Mold changing mechanism for foam molding mold

Abstract

The utility model provides a kind of foaming forming die die changing cooperation mechanism, including die changing device, foaming mould box and mould box clamp, mould box clamp includes upper clamp and lower clamp, foaming mould box includes upper die and lower die, first lock pin connecting mechanism and second lock pin connecting mechanism are respectively equipped between upper clamp and upper die and between lower clamp and lower die, die changing device includes device frame, device frame is also equipped with die changing assembly, first lock pin connecting mechanism and second lock pin connecting mechanism both have locking connection state and unlocking separation state, when being in locking connection state, upper clamp and upper die, lower clamp and lower die are connected as a whole, when being in unlocking separation state, upper clamp and upper die, lower clamp and lower die are disconnected, die changing assembly can drive first lock pin connecting mechanism and second lock pin connecting mechanism synchronous switching between locking connection state and unlocking separation state. The utility model can save artificial cost, improve die changing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of foaming mold equipment design technology, specifically relating to a foaming molding mold changing and matching mechanism. Background Technology

[0002] Currently in the door foaming industry, molds and mold boxes are mostly fixed by bolts. When customers need to change the mold, they have to manually tighten and loosen the bolts, which wastes a lot of manpower, material resources and time. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to provide a mold changing mechanism for foaming molding, which can overcome the technical problem of the prior art that wastes manpower, material resources and time by manually tightening and loosening bolts when the mold needs to be changed.

[0004] To address the aforementioned problems, this utility model provides a mold changing and fitting mechanism for foaming molding dies, including a mold changing device, a foaming mold box, and a mold box clamp for holding the foaming mold box. The mold box clamp includes an upper clamp and a lower clamp, and the foaming mold box includes an upper mold and a lower mold, which are interlocked vertically. A first locking pin connection mechanism is provided between the upper clamp and the upper mold, and a second locking pin connection mechanism is provided between the lower clamp and the lower mold. The mold changing device includes a device frame, and the foaming mold box and the mold box clamp can be supported and positioned within the device. On the support platform of the frame, the device frame is also provided with a mold changing component. Both the first locking pin connection mechanism and the second locking pin connection mechanism have a locked connection state and an unlocked separation state. When in the locked connection state, the upper clamp and the upper mold, and the lower clamp and the lower mold are connected as one unit. When in the unlocked separation state, the upper clamp and the upper mold, and the lower clamp and the lower mold are disconnected. The mold changing component can drive the first locking pin connection mechanism and the second locking pin connection mechanism to switch synchronously between the locked connection state and the unlocked separation state.

[0005] In some embodiments, the first locking pin connection mechanism includes a drive rack, a plurality of rotating shafts meshing with the drive rack, and a locking tongue fixedly connected to the end of each rotating shaft. The drive rack is slidably connected to the upper clamp, and the rotating shafts are pivotally connected to the upper clamp. The mold changing component can apply force to one end of the drive rack to cause the drive rack to produce a linear displacement of a preset length along the length direction of the upper clamp, thereby causing the locking tongue to swing at a preset angle to realize the switching of the first locking pin connection mechanism between the locked connection state and the unlocked separation state; and / or, the second locking pin connection mechanism has the same structural composition as the first locking pin connection mechanism.

[0006] In some embodiments, the first locking pin connecting mechanism has two sets, both sets of the first locking pin connecting mechanism are connected to the upper clamp and are spaced apart along the width direction of the upper clamp, and the driving racks of the two sets of the first locking pin connecting mechanism are parallel to each other; and / or, the second locking pin connecting mechanism has two sets, both sets of the second locking pin connecting mechanism are connected to the lower clamp and are spaced apart along the width direction of the lower clamp, and the driving racks of the two sets of the second locking pin connecting mechanism are parallel to each other.

[0007] In some embodiments, there are four mold changing components, which are respectively arranged corresponding to the four corner areas of the upper clamp and the lower clamp, and the same mold changing component can simultaneously drive one end of the drive rack in the first locking pin connecting mechanism and the second locking pin connecting mechanism corresponding to its position; and / or, each drive rack has buffer blocks at both ends.

[0008] In some embodiments, the mold changing assembly includes a rack and pinion traverse drive assembly and a tilting cylinder for driving the rack and pinion traverse drive assembly to tilt. The tilting cylinder is assembled on the device frame. The rack and pinion traverse drive assembly has a drive position close to the upper and lower clamps and corresponding to one end of the drive rack, and a yielding position away from the upper and lower clamps. The tilting cylinder can drive the rack and pinion traverse drive assembly to switch between the drive position and the yielding position.

[0009] In some embodiments, the rack lateral movement drive assembly includes a lateral movement cylinder and a push rod. When the rack lateral movement drive assembly is in the drive position, the lateral movement cylinder drives the push rod to extend to apply force to one end of the drive rack. When the rack lateral movement drive assembly is in the yield position, the lateral movement cylinder drives the push rod to retract.

[0010] In some embodiments, the rack and pinion lateral drive assembly further includes a tilting frame, the push rods are two in number and slidably connected to the tilting frame, the non-force-applying ends of the two push rods are connected to a synchronization plate, the lateral cylinder is fixedly connected to the tilting frame and the telescopic rod of the lateral cylinder is connected to the synchronization plate.

[0011] In some embodiments, the transverse cylinder is positioned between the two push rods.

[0012] In some embodiments, the support platform is formed by a plurality of drive rollers spaced apart along the length of the lower clamp, and each drive roller is assembled on the device frame.

[0013] In some embodiments, a limiting component is also assembled on the device frame, the limiting component having a limiting position protruding above the support platform and a release position below the support platform.

[0014] This utility model provides a mold changing mechanism for foaming molding dies. By setting a mold changing component on the device frame, the state of the first locking pin connection mechanism and the second locking pin connection mechanism can be switched, realizing the connection or separation switching between the upper clamp and the upper mold, and between the lower clamp and the lower mold. Compared with the existing technology of manually tightening bolts, it can save labor costs and improve mold changing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the foaming molding mold changing mechanism in an embodiment of the present invention (view from top).

[0016] Figure 2 yes Figure 1 A three-dimensional structural diagram of some components (the device frame, mold changing assembly, etc. are not shown).

[0017] Figure 3 This is a schematic diagram of the first locking pin connecting mechanism in the locked connection state. The state of the second locking pin connecting mechanism is the same and is not shown.

[0018] Figure 4 This is a schematic diagram of the first locking pin connecting mechanism in the unlocked and disengaged state. The state of the second locking pin connecting mechanism is the same and is not shown.

[0019] Figure 5 yes Figure 1 A three-dimensional structural diagram of the mold changing component;

[0020] Figure 6 yes Figure 5 A schematic diagram showing the state of the telescopic rod of the transverse cylinder in the mold changing assembly when it is retracted;

[0021] Figure 7 yes Figure 5 A schematic diagram showing the state of the telescopic rod of the transverse cylinder in the mold changing assembly when it is extended;

[0022] Figure 8 This is a partial structural diagram (partial) of the foaming molding mold changing and mating mechanism in this utility model.

[0023] The reference numerals in the attached figures are as follows:

[0024] 11. Device frame; 12. Mold changing assembly; 121. Rack and pinion lateral movement drive assembly; 1211. Lateral movement cylinder; 1212. Push rod; 1213. Tilting frame; 1214. Synchronizing plate; 122. Tilting cylinder; 123. First hinge seat; 124. Second hinge seat; 13. Drive roller; 14. Limiting assembly; 21. Upper clamp; 22. Lower clamp; 31. Upper mold; 32. Lower mold; 401. First locking pin connection mechanism; 402. Second locking pin connection mechanism; 41. Drive rack; 411. Buffer block; 42. Rotating shaft; 43. Locking tongue. Detailed Implementation

[0025] See also Figures 1 to 8 As shown in the figure, according to an embodiment of the present invention, a mold changing mechanism for foaming molding is provided, including a mold changing device (not labeled in the figure), a foaming mold box (not labeled in the figure), and a mold box clamp (not labeled in the figure) for clamping the foaming mold box. The mold box clamp includes an upper clamp 21 and a lower clamp 22. The foaming mold box includes an upper mold 31 and a lower mold 32. The upper mold 31 and the lower mold 32 are interlocked to form a mold cavity. It is understood that foaming is performed in the aforementioned mold cavity. The aforementioned upper clamp 21 and lower clamp 22 are used to clamp the mold box vertically and vertically to resist the foaming force under the cooperation of the corresponding clamping structures. A first locking pin connection mechanism 401 is provided between the upper clamp 21 and the upper mold 31, and a second locking pin connection mechanism 402 is provided between the lower clamp 22 and the lower mold 32. The mold changing device includes a device frame 11. The foaming mold box and mold box fixture can be supported and positioned on the bearing platform (not labeled in the figure) of the device frame 11. The device frame 11 is also provided with a mold changing component 12. The first locking pin connection mechanism 401 and the second locking pin connection mechanism 402 both have a locked connection state and an unlocked separation state. When in the locked connection state, the upper clamp 21 and the upper mold 31, and the lower clamp 22 and the lower mold 32 are connected as one unit. When in the unlocked separation state, the upper clamp 21 and the upper mold 31, and the lower clamp 22 and the lower mold 32 are disconnected. At this time, the upper clamp 21 can be removed from the top side of the upper mold 31 to replace the new mold box. The mold changing component 12 can drive the first locking pin connection mechanism 401 and the second locking pin connection mechanism 402 to switch synchronously between the locked connection state and the unlocked separation state.

[0026] In this technical solution, by setting a mold changing component 12 on the device frame 11 to switch the state of the first locking pin connecting mechanism 401 and the second locking pin connecting mechanism 402, the connection or separation between the upper clamp 21 and the upper mold 31, and the lower clamp 22 and the lower mold 32 can be switched. Compared with the existing technology of manually tightening bolts, this can save labor costs and improve mold changing efficiency.

[0027] See also Figures 2 to 4 As shown, in some embodiments, the first locking pin connection mechanism 401 includes a drive rack 41, a plurality of rotating shafts 42 meshing with the drive rack 41, and a locking tongue 43 fixedly connected to the end of each rotating shaft 42. Correspondingly, the upper mold 31 and the lower mold 32 are provided with corresponding locking through holes (not shown in the figure, not labeled) in the areas corresponding to the position of the locking tongue 43, so as to ensure that the locking tongue 43 can extend from the side of the upper mold 31 or the lower mold 32 near the clamp to the side away from the clamp. The drive rack 41 is slidably connected to the upper clamp 21, and the rotating shafts 42 are pivotally connected to the upper clamp 21. The mold-changing component 12 can apply force to one end of the drive rack 41 so that the drive rack 41 generates a linear displacement of a preset length along the length direction of the upper clamp 21, thereby driving the locking tongue 43 to swing at a preset angle to realize the switching of the first locking pin connection mechanism 401 between the locked connection state and the unlocked separation state. The aforementioned preset length and preset angle are related to each other. The preset length must meet the adjustment requirements of the preset angle. In a specific embodiment, the aforementioned preset angle is 90°, and the corresponding aforementioned preset length only needs to meet the rotation of the rotating shaft 42 by a quarter turn.

[0028] In this technical solution, the first locking pin connection mechanism 401 engages with multiple rotating shafts 42 simultaneously through a drive rack 41. By driving the aforementioned drive rack 41 to generate a displacement of a preset length, the mechanism can achieve the purpose of synchronously rotating each rotating shaft 42 by a preset angle, thereby adjusting the position of each locking tongue 43 and switching between the locked connection state and the unlocked separation state. The structure is simple and compact. By driving the rotation of multiple rotating shafts 42 simultaneously through a drive rack 41, the mechanism can achieve multi-point locking and unlocking between the upper clamp 21 and the upper mold 31, ensuring a reliable connection between the two.

[0029] In a preferred embodiment, the second locking pin connecting mechanism 402 has the same structure as the first locking pin connecting mechanism 401. That is, the second locking pin connecting mechanism 402 and the first locking pin connecting mechanism 401 are located in different positions. They are the same in terms of locking or unlocking structure and principle, which will not be elaborated here.

[0030] In some embodiments, there are two sets of the first locking pin connecting mechanism 401, both sets of the first locking pin connecting mechanism 401 are connected to the upper clamp 21 and are spaced apart along the width direction of the upper clamp 21, and the driving racks 41 of the two sets of the first locking pin connecting mechanism 401 are parallel to each other; and / or, there are two sets of the second locking pin connecting mechanism 402, both sets of the second locking pin connecting mechanism 402 are connected to the lower clamp 22 and are spaced apart along the width direction of the lower clamp 22, and the driving racks 41 of the two sets of the second locking pin connecting mechanism 402 are parallel to each other. It is understood that the driving racks 41 of the first locking pin connecting mechanism 401 and the driving racks 42 of the second locking pin connecting mechanism 402 are vertically corresponding in position.

[0031] See details Figure 1 As shown, in some embodiments, there are four mold-changing components 12, which are respectively arranged corresponding to the four corner areas of the upper clamp 21 and the lower clamp 22. Each mold-changing component 12 can simultaneously drive one end of the corresponding drive rack 41 in the first locking pin connecting mechanism 401 and the second locking pin connecting mechanism 402. Since a single mold-changing component 12 can simultaneously drive the drive rack 41 in two locking pin connecting mechanisms, ... Figure 1 For reference, the four mold-changing components 12 are divided into two groups. One group is set on the left and right sides of the upper edge of the upper clamp 21, and the other group is set on the left and right sides of the lower edge of the upper clamp 21. For the two mold-changing components 12 at the upper edge, the left mold-changing component 12 is used to control the sliding lateral movement of the drive rack 41 from left to right, while the right mold-changing component 12 is used to control the sliding lateral movement of the drive rack 41 from right to left. This realizes the rotational swing of each rotating shaft 42 in different directions, thereby realizing the switching between the aforementioned locked connection state and unlocked separation state. For example, when the drive rack 41 slides laterally from right to left to realize the switching from the locked connection state to the unlocked separation state, the drive rack 41 slides laterally from left to right to realize the switching from the unlocked separation state to the locked connection state. It can be understood that the sliding lateral movement direction of each drive rack 41 should be consistent at the same time.

[0032] In one specific embodiment, each of the drive racks 41 is provided with buffer blocks 411 at both ends to apply force to the ends of the drive racks 41 to form a buffer and prevent impact damage.

[0033] See details Figure 5As shown, in some embodiments, the mold changing assembly 12 includes a rack traverse drive assembly 121 and a flipping cylinder 122 for driving the rack traverse drive assembly 121 to flip. The flipping cylinder 122 is assembled on the device frame 11 via a second hinge seat 124. The rack traverse drive assembly 121 has a drive position close to the upper clamp 21 and the lower clamp 22 and corresponding to one end of the drive rack 41, and a yielding position away from the upper clamp 21 and the lower clamp 22. The flipping cylinder 122 can drive the rack traverse drive assembly 121 to switch between the drive position and the yielding position.

[0034] In this technical solution, the mold changing component 12 adjusts the position of the rack and pinion lateral movement drive component 121 through its flipping cylinder 122, which can prevent physical interference between the component and the foaming mold box and mold box fixture, and ensure the smooth transfer of the aforementioned foaming mold box and mold box fixture.

[0035] In some embodiments, the rack lateral movement drive assembly 121 includes a lateral movement cylinder 1211 and a push rod 1212. When the rack lateral movement drive assembly 121 is in the driving position, the lateral movement cylinder 1211 drives the push rod 1212 to extend and apply force to one end of the drive rack 41. When the rack lateral movement drive assembly 121 is in the yielding position, the lateral movement cylinder 1211 drives the push rod 1212 to retract. See details below. Figure 5 As shown, the rack and pinion lateral movement drive assembly 121 further includes a flipping frame 1213, which is connected to the device frame 11 via a first hinge seat 123. Two push rods 1212 are slidably connected to the flipping frame 1213, with the non-force-applying ends of the two push rods 1212 connected to a synchronization plate 1214. The lateral movement cylinder 1211 is fixedly connected to the flipping frame 1213, and the telescopic rod of the lateral movement cylinder 1211 is connected to the synchronization plate 1214. The distance between the two push rods 1212 is equal to the gap between the upper and lower drive racks 41, thus achieving synchronous position switching drive of the upper and lower drive racks 41 by the same lateral movement cylinder 1211. The structure is simple and reliable.

[0036] In some embodiments, the transverse cylinder 1211 is positioned between the two push rods 1212 to ensure smooth driving of the two push rods 1212 by the transverse cylinder 1211. The transverse cylinder 1211 being positioned between the two push rods 1212 allows it to exert approximately equal torque on the two push rods 1212, preventing the push rods 1212 from jamming due to excessive torque differences.

[0037] See details Figure 8As shown, in some embodiments, the support platform is formed by a plurality of drive rollers 13 spaced apart along the length of the lower clamp 22. Each drive roller 13 is assembled on the device frame 11. In this technical solution, each drive roller 13 can be an active roller. Thus, the foaming mold box and mold box fixture supported on it can be transported along the target direction by controlling the active rotation of each drive roller 13. Specifically, when mold changing is required, the foaming mold box and mold box fixture are transported to the mold changing device by each drive roller 13 at the inlet position. After the mold changing is completed, each drive roller 13 is controlled to rotate to transport the foaming mold box and mold box fixture to the outlet position for subsequent work.

[0038] In some embodiments, the device frame 11 is also assembled with limiting components 14. The limiting components 14 have a limiting position protruding above the support platform and a release position below the support platform. Specifically, during the conveying of the foaming mold box and mold box fixture, the aforementioned limiting components 14 should be controlled to be in the release position to ensure smooth conveying. During the mold changing process of the foaming mold box and mold box fixture, the aforementioned limiting components 14 should be controlled to be in the limiting position to ensure the reliability and accuracy of the foaming mold box and mold box fixture. Specifically, four sets of limiting components 14 are provided, symmetrically arranged in pairs on opposite sides of the foaming mold box and mold box fixture. Specifically, they may include a lifting cylinder (not shown in the figure, not labeled) assembled on the device frame 11 and a limiting block (not shown in the figure, not labeled) fixed to the extended end of the telescopic rod of the lifting cylinder.

[0039] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above are only preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A mold change fitting mechanism for a foam molding mold characterized by comprising: The device includes a mold changing device, a foaming mold box, and a mold box clamp for holding the foaming mold box. The mold box clamp includes an upper clamp (21) and a lower clamp (22). The foaming mold box includes an upper mold (31) and a lower mold (32). The upper mold (31) and the lower mold (32) are interlocked. A first locking pin connection mechanism (401) is provided between the upper clamp (21) and the upper mold (31). A second locking pin connection mechanism (402) is provided between the lower clamp (22) and the lower mold (32). The mold changing device includes a device frame (11). The foaming mold box and the mold box clamp can be supported and positioned on the bearing platform of the device frame (11). The upper part is also provided with a mold changing component (12). The first locking pin connecting mechanism (401) and the second locking pin connecting mechanism (402) both have a locked connection state and an unlocked separation state. When in the locked connection state, the upper clamp (21) and the upper mold (31) and the lower clamp (22) and the lower mold (32) are connected as one unit. When in the unlocked separation state, the upper clamp (21) and the upper mold (31) and the lower clamp (22) and the lower mold (32) are disconnected. The mold changing component (12) can drive the first locking pin connecting mechanism (401) and the second locking pin connecting mechanism (402) to switch synchronously between the locked connection state and the unlocked separation state.

2. The foam molding mold change fitting mechanism according to claim 1, characterized by The first locking pin connection mechanism (401) includes a drive rack (41), a plurality of rotating shafts (42) meshing with the drive rack (41), and a locking tongue (43) fixedly connected to the end of each rotating shaft (42). The drive rack (41) is slidably connected to the upper clamp (21), and the rotating shaft (42) is pivotally connected to the upper clamp (21). The mold changing component (12) can apply force to one end of the drive rack (41) so that the drive rack (41) generates a linear displacement of a preset length along the length direction of the upper clamp (21), thereby driving the locking tongue (43) to swing at a preset angle to realize the switching of the first locking pin connection mechanism (401) between the locked connection state and the unlocked separation state; and / or, the second locking pin connection mechanism (402) has the same structure as the first locking pin connection mechanism (401).

3. The foam molding mold change fitting mechanism according to claim 2, characterized by The first locking pin connecting mechanism (401) has two sets, both sets of the first locking pin connecting mechanism (401) are connected to the upper clamp (21) and are spaced apart along the width direction of the upper clamp (21), and the driving racks (41) of the two sets of the first locking pin connecting mechanism (401) are parallel to each other; and / or, the second locking pin connecting mechanism (402) has two sets, both sets of the second locking pin connecting mechanism (402) are connected to the lower clamp (22) and are spaced apart along the width direction of the lower clamp (22), and the driving racks (41) of the two sets of the second locking pin connecting mechanism (402) are parallel to each other.

4. The foam molding mold change fitting mechanism according to claim 3, characterized by The mold changing assembly (12) has four parts, and the four mold changing assemblies (12) are respectively set in the four corner areas of the upper clamp (21) and the lower clamp (22). The same mold changing assembly (12) can simultaneously drive the corresponding end of the drive rack (41) in the first locking pin connecting mechanism (401) and the second locking pin connecting mechanism (402) corresponding to its position; and / or, each drive rack (41) has a buffer block (411) at both ends.

5. The foam molding mold change fitting mechanism according to claim 4, characterized by The mold changing assembly (12) includes a rack traverse drive assembly (121) and a flipping cylinder (122) for driving the rack traverse drive assembly (121) to flip. The flipping cylinder (122) is assembled on the device frame (11). The rack traverse drive assembly (121) has a drive position close to the upper clamp (21) and the lower clamp (22) and corresponding to one end of the drive rack (41), and a yielding position away from the upper clamp (21) and the lower clamp (22). The flipping cylinder (122) can drive the rack traverse drive assembly (121) to switch between the drive position and the yielding position.

6. The foam molding mold change fitting mechanism according to claim 5, wherein The rack lateral movement drive assembly (121) includes a lateral movement cylinder (1211) and a push rod (1212). When the rack lateral movement drive assembly (121) is in the driving position, the lateral movement cylinder (1211) drives the push rod (1212) to extend to apply force to one end of the drive rack (41). When the rack lateral movement drive assembly (121) is in the yielding position, the lateral movement cylinder (1211) drives the push rod (1212) to retract.

7. The foam molding mold change engagement mechanism according to claim 6, characterized by The rack and pinion lateral drive assembly (121) further includes a flipping frame (1213). There are two push rods (1212), which are slidably connected to the flipping frame (1213). The non-force-applying ends of the two push rods (1212) are connected to the synchronization plate (1214). The lateral cylinder (1211) is fixedly connected to the flipping frame (1213), and the telescopic rod of the lateral cylinder (1211) is connected to the synchronization plate (1214).

8. The foaming molding die changing and mating mechanism according to claim 7, characterized in that, The transverse cylinder (1211) is located between the two push rods (1212).

9. The foaming molding die changing and mating mechanism according to claim 1, characterized in that, The support platform is formed by a plurality of drive rollers (13) spaced apart along the length of the lower clamp (22), and each drive roller (13) is assembled on the device frame (11).

10. The foaming molding die changing and mating mechanism according to claim 1, characterized in that, The device frame (11) is also assembled with a limiting component (14), which has a limiting position protruding above the bearing platform and a release position below the bearing platform.

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