Dimension-adjustable automatic precise foaming sponge cutting machine

Abstract

The utility model relates to the technical field of sponge processing, and discloses a size-adjustable automatic precise foam sponge cutting machine which comprises a cutting table, the upper surface of the cutting table is fixedly connected with a fixing frame, one side of the fixing frame is fixedly provided with a first stepping motor, the output end of the first stepping motor is fixedly connected with a first lead screw, and the output end of the first lead screw is fixedly connected with a second lead screw. The outer portion of the first lead screw is in threaded connection with an adjusting block, the adjusting block is slidably connected into the fixing frame, the lower surface of the adjusting block is fixedly connected with a mounting shell and a displacement sensor, the displacement sensor is arranged on one side of the mounting shell, and a first stepping motor is fixedly mounted on one side of the mounting shell. The displacement sensor is matched with the adjusting block to drive the cutting knife to automatically adjust the position along the preset size, so that the sponge cutting size is convenient to adjust; and the insertion block is separated from the through hole and the insertion hole through the inclined panel separation structure, so that tool-free quick disassembly and assembly are realized, the maintenance time is remarkably shortened, and the operation risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sponge processing technology, and in particular to an automatic precision cutting machine for size-adjustable foamed sponges. Background Technology

[0002] Foamed sponge is a porous material formed by introducing gas into a polymer matrix through physical or chemical methods, creating a large number of tiny bubbles. These bubbles are evenly distributed inside the material, giving the sponge unique properties such as lightness, softness, good elasticity, sound absorption, heat insulation, and shock absorption. It is widely used in many fields such as industry, home furnishing, and medical care. When large pieces of foamed sponge are manufactured, they are large blocks of sponge, so they must be cut into manageable sizes.

[0003] A search revealed that Chinese patent CN218699177U discloses a sponge cutting machine. Existing sponge cutting methods typically involve manual operation to limit and compress the sponge to prevent movement during cutting, before the sponge is cut to the desired size. Manually compressing and limiting the sponge before cutting is dangerous and inconvenient. Therefore, the operator, based on the size of the sponge, uses a sliding adjustment block to move a cylinder (or similar unit) and secures it with a locking screw. The cylinder (or similar unit) then uses a limiting plate to limit the sponge, and the cylinder (or similar unit) uses a pressing plate to press the sponge firmly. The cutting mechanism then cuts the sponge, and the conveying mechanism transports the sponge, completing the automated cutting process.

[0004] Although the aforementioned cutting machine utilizes a blade to easily adjust the cutting position before cutting the sponge, if the cutting blade becomes uneven due to prolonged use, such as curling or minor damage at the edge, it can easily cause uneven cutting of subsequent sponge pieces, reducing quality and producing shavings during cutting. Existing technologies typically use screws or bolts and nuts to install the cutting blade, requiring a screwdriver and other tools for disassembly and replacement. Since the cutting blade is quite sharp, this tedious and time-consuming disassembly process increases the risk of operator injury and can disrupt work progress, hindering convenient blade replacement. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic precision cutting machine for size-adjustable foamed sponges.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic precision cutting machine for adjustable-size foam sponge, comprising a cutting table, a fixed frame fixedly connected to the upper surface of the cutting table, a first stepper motor fixedly installed on one side of the fixed frame, a first lead screw fixedly connected to the output end of the first stepper motor, an adjusting block threadedly connected to the external thread of the first lead screw, the adjusting block slidably connected inside the fixed frame, a mounting shell and a displacement sensor fixedly connected to the lower surface of the adjusting block, the displacement sensor being disposed on one side of the mounting shell, a first stepper motor fixedly installed on one side of the mounting shell, a second lead screw fixedly connected to the output end of the first stepper motor, a moving block threadedly connected to the external thread of the second lead screw, the moving block slidably connected to the inner wall of the mounting shell, a cutting blade disposed inside the moving block, and a replacement component disposed inside the moving block.

[0007] As a further description of the above technical solution:

[0008] The replacement component includes a tool slot, which is formed on the lower surface of the moving block. Silicone pads are provided on both sides of the tool slot. An installation groove is formed inside the moving block. A second stepper motor is fixedly installed on one side of the moving block. A bidirectional stud is fixedly connected to the output end of the second stepper motor. The bidirectional stud is rotatably connected inside the installation groove.

[0009] As a further description of the above technical solution:

[0010] The external thread of the bidirectional stud has two connecting blocks, which are slidably connected inside the mounting groove. A slanted plate is fixedly connected to one side of each connecting block. Two inserts are fixedly connected to one side of one of the slanted plates, and two insertion holes are opened inside the other slanted plate. The cutting blade has two through holes and a gripping groove inside, with the gripping groove located below the two through holes.

[0011] As a further description of the above technical solution:

[0012] A limit adjustment assembly is provided above the cutting table. The limit adjustment assembly includes multiple limit rods, which are respectively arranged on both sides above the cutting table. A second stepper motor is fixedly installed on one side of the cutting table, and a bidirectional screw is fixedly connected to the output end of the second stepper motor.

[0013] As a further description of the above technical solution:

[0014] The external threaded connection of the bidirectional screw has two connecting brackets. A limiting groove is opened on one side of the cutting table. The two connecting brackets are slidably connected inside the limiting groove. The two connecting brackets are respectively fixedly connected to one end of two limiting rods.

[0015] As a further description of the above technical solution:

[0016] In addition, the lower surfaces of the various limiting rods are all fixedly connected with splicing rods, and the splicing rods have positioning holes inside.

[0017] As a further description of the above technical solution:

[0018] The upper surface of the limiting rod is provided with a splicing groove, and the inside of the limiting rod is provided with an inner groove. A positioning rod is slidably connected inside the inner groove. A circular plate is fixedly connected to the middle of the positioning rod, and a spring is fixedly connected to one side of the circular plate. The spring is fixedly connected to the inner wall of the inner groove.

[0019] This utility model has the following beneficial effects:

[0020] 1. This utility model, through the setting of replacement components, utilizes displacement sensors to identify the foam sponge during cutting. The first lead screw indirectly drives the cutting blade to adjust its position through the adjusting block, thus facilitating the cutting of the foam sponge according to the required cutting size. The separation of the two inclined panels facilitates the disengagement of the insert block from the through hole and the insertion hole, thereby releasing the limiting position of the cutting blade. Disassembly is completed when the cutting blade is removed from the blade holder. This facilitates replacement when the cutting blade is damaged. The disassembly and assembly process does not require screwdrivers or other tools, saving disassembly and assembly time, reducing disassembly and assembly steps, and thus reducing the risk of operators being cut by the cutting blade during disassembly and assembly.

[0021] 2. By setting up a limiting adjustment component, this utility model not only uses the limiting rods on both sides to limit the sponge on both sides, but also facilitates the layer-by-layer splicing or disassembly of the limiting rods through the connection of the splicing rod and the splicing groove. This helps to adapt to sponges that are cut to different heights, and thus makes corresponding height adjustments to the limiting height. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the fixing frame structure proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the movable block structure proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the knife slot structure proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the inclined panel structure proposed in this utility model;

[0027] Figure 6 This is a schematic diagram of the through-hole structure proposed in this utility model;

[0028] Figure 7 This is a schematic diagram of the connecting frame structure proposed in this utility model;

[0029] Figure 8 This is a schematic diagram of the splicing rod structure proposed in this utility model.

[0030] Legend:

[0031] 1. Cutting table; 2. Fixing frame; 3. First stepper motor; 4. First lead screw; 5. Adjusting block; 6. Mounting housing; 7. Displacement sensor; 8. First stepper motor; 9. Second lead screw; 10. Moving block; 11. Cutting blade; 12. Blade slot; 13. Silicone pad; 14. Mounting slot; 15. Second stepper motor; 16. Bidirectional stud; 17. Connecting block; 18. Slanted panel; 19. Insertion block; 20. Insertion hole; 21. Through hole; 22. Grip slot; 23. Limiting rod; 24. Second stepper motor; 25. Connecting frame; 26. Limiting slot; 27. Bidirectional screw; 28. Assembly rod; 29. ​​Positioning hole; 30. Assembly slot; 31. Inner groove; 32. Positioning rod; 33. Circular plate; 34. Spring. Detailed Implementation

[0032] 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.

[0033] As attached Figure 1-8As shown, one embodiment of this utility model provides an automatic precision cutting machine for size-adjustable foamed sponge, including a cutting table 1. A fixed frame 2 is fixedly connected to the upper surface of the cutting table 1. A first stepper motor 3 is fixedly installed on one side of the fixed frame 2. A first lead screw 4 is fixedly connected to the output end of the first stepper motor 3. An adjusting block 5 is threadedly connected to the external end of the first lead screw 4. The adjusting block 5 is slidably connected inside the fixed frame 2. A mounting shell 6 and a displacement sensor 7 are fixedly connected to the lower surface of the adjusting block 5. The displacement sensor 7 is located on one side of the mounting shell 6 to facilitate the lateral movement of the cutting blade 11, thereby facilitating the adjustment of the sponge cutting size. A first stepper motor 8 is fixedly installed on one side of the mounting shell 6. A second lead screw 9 is fixedly connected to the output end of the first stepper motor 8. A moving block 10 is threadedly connected to the external end of the second lead screw 9. The moving block 10 is slidably connected to the inner wall of the mounting shell 6. The cutting blade 11 is provided inside the moving block 10 to facilitate cutting by the cutting blade 11. A replacement component is provided inside the moving block 10.

[0034] As attached Figure 4 As shown, the replacement component includes a blade slot 12 for initial positioning and placement of the cutting blade 11. The blade slot 12 is located on the lower surface of the moving block 10. Silicone pads 13 are provided on both sides of the blade slot 12, which can easily squeeze the cutting blade 11 through elasticity. An installation groove 14 is provided inside the moving block 10 so that when the upper surface of the cutting blade 11 abuts against the inner wall of the installation groove 14, it can position the cutting blade 11. A second stepper motor 15 is fixedly installed on one side of the moving block 10. The output end of the second stepper motor 15 is fixedly connected to a bidirectional stud 16 with opposite external threads. The bidirectional stud 16 is rotatably connected inside the installation groove 14. Two connecting blocks 17 are connected to the external threads of the bidirectional stud 16. The two connecting blocks 17 are slidably connected inside the installation groove 14, so that they can move closer or further apart under the action of the bidirectional stud 16.

[0035] As attached Figure 5 As shown, a slanted panel 18 is fixedly connected to one side of the connecting block 17, which helps to fit with the slanted surface of the cutting blade 11. Two inserts 19 are fixedly connected to one side of one of the slanted panels 18, and two insertion holes 20 are opened inside the other slanted panel 18, so that when the inserts 19 are inserted into the insertion holes 20 through the through holes 21, the cutting blade 11 is limited.

[0036] As attached Figure 6 As shown, the inside of the cutting blade 11 has two through holes 21 and a gripping groove 22. The gripping groove 22 is located below the two through holes 21. The through holes 21 are used for the insertion of the insert block 19, and the gripping groove 22 makes it easy for the cutting blade 11 to be held manually.

[0037] As attached Figure 1As shown, a limit adjustment assembly is provided above the cutting table 1. The limit adjustment assembly includes multiple limit rods 23, which are respectively arranged on both sides above the cutting table 1. A second stepper motor 24 is fixedly installed on one side of the cutting table 1. A bidirectional screw 27 is fixedly connected to the output end of the second stepper motor 24. The external threads of the bidirectional screw 27 are set in opposite directions. Two connecting brackets 25 are connected to the external threads of the bidirectional screw 27. The two connecting brackets 25 are respectively fixedly connected to one end of two of the limit rods 23, which drive the limit rods 23 to move. A limit groove 26 is opened on one side of the cutting table 1. The two connecting brackets 25 are slidably connected inside the limit groove 26 to facilitate the limiting function of the connecting brackets 25.

[0038] As attached Figure 8 As shown, the lower surfaces of several other limiting rods 23 are fixedly connected with splicing rods 28 for splicing with the splicing groove 30 at the bottom. The splicing rods 28 have positioning holes 29 inside for inserting positioning rods 32. The upper surface of the limiting rods 23 has splicing grooves 30, and the inner groove 31 inside the limiting rods 23 is used for retracting one end of the positioning rod 32. The positioning rod 32 is slidably connected inside the inner groove 31. A circular plate 33 is fixedly connected to the middle of the positioning rod 32 to limit the positioning rod 32. A spring 34 is fixedly connected to one side of the circular plate 33. The spring 34 is fixedly connected to the inner wall of the inner groove 31 to provide elastic pushing force to the positioning rod 32.

[0039] Working principle: When in use, first place the sponge on the surface of the cutting table 1 and on one side of the cutting blade 11. When the sponge is thick, it is necessary to increase the limiting height. First, pull the positioning rod 32 so that one end retracts into the inner groove 31. Then, the added limiting rod 23 drives the splicing rod 28 to slide into the bottom splicing groove 30. Then, release the positioning rod 32. The spring 34 pushes the circular plate 33, which in turn pushes the positioning rod 32 into the corresponding positioning hole 29, thus completing the adjustment of the limiting height. Then, the controller starts the second stepper motor 24, which drives the bidirectional screw 27 to rotate. Under the action of the opposite direction threads on the outside of the bidirectional screw 27, the two external connecting brackets 25 are driven to move closer to each other, which in turn pulls the multiple limiting rods 23 on both sides closer to each other until they move to both sides of the sponge, thus limiting the sponge.

[0040] Then, according to the size of the sponge to be cut, when adjusting the position of the cutting blade 11, the first stepper motor 3 is started, and its output end drives the first lead screw 4 to rotate. When the first lead screw 4 rotates, it drives the adjusting block 5 to slide inside the fixed frame 2. Under the monitoring of the displacement sensor 7, the cutting blade 11 is adjusted to the position to be cut and then stops. The first stepper motor 8 is started, and its output end drives the second lead screw 9 to rotate. Thus, when the moving block 10 slides on the inner wall of the mounting shell 6, it drives the cutting blade 11 to cut from one side of the sponge to the other side, completing the cutting.

[0041] When the cutting blade 11 needs to be replaced due to curling, first hold the cutting blade 11 through the holding groove 22, start the second stepper motor 15, and use its output end to drive the bidirectional stud 16 to rotate. This will cause the two connecting blocks 17 to slide away from each other inside the mounting groove 14, so that the connecting blocks 17 drive the inclined plate 18 away from each other. At this time, the insert block 19 disengages from the through hole 21 and separates from the insertion hole 20, so that the cutting blade 11 is released from the limit. Then, the cutting blade 11 is taken out from between the two silicone pads 13 inside the blade holder groove 12 to complete the disassembly. The above operation is reversed during installation to complete the replacement.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic precision cutting machine for size-adjustable foam sponge, comprising a cutting table (1), characterized in that: A fixed frame (2) is fixedly connected to the upper surface of the cutting table (1). A first stepper motor (3) is fixedly installed on one side of the fixed frame (2). A first lead screw (4) is fixedly connected to the output end of the first stepper motor (3). An adjusting block (5) is threadedly connected to the external end of the first lead screw (4). The adjusting block (5) is slidably connected inside the fixed frame (2). A mounting shell (6) and a displacement sensor (7) are fixedly connected to the lower surface of the adjusting block (5). The displacement sensor (7) is located on one side of the mounting shell (6). A first stepper motor (8) is fixedly installed on one side of the mounting shell (6). A second lead screw (9) is fixedly connected to the output end of the first stepper motor (8). A moving block (10) is threadedly connected to the external end of the second lead screw (9). The moving block (10) is slidably connected to the inner wall of the mounting shell (6). A cutting blade (11) is provided inside the moving block (10). A replacement component is provided inside the moving block (10).

2. The automatic precision cutting machine for size-adjustable foam sponge according to claim 1, characterized in that: The replacement component includes a knife slot (12), which is located on the lower surface of the moving block (10). Silicone pads (13) are provided on both sides of the knife slot (12). An installation slot (14) is provided inside the moving block (10). A second stepper motor (15) is fixedly installed on one side of the moving block (10). A bidirectional stud (16) is fixedly connected to the output end of the second stepper motor (15). The bidirectional stud (16) is rotatably connected inside the installation slot (14).

3. The automatic precision cutting machine for size-adjustable foam sponge according to claim 2, characterized in that: The external thread of the bidirectional stud (16) is connected to two connecting blocks (17), which are slidably connected inside the mounting groove (14). One side of the connecting block (17) is fixedly connected to a slanted plate (18), one side of which is fixedly connected to two inserts (19), and the other slanted plate (18) has two insertion holes (20) inside. The cutter (11) has two through holes (21) and a gripping groove (22) inside, and the gripping groove (22) is located below the two through holes (21).

4. The automatic precision cutting machine for size-adjustable foam sponge according to claim 1, characterized in that: A limit adjustment assembly is provided above the cutting table (1). The limit adjustment assembly includes multiple limit rods (23). The multiple limit rods (23) are respectively arranged on both sides above the cutting table (1). A second stepper motor (24) is fixedly installed on one side of the cutting table (1). A bidirectional screw (27) is fixedly connected to the output end of the second stepper motor (24).

5. The automatic precision cutting machine for size-adjustable foam sponge according to claim 4, characterized in that: The external thread of the bidirectional screw (27) has two connecting brackets (25). A limiting groove (26) is opened on one side of the cutting table (1). The two connecting brackets (25) are slidably connected inside the limiting groove (26). The two connecting brackets (25) are respectively fixedly connected to one end of one of the two limiting rods (23).

6. The automatic precision cutting machine for size-adjustable foam sponge according to claim 4, characterized in that: In addition, the lower surfaces of the multiple limiting rods (23) are fixedly connected with splicing rods (28), and the splicing rods (28) have positioning holes (29) inside.

7. The automatic precision cutting machine for size-adjustable foam sponge according to claim 4, characterized in that: The upper surface of the limiting rod (23) is provided with a splicing groove (30), and the inside of the limiting rod (23) is provided with an inner groove (31). A positioning rod (32) is slidably connected inside the inner groove (31). A circular plate (33) is fixedly connected to the middle of the positioning rod (32), and a spring (34) is fixedly connected to one side of the circular plate (33). The spring (34) is fixedly connected to the inner wall of the inner groove (31).

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