Cutting device used after temperature-resistant EVA hot melt adhesive forming

Abstract

The invention provides a temperature-resistant EVA hot melt adhesive formed cutting device which comprises a cutting machine table, a cutting machine is installed on the surface of the cutting machine table, the surface of the cutting machine is covered with a cutting cover, a lifting table plate is further arranged on the cutting machine table, adjusting screw rods are arranged at the two ends of the lifting table plate respectively, and the adjusting screw rods are arranged on the cutting machine table. The surface of the adjusting screw rod is sleeved with a screw shaft column, the surface of the screw shaft column is rotationally connected with positioning column bases, the positioning column bases are installed on the two sides of the cutting machine table, and one end of each positioning column base is fixedly connected with a worm wheel. According to the EVA hot melt adhesive cutting device, the one-way limiting direction fixing plate is arranged on the surface of the cutting machine table, the direction fixing plate has the effect of limiting an EVA hot melt adhesive formed adhesive stick, the situation that cutting is inaccurate due to the fact that the adhesive stick retracts inwards in the cutting process is prevented, the direction fixing plate is overturned and supported on the surface of the adhesive stick, the surface of the adhesive stick is limited, and the cutting precision is improved. And the glue stick is prevented from moving inwards.

Description

Technical Field

[0001] The invention belongs to the field of EVA hot melt adhesive processing, in particular to a cutting device for temperature-resistant EVA hot melt adhesive after molding. Background Art

[0002] EVA hot melt adhesive is a solvent-free, moisture-free, 100% solid fusible polymer. EVA hot melt adhesive has great cohesion and low molten surface tension. It has hot adhesive adhesion to almost all substances and has excellent drug resistance, thermal stability, weather resistance and electrical properties. It has the characteristics of rapid bonding, wide application, non-toxicity and pollution-free, and is known as "green adhesive". It has attracted more and more attention and is widely used in foamed shoe materials, functional shed films, packaging films, hot melt adhesives, wires and cables, and toys. As an auxiliary material for bonding, hot melt adhesive is usually processed into various shapes before molding to match use in different environments. Hot melt glue sticks are one of the hot melt adhesive molding methods.

[0003] Hot melt glue stick is a solid adhesive made of ethylene-vinyl acetate copolymer (EVA) as the main material, with tackifier and other ingredients. It has the advantages of fast bonding, high strength, aging resistance, non-toxicity, and good thermal stability. It can be used to bond solids such as wood, plastic, fiber, fabric, metal, furniture, lampshade, leather, handicrafts, electronic toys, electrical components, paper products, ceramics, pearl cotton packaging, etc. It can be widely used in factories and homes.

[0004] In the production of hot melt glue sticks, a hot melt glue stick extruder is used. The raw materials are first processed preliminarily, and the hot melt glue sticks extruded by the extruder need to be cut. Currently, the glue stick cutting machines on the market usually only have a cutting mechanism. Since the glue stick has a certain elasticity and the hot melt glue is mainly composed of thermoplastic resin or thermoplastic elastomer, the cutter will lock the glue stick backward for a distance during the process of cutting the glue stick due to its elasticity, resulting in a poor cutting effect, which affects the production quality of the hot melt glue stick.

[0005] In summary, the present invention provides a cutting device after temperature-resistant EVA hot melt adhesive molding to solve the above problems. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a cutting device for temperature-resistant EVA hot melt adhesive after molding, so as to solve the problem in the prior art that the glue stick will be locked backward for a distance, resulting in poor cutting effect and affecting the production quality of the hot melt glue stick.

[0007] A device for cutting heat-resistant EVA hot-melt adhesive after molding, comprising a cutting machine table, a cutting machine installed on the surface of the cutting machine table, a cutting cover covering the surface of the cutting machine, a lifting platform plate provided on the cutting machine table, adjusting screws provided at both ends of the lifting platform plate, a screw shaft column sleeved on the surface of the adjusting screw, a positioning column seat rotatably connected to the surface of the screw shaft column, the positioning column seat installed on both sides of the cutting machine table, a worm gear fixedly connected to one end of the positioning column seat, a worm shaft meshingly connected to one side of the worm gear, a plurality of flip seats installed at the bottom of the lifting platform plate, a fixed plate rotatably connected to each flip seat, the fixed plate and the flip seat are connected by a tension spring.

[0008] Furthermore, one end of the adjusting screw is vertically welded to the lifting platform, and the other end is movably inserted into the screw shaft column. The screw shaft column is threadedly connected to the adjusting screw. One end of the screw shaft column movably passes through the positioning column seat and is fixedly connected to the worm gear.

[0009] Furthermore, both ends of the screw shaft column movably penetrate the positioning column seat and are rotationally connected to the positioning column seat via bearings.

[0010] Furthermore, one end of the worm shaft is inserted into the bottom of the cutting machine table and is rotatably connected to the cutting machine table. The other end of the worm shaft is arranged on one side of the worm wheel and contacts the side wall of the worm wheel. The end of the worm shaft that is not inserted into the cutting machine table is fixedly connected with a handle, and the two worm shafts are fixedly connected to the inside of the cutting machine table.

[0011] Furthermore, the fixed plate includes a locking end and a thrust end, the locking end is arranged at an angle, one side of the locking end close to the cutting machine table is a concave arc surface, and the other end is a convex arc surface, the thrust end is arranged at the top of the locking end, and the tension spring is fixedly connected to the surface of the thrust end.

[0012] Furthermore, the flip seat includes a straight surface portion and a flip cavity, the straight surface portion is a planar structure and is close to the thrust end, and one end of the tension spring is fixedly connected to the surface of the straight surface portion.

[0013] Furthermore, the flip cavity is arranged at the bottom of the flip seat and is connected to the locking end through a flip plate, one end of the flip plate is fixedly connected to the convex end of the locking end, and the other end of the flip plate is rotatably connected in the flip cavity.

[0014] Furthermore, a plurality of glue stick grooves are provided on the surface of the cutting machine table, and the glue stick grooves are respectively arranged in one-to-one correspondence with the fixed plates, and a material discharge slope is provided on the surface of the cutting machine table.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention sets a one-way limiting fixed plate on the surface of the cutting machine. The fixed plate has the function of limiting the glue stick after the EVA hot melt adhesive is formed, so as to prevent the glue stick from retracting inward during cutting, resulting in inaccurate cutting. The fixed plate is flipped and supported on the surface of the glue stick to limit the surface of the glue stick and prevent the glue stick from moving inward.

[0017] 2. The present invention arranges liftable adjusting screws on both sides of the cutting machine table, and uses a screw shaft column to control the height of the adjusting screw, thereby adjusting the horizontal height of the fixing plate, so that the fixing plate can be adjusted according to the cutting of glue sticks of different sizes. When cutting, it is more closely matched to the surface of the glue stick, and the limitation of the glue stick is more consistent. The height of the screw shaft column is fixed by a positioning column seat, so that it can only rotate on its own and does not affect the lifting and lowering of the adjusting screw.

[0018] 3. The present invention sets connected worm shafts. By adjusting the worm shaft at either end, two adjusting screws can be controlled to lift and lower at the same time, so that the lifting heights and lifting frequencies at both ends of the lifting platform are the same, and thus the supporting heights of each fixed plate are also the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereogram of the present invention;

[0020] Figure 2 It is a three-dimensional diagram of the lifting platform of the present invention;

[0021] Figure 3 is a three-dimensional diagram of the fixed plate of the present invention;

[0022] Figure 4 is a stereogram of the adjusting screw of the present invention;

[0023] Figure 5 It is a disassembled view of the adjusting screw and the positioning column seat of the present invention.

[0024] In the figure:

[0025] 1. Cutting machine table; 2. Lifting table; 3. Adjusting screw; 4. Positioning column seat; 5. Worm shaft; 6. Glue stick groove; 7. Fixed plate; 701. Locking end; 702. Thrust end; 8. Tension spring; 9. Flip seat; 901. Straight surface; 902. Flip cavity; 10. Flip plate; 11. Turning handle; 12. Screw shaft column; 13. Worm gear; 14. Unloading slope. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] like Figure 1-5As shown, the present invention provides a cutting device after temperature-resistant EVA hot-melt adhesive molding, including a cutting machine table 1, a cutting machine is installed on the surface of the cutting machine table 1, the surface of the cutting machine is covered with a cutting cover, a lifting platform 2 is also provided on the cutting machine table 1, and adjusting screws 3 are respectively provided at both ends of the lifting platform 2, and a screw shaft column 12 is sleeved on the surface of the adjusting screw 3, and a positioning column seat 4 is rotatably connected to the surface of the screw shaft column 12, and the positioning column seat 4 is installed on both sides of the cutting machine table 1, one end of the positioning column seat 4 is fixedly connected to a worm gear 13, and one side of the worm gear 13 is meshingly connected to a worm shaft 5, and a plurality of flip seats 9 are installed at the bottom of the lifting platform 2, and the flip seats 9 are all rotatably connected to fixed plates 7, and the fixed plates 7 and the flip seats 9 are connected by tension springs 8.

[0028] As an embodiment of the present invention, one end of the adjusting screw 3 is vertically welded to the lifting platform 2, and the other end is movably inserted into the screw shaft column 12. The screw shaft column 12 is threadedly connected to the adjusting screw 3. One end of the screw shaft column 12 movably passes through the positioning column seat 4 and is fixedly connected to the worm gear 13.

[0029] As an embodiment of the present invention, both ends of the screw shaft column 12 movably penetrate the positioning column seat 4 and are rotatably connected to the positioning column seat 4 via bearings.

[0030] As an embodiment of the present invention, one end of the worm shaft 5 is inserted into the bottom of the cutting machine table 1 and is rotatably connected to the cutting machine table 1. The other end of the worm shaft 5 is arranged on one side of the worm wheel 13 and contacts the side wall of the worm wheel 13. The end of the worm shaft 5 that is not inserted into the cutting machine table 1 is fixedly connected with a turning handle 11, and the two worm shafts 5 are fixedly connected to the cutting machine table 1.

[0031] As an embodiment of the present invention, the fixed plate 7 includes a locking end 701 and a thrust end 702. The locking end 701 is tilted, and one side of the locking end 701 close to the cutting machine table 1 is a concave arc surface, and the other end is a convex arc surface. The thrust end 702 is arranged at the top of the locking end 701, and the tension spring 8 is fixedly connected to the surface of the thrust end 702.

[0032] As an embodiment of the present invention, the flip seat 9 includes a straight surface portion 901 and a flip cavity 902 . The straight surface portion 901 is a planar structure and is close to the thrust end 702 . One end of the tension spring 8 is fixedly connected to the surface of the straight surface portion 901 .

[0033] As an embodiment of the present invention, the flip cavity 902 is arranged at the bottom of the flip seat 9 and is connected to the locking end 701 through a flip plate 10. One end of the flip plate 10 is fixedly connected to the convex end of the locking end 701, and the other end of the flip plate 10 is rotatably connected in the flip cavity 902.

[0034] As an embodiment of the present invention, a plurality of glue stick grooves 6 are provided on the surface of the cutting machine 1 , and the glue stick grooves 6 are respectively arranged in one-to-one correspondence with the fixing plates 7 , and a material discharge slope 14 is provided on the surface of the cutting machine 1 .

[0035] Specific working principle:

[0036] When the surface of the cutting machine 1 is cut, the glue sticks are discharged according to each glue stick slot 6;

[0037] After the glue stick is discharged, it moves at the bottom of the fixed plate 7 and moves toward one end close to the material discharge slope 14. Therefore, when cutting, the fixed plate 7 contacts the surface of the moving glue stick, so that the glue stick can only move toward one end of the material discharge slope 14. If it moves in the opposite direction, it will be limited by the fixed plate 7, which makes it more stable when cutting.

[0038] When adjusting the height of the lifting platform 2, the handle 11 at either end is turned, and the handle 11 drives the worm shaft 5 to rotate, and then the worm shaft 5 drives the worm wheel 13 to rotate, and then the screw shaft column 12 rotates in the positioning column seat 4, and the adjustment screw 3 rises and falls along the screw shaft column 12.

[0039] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A device for cutting heat-resistant EVA hot-melt adhesive after molding, comprising a cutting machine table (1), a cutting machine installed on the surface of the cutting machine table (1), and a cutting cover covering the surface of the cutting machine, characterized in that: The cutting machine platform (1) is also provided with a lifting platform (2), and the two ends of the lifting platform (2) are respectively provided with adjusting screws (3), and the surface of the adjusting screw (3) is sleeved with a screw shaft column (12), and the surface of the screw shaft column (12) is rotatably connected with a positioning column seat (4), and the positioning column seat (4) is installed on both sides of the cutting machine platform (1), and one end of the positioning column seat (4) is fixedly connected with a worm gear (13), and one side of the worm gear (13) is meshingly connected with a worm shaft (5), and a plurality of flip seats (9) are installed at the bottom of the lifting platform (2), and the flip seats (9) are all rotatably connected with a fixed plate (7), and the fixed plate (7) and the flip seat (9) are connected by a tension spring (8).

2. The cutting device after the temperature-resistant EVA hot melt adhesive is formed as claimed in claim 1, characterized in that: One end of the adjusting screw rod (3) is vertically welded to the lifting platform (2), and the other end is movably inserted into the screw shaft column (12). The screw shaft column (12) is threadedly connected to the adjusting screw rod (3). One end of the screw shaft column (12) movably passes through the positioning column seat (4) and is fixedly connected to the worm gear (13).

3. The cutting device after the temperature-resistant EVA hot melt adhesive is formed as claimed in claim 1, characterized in that: Both ends of the screw shaft column (12) movably penetrate the positioning column seat (4) and are rotationally connected to the positioning column seat (4) via bearings.

4. The cutting device after the temperature-resistant EVA hot melt adhesive is formed as claimed in claim 1, characterized in that: One end of the worm shaft (5) is inserted into the bottom of the cutting machine table (1) and is rotatably connected to the cutting machine table (1); the other end of the worm shaft (5) is arranged on one side of the worm wheel (13) and contacts the side wall of the worm wheel (13); the end of the worm shaft (5) not inserted into the cutting machine table (1) is fixedly connected to a turning handle (11); and the two worm shafts (5) are fixedly connected to the inside of the cutting machine table (1).

5. The cutting device after the temperature-resistant EVA hot melt adhesive is formed as claimed in claim 1, characterized in that: The fixing plate (7) comprises a locking end (701) and a thrust end (702); the locking end (701) is arranged obliquely; one side of the locking end (701) close to the cutting machine table (1) is an inwardly concave arc surface, and the other end is an outwardly convex arc surface; the thrust end (702) is arranged on the top of the locking end (701); and the tension spring (8) is fixedly connected to the surface of the thrust end (702).

6. The cutting device after the temperature-resistant EVA hot melt adhesive is formed as claimed in claim 5, characterized in that: The flip seat (9) comprises a straight surface portion (901) and a flip cavity (902); the straight surface portion (901) is a planar structure and is close to the thrust end (702); one end of the tension spring (8) is fixedly connected to the surface of the straight surface portion (901).

7. The cutting device after the temperature-resistant EVA hot melt adhesive is formed as claimed in claim 6, characterized in that: The flip chamber (902) is arranged at the bottom of the flip seat (9) and is connected to the locking end (701) via a flip plate (10); one end of the flip plate (10) is fixedly connected to the convex end of the locking end (701), and the other end of the flip plate (10) is rotatably connected in the flip chamber (902).

8. The cutting device after the temperature-resistant EVA hot melt adhesive is formed as claimed in claim 1, characterized in that: The surface of the cutting machine table (1) is provided with a plurality of glue stick grooves (6), and the glue stick grooves (6) are respectively arranged in one-to-one correspondence with the fixed plates (7). The surface of the cutting machine table (1) is provided with a material discharge slope (14).

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