Foaming device for EVA (ethylene-vinyl acetate) injection foaming forming machine

Abstract

The utility model discloses a foaming device for an EVA (Ethylene Vinyl Acetate) injection foaming forming machine, which relates to the technical field of foaming devices and comprises a barrel body, the top of the barrel body is matched with a cover plate, the cover plate is rotatably connected with a rotating shaft, the rotating shaft extends into the barrel body, the rotating shaft is fixedly connected with stirring blades, the upper surface of the top of the barrel body is provided with an annular groove, and the top of the barrel body is fixedly connected with the stirring blades. A sliding ring is slidably arranged in the annular groove, and a first electromagnet is fixedly embedded in the lower surface of the cover plate. According to the foaming device for the EVA injection foaming forming machine, by arranging the cover plate, the annular groove, the sliding ring and other structures, after foaming is completed, stirring blades and other structures can stretch out of the interior of the barrel body, cleaning by operators is facilitated, meanwhile, in the foaming operation process, the cover plate can be controlled to move up and down, the stirring blades and other structures are driven to move up and down, the stirring range is expanded, and the foaming effect is improved; and when the cover plate moves up and down, the sliding ring moves up and down in the annular groove, gaps are prevented from being generated, and noise is prevented from being diffused outwards.

Description

TECHNICAL FIELD

[0001] The utility model relates to foaming device technical field, especially in EVA injection foaming forming machine's foaming device. BACKGROUND

[0002] Shoe material is the most important application field of EVA resin. In the EVA resin used in shoe material, the content of vinyl acetate is generally 15% to 22%. Because the EVA resin blended foaming product has the performance of softness, good elasticity, chemical corrosion resistance and the like, it is widely used in the sole and interior decoration material of high-grade tourist shoes, mountaineering shoes, slippers and sandals. The formula of EVA foaming mainly consists of main materials, POE, TPR, foaming agent, bridging agent, zinc stearate and colorant. Different EVA foaming formulas can be prepared according to the size, dimension and color of the product. Correspondingly, there are various styles of foaming forming machines, which can be generally divided into continuous foaming machines such as extrusion, calendering and flow casting, and intermittent foaming machines such as injection and foaming plate vacuum forming. EVA injection foaming forming machine is needed in the process of sole processing.

[0003] A full-automatic EVA injection foaming forming machine is disclosed in the patent with the title of "a full-automatic EVA injection foaming forming machine" (patent application number: CN201921986648.5). The machine achieves high foaming efficiency through the action of the PLC controller, motor, stirring rod, stirring blade, fan, air conditioner filter screen, one-way box, partition, material hole, piston, fixed rod, spring and first connecting rod, solves the problem of low foaming efficiency of the existing full-automatic foaming forming machine, and not only affects the production efficiency of foaming, but also has poor foaming forming effect. However, the stirring rod is arranged in the inside of the box body, and it is inconvenient for the user to clean the material attached to the stirring rod after foaming is completed, thereby affecting subsequent use.

[0004] Therefore, it is necessary to provide the foaming device for EVA injection foaming forming machine to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing the foaming device for EVA injection foaming forming machine to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: the foaming device for EVA injection foaming forming machine, including the barrel body, the top of barrel body is equipped with the cover plate, the cover plate is rotatably connected with the pivot, and the pivot extends to the inside of barrel body, the pivot is fixedly connected with the stirring blade on the pivot, the upper surface of barrel body top is equipped with the ring groove, the inside of ring groove is equipped with the sliding ring, the lower surface of cover plate is fixedly embedded with the first electromagnet, the top of sliding ring is fixedly embedded with the first magnetic block, and the first magnetic block is matched with the first electromagnet.

[0007] Preferably, the top of the barrel body outer wall is fixedly connected with a fixing frame, one side of the fixing frame is fixedly connected with a guide rod, the other side of the fixing frame is rotatably connected with a lead screw, both sides of the cover plate are fixedly connected with fixing blocks, a through slot matched with the guide rod is formed in one of the fixing blocks, and a threaded hole matched with the lead screw is formed in the other fixing block.

[0008] Preferably, the fixing frame is fixedly connected with a first motor, and the lead screw is fixedly connected to a driving shaft of the first motor.

[0009] Preferably, the inside of the barrel body is slidably provided with a scraping ring, a horizontal plate is fixedly connected to the inner ring of the scraping ring, a T-shaped slot is formed in the upper surface of the horizontal plate, and the rotating shaft is matched with the T-shaped slot.

[0010] Preferably, a second magnetic block is fixedly embedded in the bottom of the T-shaped slot, a second electromagnet is fixedly embedded in the bottom end of the rotating shaft, and the second magnetic block is matched with the second electromagnet.

[0011] Preferably, a second motor is fixedly connected to the upper surface of the cover plate, and the rotating shaft is fixedly connected to a driving shaft of the second motor.

[0012] The technical effects and advantages of the present application are as follows:

[0013] 1. The cover plate, ring groove and sliding ring are arranged, after foaming, the stirring blade and other structures can be stretched out from the inside of the barrel body, which is convenient for the operator to clean, and during the foaming operation, the cover plate can be controlled to move up and down, driving the stirring blade and other structures to move up and down, expanding the stirring range, improving the foaming effect, and when the cover plate moves up and down, the sliding ring moves up and down in the inside of the ring groove, preventing gaps from being generated and avoiding noise from spreading outward.

[0014] 2. When the cover plate moves up after foaming, the scraping ring is driven to move up by the rotating shaft, and the scraping ring is pushed and scraped on the inner wall of the barrel body, which is convenient for the operator to clean. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a foaming device structure schematic view of the EVA injection foaming forming machine.

[0016] Figure 2 It is a foaming device sectional structure schematic view of the EVA injection foaming forming machine.

[0017] Figure 3 It is a foaming device structure schematic view of the EVA injection foaming forming machine. Figure 2 It is an enlarged schematic view of the structure at A in the present application.

[0018] Figure 4 It is a foaming device structure schematic view of the EVA injection foaming forming machine. Figure 2Structure schematic view of the middle B.

[0019] Figure 5 Structure schematic view of the scraping ring and the horizontal plate of the utility model.

[0020] In the figure: 1, barrel body; 2, cover plate; 3, rotating shaft; 4, stirring blade; 5, ring groove; 6, slip ring; 7, first electromagnet; 8, fixed frame; 9, guide rod; 10, fixed block; 11, first motor; 12, lead screw; 13, second motor; 14, scraping ring; 15, horizontal plate; 16, second electromagnet; 17, first magnetic block; 18, second magnetic block. DETAILED DESCRIPTION

[0021] The utility model provides Figures 1-5 As shown in EVA injection foaming forming machine's foaming device, including barrel body 1, the top of barrel body 1 is matched with cover plate 2, cover plate 2 is rotatably connected with rotating shaft 3, and rotating shaft 3 extends to the inside of barrel body 1, and rotating shaft 3 is fixedly connected with stirring blade 4, and stirring blade 4 is provided as multiple. The upper surface of cover plate 2 is fixedly connected with second motor 13, and rotating shaft 3 is fixedly connected on the drive shaft of second motor 13.

[0022] And cover plate 2 is provided with feeding hopper, and barrel body 1 bottom is provided with discharge pipe, and is provided with oxygenation pump (not shown in the figure) and the device cooperation.

[0023] When actually using, operating personnel will throw EVA foaming ingredients into barrel body 1 through feeding hopper, then start second motor 13, and second motor 13 drives rotating shaft 3 and stirring blade 4 to rotate, and stirring blade 4 will make EVA foaming ingredients to be mixed uniformly, and simultaneously oxygenation pump will transport the air outside to barrel body 1, and the oxygen in the air is mixed with EVA foaming ingredients, so that EVA foaming ingredients have good foaming effect; after foaming, EVA foaming material can be transported outward by using the cooperation of delivery pump and discharge pipe.

[0024] Considering that stirring blade 4 and other structures will be attached with materials when stirring in barrel body 1, for the convenience of material cleaning, the top of the outer wall of barrel body 1 is fixedly connected with fixed frame 8, one side of fixed frame 8 is fixedly connected with guide rod 9, the other side of fixed frame 8 is rotatably connected with lead screw 12, and both sides of cover plate 2 are fixedly connected with fixed block 10, a through slot matched with guide rod 9 is formed in one of fixed block 10, and a threaded hole matched with lead screw 12 is formed in the other fixed block 10. First motor 11 is fixedly connected on fixed frame 8, and lead screw 12 is fixedly connected on the drive shaft of first motor 11.

[0025] Specifically, during the foaming operation, the first motor 11 is started to drive the screw rod 12 to rotate, and under the cooperation of the guide rod 9, the fixed block 10 and other structures, the cover plate 2 moves downward and is attached to the top of the barrel body 1, so that the stirring blade 4 and other structures can extend into the barrel body 1 to facilitate stirring.

[0026] During the foaming operation, the cover plate 2 can be controlled to move up and down to drive the stirring blade 4 and other structures to move up and down, thereby expanding the stirring range and improving the foaming effect. Moreover, the moving range is limited, and the stirring blade 4 can stir the material.

[0027] Considering that when the cover plate 2 moves upward during the foaming operation, there is a gap between the cover plate 2 and the barrel body 1, and the noise generated by stirring is easy to spread outward through the gap, a ring groove 5 is formed on the upper surface of the top of the barrel body 1, a sliding ring 6 is slidably arranged in the ring groove 5, a first electromagnet 7 is inlaid on the lower surface of the cover plate 2, a first magnetic block 17 is inlaid on the top of the sliding ring 6, and the first magnetic block 17 cooperates with the first electromagnet 7.

[0028] During the foaming operation, the first magnetic block 17 is started to generate an attractive force between the first magnetic block 17 and the first electromagnet 7, so that the cover plate 2 and the sliding ring 6 form a whole, and when the cover plate 2 moves up and down, the sliding ring 6 moves up and down in the ring groove 5, thereby preventing the generation of a gap and avoiding the outward spread of noise.

[0029] When cleaning, the first magnetic block 17 is turned off to separate the cover plate 2 from the sliding ring 6, thereby facilitating cleaning.

[0030] By arranging the cover plate 2, the ring groove 5 and the sliding ring 6 and other structures, after the foaming operation, the stirring blade 4 and other structures can extend out of the barrel body 1 to facilitate cleaning by the operator. During the foaming operation, the cover plate 2 can be controlled to move up and down to drive the stirring blade 4 and other structures to move up and down, thereby expanding the stirring range and improving the foaming effect. Moreover, when the cover plate 2 moves up and down, the sliding ring 6 moves up and down in the ring groove 5, thereby preventing the generation of a gap and avoiding the outward spread of noise.

[0031] To realize pushing and scraping inside the barrel body 1 and facilitate subsequent cleaning, a scraping ring 14 is slidably arranged in the barrel body 1, a horizontal plate 15 is fixedly connected to the inner circle of the scraping ring 14, a T-shaped groove is formed on the upper surface of the horizontal plate 15, the rotating shaft 3 cooperates with the T-shaped groove, the bottom end of the rotating shaft 3 is T-shaped, a second magnetic block 18 is inlaid in the bottom of the T-shaped groove, a second electromagnet 16 is inlaid in the bottom end of the rotating shaft 3, and the second magnetic block 18 cooperates with the second electromagnet 16. During use, a power supply device can be arranged at a suitable position of the device to supply power to the first electromagnet 7 and the second electromagnet 16. The power supply device includes a battery and other structures, which can be adjusted according to specific use.

[0032] When the foaming is finished, the cover plate 2 moves upward, and the scraping ring 14 is driven by the rotating shaft 3 to move upward and is attached to the inner wall of the barrel 1 to push and scrape, which is convenient for the operator to clean.

[0033] When the foaming operation is performed, the rotating shaft 3 needs to continuously rotate, to avoid the continuous rotation of the scraping ring 14 and the horizontal plate 15 and reduce the abrasion, at this time, the second electromagnet 16 is in the closed state, the rotating shaft 3 cannot drive the horizontal plate 15 and the scraping ring 14 to rotate. When the inner wall at the bottom of the barrel 1 needs to be pushed and scraped, the second electromagnet 16 can be started, the second electromagnet 16 and the second magnetic block 18 generate an attractive force, so that the rotating shaft 3 and the horizontal plate 15 form a whole, the rotating shaft 3 can drive the horizontal plate 15 and the scraping ring 14 to rotate, and the horizontal plate 15 can push and scrape the inner wall at the bottom of the barrel 1.

Claims

1. A foaming device for an EVA injection molding machine, comprising a barrel (1), characterized in that: The top of the barrel (1) is fitted with a cover plate (2), and a rotating shaft (3) is rotatably connected to the cover plate (2), and the rotating shaft (3) extends into the interior of the barrel (1). A stirring blade (4) is fixedly connected to the rotating shaft (3). An annular groove (5) is opened on the upper surface of the top of the barrel (1), and a slip ring (6) is slidably arranged inside the annular groove (5). A first electromagnet (7) is fixedly embedded on the lower surface of the cover plate (2), and a first magnetic block (17) is fixedly embedded on the top of the slip ring (6). The first magnetic block (17) cooperates with the first electromagnet (7).

2. The foaming device for an EVA injection molding machine according to claim 1, characterized in that: A fixing frame (8) is fixedly connected to the top of the outer wall of the barrel (1). A guide rod (9) is fixedly connected to one side of the fixing frame (8). A lead screw (12) is rotatably connected to the other side of the fixing frame (8). Fixing blocks (10) are fixedly connected to both sides of the cover plate (2). One fixing block (10) has a through groove that cooperates with the guide rod (9), and the other fixing block (10) has a threaded hole that cooperates with the lead screw (12).

3. The foaming device for an EVA injection molding machine according to claim 2, characterized in that: The first motor (11) is fixedly connected to the fixed frame (8), and the lead screw (12) is fixedly connected to the drive shaft of the first motor (11).

4. The foaming device for an EVA injection molding machine according to claim 1, characterized in that: The barrel (1) is slidably provided with a scraper ring (14), and a horizontal plate (15) is fixedly connected to the inner ring of the scraper ring (14). A T-shaped groove is provided on the upper surface of the horizontal plate (15), and the rotating shaft (3) is engaged with the T-shaped groove.

5. The foaming device for an EVA injection molding machine according to claim 4, characterized in that: The bottom of the T-shaped groove is fixedly inlaid with a second magnetic block (18), and the bottom end of the rotating shaft (3) is fixedly inlaid with a second electromagnet (16). The second magnetic block (18) and the second electromagnet (16) cooperate with each other.

6. The foaming device for an EVA injection molding machine according to claim 1, characterized in that: The upper surface of the cover plate (2) is fixedly connected to a second motor (13), and the rotating shaft (3) is fixedly connected to the drive shaft of the second motor (13).

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