Foam cutting equipment
By designing a foam cutting device, an electric heating wire mesh frame and a drive motor are used to achieve efficient foam cutting, which solves the problem of low efficiency of existing equipment and is suitable for small foam processing enterprises.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN FUZENG FOAM PLASTIC CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-19
AI Technical Summary
Existing foam cutting equipment is inefficient, and manual cutting is time-consuming and labor-intensive, making it difficult to efficiently cut large foam blocks into smaller pieces for easy crushing.
A foam cutting device was designed, comprising a frame, an electric heating wire mesh frame, and a cutting drive unit. The electric heating wire mesh frame and drive motor are used to cut foam into multiple small pieces, and the cutting and unloading are automated by combining the receiving roller and the discharge conveyor belt.
It achieves efficient foam slitting, improves cutting efficiency, reduces equipment costs, and is suitable for small foam processing enterprises.
Smart Images

Figure CN224255827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foam processing technology, and in particular to a foam cutting device. Background Technology
[0002] Foam is a material made by foaming plastic particles. Due to its advantages such as elasticity, light weight, quick pressure-sensitive fixing, ease of use, flexibility, ultra-thin thickness, and reliable performance, it can be widely used in industries such as sofas, mattresses, clothing, and soft packaging.
[0003] Foam can be foamed and molded to achieve the required elasticity and density properties. The foamed foam is formed in mold cavities such as foaming tanks. Based on the requirements of conservation and environmental protection, some manufacturers collect the leftover materials and defective products that do not meet the requirements during foam production. The collected foam is then crushed, mixed with adhesive, and molded again to produce foam that meets the requirements, thus achieving the purpose of recycling.
[0004] Before pulverizing foam, the foam is often too large to be directly fed into the hopper of the pulverizer. Therefore, it needs to be cut into smaller pieces to facilitate feeding into the pulverizer. In the industry, this is usually done by operators using hand-held cutting tools or by conventional single-pass automatic cutting equipment. However, completing multiple cuts requires repeated operations, which is inefficient. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide a foam cutting device to solve the above problems.
[0006] The present invention adopts the following technical solution:
[0007] This utility model first provides a foam cutting device, which includes a frame, an electric heating wire mesh frame and a cutting drive unit.
[0008] The frame includes an upper frame, a lower frame, and sliding rods. The four corners of the upper frame are connected to the four corners of the lower frame by four sliding rods. The lower frame has multiple spaced-apart material-bearing rollers arranged side by side to hold the foam to be cut. The heating wire mesh frame has multiple spaced-apart heating wires arranged side by side to cut the foam into corresponding small pieces. The distance between adjacent heating wires is smaller than the distance between adjacent material-bearing rollers. The four corners of the heating wire mesh frame are slidably fitted onto the four sliding rods by sliders. The cutting drive unit includes a mounting beam, a drive motor, and a lifting platform. The mounting beam is fixed to the upper frame and spans over the heating wire mesh frame. The lifting platform is fixed to the mounting beam and connected to the heating wire mesh frame to move the heating wire mesh frame up and down between the upper and lower frames under the drive of the drive motor.
[0009] Preferably, a feeding ramp is connected to one side of the lower frame, the feeding ramp extends downward at an angle from the end away from the lower frame to the end connected to the lower frame, and side baffles are provided on both sides of the feeding ramp.
[0010] Preferably, multiple conveying rollers spaced apart from each other are arranged side by side on the feed ramp.
[0011] Preferably, a discharge conveyor belt is provided at the bottom of the lower frame, and a side baffle is provided between the lower frame and the discharge conveyor belt. The side baffle is used to enclose the three sides between the discharge conveyor belt and the lower frame.
[0012] Preferably, the discharge conveyor belt extends downward at an angle, and the direction of extension of the discharge conveyor belt is parallel to the parallel direction of the heating wires.
[0013] Preferably, there are two drive motors, which are symmetrically connected to the lifting platform via their output shafts, and the lifting platform spans both sides of the electric heating wire mesh frame.
[0014] Preferably, the material-bearing roller on the lower frame is a metal roller.
[0015] The technical effects achieved by this utility model include:
[0016] Based on the above-mentioned foam cutting equipment, the foam to be cut can be fed onto the receiving rollers of the lower frame to complete the feeding. The drive motor can drive the lifting platform to press the heating wire mesh down onto the foam surface. The parallel heating wires cut the foam into multiple small pieces. Since the distance between the heating wires is smaller than the distance between the receiving rollers, the cut foam pieces will pass through the gaps in the receiving rollers and fall below the lower frame, realizing the feeding of multiple foam pieces. The foam cutting equipment can cut a whole piece of foam into multiple small foam pieces at one time, which is convenient for crushing. Compared with existing cutting equipment and manual cutting methods, it is more efficient, and its structure is easy to build. The overall cost of the equipment is low, making it especially suitable for many small foam processing enterprises. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the foam cutting device provided in this embodiment of the utility model;
[0018] Figure 2 for Figure 1 A magnified view of the circular dashed box area A in the image;
[0019] Figure 3 This is a schematic diagram showing the state of the heating wire in the foam cutting device when cutting foam into blocks.
[0020] The reference numerals in the above figures are as follows:
[0021] Frame 1, upper frame 11, lower frame 12, material receiving roller 121, slide bar 13;
[0022] 2. Heating wire mesh frame; 21. Heating wire; 22. Slider;
[0023] 3. Slicing drive unit; 31. Mounting beam; 32. Drive motor; 33. Lifting platform;
[0024] Feed slope 4, side baffle 41, conveyor roller 42;
[0025] 5. Discharge conveyor belt 5, side baffle 51. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.
[0027] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related are omitted.
[0028] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a foam cutting device, which includes a frame 1, an electric heating wire mesh frame 2, and a cutting drive unit 3.
[0029] The frame 1 includes an upper frame 11, a lower frame 12 and slide bars 13. The four corners of the upper frame 11 are respectively connected to the four corners of the lower frame 12 by four slide bars 13. The lower frame 12 is provided with a plurality of spaced material rollers 121 arranged side by side for holding the foam to be cut.
[0030] The electric heating wire mesh frame 2 has multiple electric heating wires 21 arranged side by side and spaced apart from each other, which are used to cut the foam into multiple small pieces. The spacing between adjacent electric heating wires 21 is smaller than the spacing between adjacent material receiving rollers 121. The four corners of the electric heating wire mesh frame 2 are slidably connected to four sliding rods 13 by sliders 22.
[0031] The cutting drive unit 3 includes a mounting beam 31, a drive motor 32, and a lifting platform 33. The mounting beam 31 is fixed on the upper frame 11 to span the space above the electric heating wire mesh frame 2. The lifting platform 33 is fixed on the mounting beam 31 and connected to the electric heating wire mesh frame 2 so as to drive the electric heating wire mesh frame 2 to move up and down between the upper frame 11 and the lower frame 12 under the drive of the drive motor 32.
[0032] The working process of the foam cutting device provided in this embodiment of the utility model is as follows: After the foam to be cut is put into the receiving roller 121 of the lower frame 12, the feeding is completed. The drive motor 32 can drive the lifting platform 33 to press the electric heating wire mesh frame 2 down onto the foam surface. The parallel electric heating wires 21 are used to cut the foam into multiple small pieces. Since the distance between the electric heating wires 21 is smaller than the distance between the receiving rollers 121, the small pieces of foam after being cut will pass through the gap of the receiving rollers 121 and fall below the lower frame 12, realizing the feeding of multiple foam pieces.
[0033] Combination Figure 3 As shown in the figure, the cutting drive unit 3 is omitted to demonstrate the cutting effect of the heating wire 21 on the foam. According to the number of heating wires 21, the foam cutting device can cut a whole piece of foam into multiple small foam pieces at one time. Compared with existing cutting equipment and manual cutting methods, it is more efficient and its structure is easy to build. The overall cost of the equipment is low, making it especially suitable for many small foam processing enterprises.
[0034] The contact between the aforementioned receiving roller 121 and the foam block is a rolling friction, which allows the cut foam block to fall smoothly from the gap between the receiving roller 121.
[0035] The slide bar 13 in the frame can be a cylindrical metal rod, and the connection between the slide bar 13 and the frame can be welding or bolting. The heating wire 21 can be a nickel-chromium alloy wire or an iron-chromium-aluminum alloy wire, and the spacing of the heating wire 21 can be adjusted according to the thickness of the foam and the cutting requirements. The slider 22 can be a linear bushing to ensure smooth sliding on the slide bar 13. The drive motor 32 can be a servo motor or a stepper motor, and is connected to the lifting platform 33 through a coupling or belt drive.
[0036] One side of the lower frame 12 is connected to a feeding ramp 4. The feeding ramp 4 extends downwards at an angle from its end away from the lower frame 12 to the end that connects with the lower frame 12. Side baffles 41 are provided on both sides of the feeding ramp 4. The feeding ramp 4 facilitates safer and more convenient feeding of the foam to be cut onto the receiving roller 121 by the operator. The side baffles 41 prevent the foam from deviating from the conveying path during sliding, ensuring that the raw material accurately enters the cutting station. To prevent the foam from being pushed out, a baffle is provided on the side of the lower frame 12 away from the feeding ramp 4.
[0037] To facilitate smoother relative movement between the foam and the feed ramp 4, multiple spaced-apart conveyor rollers 42 are arranged side-by-side on the feed ramp 4.
[0038] The bottom of the lower frame 12 is provided with a discharge conveyor belt 5, which is driven by a motor and can automatically guide the falling foam blocks out. The operator only needs to wait at the end of the discharge conveyor belt 5 to collect the cut foam blocks. A side baffle 51 is provided between the lower frame 12 and the discharge conveyor belt 5. The side baffle 51 is used to enclose the three side gaps between the discharge conveyor belt 5 and the lower frame 12.
[0039] Specifically, the discharge conveyor belt 5 can adopt a belt-type or roller-type conveyor structure, and its width matches the width of the lower frame. The side baffle 51 can be made of metal plate or engineering plastic plate, and is installed on the side of the lower frame 12 by bolt fixing or snap connection. A rubber sealing strip can be set at the joint between the side baffle 51 and the lower frame 12 to prevent debris leakage. The drive motor of the discharge conveyor belt 5 can be a variable frequency speed control motor, which facilitates the adjustment of the discharge rate according to the foam cutting speed.
[0040] Specifically, the discharge conveyor belt 5 extends downwards at an angle, and its extension direction is parallel to the parallel direction of the heating wires 21. By setting the discharge conveyor belt 5 to an inclined structure and aligning it with the arrangement direction of the heating wires 21, the cut foam blocks can automatically slide down and be conveyed by gravity, achieving continuous discharge without additional power. The parallel arrangement of the conveyor belt and the heating wires 21 ensures that the cut foam blocks fall accurately onto the conveyor belt, avoiding deviation or accumulation.
[0041] There are two drive motors 32, which are symmetrically connected to the lifting platform 33 through their output shafts. The lifting platform 33 spans both sides of the electric heating wire mesh frame 2.
[0042] Specifically, two drive motors 32 are located at opposite ends of the lifting platform, achieving symmetrical drive through synchronous control. In a preferred embodiment, the drive motors 32 can be servo motors or stepper motors, with their output shafts connected to the transmission mechanism of the lifting platform 33 via couplings. This dual-motor symmetrical drive design effectively improves the lifting stability of the heating wire mesh frame 2.
[0043] Since the heating wire 21 will descend to contact the material receiving roller 121, in order to improve the service life of the material receiving roller 121, the material receiving roller 121 on the lower frame 12 is a metal roller.
[0044] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0045] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A foam cutting device, characterized in that, include: The frame (1) includes an upper frame (11), a lower frame (12) and slide bars (13). The four corners of the upper frame (11) are respectively connected to the four corners of the lower frame (12) by four slide bars (13). The lower frame (12) has multiple spaced material rollers (121) arranged side by side for holding the foam to be cut. The electric heating wire mesh frame (2) has multiple electric heating wires (21) arranged side by side on the electric heating wire mesh frame (2) to cut the foam into corresponding small pieces. The spacing between adjacent electric heating wires (21) is smaller than the spacing between adjacent material receiving rollers (121). The four corners of the electric heating wire mesh frame (2) are slidably connected to four sliding rods (13) by sliders (22). The cutting drive unit (3) includes a mounting beam (31), a drive motor (32), and a lifting platform (33). The mounting beam (31) is fixed on the upper frame (11) to span the space above the electric heating wire mesh frame (2). The lifting platform (33) is fixed on the mounting beam (31) and connected to the electric heating wire mesh frame (2) to drive the electric heating wire mesh frame (2) to move up and down between the upper frame (11) and the lower frame (12) under the drive of the drive motor (32).
2. The foam cutting device according to claim 1, characterized in that, The lower frame (12) has a feeding ramp (4) connected to one side. The feeding ramp (4) extends downward from the end away from the lower frame (12) to the end connected to the lower frame (12). Side baffles (41) are provided on both sides of the feeding ramp (4).
3. The foam cutting device according to claim 2, characterized in that, Multiple conveyor rollers (42) are arranged side by side on the feed ramp (4) with spacing between them.
4. The foam cutting device according to claim 1, characterized in that, The bottom of the lower frame (12) is provided with a discharge conveyor belt (5), and a side baffle (51) is provided between the lower frame (12) and the discharge conveyor belt (5). The side baffle (51) is used to enclose the three side gaps between the discharge conveyor belt (5) and the lower frame (12).
5. The foam cutting device according to claim 4, characterized in that, The discharge conveyor belt (5) extends downward at an angle, and the direction of the discharge conveyor belt (5) is parallel to the parallel direction of the heating wire (21).
6. The foam cutting device according to claim 1, characterized in that, There are two drive motors (32), which are symmetrically connected to the lifting platform (33) through their output shafts. The lifting platform (33) spans across both sides of the electric heating wire mesh frame (2).
7. The foam cutting device according to claim 1, characterized in that, The material-bearing roller (121) on the lower frame (12) is a metal roller.