Automatic shoe mold opening device

Abstract

The invention relates to an automatic shoe mold opening device which comprises a mold push plate and a mold overturning plate, one end of the mold overturning plate is hinged to the mold push plate, the middle of the mold overturning plate is in linkage with an overturning driving assembly, and the mold push plate is in linkage with a first lifting driving assembly. During working, the first lifting driving assembly drives the mold push plate to ascend, so that the shoe mold lock catch is opened; and then the overturning driving assembly is started to drive the mold overturning plate to rotate around the hinge point, so that the upper mold and the lower mold of the shoe mold are separated. Through cooperative work of the mold push plate and the mold turnover plate, the mold opening precision and stability are ensured, and the device is suitable for shoe molds of different specifications. The guide rod connecting plate is in linkage with the top die guide rod, the second driving source is rotationally connected with the guide rod connecting plate through the first U-shaped hinge seat, the second U-shaped hinge seat is rotationally connected with the die overturning plate, and stable overturning of the die overturning plate is achieved.

Description

Technical Field

[0001] The invention particularly relates to an automatic mold opening device for shoe molds. Background Art

[0002] The shoe mold compatible with the disc rotary shoe injection machine is generally composed of an upper mold plate and a lower mold plate. Before the mold is closed and injected, the upper mold plate and the lower mold plate are locked with a fixing buckle, and then injection molding is performed to form a plastic sole.

[0003] A Chinese invention patent document with publication number "CN202556696U" discloses an automatic mold opening device for shoe molds, which includes a bracket, an unlocking linear drive and two sets of mold opening linear drives. The unlocking linear drive is located below the push handle, and the mold opening linear drive is located outside the push handle. The device also includes a hook plate that limits the upward flipping of the lower mold, a linear drive in the form of a driving cylinder or a cylinder, and a pressure block that cooperates with the linear drive. The piston rod of the unlocking linear drive extends, pushes the push handle to make the lock body disengage from the lower mold, and the upper mold flips up to a certain angle to reach the unlocking position, completing the unlocking action. The piston rod of the mold opening linear drive extends, pushes the push handle to make the upper mold continue to flip up to the mold opening position, completing the mold opening action. The attitude angles of the unlocking linear drive, the mold opening linear drive and the spare mold opening linear drive are adjusted by the first, second and third telescopic adjustment arms to adapt to shoe molds of different models and sizes.

[0004] The above-mentioned automatic shoe mold opening device has the following defects: First, the unlocking linear drive and mold opening linear drive control the unlocking and mold opening actions independently, and there is no correlation between the two. In actual operation, once the unlocking action is not fully in place, the mold is opened, or the mold opening action is too fast, resulting in incomplete separation of the upper mold and the lower mold, thus affecting the product quality and production efficiency.

[0005] Secondly, in order to adapt to different types of shoe molds, the first, second and third telescopic adjustment arms must be adjusted to change the angles of the unlocking linear drive, the mold opening linear drive and the spare mold opening linear drive to adapt to shoe molds of different sizes. However, this adjustment method has extremely poor accuracy and is time-consuming and labor-intensive. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an automatic shoe mold opening device in view of the deficiencies of the above-mentioned prior art. The mold push plate and the mold flip plate work together to first move up to unlock the mold and then flip it to open the mold, thereby avoiding incomplete mold opening, ensuring accuracy and stability, and being able to adapt to different shoe molds without adjusting the angle.

[0007] To achieve the above object, the present invention provides the following technical solutions: The automatic mold opening device for shoe molds includes a mold push plate and a mold flip plate, and is characterized in that one end of the mold flip plate is hinged on the mold push plate, and the middle part of the mold flip plate is linked with a flip drive component, and the flip drive component can drive the mold flip plate to rotate around the hinge point between the mold flip plate and the mold push plate. The mold push plate is linked with a first lifting drive component. When the first lifting drive component drives the mold push plate to move vertically, the mold flip plate follows the mold push plate to move vertically.

[0008] With the above technical solution, the first lifting drive assembly is started, driving the mold push plate to move vertically upward. Since one end of the mold flip plate is hinged to the mold push plate, the mold flip plate will move upward with the mold push plate. In this process, the upward movement of the mold push plate will cause the lock of the shoe mold to be opened. This is because the mold push plate is connected to the lock mechanism of the shoe mold. When the mold push plate rises, an upward force will be applied to disengage the lock, thereby realizing the unlocking action. When the mold push plate rises to a certain position and the lock is fully opened, the flip drive assembly starts to work. The flip drive assembly drives the mold flip plate to rotate around its hinge point with the mold push plate. The rotation of the mold flip plate will push the upper mold of the shoe mold to flip and separate it from the lower mold. Since the middle part of the mold flip plate is linked to the flip drive assembly, the rotation torque provided by the flip drive assembly can effectively flip the upper mold to the desired position to complete the mold opening action. Through the coordinated work of the mold push plate and the mold flip plate, this solution can coordinate the unlocking and mold opening actions more accurately. The mold push plate first moves up to unlock, and then the mold flip plate rotates to open the mold, avoiding the situation where the mold is opened before the lock is in place, ensuring the accuracy and stability of mold opening. At the same time, since the mold opening direction is always "upward and flipping", there is no need to adjust the angle of the mold push plate or the mold flip plate to adapt to shoe molds of different specifications and types.

[0009] The above-mentioned automatic mold opening device for shoe molds can be further configured as follows: the first lifting drive assembly includes a mounting plate and a first drive source fixed to the mounting plate, the output end of the first drive source is linked to a mold push plate, both ends of the mold push plate are connected to top mold guide rods, the mounting plate is provided with a group of sliding holes corresponding to each group of top mold guide rods, the top mold guide rods are inserted into the sliding holes and the two are slidably matched.

[0010] By adopting the above technical solution, through the sliding cooperation between the top mold guide rod and the sliding hole, the mold push plate can maintain good stability when moving vertically, avoiding displacement or vibration caused by the thrust or pull of the driving source, and the mold push plate can move smoothly along the predetermined trajectory, ensuring the accuracy and consistency of the unlocking and mold opening actions, and improving the molding quality of the shoe mold. Among them, the first driving source can be any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder. At the same time, the top mold guide rod and the sliding hole can achieve sliding cooperation between the two through a linear bearing.

[0011] The above-mentioned automatic mold opening device for shoe molds can be further configured as follows: the end of the top mold guide rod away from the mold push plate is linked to a guide rod connecting plate, the flipping drive assembly includes a second driving source, the output end of the second driving source is linked to the mold flipping plate, and a first U-shaped hinge seat is provided on the guide rod connecting plate, and the body of the second driving source is rotatably connected to the first U-shaped hinge seat.

[0012] With the above technical solution, the guide rod connecting plate is linked with two sets of top mold guide rods at the same time. When the top mold guide rod moves with the mold push plate, it not only drives the second driving source to move upward synchronously, but also can further limit the moving path of the mold push plate, thereby improving the working stability and accuracy of the mold push plate. The first U-shaped hinge seat is used to realize the rotational connection between the second driving source and the guide rod connecting plate to avoid interference when the mold flip plate rotates. Among them, the second driving source can be any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0013] The above-mentioned shoe mold automatic mold opening device can be further configured as follows: the output end of the second driving source is connected to a second U-shaped hinge seat, the middle part of the mold flip plate is provided with a connecting block extending toward the side, the connecting block is inserted into the middle part of the second U-shaped hinge seat and the two are rotatably connected.

[0014] With the above technical solution, the second U-shaped hinge seat is used to realize the rotational connection between the second driving source and the mold flip plate, further avoiding interference when the mold flip plate rotates. By setting the connecting block, the flipping stroke of the mold flip plate can be lengthened to ensure that the shoe mold is fully opened.

[0015] The above-mentioned automatic shoe mold opening device can be further configured as follows: a strip groove that can accommodate the mold flip plate runs through the middle of the mold push plate, and the hinge between the mold flip plate and the mold push plate is distributed at the inner end of the strip groove.

[0016] By adopting the above technical solution, the mold flip plate is placed in the strip groove when it is not flipped, which not only protects the mold flip plate but also prevents the mold flip plate from occupying too much space, thereby making rational use of the space.

[0017] The above-mentioned automatic shoe mold opening device can be further configured as follows: the guide rod connecting plate is provided with a first clearance hole corresponding to the first driving source.

[0018] By adopting the above technical solution, when opening the mold, the guide rod connecting plate will move with the mold push plate, and the first clearance hole is set to avoid interference between the guide rod connecting plate and the mold push plate.

[0019] The above-mentioned automatic shoe mold opening device can be further configured as follows: the mounting plate is provided with a second clearance hole corresponding to the second driving source.

[0020] With the above technical solution, when the mold flip plate flips, the second driving source needs to be pushed upward, which will cause a relative position change with the mounting plate. A second clearance hole is provided to avoid interference between the second driving source and the mounting plate.

[0021] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 It is a schematic diagram of an explosion of an embodiment of the present invention.

[0023] Reference numerals: mold push plate 1, mold turning plate 2, mounting plate 3, hydraulic cylinder 4, top mold guide rod 5, guide rod connecting plate 6, first U-shaped hinge seat 7, cylinder 8, first make way hole 9, second make way hole 10, second U-shaped hinge seat 11, connecting block 12, strip groove 13. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figures 1 to 2 The shoe mold automatic mold opening device shown in the figure comprises a mold push plate 1 and a mold flip plate 2. One end of the mold flip plate 2 is hinged on the mold push plate 1. The middle part of the mold flip plate 2 is linked with a flip driving assembly. The flip driving assembly can drive the mold flip plate 2 to rotate around the hinge point between the mold flip plate 2 and the mold push plate 1. The mold push plate 1 is linked with a first lifting driving assembly. When the first lifting driving assembly drives the mold push plate 1 to move vertically, the mold flip plate 2 follows the mold push plate 1 to move vertically. Through the coordinated work of the mold push plate 1 and the mold flip plate 2, the unlocking and mold opening actions can be coordinated more accurately. The mold push plate 1 first moves up to unlock, and then the mold flip plate 2 rotates to open the mold, avoiding the situation where the mold is opened before the unlocking is in place, ensuring the accuracy and stability of the mold opening. At the same time, since the mold opening direction is always "upward, flip", there is no need to adjust the angle of the mold push plate 1 or the mold flip plate 2, so it can adapt to shoe molds of different specifications and types.

[0026] The first lifting drive assembly includes a mounting plate 3 and a hydraulic cylinder 4 fixed on the mounting plate 3. The output end of the hydraulic cylinder 4 is linked to the mold push plate 1. Both ends of the mold push plate 1 are connected to the top mold guide rod 5. The mounting plate 3 is provided with a group of sliding holes corresponding to each group of top mold guide rods 5. The top mold guide rods 5 are inserted into the sliding holes and the two are slidably matched. Through the sliding match between the top mold guide rods 5 and the sliding holes, the mold push plate 1 can maintain good stability during vertical movement, avoiding displacement or vibration caused by the thrust or pull of the hydraulic cylinder. The mold push plate 1 can move smoothly along a predetermined trajectory, ensuring the accuracy and consistency of the unlocking and mold opening actions, and improving the molding quality of the shoe mold. Among them, the hydraulic cylinder 4 can be replaced by any one of the methods such as the air cylinder 8 or the electric cylinder. At the same time, the top mold guide rods 5 and the sliding holes can achieve sliding fit between the two through linear bearings.

[0027] The end of the top mold guide rod 5 away from the mold push plate 1 is linked to a guide rod connecting plate 6, and the flip drive assembly includes a cylinder 8. The output end of the cylinder 8 is linked to the mold flip plate 2. The guide rod connecting plate 6 is provided with a first U-shaped hinge seat 7, and the body of the cylinder 8 is rotatably connected to the first U-shaped hinge seat 7. The guide rod connecting plate 6 is linked to the two groups of top mold guide rods 5 at the same time. When the top mold guide rod 5 moves with the mold push plate 1, it not only drives the cylinder 8 to move up synchronously, but also can further limit the moving path of the mold push plate 1, thereby improving the working stability and accuracy of the mold push plate 1. The first U-shaped hinge seat 7 is used to realize the rotational connection between the cylinder 8 and the guide rod connecting plate 6 to avoid interference when the mold flip plate 2 rotates. Among them, the cylinder 8 can be replaced by any one of the hydraulic cylinder 4 or electric cylinder.

[0028] The guide rod connecting plate 6 is provided with a first clearance hole 9 corresponding to the hydraulic cylinder 4. When the mold is opened, the guide rod connecting plate 6 will move with the mold push plate 1, and the first clearance hole 9 is provided to avoid interference between the guide rod connecting plate 6 and the mold push plate 1.

[0029] The mounting plate 3 is provided with a second clearance hole 10 corresponding to the cylinder 8. When the mold turning plate 2 turns over, the cylinder 8 needs to be pushed upward, so that the relative position between the cylinder 8 and the mounting plate 3 changes. The second clearance hole 10 is provided to avoid interference between the cylinder 8 and the mounting plate 3.

[0030] The output end of the cylinder 8 is connected to a second U-shaped hinge seat 11, and a connecting block 12 extending toward the side is provided in the middle of the mold flip plate 2. The connecting block 12 is inserted into the middle of the second U-shaped hinge seat 11 and the two are rotatably connected. The second U-shaped hinge seat 11 is used to realize the rotational connection between the cylinder 8 and the mold flip plate 2, further avoiding interference when the mold flip plate 2 rotates. By providing the connecting block 12, the flipping stroke of the mold flip plate 2 can be lengthened to ensure that the shoe mold is fully opened.

[0031] A strip groove 13 for accommodating the mold flip plate 2 runs through the middle of the mold push plate 1, and the hinges between the mold flip plate 2 and the mold push plate 1 are located at the inner end of the strip groove 13. When the mold flip plate 2 is not flipped, it is placed in the strip groove 13, which protects the mold flip plate 2 while preventing the mold flip plate 2 from occupying too much space, thereby making reasonable use of the space.

[0032] The specific working principle of this embodiment is as follows: the hydraulic cylinder 4 drives the mold push plate 1 to move vertically upward. Since one end of the mold flip plate 2 is hinged to the mold push plate 1, the mold flip plate 2 will move upward with the mold push plate 1. In this process, the upward movement of the mold push plate 1 will cause the lock of the shoe mold to be opened. This is because the mold push plate 1 is connected to the lock mechanism of the shoe mold. When the mold push plate 1 rises, an upward force will be applied to disengage the lock, thereby realizing the unlocking action. When the mold push plate 1 rises to a certain position and the lock is fully opened, the flip drive assembly starts to work. The cylinder 8 drives the mold flip plate 2 to rotate around the hinge point between the mold flip plate 2 and the mold push plate 1. The rotation of the mold flip plate 2 will push the upper mold of the shoe mold to flip, so that it is completely separated from the lower mold. Since the middle part of the mold flip plate 2 is linked with the flip drive assembly, the rotation torque provided by the flip drive assembly can effectively flip the upper mold to the desired position to complete the mold opening action.

Claims

1. Automatic shoe mold opening device, including mold push plate and mold flip plate, characterized by: One end of the mold flip plate is hinged to the mold push plate, and the middle part of the mold flip plate is linked with a flip drive component, and the flip drive component can drive the mold flip plate to rotate around the hinge point between the mold flip plate and the mold push plate. The mold push plate is linked with a first lifting drive component. When the first lifting drive component drives the mold push plate to move vertically, the mold flip plate follows the mold push plate to move vertically.

2. The automatic shoe mold opening device according to claim 1 is characterized in that: The first lifting drive assembly includes a mounting plate and a first drive source fixed on the mounting plate, the output end of the first drive source is linked to the mold push plate, both ends of the mold push plate are connected to top mold guide rods, the mounting plate is provided with a group of sliding holes corresponding to each group of top mold guide rods, the top mold guide rods are inserted into the sliding holes and the two are slidably matched.

3. The automatic shoe mold opening device according to claim 2 is characterized in that: The end of the top mold guide rod away from the mold push plate is linked to a guide rod connecting plate, and the flipping drive assembly includes a second driving source, the output end of the second driving source is linked to the mold flipping plate, and a first U-shaped hinge seat is provided on the guide rod connecting plate, and the body of the second driving source is rotatably connected to the first U-shaped hinge seat.

4. The automatic shoe mold opening device according to claim 3 is characterized in that: The output end of the second driving source is connected to a second U-shaped hinge seat, and a connecting block extending toward the side is provided in the middle of the mold flip plate. The connecting block is inserted into the middle of the second U-shaped hinge seat and the two are rotatably connected.

5. The automatic shoe mold opening device according to claim 4 is characterized in that: A strip groove for accommodating the mold flip plate runs through the middle of the mold push plate, and the hinge between the mold flip plate and the mold push plate is distributed at the inner end of the strip groove.

6. The automatic shoe mold opening device according to claim 3 is characterized in that: The guide rod connecting plate is provided with a first clearance hole corresponding to the first driving source.

7. The automatic shoe mold opening device according to claim 3 is characterized in that: The mounting plate is provided with a second clearance hole corresponding to the second driving source.

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