Foamed EVA production line

Abstract

The application relates to a foaming EVA production line which sequentially comprises a banbury mixer, a feeding mechanism, an extruder, a cutting mechanism, a cooling mechanism and a foaming chamber, the banbury mixer is provided with a fixed column, the fixed column is hingedly connected with a movable frame, the movable frame is slidably connected with a material placing frame, the material placing frame is provided with a material placing groove, an inclined surface is arranged on the groove bottom inner wall of the material placing groove, an elastic piece one is arranged between the material placing frame and the groove bottom inner wall of the containing groove, a positioning piece is hingedly connected to the movable frame, a clamping groove one is arranged on the material placing frame, a clamping groove two is arranged on the fixed column, and an elastic piece two is arranged on the hinge shaft of the positioning piece; when feeding is needed, components are put into the material placing groove, the material placing frame is moved to be close to the groove bottom of the containing groove, when the feeding amount of the components reaches the requirement, the positioning piece is clamped into the clamping groove one and is separated from the clamping groove two, the movable frame is overturned to the side with larger weight, so that the components in the material placing groove are poured into the feeding port, quantitative feeding of the components is realized, and the feeding amount of the components can be more accurately controlled.

Description

Technical Field

[0001] This application relates to the field of foamed EVA production, and more particularly to a foamed EVA production line. Background Technology

[0002] EVA foam material has excellent chemical properties and is widely used in the manufacture of shoe materials, bag linings, toy materials, sporting goods materials, building materials, and various emerging applications such as electronic components and automotive interiors.

[0003] In actual production, the main steps of EVA foam material production are as follows: first, the raw materials are fed into a mixer for refining, then fed into an extruder to be extruded into sheets, then the sheets are cut, and after the sheets are cooled, they are transported to a foaming chamber for foaming to obtain foamed EVA material.

[0004] Foamed EVA material is made from several components in a certain proportion. Changes in the proportion of components will affect the quality and performance of the foamed EVA material. Therefore, it is necessary to precisely control the amount of components added. Summary of the Invention

[0005] In order to more accurately control the amount of foamed EVA components added, this application provides a foamed EVA production line.

[0006] The foamed EVA production line provided in this application adopts the following technical solution:

[0007] A foamed EVA production line includes, in sequence, a mixer, a feeding mechanism, an extruder, a cutting mechanism, a cooling mechanism, and a foaming chamber. The feeding mechanism is used to transport materials from the mixer to the extruder, which is used to extrude sheets. The cutting mechanism is used to cut the sheets, and the cooling mechanism is used to cool the sheets. The mixer has a feed inlet and a fixed column. A movable frame is hinged to the fixed column and is located above the feed inlet. The hinge axis of the movable frame is horizontal. A receiving groove is provided on the movable frame, and a placing frame is slidably connected to it. The placing frame slides close to or away from the bottom of the receiving groove. A placing trough is provided on the placing frame, and an inclined surface is provided on the inner wall of the bottom of the placing trough. The inclination direction of the inclined surface is perpendicular to the hinge axis of the movable frame. An elastic element is provided between the placing frame and the inner wall of the bottom of the receiving groove.

[0008] A positioning component is hinged to the movable frame. A slot 1 is provided on the material placement frame for the positioning component to be engaged. The slot 1 is located on the side of the positioning component away from the bottom of the receiving groove. A slot 2 is provided on the fixed column for the positioning component to be engaged. An elastic component 2 is provided on the hinge shaft of the positioning component. The elastic component 2 abuts against the movable frame, so that the positioning component tends to engage with the slot 1.

[0009] When the positioning element is located in the second slot, the positioning element disengages from the first slot; when the positioning element is located in the first slot, the positioning element disengages from the second slot.

[0010] By adopting the above technical solution, when feeding is required, the component is put into the feeding trough, which increases the weight of the feeding frame. This, in turn, squeezes the elastic element one, causing the feeding frame to move closer to the bottom of the receiving trough. When the required amount of component is fed, the positioning element and the first slot are aligned. Under the action of the second elastic element, the positioning element is inserted into the first slot and disengaged from the second slot. Due to the inclined surface, the weight of the component on one side of the hinge axis of the movable frame is greater than the weight of the component on the other side of the hinge axis of the movable frame. Therefore, the movable frame flips towards the side with the greater weight, thereby pouring the component in the feeding trough into the feed inlet, realizing quantitative feeding of the component and enabling more precise control of the amount of component fed.

[0011] After the components have been poured out, the movable frame is flipped in the opposite direction so that the positioning component and the second slot are realigned. Then, the positioning component is flipped and the material placement frame is moved so that the positioning component and the first slot are disengaged and the positioning component is inserted into the second slot. The movable frame can then be positioned to continue weighing.

[0012] Preferably, the material placement frame includes a frame body slidably connected to the movable frame and an adjusting block slidably connected to the frame body. The sliding direction of the adjusting block is parallel to the sliding direction of the frame body. The material placement groove is provided on the frame body, the slot is provided on the adjusting block, and the frame body is provided with a positioning component for positioning the adjusting block.

[0013] By adopting the above technical solution, setting up an adjustment block and a positioning component, the adjustment block can be moved according to the amount of raw material to be added, so that the slot is moved to match the required mass and amount of raw material to be added. Then, the adjustment block can be positioned by the positioning component. It can be adjusted according to the amount of different raw materials, which improves the applicability of the material placement frame. There is no need to set up multiple material placement frames according to the type of components, thus reducing production costs.

[0014] Preferably, the positioning component includes a rack on the adjusting block, a gear rotatably connected to the frame, an insert block slidably connected to the frame, and an operating block rotatably connected to the insert block. The gear and the rack mesh, the gear has a slot for inserting the insert block, and the operating block is threadedly connected to the frame.

[0015] By adopting the above technical solution, when it is necessary to move the adjustment block, the operating block is twisted to drive the insert block out of the slot, and the adjustment block can be moved. After the adjustment block is moved to the corresponding position and the insert block and the slot are aligned, the operating block is twisted to drive the insert block into the slot. The gear is positioned by the insert block abutting against the inner wall of the slot, thereby positioning the rack and the adjustment block, making it more convenient to position the adjustment block.

[0016] Preferably, a top block is slidably connected to the adjusting block, and the top block slides out of or into the adjusting block. The frame has several grooves for the top block to be inserted into, and the grooves are evenly spaced along the sliding direction of the adjusting block. The end of the top block away from the adjusting block has an arc surface, which is used to abut against the inner wall of the groove. The adjusting block has an elastic element three, which abuts against the top block so that the top block tends to extend out of the adjusting block.

[0017] By adopting the above technical solution, when the adjusting block is moved, the inner wall of the groove presses against the arc surface, pushing the top block away from the groove. When the top block moves to the next groove, the top block is stuck into the groove under the action of the elastic element three and hits the inner wall of the groove, producing a sound. Since the distance between adjacent grooves is consistent, the mass that the material block needs to increase / decrease is consistent each time the top block moves to the next groove. The adjusting block can be precisely adjusted according to the number of times the adjusting block produces a sound.

[0018] Preferably, a scraper is slidably connected to the frame, the scraper is located inside the material trough, and the scraper slides close to or away from the bottom of the material trough.

[0019] By adopting the above technical solution and setting up a scraper, when pouring raw materials, the scraper moves away from the bottom of the trough under the action of gravity, thereby scraping the raw materials adhering to the inner wall of the trough into the feed hopper, reducing the residue of raw materials in the trough, thereby reducing the error in the amount of raw materials input caused by the adhesion of raw materials, and further improving the accuracy of raw material input.

[0020] Preferably, the scraper includes a plate body slidably connected to the material trough and a weight slidably connected to the plate body. The weight is located on the side of the plate body away from the bottom of the material trough and at one end of the plate body. The weight is located on the side of the material trough with the greatest depth. The weight slides closer to or away from the plate body.

[0021] By adopting the above technical solution, when the raw material is poured, due to the tilt of the plate, the inner wall of the material trough cannot contact the plate. The weight slides away from the plate under the action of gravity, thereby scraping off the raw material adhering to the inner wall of the material trough that is not in contact with the plate. In addition, the weight can carry out the raw material located at the connection between the weight and the plate during the movement, further reducing the residue of raw material in the material trough.

[0022] Preferably, the inner wall of the receiving groove is provided with a limiting groove, the frame includes a main body and a limiting part, the material placement groove is provided on the main body, and the limiting part is located in the limiting groove.

[0023] By adopting the above technical solution, a limiting groove and a limiting part are set. The inner wall of the limiting groove abuts against the limiting part, thereby limiting the movement range of the frame and reducing the situation where the frame detaches from the movable frame when pouring raw materials.

[0024] Preferably, the movable frame is provided with an elastic element four, which is located in the limiting groove and on the side of the limiting part away from the bottom of the receiving groove.

[0025] By adopting the above technical solution, when the raw material is poured, the limiting part impacts the elastic element and vibrates, thereby shaking off the raw material adhering to the scraper and reducing the residue of raw material on the scraper.

[0026] Preferably, the fixed column is provided with an elastic element five, which abuts against the movable frame, so that the movable frame has the tendency to flip so that the positioning element and the slot one are aligned. The positioning element is provided with an arc-shaped surface, which is used to abut against the inner wall of the slot one.

[0027] By adopting the above technical solution and setting up elastic element five, after the components are poured out, the movable frame flips under the action of elastic element five, so that the positioning element and the slot two are realigned. At this time, the frame is squeezed by elastic element one, pushing the positioning element to flip, so that the positioning element is inserted into the slot two, realizing the automatic reset of the movable frame. There is no need to manually flip the movable frame and the positioning element, making weighing more convenient.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. When feeding is required, the component is put into the feeding trough, causing the feeding frame to move closer to the bottom of the receiving trough. When the required amount of component is fed, the positioning part is engaged in the first slot and disengaged from the second slot. The movable frame flips over to the side with the greater weight, thereby pouring the component in the feeding trough into the feed inlet, realizing quantitative feeding of the component and enabling more precise control of the amount of component fed.

[0030] 2. By setting adjustment blocks and positioning components, the feeding amount can be adjusted according to different raw material inputs, which improves the applicability of the feeding frame and eliminates the need to set multiple feeding frames according to the type of components, thus reducing production costs;

[0031] 3. By setting a top block, when the adjusting block is moved, the top block hits the inner wall of the groove and makes a sound. Since the distance between adjacent grooves is consistent, the mass that the material block needs to increase / decrease is also consistent each time the top block moves to the next groove. The adjusting block can be precisely adjusted according to the number of times the adjusting block makes a sound when it is moved. Attached Figure Description

[0032] Figure 1 This is an overall schematic diagram of an embodiment of this application;

[0033] Figure 2 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the internal mixer;

[0034] Figure 3 This is a partial cross-sectional structural view of an embodiment of this application, showing the structure of the fixed column;

[0035] Figure 4 This is a partial cross-sectional structural view of the fixed column, movable frame, frame body and scraper of an embodiment of this application, mainly showing the structure of the weight block;

[0036] Figure 5 This is a partially exploded view of a portion of the main body of an embodiment of this application, mainly showing the structure of the positioning component;

[0037] Figure 6 This is a partially exploded structural view of a portion of the main body of an embodiment of this application, mainly showing the structure of the top block and the elastic member three;

[0038] Figure 7 for Figure 6 The enlarged view of section A mainly shows the structure of the settling tank and the limiting channel.

[0039] Figure 8 for Figure 3 The enlarged view of section B mainly shows the structure of the positioning component;

[0040] Figure 9 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the arc-shaped surface;

[0041] Figure 10 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the feeding mechanism.

[0042] Explanation of reference numerals in the attached drawings: 1. Internal mixer; 11. Machine body; 111. Feed inlet; 12. Feed hopper; 13. Feed pipe; 2. Feeding mechanism; 21. Frame 1; 211. Chain drive mechanism; 212. Motor; 22. Material cart; 3. Extruder; 4. Cutting mechanism; 41. Frame 2; 42. Cutter; 43. Drive cylinder; 5. Cooling mechanism; 51. Frame 3; 52. Cooling roller; 6. Foaming chamber;

[0043] 7. Fixed column; 71. Slot II; 72. Slide rail; 8. Movable frame; 81. Receiving groove; 82. Limiting groove; 83. Through hole; 84. Limiting slider; 9. Material placement frame; 91. Frame body; 911. Main body; 9111. Material placement groove; 9112. Mounting groove; 9113. Settling groove; 9114. Limiting through groove; 9115. Groove; 912. Limiting part; 92. Adjusting block; 921. Slot I; 922. Embedded groove; 10. Elastic element IV; 14. Elastic element I; 15. Inclined surface; 16. Scraper ; 161, Plate; 1611, Leaving groove; 162, Weight block; 1621, Abutting part; 1622, Through part; 1623, Weight-adding part; 17, Positioning component; 171, Rack; 172, Gear; 1721, Slot; 173, Insert block; 174, Operating block; 18, Top block; 181, Arc surface; 19, Elastic element three; 20, Positioning element; 201, Hinge part; 202, Snap-in part one; 203, Snap-in part two; 23, Elastic element two; 24, Arc surface; 25, Elastic element five. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0045] This application discloses a foamed EVA production line. See also... Figure 1 and Figure 2 The foamed EVA production line includes, in sequence, a mixer 1, a feeding mechanism 2, an extruder 3, a cutting mechanism 4, a cooling mechanism 5, and a foaming chamber 6. The mixer 1 includes a body 11, a feed hopper 12, and a feeding pipe 13. The body 11 has a feed inlet 111. The feed hopper 12 is located above the feed inlet 111 and is fixed to the body 11. The feeding pipe 13 is fixed to the feed hopper 12 and communicates with the inside of the feed hopper 12. The end of the feeding pipe 13 away from the feed hopper 12 is fixedly connected to the body 11 and faces the feed inlet 111.

[0046] See Figure 2 and Figure 3 A fixed column 7 is fixed on the feed hopper 12. The fixed column 7 is located inside the feed hopper 12 and is horizontally arranged. A movable frame 8 is hinged on the fixed column 7. The movable frame 8 is sleeved on the outside of the fixed column 7, and the hinge axis of the movable frame 8 is horizontally arranged. A receiving groove 81 is opened on the outer wall of the movable frame 8, and a limiting groove 82 is opened on the inner wall of the receiving groove 81.

[0047] See Figure 3 and Figure 4A material placement frame 9 is slidably connected to the movable frame 8. The material placement frame 9 includes a frame body 91 and an adjusting block 92. The frame body 91 includes a main body 911 and a limiting part 912. The main body 911 is slidably connected to the receiving groove 81, and the main body 911 slides closer to or away from the bottom of the receiving groove 81. The limiting part 912 is located in the limiting groove 82 and is fixedly connected to the main body 911. When the main body 911 slides, it drives the limiting part 912 to slide and connect to the limiting groove 82. The limiting part 912 is abutted against by the inner wall of the limiting groove 82, thereby limiting the movement range of the main body 911.

[0048] See Figure 4 An elastic element 10 is fixed on the movable frame 8. The elastic element 10 is located inside the limiting groove 82 and on the side of the limiting part 912 away from the bottom of the receiving groove 81. The elastic element 10 and the inner wall of the limiting groove 82 away from the bottom of the receiving groove 81 are fixedly connected. In this embodiment, the elastic element 10 is a spring.

[0049] See Figure 4 An elastic element 14 is fixed on the main body 911. The elastic element 14 is located between the main body 911 and the inner wall of the bottom of the receiving groove 81, and the end of the elastic element 14 away from the main body 911 is fixedly connected to the inner wall of the bottom of the receiving groove 81. In this embodiment, the elastic element 14 is a spring.

[0050] See Figure 4 The main body 911 has a material placement groove 9111 on the end face away from the bottom of the receiving groove 81. An inclined surface 15 is formed on the inner wall of the bottom of the material placement groove 9111. In this embodiment, the inclined surface 15 is inclined away from the opening of the material placement groove 9111 in the direction away from the limiting part 912, and the inclined direction of the inclined surface 15 is perpendicular to the hinge axis of the movable frame 8.

[0051] See Figure 4 A scraper 16 is slidably connected to the main body 911. The scraper 16 is located in the material trough 9111. The scraper 16 includes a plate body 161 and a weight 162. The plate body 161 is inclined along the inclined direction of the inclined surface 15. The plate body 161 is slidably connected to the material trough 9111, and the plate body 161 slides close to or away from the bottom of the material trough 9111. A clearance groove 1611 is opened on the end face of the plate body 161 close to the bottom of the material trough 9111.

[0052] See Figure 4The weight 162 is located at one end of the plate 161 and on the side with the greatest depth of the material trough 9111. The weight 162 includes an abutment part 1621, a through part 1622, and a weight-adding part 1623. The abutment part 1621 slides along the sliding direction of the plate 161 and is connected to the relief groove 1611. The through part 1622 is located on the side of the abutment part 1621 away from the bottom of the material trough 9111 and is fixedly connected to the abutment part 1621. The through part 1622 passes through the plate. 161 is slidably connected to the plate 161. The weight-adding part 1623 is located on the side of the plate 161 away from the bottom of the material trough 9111. The weight-adding part 1623 and the end of the through part 1622 away from the abutment part 1621 are fixedly connected. The weight-adding part 1623 fits against the inner wall of the material trough 9111. The weight-adding part 1623 is slidably connected to the plate 161 through the cooperation of the through part 1622 and the plate 161. The weight-adding part 1623 slides closer to or away from the plate 161.

[0053] See Figure 3 and Figure 5 An installation groove 9112 is provided on the outer side wall of the main body 911. The installation groove 9112 extends through the main body 911 in a direction away from the bottom of the receiving groove 81. The adjusting block 92 is slidably connected in the installation groove 9112, and the sliding direction of the adjusting block 92 is parallel to the sliding direction of the main body 911. A retaining groove 921 is provided on the end face of the adjusting block 92 away from the bottom of the installation groove 9112.

[0054] See Figure 6 and Figure 7 A recessed groove 9113 is also provided on the outer side wall of the main body 911. The recessed groove 9113 and the mounting groove 9112 are located on the same side of the main body 911 and are spaced apart. A limit groove 9114 is provided on the inner wall of the bottom of the recessed groove 9113.

[0055] See Figure 5 and Figure 6 The main body 911 is provided with a positioning component 17, which is used to position the adjusting block 92. The positioning component 17 includes a rack 171, a gear 172, an insert block 173, and an operating block 174. The rack 171 is located on the side of the adjusting block 92 parallel to the sliding direction and is fixedly connected to the adjusting block 92. The rack 171 passes through the main body 911 in a direction away from the adjusting block 92 and slides along the sliding direction of the adjusting block 92 and is connected to the main body 911. The gear 172 is located on the side of the rack 171 away from the adjusting block 92 and is rotatably connected to the main body 911. The rotation axis of the gear 172 is perpendicular to the sliding direction of the adjusting block 92, and the gear 172 and the rack 171 mesh.

[0056] See Figure 5 and Figure 6The insert 173 is a rectangular block. The insert 173 is slidably connected to the limiting through groove 9114 and fits against the inner wall of the limiting through groove 9114. The insert 173 slides along the axis of the gear 172, approaching or moving away from the gear 172. The end face of the gear 172 near the insert 173 has a slot 1721 for the insert 173 to be inserted. The operating block 174 is threadedly connected to the recess 9113. The operating block 174 is located on the side of the insert 173 away from the gear 172 and is rotatably connected to the insert 173. The rotation axis of the operating block 174 is coaxial with the rotation axis of the gear 172.

[0057] In practical use, when it is necessary to move the adjusting block 92, twist the operating block 174 to drive the insert block 173 out of the slot 1721, and the adjusting block 92 can be moved. After the adjusting block 92 is moved to the corresponding position and the insert block 173 and the slot 1721 are aligned, twist the operating block 174 to drive the insert block 173 into the slot 1721. The gear 172 is positioned by the insert block 173 abutting against the inner wall of the slot 1721, and the rack 171 and the adjusting block 92 are positioned.

[0058] See Figure 6 An adjusting block 92 has a recess 922 on its end face near the bottom of the mounting groove 9112. A top block 18 is slidably connected to the adjusting block 92, and the top block 18 is located within the recess 922. The top block 18 can slide out of or into the recess 922. The end of the top block 18 away from the adjusting block 92 protrudes outward to form an arc surface 181. An elastic element 19 is also fixed to the adjusting block 92. The elastic element 19 is located within the recess 922 and on the side of the top block 18 near the bottom of the recess 922. The opposite ends of the elastic element 19 are fixedly connected to the inner wall of the bottom of the recess 922 and the top block 18, respectively. The elastic element 19 abuts against the top block 18, causing the top block 18 to tend to extend out of the recess 922. In this embodiment, the elastic element 19 is a spring.

[0059] See Figure 6 The inner wall of the mounting groove 9112 is provided with several grooves 9115. The grooves 9115 are evenly spaced along the sliding direction of the adjusting block 92. The grooves 9115 are for the top block 18 to be inserted into, and the arc surface 181 is used to abut against the inner wall of the groove 9115.

[0060] In practical use, when the adjusting block 92 is moved, the inner wall of the groove 9115 presses against the arc surface 181, pushing the top block 18 away from the groove 9115. When the top block 18 moves to the next groove 9115, the top block 18 is stuck into the groove 9115 under the action of the elastic element 19 and hits the inner wall of the groove 9115 to make a sound. Since the distance between two adjacent grooves 9115 is the same, the adjusting block 92 can be precisely adjusted according to the number of times the adjusting block 92 makes a sound when it is moved.

[0061] See Figure 6 and Figure 8 A through hole 83 is provided on the outer side wall of the movable frame 8. The through hole 83 is located above the fixed post 7 and on the side of the slot 921 near the bottom of the receiving slot 81. The through hole 83 is connected to the receiving slot 81 and is used to connect the slot 921. A positioning member 20 is hinged on the movable frame 8. The positioning member 20 is located on the outside of the movable frame 8. The positioning member 20 includes a hinge part 201, a first snap-in part 202 and a second snap-in part 203. The hinge part 201 is located on the outside of the movable frame 8 and is hinged to the movable frame 8. The hinge axis of the hinge part 201 is perpendicular to the hinge axis of the movable frame 8 and perpendicular to the sliding direction of the adjusting block 92.

[0062] See Figure 8 and Figure 9 Both the first snap-in part 202 and the second snap-in part 203 are located on the side of the hinge part 201 near the movable frame 8. The first snap-in part 202 is hinged to the hinge part 201, and the hinge axis of the first snap-in part 202 is parallel to the hinge axis of the hinge part 201. The second snap-in part 203 is fixedly connected to the hinge part 201, and the first snap-in part 202 and the second snap-in part 203 are located on opposite sides of the hinge axis of the hinge part 201. The first snap-in part 202 is slidably connected in the through hole 83, and the first snap-in part 202 slides closer to or away from the adjusting block 92. The first slot 921 is for the first snap-in part 202 to be snapped into. The end of the first snap-in part 202 away from the hinge part 201 protrudes outward to form an arc-shaped surface 24, which is used to abut against the inner wall of the first slot 921.

[0063] See Figure 8 and Figure 9 The outer wall of the fixed column 7 is provided with a second slot 71 for the second slot 203 to be inserted. When the second slot 203 is located in the second slot 71, the first slot 202 is disengaged from the first slot 921. When the first slot 202 is located in the first slot 921, the second slot 203 is disengaged from the second slot 71.

[0064] See Figure 8 and Figure 9 An elastic element 23 is mounted on the hinge shaft of the hinge portion 201. The elastic element 23 abuts against the movable frame 8, so that when the slot 921 and the insertion portion 202 are aligned, the hinge portion 201 tends to drive the insertion portion 202 to engage with the slot 921. In this embodiment, the elastic element 23 is a torsion spring.

[0065] See Figure 4A slide rail 72 is provided on the outer wall of the fixed column 7. The length direction of the slide rail 72 is set along the flipping direction of the movable frame 8. A limiting slider 84 is integrally fixed on the movable frame 8. The limiting slider 84 slides along the length of the slide rail 72 and is connected within the slide rail 72. An elastic element 25 is also fixed on the fixed column 7. The elastic element 25 is located within the slide rail 72 and on one side of the limiting slider 84 along the sliding direction. The elastic element 25 and the limiting slider 84 are fixedly connected. The elastic element 25 abuts against the limiting slider 84 and thus against the fixed column 7, so that the movable frame 8 has the tendency to flip so that the locking part 202 and the slot 921 are aligned. In this embodiment, the elastic element 25 is a spring.

[0066] See Figure 1 and Figure 10 The feeding mechanism 2 is used to transport the material on the internal mixer 1 to the extruder 3. The feeding mechanism 2 includes a frame 21 and a material cart 22. The material cart 22 is slidably connected to the frame 21. A chain drive mechanism 211 and a motor 212 are installed on the frame 21. The material cart 22 is fixed on the chain of the chain drive mechanism 211. The motor 212 drives the sprocket of the chain drive mechanism 211 to rotate, thereby driving the chain of the chain drive mechanism 211 to rotate, thus driving the material cart 22 to move.

[0067] See Figure 1 The extruder 3 is used to extrude sheet material, and the cutting mechanism 4 is used to cut sheet material. The cutting mechanism 4 includes a frame 41, a cutter 42 and a drive cylinder 43. The cutter 42 slides and moves up and down on the frame 41, and the drive cylinder 43 is fixed on the frame 41. The drive cylinder 43 drives the cutter 42 to move up and down.

[0068] In practical use, the cutting mechanism 4 is used to cut the sheet into materials of uniform size, so that the staff can take the appropriate amount of material as needed and send it into the foaming chamber 6 for foaming.

[0069] See Figure 1 The cooling mechanism 5 is used to cool the sheet material. The cooling mechanism 5 includes a frame 3 51 and several cooling rollers 52. The cooling rollers 52 are arranged vertically and horizontally. The cooling rollers 52 are rotatably connected to the frame 3 51, and the rotation axis of the cooling rollers 52 is set horizontally. Each cooling roller 52 is provided with a cooling channel. Each cooling roller 52 is coaxially rotatably connected with an inlet pipe and an outlet pipe. The inlet pipe and the outlet pipe are located at opposite ends of the cooling channel, and both the inlet pipe and the outlet pipe are connected to the cooling channel. In actual use, the sheet material is attached to the cooling roller 52, and cooling water is introduced into the inlet pipe. The sheet material is cooled by contact heat transfer, which speeds up the sheet material setting.

[0070] See Figure 1The foaming chamber 6 is used to place the sheet material for foaming. In actual use, a heating device is installed in the foaming chamber 6 to heat the sheet material and promote foaming. The heating device can be a heating plate or a heating strip.

[0071] The implementation principle of a foamed EVA production line according to an embodiment of this application is as follows:

[0072] When feeding is required, the adjusting block 92 is moved and positioned according to the required amount of raw material to be fed, so that the slot 921 is moved to match the required mass and amount of raw material to be fed with the through hole 83.

[0073] Then, the raw material is put into the feeding trough 9111, which increases the weight of the feeding frame 9. This causes the elastic element 14 to be squeezed, making the feeding frame 9 move closer to the bottom of the receiving trough 81. When the amount of raw material is put in reaches the required level, the locking part 202 and the locking groove 921 are aligned. Under the action of the elastic element 23, the locking part 202 is locked into the locking groove 921 and disengaged from the locking groove 71. Due to the setting of the inclined surface 15, the weight of the raw material on one side of the hinge axis of the movable frame 8 is greater than the weight of the raw material on the other side of the hinge axis of the movable frame 8. Therefore, the movable frame 8 flips over towards the side with the greater weight, thereby pouring the raw material in the feeding trough 9111 into the feed inlet 111.

[0074] Simultaneously, the plate 161 moves away from the bottom of the material trough 9111 under the action of gravity, thereby scraping the raw materials adhering to the inner wall of the material trough 9111 into the feed hopper 12. The weight-adding part 1623 slides away from the plate 161 under the action of gravity, thereby scraping off the raw materials adhering to the inner wall of the material trough 9111 that are not in contact with the plate 161. The limiting part 912 hits the elastic element 10 and vibrates, thereby shaking off the raw materials adhering to the scraper 16, reducing the residue of raw materials in the material trough 9, realizing quantitative feeding of components, and enabling more precise control of the amount of components fed in.

[0075] After the components are poured out, the movable frame 8 flips under the action of the elastic element 25, so that the locking part 203 and the slot 2 71 are realigned. At this time, the adjusting block 92 presses the arc surface 24 under the action of the elastic element 14, pushing the locking part 202 to drive the hinge part 201 to flip, so that the locking part 203 is locked into the slot 2 71, realizing the automatic reset of the movable frame 8 and positioning the movable frame 8 to continue weighing.

[0076] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foamed EVA production line, comprising in sequence a mixer (1), a feeding mechanism (2), an extruder (3), a cutting mechanism (4), a cooling mechanism (5) and a foaming chamber (6), the feeding mechanism (2) being used to deliver material on the mixer (1) to the extruder (3), the extruder (3) being used to extrude a sheet, the cutting mechanism (4) being used to cut the sheet, and the cooling mechanism (5) being used to cool the sheet, the mixer (1) being provided with a feeding port (111), characterized in that: The fixed column (7) is arranged on the internal mixer (1), the movable frame (8) is hinged on the fixed column (7), the movable frame (8) is located above the feeding port (111), the hinged axis of the movable frame (8) is horizontal, the accommodating groove (81) is arranged on the movable frame (8), the material placing frame (9) is slidably connected to the movable frame (8), the material placing frame (9) slides close to or away from the groove bottom of the accommodating groove (81), the material placing groove (9111) is arranged on the material placing frame (9), the inclined surface (15) is arranged on the groove bottom inner wall of the material placing groove (9111), the inclined direction of the inclined surface (15) is perpendicular to the hinged axis of the movable frame (8), the elastic member one (14) is arranged between the material placing frame (9) and the groove bottom inner wall of the accommodating groove (81); The positioning member (20) is hinged on the movable frame (8), the clamping groove one (921) for clamping the positioning member (20) is arranged on the material placing frame (9), the clamping groove one (921) is located on the side of the positioning member (20) away from the groove bottom of the accommodating groove (81), the clamping groove two (71) for clamping the positioning member (20) is arranged on the fixed column (7), the elastic member two (23) is arranged on the hinged shaft of the positioning member (20), the elastic member two (23) abuts against the movable frame (8), so that the positioning member (20) has the tendency of being clamped into the clamping groove one (921); When the positioning member (20) is located in the clamping groove two (71), the positioning member (20) is separated from the clamping groove one (921), when the positioning member (20) is located in the clamping groove one (921), the positioning member (20) is separated from the clamping groove two (71); The material placing frame (9) comprises the frame body (91) slidably connected to the movable frame (8) and the adjusting block (92) slidably connected to the frame body (91), the sliding direction of the adjusting block (92) is parallel to the sliding direction of the frame body (91), the material placing groove (9111) is arranged on the frame body (91), the clamping groove one (921) is arranged on the adjusting block (92), and the positioning assembly (17) for positioning the adjusting block (92) is arranged on the frame body (91); The top block (18) is slidably connected to the adjusting block (92), the top block (18) slides out of or into the adjusting block (92), a plurality of recesses (9115) for inserting the top block (18) are arranged on the frame body (91), the plurality of recesses (9115) are uniformly and spacedly distributed along the sliding direction of the adjusting block (92), the arc surface (181) is arranged on the end of the top block (18) away from the adjusting block (92), the arc surface (181) is used for abutting against the inner wall of the recess (9115), and the elastic member three (19) is arranged on the adjusting block (92) and abuts against the top block (18), so that the top block (18) has the tendency of extending out of the adjusting block (92).

2. The foamed EVA production line according to claim 1, characterized in that: The positioning assembly (17) comprises a rack (171) arranged on the adjusting block (92), a gear (172) rotatably connected to the frame (91), an insertion block (173) slidably connected to the frame (91), and an operation block (174) rotatably connected to the insertion block (173), the gear (172) is engaged with the rack (171), the gear (172) is provided with an insertion slot (1721) for inserting the insertion block (173), and the operation block (174) is threadedly connected to the frame (91).

3. The foamed EVA production line of claim 1, wherein: The frame (91) is slidably connected with a scraper (16), the scraper (16) is located in the material placing groove (9111), and the scraper (16) slides close to or away from the groove bottom of the material placing groove (9111).

4. The foamed EVA production line of claim 3, wherein: The scraper (16) comprises a plate body (161) slidably connected in the material placing groove (9111) and a weight (162) slidably connected to the plate body (161), the weight (162) is located on one side of the plate body (161) away from the groove bottom of the material placing groove (9111) and on one end of the plate body (161), the weight (162) is located on the side with the maximum groove depth of the material placing groove (9111), and the weight (162) slides close to or away from the plate body (161).

5. The foamed EVA production line of claim 4, wherein: The inner wall of the containing groove (81) is provided with a limiting groove (82), the frame (91) comprises a main body (911) and a limiting portion (912), the material placing groove (9111) is arranged on the main body (911), and the limiting portion (912) is located in the limiting groove (82).

6. The foamed EVA production line of claim 5, wherein: The movable frame (8) is provided with an elastic member four (10), the elastic member four (10) is located in the limiting groove (82) and on the side of the limiting portion (912) away from the groove bottom of the containing groove (81).

7. The foamed EVA production line of claim 1, wherein: The fixed column (7) is provided with an elastic member five (25), the elastic member five (25) abuts against the movable frame (8), so that the movable frame (8) has a tendency to be flipped to align the positioning member (20) with the clamping groove one (921), the positioning member (20) is provided with an arc surface (24), and the arc surface (24) is used for abutting against the inner wall of the clamping groove one (921).

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