Foam product forming machine

Abstract

The invention relates to the technical field of foam production, in particular to a foam product forming machine which comprises a foam forming machine body, a supporting frame is fixedly connected to the top of the foam forming machine body, a lower mold is fixedly connected to the top of the foam forming machine body, and telescopic air cylinders are fixedly connected to the two sides of the top of the supporting frame. One end of the telescopic air cylinder is fixedly connected with an upper mold, a discharging mechanism used for discharging demolded foam is arranged on the side wall of the foam forming machine body, and cleaning mechanisms used for cleaning impurities in the lower mold and the upper mold are arranged at the two ends of the side wall of the foam forming machine body. The discharging mechanism comprises a cross-shaped connecting rod rotationally connected to the two ends of one side between the upper mold and the foam forming machine body. Compared with the prior art, automatic discharging is achieved through the discharging mechanism, potential safety hazards caused by equipment operation or misoperation are reduced, safety is improved, repeated labor of workers is reduced, and labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of foam production, in particular to a foam product forming machine. Background Art

[0002] Foam product molding machines are widely used in modern manufacturing, especially in the construction, packaging, home furnishing and other industries, for the production of foam products of various shapes and specifications, such as building insulation boards, packaging protection materials, sound insulation boards, etc. This type of molding equipment usually consists of an upper mold and a lower mold. There is a foaming cavity inside the mold, which is used to inject foaming materials and expand them by heating and pressurizing. In order to improve production efficiency and product quality, most foam molding machines will have an ejection mechanism inside the mold. The ejection mechanism generally includes a pneumatic or hydraulic push rod, or a spring ejector, etc., which is used to eject the formed foam board from the mold for subsequent operations.

[0003] In traditional technology, after the foam boards in the upper and lower molds are ejected from the molds by starting the ejection mechanism, there is no unloading mechanism. The ejected foam boards are still in the molding machine, and workers are required to take the foam boards. However, the temperature of the foam boards after demolding is usually maintained above 50°C, and may even reach 70°C or even higher in some special cases. Although there are devices to cool the foam boards, the molding machine, the surface temperature of the foam boards and the environment are still high within a short period of time after cooling. In this case, when workers take the foam boards, their hand skin is very likely to be burned, which not only increases the operational risks in production, but also wastes time and effort when taking them. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a foam product forming machine to solve the problem that the staff does not need to pick up the ejected foam board, and the skin of the hands is very likely to be burned when picking up the board, which not only increases the operational risk in production, but also wastes time and effort when picking up the board.

[0005] Based on the above-mentioned purpose, the present invention provides a foam product molding machine, including a foam molding machine body, the top of the foam molding machine body is fixedly connected to a support frame, the top of the foam molding machine body is fixedly connected to a lower mold, the top two sides of the support frame are fixedly connected to telescopic cylinders, one end of the telescopic cylinder is fixedly connected to an upper mold, the side wall of the foam molding machine body is provided with a unloading mechanism for unloading the foam after demolding, and both ends of the side wall of the foam molding machine body are provided with cleaning mechanisms for cleaning impurities in the lower mold and the upper mold.

[0006] Preferably, the unloading mechanism includes a cross connecting rod rotatably connected at both ends of one side between the upper mold and the foam molding machine body, and two connecting rods are rotatably connected between the two ends of the cross connecting rod away from the foam molding machine body. The connection of the two connecting rods is rotatably connected to a moving rod, and a connecting groove is provided on the side wall of the moving rod. The connection of the cross connecting rod is rotatably connected to a rotating wheel, and the rotating wheel extends and is slidably connected in the connecting groove, and one end of the moving rod is fixedly connected to a material receiving plate.

[0007] Preferably, the bottom of the moving rod is fixedly connected to a support plate, the bottom of the receiving plate is fixedly connected to a tilting rod, the side wall of the foam molding machine body is fixedly connected to a first fixed plate, the top of the first fixed plate is fixedly connected to a resistance rod, and the tilting rod and the resistance rod are in contact with each other.

[0008] Preferably, the cleaning mechanism includes a second fixed plate fixedly connected to both ends of one side of the foam molding machine body, one end of the second fixed plate is rotatably connected to an air cylinder, the inside of the air cylinder is slidably connected to a rubber piston, the side wall of the rubber piston is fixedly connected to an extrusion rod, one end of the extrusion rod passes through the outer wall of the air cylinder and is fixedly connected to a fixed block, the fixed block is fixedly connected to the side wall of the moving rod, the other side of the fixed block is fixedly connected to an injection pipe, an air supply pipe is fixedly connected between the injection pipe and the air cylinder, and the top and bottom of the injection pipe are connected to a plurality of equidistant and evenly distributed injection heads.

[0009] Preferably, a flexible cleaning brush is fixedly connected to the bottom of the air jet pipe, and an outer wall of the flexible cleaning brush is in contact with the top of the lower mold.

[0010] Preferably, a one-way valve for air intake is provided at one end of the interior of the air storage cylinder close to the second fixing plate.

[0011] Preferably, the support plate is L-shaped, one end of the support plate is fixedly connected to a vertical rod, and the top end of the vertical rod is fixedly connected to a buffer pad.

[0012] Preferably, the air jet head is inclined in a direction away from the receiving plate.

[0013] Preferably, a return spring is fixedly connected to the top of the support plate, and one end of the return spring is fixedly connected to the bottom of the receiving plate.

[0014] Preferably, the outer wall of the rubber piston is in close contact with the inner wall of the air storage cylinder.

[0015] The beneficial effects of the present invention are as follows: a foam product molding machine, when the upper mold in the unloading mechanism moves upward, the moving rod will be driven to move toward the upper mold through the cross connecting rod and the second connecting rod, and then the moving rod will drive the receiving plate and the air injection pipe in the cleaning mechanism to move, and the foam board ejected from the lower mold can be pushed to leave the inside of the foam molding machine body through the air injection pipe, and then when the upper mold moves upward, the foam board is ejected from the upper mold through the ejection mechanism and falls to the top of the receiving plate, and when the upper mold moves downward to continue to produce the foam board, the cross connecting rod and the second connecting rod will be pushed to drive the foam board on the top of the receiving plate to leave the foam molding machine body and cooperate with the resistance rod to make the receiving plate tilt and fall into the storage container, thereby preventing operators from directly contacting high-temperature foam boards and molding machine equipment, etc., reducing the risk of scalding, realizing automatic unloading, reducing safety hazards caused by equipment operation or misoperation, improving safety, reducing repetitive labor of staff, and reducing labor intensity.

[0016] A foam product forming machine, the cleaning mechanism drives the movement of a fixed block and an extrusion rod through the movement of a moving rod in a feeding mechanism, when the extrusion rod squeezes the rubber piston inside the air storage cylinder, the air inside the air storage cylinder will be compressed and transported to the inside of an injection pipe through an air pipe, and the top and bottom of the injection pipe are respectively provided with injection heads, which can blow air into the interior of an upper mold and a lower mold, and the airflow can quickly and effectively remove dust, tiny particles and foam material debris generated in the production process in the mold, so as to prevent these impurities from adhering to the foam product during the forming process, causing indentations or unevenness, resulting in surface defects or quality problems, and significantly improving the appearance quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall three-dimensional structure of the feeding mechanism and the cleaning mechanism of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the blanking mechanism of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the moving rod and the material receiving plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the tilting rod and the interference rod of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the rubber piston and the one-way valve of the present invention.

[0019] The markings in the figure are: 1. Foam molding machine body; 2. Support frame; 3. Lower mold; 4. Telescopic cylinder; 5. Upper mold; 6. Cross connecting rod; 7. Second connecting rod; 8. Moving rod; 9. Connecting groove; 10. Rotating wheel; 11. Receiving plate; 12. Support plate; 13. Return spring; 14. Tilt rod; 15. First fixed plate; 16. Resistance rod; 17. Second fixed plate; 18. Air storage cylinder; 19. Rubber piston; 20. Extrusion rod; 21. Fixed block; 22. Jet pipe; 23. Air supply pipe; 24. Jet head; 25. Flexible cleaning brush; 26. One-way valve; 27. Vertical rod. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 7 As shown, a foam product molding machine includes a foam molding machine body 1, a support frame 2 is fixedly connected to the top of the foam molding machine body 1, a lower mold 3 is fixedly connected to the top of the foam molding machine body 1, telescopic cylinders 4 are fixedly connected to the top two sides of the support frame 2, an upper mold 5 is fixedly connected to one end of the telescopic cylinder 4, a side wall of the foam molding machine body 1 is provided with a unloading mechanism for unloading the foam after demolding, and cleaning mechanisms for cleaning impurities in the lower mold 3 and the upper mold 5 are provided at both ends of the side wall of the foam molding machine body 1.

[0023] For further information, see Attachment Figures 1 to 5As shown, the unloading mechanism includes a cross link 6 rotatably connected to both ends of one side between the upper mold 5 and the foam molding machine body 1, the cross link 6 is rotatably connected with two links 7 between the two ends away from the foam molding machine body 1, the connection of the two links 7 is rotatably connected with a moving rod 8, the side wall of the moving rod 8 is provided with a connecting groove 9, the connection of the cross link 6 is rotatably connected with a rotating wheel 10, the rotating wheel 10 extends and is slidably connected in the connecting groove 9, one end of the moving rod 8 is fixedly connected with a material receiving plate 11, the bottom of the moving rod 8 is fixedly connected with a supporting plate 12, the top of the supporting plate 12 is fixedly connected with a return spring 13, one end of the return spring 13 is fixedly connected to the bottom of the material receiving plate 11, the bottom of the material receiving plate 11 is fixedly connected with a tilting rod 14, the side wall of the foam molding machine body 1 is fixedly connected with a first fixed plate 15, the top of the first fixed plate 15 is fixedly connected with a resisting rod 16, and the tilting rod 14 and the resisting rod 16 are in contact with each other;When the lowering mechanism is in use, the upper mold 5 is driven to rise by the telescopic cylinder 4. When the upper mold 5 rises, the cross connecting rod 6 is pulled to drive the second connecting rod 7 to approach the bottom of the upper mold 5. Then, one end of the cross connecting rod 6 and the second connecting rod 7 drives the moving rod 8 to move. The moving rod 8 drives the receiving plate 11 and the injection pipe 22 to move to the bottom of the upper mold 5. At this time, the ejection mechanism at the bottom of the lower mold 3 is cooperated to push the foam board into the lower mold 3. When the injection pipe 22 moves to the bottom of the upper mold 5, the foam board will be pushed out of the top of the lower mold 3. When the foam board inside the upper mold 5 is demoulded by the ejection mechanism arranged on the top of the upper mold 5, the foam board will fall onto the receiving plate 11. The top of the upper mold 5, at this time, the telescopic cylinder 4 will drive the upper mold 5 to move downward and fit the lower mold 3 to continue to produce the foam product. When the upper mold 5 moves downward, the upper mold 5 will push the cross connecting rod 6, and the cross connecting rod 6 will drive the second connecting rod 7 and the receiving plate 11 to move away from the bottom of the upper mold 5. Then the inclined rod 14 at the bottom of the receiving plate 11 will contact the resistance rod 16. When the receiving plate 11 continues to move away from one side, the resistance rod 16 will squeeze the inclined rod 14. When the inclined rod 14 is squeezed, it will move the receiving plate 11 to rotate to one side. When the receiving plate 11 rotates to one side, it will pull the return springs 13 on both sides. At this time, the foam board at the top of the receiving plate 11 will be moved by the receiving plate When the upper mold 5 in the unloading mechanism moves upward, it will drive the moving rod 8 to move toward the upper mold 5 through the cross connecting rod 6 and the second connecting rod 7, and then the moving rod 8 drives the receiving plate 11 and the air injection pipe 22 in the cleaning mechanism to move, and the foam board ejected from the lower mold 3 can be pushed out of the foam molding machine body 1 through the air injection pipe 22, and then the foam board ejected from the lower mold 3 can be pushed out of the foam molding machine body 1. When the upper mold 5 moves upward, the foam board is ejected from the upper mold 5 by the ejection mechanism and falls to the top of the receiving plate 11. When the upper mold 5 moves downward to continue producing the foam board, the cross connecting rod 6 and the second connecting rod 7 are pushed to drive the foam board on the top of the receiving plate 11 to leave the foam molding machine body 1 and cooperate with the resistance rod 16 to make the receiving plate 11 tilt and fall into the storage container, thereby preventing the operator from directly contacting the high-temperature foam board and molding machine equipment, reducing the risk of scalding, realizing automatic unloading, reducing the safety hazards caused by equipment operation or misoperation, improving safety, reducing the repetitive work of the staff, and reducing the labor intensity. ;

[0024] For further information, see Attachment Figure 6 and Figure 7As shown, the cleaning mechanism includes a second fixed plate 17 fixedly connected to both ends of one side of the foam molding machine body 1, one end of the second fixed plate 17 is rotatably connected to an air storage cylinder 18, the interior of the air storage cylinder 18 is slidably connected to a rubber piston 19, the side wall of the rubber piston 19 is fixedly connected to an extrusion rod 20, one end of the extrusion rod 20 passes through the outer wall of the air storage cylinder 18 and is fixedly connected to a fixed block 21, the fixed block 21 is fixedly connected to the side wall of the moving rod 8, the other side of the fixed block 21 is fixedly connected to an injection pipe 22, an air delivery pipe 23 is fixedly connected between the injection pipe 22 and the air storage cylinder 18, the top and bottom of the injection pipe 22 are connected to a plurality of equidistant and evenly distributed injection heads 24, the bottom of the injection pipe 22 is fixedly connected to a flexible cleaning brush 25, the bottom of the injection pipe 22 is fixedly connected to a flexible cleaning brush 25, the outer wall of the flexible cleaning brush 25 contacts the top of the lower mold 3, and the injection head 24 is inclined in the direction away from the receiving plate 11; when the cleaning mechanism is in use When the moving rod 8 in the unloading mechanism is away from the bottom of the upper mold 5, the moving rod 8 will drive the fixed block 21 to move. When the fixed block 21 moves, it will drive the extrusion rod 20 to move. The extrusion rod 20 will squeeze the rubber piston 19 inside the air storage cylinder 18. When the rubber piston 19 is squeezed, the air inside the air storage cylinder 18 will be transported to the inside of the injection pipe 22 that moves with the receiving plate 11 through the air delivery pipe 23, and then through the injection nozzles 24 arranged at the top and bottom of the injection nozzle 22, the air is blown from the injection nozzle 24 to the top of the lower mold 3 and the bottom of the upper mold 5, so that the dust, impurities and residues inside the lower mold 3 and the upper mold 5 can be blown away while moving. When the injection nozzle 22 moves, it will drive the flexible cleaning brush 25 to move. When the flexible cleaning brush 25 moves, it will sweep and clean the residues that fall off or are stubborn on the top of the lower mold 3. The cleaning mechanism drives the movement of the fixed block 21 and the extrusion rod 20 through the movement of the moving rod 8 in the unloading mechanism. When the extrusion rod 20 squeezes the rubber piston 19 inside the air storage cylinder 18, the air inside the air storage cylinder 18 will be compressed and transported to the inside of the air injection pipe 22 through the air delivery pipe 23. The top and bottom of the air injection pipe 22 are respectively provided with nozzles 24, which can blow air into the upper mold 5 and the lower mold 3. The airflow can quickly and effectively remove dust, tiny particles and foam material debris generated during the production process in the mold, so as to prevent these impurities from adhering to the foam product during the molding process, causing indentations or unevenness, resulting in surface defects or quality problems, and significantly improving the appearance quality of the finished product.

[0025] For further information, see Attachment Figure 7As shown, a one-way valve 26 for air intake is provided at one end of the air storage cylinder 18 near the second fixed plate 17. When the rubber piston 19 moves away from the one-way valve 26 through the one-way valve 26, negative pressure will be generated inside the air storage cylinder 18, and air will enter the air storage cylinder 18 through the one-way valve 26. When the rubber piston 19 approaches the one-way valve 26, the air will be squeezed. At this time, the one-way valve 26 is in a closed state, and the air can only be squeezed to the air pipe 23, so that the air can only enter but not exit.

[0026] For further information, see Attachment Figure 5 As shown, the support plate 12 is L-shaped, and one end of the support plate 12 is fixedly connected to a vertical rod 27, and the top of the vertical rod 27 is fixedly connected to a buffer pad. The vertical rod 27 is provided to support and limit the connecting plate 11, and the buffer pad is provided to ensure that the connecting plate 11 will contact the top of the vertical rod 27 after rotating and offsetting to unload and return to the normal state. The buffer pad effectively buffers the contact force between the connecting plate 11 and the vertical rod 27, thereby avoiding the situation where the connecting plate 11 is subjected to a large force and causes deformation of the outer wall.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0028] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A foam product forming machine, comprising a foam forming machine body (1), the top of the foam forming machine body (1) is fixedly connected to a support frame (2), the top of the foam forming machine body (1) is fixedly connected to a lower mold (3), both sides of the top of the support frame (2) are fixedly connected to a telescopic cylinder (4), one end of the telescopic cylinder (4) is fixedly connected to an upper mold (5), characterized in that: The side wall of the foam molding machine body (1) is provided with a material discharge mechanism for discharging the foam after demoulding, and the two ends of the side wall of the foam molding machine body (1) are provided with cleaning mechanisms for cleaning impurities in the lower mold (3) and the upper mold (5).

2. A foam product forming machine according to claim 1, characterized in that: The material discharge mechanism comprises a cross connecting rod (6) rotatably connected to the two ends of one side between the upper mold (5) and the foam molding machine body (1); two connecting rods (7) are rotatably connected between the two ends of the cross connecting rod (6) away from the foam molding machine body (1); a moving rod (8) is rotatably connected to the connection of the two connecting rods (7); a connecting groove (9) is provided on the side wall of the moving rod (8); a rotating wheel (10) is rotatably connected to the connection of the cross connecting rod (6); the rotating wheel (10) extends and is slidably connected in the connecting groove (9); and a material receiving plate (11) is fixedly connected to one end of the moving rod (8).

3. A foam product forming machine according to claim 2, characterized in that: The bottom of the moving rod (8) is fixedly connected to a support plate (12), the bottom of the material receiving plate (11) is fixedly connected to a tilting rod (14), the side wall of the foam forming machine body (1) is fixedly connected to a first fixing plate (15), the top of the first fixing plate (15) is fixedly connected to a resisting rod (16), and the tilting rod (14) and the resisting rod (16) are in contact with each other.

4. A foam product forming machine according to claim 1, characterized in that: The cleaning mechanism comprises a second fixed plate (17) fixedly connected to both ends of one side of the foam forming machine body (1); one end of the second fixed plate (17) is rotatably connected to an air storage cylinder (18); a rubber piston (19) is slidably connected to the interior of the air storage cylinder (18); a side wall of the rubber piston (19) is fixedly connected to an extrusion rod (20); one end of the extrusion rod (20) penetrates the outer wall of the air storage cylinder (18) and is fixedly connected to a fixed block (21); the fixed block (21) is fixedly connected to the side wall of the moving rod (8); an air jet pipe (22) is fixedly connected to the other side of the fixed block (21); an air delivery pipe (23) is fixedly connected between the air jet pipe (22) and the air storage cylinder (18); and a plurality of air jet heads (24) that are evenly distributed at equal distances are connected to the top and bottom of the air jet pipe (22).

5. A foam product forming machine according to claim 4, characterized in that: A flexible cleaning brush (25) is fixedly connected to the bottom of the air jet pipe (22), and the outer wall of the flexible cleaning brush (25) is in contact with the top of the lower mold (3).

6. A foam product forming machine according to claim 4, characterized in that: A one-way valve (26) for air intake is provided at one end of the interior of the air storage cylinder (18) close to the second fixing plate (17).

7. A foam product forming machine according to claim 3, characterized in that: The support plate (12) is in an L-shape, one end of the support plate (12) is fixedly connected to a vertical rod (27), and the top end of the vertical rod (27) is fixedly connected to a buffer pad.

8. A foam product forming machine according to claim 4, characterized in that: The air jet head (24) is inclined in a direction away from the receiving plate (11).

9. A foam product forming machine according to claim 3, characterized in that: A return spring (13) is fixedly connected to the top of the support plate (12), and one end of the return spring (13) is fixedly connected to the bottom of the receiving plate (11).

10. A foam product forming machine according to claim 4, characterized in that: The outer wall of the rubber piston (19) is tightly fitted to the inner wall of the air storage cylinder (18).

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