A mold opening and closing mechanism for a foaming mold

Abstract

The utility model relates to foaming mould technical field especially is involved in a kind of mould opening and closing mechanism of foaming mould, including chassis, the top of chassis is rotatably provided with bottom mould, the rotation driving element for driving bottom mould rotation is equipped in chassis, the top of chassis is also hinged with top frame, top frame is rotatably provided with top mould, hinge is connected between chassis and top frame and opens and closes driving element, and opens and closes driving element is used to drive top frame rotation to complete mould closing or mould opening, the front side of top frame is hinged with L type steel piece, the front side of chassis is equipped with recess for and L type steel piece cooperation, the top of top frame is equipped with L type steel piece driving element for driving L type steel piece rotation, the utility model is driven by the setting of opening and closing driving element, and top frame can be rotated to complete mould closing or mould opening, improve the speed of mould opening and closing, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of foaming mold technology, and in particular to an opening and closing mechanism for a foaming mold. Background Technology

[0002] Polyurethane, short for polyurethane, is a general term for macromolecular compounds whose main chain contains repeating urethane groups. It is formed by the addition polymerization of organic diisocyanates or polyisocyanates with dihydroxy or polyhydroxy compounds. Polyurethane materials have a wide range of applications. By changing the types and composition of raw materials, the form and properties of the product can be significantly altered, resulting in final products ranging from soft to hard, and applicable to many fields.

[0003] In the production of polyurethane foam tires, polyurethane foam material is poured into a metal mold placed on a workbench. A motor at the bottom of the workbench rotates the mold, generating centrifugal force to disperse the polyurethane foam within. Existing tire foam molds are opened and closed manually, resulting in high labor intensity for workers and slow mold opening and closing speeds, thus reducing production efficiency. Furthermore, existing tire foam molds have weak locking force after closing, allowing foam material to easily leak from the gaps in the mold, leading to resource waste. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A mold opening and closing mechanism for a foaming mold includes a base frame, a bottom mold rotatably mounted on the top of the base frame, a rotation drive for driving the bottom mold to rotate inside the base frame, a top frame hinged to the top of the base frame, a top mold rotatably mounted on the top frame, an opening and closing drive for hinged between the base frame and the top frame, the opening and closing drive for driving the top frame to rotate to complete mold closing or opening, an L-shaped steel piece hinged to the front side of the top frame, a groove for cooperating with the L-shaped steel piece on the front side of the base frame, and an L-shaped steel piece drive for driving the L-shaped steel piece to rotate on the top of the top frame.

[0006] As a further embodiment of this utility model: the opening and closing drive component includes a first cylinder, a first U-shaped mounting seat and a transmission plate. The first U-shaped mounting seat is located on the rear side of the base frame. The first cylinder is hinged in the first U-shaped mounting seat. One end of the transmission plate is connected to the top of the top frame, and the other end of the transmission plate is hinged to the piston rod of the first cylinder.

[0007] As a further embodiment of this utility model: two fixing plates are spaced apart at the bottom of the top frame, two L-shaped steel pieces are respectively hinged to the ends of the two fixing plates, and a connecting plate is provided between the vertical sections of the two L-shaped steel pieces.

[0008] As a further embodiment of this utility model, the number of grooves is two, and the two grooves are symmetrically arranged on the front side of the base frame.

[0009] As a further embodiment of this utility model: the L-shaped steel component driving component includes a second cylinder and a second U-shaped mounting seat. The second U-shaped mounting seat is located on the top of the top frame. The end of the second cylinder is hinged to the second U-shaped mounting seat. The piston rod of the second cylinder is hinged to the connecting plate.

[0010] As a further embodiment of this utility model: a mold-locking assembly is provided at the top of the base frame and the bottom of the top frame. The mold-locking assembly is used to restrict the rotation of the top mold and the bottom mold. The mold-locking assembly includes a fixing block, a first pneumatic gripper, a second pneumatic gripper, and two arc-shaped clamping plates. There are two fixing blocks, which are spaced apart. The first pneumatic gripper and the second pneumatic gripper are respectively disposed on the two fixing blocks. The first pneumatic gripper has a first clamping finger and a second clamping finger arranged in opposite directions. The second pneumatic gripper has a third clamping finger and a fourth clamping finger arranged in opposite directions. The two ends of one arc-shaped clamping plate are respectively connected to the first clamping finger and the third clamping finger, and the two ends of the other arc-shaped clamping plate are respectively connected to the second clamping finger and the fourth clamping finger.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the setting of the opening and closing drive component, can drive the top frame to rotate to complete the mold closing or opening, thereby increasing the speed of mold opening and closing and improving production efficiency.

[0013] 2. This utility model uses an L-shaped steel component driver, an L-shaped steel component and a groove. After the top mold and bottom mold are closed, the L-shaped steel component driver can drive the L-shaped steel component to rotate so that it hangs in the groove, thereby locking the top mold and bottom mold and preventing the foaming material from flowing out from the gap between the top mold and bottom mold.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2This is a schematic diagram of the first cylinder structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the first pneumatic gripper structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the arc-shaped clamping plate structure of this utility model.

[0020] In the diagram: 1. Base frame, 2. Bottom mold, 3. Rotation drive component, 4. Top frame, 5. Top mold, 6. L-shaped steel component, 7. Groove, 8. First cylinder, 9. First U-shaped mounting seat, 10. Transmission plate, 11. Fixing plate, 12. Transverse section, 13. Connecting plate, 14. Second cylinder, 15. Second U-shaped mounting seat, 16. Fixing block, 17. First pneumatic gripper, 18. Second pneumatic gripper, 19. Arc-shaped clamping plate, 20. First clamping finger, 21. Second clamping finger, 22. Third clamping finger, 23. Fourth clamping finger. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Please see Figures 1-4 In this embodiment of the present invention, a mold opening and closing mechanism for a foaming mold includes a base frame 1, a bottom mold 2 rotatably mounted on the top of the base frame 1, a rotation drive 3 for driving the bottom mold 2 to rotate inside the base frame 1, a top frame 4 hinged to the top of the base frame 1, a top mold 5 rotatably mounted on the top frame 4, an opening and closing drive 3 hinged between the base frame 1 and the top frame 4, the opening and closing drive 3 for driving the top frame 4 to rotate to complete mold closing or mold opening, an L-shaped steel piece 6 hinged to the front side of the top frame 4, a groove 7 for cooperating with the L-shaped steel piece 6 on the front side of the base frame 1, and an L-shaped steel piece drive 3 for driving the L-shaped steel piece 6 to rotate on the top of the top frame 4.

[0023] In use, the opening and closing drive unit drives the top frame 4 to rotate downwards to complete the mold closing. Then, the L-shaped steel part 6 is driven downwards by the L-shaped steel part 6 drive unit to hang it in the groove 7. Next, the operator pours polyurethane foam material into the mold cavity formed by the closing of the bottom mold 2 and the top mold 5. The rotation drive unit 3 drives the bottom mold 2 and the top mold 5 to rotate, generating centrifugal force to form the material in the mold cavity into a tire. After foaming is completed, the L-shaped steel part 6 drive unit drives the L-shaped steel part 6 to rotate upwards to disengage it from the groove 7. Then, the opening and closing drive unit drives the top frame 4 to rotate upwards to complete the mold opening, and the operator can then remove the tire.

[0024] The opening and closing drive component includes a first cylinder 8, a first U-shaped mounting base 9, and a transmission plate 10. The first U-shaped mounting base 9 is located on the rear side of the base frame 1. The first cylinder 8 is hinged inside the first U-shaped mounting base 9. One end of the transmission plate 10 is connected to the top of the top frame 4, and the other end of the transmission plate 10 is hinged to the piston rod of the first cylinder 8. In use, the extension and retraction of the piston rod of the first cylinder 8 drives the top frame 4 to rotate upward or downward through the transmission plate 10, thereby realizing mold closing or mold opening.

[0025] Two fixed plates 11 are spaced apart at the bottom of the top frame 4. Two L-shaped steel pieces 6 are hinged to the ends of the two fixed plates 11 respectively, and a connecting plate 13 is provided between the vertical sections of the two L-shaped steel pieces 6. There are two grooves 7, which are symmetrically arranged on the front side of the base frame 1. In use, the L-shaped steel pieces 6 are driven to rotate upward or downward by the L-shaped steel piece drive, thereby causing the transverse section 12 of the L-shaped steel pieces 6 to extend into or disengage from the grooves 7, so as to lock or unlock the top mold 5 and the bottom mold 2.

[0026] The L-shaped steel component drive unit includes a second cylinder 14 and a second U-shaped mounting base 15. The second U-shaped mounting base 15 is located on the top of the top frame 4. The end of the second cylinder 14 is hinged to the second U-shaped mounting base 15. The piston rod of the second cylinder 14 is also hinged to the connecting plate 13. In use, the extension and retraction of the piston rod of the second cylinder 14 drives the connecting plate 13 to rotate upward or downward, thereby driving the L-shaped steel component 6 to rotate upward or downward.

[0027] Both the top of the base frame 1 and the bottom of the top frame 4 are equipped with mold-locking assemblies. The mold-locking assemblies are used to restrict the rotation of the top mold 5 and the bottom mold 2. The mold-locking assemblies include a fixing block 16, a first pneumatic gripper 17, a second pneumatic gripper 18 and two arc-shaped clamping plates 19. There are two fixing blocks 16, which are spaced apart. The first pneumatic gripper 17 and the second pneumatic gripper 18 are respectively mounted on the two fixing blocks 16. The first pneumatic gripper 17 has a first gripping finger 20 and a second gripping finger 21 facing each other. The second pneumatic gripper 18 has a third gripping finger 22 and a fourth gripping finger 23 facing each other. The two ends of one arc-shaped clamping plate 19 are connected to the first gripping finger 20 and the third gripping finger 22 respectively. The two ends of the other arc-shaped clamping plate 19 are connected to the second gripping finger 21 and the fourth gripping finger 23 respectively. During the foaming process, the two arc-shaped clamping plates 19 are far away from the top mold 5 and the bottom mold 2, and do not restrict the rotation of the top mold 5 and the bottom mold 2. After the foaming is completed, the first pneumatic clamping claw 17 and the second pneumatic clamping claw 18 drive the two arc-shaped clamping plates 19 to move closer to each other, thereby fixing the top mold 5 and the bottom mold 2 to restrict the rotation of the top mold 5 and the bottom mold 2, so that the workers can take the tire out of the mold.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A mold opening and closing mechanism for a foaming mold, characterized in that, The system includes a base frame, a bottom mold rotatably mounted on the top of the base frame, a rotation drive for driving the bottom mold to rotate inside the base frame, a top frame hinged to the top of the base frame, a top mold rotatably mounted on the top frame, an opening and closing drive hinged between the base frame and the top frame, the opening and closing drive for driving the top frame to rotate to complete mold closing or opening, an L-shaped steel piece hinged to the front of the top frame, a groove for cooperating with the L-shaped steel piece on the front of the base frame, and an L-shaped steel piece drive for driving the L-shaped steel piece to rotate on the top of the top frame.

2. The mold opening and closing mechanism of a foaming mold according to claim 1, characterized in that, The opening and closing drive component includes a first cylinder, a first U-shaped mounting base, and a transmission plate. The first U-shaped mounting base is located on the rear side of the base frame. The first cylinder is hinged inside the first U-shaped mounting base. One end of the transmission plate is connected to the top of the top frame, and the other end of the transmission plate is hinged to the piston rod of the first cylinder.

3. The mold opening and closing mechanism of a foaming mold according to claim 1, characterized in that, The bottom of the top frame is provided with two fixed plates at intervals. Two L-shaped steel pieces are respectively hinged to the ends of the two fixed plates, and a connecting plate is provided between the vertical sections of the two L-shaped steel pieces.

4. The mold opening and closing mechanism of a foaming mold according to claim 1, characterized in that, There are two grooves, which are symmetrically arranged on the front side of the base frame.

5. The mold opening and closing mechanism of a foaming mold according to claim 3, characterized in that, The L-shaped steel component drive unit includes a second cylinder and a second U-shaped mounting seat. The second U-shaped mounting seat is located on the top of the top frame. The end of the second cylinder is hinged to the second U-shaped mounting seat. The piston rod of the second cylinder and the connecting plate are hinged together.

6. The mold opening and closing mechanism of a foaming mold according to claim 1, characterized in that, Both the top of the base frame and the bottom of the top frame are equipped with mold-locking assemblies. The mold-locking assemblies are used to restrict the rotation of the top mold and the bottom mold. The mold-locking assemblies include fixed blocks, a first pneumatic gripper, a second pneumatic gripper, and two arc-shaped clamping plates. There are two fixed blocks, which are spaced apart. The first pneumatic gripper and the second pneumatic gripper are respectively mounted on the two fixed blocks. The first pneumatic gripper has a first clamping finger and a second clamping finger facing each other. The second pneumatic gripper has a third clamping finger and a fourth clamping finger facing each other. The two ends of one arc-shaped clamping plate are connected to the first clamping finger and the third clamping finger, respectively. The two ends of the other arc-shaped clamping plate are connected to the second clamping finger and the fourth clamping finger, respectively.

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