Mould locking device of PU (polyurethane) foaming forming machine

Abstract

The utility model discloses a mold locking device of a PU (polyurethane) foam forming machine, and belongs to the technical field of shoemaking equipment. The mold locking device comprises a shoe mold and a working table, the working table is provided with a supporting table used for supporting the shoe mold, the supporting table is in sliding connection with the working table through a guiding mechanism, the working table is provided with a driving mechanism used for driving the supporting table to slide, the shoe mold is fixedly connected to the supporting table through a fixing mechanism, and the supporting table is rotationally connected with a turnover frame. The driving mechanism is used for pushing the supporting table to slide back and forth on the working table, on one hand, the shoe mold can be moved to the front of an operator from the position below an injection opening through sliding of the supporting table, formed shoe soles can be conveniently taken down, and on the other hand, the shoe molds can be moved to the front of the operator from the position below the injection opening; and on the other hand, the linkage mechanism can be matched to drive the overturning frame to overturn, so that mold opening and mold locking actions can be automatically completed along with sliding of the supporting table, the operation amount is reduced, and the automation degree is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe-making equipment, in particular to a mold locking device of a PU foaming molding machine. Background Art

[0002] With the rapid development of technology, the existing sole molding process has been upgraded from the original manual pouring of molten plastic into the shoe mold for molding to injection molding through a foam molding machine. The existing foam molding machine has a rotating turntable with several workbenches on it. The shoe mold is installed on the workbench so that the upper continuously passes under the injection molding mechanism as the turntable rotates, thereby realizing the automation of injection molding. However, in this process, mold locking and mold opening still need to be performed manually, which affects the processing efficiency and the degree of automation. Therefore, a mold locking device is needed to solve this problem. Utility Model Content

[0003] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and other drawings of the description.

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a mold locking device for a PU foaming molding machine.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a locking device of a PU foam molding machine, comprising a shoe mold and a workbench, the workbench is provided with a support table for supporting the shoe mold, the support table is slidably connected to the workbench through a guiding mechanism, the workbench is provided with a driving mechanism for driving the support table to slide, the shoe mold is fixedly connected to the support table through a fixing mechanism, the support table is rotatably connected to a flip frame, the workbench is provided with a linkage mechanism that utilizes the sliding of the support table to drive the flip frame to rotate, and the flip frame is transmission-connected to the handle of the shoe mold through a clamping mechanism.

[0006] By adopting the above technical solution, the driving mechanism can be used to push the support table to slide back and forth on the workbench. The sliding of the support table can, on the one hand, allow the shoe mold to move from below the injection port to the front of the operator, so as to facilitate the removal of the formed sole. On the other hand, it can cooperate with the linkage mechanism to drive the flip frame to flip. When the support table slides forward to the front of the operator, the flip frame can drive the handle of the upper mold of the shoe mold through the clamping mechanism, so that the top of the shoe mold is flipped to open the shoe mold, thereby facilitating the removal of the sole. When the support table slides backward, the flip frame will drive the shoe mold to lock the mold. Through this structure, the mold opening and locking actions can be completed automatically as the support table slides, thereby reducing the amount of operation and improving the degree of automation.

[0007] Preferably, the guide mechanism includes two groups of guide components, which are respectively arranged on both sides of the bottom of the support platform, and the guide components include a slide bar and a slide seat, the slide bar is fixedly connected to the workbench, the slide seat is slidably connected to the slide bar, and the slide seat is fixedly connected to the support platform. The utility model utilizes the mutual cooperation of the slide bar and the slide seat to enable the support platform to accurately and stably slide linearly on the workbench, which is conducive to the stable operation of the linkage mechanism.

[0008] Preferably, the driving mechanism is a cylinder, and the output rod of the cylinder is fixedly connected to the support platform. The utility model utilizes the extension and retraction of the output rod of the cylinder to achieve the effect of driving the support platform to slide.

[0009] Preferably, the fixing mechanism comprises a limit block, a screw and two clamping blocks, the limit block is fixedly connected to the support platform, the limit block abuts against the back of the shoe mold, the two clamping blocks are clamped on both sides of the shoe mold, the screw is rotatably connected to the support platform, the two clamping blocks are both threadedly connected to the screw, and the threads on the two clamping blocks are in opposite directions. The utility model utilizes the limit block to limit the shoe mold from sliding backwards, and the two clamping blocks located on both sides of the shoe mold can move closer to or farther away from each other by rotating the screw under the action of the thread, so that the shoe mold can be adjusted and clamped according to the width of the shoe mold, and the shoe mold is fixed in this way.

[0010] Preferably, the linkage mechanism includes a gear and a rack, the gear is fixedly connected to the rotating shaft of the flip frame, the rack is fixedly connected to the workbench, and the gear and the rack are meshed. The utility model utilizes the mutual meshing of the gear and the rack, so that when the support table slides, the gear moves linearly along the rack, thereby driving the flip frame to rotate through the gear.

[0011] Preferably, the clamping mechanism comprises a connecting frame, a locking bolt and two clamping plates, the connecting frame is connected to the flip frame, the two clamping plates are movably connected to the connecting frame, the locking bolt passes through one of the clamping plates, and the locking bolt is threadedly connected to the other clamping plate. The two clamping plates of the utility model can slide on the connecting frame, so that the position of the clamping plate can be adjusted according to the different positions of the shoe mold handle, so that the clamping plate can be clamped on the upper and lower sides of the handle, and the clamping of the clamping plate is achieved by the locking bolt, and the locking bolt is threadedly connected to one of the clamping plates, so that when the locking bolt is rotated, the distance between the screw head of the locking bolt and the clamping plate will change, and the other clamping plate is penetrated by the locking bolt and is slidably connected to the locking bolt, so the distance with the other clamping plate can be adjusted according to the position of the screw head, so that the handle of the shoe mold can be loosened or clamped.

[0012] Preferably, the connection frame is connected to the flip frame through a guide rod, the connection frame is slidably connected to the guide rod, both sides of the flip frame are provided with guide grooves, and the guide rod runs through the two guide grooves. The utility model uses the guide rod to adjust the position of the connection frame, so that the position of the entire clamping mechanism can be adjusted according to the handle position of different shoe molds. Through the guide grooves on both sides of the flip frame, when the rotation center of the flip member is not coaxial with the rotation center of the shoe mold, the shoe mold can be provided with the activity space required to follow the rotation of the flip frame.

[0013] Preferably, an elastic member is provided between the connection frame and one of the clamping plates. The utility model utilizes the elastic force of the elastic member to apply a downward pressing force to the handle of the upper through the clamping plate, so that the upper and lower molds of the shoe mold can always be kept in close contact.

[0014] Preferably, the connecting frame is threadedly connected with a positioning bolt, and the positioning bolt abuts against one of the clamps. The positioning bolt of the utility model abuts against the clamp located below, and can support the clamp located below. By rotating the positioning bolt, the position of the clamp below can be easily adjusted to fix it in the desired position, thereby facilitating the adjustment of the locking bolt.

[0015] In summary, the beneficial effects of the utility model are:

[0016] 1. The driving mechanism can be used to push the support table to slide back and forth on the workbench. The sliding of the support table can move the shoe mold from under the injection port to the operator to facilitate the removal of the molded sole. On the other hand, it can cooperate with the linkage mechanism to drive the flip frame to flip, so that the mold opening and clamping actions can be completed automatically with the sliding of the support table, reducing the amount of operation and improving the degree of automation.

[0017] 2. By utilizing the sliding connection between the two clamps and the connection frame, the position of the clamps can be adjusted according to the different positions of the shoe mold handles, so that the clamps can be clamped on the upper and lower sides of the shoe upper handles.

[0018] 3. The elastic force of the elastic member can be used to apply a downward pressure to the handle of the shoe upper through the splint, so that the upper and lower molds of the shoe mold can always remain in close contact.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0020] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments described with reference to various figures and drawings.

[0021] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0023] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0025] Figure 1 Indicates the overall structure Figure 1 ;

[0026] Figure 2 Indicates the overall structure Figure 2 ;

[0027] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0028] Explanation of the main figure marks: 1. shoe mold; 2. workbench; 3. support table; 4. turning frame; 5. slide rod; 6. slide seat; 7. cylinder; 8. limit block; 9. screw; 10. clamping block; 11. gear; 12. rack; 13. connecting frame; 14. locking bolt; 15. splint; 16. guide rod; 17. guide groove; 18. elastic member; 19. positioning bolt. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model, but not to limit the utility model.

[0030] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 present invention.

[0031] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0033] like Figure 1-3 As shown, a locking device of a PU foaming molding machine includes a shoe mold 1 and a workbench 2. The workbench 2 is provided with a support table 3 for supporting the shoe mold 1. The support table 3 is slidably connected to the workbench 2 through a guiding mechanism. The workbench 2 is provided with a driving mechanism for driving the support table 3 to slide. The shoe mold 1 is fixedly connected to the support table 3 through a fixing mechanism. The support table 3 is rotatably connected to a flip frame 4. The workbench 2 is provided with a linkage mechanism that utilizes the sliding of the support table 3 to drive the flip frame 4 to rotate. The flip frame 4 is transmission-connected to the handle of the shoe mold 1 through a clamping mechanism.

[0034] By adopting the above technical scheme, the driving mechanism can be used to push the support table 3 to slide back and forth on the workbench 2. The sliding of the support table 3 can, on the one hand, allow the shoe mold 1 to move from below the injection port to the front of the operator, so as to facilitate the removal of the formed sole. On the other hand, it can cooperate with the linkage mechanism to drive the flip frame 4 to flip. When the support table 3 slides forward to the front of the operator, the flip frame 4 can drive the handle of the upper mold of the shoe mold 1 through the clamping mechanism, so that the top of the shoe mold 1 is flipped to open the shoe mold 1, thereby facilitating the removal of the sole. When the support table 3 slides backward, the flip frame 4 will drive the shoe mold 1 to lock the mold. Through this structure, the mold opening and locking actions can be completed automatically as the support table 3 slides, thereby reducing the amount of operation and improving the degree of automation.

[0035] The guide mechanism includes two sets of guide components, which are respectively arranged on both sides of the bottom of the support platform 3. The guide components include a slide bar 5 and a slide seat 6. The slide bar 5 is fixedly connected to the workbench 2, and the slide seat 6 is slidably connected to the slide bar 5, and the slide seat 6 is fixedly connected to the support platform 3. By using the mutual cooperation of the slide bar 5 and the slide seat 6, the support platform 3 can accurately and stably slide linearly on the workbench 2, which is conducive to the stable operation of the linkage mechanism.

[0036] The driving mechanism is a cylinder 7, and an output rod of the cylinder 7 is fixedly connected to the support platform 3. The effect of driving the support platform 3 to slide is achieved by utilizing the extension and contraction of the output rod of the cylinder 7.

[0037] The fixing mechanism includes a limit block 8, a screw 9 and two clamping blocks 10. The limit block 8 is fixedly connected to the support platform 3, the limit block 8 abuts against the back of the shoe mold 1, and the two clamping blocks 10 are clamped on both sides of the shoe mold 1. The screw 9 is rotatably connected to the support platform 3. The two clamping blocks 10 are both threadedly connected to the screw 9, and the threads on the two clamping blocks 10 are in opposite directions. The limit block 8 can be used to limit the shoe mold 1 from sliding backwards. The two clamping blocks 10 on both sides of the shoe mold 1 can be moved closer to or away from each other by rotating the screw 9 under the action of the threads, so that the shoe mold 1 can be adjusted and clamped according to the width of the shoe mold 1, and the shoe mold 1 is fixed in this way.

[0038] The linkage mechanism includes a gear 11 and a rack 12. The gear 11 is fixedly connected to the rotating shaft of the turning frame 4, and the rack 12 is fixedly connected to the workbench 2. The gear 11 and the rack 12 are meshed. By meshing the gear 11 and the rack 12, when the support table 3 slides, the gear 11 moves linearly along the rack 12, so that the turning frame 4 can be driven to rotate through the gear 11.

[0039] The clamping mechanism includes a connection frame 13, a locking bolt 14 and two clamping plates 15. The connection frame 13 is connected to the flip frame 4. The two clamping plates 15 are movably connected to the connection frame 13. The locking bolt 14 passes through one of the clamping plates 15, and the locking bolt 14 is threadedly connected to the other clamping plate 15. Both clamping plates 15 can slide on the connection frame 13, so that the position of the clamping plates 15 can be adjusted according to the different positions of the handle of the shoe mold 1, so that the clamping plates 15 can be clamped on the upper and lower sides of the handle. The clamping of the clamping plates 15 is achieved by the locking bolt 14. The locking bolt 14 is threadedly connected to one of the clamping plates 15, so that when the locking bolt 14 rotates, the distance between the screw head of the locking bolt 14 and the clamping plate will change. The other clamping plate 15 is penetrated by the locking bolt 14 and is slidably connected to the locking bolt 14. Therefore, the distance with the other clamping plate 15 can be adjusted according to the position of the screw head, so that the handle of the shoe mold 1 can be loosened or clamped.

[0040] The connecting frame 13 is connected to the turning frame 4 through the guide rod 16, and the connecting frame 13 is slidably connected to the guide rod 16. Guide grooves 17 are provided on both sides of the turning frame 4, and the guide rod 16 runs through the two guide grooves 17. The guide rod 16 can be used to adjust the position of the connecting frame 13, so that the position of the entire clamping mechanism can be adjusted according to the handle position of different shoe molds 1. The guide grooves 17 on both sides of the turning frame 4 can provide the activity space required for the shoe mold 1 to rotate with the turning frame 4 when the rotation center of the turning member is not coaxial with the rotation center of the shoe mold 1.

[0041] An elastic member 18 is provided between the connecting frame 13 and one of the clamping plates 15. The elastic force of the elastic member 18 can be used to apply a downward pressing force to the handle of the upper through the clamping plate 15, so that the upper and lower molds of the shoe mold 1 can always keep in close contact.

[0042] The connecting frame 13 is threadedly connected with a positioning bolt 19, which abuts against one of the clamps 15. The positioning bolt 19 abuts against the clamp 15 located below, and can support the clamp 15 located below. By rotating the positioning bolt 19, the position of the clamp 15 below can be easily adjusted to fix it in the desired position, thereby facilitating the adjustment of the locking bolt 14.

[0043] It should be noted that many specific details are set forth in the above description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

Claims

1. A mold locking device for a PU foaming molding machine, comprising a shoe mold (1) and a workbench (2), characterized in that: The workbench (2) is provided with a support platform (3) for supporting the shoe mold (1); the support platform (3) is slidably connected to the workbench (2) via a guiding mechanism; the workbench (2) is provided with a driving mechanism for driving the support platform (3) to slide; the shoe mold (1) is fixedly connected to the support platform (3) via a fixing mechanism; the support platform (3) is rotatably connected to a flip frame (4); the workbench (2) is provided with a linkage mechanism for driving the flip frame (4) to rotate by sliding the support platform (3); the flip frame (4) is transmission-connected to the handle of the shoe mold (1) via a clamping mechanism.

2. The mold clamping device of the PU foaming molding machine according to claim 1, characterized in that: The guide mechanism comprises two groups of guide components, the two groups of guide components are respectively arranged on both sides of the bottom of the support platform (3), the guide components comprise a slide bar (5) and a slide seat (6), the slide bar (5) is fixedly connected to the workbench (2), the slide seat is slidably connected to the slide bar (5), and the slide seat is fixedly connected to the support platform (3).

3. The mold clamping device of the PU foaming molding machine according to claim 2, characterized in that: The driving mechanism is a cylinder (7), and an output rod of the cylinder (7) is fixedly connected to the support platform (3).

4. The mold clamping device of the PU foaming molding machine according to claim 3, characterized in that: The fixing mechanism comprises a limit block (8), a screw (9) and two clamping blocks (10); the limit block (8) is fixedly connected to the support platform (3); the limit block (8) abuts against the back of the shoe mold (1); the two clamping blocks (10) are clamped on both sides of the shoe mold (1); the screw (9) is rotatably connected to the support platform (3); the two clamping blocks (10) are both threadedly connected to the screw (9), and the threads on the two clamping blocks (10) have opposite rotation directions.

5. The mold clamping device of the PU foaming molding machine according to claim 4, characterized in that: The linkage mechanism comprises a gear (11) and a rack (12); the gear (11) is fixedly connected to the rotating shaft of the turning frame (4); the rack (12) is fixedly connected to the workbench (2); and the gear (11) and the rack (12) are meshed.

6. The mold clamping device of the PU foaming molding machine according to claim 1, characterized in that: The clamping mechanism comprises a connecting frame (13), a locking bolt (14) and two clamping plates (15); the connecting frame (13) is connected to the flip frame (4); the two clamping plates (15) are movably connected to the connecting frame (13); the locking bolt (14) passes through one of the clamping plates (15); and the locking bolt (14) is threadedly connected to the other clamping plate (15).

7. The mold clamping device of the PU foaming molding machine according to claim 6, characterized in that: The connecting frame (13) is connected to the turning frame (4) via a guide rod (16); the connecting frame (13) is slidably connected to the guide rod (16); guide grooves (17) are provided on both sides of the turning frame (4); and the guide rod (16) passes through the two guide grooves (17).

8. The mold clamping device of the PU foaming molding machine according to claim 6, characterized in that: An elastic member (18) is provided between the connection frame (13) and one of the clamping plates (15).

9. The mold clamping device of the PU foaming molding machine according to claim 6, characterized in that: The connection frame (13) is threadedly connected with a positioning bolt (19), and the positioning bolt (19) abuts against one of the clamping plates (15).

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