Die cooling forming device and continuous production system

Abstract

The utility model provides a mould cooling forming device and continuous production system.The mould cooling forming device comprises a fixing frame, a first lifting assembly, a second lifting assembly, a base and a vacuum system, the first lifting assembly and the second lifting assembly are arranged on the upper side and the lower side of the fixing frame respectively, and the first lifting assembly comprises a liftable supporting seat; the second lifting assembly comprises a liftable cover body; the base is arranged between the supporting seat and the cover body, a lower cooling cavity is formed between the supporting seat and the base, an upper cooling cavity is formed between the cover body and the base, the base is provided with a communicating hole and a placing position for placing a mold, the placing position is arranged in the upper cooling cavity, and the lower cooling cavity is communicated with the communicating hole; the cover body and the supporting base are connected with water spraying pipelines communicating with the upper cooling cavity and the lower cooling cavity. The vacuum system comprises a vacuum pump and a vacuum pipeline; the vacuum pump is communicated with the upper cooling cavity and / or the lower cooling cavity through the vacuum pipeline; the die cooling device is high in cooling efficiency and can directly cool the die on the conveying line.

Description

TECHNICAL FIELD

[0001] The utility model relates to the forming technical field, concretely relates to a mould cooling forming device and continuous production system. BACKGROUND

[0002] Expandable thermoplastic materials include, but are not limited to, expandable polystyrene (EPS), expandable polypropylene (EPP), expandable polyolefin (EPO), expandable thermoplastic polyurethane (ETPU) and all other materials that can be physically foamed and formed by heating.

[0003] At present, the forming production of such products usually adopts a single "forming machine" operation mode. In this mode, the mold is fixedly installed on the forming machine, and the position remains unchanged during the entire processing process. The forming machine sequentially performs processes such as mold closing, filling, steam heating, cooling, mold opening and demolding, until the entire production cycle is completed and the product is ejected. This production method has the problems of long production cycle and low efficiency, and due to the repeated switching between heating and cooling states of the same forming machine, it results in large energy consumption and serious energy waste.

[0004] The existing cooling mechanism for plastic product mold production includes a bottom plate, a support, a top plate, a water tank, a water pump, a hose and a spray head. The top plate is arranged above the bottom plate through the support, and the water tank is arranged on the bottom plate. The water tank is connected with a support column, and the lower mold plate is arranged on the support column. The upper mold plate is movably arranged above the lower mold plate. When working, the hydraulic cylinder drives the upper mold plate and the lower mold plate to press together, and the water pump supplies cooling water to the spray head through the hose to cool the mold in a water cooling mode. However, the cooling mechanism is only suitable for the scene where the mold position is fixed, and it is difficult to adapt to the production mode where the mold follows the movement of the conveying assembly. In addition, the cooling water usually relies on the boiling and evaporation process to absorb a large amount of heat, but the boiling point of water is relatively high at standard atmospheric pressure, and if the mold is cooled to a temperature slightly lower than the boiling point, the cooling water is difficult to boil by phase change, not only reducing the cooling efficiency, but also easily leaving water on the surface of the mold, causing the mold to rust easily. SUMMARY

[0005] The first object of the utility model is to provide a mold cooling forming device with high cooling efficiency and capable of directly cooling the mold on the conveying line.

[0006] The second object of the utility model is to provide a continuous production system comprising the above-mentioned mold cooling forming device.

[0007] In order to achieve the above-mentioned first purpose, the utility model provides a mould cooling forming device, including fixed frame, first lifting assembly, second lifting assembly, base and vacuum system, first lifting assembly sets up in the lower part of fixed frame, and first lifting assembly includes the support seat that can move up and down, second lifting assembly sets up in the upper part of fixed frame, and second lifting assembly includes the cover that can move up and down, base sets up between support seat and cover, and support seat is connected with base between the seal and forms lower cooling cavity, and cover is connected with base between the seal and forms upper cooling cavity, and base is provided with the communicating hole and is used for placing the placement site of mould, and the communicating hole is from the middle part of placement site and penetrates the upper and lower sides of base, and placement site sets up in upper cooling cavity, and lower cooling cavity communicates with communicating hole, cover and support seat all are connected with water spraying pipeline, and two water spraying pipelines communicate with upper cooling cavity and lower cooling cavity respectively, and vacuum system includes vacuum pump and vacuum pipeline, and vacuum pump communicates with upper cooling cavity and / or lower cooling cavity through vacuum pipeline.

[0008] From the above scheme can be seen, by setting the support seat that can lift, can the base that carries the mould is lifted from the conveying device, make it temporarily leave the conveying surface of conveying device, it is convenient to carry out cooling operation, after cooling, support seat drops, and the base that carries the mould is placed back on the conveying surface, and it is convenient to move to the next station. Compared with the prior art, the utility model saves the step of manual or mechanical transfer mould, and the operation is more simple. Meanwhile, the upper and lower cooling cavities are arranged in the device, and the mould can be uniformly and efficiently cooled. In addition, through the matched vacuum system, the cooling cavity can be vacuumized after spraying cooling water, a negative pressure environment is formed, the boiling point of the cooling water can be effectively reduced in the negative pressure environment, the cooling water can be rapidly boiled and evaporated at a lower temperature, thereby a large amount of heat is absorbed, the cooling effect is enhanced, and the water residue on the surface of the mould is significantly reduced.

[0009] Further scheme is that the cover is connected with the first vacuum joint, the first vacuum joint communicates with the upper cooling cavity and the vacuum pipeline respectively, and / or the bottom wall of the support seat is connected with the second vacuum joint, the second vacuum joint communicates with the lower cooling cavity and the vacuum pipeline respectively.

[0010] Further scheme is that the cover is provided with a lock rod, and the lock rod extends downward; the support seat is provided with a lock assembly, and the lock rod is detachably connected with the lock assembly.

[0011] From the above scheme can be seen, by setting the lock rod and the lock assembly, it is ensured that the cover and the support seat are closely connected with the base during the cooling process, the high-pressure steam leakage generated during the cooling process is effectively prevented, and the safety of operation is ensured.

[0012] Further scheme is that the lock rod is provided with a plug hole; the lock assembly includes a latch and a lock driving device, and the lock driving device drives the latch to be inserted into the plug hole.

[0013] Further, the mold locking assembly further comprises a lifting seat, a connecting rod and a guide assembly, two ends of the connecting rod are hingedly connected with the lifting seat and the latch respectively, the guide assembly is arranged in the extending direction intersecting with the extending direction of the locking rod, the latch is slidingly arranged in the guide assembly, and the mold locking driving device drives the lifting seat to move up and down to drive the latch to insert into the insertion hole through the connecting rod.

[0014] Further, the top wall of the cover body is provided with an upper water spraying pipe and a plurality of upper nozzles, the upper water spraying pipe is distributed above the placing positions, and the plurality of upper nozzles are arranged along the extending direction of the upper water spraying pipe.

[0015] Further, the top wall of the cover body is provided with an upper water spraying pipe and a plurality of upper nozzles, the upper water spraying pipe is distributed above the placing positions, and the plurality of upper nozzles are arranged along the extending direction of the upper water spraying pipe.

[0016] Further, the top wall of the cover body is provided with an upper water spraying pipe and a plurality of upper nozzles, the upper water spraying pipe is distributed above the placing positions, and the plurality of upper nozzles are arranged along the extending direction of the upper water spraying pipe.

[0017] From the above scheme, through the above arrangement, the cover body, the base and the support seat are accurately positioned.

[0018] Further, the first lifting assembly further comprises a first lifting driving device, a mounting frame, two first lifting frames and a plurality of buffer assemblies, the two first lifting frames are oppositely arranged, the two sides of the mounting frame are connected with the two first lifting frames respectively, the support seat is arranged on the mounting frame, the first lifting driving device drives the two first lifting frames to move up and down synchronously, thereby driving the mounting frame and the support seat to move up and down, and the buffer assembly is connected between the support seat and the mounting frame, so that the support seat can elastically move up and down relative to the mounting frame; the second lifting assembly further comprises a second lifting driving device and two second lifting frames, the two second lifting frames are oppositely arranged, the two sides of the cover body are connected with the two second lifting frames respectively, and the second lifting driving device can drive the two second lifting frames to move up and down synchronously, thereby driving the cover body to move up and down.

[0019] In order to achieve the second purpose, the utility model provides a kind of continuous production system, including conveying component and above-mentioned mold cooling forming device, the conveying surface of conveying component is arranged between cover body and support seat, and base is arranged on conveying surface and can move along the conveying direction of conveying surface. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure diagram of the mold cooling forming device embodiment of the utility model.

[0021] Figure 2Is the exploded view of the cover body, base and support seat in the mold cooling forming device embodiment of the utility model.

[0022] Figure 3 Is the sectional view of the cover body, base and support seat in the mold cooling forming device embodiment of the utility model.

[0023] Figure 4 Is the structure diagram of the cover body in the mold cooling forming device embodiment of the utility model.

[0024] Figure 5 Is the structure diagram of the mold locking assembly in the mold cooling forming device embodiment of the utility model.

[0025] Figure 6 Is the exploded view of the mold locking assembly in the mold cooling forming device embodiment of the utility model.

[0026] Figure 7 Is the top view of the continuous production system embodiment of the utility model.

[0027] Explanation of reference signs:

[0028] 1 - fixed frame;

[0029] 2 - first lifting assembly, 21 - first lifting driving device, 22 - mounting frame, 23 - support seat, 231 - lower water spraying pipe, 232 - lower nozzle, 233 - drain port, 234 - first positioning part, 24 - first lifting frame, 25 - buffer assembly;

[0030] 3 - second lifting assembly, 31 - second lifting driving device, 32 - cover body, 321 - upper water spraying pipe, 322 - upper nozzle, 323 - first vacuum joint, 324 - locking rod, 3241 - plug-in hole, 325 - second positioning cooperation part, 326 - upper water inlet pipe, 33 - second lifting frame;

[0031] 4 - base, 41 - communication hole, 42 - second positioning part;

[0032] 5 - lower cooling cavity;

[0033] 6 - upper cooling cavity;

[0034] 7 - mold, 71 - upper mold, 72 - lower mold, 721 - hollow chamber;

[0035] 8 - mold locking assembly, 81 - bolt, 82 - mold locking driving device, 83 - lifting seat, 84 - connecting rod, 85 - guide assembly;

[0036] 10 - conveying device, 101 - conveying frame, 102 - transplanting machine;

[0037] 20 - filling device, 30 - mold cooling forming device, 40 - demolding device, 50 - heating device.

[0038] The utility model will be further described below in combination with the drawings and embodiments. DETAILED DESCRIPTION

[0039] Mold cooling forming device embodiment:

[0040] Referring to Figures 1 to 4 The mold cooling forming device provided by the embodiment comprises a fixing frame 1, a first lifting assembly 2, a second lifting assembly 3, a base 4 and a vacuum system (not shown in the figure).

[0041] The first lifting assembly 2 is arranged at the lower part of the fixing frame 1, and the first lifting assembly 2 comprises a first lifting driving device 21, a mounting frame 22, a supporting seat 23, two first lifting frames 24 and four buffer assemblies 25. The two first lifting frames 24 are oppositely arranged, and the two sides of the mounting frame 22 are respectively connected with the two first lifting frames 24. The supporting seat 23 is arranged on the mounting frame 22, the first lifting driving device 21 drives the two first lifting frames 24 to move up and down synchronously, thereby driving the mounting frame 22 and the supporting seat 23 to move up and down. The buffer assembly 25 is connected between the supporting seat 23 and the mounting frame 22, so that the supporting seat 23 can move up and down elastically relative to the mounting frame 22.

[0042] The second lifting assembly 3 is arranged at the upper part of the fixing frame 1, and the second lifting assembly 3 comprises a second lifting driving device 31, a cover body 32 and two second lifting frames 33. The two second lifting frames 33 are oppositely arranged, and the two sides of the cover body 32 are respectively connected with the two second lifting frames 33. The second lifting driving device 31 can drive the two second lifting frames 33 to move up and down synchronously, thereby driving the cover body 32 to move up and down.

[0043] The base 4 is arranged between the supporting seat 23 and the cover body 32, and the supporting seat 23 and the bottom wall of the base 4 are sealingly connected and form a lower cooling cavity 5. The cover body 32 and the top wall of the base 4 are sealingly connected and form an upper cooling cavity 6. The base 4 is provided with a communication hole 41 and a placing position for placing a mold 7. The communication hole 41 penetrates through the upper and lower sides of the base 4 from the middle of the placing position. The mold 7 is arranged on the placing position. The upper mold 71 of the mold 7 is arranged in the upper cooling cavity 6. The lower mold 72 of the mold 7 is provided with a hollow chamber 721. The hollow chamber 721 is communicated with the lower cooling cavity 5 through the communication hole 41.

[0044] The cover body 32 and the supporting seat 23 are both connected with water spraying pipes. The two water spraying pipes are respectively communicated with the upper cooling cavity 6 and the lower cooling cavity 5, and are used for spraying cooling water into the upper cooling cavity 6 and the lower cooling cavity 5 respectively. The cooling water of the embodiment is preferably water with a temperature of 25 to 55℃, and the spraying time is about 3 to 30 seconds. Specifically:

[0045] The top wall of the cover 32 is provided with an upper water spray pipe 321 and multiple upper nozzles 322. The upper water spray pipe 321 is distributed above the placement position. The upper water spray pipe 321 includes an outer water pipe and a middle water pipe. The shape of the outer water pipe matches the shape of the upper cooling cavity 6. In this embodiment, it is preferably rectangular. The middle water pipe extends in a "+" shape and connects to the middle of the outer water pipe, and the ends of the middle water pipe are all connected to the outer water pipe. Several upper water inlet pipes 326 are connected to the outer water pipe. The upper water inlet pipes 326 extend out of the outside of the cover 32 for communication with the water supply device on the outside. All upper water inlet pipes 326 are connected through a connecting pipe to ensure that each upper water inlet pipe 326 supplies water to the upper cooling cavity 6 at the same time. Multiple upper nozzles 322 are arranged along the respective extension directions of the outer water pipe and the middle water pipe. And two adjacent upper nozzles 322 are arranged at an inward and outward angle, respectively.

[0046] The support base 23 is equipped with a lower water spray pipe 231 and multiple lower nozzles 232. The lower water spray pipe 231 is arranged below the connecting hole 41 and extends in a rectangular shape. The multiple lower nozzles 232 are arranged along the extension direction of the lower water spray pipe 231, and adjacent lower nozzles 232 are inclined inward and outward respectively. A drain outlet 233 is provided in the middle of the support base 23 for draining excess water.

[0047] The vacuum system includes a vacuum pump (not shown in the figure) and at least two vacuum pipes (not shown in the figure). The vacuum pump is connected to the upper cooling chamber 6 and the lower cooling chamber 5 through the two vacuum pipes, respectively. This allows for evacuation of the upper cooling chamber 6 and the lower cooling chamber 5 after the first preset time of cooling water spraying. On the one hand, this quickly removes the large amount of steam and heat generated during the cooling process, achieving rapid cooling. On the other hand, it maintains a stable negative pressure of -0.3 bar to -0.8 bar in the upper cooling chamber 6 and the lower cooling chamber 5 for a second preset time. Under this negative pressure environment, even if the temperature of the mold 7 is slightly lower than the boiling point of water under standard atmospheric pressure, the boiling point of the residual cooling water will also decrease, allowing it to boil and vaporize at a low temperature. This utilizes the latent heat of phase change to further enhance the cooling effect, significantly improving cooling efficiency and effectively reducing the amount of residual cooling water on the mold surface.

[0048] A first vacuum connector 323 is connected to the cover 32, and the first vacuum connector 323 is connected to the upper cooling chamber 6 and the vacuum pipe. The first vacuum connector 323 is located in the middle of the top wall of the cover 32. The first vacuum connector 323 can also be used as a steam exhaust port during the cooling process.

[0049] A second vacuum connector is connected to the bottom wall of the support base 23. The second vacuum connector is connected to the lower cooling chamber 5 and the vacuum pipe. The second vacuum connector can also serve as a steam vent and an outlet 233 for excess cooling water during the cooling process.

[0050] SeeFigures 5 to 6 , and in combination Figure 2 Two locking rods 324 are arranged on opposite sides of the cover 32, and protrude downward from the bottom wall of the cover 32. The locking rods 324 can extend to the support base 23 through the base 4. The locking rods 324 are provided with insertion holes 3241 extending through the thickness direction of the locking rods 324.

[0051] Two mold locking assemblies 8 are arranged on opposite sides of the support base 23, and the mold locking assemblies 8 are arranged in one-to-one correspondence with the locking rods 324, and the locking rods 324 and the mold locking assemblies 8 are detachably connected. The mold locking assembly 8 comprises a latch 81, a mold locking driving device 82, a lifting seat 83, a connecting rod 84 and a guide assembly 85. The two ends of the connecting rod 84 are respectively hinged to the lifting seat 83 and the latch 81. The guide assembly 85 is arranged on the bottom wall of the support base 23, and the guide assembly 85 is provided with a guide groove extending in the extending direction thereof. The extending direction of the guide groove intersects with the extending direction of the locking rod 324, and preferably, the guide groove extends in the horizontal direction. The latch 81 is slidingly arranged in the guide groove, and one end of the latch 81 can protrude out of the guide groove. The mold locking driving device 82 is preferably a pneumatic cylinder, and the mold locking driving device 82 drives the lifting seat 83 to move up and down, so as to drive the latch 81 to move horizontally through the connecting rod 84, so that one end of the latch 81 can be inserted into the insertion hole 3241.

[0052] In other embodiments, the mold locking driving device can also directly drive the latch to move horizontally, which is not limited herein.

[0053] In Figure 2 , the support base 23 is provided with a plurality of first positioning portions 234, the base 4 is provided with a plurality of first positioning matching portions and a plurality of second positioning portions 42, and the first positioning matching portions are positioned and matched with the first positioning portions 234. One of the first positioning portions 234 and the first positioning matching portions is a positioning column, and the other is a positioning hole.

[0054] The cover 32 is provided with a plurality of second positioning matching portions 325, and the second positioning matching portions 325 are positioned and matched with the second positioning portions 42. One of the second positioning portions 42 and the second positioning matching portions 325 is a positioning column, and the other is a positioning hole.

[0055] Continuous production system embodiment:

[0056] Referring to Figure 7The continuous production system comprises a conveying device 10, a filling device 20, a heating device 50, a demolding device 40 and the mold cooling and forming device 30 of the above embodiment.

[0057] The conveying route of the conveying device 10 is in a closed loop type or a linear loop type, so that the product can be continuously formed.

[0058] The closed loop type of the embodiment is a rectangular loop type, and the conveying device 10 comprises four conveying frames 101 and four transplanters 102.

[0059] In another embodiment, the closed loop type is a circular loop type, and the conveying device comprises a rotating disc capable of rotating around its own axis.

[0060] In another embodiment, the conveying route of the conveying device is in a linear loop type, and the conveying device comprises two conveying frames and two elevators.

[0061] As can be seen from the above, the supporting seat 23 can be raised and lowered, the base carrying the mold can be lifted from the conveying device 10, and the conveying surface of the conveying device 10 can be temporarily left, so that the cooling operation is facilitated.

[0062] Finally, it needs to be emphasized that the above 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 can have various changes and modifications. 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 cooling molding apparatus characterized by, The utility model relates to a mould cooling forming device, including: Fixed frame; First lifting assembly, first lifting assembly sets up in the lower part of fixed frame, first lifting assembly includes the support seat that can move up and down; Second lifting assembly, second lifting assembly sets up in the upper portion of fixed frame, second lifting assembly includes the cover body that can move up and down; Base is arranged between support seat and cover body, support seat is sealedly connected with base and forms lower cooling cavity, cover body is sealedly connected with base and forms upper cooling cavity, base is provided with the placement site for placing mould and the communication hole, the communication hole passes through the upper and lower sides of base from the middle part of placement site, placement site is arranged in upper cooling cavity, lower cooling cavity communicates with communication hole; Cover body and support seat are connected with water spraying pipeline, and two water spraying pipelines are communicated with upper cooling cavity and lower cooling cavity respectively; Vacuum system, vacuum system includes vacuum pump and vacuum pipeline, vacuum pump communicates with upper cooling cavity and / or lower cooling cavity through vacuum pipeline.

2. The mold cooling forming device according to claim 1, wherein: A first vacuum connector is connected to the cover body, and the first vacuum connector is communicated with the upper cooling cavity and the vacuum pipeline respectively; And / or, a second vacuum connector is connected to the bottom wall of the support seat, and the second vacuum connector is communicated with the lower cooling cavity and the vacuum pipeline respectively.

3. The mold cooling forming device according to claim 1, wherein: The cover body is provided with a locking rod, and the locking rod extends downwardly; The support seat is provided with a mold locking assembly, and the locking rod is detachably connected with the mold locking assembly.

4. The mold cooling forming device according to claim 3, wherein: The locking rod is provided with an insertion hole; The mold locking assembly comprises a locking pin and a mold locking driving device, and the mold locking driving device drives the locking pin to be inserted into the insertion hole.

5. The mold cooling forming device according to claim 4, wherein: The mold locking assembly further comprises a lifting seat, a connecting rod and a guide assembly, two ends of the connecting rod are hingedly connected with the lifting seat and the locking pin respectively, the extending direction of the guide assembly intersects with the extending direction of the locking rod, the locking pin is slidingly arranged in the guide assembly, and the mold locking driving device drives the lifting seat to move up and down so as to drive the locking pin to be inserted into the insertion hole through the connecting rod.

6. The mold cooling forming device according to claim 1, wherein: The top wall of the cover body is provided with an upper water spraying pipe and a plurality of upper nozzles, the upper water spraying pipe is distributed above the placement site, and the plurality of upper nozzles are arranged along the extending direction of the upper water spraying pipe.

7. The mold cooling forming device according to claim 1, wherein: The support seat is provided with a lower water spraying pipe and a plurality of lower nozzles, the lower water spraying pipe is distributed below the communication hole, and the plurality of lower nozzles are arranged along the extending direction of the lower water spraying pipe.

8. The mold cooling forming device according to claim 1, wherein: The support seat is provided with a first positioning part; The base is provided with a first positioning matching part and a second positioning part, the first positioning matching part is positioned and matched with the first positioning part; The cover is provided with a second positioning matching part, the second positioning matching part is positioned and matched with the second positioning part.

9. The mold cooling forming device according to claim 1, characterized in that: The first lifting assembly further comprises a first lifting driving device, a mounting frame, two first lifting frames and a plurality of buffer assemblies, the two first lifting frames are oppositely arranged, the two sides of the mounting frame are connected with the two first lifting frames respectively, the support seat is arranged on the mounting frame, the first lifting driving device drives the two first lifting frames to move up and down synchronously, thereby driving the mounting frame and the support seat to move up and down, and the buffer assemblies are connected between the support seat and the mounting frame, so that the support seat can move up and down elastically relative to the mounting frame; The second lifting assembly further comprises a second lifting driving device and two second lifting frames, the two second lifting frames are oppositely arranged, the two sides of the cover are connected with the two second lifting frames respectively, and the second lifting driving device can drive the two second lifting frames to move up and down synchronously, thereby driving the cover to move up and down.

10. A continuous production system characterized by: The mold cooling forming device according to any one of claims 1 to 9 is included in a conveying assembly, a conveying surface of the conveying assembly is arranged between the cover and the support seat, and the base is arranged on the conveying surface and can move along the conveying direction of the conveying surface.

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