Hot melt extrusion device for producing machine adhesive tape

Abstract

The utility model discloses a hot melt extrusion device for machine adhesive tape production in the field of hot melt extrusion devices, which comprises a workbench, an extruder, a discharge cylinder, a die head, a connecting mechanism and a stirring mechanism, the extruder is fixedly connected to the top of the workbench, the discharge cylinder is fixedly connected to the top of the rear part of the outer side wall of the extruder, and the die head is fixedly connected to the top of the rear part of the outer side wall of the extruder. According to the hot-melt extrusion device for producing the adhesive tape for the machine, when a die head needs to be replaced, a pulling plate is pulled to drive a fixing rod to move, so that the fixing rod moves out of a fixing hole, the die head is released from being fixed, meanwhile, a connecting spring is stretched, then the die head is detached, a new die head is installed, a positioning block is located in a positioning groove, the pulling plate is loosened, and through resetting of the connecting spring, the die head can be replaced. The fixing rods are embedded in the fixing holes to fix the die head, connection through bolts is avoided, so that replacement of the die head is very simple and convenient, time and labor are saved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hot melt extrusion devices, specifically a hot melt extrusion device for the production of machine tape. Background Technology

[0002] A hot melt extruder is a coating device that uses hot extrusion. Hot melt adhesive is continuously fed into a heated barrel through a feeding funnel. After melting, it is extruded through a pipe outlet by the action of a screw rod inside the barrel. Hot melt extruders can also be used in the rubber industry to melt rubber raw materials and extrude them into rubber strips, sealing strips, hoses, tapes and other rubber products. Hot melt extruders are frequently used in the production of machine tapes.

[0003] Current hot melt extruders require different extrusion dies when producing tapes of different models and specifications. The dies are usually fixed to the extrusion port of the extruder with bolts, which makes it very inconvenient to replace the dies. Disassembly and assembly are time-consuming and labor-intensive, reducing the practicality of the device. To address this, we have proposed a hot melt extrusion device for machine tape production. Utility Model Content

[0004] The purpose of this utility model is to provide a hot melt extrusion device for the production of machine tape, so as to solve the problem mentioned in the background art that the current hot melt extruder is very inconvenient to change the die head, and the disassembly and assembly are time-consuming and laborious, which reduces the practicality of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot melt extrusion device for producing machine-grade adhesive tape, comprising a worktable, an extruder, a feeding cylinder, a die head, a connecting mechanism, and a stirring mechanism. The extruder is fixedly connected to the top of the worktable, the feeding cylinder is fixedly connected to the top rear part of the outer side wall of the extruder, the die head is connected to the outlet of the extruder through the connecting mechanism, and the stirring mechanism is connected to the inside of the feeding cylinder. The connecting mechanism includes a connecting shell, a positioning groove, a fixing rod, a pull plate, a connecting spring, a positioning block, and a fixing hole. The connecting shell is fixedly connected to the outer side wall of the extruder at the outlet. The outer side wall of the connecting shell has symmetrically through-cut positioning grooves. The left and right sides of the outer side wall of the connecting shell are slidably connected to fixing rods. The far ends of the left and right sides of the fixing rods are fixedly connected to pull plates. The outer side of the fixing rods is sleeved with a connecting spring. The outer side wall of the die head has symmetrically fixedly connected positioning blocks, and the left and right sides of the outer side wall of the die head have fixing holes.

[0006] As a further description of the above technical solution:

[0007] The two ends of the connecting spring are fixedly connected to the opposite sides of the pull plate and the connecting shell, respectively.

[0008] As a further description of the above technical solution:

[0009] The inner diameter of the die head is equal to the outer diameter of the extrusion nozzle of the extruder.

[0010] As a further description of the above technical solution:

[0011] The agitation mechanism includes a mounting plate, a drive motor, a connecting plate, a connecting rod, a first agitator, a rotating shaft, a second agitator, a gear, and an internal gear ring. The top of the discharge cylinder is fixedly connected to the mounting plate, the top center of the mounting plate is fixedly connected to the drive motor, the output shaft end of the drive motor is fixedly connected to the connecting plate, the bottom center of the connecting plate is fixedly connected to the connecting rod, the outer side wall of the connecting rod is uniformly and symmetrically fixedly connected to the first agitator, the top of the connecting plate is symmetrically and rotatably connected to the rotating shaft, the outer side wall of the rotating shaft is uniformly and symmetrically fixedly connected to the second agitator, the top of the outer side wall of the rotating shaft is fixedly connected to the gear, and the top of the inner side wall of the discharge cylinder is fixedly connected to the internal gear ring.

[0012] As a further description of the above technical solution:

[0013] The input end of the drive motor is electrically connected to the output end of an external power supply, and the output shaft of the drive motor passes through the bottom of the mounting plate.

[0014] As a further description of the above technical solution:

[0015] The first stirring rod and the second stirring rod are installed in a staggered manner, and the outer wall of the gear is connected to the inner wall of the internal gear ring through tooth patterns.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This machine uses a hot melt extrusion device for tape production. When it is necessary to change the die head, pull the pull plate, which moves the fixing rod so that the fixing rod moves out of the fixing hole, releasing the fixing of the die head. At the same time, the connecting spring is stretched, and then the die head is disassembled and the new die head is installed. The positioning block is positioned in the positioning groove, and the pull plate is loosened. Through the reset of the connecting spring, the fixing rod is embedded in the fixing hole to fix the die head. This avoids the use of bolts for connection, making the die head replacement very simple and convenient, saving time and effort, and improving the practicality of the device.

[0018] 2. This machine uses a hot melt extrusion device for tape production. The starting of the drive motor rotates the connecting plate, causing the connecting rod to rotate, which in turn rotates the first agitator. As the connecting plate rotates, the shaft deflects, and the gear meshes with the internal gear ring. This deflection of the shaft causes the gear to rotate, which in turn rotates the shaft, causing the second agitator to rotate. The rotation of the first and second agitators agitates and mixes the raw materials inside the feeding cylinder, resulting in more uniform melting and mixing in the later stages, improving the quality of the hot melt, preventing material clumping, and avoiding blockages. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a hot melt extrusion device for producing machine-grade adhesive tape, as proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the connecting spring mounting structure of a hot melt extrusion device for producing machine-grade adhesive tape, as proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the fixing hole opening structure of a hot melt extrusion device for producing machine tape according to this utility model;

[0022] Figure 4 This is a schematic diagram of the stirring mechanism of a hot melt extrusion device for producing machine tape, as proposed in this utility model.

[0023] In the diagram: 100, worktable; 200, extruder; 300, feeding cylinder; 400, die head; 500, connecting mechanism; 510, connecting shell; 520, positioning groove; 530, fixing rod; 540, pull plate; 550, connecting spring; 560, positioning block; 570, fixing hole; 600, stirring mechanism; 610, mounting plate; 620, drive motor; 630, connecting plate; 640, connecting rod; 641, first stirring rod; 650, rotating shaft; 651, second stirring rod; 660, gear; 670, internal gear ring. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] This utility model provides a hot melt extrusion device for machine tape production, eliminating the need for bolt connections, thus making die replacement very simple and convenient, saving time and labor, and improving the practicality of the device. Please refer to [link / reference]. Figure 1-4 It includes a worktable 100, an extruder 200, a feeding cylinder 300, a die head 400, a connecting mechanism 500, and a stirring mechanism 600;

[0028] Please refer to it again. Figure 1 The workbench 100 is used to install the extruder 200, the feeding cylinder 300, the die head 400, the connecting mechanism 500, and the stirring mechanism 600;

[0029] Please refer to it again. Figure 1 The extruder 200 is fixedly connected to the top of the workbench 100, and the discharge cylinder 300 is fixedly connected to the rear top of the outer side wall of the extruder 200 for mounting the agitation mechanism 600. The die head 400 is connected to the outlet of the extruder 200 through the connecting mechanism 500, and the agitation mechanism 600 is connected to the inside of the discharge cylinder 300.

[0030] Please refer to it again. Figure 2-3 The connecting mechanism 500 includes a connecting shell 510, a positioning groove 520, a fixing rod 530, a pull plate 540, a connecting spring 550, a positioning block 560, and a fixing hole 570.

[0031] Please refer to it again. Figure 2 A connecting shell 510 is fixedly connected to the outer side wall of the extruder 200. A positioning groove 520 is symmetrically opened through the outer side wall of the connecting shell 510. A fixing rod 530 is slidably connected through the left and right parts of the outer side wall of the connecting shell 510. A pull plate 540 is fixedly connected to the far ends of the left and right fixing rods 530. A connecting spring 550 is sleeved on the outside of the fixing rod 530.

[0032] Please refer to it again. Figure 3 Positioning blocks 560 are symmetrically fixedly connected to the outer side wall of the mold head 400, and fixing holes 570 are opened on the left and right sides of the outer side wall of the mold head 400.

[0033] In summary, when the mold head 400 needs to be replaced, pull the pull plate 540 to move the fixing rod 530, causing the fixing rod 530 to move out of the fixing hole 570, thus releasing the fixing of the mold head 400. At the same time, the connecting spring 550 is stretched. Then, the mold head 400 is disassembled and the new mold head 400 is installed, so that the positioning block 560 is located in the positioning groove 520. Loosen the pull plate 540, and through the reset of the connecting spring 550, the fixing rod 530 is embedded in the fixing hole 570, fixing the mold head 400. This avoids the use of bolts for connection, making the replacement of the mold head 400 very simple and convenient, saving time and effort, and improving the practicality of the device.

[0034] Please refer to it again. Figure 2 The two ends of the connecting spring 550 are fixedly connected to the opposite sides of the pull plate 540 and the connecting shell 510, respectively.

[0035] Please refer to it again. Figure 3 The inner diameter of the die head 400 is equal to the outer diameter of the extrusion port of the extruder 200.

[0036] Please refer to it again. Figure 4 The agitation mechanism 600 includes a mounting plate 610, a drive motor 620, a connecting plate 630, a connecting rod 640, a first agitator 641, a rotating shaft 650, a second agitator 651, a gear 660, and an internal gear ring 670. The top of the discharge cylinder 300 is fixedly connected to the mounting plate 610. The top center of the mounting plate 610 is fixedly connected to the drive motor 620. The output shaft end of the drive motor 620 is fixedly connected to the connecting plate 630. The bottom center of the connecting plate 630 is fixedly connected to the connecting rod 640. The first agitator 641 is uniformly and symmetrically fixedly connected to the outer side wall of the connecting rod 640. The top of the connecting plate 630 is symmetrically and rotatably connected to the rotating shaft 650. The outer side wall of the rotating shaft 650 is uniformly and symmetrically fixedly connected to the second agitator 651. The top of the outer side wall of the rotating shaft 650 is fixedly connected to the gear 660. The top of the inner side wall of the discharge cylinder 300 is fixedly connected to the internal gear ring 670.

[0037] Please refer to it again. Figure 4 The input terminal of the drive motor 620 is electrically connected to the output terminal of the external power supply, and the output shaft of the drive motor 620 passes through the bottom of the mounting plate 610.

[0038] Please refer to it again. Figure 4 The first stirring rod 641 and the second stirring rod 651 are installed in a staggered manner, and the outer wall of the gear 660 is connected to the inner wall of the internal gear ring 670 through tooth patterns.

[0039] In summary, by starting the drive motor 620, the connecting plate 630 rotates, causing the connecting rod 640 to rotate, which in turn drives the first stirring rod 641 to rotate. When the connecting plate 630 rotates, the rotating shaft 650 deflects. The gear 660 meshes with the internal gear ring 670, and when the rotating shaft 650 deflects, the gear 660 rotates, causing the rotating shaft 650 to rotate, which in turn drives the second stirring rod 651 to rotate. Through the rotation of the first stirring rod 641 and the second stirring rod 651, the raw materials inside the discharge cylinder 300 are stirred and mixed, resulting in more uniform melting and mixing of the raw materials in the later stages, improving the quality of the hot melt, preventing material agglomeration, and preventing blockages.

[0040] In practical use, when the die head 400 needs to be replaced, those skilled in the art pull the pull plate 540, causing the fixing rod 530 to move out of the fixing hole 570, releasing the fixing of the die head 400. Simultaneously, the connecting spring 550 is stretched. Then, the die head 400 is disassembled, and a new die head 400 is installed, positioning the positioning block 560 within the positioning groove 520. The pull plate 540 is then loosened, and the fixing rod 530 is repositioned into the fixing hole 570 by the reset of the connecting spring 550, thus fixing the die head 400. During production, the raw material is poured into the feeding cylinder 300, and the extruder 200 and drive motor 620 are started. When the drive motor 620 is started, the connecting plate 630 rotates, causing the connecting rod 640 to rotate, which in turn causes the first stirring rod 641 to rotate. When the connecting plate 630 rotates, the rotating shaft 650 deflects. The gear 660 meshes with the internal gear ring 670. When the rotating shaft 650 deflects, the gear 660 rotates, causing the rotating shaft 650 to rotate, which in turn causes the second stirring rod 651 to rotate. Through the rotation of the first stirring rod 641 and the second stirring rod 651, the raw material inside the discharge cylinder 300 is stirred and mixed. The mixed raw material enters the extruder 200 for hot melting, and then the molten raw material is extruded from the die head 400 through the extruder 200 to form a shape.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A hot melt extrusion device for producing machine-grade adhesive tape, characterized in that: The device includes a worktable (100), an extruder (200), a feeding cylinder (300), a die (400), a connecting mechanism (500), and a stirring mechanism (600). The extruder (200) is fixedly connected to the top of the worktable (100). The feeding cylinder (300) is fixedly connected to the rear top of the outer side wall of the extruder (200). The die (400) is connected to the outlet of the extruder (200) through the connecting mechanism (500). The stirring mechanism (600) is connected to the inside of the feeding cylinder (300). The connecting mechanism (500) includes a connecting shell (510), a positioning groove (520), a fixing rod (530), a pull plate (540), and a connecting... The extruder (200) is connected to a spring (550), a positioning block (560), and a fixing hole (570). A connecting shell (510) is fixedly connected to the outer side wall of the extruder (200). A positioning groove (520) is symmetrically opened through the outer side wall of the connecting shell (510). A fixing rod (530) is slidably connected through the left and right parts of the outer side wall of the connecting shell (510). A pull plate (540) is fixedly connected to the far ends of the left and right fixed rods (530). A connecting spring (550) is sleeved on the outside of the fixing rod (530). A positioning block (560) is symmetrically fixedly connected to the outer side wall of the die head (400). Fixing holes (570) are opened on the left and right parts of the outer side wall of the die head (400).

2. The hot melt extrusion device for producing machine-grade adhesive tape according to claim 1, characterized in that: The two ends of the connecting spring (550) are fixedly connected to the opposite sides of the pull plate (540) and the connecting shell (510), respectively.

3. The hot melt extrusion device for producing machine-grade adhesive tape according to claim 1, characterized in that: The inner diameter of the die (400) is equal to the outer diameter of the extrusion port of the extruder (200).

4. The hot melt extrusion device for producing machine-grade adhesive tape according to claim 1, characterized in that: The agitation mechanism (600) includes a mounting plate (610), a drive motor (620), a connecting plate (630), a connecting rod (640), a first agitator (641), a rotating shaft (650), a second agitator (651), a gear (660), and an internal gear ring (670). The top of the discharge cylinder (300) is fixedly connected to the mounting plate (610), the top center of the mounting plate (610) is fixedly connected to the drive motor (620), and the output shaft end of the drive motor (620) is fixedly connected to the connecting plate (630). A connecting rod (640) is fixedly connected to the bottom center of the connecting plate (630). A first stirring rod (641) is fixedly connected to the outer side wall of the connecting rod (640) in a uniform and symmetrical manner. A rotating shaft (650) is symmetrically and rotatably connected to the top of the connecting plate (630). A second stirring rod (651) is fixedly connected to the outer side wall of the rotating shaft (650) in a uniform and symmetrical manner. A gear (660) is fixedly connected to the top of the outer side wall of the rotating shaft (650). An internal gear ring (670) is fixedly connected to the top of the inner side wall of the discharge cylinder (300).

5. The hot melt extrusion device for producing machine-grade adhesive tape according to claim 4, characterized in that: The input end of the drive motor (620) is electrically connected to the output end of the external power supply, and the output shaft of the drive motor (620) passes through the bottom of the mounting plate (610).

6. The hot melt extrusion device for producing machine-grade adhesive tape according to claim 4, characterized in that: The first stirring rod (641) and the second stirring rod (651) are installed in a staggered manner, and the outer wall of the gear (660) is meshed with the inner wall of the internal gear ring (670) through tooth patterns.

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