A mold opening and closing device with adaptive mold thickness

Abstract

This utility model relates to the field of mold opening and closing technology, specifically to an adaptive mold opening and closing device for mold thickness. It includes a lifting drive mechanism, a flipping drive mechanism, and a flipping plate. The flipping drive mechanism is mounted on a mold station frame. The flipping plate is connected to the flipping drive mechanism and located on one side of the mold station frame. The lifting drive mechanism is mounted on the flipping plate, and the upper mold is connected to the lifting drive mechanism, with the upper mold and the flipping plate arranged parallel to each other. The lifting drive mechanism drives the upper mold to move closer to or away from the flipping plate. The lower mold is located on one side of the mold station frame. In the closed state, the upper mold and the lower mold are parallel. In the open state, the flipping drive mechanism drives the flipping plate, causing the lifting drive mechanism and the upper mold to flip relative to the lower mold, so that the upper mold and the lower mold are arranged at an angle. Using the mold opening and closing device proposed in this application, molds of different thicknesses can be opened and closed, solving the problem of adapting the mold opening and closing device to molds of specific thicknesses.

Description

Technical Field

[0001] This utility model relates to the field of mold opening and closing technology, and in particular to an opening and closing device that adapts to mold thickness. Background Technology

[0002] The mold used in compression molding generally consists of an upper mold and a lower mold. After compression molding, the mold needs to be opened to separate the upper and lower molds and remove the molded material. Chinese Patent CN221437141U discloses a polyurethane shoe mold opening and closing device. This device includes a mold frame with a bottom mold mounted on it, as well as upper and lower molds, left and right molds, a first driving mechanism, and a second driving mechanism. The upper and lower molds and the left and right molds are all hinged to the mold frame. The first driving mechanism drives the upper and lower molds to rotate relative to the bottom mold for opening or closing, and the second driving mechanism drives the left and right molds to rotate relative to the bottom mold for opening or closing. However, in this opening and closing device, because the structure of the mold frame is fixed, and the other templates and the bottom mold are hinged to the mold frame, the thickness of the other templates and the bottom mold needs to be fixed to achieve smooth opening and closing. It can only adapt to molds of specific thicknesses and cannot adapt to molds of different thicknesses, resulting in poor versatility.

[0003] Therefore, it is necessary to design a mold opening and closing device to accommodate molds of different thicknesses. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an adaptive mold opening and closing device for mold thickness.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: An adaptive mold thickness opening and closing device is used to open or close an upper mold and a lower mold in a mold station. The mold station includes a mold station frame, a lifting drive mechanism, a mold flipping drive mechanism, and a mold flipping plate. The mold flipping drive mechanism is installed on the mold station frame. The mold flipping plate is connected to the mold flipping drive mechanism and is located on one side of the mold station frame. The lifting drive mechanism is installed on the mold flipping plate, and the upper mold is connected to the lifting drive mechanism. The upper mold and the mold flipping plate are arranged in parallel. The lifting drive mechanism is used to drive the upper mold to move closer to or away from the mold flipping plate. The lower mold is located on one side of the mold station frame. In the closed state, the upper mold and the lower mold are parallel. In the open state, the mold flipping drive mechanism drives the mold flipping plate to rotate the lifting drive mechanism and the upper mold relative to the lower mold, so that the upper mold and the lower mold are arranged at an angle.

[0006] Preferably, the mold-turning drive mechanism includes a mold-turning cylinder and two mold-turning arms. The two mold-turning arms are rotatably mounted on the mold station frame and fixedly connected to both sides of the mold-turning plate. The mold-turning cylinder is mounted on the mold station frame, and the piston rod of the mold-turning cylinder is fixedly connected to one of the mold-turning arms. The mold-turning cylinder is used to drive the mold-turning arm to rotate the mold-turning plate.

[0007] Preferably, the mold-flipping drive mechanism also includes two mold-flipping arm limiting blocks, which are installed on the mold station frame and located below the mold-flipping arm; the mold-flipping arm is provided with an adjusting component, and in the mold-closed state, the end of the adjusting component abuts against the mold-flipping arm limiting block.

[0008] Preferably, the lifting drive mechanism includes a lifting screw, a servo motor, and an upper mold fixing plate. The lifting screw passes through the flipping mold plate, and the upper mold fixing plate is fixedly installed at one end. The upper mold is detachably installed on the upper mold fixing plate. The servo motor is installed on the flipping mold plate and is connected to the lifting screw for driving the lifting screw to move the upper mold fixing plate closer to or away from the flipping mold plate.

[0009] Preferably, the lifting drive mechanism also includes four lifting guide columns, one end of which is fixedly installed on the upper mold fixing plate, and the four lifting guide columns are respectively inserted into the flip mold plate.

[0010] Preferably, a fixing mechanism is also included. The fixing mechanism is installed on the upper mold fixing plate. The fixing mechanism includes a telescopic rod that passes through the upper mold fixing plate. In the mold-open state, the telescopic rod extends toward the upper mold and abuts against the upper mold.

[0011] Preferably, it also includes two L-shaped brackets, each comprising a vertical portion and a horizontal portion. The two vertical portions are fixedly installed on both sides of the upper mold fixing plate, and the horizontal portion is used to support the upper mold.

[0012] Preferably, the upper mold has two mounting parts on both sides. The horizontal part facing the upper mold fixing plate has a first mounting groove and a second mounting groove. The mounting part is adapted to the first mounting groove, and the inner diameter of the second mounting groove is larger than the outer diameter of the mounting part.

[0013] Preferably, the system also includes a lower mold fixing plate, a mold moving track, a pulley assembly, and a fixing block. The mold moving track is installed on one side of the mold station frame. The lower mold fixing plate is slidably mounted on the mold moving track via the pulley assembly. The fixing block is located on one side of the mold moving track and has a first opening facing the mold moving track. In the mold-opening state, part of the structure of the pulley assembly is located in the first opening to restrict the pulley assembly from disengaging from the mold moving track.

[0014] Preferably, a mold closing sensor is also included. The mold closing sensor is installed on the mold station frame and located below the mold flipping cylinder. In the mold closing state, the mold closing sensor abuts against the mold flipping cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The mold opening and closing device for adaptive mold thickness proposed in this application is equipped with a lifting drive mechanism and a flipping drive mechanism to drive the upper mold to move up and down and flip relative to the lower mold. It not only realizes the automatic opening and closing operation of the upper and lower molds, but also can adapt to molds of different thicknesses. It has good versatility and solves the problem that the mold opening and closing device can only adapt to molds of specific thicknesses.

[0016] (2) The mold opening and closing device for adaptive mold thickness proposed in this application is designed with a mold flipping arm limiting block and a mold closing sensor. The mold flipping arm flips to a state where the upper mold and the lower mold are parallel. The mold flipping arm limiting block limits the mold flipping arm. The mold flipping arm is in the mold flipping stop position. The mold closing sensor senses the mold flipping cylinder. The mold flipping cylinder stops driving the mold flipping arm to flip, ensuring that the upper mold and the lower mold remain parallel each time the mold is closed.

[0017] (3) The mold opening and closing device for adaptive mold thickness proposed in this application has a fixed block on one side of the mold moving track. In the mold opening state, part of the pulley assembly is located in the first opening to restrict the pulley assembly from leaving the mold moving track. Thus, while avoiding separation of the upper mold and the lower mold, the upper mold drives the lower mold and the lower mold fixing plate to move upward. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an adaptive mold thickness opening and closing device proposed in this application; Figure 2 This is a schematic diagram of the mold opening and closing device with adaptive mold thickness proposed in this application in the mold closing state; Figure 3 This is a schematic diagram of the mold opening and closing device with adaptive mold thickness proposed in this application in the mold opening state; Figure 4 This is a schematic diagram of the upper mold fixing plate and L-shaped bracket of the mold opening and closing device that adapts to mold thickness according to this application; Figure 5 This is a schematic diagram of the upper mold of the mold opening and closing device for adaptive mold thickness proposed in this application; Figure 6 This is a partial structural diagram of the lower mold fixing plate, pulley assembly, lower mold, mold moving track and fixing block of an adaptive mold thickness opening and closing device proposed in this application.

[0019] Reference numerals: 1. Lifting drive mechanism; 11. Lifting screw; 12. Servo motor; 13. Lifting guide column; 2. Mold flipping drive mechanism; 21. Mold flipping cylinder; 22. Mold flipping arm; 221. Adjusting component; 23. Mold flipping arm limit block; 3. Mold flipping plate; 41. Upper mold fixing plate; 42. Lower mold fixing plate; 43. Mold moving track; 44. Pulley assembly; 45. Fixing block; 5. Mold station frame; 61. Upper mold; 611. Mounting part; 62. Lower mold; 7. Fixing mechanism; 71. Telescopic rod; 8. L-shaped bracket; 81. Vertical part; 82. Horizontal part; 821. First mounting slot; 822. Second mounting slot; 9. Mold closing sensor. Detailed Implementation

[0020] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. The accompanying drawings are merely illustrative to facilitate understanding of the present invention, and their specific proportions can be adjusted according to design requirements. The vertical relationships of relative elements and the definitions of front / back in the graphics described herein should be understood by those skilled in the art to refer to the relative positions of the components; therefore, they can all be flipped to present the same component, and all of this should fall within the scope disclosed in this specification.

[0021] refer to Figures 1 to 6 The embodiments of this application propose an adaptive mold thickness opening and closing device for opening or closing the upper mold 61 and lower mold 62 in a mold station. The mold station includes a mold station frame 5. The adaptive mold thickness opening and closing device includes a lifting drive mechanism 1, a mold flipping drive mechanism 2, a mold flipping plate 3, a lower mold fixing plate 42, a mold moving track 43, a pulley assembly 44, a fixing block 45, and two L-shaped brackets 8. The mold flipping drive mechanism 2 is installed on the mold station frame 5. The mold flipping plate 3 is connected to the mold flipping drive mechanism 2 and is located on one side of the mold station frame 5. The lifting drive mechanism 1 is installed on the mold flipping plate 3, and the upper mold 61 is connected to the lifting drive mechanism 1. The upper mold 61 and the flipping platen 3 are arranged in parallel. The lifting drive mechanism 1 is used to drive the upper mold 61 to move closer to or away from the flipping platen 3. The lower mold 62 is located on one side of the mold station frame 5. In the mold-closed state, the upper mold 61 and the lower mold 62 are parallel. In the mold-opening state, the flipping platen 3 is driven by the flipping drive mechanism 2 to drive the lifting drive mechanism 1 and the upper mold 61 to flip relative to the lower mold 62, so that the upper mold 61 and the lower mold 62 are set at an angle. The mold-opening and closing device that adapts to mold thickness proposed in this application can not only automatically open and close the upper mold 61 and the lower mold 62, but also increases the space for the upper mold 61 to flip when opening the mold by driving the upper mold 61 to lift relative to the lower mold 62. This eliminates the limitation of the mold-opening and closing device on the mold thickness and can adapt to molds of different thicknesses for mold-opening and closing operations, solving the problem that the mold-opening and closing device can only adapt to molds of specific thicknesses.

[0022] In a specific embodiment, refer to Figure 1 The mold-flipping drive mechanism 2 includes a mold-flipping cylinder 21, two mold-flipping arms 22, and two mold-flipping arm limiting blocks 23. The two mold-flipping arms 22 are rotatably mounted on the mold station frame 5 and fixedly connected to both sides of the mold-flipping plate 3. The mold-flipping cylinder 21 is mounted on the mold station frame 5, and its piston rod is fixedly connected to one of the mold-flipping arms 22. The mold-flipping cylinder 21 drives the mold-flipping arm 22 to rotate the mold-flipping plate 3. The mold-flipping arm limiting blocks 23 are mounted on the mold station frame 5 and located below the mold-flipping arms 22. Adjustment components 221 are provided on the mold-flipping arms 22. Figure 2 In the mold-closed state, the end of the adjusting component 221 abuts against the mold-flipping arm limiting block 23. Specifically, the adjusting component 221 can be fine-tuned before the mold-opening and closing device operates. When the flipping drive mechanism drives the mold-flipping plate 3 to flip so that the upper mold 61 and lower mold 62 are parallel, the installation position of the adjusting component 221 on the mold-flipping arm 22 is fine-tuned so that the adjusting component 221 on the mold-flipping arm 22 abuts against the mold-flipping arm limiting block 23, and the mold-flipping arm 22 is in the mold-flipping stop position. This ensures that when the mold-opening and closing device operates and the upper mold 61 and lower mold 62 are parallel, the mold-flipping arm 22 is stuck in the mold-flipping stop position and no longer flips. By setting the adjusting component 221, it is ensured that the upper mold 61 and lower mold 62 remain parallel each time the mold is closed, so that the upper mold 61 and lower mold 62 can fit tightly together when they are closed.

[0023] In a specific embodiment, refer to Figure 1 and Figure 2 The lifting drive mechanism 1 includes a lifting screw 11, a servo motor 12, four lifting guide columns 13, and an upper mold fixing plate 41. The lifting screw 11 passes through the flipping mold plate 3, and one end of it is fixedly mounted with the upper mold fixing plate 41. The upper mold fixing plate 41 is arranged parallel to the flipping mold plate 3. The servo motor 12 is mounted on the flipping mold plate 3 and is connected to the lifting screw 11 for transmission, and is used to drive the lifting screw 11 to move the upper mold fixing plate 41 closer to or away from the flipping mold plate 3. One end of the lifting guide column 13 is fixedly mounted on the upper mold fixing plate 41, and the four lifting guide columns 13 are respectively inserted in the flipping mold plate 3. The lifting guide columns 13 guide the upper mold fixing plate 41, so that the upper mold fixing plate 41 drives the upper mold 61 to move smoothly up and down.

[0024] In a specific embodiment, refer to Figure 2 , Figure 4 and Figure 5The L-shaped bracket 8 includes a vertical portion 81 and a horizontal portion 82. The two vertical portions 81 are fixedly installed on both sides of the upper mold fixing plate 41, and the horizontal portion 82 is used to support the upper mold 61. Specifically, two mounting portions 611 are provided on both sides of the upper mold 61. The horizontal portion 82 has a first mounting groove 821 and a second mounting groove 822 facing the upper mold fixing plate 41. The mounting portion 611 is adapted to the first mounting groove 821. The inner diameter of the second mounting groove 822 is larger than the outer diameter of the mounting portion 611. When the upper mold 61 is installed on the upper mold mounting plate, it is convenient to first insert one of the mounting portions 611 on each side into the second mounting groove 822, and then finely adjust the position to install the other mounting portion 611 into the first mounting groove 821, without having to install the mounting portion 611 of the upper mold 61 directly opposite the first mounting groove 821 and the second mounting groove 822. In the embodiments of this application, the inner diameter of the second mounting groove 822 is 1.5 to 2 times the outer diameter of the mounting portion 611.

[0025] In a specific embodiment, refer to Figure 1 and Figure 6 The mold transfer track 43 is installed on one side of the mold station frame 5. The lower mold fixing plate 42 is slidably mounted on the mold transfer track 43 via a pulley assembly 44. Specifically, the pulley assembly 44 includes a pulley and a pulley seat. The pulley is installed in the pulley seat and slidably connected to the mold transfer track 43. The fixing block 45 is located on one side of the mold transfer track 43 and has a first opening facing the mold transfer track 43. The first opening is U-shaped. In the mold-opening state, part of the structure of the pulley assembly 44 is located in the first opening to prevent the pulley assembly 44 from disengaging from the mold transfer track 43. When the lifting drive... When the moving mechanism 1 drives the upper mold fixing plate 41 and moves the upper mold 61 upward to separate the upper mold 61 and the lower mold 62, if there is partial adhesion between the upper mold 61 and the lower mold 62, the lower mold 62 and the lower mold fixing plate 42 will be driven upward by the upper mold 61. However, since the lower mold fixing plate 42 is fixedly connected to the pulley assembly 44, and part of the structure of the pulley assembly 44 is located in the first opening of the fixing block 45, the lower mold 62 and the lower mold fixing plate 42 are prevented from moving upward with the upper mold 61 by the fixing block 45 to hold the pulley assembly 44.

[0026] In a specific embodiment, it also includes a fixing mechanism 7 and a mold closing sensor 9, see reference. Figure 1 and Figure 3 The fixing mechanism 7 is installed on the upper mold fixing plate 41. The fixing mechanism 7 includes a telescopic rod 71, which passes through the upper mold fixing plate 41. (Reference) Figure 3In the open mold state, the telescopic rod 71 extends towards the upper mold 61 and abuts against the upper mold 61 to apply pressure to the upper mold 61 towards the horizontal portion 82 of the L-shaped bracket 8, preventing the upper mold 61 from falling off the upper mold fixing plate 41. In the embodiment of this application, the fixing mechanism 7 is a cylinder. In the open mold state, the piston rod of the cylinder extends towards the upper mold 61 and abuts against the upper mold 61. The mold closing sensor 9 is installed on the mold station frame 5 and located below the mold flipping cylinder 21. In the closed mold state, the mold closing sensor 9 abuts against the mold flipping cylinder 21. Specifically, when the mold closing sensor 9 abuts against the mold flipping cylinder 21, the piston rod of the mold flipping cylinder 21 retracts until the mold flipping arm 22 is in the mold flipping stop position, and the mold flipping cylinder 21 stops driving the mold flipping arm 22 to flip.

[0027] The working process of the mold opening and closing device with adaptive mold thickness proposed in this application is described below.

[0028] During the mold opening process, the upper mold 61 and the lower mold 62 are in the closed state. The servo motor 12 is started, and the servo motor 12 drives the lifting screw 11 to move upward. The lifting screw 11 drives the upper mold fixing plate 41 and the upper mold 61 to move upward closer to the mold flipping plate 3, so that the upper mold 61 and the lower mold 62 are separated. The upper mold fixing plate 41 is guided by the lifting guide column 13, so that the upper mold fixing plate 41 and the upper mold 61 move smoothly. At this time, the pulley assembly 44 connected to the lower mold fixing plate 42 is partially located in the first opening of the fixing block 45 to prevent the upper mold 61 from driving the lower mold 62 and the lower mold fixing plate 42 to move upward. Then, the mold flipping drive mechanism 2 drives the mold flipping plate 3 to drive the upper mold fixing plate 41 and the upper mold 61 to rotate in the first direction, so that the upper mold 61 flips relative to the lower mold 62. The mold opening action is completed, and the upper mold 61 and the lower mold 62 are in the open state. During the flipping process of the upper mold 61 and in the open state, the telescopic rod 71 of the fixing mechanism 7 extends towards the upper mold 61 and abuts against it, applying pressure to the upper mold 61 towards the horizontal portion 82 of the L-shaped bracket 8. This fixes the relative position of the upper mold 61 and the upper mold fixing plate 41, preventing the upper mold 61 from falling off the upper mold fixing plate 41 during flipping. In the embodiments of this application, the distance of the upper mold 61's lifting and lowering movement and the angle of its flipping can be adjusted to adapt to the opening and closing of molds of different thicknesses, exhibiting good versatility.

[0029] During the mold closing process, the upper mold 61 and the lower mold 62 separate and are set at an angle. The mold-flipping cylinder 21 is activated, which drives the mold-flipping plate 3 to rotate the upper mold fixing plate 41 and the upper mold 61 in a second direction, which is opposite to the first direction, until the upper mold 61 rotates to a position parallel to the lower mold 62. At this time, the end of the adjusting component 221 abuts against the mold-flipping arm limit block 23, and the mold-flipping cylinder 21 abuts against the mold closing sensor 9. The servo motor 12 is activated, which drives the lifting screw 11 to move the upper mold fixing plate 41 and the upper mold 61 away from the mold-flipping plate 3 and downward until the upper mold 61 and the lower mold 62 close together. The mold closing action is completed, and the upper mold 61 and the lower mold 62 are in the closed state.

[0030] The above embodiments are only used to further illustrate the technical solution of this utility model, but this utility model is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of the technical solution of this utility model.

Claims

1. A mold opening and closing device that adapts to mold thickness, used to open or close an upper mold and a lower mold within a mold station, the mold station comprising a mold station frame, characterized in that: The system includes a lifting drive mechanism, a mold flipping drive mechanism, and a mold flipping plate. The mold flipping drive mechanism is mounted on a mold station frame. The mold flipping plate is connected to the mold flipping drive mechanism and is located on one side of the mold station frame. The lifting drive mechanism is mounted on the mold flipping plate. The upper mold is connected to the lifting drive mechanism, and the upper mold and the mold flipping plate are arranged in parallel. The lifting drive mechanism is used to drive the upper mold to move closer to or away from the mold flipping plate. The lower mold is located on one side of the mold station frame. In the mold-closed state, the upper mold and the lower mold are parallel. In the mold-open state, the mold flipping drive mechanism drives the mold flipping plate to cause the lifting drive mechanism and the upper mold to flip relative to the lower mold, so that the upper mold and the lower mold are arranged at an angle.

2. The mold opening and closing device for adaptive mold thickness according to claim 1, characterized in that: The mold-flipping drive mechanism includes a mold-flipping cylinder and two mold-flipping arms. The two mold-flipping arms are rotatably mounted on the mold station frame and fixedly connected to both sides of the mold-flipping plate. The mold-flipping cylinder is mounted on the mold station frame, and the piston rod of the mold-flipping cylinder is fixedly connected to one of the mold-flipping arms. The mold-flipping cylinder is used to drive the mold-flipping arm to rotate the mold-flipping plate.

3. The mold opening and closing device for adaptive mold thickness according to claim 1, characterized in that: The mold-flipping drive mechanism also includes two mold-flipping arm limiting blocks, which are installed on the mold station frame and located below the mold-flipping arm; the mold-flipping arm is provided with an adjusting component, and in the mold-closed state, the end of the adjusting component abuts against the mold-flipping arm limiting block.

4. The mold opening and closing device for adaptive mold thickness according to claim 1, characterized in that: The lifting drive mechanism includes a lifting screw, a servo motor, and an upper mold fixing plate. The lifting screw passes through the flipping mold plate, and the upper mold fixing plate is fixedly installed at one end. The upper mold is detachably installed on the upper mold fixing plate. The servo motor is installed on the flipping mold plate and is connected to the lifting screw for driving the lifting screw to move the upper mold fixing plate closer to or away from the flipping mold plate.

5. The mold opening and closing device for adaptive mold thickness according to claim 4, characterized in that: The lifting drive mechanism also includes four lifting guide columns, one end of which is fixedly installed on the upper mold fixing plate, and the four lifting guide columns are respectively inserted into the flip mold plate.

6. The mold opening and closing device for adaptive mold thickness according to claim 1, characterized in that: It also includes a fixing mechanism, which is installed on the upper mold fixing plate. The fixing mechanism includes a telescopic rod that passes through the upper mold fixing plate. In the mold-open state, the telescopic rod extends toward the upper mold and abuts against the upper mold.

7. The mold opening and closing device for adaptive mold thickness according to claim 4, characterized in that: It also includes two L-shaped brackets, each L-shaped bracket comprising a vertical part and a horizontal part. The two vertical parts are fixedly installed on both sides of the upper mold fixing plate, and the horizontal part is used to support the upper mold.

8. The mold opening and closing device for adaptive mold thickness according to claim 7, characterized in that: Two mounting portions are provided on both sides of the upper mold. The horizontal portion is provided with a first mounting groove and a second mounting groove facing the upper mold fixing plate. The mounting portion is adapted to the first mounting groove, and the inner diameter of the second mounting groove is larger than the outer diameter of the mounting portion.

9. The mold opening and closing device for adaptive mold thickness according to claim 1, characterized in that: It also includes a lower mold fixing plate, a mold moving track, a pulley assembly, and a fixing block. The mold moving track is installed on one side of the mold station frame. The lower mold fixing plate is slidably mounted on the mold moving track via the pulley assembly. The fixing block is located on one side of the mold moving track and has a first opening facing the mold moving track. In the mold-opening state, part of the structure of the pulley assembly is located in the first opening to restrict the pulley assembly from disengaging from the mold moving track.

10. The mold opening and closing device for adaptive mold thickness according to claim 2, characterized in that: It also includes a mold closing sensor, which is installed on the mold station frame and located below the mold flipping cylinder. In the mold closing state, the mold closing sensor abuts against the mold flipping cylinder.

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