Die

Abstract

A die belongs to the technical field of dies. The mold comprises a mold frame, and an upper mold, a lower mold, an air cylinder lifting mechanism and a safety locking mechanism which are arranged on the mold frame. Wherein the air cylinder lifting mechanism is located above the lower die, the upper die is connected with the die frame through the air cylinder lifting mechanism, and the air cylinder lifting mechanism drives the upper die to ascend and descend to get away from or get close to the lower die; and when the air cylinder lifting mechanism drives the upper die to rise to a set position in the direction away from the lower die, the safety locking mechanism is clamped with the upper die. According to the die, the air cylinder lifting mechanism is used for driving the upper die to ascend and descend, and compared with an oil press, the air cylinder lifting mechanism has the advantages of being low in manufacturing cost, small in one-time investment, low in production site requirement and convenient to transfer and produce. And moreover, the safety locking mechanism is arranged on the mold frame, after the air cylinder lifting mechanism drives the upper mold to ascend to a set position, the safety locking mechanism can be connected with the upper mold in a clamped mode, and safety is improved.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a mold. Background Art

[0002] In the process production of commercial vehicle overhead box products, molds are usually required. Workers lay PU leather and reinforcing felt on the lower mold, and then the robot sprays the polyurethane material on the lower mold according to a certain trajectory. Then the upper platform of the hydraulic press drives the upper mold to press down to complete the mold closing and maintain the pressure for a certain period of time. After the pressure is maintained, the mold is opened to take out the product, and then the above steps are repeated.

[0003] However, the existing molds usually use a hydraulic press to drive the upper platform to move up and down. The hydraulic press equipment is expensive and requires a large one-time investment. The hydraulic press equipment has high requirements for the production site and requires professional manufacturers to install and debug. It is difficult to transfer the production site. In addition, after the upper mold of the existing mold rises, if the hydraulic press fails, the upper platform and the upper mold will fall down, which is prone to safety accidents. Utility Model Content

[0004] Based on the above-mentioned deficiencies, the present application provides a mold to improve the problems of high cost, complex installation and debugging, and low safety of the mold in the related art.

[0005] This application is implemented as follows:

[0006] The example of the present application provides a mold, including a mold frame, and an upper mold, a lower mold, a cylinder lifting mechanism and a safety locking mechanism arranged on the mold frame. The cylinder lifting mechanism is located above the lower mold, and the upper mold is connected to the mold frame through the cylinder lifting mechanism. The cylinder lifting mechanism drives the upper mold to move up and down to move away from or close to the lower mold; when the cylinder lifting mechanism drives the upper mold to rise in a direction away from the lower mold to a set position, the safety locking mechanism is engaged with the upper mold.

[0007] In the above implementation process, the cylinder lifting mechanism is used to drive the upper mold to lift and lower. Compared with the hydraulic press, the cylinder lifting mechanism has the advantages of low cost, small one-time investment, low production site requirements and convenient production transfer. In addition, a safety locking mechanism is provided on the mold frame. When the cylinder lifting mechanism drives the upper mold to rise to the set position, the safety locking mechanism can be engaged with the upper mold. If the cylinder lifting mechanism fails, the safety locking mechanism can limit the lower mold from falling downward, thereby improving safety.

[0008] In an optional embodiment, the safety locking mechanism includes a clamping ring and a clamping block, the clamping ring is arranged on the mold frame, the clamping block is arranged on the upper mold, and the clamping block can be selectively extended into the clamping ring.

[0009] In the above implementation process, a clamping block is set at the upper die. When the upper die rises to a set position, the clamping block can be clamped with a clamping ring to limit the upper die and reduce the probability of the upper die falling.

[0010] In an optional embodiment, the mold frame includes a guide column, the extension direction of the guide column is consistent with the movement direction of the cylinder lifting mechanism. The mold also includes a guide mechanism, the guide mechanism is fixedly connected to the upper mold, and the guide mechanism is slidably connected to the guide column.

[0011] In the above implementation process, a guide mechanism is provided at the upper die. When the upper die is lifted or lowered by the cylinder lifting mechanism, the guide mechanism can slide along the guide column, thereby improving the stability of the lifting movement of the upper die.

[0012] In an optional embodiment, the clamping ring is arranged on the guide column, and the clamping block is arranged on the guide mechanism.

[0013] In the above implementation process, a retaining ring is set on the guide column. When the guide mechanism rises along the guide column to the position of the retaining ring, the retaining ring can be used to engage with the clamping block set at the guide mechanism to limit the guide column from sliding downward, thereby reducing the probability of the upper mold falling.

[0014] In combination with the first aspect, in an optional embodiment, the guide column includes a first column and a second column arranged at an interval, the guide mechanism is slidably connected to the first column and the second column at the same time, and the clamping block extends into the gap between the first column and the second column; the safety locking mechanism includes a connecting rod, the axial ends of the connecting rod are respectively rotatably connected to the first column and the second column, and the clamping ring is arranged in the middle of the connecting rod; when the guide mechanism rises to the set position, the connecting rod rotates so that the clamping ring is sleeved outside the clamping block.

[0015] In the above implementation process, a clamping ring is arranged between the first column and the second column, and the clamping ring can rotate with the rotation of the connecting rod. When the guide mechanism moves to the bottom of the clamping ring, the connecting rod can be rotated to make the clamping ring away from the block, so that the block, the guiding mechanism and the upper mold can continue to move upward to the set position. After the upper mold moves to the set position, the clamping ring can be rotated to make the clamping ring close to the block, so that the block extends into the clamping ring for clamping. Due to the limitation of the bottom wall of the clamping ring, the block cannot pass through the bottom wall of the clamping ring and fall down. When it is necessary to close the mold to make the lower mold move downward, the connecting rod can be rotated again to make the clamping ring away from the block, and then the cylinder lifting mechanism is used to drive the lower mold and the guiding mechanism to move downward.

[0016] In an optional embodiment, the upper end of the clamping block is configured as an arc surface concave toward the lower mold, and when the clamping block moves upward along with the guide mechanism in a direction away from the lower mold, the arc surface can abut the bottom end of the clamping ring to push the clamping ring to rotate until the clamping block extends into the clamping ring.

[0017] In the above implementation process, the upper end of the clamping block is provided with an arc surface. When the clamping block moves upward to abut the bottom end of the clamping ring, a thrust is applied to the clamping ring, causing the clamping ring and the connecting rod to rotate, so that the clamping block can continue to move upward to a set position corresponding to the hollow portion of the clamping ring. After the clamping block moves to the set position, the abutment between the clamping block and the clamping ring disappears, and the clamping ring can rotate under the action of gravity and be sleeved outside the clamping block. During the ascending process of the upper mold, there is no need to manually rotate the connecting rod, and the connecting rod can automatically rotate to achieve the clamping connection between the clamping ring and the clamping block.

[0018] In an optional embodiment, the guide mechanism includes a plurality of rollers, and the plurality of rollers are rollingly connected to the first column and the second column respectively.

[0019] In combination with the first aspect, in an optional embodiment, the first column and the second column are located on the periphery of the upper mold, the first column and the second column are in a rectangular structure, the first column has a first surface facing the second column and a second surface facing the upper mold, the second column has a third surface facing the first column and a fourth surface facing the upper mold, and a plurality of rollers are respectively rollingly connected to the first surface, the second surface, the third surface and the fourth surface.

[0020] In the above implementation process, rollers are arranged on both surfaces of the first column and the second column of the rectangular parallelepiped structure, which can improve the lifting stability.

[0021] In an optional embodiment, both ends of the upper mold are provided with guiding mechanisms, the mold frame is provided with two groups of first columns and second columns arranged opposite to each other, each group of first columns and second columns is provided with connecting rods and clamping rings; the mold frame is provided with a swing arm; each connecting rod is connected to a pull rod, and the two pull rods are respectively connected to the two ends of the swing arm, so that the two connecting rods can rotate synchronously in opposite directions, so that the two clamping rings can be synchronously withdrawn or clamped in the clamping block.

[0022] In the above implementation process, guide mechanisms and safety locking mechanisms are provided at both ends of the upper mold, which can further improve the stability and safety of the upper mold. The two connecting rods are connected through a pull rod and a swing arm transmission. When the mold needs to be closed to move the lower mold downward, one of the connecting rods can be rotated, and the pull rod and the swing arm can be used to pull the other connecting rod to rotate synchronously in the opposite direction, so that the two clamping rings can be synchronously withdrawn from the clamping block.

[0023] In an optional embodiment, the mold also includes a locking mechanism, which includes a hook located at the lower mold and a matching hole located at the upper mold that matches the hook; the hook is connected to a connecting arm, the connecting arm is hinged to the lower mold, and the end of the connecting arm away from the hook is connected to the output end of the locking cylinder, and the locking cylinder can be selectively extended and retracted to drive the hook to rotate, so that the hook is hung on the matching hole or exits the matching hole.

[0024] In the above implementation process, a matching hole is provided at the upper mold, and a hook is provided at the lower mold. When the mold needs to be closed, the retraction of the mold locking cylinder can be used to drive one end of the connecting arm to swing downward, so that the other end of the connecting arm drives the hook to swing upward, so that the hook can be tilted upward and hung on the matching hole. Similarly, when the mold needs to be opened, the mold locking cylinder can be extended to drive one end of the connecting arm to swing upward, so that the other end of the connecting arm drives the hook to swing downward, so that the hook is separated from the matching hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0026] Figure 1 A schematic diagram of the structure of the mold provided for this application example;

[0027] Figure 2 A schematic plan view of a mold provided for this application example;

[0028] Figure 3 A schematic diagram of the clamping connection between the clamping block and the clamping ring provided in the example of this application;

[0029] Figure 4 A schematic diagram of the structure of the clamping mechanism provided for this application example.

[0030] Icons: 1-mold; 10-mold frame; 11-guide column; 111-first column; 112-second column; 20-upper mold; 30-lower mold; 40-cylinder lifting mechanism; 50-safety locking mechanism; 51-clamping ring; 52-block; 53-connecting rod; 54-swing arm; 55-pull rod; 56-connecting support rod; 57-handle; 60-guide mechanism; 61-roller; 70-locking mechanism; 71-hook; 72-matching hole; 73-connecting arm; 74-locking cylinder. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0033] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "up", "down", "left", "right", "bottom", "top", and "inside" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description. They do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0036] See also Figure 1 and Figure 2 The present application example provides a mold 1, including a mold frame 10, and an upper mold 20, a lower mold 30, a cylinder lifting mechanism 40 and a safety locking mechanism 50 arranged on the mold frame 10.

[0037] The cylinder lifting mechanism 40 is located above the lower mold 30, and the upper mold 20 is connected to the mold frame 10 through the cylinder lifting mechanism 40. The cylinder lifting mechanism 40 drives the upper mold 20 to move up and down to move away from or close to the lower mold 30.

[0038] When the cylinder lifting mechanism 40 drives the upper die 20 to rise to a set position in a direction away from the lower die 30 , the safety locking mechanism 50 is engaged with the upper die 20 .

[0039] The present application does not limit the specific structure of the mold frame 10. In some possible embodiments, please continue to refer to Figure 1 The mold frame 10 includes two groups of first columns 111 and second columns 112, and the two groups of first columns 111 and second columns 112 are connected by top beams and bottom beams to form a rectangular frame structure.

[0040] Furthermore, in order to facilitate setting the lower mold 30 on the mold frame 10, in some possible embodiments, a plurality of lower support beams can be provided at the bottom of the rectangular parallelepiped frame, and the lower mold 30 can be fixed on the support beams.

[0041] Furthermore, in order to improve the stability of the lower mold 30 , in some possible embodiments, an I-shaped frame may be provided between the outer wall of the lower mold 30 and the first column 111 and the second column 112 .

[0042] Furthermore, in order to facilitate the arrangement of the cylinder lifting mechanism 40 above the lower mold 30, in some possible embodiments, multiple upper support beams can be arranged on the top of the rectangular frame, and the cylinder lifting mechanism 40 can be fixed on the support beams. At the same time, the output shaft of the cylinder lifting mechanism 40 can pass downward through the gaps between the multiple upper support beams, so that the output shaft can be connected to the upper mold 20 and drive the upper mold 20 to move up and down.

[0043] The upper mold 20 and the lower mold 30 can cooperate with each other to shape the raw material placed between the upper mold 20 and the lower mold 30 into a set structure.

[0044] Exemplarily, the lower mold 30 is a concave mold, provided with a cavity for placing the raw material, and the upper mold 20 is a convex mold, provided with a convex block that can extend into the cavity.

[0045] Exemplarily, the surface of the protrusion of the upper mold 20 and the inner wall of the cavity of the lower mold 30 may be provided with corresponding textures.

[0046] In some possible embodiments, the upper mold 20 is detachably fixedly connected to the output shaft of the cylinder lifting mechanism 40 .

[0047] Exemplarily, a mounting plate can be provided on the side of the upper mold 20 facing away from the lower mold 30, and two oppositely disposed mounting seats can be provided on the mounting plate. The two mounting seats are connected by a connecting column, and a connecting sleeve is provided on the outer sleeve of the connecting column. The connecting sleeve can be threadedly connected to the output shaft of the cylinder lifting mechanism 40 or plugged by a pin.

[0048] Further, in order to improve the stability of the lifting movement of the upper mold 20, in some possible embodiments, please continue to refer to Figure 1 and Figure 2 The mold 1 also includes a guiding mechanism 60.

[0049] The guide mechanism 60 is fixedly connected to the upper mold 20 , and is slidably connected to the guide column 11 of the mold frame 10 .

[0050] Exemplarily, the guide column 11 includes a first column 111 and a second column 112 , and the guide mechanism 60 is slidably connected to the first column 111 and the second column 112 at the same time.

[0051] Exemplarily, the guide mechanism 60 may be provided with two sets of guide mechanisms 60, the two sets of guide mechanisms 60 are respectively fixedly connected to the left and right ends of the upper mold 20, and the two sets of guide mechanisms 60 are slidably connected to the two sets of first columns 111 and second columns 112 in a one-to-one correspondence. The two sets of first columns 111 and second columns 112 are located at the periphery of the upper mold 20 and the guide mechanism 60.

[0052] In some possible embodiments, each set of guide mechanisms 60 is provided with a plurality of rollers 61 , and the rollers 61 are slidably connected to the guide posts 11 .

[0053] Exemplarily, the guide mechanism 60 further includes a connecting frame, and the roller 61 is disposed on the connecting frame.

[0054] In a possible embodiment, the first column 111 and the second column 112 are in a rectangular parallelepiped structure. The first column 111 has a first surface facing the second column 112 and a second surface facing the upper mold 20, and the second column 112 has a third surface facing the first column 111 and a fourth surface facing the upper mold 20. Rollers 61 are provided on the first surface, the second surface, the third surface, and the fourth surface.

[0055] Exemplarily, the connecting frame has a first end close to the first column 111, and a second end close to the second column 112. The first end is provided with a first L-shaped angle frame, and the first angle frame is provided with two upper and lower rollers 61 at intervals on the side facing the first surface, which are used for sliding connection with the first surface; the first angle frame is provided with two upper and lower rollers 61 at intervals on the side facing the second surface, which are used for sliding connection with the second surface.

[0056] Similarly, a second L-shaped angle bracket is also provided at the second end, and two upper and lower rollers 61 are spaced apart on the side of the second angle bracket facing the third surface for sliding connection with the third surface; two upper and lower rollers 61 are spaced apart on the side of the second angle bracket facing the fourth surface for sliding connection with the fourth surface.

[0057] The safety locking mechanism 50 is used to engage with the upper mold 20 after the upper mold 20 rises to a set position, limit the upper mold 20, and reduce the probability of the upper mold 20 falling accidentally.

[0058] For some possible embodiments, please refer to Figure 1 and Figure 2 The safety locking mechanism 50 includes a clamping ring 51 and a clamping block 52 that cooperate with each other. The clamping block 52 is connected to the upper mold 20, and the clamping ring 51 is set on the mold frame 10. When the cylinder lifting mechanism 40 drives the upper mold 20 to rise to a set position in a direction away from the lower mold 30, the clamping block 52 can extend into the clamping ring 51 for clamping.

[0059] The schematic diagram of the clamping block 52 extending into the clamping ring 51 for clamping is shown in FIG. Figure 3 .

[0060] Furthermore, in some possible embodiments, the clamping ring 51 can be disposed on the guide column 11, and the clamping block 52 can be disposed on the side of the guide mechanism 60 facing the guide column 11. When the guide mechanism 60 is raised to a set position along the guide column 11 under the action of the cylinder lifting mechanism 40, the clamping block 52 can extend into the clamping ring 51 disposed on the guide column 11 for clamping.

[0061] For further information, see Figure 1 In order to facilitate the clamping of the clamping ring 51 to the clamping block 52 and the withdrawal of the clamping block 52, in some possible embodiments, the clamping ring 51 can be hinged to the guide column 11. When the guide mechanism 60 rises to the set position along the guide column 11, the clamping ring 51 can be rotated to be sleeved outside the clamping block 52. When the mold needs to be closed to make the upper mold 20 move downward, the clamping ring 51 can be rotated again to make the clamping ring 51 away from the clamping block 52, and the clamping block 52 withdraws from the clamping ring 51, and then the cylinder lifting mechanism 40 is used to drive the upper mold 20 and the guide mechanism 60 to move downward.

[0062] For example, please refer to Figure 1 , the block 52 can be arranged on the side of the connecting frame of the guide mechanism 60 facing the guide column 11, and the block 52 can be extended into the gap between the first column 111 and the second column 112 in the guide column 11. When the guide mechanism 60 slides along the guide column 11, the block 52 moves up and down in the gap. The safety locking mechanism 50 also includes a connecting rod 53. The two axial ends of the connecting rod 53 are respectively rotatably connected to the first column 111 and the second column 112, and the top of the snap ring 51 is connected to the middle part of the connecting rod 53. When the block 52 rises to the lower end of the snap ring 51 along the guide mechanism 60, the snap ring 51 can be rotated in the first direction to make the snap ring 51 away from the block 52, so that the block 52 can continue to rise to a position corresponding to the hollow part of the snap ring 51, and then the snap ring 51 is rotated again in the opposite direction of the first direction so that the snap ring 51 is sleeved outside the block 52. The left and right ends of the upper mold 20 are both provided with corresponding guide mechanisms 60 and safety locking mechanisms 50. The left and right ends of the upper mold 20 are simultaneously connected by the clamping block 52 and the clamping ring 51 to achieve the limit protection of the upper mold 20. When the mold needs to be closed to move the upper mold 20 downward, the clamping ring 51 can be rotated again in the first direction to keep the clamping ring 51 away from the clamping block 52.

[0063] Further, in order to facilitate the upward movement of the clamping block 52, the clamping ring 51 can be automatically mounted on the clamping block 52. In some possible embodiments, please continue to refer to Figure 1-Figure 3 , the top end of the block 52 can be set to be an arc surface concave toward the lower mold 30.

[0064] When the block 52 rises to the bottom end of the snap ring 51 along with the guide mechanism 60, the arc surface of the block 52 can abut against the bottom end of the snap ring 51. During the rising process of the block 52, the block 52 will apply a thrust to the snap ring 51. Since the top of the block 52 is an arc surface and the snap ring 51 can rotate along the connecting rod 53, the snap ring 51 can rotate along the arc surface under the action of the thrust. When the block 52 continues to rise to the hollow portion corresponding to the snap ring 51, the abutment between the block 52 and the snap ring 51 disappears, and the snap ring 51 can rotate in the direction close to the block 52 under the action of gravity, and then be sleeved outside the block 52 to achieve automatic clamping.

[0065] When the mold needs to be closed to move the upper mold 20 downward, the connecting rods 53 at the left and right ends can be rotated respectively. The connecting rods 53 at the left and right ends rotate in opposite directions, so that the two clamping rings 51 are removed from the clamping block 52.

[0066] For example, please continue to combine Figure 1 and Figure 2 When the clamping ring 51 on the left side of the upper mold 20 needs to be removed from the block 52 on the left side, the connecting rod 53 can be rotated clockwise to move the clamping ring 51 on the left side away from the block 52 on the left side. When the clamping ring 51 on the right side of the upper mold 20 needs to be removed from the block 52 on the right side, the connecting rod 53 can be rotated counterclockwise to move the clamping ring 51 on the right side away from the block 52 on the right side.

[0067] Further, in order to facilitate the simultaneous rotation of the two connecting rods 53 so that the clamping rings 51 on the left and right sides can be synchronously withdrawn from the corresponding clamping blocks 52, in some possible embodiments, please continue to refer to Figure 2 , a swing arm 54 can be provided at the top crossbeam of the mold frame 10. Both ends of the swing arm 54 can swing left and right around the connection fulcrum between the swing arm 54 and the mold frame 10. Exemplarily, when the top end of the swing arm 54 swings left around the connection fulcrum, the bottom end of the swing arm 54 swings right around the connection fulcrum at the same time.

[0068] A pull rod 55 is connected to each connecting rod 53 , and the two pull rods 55 are respectively connected to two ends of the swing arm 54 .

[0069] For example, please combine Figure 2 When the left connecting rod 53 is rotated clockwise, the left connecting rod 53 can push one end of the swing arm 54 to the right through the left pull rod 55, and the other end of the swing arm 54 will swing to the left, thereby pulling the right pull rod 55 to the left. The right pull rod 55 moves to the left, pulling the right connecting rod 53 to rotate counterclockwise, thereby causing the right clamping ring 51 to withdraw from the right clamping block 52.

[0070] Furthermore, in order to facilitate the connection between the connecting rod 53 and the pull rod 55, in a possible embodiment, a connecting support rod 56 may be provided on one side of each connecting rod 53, and the pull rod 55 and the connecting support rod 56 may be rotatably connected.

[0071] Furthermore, in order to facilitate the operator to rotate the connecting rod 53 , in a possible embodiment, a handle 57 may be provided on the other side of each connecting rod 53 away from the connecting support rod 56 .

[0072] Furthermore, the mold 1 provided in the example of the present application is also provided with a clamping mechanism 70 .

[0073] Please combine Figure 1 and Figure 4 The mold clamping mechanism 70 includes a hook 71 located on the lower mold 30 and a matching hole 72 located on the upper mold 20 and matched with the hook 71. The hook 71 is connected to a connecting arm 73, and the connecting arm 73 is hinged to the lower mold 30. One end of the connecting arm 73 away from the hook 71 is connected to the output end of the mold clamping cylinder 74, and the mold clamping cylinder 74 can be selectively extended to drive the hook 71 to rotate, so that the hook 71 is hung on the matching hole 72 or exits the matching hole 72.

[0074] For example, please continue to combine Figure 4 When the mold needs to be closed, the mold locking cylinder 74 can be retracted to drive one end of the connecting arm 73 to rotate downward, so that the other end of the connecting arm 73 drives the hook 71 to rotate upward, and then the hook 71 is tilted upward to hook the matching hole 72 to achieve mold locking.

[0075] When the mold needs to be opened, the mold locking cylinder 74 can be extended to drive one end of the connecting arm 73 to rotate upward, so that the other end of the connecting arm 73 drives the hook 71 to rotate downward, so that the hook 71 withdraws from the matching hole 72 to achieve mold opening.

[0076] Furthermore, corresponding pads may be provided at the outer walls of the upper mold 20 and the lower mold, and the mold locking mechanism 70 may be provided at the pads.

[0077] Exemplarily, an upper pad is provided at the upper mold 20, and the upper pad extends a certain distance from the outer wall of the upper mold 20. A first mounting plate is provided at one end of the upper pad away from the outer wall of the upper mold 20, and a matching hole 72 is provided at the bottom of the first mounting plate facing the lower mold 30. The hook 71 can be hung on the hole wall of the matching hole. Further, an opening is provided on one side of the matching hole 72 close to the lower mold 30, and the two ends of the opening are connected by a cylindrical crossbeam, and the hook 71 can be hung on the crossbeam.

[0078] A lower pad is provided at the lower mold 30. The lower pad extends a certain distance from the outer wall of the lower mold 30. A second mounting plate is provided at one end of the lower pad away from the outer wall of the lower mold 30, and a bracket is provided at one end of the second mounting plate facing the upper mold 20. The middle part of the connecting arm 73 is rotatably connected to the crossbeam of the bracket, and the hook 71 is tilted upward. The hook 71 can rotate between the first mounting plate and the upper mold 20 and hang on the crossbeam at the matching hole 72.

[0079] The clamping cylinder 74 is mounted on the mounting plate, and the output end of the clamping cylinder 74 is rotatably connected to the end of the connecting arm 73 away from the hook 71. The fixed end of the clamping cylinder 74 is rotatably connected to the mounting plate.

[0080] The working principle of the mold 1 provided in this application example is as follows:

[0081] When the mold 1 provided in the example of the present application is used to produce a commercial vehicle overhead box, the cylinder lifting mechanism 40 is used to drive the upper mold 20 and the guide mechanism 60 to move upward, and the roller 61 of the guide mechanism 60 rolls along the surface of the guide column 11. When the arc surface of the clamping block 52 to be set at the guide mechanism 60 abuts against the clamping ring 51 and continues to move upward, the clamping ring 51 and the connecting rod 53 can rotate upward. As the clamping block 52 continues to rise, when the clamping block 52 rises to a position corresponding to the hollow part of the clamping ring 51, the abutment between the clamping block 52 and the clamping ring 51 disappears, and the clamping ring 51 can rotate downward under the action of gravity. The clamping ring 51 is sleeved outside the clamping block 52 for clamping, and the cylinder lifting mechanism 40 stops the rising work.

[0082] Then, the raw materials for producing the elevated box of commercial vehicles, such as PU leather and reinforcement adhesive, can be laid in the cavity of the lower mold 30, and then the polyurethane material can be sprayed on the raw materials in the cavity of the lower mold 30 according to a certain trajectory by a robot. Then, the handle 57 at one of the connecting rods 53 is manually rotated to rotate the two clamping rings 51 out of the corresponding clamping block 52.

[0083] Then, the cylinder lifting mechanism 40 is started to move the upper mold 20 downward to press on the lower mold 30, and the cylinder lifting mechanism 40 stops descending.

[0084] Afterwards, the locking cylinder 74 is started and retracted, driving one end of the connecting arm 73 to swing downward, so that the other end of the connecting arm 73 drives the hook 71 to rotate upward, so that the hook 71 is tilted upward and hung on the matching hole 72 of the upper mold 20 to achieve locking.

[0085] After holding the pressure for a certain period of time, the extension of the mold locking cylinder 74 drives one end of the connecting arm 73 to swing upward, so that the other end of the connecting arm 73 drives the hook 71 to rotate downward and exit the matching hole 72, thereby realizing mold opening. Then, the cylinder lifting mechanism 40 drives the upper mold 20 and the guide mechanism 60 to move upward, and this cycle is repeated.

[0086] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mold, characterized in that: It includes a mold frame, and an upper mold, a lower mold, a cylinder lifting mechanism and a safety locking mechanism arranged on the mold frame; wherein the cylinder lifting mechanism is located above the lower mold, the upper mold is connected to the mold frame through the cylinder lifting mechanism, and the cylinder lifting mechanism drives the upper mold to move up and down to move away from or close to the lower mold; when the cylinder lifting mechanism drives the upper mold to rise to a set position in a direction away from the lower mold, the safety locking mechanism is engaged with the upper mold.

2. The mold according to claim 1, characterized in that: The safety locking mechanism comprises a clamping ring and a clamping block, wherein the clamping ring is arranged on the mold frame, and the clamping block is arranged on the upper mold, and the clamping block can be selectively extended into the clamping ring.

3. The mold according to claim 2, characterized in that: The mold frame includes a guide column, and the extension direction of the guide column is consistent with the lifting direction of the cylinder lifting mechanism; The mold further comprises a guide mechanism, wherein the guide mechanism is fixedly connected to the upper mold and is slidably connected to the guide column.

4. The mold according to claim 3, characterized in that: The clamping ring is arranged on the guide column, and the clamping block is arranged on the guide mechanism.

5. The mold according to claim 4, characterized in that: The guide column comprises a first column and a second column arranged at an interval, the guide mechanism is slidably connected to the first column and the second column at the same time, and the clamping block extends into the gap between the first column and the second column; The safety locking mechanism includes a connecting rod, the two axial ends of the connecting rod are respectively rotatably connected to the first column and the second column, and the snap ring is arranged in the middle of the connecting rod; when the guide mechanism rises to the set position, the connecting rod rotates so that the snap ring is sleeved outside the clamping block.

6. The mold according to claim 5, characterized in that: The top end of the clamping block is configured as an arc surface concave toward the lower mold, and when the clamping block moves upward along with the guide mechanism in a direction away from the lower mold, the arc surface can abut against the bottom end of the clamping ring to push the clamping ring to rotate until the clamping block extends into the clamping ring.

7. The mold according to claim 6, characterized in that: The guide mechanism includes a plurality of rollers, and the plurality of rollers are respectively connected in a rolling manner to the first column and the second column.

8. The mold according to claim 7, characterized in that: The first column and the second column are located at the periphery of the upper mold, and the first column and the second column are in a rectangular structure. The first column has a first surface facing the second column and a second surface facing the upper mold, and the second column has a third surface facing the first column and a fourth surface facing the upper mold. The plurality of rollers are respectively rollingly connected to the first surface, the second surface, the third surface and the fourth surface.

9. The mold according to any one of claims 5 to 8, characterized in that: Both ends of the upper mold are provided with the guide mechanism, the mold frame is provided with two groups of the first columns and the second columns which are arranged opposite to each other, and each group of the first columns and the second columns is provided with the connecting rod and the clamping ring; The mold frame is provided with a swing arm; each of the connecting rods is connected to a pull rod, and the two pull rods are respectively connected to the two ends of the swing arm, so that the two connecting rods can rotate synchronously in opposite directions, so that the two clamping rings can be synchronously withdrawn or clamped in the clamping block.

10. The mold according to claim 1, characterized in that: The mold further comprises a mold locking mechanism, wherein the mold locking mechanism comprises a hook located at the lower mold and a matching hole located at the upper mold and matching with the hook; The hook is connected to a connecting arm, which is hinged to the lower mold. One end of the connecting arm away from the hook is connected to the output end of the locking cylinder. The locking cylinder can be selectively extended to drive the hook to rotate, so that the hook is hung on the matching hole or withdrawn from the matching hole.

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