Sponge forming and foaming equipment

Abstract

The utility model discloses sponge forming and foaming equipment, and relates to the technical field of sponge production. The sponge forming and foaming equipment comprises a bottom plate, a supporting frame is fixedly installed above the bottom plate, and the sponge forming and foaming equipment is characterized in that a limiting mechanism used for limiting the sponge foaming shape is fixedly installed above the supporting frame, and a downward pressing mechanism is fixedly installed at the top end of the supporting frame and used for discharging harmful gas generated during sponge foaming in a concentrated mode. The limiting mechanism comprises a limiting pipe fixedly installed in the center of the supporting frame, the position of the limiting pipe is fixed, and the supporting table can be driven by the transmission piston to move, so that in the foaming process, the supporting table is located below the limiting pipe, and after foaming is completed, the supporting table is driven by the transmission piston to move out of the lower portion of the limiting pipe. Therefore, the bottom of the foamed sponge is free of structural support, the sponge can be vertically pushed out of the limiting pipe downwards from the upper portion, and the sponge can be taken out conveniently after being foamed.

Description

Technical Field

[0001] This utility model relates to the field of sponge production technology, specifically to a sponge molding and foaming equipment. Background Technology

[0002] Sponge foaming molding refers to the process of mixing raw materials through a specific process, foaming and shaping them in a mold. By mixing foaming agents with raw materials and then allowing them to expand and solidify under specific conditions, a porous structure is formed. This process is widely used in the production of various types of sponges, such as those used in the furniture, packaging and cleaning industries.

[0003] The existing Chinese utility model patent with publication number CN221697663U discloses an environmentally friendly sponge foaming device, including a base. Multiple telescopic columns are fixedly installed near the four corners of the upper surface of the base. These telescopic columns are collectively and fixedly connected to a lifting plate. A mounting frame is fixedly installed on the upper surface of the lifting plate. An absorption box is fixedly installed at the upper end of the mounting frame. A condensation structure is fixedly installed near the end of the inner wall of the absorption box. Two activated carbon rollers are rotatably installed at the upper ends of both ends of the inner wall of the absorption box. Parallel gears are fixedly fitted onto one end of each of the two activated carbon rollers, and the two parallel gears are meshed and connected. This utility model provides an environmentally friendly sponge foaming device that accelerates heat transfer, allowing the sponge to cool quickly. It also flattens the liquid sponge material, resulting in a uniform thickness of the foamed sponge, eliminating the need for surface trimming.

[0004] Harmful gases may be generated during the foaming process of sponge. For example, some types of polyurethane (PU) sponges may release harmful substances such as isocyanates during the foaming process. Existing foaming equipment cannot centrally discharge the harmful gases generated during the foaming process. Furthermore, after the sponge is foamed, it will adhere to the limiting structure, which will prevent the raw materials from being discharged quickly after expansion and molding, thus affecting production efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a sponge molding and foaming equipment that solves the problems of harmful gases easily spreading during the foaming process and the difficulty in expelling them after the sponge expands.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a sponge molding and foaming equipment, including a base plate, and a support frame is fixedly installed on the top of the base plate, characterized in that: a limiting mechanism for limiting the shape of the sponge foam is fixedly installed on the top of the support frame, and a pressing mechanism is fixedly installed at the top of the support frame for collecting and discharging harmful gases generated during sponge foaming;

[0007] The limiting mechanism includes a limiting tube fixedly installed at the center of the support frame, a support platform movably installed below the limiting tube, and a transmission piston fixedly installed on the left side of the support platform.

[0008] The pressing mechanism includes a pressing piston fixedly installed on the top of the support frame. A partition is fixedly installed at the bottom of the pressing piston. A connecting pipe is inserted through one side of the partition. An air pump is fixedly installed at the top of the connecting pipe. Connecting columns are inserted through the four corners of the partition. Springs are inserted through the outside of the connecting columns. A linkage pipe is fixedly installed at the bottom of the connecting columns.

[0009] Preferably, the limiting tube is a hollow tubular structure, the left end of the transmission piston is fixedly connected to the base plate, and the movable end points horizontally to the right. The support platform is movably connected to the base plate through the transmission piston, and the top end of the support platform contacts the bottom end of the limiting tube.

[0010] Preferably, the pressing piston is symmetrically installed at the top of the support frame with the center of the support frame as the reference, and the movable end of the pressing piston points vertically towards the bottom plate.

[0011] Preferably, the bottom of the partition is provided with symmetrical cylindrical protrusions, the bottom end of the connecting pipe penetrates through the partition, and the bottom end of the connecting pipe is flush with the bottom surface of the partition.

[0012] Preferably, the top of the connecting column is provided with an annular anti-slip protrusion, the connecting column and the partition are slidably connected, and the spring is located below the partition and between the bottom surface of the inner cavity of the linkage tube.

[0013] Preferably, the inner cavity of the linkage tube is fitted with the partition plate, and the bottom end is provided with an opening structure that fits into the bottom protrusion of the partition plate.

[0014] Beneficial effects

[0015] This invention provides a sponge molding and foaming device. Compared with the prior art, it has the following advantages:

[0016] (1) The sponge molding and foaming equipment has a fixed position of the limiting tube by setting a support platform, while the support platform can move under the drive of the transmission piston. Thus, during the foaming process, the support platform is located below the limiting tube. After the foaming is completed, the support platform is moved out from below the limiting tube by the transmission piston, so that the bottom of the foamed sponge has no structural support, so that the sponge can be pushed vertically downward from the top of the limiting tube, so that the sponge can be taken out after foaming.

[0017] (2) In this sponge molding and foaming equipment, the air pump is used to extend the bottom piston during the foaming process, so that the cylindrical protrusion at the bottom of the partition is embedded into the bottom of the linkage pipe. The length is kept at the same level as the bottom protrusion of the partition and the bottom surface of the linkage pipe to ensure the flatness of the top of the sponge during foaming. At the same time, the air pump is always turned on. The air inlet of the air pump is connected to the top of the connecting pipe. The bottom of the connecting pipe passes through the partition and is flush with the bottom surface of the partition, so that harmful gases are discharged in a concentrated manner. This facilitates the collection of harmful gases or direct passage into the treatment equipment through the pipeline structure. After the foaming is completed, the bottom piston retracts, and the protrusion structure at the bottom of the partition moves out from the inside of the bottom of the linkage pipe. The gas inside the limiting pipe will be drawn out by the air pump, and the outside air can enter from the bottom of the limiting pipe after the support platform is removed. This allows the harmful gases generated during the foaming process to be discharged from the exhaust end of the air pump in a concentrated manner, preventing the diffusion of harmful gases. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the limiting tube of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the partition and the air pump of this utility model;

[0021] Figure 4 This is a schematic diagram of the spring mounting structure of this utility model;

[0022] In the diagram: 1. Base plate; 11. Support frame; 2. Limiting mechanism; 21. Limiting tube; 22. Support platform; 23. Transmission piston; 3. Pressing mechanism; 31. Pressing piston; 32. Partition plate; 33. Connecting tube; 34. Air pump; 35. Connecting column; 36. Spring; 37. Linkage tube. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides a technical solution: a sponge molding and foaming equipment, including a base plate 1, a support frame 11 fixedly installed above the base plate 1, a limiting mechanism 2 for limiting the shape of the sponge foam fixedly installed above the support frame 11, the limiting mechanism 2 including a limiting tube 21 fixedly installed at the center of the support frame 11, a support platform 22 movably installed below the limiting tube 21, a transmission piston 23 fixedly installed on the left side of the support platform 22, the limiting tube 21 is a hollow tubular structure, the left end of the transmission piston 23 is fixedly connected to the base plate 1, and the movable end points horizontally to the right, the support platform 22 is movably connected to the base plate 1 through the transmission piston 23, and the top end of the support platform 22 contacts the bottom end of the limiting tube 21.

[0025] Specifically, the base plate 1 can limit the support surface of the support frame 11 and support the support platform 22. The support frame 11 can limit the position of the limiting tube 21. The position of the limiting tube 21 is fixed, while the support platform 22 can move under the drive of the transmission piston 23. Thus, during the foaming process, the support platform 22 is located below the limiting tube 21. After the foaming is completed, the transmission piston 23 drives the support platform 22 to move out from below the limiting tube 21, so that the bottom of the foamed sponge is unsupported, so that the sponge can be pushed vertically downward from the top of the limiting tube 21.

[0026] A pressing mechanism 3 is fixedly installed at the top of the support frame 11 to centrally discharge harmful gases generated during sponge foaming. The pressing mechanism 3 includes a pressing piston 31 fixedly installed at the top of the support frame 11, a partition 32 fixedly installed at the bottom of the pressing piston 31, a connecting pipe 33 inserted through one side of the partition 32, an air pump 34 fixedly installed at the top of the connecting pipe 33, connecting posts 35 inserted through the four corners of the partition 32, springs 36 inserted through the outer side of the connecting posts 35, and a linkage pipe 37 fixedly installed at the bottom of the connecting posts 35. The pressing piston 31 is based on the center of the support frame 11. The piston 31 is symmetrically installed on the top of the support frame 11, with the movable end of the piston 31 pointing vertically towards the bottom plate 1. The bottom of the partition plate 32 is provided with symmetrical cylindrical protrusions. The bottom end of the connecting pipe 33 passes through the partition plate 32, and the bottom end of the connecting pipe 33 is flush with the bottom surface of the partition plate 32. The top of the connecting column 35 is provided with an annular anti-slip protrusion. The connecting column 35 and the partition plate 32 form a sliding connection. The spring 36 is located between the bottom of the partition plate 32 and the bottom surface of the inner cavity of the linkage pipe 37. The inner cavity of the linkage pipe 37 is fitted with the partition plate 32, and the bottom end is provided with an opening structure that fits into the bottom protrusion of the partition plate 32.

[0027] Specifically, the downward-pressing piston 31 can drive the partition 32 to move downward. Since the partition 32 is fitted inside the linkage tube 37, and the distance between the linkage tube 37 and the partition 32 is limited by the connecting column 35, the spring 36 between the linkage tube 37 and the partition 32 can press the linkage tube 37 against the top of the limiting tube 21 through elastic force before the bottom surface of the partition 32 contacts the bottom end of the inner cavity of the linkage tube 37. During the foaming process, the downward-pressing piston 31 extends to embed the cylindrical protrusion at the bottom of the partition 32 into the bottom of the linkage tube 37, and maintains the length of the protrusion at the bottom of the partition 32 flush with the bottom surface of the linkage tube 37, so as to ensure the flatness of the top during foaming. The air pump 34 is always on. The air inlet of the air pump 34 is connected to the top of the connecting pipe 33. The bottom of the connecting pipe 33 passes through the partition 32 and is flush with the bottom surface of the partition 32, so as to concentrate and discharge the harmful gas, so as to facilitate the collection of the harmful gas or directly introduce it into the treatment equipment through the pipeline structure. After the foaming is completed, the piston 31 is retracted and the protruding structure at the bottom of the partition 32 moves out from the inside of the bottom of the linkage pipe 37. The gas inside the limiting pipe 21 will be drawn out by the air pump 34, and the outside air can enter from the bottom of the limiting pipe 21 after the support platform 22 is removed. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0028] During operation, the position of the limiting tube 21 is fixed, while the support platform 22 can move under the drive of the transmission piston 23. This allows the support platform 22 to be positioned below the limiting tube 21 during the foaming process. After foaming, the transmission piston 23 moves the support platform 22 out from below the limiting tube 21, leaving the bottom of the foamed sponge without structural support. This facilitates the vertical pushing of the sponge downwards from above into the limiting tube 21, making it easy to remove the foamed sponge. During the foaming process, the downward-pressing piston 31 extends, causing the cylindrical protrusion at the bottom of the partition 32 to embed into the bottom of the linkage tube 37, maintaining the length of the protrusion at the bottom of the partition 32 flush with the bottom surface of the linkage tube 37 to ensure proper foaming. The top is flat, and the air pump 34 is always on. The air inlet of the air pump 34 is connected to the top of the connecting pipe 33. The bottom of the connecting pipe 33 passes through the partition 32 and is flush with the bottom surface of the partition 32. Harmful gases are concentrated and discharged to facilitate collection of harmful gases or direct introduction into the treatment equipment through the pipeline structure. After foaming is completed, the piston 31 is retracted, and the protruding structure at the bottom of the partition 32 moves out from the inside of the bottom of the linkage pipe 37. The gas inside the limiting pipe 21 will be drawn out by the air pump 34, and external air can enter from the bottom of the limiting pipe 21 after the support platform 22 is removed. Thus, the harmful gases generated during the foaming process are concentrated and discharged from the exhaust end of the air pump 34 to prevent the diffusion of harmful gases.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sponge forming and foaming device comprising a base plate (1), a supporting frame (11) is fixedly installed above the base plate (1), characterized in that: The upper part of the support frame (11) is fixedly installed with a limiting mechanism (2) for limiting the sponge foaming shape, and the top end of the support frame (11) is fixedly installed with a pressing mechanism (3) for concentrating and discharging harmful gas generated during sponge foaming. The limiting mechanism (2) comprises a limiting tube (21) fixedly installed at the center of the support frame (11), and a supporting table (22) movably installed below the limiting tube (21), and a transmission piston (23) fixedly installed on the left side of the supporting table (22). The pressing mechanism (3) comprises a pressing piston (31) fixedly installed at the top end of the support frame (11), a partition plate (32) fixedly installed at the bottom end of the pressing piston (31), a connecting pipe (33) penetratingly installed on one side of the partition plate (32), a gas pump (34) fixedly installed at the top end of the connecting pipe (33), connecting columns (35) penetratingly installed at the four corners of the partition plate (32), springs (36) penetratingly installed on the outer side of the connecting columns (35), and a linkage pipe (37) fixedly installed at the bottom end of the connecting columns (35).

2. A sponge forming and foaming apparatus according to claim 1, wherein: The limiting tube (21) is a hollow tubular structure, the left end of the transmission piston (23) is fixedly connected with the bottom plate (1), and the movable end is horizontally directed to the right side, the supporting table (22) is movably connected between the transmission piston (23) and the bottom plate (1), and the top end of the supporting table (22) is in contact with the bottom end of the limiting tube (21).

3. A sponge forming and foaming apparatus according to claim 1, wherein: The pressing piston (31) is symmetrically installed at the top end of the support frame (11) with the center of the support frame (11) as a reference, and the movable end of the pressing piston (31) is vertically directed to the bottom plate (1).

4. A sponge forming and foaming apparatus according to claim 1, wherein: The bottom of the partition plate (32) is provided with front and rear symmetrical cylindrical protrusions, the bottom end of the connecting pipe (33) penetrates the partition plate (32), and the bottom end of the connecting pipe (33) is flush with the bottom surface of the partition plate (32).

5. A sponge forming and foaming apparatus as claimed in claim 1, wherein: The top end of the connecting column (35) is provided with an annular anti-slip protrusion, the connecting column (35) and the partition plate (32) are slidably connected, and the spring (36) is located between the bottom of the partition plate (32) and the bottom surface of the inner cavity of the linkage pipe (37).

6. A sponge forming and foaming apparatus as defined in claim 1, wherein: The inner cavity of the linkage pipe (37) is embedded with the partition plate (32), and the bottom end is provided with an opening structure embedded with the protrusion at the bottom of the partition plate (32).

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