EVA foam sheet connecting device

By designing an equidistant adjustment and cutting mechanism for the EVA foam sheet connecting device, the problems of low precision and low efficiency of traditional cutting devices were solved, realizing efficient equidistant cutting and mass production of foam sheets.

CN223749802UActive Publication Date: 2026-01-02JIANGMEN WEIJIALI SHOES MATERIAL CO LTD
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Patent Information

Application Number
CN202423322510.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-02
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Traditional cutting equipment is not precise and efficient when cutting EVA foam sheets, and requires frequent equipment replacement or adjustment, making it difficult to achieve small-size equal-division cutting.

Method used

An EVA foam sheet connecting device was designed, which includes an equidistant adjustment mechanism and a cutting mechanism. The cutting wheel is driven by a servo motor to adjust and cut at equal intervals, thereby realizing equidistant cutting and simultaneous cutting of the foam sheet.

Benefits of technology

It improves the precision and efficiency of foam sheet cutting, enabling the production of multiple foam materials of the same size to be obtained at one time on the same production line, thereby increasing production efficiency.

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Abstract

The utility model discloses an EVA (Ethylene Vinyl Acetate) foam sheet connecting device, which relates to the technical field of foam cutting, and comprises a base, the top end of the base is fixedly connected with a group of symmetrical support plates, the top ends of the support plates are fixedly connected with a guide frame, the bottom end of the guide frame is provided with an equidistant adjusting mechanism, and the equidistant adjusting mechanism is fixedly connected with the base. And the bottom end of the equidistant adjusting mechanism is fixedly connected with a plurality of cutting wheels used for adjusting the distance between the cutting wheels, the top end of the base is fixedly connected with a supporting frame, and the inner side of the supporting frame is movably connected with a cutting mechanism used for cutting foam sheets. The equidistant adjusting mechanism is arranged to drive the mounting frame to move synchronously, and the sleeve is movably connected with the mounting frame, so that the cutting wheels are pushed to move horizontally along the control strip, the cutting wheels are distributed at equal intervals, equidistant adjustment can be performed according to the width of a sheet, the sheet can be cut at equal intervals, and the cutting efficiency is improved. Therefore, the foam sheet cutting efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cutting foam, and particularly relates to an EVA foam sheet connecting device. BACKGROUND

[0002] EVA foam sheet, namely, ethylene-vinyl acetate copolymer foam material, is widely used in packaging, shoe material, toys, building thermal insulation and automotive interior decoration fields due to its good buffering, shock resistance, heat insulation and sound absorption performance. In industrial production, in order to meet the needs of different application scenarios, the EVA foam sheet is usually cut and connected to obtain products with specific size and shape.

[0003] However, the traditional cutting device has low cutting precision and low efficiency when cutting the foam sheet, and the cutting equipment needs to be frequently replaced or adjusted when cutting sheets with different widths, which not only increases the operation difficulty but also reduces the production efficiency. When the foam sheet is divided into small sizes, different equipment needs to be switched, which is troublesome. Therefore, an EVA foam sheet connecting device is needed to solve the existing problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at making up for the shortage of prior art, and provides an EVA foam sheet connecting device. The equal-distance adjusting mechanism can adjust the distance according to the width of the sheet, so that the sheet can be cut at equal distances, thereby improving the cutting efficiency of the foam sheet. The cutting mechanism can obtain multiple foam materials with the same size at one time, so that the foam cutting process can be completed on the same production line, and the production and speed of the cutting sheet are improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an EVA foam sheet connecting device, comprising a base, a group of symmetrical support plates are fixedly connected to the top end of the base, and a guide frame is fixedly connected to the top end of the support plate, an equal-distance adjusting mechanism is arranged at the bottom end of the guide frame, and a plurality of cutting wheels are fixedly connected to the bottom end of the equal-distance adjusting mechanism for adjusting the distance between the cutting wheels, a support frame is fixedly connected to the top end of the base, and a cutting mechanism is movably connected to the inner side of the support frame for cutting the foam sheet.

[0006] The utility model further sets up, the equidistance adjusting mechanism includes fixed block, moving block, telescopic stand and drive rod, moving block is symmetrically arranged, the outside of drive rod is opened a group of symmetrical threads, drive rod penetrates moving block, and drive rod is connected with moving block screw, moving block is located the opposite side of fixed block, drive rod penetrates fixed block, and drive rod is connected with moving frame swing through bearing, the bottom of fixed block and the middle position pivot top of telescopic stand are fixedly connected, and the bottom of moving block is fixedly connected with the end pivot top of telescopic stand respectively.

[0007] The utility model further sets up, the fixed block is fixedly connected in the inside of guide frame, and moving block is slidably connected in the inside of guide frame, drive rod is swingly connected in the inside of guide frame through bearing, the outside of guide frame is fixedly connected with servo motor no.

[0008] The utility model further sets up, the pivot bottom of telescopic stand is fixedly connected with mounting frame, the axle center of cutting wheel is fixedly connected with sleeve, and cutting wheel is swingly connected in the bottom opposite side of mounting frame through sleeve.

[0009] The utility model further sets up, the opposite side of support board is swingly connected with control strip through bearing, control strip penetrates sleeve, and control strip is swingly connected with sleeve, the outside of base is fixedly connected with servo motor no.

[0010] The utility model further sets up, the cutting mechanism includes cutting knife, connecting block and pneumatic cylinder, both ends of cutting knife are fixedly connected with connecting block through bolt, a group of symmetrical pneumatic cylinders are fixedly connected on support frame, and the telescopic end of pneumatic cylinder is fixedly connected with the top of connecting block respectively.

[0011] The utility model further sets up, cutting knife is located in the inside of support frame, and both ends of support frame are provided with sliding slot, and connecting block is swingly penetrated sliding slot respectively.

[0012] Compared with the prior art, the EVA foam sheet connecting device has the following beneficial effects:

[0013] 1、The utility model discloses an equidistance adjusting mechanism is set up, and drive mounting frame synchronous movement, because sleeve swingly connects with mounting frame, thereby promotes cutting wheel to move horizontally along control strip, thereby makes cutting wheel equidistance distribution, can according to the width of sheet material equidistance adjustment, makes sheet material can be equidistance cut, thereby improves foam sheet cutting efficiency.

[0014] 2. The utility model discloses a cutting mechanism is set, when the strip of foam sheet material moves to the bottom of support frame, moves down along the sliding slot through the cylinder control connecting block, makes cutting knife synchronous downward movement, and this is to the strip of foam sheet material and carries out cutting simultaneously, and this obtains a plurality of size same foam material one time, makes the foam cutting procedure be completed on the same work line, improves the output and the speed of cutting sheet material. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the principle structure schematic diagram of the utility model;

[0017] Figure 3 It is the equidistance adjusting mechanism structure schematic diagram of the utility model;

[0018] Figure 4 It is the utility model Figure 2 A place of the enlarged structure schematic diagram in.

[0019] In the drawing: 1, base; 2, support plate; 3, guide frame; 4, equidistance adjusting mechanism; 401, fixed block; 402, moving block; 403, telescopic stand; 404, drive rod; 5, cutting wheel; 6, support frame; 7, cutting mechanism; 701, cutting knife; 702, connecting block; 703, cylinder; 8, servo motor one; 9, mounting bracket; 10, sleeve; 11, control bar; 12, servo motor two; 13, sliding slot. DETAILED DESCRIPTION

[0020] The technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings in the utility model embodiment.

[0021] As Figures 1-4 The utility model provides a kind of technical scheme: a kind of EVA foam sheet connecting device, including base 1, the top of base 1 is fixedly connected with a group of symmetrical support plate 2, and the top of support plate 2 is fixedly connected with guide frame 3, and the bottom of guide frame 3 is provided with equidistance adjusting mechanism 4, and the bottom of equidistance adjusting mechanism 4 is fixedly connected with several cutting wheels 5, for the adjustment of distance between cutting wheel 5, the top of base 1 is fixedly connected with support frame 6, and support frame 6 is movably connected with cutting mechanism 7 in inside, for the cutting of foam sheet.

[0022] As Figure 1 , Figure 3 and Figure 4As shown, the equidistant adjusting mechanism 4 comprises a fixed block 401, a moving block 402, an extension frame 403 and a driving rod 404, the moving blocks 402 are symmetrically arranged, a group of symmetric threads are formed on the outer side of the driving rod 404, the driving rod 404 penetrates through the moving blocks 402 and is threadedly connected with the moving blocks 402, the moving blocks 402 are located at the opposite sides of the fixed block 401, the driving rod 404 penetrates through the fixed block 401 and is movably connected with the moving frame through a bearing, the bottom end of the fixed block 401 is fixedly connected with the middle position pivot top end of the extension frame 403, and the bottom ends of the moving blocks 402 are respectively fixedly connected with the end pivot top ends of the extension frame 403, the fixed block 401 is fixedly connected with the inner side of the guide frame 3, the moving blocks 402 are slidably connected with the inner side of the guide frame 3, the driving rod 404 is movably connected with the inner side of the guide frame 3 through a bearing, the outer side of the guide frame 3 is fixedly connected with a servo motor one 8, and the output end of the servo motor one 8 is fixedly connected with the end of the driving rod 404, the pivot bottom ends of the extension frame 403 are all fixedly connected with mounting frames 9, the shaft centers of the cutting wheels 5 are all fixedly connected with sleeves 10, and the cutting wheels 5 are movably connected with the bottom end opposite sides of the mounting frames 9 through the sleeves 10.

[0023] The servo motor one 8 is started to drive the driving rod 404 to rotate at the inner side of the guide frame 3, since the driving rod 404 is threadedly connected with the moving blocks 402, the guide frame 3 limits the moving direction of the driving rod 404, thereby controlling the moving blocks 402 to move close to each other or away from each other, when the moving blocks 402 move away from each other, the two ends of the extension frame 403 are pulled to move away from each other in opposite directions, so that the extension frame 403 is unfolded along the length direction of the guide frame 3, since the pivot position of the middle position of the extension frame 403 is fixed, the extension frame 403 is unfolded from the middle position pivot to the two ends, thereby driving the mounting frames 9 to move synchronously, since the sleeves 10 are movably connected with the mounting frames 9, the cutting wheels 5 are pushed to move horizontally along the control strips 11, thereby making the cutting wheels 5 equidistantly distributed, the equidistant adjustment can be made according to the width of the sheet material, so that the sheet material can be equidistantly cut, thereby improving the cutting efficiency of the foam sheet material.

[0024] As shown in Figure 1 and Figure 2 , the opposite sides of the support plate 2 are movably connected with control strips 11 through bearings, the control strips 11 penetrate through the sleeves 10 and are movably connected with the sleeves 10, the outer side of the base 1 is fixedly connected with a servo motor two 12, and the output end of the servo motor two 12 is fixedly connected with the end of the control strips 11, the servo motor two 12 is started to drive the control strips 11 to rotate, thereby driving all the cutting wheels 5 to rotate synchronously, so that the sheet material is simultaneously cut along the length direction, thereby being divided into strips with equal width.

[0025] As shown in Figure 1 and Figure 2As shown, the cutting mechanism 7 includes a cutting knife 701, a connecting block 702 and a cylinder 703, both ends of the cutting knife 701 are fixedly connected with the connecting block 702 through bolts, a group of symmetrical cylinders 703 are fixedly connected on the support frame 6, and the telescopic ends of the cylinders 703 are fixedly connected with the top ends of the connecting blocks 702 respectively, the cutting knife 701 is located at the inner side of the support frame 6, and both ends of the support frame 6 are provided with sliding grooves 13, and the connecting blocks 702 respectively movably penetrate through the sliding grooves 13.

[0026] When the strip-shaped foam sheet moves to the bottom of the support frame 6, the connecting blocks 702 are controlled to move downward along the sliding grooves 13 by the cylinders 703, so that the cutting knife 701 moves downward synchronously, so as to simultaneously cut the strip-shaped foam sheet, so as to obtain a plurality of foam materials with the same size at one time, so that the foam cutting process is completed on the same production line, and the production and speed of the cutting sheet are improved.

[0027] Working principle: when in use, the sheet is transported by the conveying mechanism, and the sheet is controlled to pass through the cutting wheel 5 and the cutting knife 701 in turn, and the cutting wheel 5 cuts the sheet at equal intervals along the length direction of the sheet, and then the cutting knife 701 cuts the sheet along the width direction of the sheet; the specific operation is that the servo motor one 8 is started to drive the driving rod 404 to rotate at the inner side of the guide frame 3, since the driving rod 404 is threadedly connected with the moving block 402, the guide frame 3 limits the movement direction of the driving rod 404, so as to control the moving blocks 402 to move away from each other or move close to each other, when the moving blocks 402 move away from each other, the two ends of the telescopic frame 403 move away from each other in opposite directions respectively, so that the telescopic frame 403 expands along the length direction of the guide frame 3, since the pivot position at the middle position of the telescopic frame 403 is fixed, so that the telescopic frame 403 expands to both ends with the pivot at the middle position as the center, driving the mounting frame 9 to move synchronously, since the sleeve 10 is movably connected with the mounting frame 9, so as to push the cutting wheel 5 to move horizontally along the control bar 11, so that the cutting wheels 5 are distributed at equal intervals, then the servo motor two 12 is started to drive the control bar 11 to rotate, so as to drive all the cutting wheels 5 to rotate synchronously, so as to cut the sheet along the length direction at the same time, so as to divide the sheet into strips with equal width; then the strip-shaped foam sheet moves to the bottom of the support frame 6, the connecting blocks 702 are controlled to move downward along the sliding grooves 13 by the cylinders 703, so that the cutting knife 701 moves downward synchronously, so as to simultaneously cut the strip-shaped foam sheet, so as to obtain a plurality of foam materials with the same size at one time.

[0028] In the description of the present specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An EVA foam sheet connecting device comprising a base (1), characterized in that: The top end of the base (1) is fixedly connected with a group of symmetrical support plates (2), and the top end of the support plate (2) is fixedly connected with a guide frame (3), the bottom end of the guide frame (3) is provided with an equidistant adjusting mechanism (4), and the bottom end of the equidistant adjusting mechanism (4) is fixedly connected with a plurality of cutting wheels (5) for adjusting the distance between the cutting wheels (5), the top end of the base (1) is fixedly connected with a support frame (6), and the inner side of the support frame (6) is movably connected with a cutting mechanism (7) for cutting the foam sheet.

2. An EVA foam sheet connecting device according to claim 1, characterized in that: The equidistant adjusting mechanism (4) comprises a fixed block (401), a moving block (402), a telescopic frame (403) and a drive rod (404), the moving block (402) is symmetrically arranged, a group of symmetrical threads are formed on the outer side of the drive rod (404), the drive rod (404) penetrates the moving block (402), and the drive rod (404) is threadedly connected with the moving block (402), the moving block (402) is located on the opposite side of the fixed block (401), the drive rod (404) penetrates the fixed block (401), and the drive rod (404) is movably connected with the moving frame through a bearing, the bottom end of the fixed block (401) is fixedly connected with the middle position of the telescopic frame (403), and the bottom end of the moving block (402) is respectively fixedly connected with the end shaft top end of the telescopic frame (403).

3. An EVA foam sheet connecting device according to claim 2, wherein: The fixed block (401) is fixedly connected to the inner side of the guide frame (3), and the moving block (402) is slidably connected to the inner side of the guide frame (3), the drive rod (404) is movably connected to the inner side of the guide frame (3) through a bearing, the outer side of the guide frame (3) is fixedly connected with a servo motor (8), and the output end of the servo motor (8) is fixedly connected with the end of the drive rod (404).

4. The EVA foam sheet connecting device according to claim 2, wherein: The shaft bottom end of the telescopic frame (403) is fixedly connected with a mounting frame (9), the shaft center of the cutting wheel (5) is fixedly connected with a sleeve (10), and the cutting wheel (5) is movably connected to the bottom end of the opposite side of the mounting frame (9) through the sleeve (10).

5. The EVA foam sheet connecting device according to claim 1, wherein: The opposite sides of the support plate (2) are movably connected with a control strip (11) through a bearing, the control strip (11) penetrates the sleeve (10), and the control strip (11) is movably connected with the sleeve (10), the outer side of the base (1) is fixedly connected with a servo motor (12), and the output end of the servo motor (12) is fixedly connected with the end of the control strip (11).

6. The EVA foam sheet connecting device according to claim 1, wherein: The cutting mechanism (7) comprises a cutting knife (701), a connecting block (702) and a pneumatic cylinder (703), both ends of the cutting knife (701) are fixedly connected with the connecting block (702) through bolts, a group of symmetrical pneumatic cylinders (703) are fixedly connected on the support frame (6), and the telescopic ends of the pneumatic cylinders (703) are respectively fixedly connected with the top end of the connecting block (702).

7. An EVA foam sheet connecting device according to claim 6, wherein: The cutting knife (701) is located on the inner side of the support frame (6), both ends of the support frame (6) are provided with a sliding groove (13), and the connecting block (702) is movably penetrated through the sliding groove (13).