Die transfer mechanism of preforming device

Abstract

The utility model provides a mold transfer mechanism of a preforming device, and belongs to the technical field of thermal diaphragm preforming. The problems that an existing working area is small in operation space, large in positioning difficulty and unfriendly in operation, and heating preforming and cooling shape maintaining in the current preforming process are completed in one station are solved. According to the mold transferring mechanism of the pre-forming device, the shape-preserving cooling bag connecting mechanism is further arranged beside the heating pre-forming bag connecting mechanism, the moving assembly is further arranged on the fixing platform, and the mold can be transferred to the position below the shape-preserving cooling bag connecting mechanism from the heating pre-forming bag connecting mechanism through the moving assembly. And under the action of the moving assembly, the pre-forming device can move to the position below the shape-preserving cooling bag connecting mechanism and then is subjected to cooling shape-preserving treatment by the shape-preserving cooling bag connecting mechanism, and pre-forming can be completed better and better in quality. The operation problem in a narrow space and the ergonomics problem of operators are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of preforming and relates to a mold transfer mechanism of a preforming device. Background Art

[0002] Airbag forming is a composite material forming method. The material sheet is pre-laid on the preforming mold. Then the airbag is heated and inflated under positive pressure. The airbag is pressed down onto the mold through an external drive, so that the material sheet is squeezed between the mold and the airbag, and finally the desired mold shape is formed.

[0003] At present, the preforming tooling is manually carried to the heating preforming station. A heating preforming capsule connection mechanism is also arranged directly above the heating preforming station. The heating preforming capsule connection mechanism includes an upper template for connecting to an external driver and a fixed frame connected to the upper template. The forming capsule is connected to the fixed frame, and the entire heating preforming capsule connection mechanism can be driven to cooperate with the mold through an external lifting motor, that is, the entire upper template and the forming capsule are driven downward, so that the forming capsule fits the mold, and the material sheet placed on the mold is squeezed, and the material sheet is completely fitted to the mold, and then the heating and pressure holding step is performed. After completion, it is necessary to enter the next cooling and shaping step.

[0004] Due to the small operating space in the working area, the difficulty of positioning and the unfriendly operation, and the fact that the heating preforming and cooling preforming in the current preforming process are completed at one workstation, it is necessary to heat up the preforming first and then cool down to maintain the shape. The operation cycle time is long and the production efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to provide a mold transfer mechanism of a preforming device with a compact structure and strong stability in view of the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A mold transfer mechanism for a preforming device comprises a machine body, a fixed platform, a mold located on the fixed platform for placing a preformed material plate, and a heating preforming bag connecting mechanism connected to the machine body, a shape-preserving cooling bag connecting mechanism is also arranged next to the heating preforming bag connecting mechanism, and a moving component is also arranged on the fixed platform, through which the mold can be transferred from the heating preforming bag connecting mechanism to the bottom of the shape-preserving cooling bag connecting mechanism.

[0008] The transfer mechanism is provided with two adjacent workstations, one is a heating preforming capsule connecting mechanism for heating and preforming the preformed material plate to make the preformed material plate into a preformed body, and the other is a shape-preserving cooling capsule connecting mechanism for cooling the preformed body to preserve its shape. Both the heating preforming capsule connecting mechanism and the shape-preserving cooling capsule connecting mechanism are also provided with a capsule connecting mechanism that can cooperate with a mold with the preformed body placed thereunder. The capsule connecting mechanism includes an upper template, a molding capsule and a fixed frame. An explosion-proof motor is also provided on the top of the machine body. The upper template is connected to the explosion-proof motor through a vertical guide rod, and the upper template can be driven by the explosion-proof motor and the vertical guide rod. The fixed frame is connected to the lower end surface of the upper template, and the molding capsule is connected to the fixed frame. The molding capsule can contact the mold after moving downward.

[0009] During operation, the forming bladder is inflated to expand, and then the entire bladder connection mechanism is driven downward by an explosion-proof motor, so that the forming bladder contacts the lower mold, and the preformed sheet placed on the mold is extruded to form a preform.

[0010] By setting a set of moving components on the fixed platform, the mold can be automatically transferred and accurately positioned in the cooling and heating working areas. That is to say, after the preform and the mold are heated and preformed at the heating preform bag connection mechanism, they can be moved to the bottom of the shape-preserving cooling bag connection mechanism under the action of the moving components, and then cooled and processed by the shape-preserving cooling bag connection mechanism, so that the preform can be completed better and with higher quality. The operation problem in a small space and the ergonomic problem of the operator are solved.

[0011] In the mold transfer mechanism of the above-mentioned preforming device, the moving component includes a mounting plate, a screw rod, a guide rail, and a servo motor. The mold is connected to the mounting plate, the guide rail is connected to the surface of the fixed platform, and a slider is also connected to the bottom of the mounting plate, and the slider is slidably connected to the guide rail. The screw rod and the servo motor are both connected in the frame, the screw rod is arranged in parallel at the lower part of the guide rail, the slider is connected to the screw rod, and the servo motor can drive the slider to move along the guide rail.

[0012] A number of guide rails are also connected to the fixed platform, and the multiple guide rails are evenly distributed along the fixed platform array, and the servo motor and the lead screw are installed inside the frame, and the lead screw is arranged parallel to the bottom of the guide rail. The upper part of the slider is slidably connected to the guide rail, and the lower part is connected to the lead screw. In this way, the slider can be driven by the servo motor and the lead screw, and then the mounting plate and the preform and mold connected to the mounting can be moved synchronously. That is to say, after the preform and the mold are heated and preformed by the heated preforming bag connecting mechanism, they are moved to the bottom of the rear shape-preserving cooling bag connecting mechanism.

[0013] In the mold transfer mechanism of the above-mentioned preforming device, a heating copper bar is also connected to the mounting plate, the mold is mounted on the heating copper bar, and a positioning baffle is also provided between the mold and the heating copper bar.

[0014] The mounting plate is used to install and transfer the preform and the mold. A heating copper bar is also connected to the mounting plate. Positioning baffles are also provided at the corners of the heating copper bar. The mold can be limited and connected to the mounting plate through the positioning baffle, and the mold is attached to the heating copper bar.

[0015] In the mold transfer mechanism of the above-mentioned preforming device, the shape-retaining cooling bag connecting mechanism includes a cooling mechanism and a shape-retaining bag mechanism, the cooling mechanism includes a water circulation cooling plate and a cold water tank, the water circulation cooling plate is arranged on the upper surface of the mounting plate, the cold water tank is arranged outside the machine body, and the water circulation cooling plate is connected to the cold water tank through a water pipe.

[0016] The water circulation cooling plate is laid on the mounting plate, that is, between the heating copper bar and the mounting plate. The cold water tank is located outside the machine body and is connected to the water circulation cooling plate through a water pipe. The water circulation cooling plate and the cold water tank are connected to form a closed cold water closed loop. In this way, the cold water is circulated through the cold water tank to evenly cool the mold and the preform above.

[0017] In the mold transfer mechanism of the above-mentioned preforming device, the shape-retaining bag mechanism includes a fixed frame, a molding bag, and a sealing plate. The fixed frame is connected to the lower end surface of the upper mold plate. A groove is also provided on the outer wall of the fixed frame. The sealing plate also has a protrusion. The molding bag is squeezed between the protrusion and the groove. Sealing strips are provided between the groove and the molding bag, and between the protrusion and the molding bag.

[0018] One end of the external vertical lifting rod is connected to the upper template, and the other end is connected to the external driver, so that the upper template and the molding bag connected to the lower part of the upper template can be driven by the external driver and the vertical lifting rod.

[0019] The fixed frame is used to connect the forming capsule. The lower end surface of the upper template is connected with the fixed frame, and the forming capsule is connected to the fixed frame. The forming capsule is connected to the fixed frame in a U shape, that is, the two sides of the forming capsule are respectively connected to the two sides of the fixed frame, and a groove is also provided on the outer wall of the fixed frame. The sealing plate is provided with a protrusion aligned with the groove, which can fit. The two sides of the forming capsule are respectively located at the outer walls of the two sides of the fixed frame, and then the forming capsule is connected to the fixed frame through the sealing plate. The two sides of the forming capsule are respectively squeezed on the outer walls of the fixed frame and the sealing plate, and are locked between the groove and the protrusion. There are sealing strips between the groove and the forming capsule, and between the protrusion and the forming capsule, thereby increasing the air tightness of the forming capsule. The forming capsule fits the preform after being lifted by the fixed frame and moved vertically downward, and covers the preform and the mold on the working platform under the pressure of the forming capsule.

[0020] In the mold transfer mechanism of the above-mentioned preforming device, an insulation box is further provided outside the fixed frame, and heat insulation cotton is also laid inside the insulation box.

[0021] The heat preservation box is used to cover the entire forming bag device, the mold and the preform, and provides heat preservation and heat insulation for the entire preforming process.

[0022] In the mold transfer mechanism of the above-mentioned preforming device, a vacuum pump is also arranged outside the machine body, and the vacuum pump is connected to the mold retaining bag mechanism through a pipeline.

[0023] The vacuum pump provides a pressure source for the mold-keeping bag mechanism, which can quickly extract gas or steam from the closed container, saving time and improving production efficiency.

[0024] In the mold transfer mechanism of the above-mentioned preforming device, a movable loading platform is further provided on the side of the fixed platform, the upper part of the loading platform is further connected to a support frame, and the supporting frame is further connected to the loading platform.

[0025] In the mold transfer mechanism of the above-mentioned preforming device, the loading platform is arranged parallel to the fixed platform, and a plurality of universal floating beads are installed on the surface of the loading platform.

[0026] The loading platform is used for loading molds. A roller with fixing and steering functions is connected to the bottom of the loading platform to facilitate material loading and unloading.

[0027] The loading platform is parallel to the fixed platform, which can facilitate the movement of the preform and the mold located on the loading platform to the fixed platform. In addition, a plurality of universal floats are installed on the surface of the loading platform, which can withstand high loads and have lower friction and wear, and can move the preform and the mold to the fixed platform more labor-saving and time-saving.

[0028] Compared with the prior art, the mold transfer mechanism of the preforming device is equipped with a set of moving components on a fixed platform, which can realize the automatic transfer and precise positioning of the mold in the cooling and heating working range. That is to say, after the preformed material plate and the mold are heated and preformed at the heating preforming bag connection mechanism, they can be moved to the bottom of the shape-preserving cooling bag connection mechanism under the action of the moving components, and then the cooling treatment is realized under the cooling and shape-preserving cooling bag connection mechanism, so that the preforming can be completed with better quality. The operation problem of a small space and the ergonomic problem of the operator are solved, and a shape-preserving bag mechanism is also arranged at the bottom of the upper template to ensure that the preforming is completed with better quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention is a structural schematic diagram of a mold transfer mechanism of a preforming device.

[0030] Figure 2 The present invention is a structural schematic diagram of a mold transfer mechanism of a preforming device.

[0031] Figure 3 The present invention is a structural schematic diagram of a fixed platform in a mold transfer mechanism of a preforming device.

[0032] Figure 4 The present invention is a structural schematic diagram of a mold in a mold transfer mechanism of a preforming device.

[0033] Figure 5 The present invention is a structural schematic diagram of a moving component in a mold transfer mechanism of a preforming device.

[0034] Figure 6 The present invention is a structural schematic diagram of a fixed frame in a mold transfer mechanism of a preforming device.

[0035] Figure 7 The present invention is a schematic diagram of a molding capsule connection structure in a mold transfer mechanism of a preforming device.

[0036] Figure 8 It is a structural schematic diagram of an existing forming capsule.

[0037] In the figure, 1. machine body; 1a. fixed platform; 2. heating preforming capsule connection mechanism; 3. shape-preserving cooling capsule connection mechanism; 4. loading platform; 5. mounting plate; 6. screw rod; 7. guide rail; 8. servo motor; 9. slider; 10. loading platform; 11. universal float; 12. heating copper bar; 13. water circulation cooling plate; 14. cold water tank; 15. positioning baffle; 16. fixed frame; 17. groove; 18. forming capsule; 19. sealing strip; 20. insulation box; 21. mold; 22. explosion-proof motor; 23. upper template; 24. vertical lifting rod; 25. sealing plate. DETAILED DESCRIPTION

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 ,and Figure 8 As shown, the mold 21 transfer mechanism of the preforming device includes a machine body 1, a fixed platform 1a, a mold 21 located on the fixed platform 1a for placing a preformed material sheet, and a heating preforming bag 18 connecting mechanism 2 connected to the machine body 1, a shape-preserving cooling bag connecting mechanism 3 is also arranged next to the heating preforming bag 18 connecting mechanism 2, and a moving component is also arranged on the fixed platform 1a, through which the mold 21 can be transferred from the heating preforming bag 18 connecting mechanism 2 to the bottom of the shape-preserving cooling bag connecting mechanism 3.

[0039] The moving assembly includes a mounting plate 5, a screw rod 6, a guide rail 7, and a servo motor 8. The mold 21 is connected to the mounting plate 5. The guide rail 7 is connected to the surface of the fixed platform 1a. A slider 9 is also connected to the bottom of the mounting plate 5, and the slider 9 is slidably connected to the guide rail 7. The screw rod 6 and the servo motor 8 are both connected in the frame. The screw rod 6 is arranged in parallel at the lower part of the guide rail 7. The slider 9 is connected to the screw rod 6. The servo motor 8 can drive the slider 9 to move along the guide rail 7.

[0040] The mounting plate 5 is also connected to a heating copper bar 12 , the mold 21 is mounted on the heating copper bar 12 , and a positioning baffle 15 is also provided between the mold 21 and the heating copper bar 12 .

[0041] The shape-preserving cooling bag connecting mechanism 3 includes a cooling mechanism and a shape-preserving bag mechanism. The cooling mechanism includes a water circulation cooling plate 13 and a cold water tank 14. The water circulation cooling plate 13 is arranged on the upper surface of the mounting plate 5, and the cold water tank 14 is arranged outside the body 1. The water circulation cooling plate 13 is connected to the cold water tank 14 through a water pipe.

[0042] The shape-retaining bag mechanism includes a fixed frame 16, a molding bag 18, and a sealing plate 25. The fixed frame 16 is connected to the lower end surface of the upper template 23. A groove 17 is also provided on the outer wall of the fixed frame 16. The sealing plate 25 also has a protrusion. The molding bag 18 is squeezed between the protrusion and the groove 17. Sealing strips 19 are provided between the groove 17 and the molding bag 18, and between the protrusion and the molding bag 18.

[0043] An insulation box 20 is also provided outside the fixing frame 16 , and heat insulation cotton is also laid inside the insulation box 20 .

[0044] A vacuum pump is also provided outside the machine body 1, and the vacuum pump is connected to the shape-preserving bag mechanism through a pipeline.

[0045] A movable loading platform 4 is also provided on the side of the fixed platform 1a, and a support frame is connected to the upper part of the loading platform 4, and a loading platform 10 is also connected to the support frame.

[0046] The loading platform 10 is arranged parallel to the fixed platform 1 a , and a plurality of universal floating beads 11 are installed on the surface of the loading platform 10 .

[0047] The mold 21 transfer mechanism of the preforming device is also provided with a loading platform 4 next to the heating preforming capsule 18 connecting mechanism 2. The loading platform 4 can be used to carry the preforming mold 21 lightly and quickly, and the preforming mold 21 on the loading platform 4 is moved to the fixed platform 1a. Two adjacent workstations are arranged above the fixed platform 1a, one is a heating preforming capsule 18 connecting mechanism 2 for heating and preforming the preformed material plate, and the other is a shape-preserving cooling capsule connecting mechanism 3 for cooling the preformed body to preserve its shape. The heating preforming capsule 18 connecting machine first forms the preformed material plate into a preformed body, and then moves the preformed body to the shape-preserving cooling capsule connecting mechanism 3 through the moving component on the fixed platform 1a, and then the shape-preserving cooling capsule connecting mechanism 3 performs shape-preserving cooling treatment.

[0048] Both the heating preform capsule 18 connecting mechanism 2 and the shape-preserving cooling capsule connecting mechanism 3 are also provided with a capsule connecting mechanism that can cooperate with the mold 21 with the preformed body placed below. The capsule connecting mechanism includes an upper template 23, a forming capsule 18 and a fixed frame 16. An explosion-proof motor 22 is also provided on the top of the body 1. The upper template 23 is connected to the explosion-proof motor 22 through a vertical guide rod, and the upper template 23 can be driven by the explosion-proof motor 22 and the vertical guide rod. The fixed frame 16 is connected to the lower end surface of the upper template 23, and the forming capsule 18 is connected to the fixed frame 16. The forming capsule 18 can contact the mold 21 after moving downward.

[0049] A plurality of guide rails 7 are also connected to the fixed platform 1a, and the plurality of guide rails 7 are evenly distributed along the array of the fixed platform 1a, and the servo motor 8 and the screw rod 6 are both installed inside the frame, and the screw rod 6 is arranged parallel to the bottom of the guide rail 7, and the upper part of the slider 9 is slidably connected to the guide rail 7, and the lower part is connected to the screw rod 6, so that the slider 9 can be driven by the servo motor 8 and the screw rod 6, and then the mounting plate 5 and the preform and mold 21 connected thereto are moved synchronously, that is, after the preform and the mold 21 are heated and preformed by the heated preforming bag 18 connecting mechanism 2, they are moved to the bottom of the rear shape-preserving cooling bag connecting mechanism 3.

[0050] The mounting plate 5 is used to install and transfer the preform and the mold 21. A heating copper bar 12 is also connected to the mounting plate 5. Positioning baffles 15 are also provided at the corners of the heating copper bar 12. The mold 21 can be limited and connected to the mounting plate 5 through the positioning baffle 15, and the mold 21 is attached to the heating copper bar 12. The water circulation cooling plate 13 is laid on the mounting plate 5, and the cold water tank 14 is located outside the body 1 and is connected to the water circulation cooling plate 13 through a water pipe. The water circulation cooling plate 13 is connected to the cold water tank 14 to form a closed cold water closed loop, which can evenly cool the mold 21 and the preform above it.

[0051] Before the operation, the preforming mold 21 and the preforming material plate are manually moved to the surface of the loading platform 10 on the loading platform 4. By moving the loading platform 4 to the side of the main body 1, the preforming mold 21 can be more conveniently moved to the fixed platform 1a under the action of the universal float 11, and aligned up and down with the heating preforming bag 18 connecting mechanism 2.

[0052] Then, each driver is turned on to inflate the forming capsule 18 to expand it, the copper bus 12 is heated for heating, and the explosion-proof motor 22 is started to drive the entire heated preformed capsule 18 connecting mechanism 2 to move downward. The forming capsule 18 of the heated preformed capsule 18 connecting mechanism 2 contacts and extrude the preformed material plate on the upper surface of the mold 21, and the forming capsule 18 is completely fitted with the mold 21 on the mounting plate 5. The corners of the forming capsule 18 are also extruded and formed to fit the mold 21. In other words, the preformed material plate placed on the mold 21 is extruded and formed to form a preformed body.

[0053] After preforming is completed, the explosion-proof motor 22 drives the entire heated preforming bag 18 connecting mechanism 2 to move upward, and then the mold 21 and the preform are transferred to the bottom of the shape-keeping cooling bag connecting mechanism 3 through the moving component, and the explosion-proof motor 22 drives the entire shape-keeping cooling bag connecting mechanism 3 to move downward, so that the insulation box 20 is set on the mold 21, and the molding bag 18 of the shape-keeping cooling bag connecting mechanism 3 is wrapped and fitted with the preform, and the molding bag 18 fits the preform, and covers the preform and the mold 21 on the working platform under the pressure of the molding bag 18 to achieve pressure holding. After a certain period of pressure holding, the heating copper bar 12 is turned off and the circulation cooling is turned on while the mold 21 and the preform are moved. That is to say, the cold water tank 14 circulates cold water to the water circulation cooling plate 13 at the mounting plate 5 to cool the mold 21 and cool it down for finalizing, so that the preform can also be finalized faster.

[0054] After cooling, the mold is opened, that is, the explosion-proof motor 22 drives the entire shape-keeping cooling bag connecting mechanism 3 to move upward, and the preformed forming bag 18 is taken out. The preforming can be completed with better quality. The operation problem of a small space and the ergonomic problem of the operator are solved. A shape-keeping forming bag 18 mechanism is also provided at the lower part of the upper template 23 to ensure that the preforming is completed with better quality.

[0055] All technical features in this embodiment can be freely combined according to actual needs.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A mold transfer mechanism of a preforming device, comprising a machine body, a fixed platform, a mold located on the fixed platform for placing a preformed material sheet, and a heated preformed capsule connecting mechanism connected to the machine body, characterized in that: A shape-preserving cooling bag connecting mechanism is also arranged beside the heating preforming bag connecting mechanism, and a moving component is also arranged on the fixed platform, through which the mold can be transferred from the heating preforming bag connecting mechanism to below the shape-preserving cooling bag connecting mechanism.

2. The mold transfer mechanism of a preforming device according to claim 1, characterized in that: The moving assembly includes a mounting plate, a screw rod, a guide rail, and a servo motor. The mold is connected to the mounting plate, and the guide rail is connected to the surface of a fixed platform. A slider is also connected to the bottom of the mounting plate, and the slider is slidably connected to the guide rail. The screw rod and the servo motor are both connected in the frame. The screw rod is arranged in parallel at the lower part of the guide rail, and the slider is connected to the screw rod. The servo motor can drive the slider to move along the guide rail.

3. The mold transfer mechanism of a preforming device according to claim 2, characterized in that: The mounting plate is also connected to a heating copper bar, the mold is mounted on the heating copper bar, and a positioning baffle is also arranged between the mold and the heating copper bar.

4. The mold transfer mechanism of a preforming device according to claim 2, characterized in that: The shape-preserving cooling bag connecting mechanism includes a cooling mechanism and a shape-preserving bag mechanism. The cooling mechanism includes a water circulation cooling plate and a cold water tank. The water circulation cooling plate is arranged on the upper surface of the mounting plate. The cold water tank is arranged outside the body. The water circulation cooling plate and the cold water tank are connected through a water pipe.

5. The mold transfer mechanism of the preforming device according to claim 4, characterized in that: The shape-retaining bag mechanism includes a fixed frame, a molding bag, and a sealing plate. The fixed frame is connected to the lower end surface of the upper template. A groove is provided on the outer wall of the fixed frame. The sealing plate also has a protrusion. The molding bag is squeezed between the protrusion and the groove. Sealing strips are provided between the groove and the molding bag, and between the protrusion and the molding bag.

6. The mold transfer mechanism of a preforming device according to claim 5, characterized in that: An insulation box is also arranged outside the fixing frame, and heat insulation cotton is also laid inside the insulation box.

7. The mold transfer mechanism of a preforming device according to claim 1, characterized in that: A vacuum pump is also arranged outside the machine body, and the vacuum pump is connected with the shape-preserving thermal diaphragm mechanism through a pipeline.

8. The mold transfer mechanism of a preforming device according to claim 1, characterized in that: A movable loading platform is also arranged on the side of the fixed platform, a support frame is connected to the upper part of the loading platform, and the loading platform is also connected to the support frame.

9. The mold transfer mechanism of the preforming device according to claim 8, characterized in that: The loading platform is arranged parallel to the fixed platform, and a plurality of universal floating beads are installed on the surface of the loading platform.

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