is fixedly connected with four guide posts 12, and the fixed mold 2 is provided with guide holes for slidingly cooperating with the corresponding guide posts 12.

[0047] Combination Figure 1 , Figure 2 and Figure 3 As shown, the clamping frame 1 is relatively fixedly connected with two positioning components 5, the positioning component 5 includes a mounting plate 51, a connecting rod 52 slidably connected to the mounting plate 51, and a fourth driving member 53 for driving the connecting rod 52 to slide, the fourth driving member 53 is fixedly connected to one side of the mounting plate 51, the fourth driving member 53 is an oil cylinder, and the signal output end of the controller is connected to the signal input end of the fourth driving member 53. The output end of the fourth driving member 53 passes through the mounting plate 51, and one end of the connecting rod 52 close to the fourth driving member 53 is threadedly connected to the output end of the fourth driving member 53. The mounting plate 51 is threadedly connected with four locking members, the locking members are bolts, and the mounting plate 51 is provided with mounting holes for threading with corresponding locking members. The number of mounting holes is four (the number of mounting holes is selected according to the number of locking members), one locking member corresponds to one mounting hole, and the four mounting holes are respectively located at the four corners of the mounting plate 51, and the mounting plate 51 is mounted on the clamping frame 1 through the locking members.

[0048] Combination Figure 1 , Figure 2 and Figure 3As shown, the output end of the fourth driving member 53 is threadedly connected with a zero point positioning block 54, and the zero point positioning block 54 is located between the fourth driving member 53 and the connecting rod 52. The connecting rod 52 is threadedly connected with a rotating casing 55, and the outer circumference of the connecting rod 52 is fixedly connected with a first scale line 521, and the first scale line 521 is distributed along the length direction of the connecting rod 52. The outer circumference of the rotating casing 55 is fixedly connected with a second scale line 551, and the second scale line 551 is distributed around the axis of the rotating casing 55. The second scale line 551 is located at one end of the rotating casing 55 close to the zero point positioning block 54. The end of the connecting rod 52 away from the fourth driving member 53 is detachably connected with a fixed block 56, and the fixed block 56 is cylindrical, and the rotating casing 55 is located between the zero point positioning block 54 and the fixed block 56. A threaded rod is provided on the side of the fixed block 56 close to the rotating casing 55. The threaded rod and the fixed block 56 are integrally formed. A threaded groove for threading with the threaded rod is provided on the side of the connecting rod 52 away from the zero point positioning block 54. When the position of the rotating casing 55 is determined, the fixed block 56 is rotated in the direction close to the rotating casing 55 until the fixed block 56 abuts against the rotating casing 55. The fixed block 56 restricts the rotating casing 55 from rotating in the direction away from the zero point positioning block 54, thereby improving the stability of the rotating casing 55 on the connecting rod 52.

[0049] Combination Figure 1 , Figure 2 and Figure 3 As shown, the outer circumference of the rotating casing 55 is threadedly connected with a handle 57, and the handle 57 includes a grip rod and a grip ball arranged on the grip rod, and the grip rod and the grip ball are integrally formed. The rotating casing 55 is provided with four threaded holes, and the four threaded holes are evenly distributed around the axis of the rotating casing 55, and the grip rod is threadedly connected with the threaded holes. The outer circumferences of the connecting rod 52 and the fixing block 56 are also provided with four threaded holes, and the handle 57 can also be installed on the connecting rod 52 or the fixing block 56 through the corresponding threaded holes.

[0050] like Figure 4 As shown, the side of the mobile mold 3 close to the fixed mold 2 is slidably connected with four locking columns 31, and the mobile mold 3 is fixedly connected with a second driving member 32 for driving the corresponding locking columns 31 to slide toward or away from the fixed mold 2. The second driving member 32 is a cylinder, and the signal output end of the controller is connected to the signal input end of the second driving member 32. One end of the locking column 31 close to the second driving member 32 is fixedly connected to the output end of the corresponding second driving member 32. Two locking components 6 are connected to the opposite sides of the fixed mold 2.

[0051] Combination Figure 5 , Figure 6 and Figure 7As shown, the locking column 31 is provided with an annular groove 311, and the locking column 31 is formed with a boss 312, and the radius of the boss 312 is smaller than the radius of the locking column 31. A first boss 313 is provided on the side of the boss 312 away from the locking column 31, a second boss 314 is provided on the side of the first boss 313 away from the boss 312, and a third boss 315 is provided on the side of the second boss 314 away from the first boss 313. The locking column 31, the boss 312, the first boss 313, the second boss 314 and the third boss 315 are integrally formed, the radius of the first boss 313 is smaller than the radius of the boss 312, the radius of the second boss 314 is smaller than the radius of the first boss 313, and the radius of the third boss 315 is larger than the second boss 314 and smaller than the radius of the first boss 313. The first boss 313 is sleeved with a direct abutment ring 33, and the radius of the direct abutment ring 33 is the same as the radius of the locking column 31. The second boss 314 is sleeved with an indirect abutment ring 34, which is formed by splicing two half rings, and the radius of the indirect abutment ring 34 is smaller than the radius of the direct abutment ring 33. A receiving groove 316 for the indirect abutment ring 34 to be clamped is formed between the first boss 313 and the third boss 315. When the direct abutment ring 33 is installed on the first boss 313 and the indirect abutment ring 34 is installed on the second boss 314, the direct abutment ring 33 abuts against the indirect abutment ring 34. The third boss 315 is threadedly connected with a stopper 35, and the stopper 35 is provided with a stopper groove 351 for the indirect abutment ring 34 to be clamped, and the radius of the stopper 35 is the same as the radius of the locking column 31. When the direct abutment ring 33 is subjected to force, the direct abutment ring 33 applies force to the indirect abutment ring 34, and the indirect abutment ring 34 is subjected to force and applies force to the inner wall of the accommodating groove 316, thereby reducing the force on the stop block 35 and protecting the internal thread of the stop block 35 and the external thread of the third boss 315.

[0052] Combination Figure 4 , Figure 8 , Fig. 9 and Fig.10As shown, the locking assembly 6 includes a baffle 61 fixedly connected to the fixed mold 2, a locking plate 62 slidably connected to the side of the baffle 61 close to the fixed mold 2, and a third driving member 63 for driving the baffle 61 to slide. The baffle 61 is provided with a clearance hole 611 for the locking column 31 to pass through. Two limiting plates 612 are arranged opposite to each other on the side of the baffle 61 close to the locking plate 62. The limiting plates 612 and the baffle 61 are integrally formed, and the clearance hole 611 is located between the two limiting plates 612. A sliding groove 613 is formed between the two limiting plates 612. The sliding groove 613 is slidably matched with the locking plate 62, and the sliding groove 613 is connected with the clearance hole 611. The locking plate 62 is provided with a through hole 621 for the locking column 31 to pass through and a locking hole 622 for the convex column 312 to cooperate with. The through hole 621 is connected with the locking hole 622, and the radius of the locking hole 622 is smaller than the radius of the through hole 621.

[0053] Figure 8 , Fig. 9 and Fig.10 As shown, the third driving member 63 is a cylinder, which is fixedly connected to the fixed mold 2, the signal output end of the controller is connected to the signal input end of the third driving member 63, and the side of the locking plate 62 close to the third driving member 63 is fixedly connected to the output end of the third driving member 63. Taking this embodiment as an example, the third driving member 63 is a double-headed cylinder, and there are two baffles 61, two locking plates 62 and two locking columns 31. The third driving member 63 is located between the two locking plates 62, and the two sides of the two locking plates 62 facing each other are fixedly connected to the two output ends of the third driving member 63 respectively.

[0054] The implementation principle of a molding machine mold clamping mechanism and a mold clamping method thereof in the embodiment of the present application is as follows:

[0055] Zero position alignment: first fit the movable mold 3 and the fixed mold 2 together, rotate the rotating shell 55 so that the rotating shell 55 is located at the end of the connecting rod 52 closest to the zero point positioning block 54, rotate the fixed block 56 so that the fixed block 56 abuts against the rotating shell 55, the fourth driving member 53 drives the output end of the fourth driving member 53 to extend, the output end of the fourth driving member 53 moves the maximum stroke, rotate the connecting rod 52 so that the fixed block 56 abuts against the movable mold 3 away from the side of the rotating shell 55, and at this time rotate the zero point positioning block 54 in the direction close to the rotating shell 55 so that the zero point positioning block 54 abuts against the connecting rod 52, completing the zero point alignment;

[0056] Step B, adjusting the distance between the movable mold 3 and the fixed mold 2: first loosen the fixed block 56 so that the fixed block 56 is separated from the rotating shell 55, and then rotate the rotating shell 55, and know the moving distance of the rotating shell 55 according to the first scale line 521 and the second scale line 551. When the rotating shell 55 moves to the corresponding position, rotate the fixed block 56 in the direction close to the rotating shell 55 so that the fixed block 56 abuts against the rotating shell 55. The moving distance of the rotating shell 55 is the distance between the movable mold 3 and the fixed mold 2;

[0057] Step C, mold closing: the first driving member 11 drives the movable mold 3 to slide toward the fixed mold 2 until the movable mold 3 abuts against the fixed block 56;

[0058] Step D, locking: the second driving member 32 drives the locking column 31 to slide in the direction close to the fixed mold 2, and one end of the locking column 31 passes through the fixed mold 2 and the through hole 621 until the boss 312 corresponds to the locking hole 622. The third driving member 63 drives the locking plate 62 to move so that the boss 312 is stuck in the locking hole 622. When high-temperature steam is filled between the fixed mold 2 and the movable mold 3, the second driving member 32 drives the locking column 31 to slide away from the end of the movable mold 3 in the direction close to the fixed mold 2, thereby reducing the force on the rotating column and protecting the rotating column.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mold clamping mechanism for a molding machine, characterized in that: The invention comprises a mold clamping frame (1), wherein the mold clamping frame (1) is connected to a fixed mold (2) and is slidably connected to a movable mold (3), wherein the mold clamping frame (1) is connected to a first driving member (11) for driving the movable mold (3) to slide in a direction approaching or away from the fixed mold (2), wherein a locking column (31) is slidably connected to a side of the movable mold (3) close to the fixed mold (2), wherein the movable mold (3) is connected to a second driving member (32) for driving the locking column (31) to slide in a direction approaching or away from the fixed mold (2), wherein the fixed mold (2) is connected to a locking component (6) for fixing the locking column (31), and wherein the mold clamping frame (1) is connected to a positioning component (5), wherein the positioning component (5) is used to abut against the movable mold (3), the positioning assembly (5) comprises a connecting rod (52) slidably connected to the mold clamping frame (1) and a fourth driving member (53) used to drive the connecting rod (52) to slide in a direction close to or away from the movable mold (3), the fourth driving member (53) is connected to the mold clamping frame (1), the output end of the fourth driving member (53) is threadedly connected to a zero point positioning block (54), the connecting rod (52) is threadedly connected to the output end of the fourth driving member (53), the zero point positioning block (54) is located between the fourth driving member (53) and the connecting rod (52), and the connecting rod (52) is threadedly connected to a rotating sleeve (55).

2. The mold clamping mechanism of the molding machine according to claim 1, characterized in that: The locking assembly (6) comprises a locking plate (62) slidably connected to a side of the fixed mold (2) away from the movable mold (3) and a third driving member (63) for driving the locking plate (62) to slide, the third driving member (63) being connected to the fixed mold (2), the locking column (31) being provided with an annular groove (311), the locking column (31) being formed with a convex column (312), the radius of the convex column (312) being smaller than the radius of the locking column (31), the locking plate (62) being provided with a through hole (621) for the locking column (31) to pass through and a locking hole (622) for cooperating with the convex column (312), the through hole (621) being connected to the locking hole (622), the radius of the locking hole (622) being smaller than the radius of the through hole (621).

3. The mold clamping mechanism of the molding machine according to claim 2, characterized in that: A direct abutment ring (33) and an indirect abutment ring (34) are sleeved on a side of the boss (312) away from the locking boss (31); the direct abutment ring (33) is located between the indirect abutment ring (34) and the boss (312); the direct abutment ring (33) and the indirect abutment ring (34) are in abutment with each other; the locking boss (31) is provided with a receiving groove (316) for the indirect abutment ring (34) to be snapped in; the locking boss (31) is threadedly connected with a stop block (35); the stop block (35) is provided with a stop groove (351) for the indirect abutment ring (34) to be snapped in.

4. The mold clamping mechanism of the molding machine according to claim 2, characterized in that: The locking assembly (6) further comprises a baffle (61) connected to the fixed mold (2), the baffle (61) being provided with two limit plates (612), a slide groove (613) being formed between the two limit plates (612), the locking plate (62) being slidably engaged with the slide groove (613), the baffle (61) being provided with a clearance hole (611) for the locking column (31) to pass through, the clearance hole (611) being in communication with the slide groove (613).

5. The mold clamping mechanism of the molding machine according to claim 1, characterized in that: One end of the connecting rod (52) away from the fourth driving member (53) is detachably connected to a fixing block (56); the rotating casing (55) is located between the zero point positioning block (54) and the fixing block (56); and the fixing block (56) is used to abut against the rotating casing (55).

6. The mold clamping mechanism of the molding machine according to claim 1, characterized in that: The connecting rod (52) is connected to a first scale line (521), the first scale line (521) is distributed along the length direction of the connecting rod (52), and the outer peripheral surface of the rotating shell (55) is connected to a second scale line (551), the second scale line (551) is distributed around the axis of the rotating shell (55).

7. The mold clamping mechanism of the molding machine according to claim 1, characterized in that: Two heat insulation plates (36) are connected to a side of the movable mold (3) close to the fixed mold (2).

8. The mold clamping mechanism of the molding machine according to claim 1, characterized in that: The locking assembly (6) is connected to the side of the fixed mold (2) close to the movable mold (3) or away from the movable mold (3); the fixed mold (2) is rotatably connected to the mold clamping frame (1); and the mold clamping frame (1) is connected to a driving assembly (4) for driving the fixed mold (2) to rotate.

Images