Die thermoforming device and continuous production system

Abstract

The utility model provides a mould thermoforming device and continuous production system.The mould thermoforming device comprises a fixing frame, a first lifting assembly, a second lifting assembly and a base, the first lifting assembly and the second lifting assembly are arranged on the upper portion and the lower portion of the fixing frame respectively, and the first lifting assembly comprises a supporting seat capable of moving up and down; the second lifting assembly comprises a cover body capable of moving up and down; the base is arranged between the supporting seat and the cover body, the supporting seat and the base are in sealed connection to form a lower heating cavity, the cover body and the base are in sealed connection to form an upper heating cavity, the base is provided with a communicating hole and a placing position used for placing a mold, the communicating hole penetrates through the upper side and the lower side of the base from the middle of the placing position, and the placing position is arranged in the upper heating cavity. The lower heating cavity is communicated with the communicating hole; the cover body and the supporting seat are both connected with air inlet and outlet pipelines, and the two air inlet and outlet pipelines communicate with the lower heating cavity and the upper heating cavity correspondingly. The heating device can be used for directly heating the die translated by the conveying device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the forming technical field, concretely relates to a mould heating 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 whole processing process. The forming machine sequentially performs processes such as mold closing, filling, steam heating, cooling, mold opening and demolding, until the whole 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 of the same forming machine between heating and cooling states, it leads to large energy consumption and causes serious energy waste.

[0004] Mold heating usually uses steam as a heat source. According to specific processing requirements and material properties, the temperature and pressure of the steam are adjusted, and the steam enters the mold through fixed pipelines to make the material in the forming cavity complete foaming and forming under high temperature conditions.

[0005] At present, an EPS plate forming machine mold heating forming device includes a U-shaped chamber and an upper cover plate. The forming mold is placed in the U-shaped chamber, and the upper cover plate is located above the forming mold. The steam generated by the external steam machine is transported to the U-shaped chamber through the pipeline, thereby heating the forming mold and the foam plate inside it. However, during the feeding and discharging process, the forming mold needs to be hoisted in and out of the U-shaped chamber with the help of manual or mechanical devices, which leads to inconvenient operation and low production efficiency.

[0006] Therefore, it is urgent to provide a mold heating forming device that can directly heat the mold conveyed by the conveying device, in order to optimize the production process and improve the work efficiency. UTILITY MODEL CONTENTS

[0007] The first object of the utility model is to provide a mold heating forming device that can directly heat the mold translated by the conveying device.

[0008] The second object of the utility model is to provide a continuous production system containing the above-mentioned mold heating forming device.

[0009] In order to realize the above-mentioned first purpose, the utility model provides a mould heating forming device, including fixed frame, first lifting assembly, second lifting assembly and base, 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 sets up in the upper part of fixed frame, second lifting assembly includes the cover that can move up and down, base sets up between support seat and cover, support seat is sealedly connected with base and forms lower heating cavity, cover is sealedly connected with base and forms upper heating cavity, base is provided with the communicating hole and is used for placing the placement site of mould, the communicating hole is from the middle part of placement site and penetrates the upper and lower sides of base, placement site sets up in upper heating cavity, lower heating cavity communicates with communicating hole, cover and support seat all are connected with the air intake and exhaust pipeline, and two air intake and exhaust pipelines communicate with upper heating cavity and lower heating cavity respectively.

[0010] From the above scheme can see, by setting up the support seat that can move up and down and cover, when support seat rises, will be from the conveying device and lift the base loaded with mould, make it temporarily leave conveying surface, and simultaneously cover and base between, and support seat and base between respectively form upper and lower heating cavity, by respectively injecting steam into upper and lower heating cavity, realize the even heating of mould, ensure that the filling material in mould is even heated and foaming, thereby significantly improve production efficiency and product consistency.

[0011] Further scheme is, cover is connected with upper air intake and exhaust pipeline, cover is provided with upper air inlet pipe, upper baffle and multiple upper air inlet holes, upper air intake and exhaust pipeline communicates with upper air inlet pipe, upper air inlet pipe sets up on the top wall of cover, upper air inlet hole penetrates the top wall of cover, multiple upper air inlet holes are arranged along the extension direction of upper air inlet pipe, upper air inlet pipe communicates with upper heating cavity through upper air inlet hole, upper baffle sets up in cover and sets up below multiple upper air inlet holes along the arrangement direction of multiple upper air inlet holes, and upper baffle and multiple upper air inlet holes form upper passageway that communicates with upper heating cavity.

[0012] From the above scheme can see, steam enters into upper heating cavity through upper air intake and exhaust pipeline, upper air inlet pipe and upper air inlet hole, and the upper baffle set up in upper heating cavity will block steam and make it even spread to all around, thereby ensure that steam can even fill the whole upper heating cavity.

[0013] Further scheme is, support seat is connected with lower air intake and exhaust pipeline, support seat includes the bottom plate and closure plate that set up up and down, and the lower air inlet passage is arranged between the closure plate and the bottom plate, and the lower air intake and exhaust pipeline communicates with the lower air inlet passage, and the closure plate is provided with a lower baffle and multiple lower air inlet holes, and the lower air inlet hole penetrates the closure plate, and multiple lower air inlet holes are arranged along the extension direction of the lower air inlet passage, and the lower air inlet passage communicates with the lower heating cavity through the lower air inlet hole, and the lower baffle sets up above multiple lower air inlet holes and extends along the arrangement direction of multiple lower air inlet holes, and the lower baffle and multiple lower air inlet holes form lower passageway that communicates with the lower heating cavity.

[0014] From the above scheme, the steam enters the lower heating cavity through the lower exhaust pipeline, the lower air inlet passage and the lower air inlet hole; the lower partition in the lower heating cavity blocks the steam and makes it spread around, thereby ensuring that the steam uniformly fills the entire lower heating cavity and achieving uniform heating.

[0015] Further, the support seat is connected with a drainage pipeline; the closure plate is provided with a main drainage opening and a drainage groove, the main drainage opening is arranged in the middle of the closure plate, and the drainage groove extends from the edge of the closure plate to the main drainage opening and communicates with the main drainage opening; the bottom plate is provided with a main drainage connector and a secondary drainage opening, the main drainage connector communicates with the main drainage opening, the secondary drainage opening communicates with the lower air inlet passage, and the main drainage connector and the secondary drainage opening both communicate with the drainage pipeline.

[0016] From the above scheme, the main drainage opening and the secondary drainage opening are arranged to effectively drain the condensed water; the main drainage opening is responsible for draining the condensed water in the lower heating cavity; and the secondary drainage opening is responsible for draining the condensed water in the lower air inlet passage.

[0017] Further, the top wall and / or the side wall of the cover body are provided with a first electric heating plate; the support seat is provided with a second electric heating plate and a steam thickness reducer, and the steam thickness reducer extends upward through the communication hole.

[0018] From the above scheme, the first electric heating plate and the second electric heating plate are arranged to provide heat preservation for the upper and lower heating cavities; and the steam thickness reducer can extend into the hollow chamber of the lower mold to reduce the volume of the hollow chamber, thereby reducing the use volume of the steam and saving the amount of steam used.

[0019] Further, the cover body is provided with a locking rod extending downward; the support seat is provided with a mold locking assembly, and the locking rod is detachably connected with the mold locking assembly.

[0020] From the above scheme, when the cover body is connected with the base by moving downward, the locking rod is locked and connected with the mold locking assembly to ensure the sealing of the upper and lower heating cavities.

[0021] Further, the locking rod is provided with a plug hole; the mold locking assembly includes a latch and a mold locking driving device, and the mold locking driving device drives the latch to be inserted into the plug hole.

[0022] From the above scheme, the locking rod and the mold locking assembly are locked and connected by a mechanical method, which has the advantages of stable structure and safe and reliable.

[0023] 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 intersected 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, so that the latch is inserted into the insertion hole through the connecting rod.

[0024] 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, two sides of the mounting frame are connected with the two first lifting frames respectively, the supporting seat is arranged on the mounting frame, the first lifting driving device can drive the two first lifting frames to synchronously move up and down to drive the supporting seat to move, and the buffer assembly is connected between the supporting seat and the mounting frame, so that the supporting seat can elastically move up and down relative to the mounting frame.

[0025] In order to realize the second purpose, the utility model provides a kind of continuous production system, including conveying device and above-mentioned mold heating forming device, the conveying surface of conveying device is arranged between cover body and supporting seat, and base is arranged on conveying surface and moves along with it. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the structure diagram of the mold heating forming device embodiment of the utility model.

[0027] Figure 2 It is the top view of cover body, base, mold and supporting seat in the mold heating forming device embodiment of the utility model.

[0028] Figure 3 It is Figure 2 Sectional view at A-A in

[0029] Figure 4 It is the exploded view of cover body, base, mold and supporting seat in the mold heating forming device embodiment of the utility model.

[0030] Figure 5 It is the sectional view in horizontal direction of cover body in the mold heating forming device embodiment of the utility model.

[0031] Figure 6 It is the sectional view in vertical direction of cover body in the mold heating forming device embodiment of the utility model.

[0032] Figure 7 It is the structure diagram of base in the mold heating forming device embodiment of the utility model.

[0033] Figure 8 is the exploded view of the first perspective view of the support seat in the mold heating forming device embodiment of the utility model.

[0034] Figure 9 is the exploded view of the second perspective view of the support seat in the mold heating forming device embodiment of the utility model.

[0035] Figure 10 is the exploded view of the mold locking assembly in the mold heating forming device embodiment of the utility model.

[0036] Figure 11 is the top view of the continuous production system embodiment of the utility model.

[0037] Mark explanation:

[0038] 1-fixed frame;

[0039] 2-first lifting assembly, 21-first lifting driving device, 22-mounting frame, 23-support seat, 231-closing plate, 2311-lower air inlet hole, 2312-main drainage port, 2313-drainage groove, 2314-groove, 232-bottom plate, 2321-main drainage connector, 2322-vice drainage port, 233-lower air inlet passage, 234-air inlet connector, 235-lower partition, 236-second electric heating plate, 237-steam thickness reducer, 24-first lifting frame, 25-buffering assembly, 26-lower air inlet and exhaust pipeline;

[0040] 3-second lifting assembly, 31-second lifting driving device, 32-shield body, 321-upper air inlet pipe, 3211-horizontal air inlet pipe, 3212-longitudinal air inlet pipe, 322-upper partition, 323-upper air inlet hole, 324-locking rod, 3241-insertion hole, 33-second lifting frame, 34-upper air inlet and exhaust pipeline, 35-first electric heating plate;

[0041] 4-base;

[0042] 5-mold, 51-upper mold, 52-lower mold, 53-hollow chamber;

[0043] 6-upper heating cavity;

[0044] 7-lower heating cavity;

[0045] 8-mold locking assembly, 81-latch, 82-lifting seat, 83-connecting rod, 84-guiding assembly, 85-mold locking driving device;

[0046] 10-conveying device, 101-conveying frame, 102-transplanter;

[0047] 20-filling device;

[0048] 30 - cooling device;

[0049] 40 - demolding device;

[0050] 50 - mold heating forming device.

[0051] The utility model will be further described below in combination with the drawings and embodiments. DETAILED DESCRIPTION

[0052] Mold heating forming device embodiment:

[0053] Referring to Figures 1 to 4 , in combination Figure 11 The mold heating forming device provided by the embodiment comprises a fixing frame 1, a first lifting assembly 2, a second lifting assembly 3 and a base 4.

[0054] 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 support seat 23, two first lifting frames 24 and four buffer assemblies 25. The two first lifting frames 24 are oppositely arranged, the two sides of the mounting frame 22 are respectively connected with the two first lifting frames 24, the support seat 23 is arranged on the mounting frame 22, and the first lifting driving device 21 can drive the two first lifting frames 24 to move synchronously up and down to drive the support seat 23 to move up and down. The buffer assembly 25 is connected between the support seat 23 and the mounting frame 22, so that the support seat 23 can move up and down elastically relative to the mounting frame 22.

[0055] 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, the two sides of the cover body 32 are respectively connected with the two second lifting frames 33, and the second lifting driving device 31 drives the two second lifting frames 33 to move synchronously up and down through a transmission mechanism, thereby driving the cover body 32 to move up and down.

[0056] The base 4 is arranged between the support seat 23 and the cover body 32, and the base 4 can be arranged on the conveying surface of the conveying device 10 and move along the conveying surface of the conveying device 10. The mold 5 is arranged on the base 4 and moves with the base 4. The support seat 23 can lift the base 4 and the mold 5 thereon upward from the lower side of the conveying surface, facilitating the heating operation of the mold 5.

[0057] The support base 23 is sealingly connected between the bottom wall of the base 4 and forms the lower heating cavity 7; the cover body 32 is sealingly connected between the top wall of the base 4 and forms the upper heating cavity 6. The base 4 is provided with four communication holes and four placing positions, the communication holes penetrating through the upper and lower sides of the base 4 from the middle of the placing positions, and the placing positions are arranged in the upper heating cavity 6. The mold 5 is arranged in the placing position and in the upper heating cavity 6. The mold 5 comprises an upper mold 51 and a lower mold 52, and a product forming cavity is formed between the upper mold 51 and the lower mold 52. The inside of the lower mold 52 is provided with a downwardly open hollow chamber 53. The lower heating cavity 7 is in communication with the hollow chamber 53 through the communication hole, which facilitates the steam in the lower heating cavity 7 to enter the hollow chamber 53 to heat the lower mold 52.

[0058] The upper mold 51 and / or the lower mold 52 is provided with a plurality of air holes (not shown in the figure), the air holes penetrating through the side wall of the upper mold 51 and / or the lower mold 52 and being in communication with the product forming cavity. The air holes have a small diameter, so that the steam can enter the air holes, and the material in the product forming cavity cannot enter the air holes, which is beneficial to improve the heating efficiency of the steam.

[0059] The cover body 32 and the support base 23 are both connected with an air inlet and outlet pipeline, and the two air inlet and outlet pipelines are in communication with the upper heating cavity 6 and the lower heating cavity 7 respectively. The air inlet and outlet pipeline is connected with a pressure regulating valve.

[0060] Referring to Figure 5 and Figure 6 , the cover body 32 is connected with an upper air inlet and outlet pipeline 34.

[0061] The cover body 32 is provided with a plurality of upper air inlet pipes 321, a plurality of upper barriers 322 and a plurality of upper air inlet holes 323. The plurality of upper air inlet pipes 321 are distributed on the top wall of the cover body 32, and the plurality of upper air inlet pipes 321 comprise two transverse air inlet pipes 3211 and three longitudinal air inlet pipes 3212, the three longitudinal air inlet pipes 3212 are connected between the two transverse air inlet pipes 3211, and the two ends of each longitudinal air inlet pipe 3212 are in communication with the two transverse air inlet pipes 3211 respectively. One of the transverse air inlet pipes 3211 is also in communication with the upper air inlet and outlet pipeline 34.

[0062] The upper air inlet holes 323 penetrate through the top wall of the cover body 32, and the plurality of upper air inlet holes 323 are arranged along the extension direction of the transverse air inlet pipes 3211 and the longitudinal air inlet pipes 3212. The transverse air inlet pipes 3211 and the longitudinal air inlet pipes 3212 are in communication with the upper heating cavity 6 through the upper air inlet holes 323.

[0063] The upper partition 322 is suspended below the top wall of the cover body 32. Specifically, the upper partition 322 is arranged below the upper air inlet holes 323 and extends along the arrangement direction of the plurality of upper air inlet holes 323. An upper passage communicating with the upper heating chamber 6 is formed between the upper partition 322 and the upper air inlet holes 323. The upper passage extends around the upper air inlet holes 323, facilitating the steam to be blocked by the upper partition 322 after passing through the upper air inlet holes 323 and then dispersing around, ensuring uniform heat distribution in the upper heating chamber 6. Multiple through holes may be formed in the upper partition 322, which can block part of the steam and ensure that another part of the steam passes through the through holes and directly enters the upper heating chamber 6.

[0064] The first electric heating plates 35 are arranged on the top wall and / or side wall of the cover body 32. In this embodiment, preferably, a plurality of first electric heating plates 35 are arranged on both the top wall and the side wall of the cover body 32 at the same time, and the first electric heating plates 35 are thermally connected to the cover body 32. The first electric heating plates 35 generate heat and transfer the heat to the upper heating chamber 6 through the cover body 32, enabling the upper heating chamber 6 to maintain a heat preservation state for a long time and ensuring the heating efficiency and time of the mold 5. The plurality of first electric heating plates 35 on the top wall are arranged between the transverse air inlet pipe 3211 and the longitudinal air inlet pipe 3212.

[0065] See Figures 7 to 9 , the support base 23 is connected to the lower air inlet and exhaust pipeline 26.

[0066] The support base 23 includes a closing plate 231 and a bottom plate 232 arranged up and down. A lower air inlet passage 233 is arranged between the closing plate 231 and the bottom plate 232. Preferably, a "return" - shaped groove 2314 is formed on the bottom wall of the closing plate 231, the notch of the groove 2314 is arranged downward, and sealing rings are arranged around the groove 2314. The sealing rings are hermetically connected to the bottom plate 232 to seal the notch of the groove 2314, and this groove 2314 is part of the lower air inlet passage 233. A plurality of air inlet joints 234 are formed on the bottom plate 232, and the air inlet joints 234 are respectively communicated with the lower air inlet and exhaust pipeline 26 and the groove 2314.

[0067] The closing plate 231 is provided with a plurality of lower baffles 235 and a plurality of lower air inlets 2311. The lower air inlets 2311 penetrate through the thickness direction of the closing plate 231, and the plurality of lower air inlets 2311 are arranged along the extension direction of the grooves 2314, and the grooves 2314 communicate with the lower heating cavity 7 through the lower air inlets 2311. The lower baffles 235 are arranged on the top wall of the closing plate 231, specifically arranged above the lower air inlets 2311 and extend along the arrangement direction of the plurality of lower air inlets 2311, and the lower baffles 235 and the lower air inlets 2311 form a lower passage communicating with the lower heating cavity 7. The lower passage extends around the lower air inlets 2311, facilitating the steam to be blocked by the lower baffles 235 after passing through the lower air inlets 2311, and then dispersed in all directions, ensuring uniform distribution of heat in the lower heating cavity 7. A plurality of perforations can be formed on the lower baffles 235, which can block part of the steam and ensure that another part of the steam directly enters the lower heating cavity 7 through the perforations.

[0068] The support seat 23 is provided with a plurality of second electric heating plates 236 and four steam thickness reduction bodies 237. The number of steam thickness reduction bodies 237 is equal to the number of molds 5, and the steam thickness reduction bodies 237 are arranged one by one corresponding to the molds 5. The steam thickness reduction body 237 penetrates through the communication hole and extends into the hollow chamber 53 of the lower mold 52. The top wall and all side walls of the steam thickness reduction body 237 have a certain gap with the corresponding cavity wall of the hollow chamber 53, ensuring that the steam entering the hollow chamber 53 can directly contact each cavity wall of the hollow chamber 53. The arrangement of the steam thickness reduction body can reduce the use volume of steam while ensuring the heating effect of the steam, which is beneficial to save the amount of steam. The second electric heating plate 236 is arranged between the closing plate 231 and the bottom plate 232, and the steam thickness reduction body 237 is arranged above and below the second electric heating plate 236. The second electric heating plate 236 is in heat conduction connection with the closing plate 231, and the second electric heating plate 236 heats and transmits heat to the lower heating cavity 7 through the closing plate 231.

[0069] The support seat 23 is connected with a drainage pipeline. The closing plate 231 is provided with a main drainage port 2312 and a drainage groove 2313. The main drainage port 2312 is arranged in the middle of the closing plate 231, and the drainage groove 2313 extends from the edge of the closing plate 231 to the main drainage port 2312 and communicates with the main drainage port 2312. The bottom plate 232 is provided with a main drainage connector 2321 and a secondary drainage port 2322. The main drainage connector 2321 communicates with the main drainage port 2312, and the secondary drainage port 2322 communicates with the groove 2314. The main drainage connector 2321 and the secondary drainage port 2322 both communicate with the drainage pipeline. The main drainage connector 2321 can be used for drainage, injection and discharge of steam.

[0070] Referring to Figure 5 , Figure 7 and Figure 10Two locking rods 324 are arranged on opposite sides of the cover body 32, and the locking rods 324 extend downward and protrude from the bottom wall of the cover body 32.

[0071] The support base 23 is provided with a mold locking assembly 8 on each of the opposite sides, and the mold locking assembly 8 is arranged in one-to-one correspondence with the locking rod 324. The locking rod 324 is detachably connected with the mold locking assembly 8, so as to ensure that the cover body 32 is fixedly connected with the support base 23 during the heating and fusion process. Specifically,

[0072] The locking rod 324 is provided with a plug-in hole 3241 penetrating through the thickness direction of the locking rod 324.

[0073] The mold locking assembly 8 comprises a latch 81, a lifting seat 82, a connecting rod 83, a guide assembly 84 and a mold locking driving device 85. The two ends of the connecting rod 83 are respectively hinged to the lifting seat 82 and the latch 81. The guide assembly 84 is arranged on the bottom wall of the support base 23, and the guide assembly 84 is provided with a guide groove 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 85 is preferably a pneumatic cylinder, and the mold locking driving device 85 drives the lifting seat 82 to move up and down, so as to drive the latch 81 to move horizontally through the connecting rod 83, so that one end of the latch 81 can be inserted into the plug-in hole 3241.

[0074] In other embodiments, the mold locking driving device can also directly drive the latch to move horizontally, which is not limited herein.

[0075] Embodiment of continuous production system:

[0076] Referring to Figure 11 The continuous production system provided in the embodiment comprises a conveying device 10, a filling device 20, a cooling device 30, a demolding device 40 and the mold heating and forming device 50 of the above embodiment. The filling device 20, the mold heating and forming device 50, the cooling device 30 and the demolding device 40 are respectively arranged in the conveying range of the conveying device 10. The base 4 and the mold 5 are arranged on the conveying device 10 and can move along the conveying direction of the conveying device 10, so as to sequentially enter the filling device 20, the mold heating and forming device 50, the cooling device 30 and the demolding device 40, and to be circulated and conveyed.

[0077] The conveying route of the conveying device 10 is arranged in a closed loop type or a linear loop type, so as to realize the function of circulating conveying and ensure the continuous forming production of the product.

[0078] The closed circulation type of the embodiment is a rectangular circulation type, and the conveying device 10 comprises four conveying frames 101 and four transplanters 102.

[0079] In another embodiment, the closed circulation type is a circular circulation type, and the conveying device comprises a rotating disc capable of rotating around its own axis, the filling device, the mold heating and forming device, the cooling device and the demolding device are sequentially arranged around the rotating disc, and a plurality of molds are arranged on the rotating disc and follow the rotation.

[0080] In yet another embodiment, the conveying route of the conveying device is set as a linear circulation type, and the conveying device comprises two conveying frames and two elevators, the two conveying frames are arranged in an up-down manner, the two elevators are arranged at the two ends of the conveying frames, and the filling frame moves up and down between the two conveying frames to realize the circulation movement of the molds between the two conveying frames.

[0081] As can be seen from the above, the utility model discloses a support seat 23 and cover 32 that can move up and down are arranged, when the support seat 23 rises, the base 4 loaded with the mold 5 is lifted from the conveying device 10 to temporarily leave the conveying surface, heating operation is facilitated, and the support seat 23 and the base 4 and the cover 32 and the base 4 form upper and lower heating cavities respectively; by injecting steam into the upper and lower heating cavities respectively, uniform heating of the mold 5 is realized, the filling material in the mold 5 is uniformly heated and foamed, and therefore the production efficiency and product consistency are significantly improved.

[0082] Finally, it needs to be emphasized that the above is only the preferred embodiment of the utility model and is not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A mold heating forming apparatus, characterized by, The utility model relates to a mould heating forming device, including: A fixed frame; First lifting assembly, first lifting assembly is arranged 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 is arranged in the upper part 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 heating cavity, cover body is sealedly connected with base and forms upper heating 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 heating cavity, lower heating cavity communicates with communication hole; Cover body and support seat are connected with the air intake and exhaust pipeline, and the air intake and exhaust pipeline is communicated with upper heating cavity and lower heating cavity respectively.

2. The mould heating forming device according to claim 1, wherein: The cover body is connected with an upper air intake and exhaust pipeline; The cover body is provided with an upper air inlet pipe, an upper baffle and a plurality of upper air inlet holes, the upper air intake and exhaust pipeline is communicated with the upper air inlet pipe, the upper air inlet pipe is arranged on the top wall of the cover body, the upper air inlet holes pass through the top wall of the cover body, a plurality of the upper air inlet holes are arranged along the extension direction of the upper air inlet pipe, the upper air inlet pipe is communicated with the upper heating cavity through the upper air inlet holes, the upper baffle is arranged in the cover body and is arranged below the upper air inlet holes along the arrangement direction of a plurality of the upper air inlet holes, the upper baffle and the upper air inlet holes form an upper passage communicated with the upper heating cavity.

3. The mould heating forming device according to claim 1, wherein: The support seat is connected with a lower air intake and exhaust pipeline; The support seat includes an upper and lower arranged closing plate and bottom plate, a lower air inlet passage is arranged between the closing plate and the bottom plate, the lower air intake and exhaust pipeline is communicated with the lower air inlet passage, the closing plate is provided with a lower baffle and a plurality of lower air inlet holes, the lower air inlet holes pass through the closing plate, a plurality of the lower air inlet holes are arranged along the extension direction of the lower air inlet passage, the lower air inlet passage is communicated with the lower heating cavity through the lower air inlet holes, the lower baffle is arranged above the lower air inlet holes and extends along the arrangement direction of a plurality of the lower air inlet holes, the lower baffle and the lower air inlet holes form a lower passage communicated with the lower heating cavity.

4. The mould heating forming device according to claim 3, wherein: The support seat is connected with a drainage pipeline; The closing plate is provided with a main drainage port and a drainage groove, the main drainage port is arranged in the middle part of the closing plate, the drainage groove extends from the edge of the closing plate to the main drainage port and is communicated with the main drainage port; The bottom plate is provided with a main drainage connector and a secondary drainage port, the main drainage connector is communicated with the main drainage port, the secondary drainage port is communicated with the lower air inlet passage, the main drainage connector and the secondary drainage port are communicated with the drainage pipeline.

5. The mold heating forming device according to claim 1, wherein: a first electric heating plate is arranged on the top wall and / or the side wall of the cover body; a second electric heating plate and a steam thickness reducer are arranged on the support base, and the steam thickness reducer extends upward through the communication hole.

6. The mold heating forming device according to claim 1, wherein: the cover body is provided with a locking rod extending downward; and the support base is provided with a mold locking assembly, and the locking rod is detachably connected with the mold locking assembly.

7. The mold heating forming device according to claim 6, wherein: the locking rod is provided with a plug hole; and the mold locking assembly comprises a plug pin and a mold locking driving device, and the mold locking driving device drives the plug pin to be inserted into the plug hole.

8. The mold heating forming device according to claim 7, wherein: the mold locking assembly further comprises a lifting seat, a connecting rod and a guide assembly, two ends of the connecting rod are respectively hinged with the lifting seat and the plug pin, the extending direction of the guide assembly intersects with the extending direction of the locking rod, the plug 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 plug pin to be inserted into the plug hole through the connecting rod.

9. The mold heating forming device according to any one of claims 1 to 6, wherein: 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, two sides of the mounting frame are respectively connected with the two first lifting frames, the support base is arranged on the mounting frame, the first lifting driving device can drive the two first lifting frames to synchronously move up and down, so as to drive the support base to move, and the buffer assemblies are connected between the support base and the mounting frame, so that the support base can elastically move up and down relative to the mounting frame; and the second lifting assembly further comprises a second lifting driving device and two second lifting frames, the two second lifting frames are oppositely arranged, two sides of the cover body are respectively connected with the two second lifting frames, and the second lifting driving device can drive the two second lifting frames to synchronously move up and down, so as to drive the cover body to move up and down. A conveying device and the mold heating forming device according to any one of claims 1 to 9, a conveying surface of the conveying device is arranged between the cover body and the support base, and the base is arranged on the conveying surface and moves with the conveying surface. ​ ​ ​ ​ ​ ​ ​ ​ 10. A continuous production system characterized by: ​

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