A hot melt adhesive film production press mechanism

Abstract

The utility model relates to hot melt adhesive film production equipment technical field, concretely relates to a kind of hot melt adhesive film production pressing mechanism, including operation platform and the lower pressing plate of being located on the operation platform, the side of the lower pressing plate is limit entry, and the pressing upper surface of lower pressing plate is equipped with material placing groove, the substrate and hot melt adhesive glue layer of being pressed are placed in the material placing groove, when using, drive the upper pressing plate to move downward along the direction of mounting frame by starting drive part, the material pressing protrusion of pressing lower surface setting by upper pressing plate, cooperate the material placing groove below to carry out accurate positioning to the substrate and hot melt adhesive glue layer in material placing groove, when pressing, even pressure is applied to substrate and hot melt adhesive glue layer, again by heating element in the middle layer of lower pressing plate and upper pressing plate respectively, for providing the heat required for pressing, finally heat is conducted to substrate and hot melt adhesive glue layer, hot melt adhesive is fully fused and bonded, and hot melt adhesive film product quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of hot melt adhesive film production equipment, and in particular to a heat pressing mechanism for producing hot melt adhesive film. Background Technology

[0002] Hot melt adhesive film is a bonding material widely used in industries such as textiles, packaging, and automobiles. Its production process often requires a heat pressing process to bond the hot melt adhesive layer to the substrate. Traditional heat pressing equipment usually consists of two huge heating plates, one above and one below. The material to be pressed is sandwiched between two steel strips. As the steel strips move, the material passes through the heating zone, the heat preservation zone, and the cooling zone of the equipment in sequence. Throughout the process, the material is always subjected to uniform surface pressure applied by the steel strips, thereby completing the heat pressing bonding of the hot melt adhesive layer and the substrate.

[0003] For example, Chinese patent application number CN 202320765409.7 discloses a hot melt adhesive film pressing device, including an operating table, a rotating table, and a vertical rod. The operating table has a mounting hole in the center, and multiple placement platforms are fixedly arranged at equal intervals above the rotating table. Each placement platform has a pressing component, which prevents the hot press head from stopping when stacking hot melt adhesive films, effectively improving the efficiency of hot melt adhesive film pressing. However, this pressing device only uses the pressing component to heat-press the fabric and hot melt adhesive together. The substrate and hot melt adhesive cannot be precisely positioned, resulting in poor uniformity of pressing force, which is not conducive to the full melting and bonding of the hot melt adhesive. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a heat pressing mechanism for producing hot melt adhesive film, so as to solve the technical problem that the existing technology only uses a pressing component to heat press the fabric and hot melt adhesive together, which makes it impossible to accurately position the substrate and hot melt adhesive, resulting in poor uniformity of pressing force and hindering the full melting and bonding of the hot melt adhesive.

[0005] To achieve the above objectives, this utility model provides a heat pressing mechanism for producing hot melt adhesive film, including an operating table and a lower pressure plate disposed on the operating table. One side of the lower pressure plate is a limiting inlet, and the upper surface of the lower pressure plate is provided with a material placement groove. The material placement groove holds the substrate to be pressed and the hot melt adhesive layer. The heat pressing mechanism further includes: Mounting brackets located on both sides of the operating table; An upper pressure plate is slidably mounted on the mounting frame. The lower surface of the upper pressure plate is provided with a pressing protrusion, which cooperates with the material placement groove. Heating elements are provided in the middle layer of both the lower and upper pressure plates; A drive unit for driving the upper pressure plate to perform lifting and lowering actions, thereby performing heating, pressing, and separation of the substrate and hot melt adhesive layer.

[0006] Furthermore, both the upper surface of the lower pressure plate and the lower surface of the upper pressure plate are provided with a high-temperature resistant non-stick layer.

[0007] Furthermore, the drive unit includes: A drive motor is mounted on one side of the mounting bracket; Rotate the bidirectional lead screw mounted on the mounting bracket, the bidirectional lead screw also being connected to the output end of the drive motor; Moving blocks threaded onto both sides of the bidirectional lead screw; A push-pull rod is hinged to the side end of the movable block, and the other end of the push-pull rod is hinged to the surface of the upper pressure plate.

[0008] Furthermore, the push-pull rod on one side has a bent structure, which will not affect the operation of the push-pull rod on the other side.

[0009] Furthermore, the operating platform is provided with a clearance groove, and the upper pressure plate is provided with a cooling system on both sides.

[0010] Furthermore, the cooling system includes an L-shaped mounting bracket and a fan, with the fan's outlet positioned horizontally below the upper pressure plate.

[0011] Furthermore, the mounting bracket has guide grooves on both sides, and the upper pressure plate is slidably disposed in the guide grooves via guide sleeves.

[0012] Furthermore, the lower pressure plate is provided with an overflow groove, which is located on both sides of the material storage groove.

[0013] The beneficial effects of this utility model are as follows: In use, the drive unit is activated to drive the upper pressure plate to move downward along the mounting frame. The upper pressure plate presses the pressing protrusions on the lower surface, which, together with the material placement groove below, accurately positions the substrate and hot melt adhesive layer in the material placement groove. During pressing, uniform pressure is applied to the substrate and hot melt adhesive layer. Then, the heating elements in the middle layer of the lower and upper pressure plates provide the heat required for pressing. Finally, the heat is conducted to the substrate and hot melt adhesive layer, so that the hot melt adhesive can be fully melted and bonded, and the quality of the hot melt adhesive film product is guaranteed. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic diagram of the assembly of the upper pressure plate and the cooling system in this utility model; Figure 3 This is a schematic diagram of the assembly of the lower pressure plate and the mounting bracket in this utility model; Figure 4 This is a schematic diagram of the assembly of the upper pressure plate and the drive unit in this utility model.

[0016] The diagram is marked as follows: 1. Operating table; 2. Lower pressure plate; 3. Material trough; 4. Mounting frame; 5. Upper pressure plate; 6. Material pressing protrusion; 7. Heating element; 8. Drive motor; 9. Two-way lead screw; 10. Moving block; 11. Push-pull rod; 12. Fixing frame; 13. Fan; 14. Guide groove; 15. Guide sleeve; 16. Glue overflow groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] The first aspect of this utility model provides a heat pressing mechanism for producing hot melt adhesive film, such as... Figure 1-4 As shown, the device includes an operating table 1 and a lower pressure plate 2 mounted on the operating table 1. One side of the lower pressure plate 2 is a limiting inlet, and the upper surface of the lower pressure plate 2 is provided with a material placement groove 3. The material placement groove 3 holds the substrate to be pressed and the hot melt adhesive layer. The pressing mechanism also includes: Mounting brackets 4 are located on both sides of the control panel 1; The upper pressure plate 5 is slidably mounted on the mounting frame 4. The lower surface of the upper pressure plate 5 is provided with a pressing protrusion 6, which cooperates with the material placement groove 3. Heating elements 7 are provided in the middle layer of both the lower pressure plate 2 and the upper pressure plate 5; The drive unit is used to drive the upper pressure plate 5 to perform lifting and lowering actions, so as to perform heating, pressing and separation of the substrate and hot melt adhesive layer.

[0020] In this embodiment, during use, the substrate and hot melt adhesive layer are respectively placed into the limiting inlet on one side of the lower pressure plate 2 through the external conveying device of the pressing mechanism. The substrate and hot melt adhesive layer to be pressed are placed in the material placement groove 3. The drive unit is activated to drive the upper pressure plate 5 to move downward along the mounting frame 4. The upper pressure plate 5 presses the pressing protrusion 6 on the lower surface, which, together with the material placement groove 3 below, accurately positions the substrate and hot melt adhesive layer in the material placement groove 3. During pressing, uniform pressure is applied to the substrate and hot melt adhesive layer. The heating element 7 in the middle layer of the lower pressure plate 2 and the upper pressure plate 5 is used to provide the heat required for pressing. Finally, the heat is conducted to the substrate and hot melt adhesive layer, and the hot melt adhesive is fully melted and bonded.

[0021] In this embodiment, as Figure 1 As shown, both the upper surface of the lower pressure plate 2 and the lower surface of the upper pressure plate 5 are provided with a high-temperature resistant non-stick layer, which reduces the difficulty of demolding and avoids damage to the surface of the hot melt adhesive film.

[0022] In this embodiment, as Figure 4 As shown, the drive unit includes: A drive motor 8 is mounted on a mounting bracket 4 on one side; Rotate the bidirectional lead screw 9 mounted on the mounting bracket 4. The bidirectional lead screw 9 is also connected to the output end of the drive motor 8. Moving blocks 10 are threadedly installed on both sides of the bidirectional lead screw 9; A push-pull rod 11 is hinged to the side end of the movable block 10, and the other end of the push-pull rod 11 is hinged to the surface of the upper pressure plate 5. Specifically, taking the downward movement of the upper pressure plate 5 as an example, the output end of the drive motor 8 drives the bidirectional lead screw 9 to rotate, and then, with the cooperation of the mounting bracket 4, drives the two moving blocks 10 to move towards each other. The push-pull rod 11 pushes the upper pressure plate 5 downward until it cooperates with the lower pressure plate 2 below. The output end of the drive motor 8 rotates in the opposite direction, which drives the upper pressure plate 5 to move upward. Furthermore, by controlling the rotation and stop of the output end of the drive motor 8, the stroke of the upper pressure plate 5 can also be controlled, so that the pressing force on the substrate and the hot melt adhesive layer is controllable, which is suitable for the processing needs of hot melt adhesive films of different thicknesses.

[0023] In this embodiment, as Figure 4 As shown, the push-pull rod 11 on one side has a bent structure, which will not affect the movement process of the push-pull rod 11 on the other side, avoids motion interference, ensures that the upper pressure plate 5 and the lower pressure plate 2 remain parallel during the lifting process, and improves product consistency.

[0024] In this embodiment, as Figure 1 , Figure 2 As shown, the operating table 1 is provided with a clearance groove, and the upper pressure plate 5 is provided with a cooling system on both sides. The cooling system includes an L-shaped fixing frame 12 and a fan 13. The air outlet of the fan 13 is positioned horizontally below the upper pressure plate 5 to accelerate the cooling and shaping of the hot melt adhesive film product and shorten the production cycle.

[0025] In this embodiment, as Figure 3 As shown, the mounting bracket 4 has guide grooves 14 on both sides. The upper pressure plate 5 is slidably disposed in the guide groove 14 through the guide sleeve 15. The guide groove 14 and the guide sleeve 15 cooperate to ensure that the upper pressure plate 5 moves vertically, prevents skewing, and improves the pressing accuracy.

[0026] In this embodiment, as Figure 1 , Figure 3 As shown, the lower pressure plate 2 is provided with an overflow groove 16, which is placed on both sides of the material storage groove 3. The overflow groove 16 can collect the overflowing excess glue and reduce the amount of cleaning work.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat pressing mechanism for producing hot melt adhesive film, comprising an operating table (1) and a lower pressure plate (2) disposed on the operating table (1), characterized in that, One side of the lower pressure plate (2) is a limiting inlet, and the upper surface of the lower pressure plate (2) is provided with a material placement groove (3). The material placement groove (3) is used to place the substrate to be pressed and the hot melt adhesive layer. The pressing mechanism also includes: Mounting brackets (4) are provided on both sides of the operating table (1); The upper pressure plate (5) is slidably mounted on the mounting frame (4). The lower surface of the upper pressure plate (5) is provided with a pressing protrusion (6), which cooperates with the material placement groove (3). Heating elements (7) are provided in the middle layer of both the lower pressure plate (2) and the upper pressure plate (5); The drive unit is used to drive the upper pressure plate (5) to perform lifting and lowering actions to perform heating, pressing and separation of the substrate and hot melt adhesive layer.

2. The heat pressing mechanism for producing hot melt adhesive film according to claim 1, characterized in that, The upper surface of the lower pressure plate (2) and the lower surface of the upper pressure plate (5) are both provided with a high-temperature resistant non-stick layer.

3. The heat pressing mechanism for producing hot melt adhesive film according to claim 1, characterized in that, The drive unit includes: A drive motor (8) is mounted on the mounting bracket (4) on one side. Rotate the bidirectional lead screw (9) mounted on the mounting bracket (4), the bidirectional lead screw (9) is also connected to the output end of the drive motor (8); The movable blocks (10) are threaded onto both sides of the bidirectional lead screw (9); A push-pull rod (11) is hinged to the side end of the moving block (10), and the other end of the push-pull rod (11) is hinged to the surface of the upper pressure plate (5).

4. The heat pressing mechanism for producing hot melt adhesive film according to claim 3, characterized in that, The push-pull rod (11) on one side has a bent structure, which will not affect the operation of the push-pull rod (11) on the other side.

5. The heat pressing mechanism for producing hot melt adhesive film according to claim 1, characterized in that, The operating table (1) is provided with a clearance groove, and the upper pressure plate (5) is provided with a cooling system on both sides.

6. The heat pressing mechanism for producing hot melt adhesive film according to claim 5, characterized in that, The cooling system includes an L-shaped mounting bracket (12) and a fan (13), with the air outlet of the fan (13) positioned horizontally below the upper pressure plate (5).

7. The heat pressing mechanism for producing hot melt adhesive film according to claim 1, characterized in that, The mounting bracket (4) has guide grooves (14) on both sides, and the upper pressure plate (5) is slidably disposed in the guide grooves (14) through the guide sleeve (15).

8. The heat pressing mechanism for producing hot melt adhesive film according to claim 1, characterized in that, The lower pressure plate (2) is provided with an overflow groove (16), which is placed on both sides of the material storage groove (3).

Images