A high-efficiency forming device for bead foam material

Abstract

The application discloses a kind of high-efficiency forming equipment of bead foam material, belong to shoe insole preparation technical field, including frame, lifting platform and the feeding mechanism located in lifting platform side, the lower mould is arranged on lifting platform, the upper mould is arranged on the frame, the feeding mechanism includes the storage tank fixed in the frame side, the bottom of the storage tank is evenly provided with multiple discharge pipes along the length direction;It also includes movable moving plate, the upper surface of the moving plate is evenly provided with multiple inclined material receiving boxes, the number of the material receiving box is same with discharge pipe;The application improves production efficiency and stability, solves the problems of cost, operation, quality and safety, makes the forming process of bead foam material more smooth and efficient, reduces the downtime caused by manual operation error or equipment problem, helps to realize large-scale, continuous production.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of shoe insole preparation, and particularly relates to a high-efficiency forming equipment for bead foam materials. BACKGROUND

[0002] The bead foam material is an advanced process for expanding polymer beads to form a porous foam material by using a supercritical fluid (such as CO2 or N2) as a physical foaming agent, and the core is to realize efficient and environmentally-friendly foaming of the beads through the unique properties of the supercritical fluid (combining the diffusion of gas and the solubility of liquid), so that a high-performance foam material with uniform cell structure is finally obtained.

[0003] The beads can be used to prepare shoe insoles, and the specific operation steps are placing the beads in a mold, introducing 120-180 DEG C water vapor or microwave heating to make the surface of the beads melt and bond, and finally forming a shoe insole, and the core equipment is a steam forming machine, a mold and a bead feeding mechanism. However, the overall quality of the beads is light, and the accuracy of the feeding mechanism is high, and some cost-sensitive enterprises cannot have sufficient budget to purchase high-precision feeding mechanisms. These enterprises often manually weigh and fill the beads into the mold. This not only requires high proficiency of the operator, but also makes the surface of the beads more likely to be contaminated with impurities such as oil stains and sweat, which affects the forming effect, and there is a great risk in continuously manually feeding the mold. SUMMARY

[0004] The purpose of the application is to provide a high-efficiency forming equipment for bead foam materials, which solves the following technical problems: some enterprises often manually weigh and fill the beads into the mold, which not only requires high proficiency of the operator, but also makes the surface of the beads more likely to be contaminated with impurities such as oil stains and sweat, which affects the forming effect, and there is a great risk in continuously manually feeding the mold.

[0005] The purpose of the application can be achieved by the following technical solutions:

[0006] A high-efficiency forming equipment for bead foam materials, comprising a rack, a lifting platform and a feeding mechanism located on one side of the lifting platform, a lower mold is arranged on the lifting platform, an upper mold is arranged on the rack, the feeding mechanism comprises a storage tank fixed on one side of the rack, and a plurality of discharge pipes are uniformly arranged on the bottom of the storage tank along the length direction;

[0007] The movable moving plate is uniformly provided with a plurality of inclined material receiving boxes on the upper surface, the number of the material receiving boxes is same as that of the material discharge pipes, a material receiving pipe is connected to the top wall of the material receiving box, a material discharge opening is formed on the side of the material receiving box close to the lower die, an air bag is arranged in the material receiving box, an L-shaped exhaust pipe is connected to the bottom wall of the material receiving box, one end of the exhaust pipe is in communication with the air bag, a blocking rod is movably arranged on the exhaust pipe, air holes are formed in the blocking rod, a limiting block is arranged on the blocking rod, and a wedge-shaped block is fixed to the bottom end of the blocking rod.

[0008] As a further scheme of the present application, tracks are fixed to the two side columns of the rack, sliding blocks are slidably connected in the tracks, and the two ends of the moving plate are fixedly connected with the two sliding blocks.

[0009] As a further scheme of the present application, an air receiving plate is arranged above the air bag.

[0010] As a further scheme of the present application, the air receiving plate is matched in size with the material receiving box, screw holes are uniformly formed in the side wall of the material receiving box away from the material discharge opening, and limiting bolts are screw-connected in the screw holes.

[0011] As a further scheme of the present application, a fixing plate is fixed to the two tracks, a plurality of movable rods are movably arranged on the fixing plate, the number of the movable rods is same as that of the material receiving pipes and the positions of the movable rods are one-to-one corresponding, a stop block is fixed to one end of the movable rod, the upper surface of the stop block is flush with the end of the material receiving pipe, a spring is sleeved on the movable rod and located between the stop block and the fixing plate.

[0012] As a further scheme of the present application, a gas sending box is fixed between the two tracks, a piston is arranged in the gas sending box, a piston rod is fixed to one side of the piston, the side wall of the gas sending box through which the piston rod penetrates is fixedly connected with the moving plate, a plurality of gas sending pipes are connected to the upper surface of the gas sending box, the plurality of gas sending pipes are respectively connected with the plurality of air bags, an air inlet pipe is connected to one side of the bottom wall of the gas sending box, and a one-way valve is mounted on each of the gas sending pipes and the air inlet pipe.

[0013] As a further scheme of the present application, the gas sending pipe is a rubber hose.

[0014] The present application has the following beneficial effects:

[0015] (1) The present application sets up the storage tank and the receiving box, the storage tank is used for storing the beads, a plurality of discharge pipes are corresponded with a plurality of receiving pipes, so that the beads can automatically fall into the receiving box, and according to the space size in the receiving box, air is introduced into the air bag to maintain a certain volume, so that the remaining space in the receiving box can be controlled, the amount of receiving each time is kept as the required bead amount, and the air bag volume is convenient to adjust, can satisfy the manufacture of different shoe insole, does not need to rely on high-precision feeding mechanism, provides a more economical solution for cost-sensitive enterprises, greatly reduces the financial pressure of enterprises in equipment procurement, so that stable production can be realized under the premise of cost control;

[0016] (2) The present application sets up the exhaust pipe and the plugging rod, when the receiving box receives enough beads, the receiving box moves downward, the wedge block contacts the edge of the lower mold, the plugging rod rises, the air hole enters the exhaust pipe, the air bag immediately exhausts, the gas blows into the forming cavity of the lower mold, the volume of the air bag decreases after pressure relief, then the beads automatically pass through the discharge port and are discharged into the forming cavity of the lower mold, compared with manual weighing and filling, the present application simplifies the feeding operation process, ordinary operators can perform the operation after simple training, reduces the unstable feeding problem caused by the difference in manual skills, and reduces the personnel training cost;

[0017] (3) The present application sets up the storage tank, a large amount of beads can be stored in the storage tank, long-time continuous production is satisfied, the direct contact between the beads and the operators is reduced, so that the probability of impurities such as oil stains and sweat polluting the beads is reduced, the beads are kept clean, the forming defects caused by impurities are avoided, the product qualified rate is improved, the safety risk in the manual feeding process is reduced, the probability of accidental accidents is reduced, and more reliable safety protection is provided for the production process. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in combination with the drawings.

[0019] Figure 1 is the first perspective view of the whole structure of the present application;

[0020] Figure 2 is the second perspective view of the whole structure of the present application;

[0021] Figure 3 is the structure diagram of the feeding mechanism of the present application;

[0022] Figure 4 is the structure diagram of the receiving box of the present application;

[0023] Figure 5 is the internal structure diagram of the receiving box of the present application;

[0024] Figure 6 isFigure 4 Enlarged view at B;

[0025] Figure 7 Is Figure 3 Enlarged view at A;

[0026] Figure 8 Is the internal structure diagram of the gas supply box of the application.

[0027] In the figure: 1, rack; 2, upper die; 3, lifting platform; 4, lower die; 5, feeding mechanism; 501, storage box; 502, discharging pipe; 503, track; 504, sliding block; 505, moving plate; 506, driving rod; 507, receiving box; 508, receiving pipe; 509, air bag; 510, receiving plate; 511, limiting bolt; 512, exhaust pipe; 513, plugging rod; 514, air hole; 515, wedge block; 516, limiting block; 517, fixed plate; 518, movable rod; 519, stop block; 520, spring; 521, gas supply box; 522, piston rod; 523, piston; 524, gas supply pipe; 525, air inlet pipe.

[0028] The drawings are only used for illustrative description, and cannot be understood as the limitation of the application; in order to better illustrate the embodiments, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size and shape of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the application.

[0030] Please refer to Figures 1 to 6As shown, the present application is a kind of high-efficiency forming equipment for bead foam material, including frame 1, lifting platform 3 and feeding mechanism 5 located on one side of lifting platform 3, lifting platform 3 is provided with lower mould 4, frame 1 is provided with upper mould 2, feeding mechanism 5 includes storage tank 501 fixed on one side of frame 1, the bottom of storage tank 501 is uniformly provided with multiple discharge pipes 502 along the length direction;It also includes movable moving plate 505, the upper surface of moving plate 505 is uniformly provided with multiple inclined receiving boxes 507, the number of receiving boxes 507 is same with that of discharge pipes 502, receiving box 507 is connected with receiving pipe 508 on the top wall, discharge port is formed on the side of receiving box 507 close to lower mould 4, air bag 509 is arranged in receiving box 507, L-shaped exhaust pipe 512 is connected on the bottom wall of receiving box 507, one end of exhaust pipe 512 is communicated with air bag 509, exhaust pipe 512 is movably provided with plugging rod 513, air hole 514 is formed on plugging rod 513, limiting block 516 is arranged on plugging rod 513, wedge block 515 is fixed on the bottom end of plugging rod 513;First, according to the required amount of beads for each time forming, inflate air bag 509 to make it expand to appropriate volume, the volume of receiving box 507 cavity minus the volume of air bag 509 is the volume that can be loaded, it should be noted that, when calculating, also calculate the volume in receiving pipe 508, to ensure the accuracy of receiving amount, air bag 509 is blocked after expansion, discharge pipe 502 is connected with receiving pipe 508, the beads in storage tank 501 automatically fall into receiving box 507, then push moving plate 505 to move towards lower mould 4, when wedge block 515 contacts the edge of lower mould 4, wedge block 515 and plugging rod 513 are raised, air hole 514 enters exhaust pipe 512, air bag 509 immediately exhausts, gas blows into the forming cavity of lower mould 4, moving plate 505 continues to move a distance, so that discharge port is located above the forming cavity, the volume of air bag gradually decreases after pressure relief, beads can fall into the forming cavity of lower mould 4 through discharge port, after loading is completed, moving plate 505 is reset for next loading, and lower mould 4 is raised to combine with upper mould 2 to complete the forming of shoe midsole.

[0031] Referring to Figure 2 And Figure 3 Both sides of frame 1 are fixed with track 503, sliding block 504 is slidably connected in track 503, both ends of moving plate 505 are fixedly connected with two sliding blocks 504, driving rod 506 is connected on moving plate 505, driving rod 506 is connected with external driving source.

[0032] Referring to Figure 5The upper side of the air bag 509 is provided with a receiving plate 510. The receiving plate 510 is arranged to better discharge the beads and avoid the beads being stuck due to the wrinkles of the air bag 509 after shrinking. The receiving plate 510 is matched with the size of the receiving box 507. The sidewall of the receiving box 507 away from the discharge port is uniformly provided with a threaded hole. The threaded hole is threadedly connected with a limiting bolt 511. The different limiting bolts 511 are screwed into the receiving box 507 to limit the movement of the receiving plate 510 and limit the volume of the air bag 509, so that the receiving box 507 can accurately receive different amounts of beads to meet the production of different shoe midsoles. For example, after the lowermost limiting bolt 511 is screwed into the receiving box 507, the space above the receiving plate 510 is the largest and can store the largest amount of beads, which is suitable for the shoe midsole of adult large size. It is not necessary to worry about the difficulty in estimating the volume of the air bag 509 after expansion due to excessive inflation. It is worth noting that, in order to ensure the stability of the receiving plate 510, the limiting bolts 511 can be arranged on the two sidewalls of the receiving box 507 to avoid the end of the receiving plate 510 being raised.

[0033] Referring to Figure 2 , 3 and Figure 7 , the two rails 503 are jointly fixed with a fixed plate 517. The fixed plate 517 is movably provided with a plurality of movable rods 518. The movable rods 518 are the same in number as the receiving pipes 508 and one-to-one correspond in position. One end of the movable rod 518 is fixedly provided with a stop block 519. The upper surface of the stop block 519 is flush with the end of the receiving pipe 508. The movable rod 518 is sleeved with a spring 520, and the spring 520 is located between the stop block 519 and the fixed plate 517. In order to facilitate automatic loading, after the receiving box 507 is removed, the stop block 519 automatically blocks the bottom of the discharge pipe 502 under the action of the spring 520. When the receiving box 507 is reset, the receiving pipe 508 pushes away the stop block 519 to automatically load.

[0034] Referring to Figure 2 , Figure 3 and Figure 8The air feeding box 521 is fixed between the two tracks 503, the piston 523 is arranged in the air feeding box 521, one side of the piston 523 is fixed with the piston rod 522, the side wall of the piston rod 522 penetrating the air feeding box 521 is fixedly connected with the moving plate 505, the upper surface of the air feeding box 521 is connected with a plurality of air feeding pipes 524, the plurality of air feeding pipes 524 are connected with the plurality of air bags 509 respectively, one side of the bottom wall of the air feeding box 521 is connected with the air inlet pipe 525, and the air feeding pipe 524 and the air inlet pipe 525 are both provided with a one-way valve; the air feeding pipe 524 is a rubber hose; in order to further improve the efficiency, the air feeding box 521 is arranged, when the receiving box 507 moves to the downward mold 4, the moving plate 505 drives the piston rod 522 and the piston 523 to move, external air is sucked into the air feeding box 521 through the air inlet pipe 525, when the receiving box 507 completes the unloading reset, the moving plate 505 drives the piston rod 522 and the piston 523 to move again, air in the air feeding box 521 is sent into the air bag 509 through the air feeding pipe 524, the air bag 509 is expanded again, and automatic and continuous loading and unloading can be realized; it should be noted that the volume of the air feeding box 521 is large, sufficient air is sent into the air bag 509 each time, and the air bag 509 is still in a high-pressure state after expansion.

[0035] The working principle of the present application is as follows: in the initial state, the receiving pipe 508 and the unloading pipe 502 are not connected, the corresponding limiting bolt 511 is screwed into the receiving box 507 according to the required bead amount each time, the moving plate 505 is driven to move by an external driving source (not shown), the receiving pipe 508 on the receiving box 507 is gradually aligned with the unloading pipe 502, and in this process, the moving plate 505 drives the piston rod 522 and the piston 523 to move, air in the air feeding box 521 is sent into the air bag 509 through the air feeding pipe 524, the air bag 509 is expanded, the unloading port of the receiving box 507 is blocked after the air bag 509 is expanded, and the beads in the storage box 501 are automatically dropped into the receiving box 507 to complete loading after the unloading pipe 502 and the receiving pipe 508 are completely connected;

[0036] Subsequently push the moving plate 505 moves in the direction of the lower mold 4, when the wedge block 515 contacts the top edge of the lower mold 4, the wedge block 515 and the plugging rod 513 are raised, the air hole 514 enters the exhaust pipe 512, the air bag 509 is immediately exhausted, the gas blows into the forming cavity of the lower mold 4, the moving plate 505 continues to move a distance, so that the discharge port is located above the forming cavity, the air bag 509 is gradually reduced in volume after pressure relief, the beads can fall into the forming cavity of the lower mold 4 through the discharge port, in the process, the moving plate 505 drives the piston rod 522 and the piston 523 to move, and the external air is sucked into the air supply box 521 through the air inlet pipe 525, after the discharging is completed, the external driving source drives the moving plate 505 away from the lower mold 4, at this time the plugging rod 513 is reset under the action of gravity, the lower mold 4 is raised and the upper mold 2 is closed, the forming of the shoe midsole is completed, and the above operation is repeated to realize continuous production.

[0037] The above describes one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the scope of the present application.

Claims

1. A high-efficiency forming device for bead foam material, comprising a frame (1), a lifting platform (3) and a feeding mechanism (5) located on one side of the lifting platform (3), wherein a lower mold (4) is arranged on the lifting platform (3), and an upper mold (2) is arranged on the frame (1), characterized in that, The feeding mechanism (5) comprises a storage box (501) fixed on one side of the rack (1), and a plurality of discharge pipes (502) are uniformly arranged on the bottom of the storage box (501) along the length direction; It also includes a movable moving plate (505), the upper surface of the moving plate (505) is uniformly provided with a plurality of inclined material receiving boxes (507), the number of the material receiving boxes (507) is the same as that of the discharge pipes (502), a material receiving pipe (508) is connected to the top wall of the material receiving box (507), a discharge port is formed on the side of the material receiving box (507) close to the lower die (4), an air bag (509) is arranged in the material receiving box (507), an L-shaped exhaust pipe (512) is connected to the bottom wall of the material receiving box (507), one end of the exhaust pipe (512) is in communication with the air bag (509), a blocking rod (513) is movably arranged on the exhaust pipe (512), a ventilation hole (514) is formed in the blocking rod (513), a limiting block (516) is arranged on the blocking rod (513), and a wedge-shaped block (515) is fixed to the bottom end of the blocking rod (513).

2. A high efficiency forming apparatus for bead foam materials according to claim 1, wherein, The two side columns of the rack (1) are fixed with rails (503), the rails (503) are slidably connected with sliding blocks (504), the two ends of the moving plate (505) are fixedly connected with the two sliding blocks (504), and a driving rod (506) is connected to the moving plate (505).

3. The high efficiency forming apparatus for bead foam materials of claim 1, wherein, An air receiving plate (510) is arranged above the air bag (509).

4. A high efficiency forming apparatus for bead foam materials according to claim 3, wherein The air receiving plate (510) is matched with the material receiving box (507) in size, and a threaded hole is uniformly formed in the side wall of the material receiving box (507) away from the discharge port, and a limiting bolt (511) is screwed in the threaded hole.

5. The high efficiency forming apparatus for bead foam materials of claim 2, wherein, A fixed plate (517) is fixed on the two rails (503), a plurality of movable rods (518) are movably arranged on the fixed plate (517), the number of the movable rods (518) is the same as that of the material receiving pipes (508) and corresponds to the positions of the material receiving pipes (508), a stop block (519) is fixed to one end of the movable rod (518), the upper surface of the stop block (519) is flush with the end of the material receiving pipe (508), a spring (520) is sleeved on the movable rod (518) and located between the stop block (519) and the fixed plate (517).

6. The high efficiency forming apparatus for bead foam materials of claim 2, wherein, A gas sending box (521) is fixed between the two rails (503), a piston (523) is arranged in the gas sending box (521), one side of the piston (523) is fixed with a piston rod (522), the piston rod (522) penetrates through the side wall of the gas sending box (521) and is fixedly connected with the moving plate (505), a plurality of gas sending pipes (524) are connected to the upper surface of the gas sending box (521), the plurality of gas sending pipes (524) are respectively connected with the plurality of air bags (509), one side of the bottom wall of the gas sending box (521) is connected with an air inlet pipe (525), and a one-way valve is installed on the gas sending pipe (524) and the air inlet pipe (525).

7. A high efficiency forming apparatus for bead foam materials according to claim 6, wherein The gas sending pipe (524) is a rubber hose.

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