Embossing device for synthetic leather processing

Abstract

The utility model discloses an embossing device for synthetic leather processing, including work table and fixed frame, the upper end fixed mounting of work table has the base, the upper end fixed mounting of base has the lower mould, the top fixed mounting of fixed frame has the hydraulic cylinder, the output of hydraulic cylinder fixed mounting has the movable plate, the lower end fixed mounting of movable plate has the upper die, aims at solving the problem of embossed product processing quality not high. Its technical scheme main point is: an embossing device for synthetic leather processing. The utility model passes through the physical isolation, effectively prevented dust, fibre and other impurities and attached in the die surface or dropped into the recess of lower mould, avoided the embossing defect (such as the convex point, the pit, the scratch, the pattern blur etc.) caused by impurity, thereby greatly reduced the product failure rate and the scrap rate, guaranteed the appearance quality of embossed product.

Description

Technical Field

[0001] This utility model relates to the field of synthetic leather processing technology, and more specifically, it relates to an embossing device for synthetic leather processing. Background Technology

[0002] Embossing equipment for synthetic leather processing refers to specialized machinery or systems used in the production of synthetic leather (artificial leather) to create specific textures, patterns, or grain effects on its surface. Its core function is to precisely replicate patterns from a mold onto the surface of synthetic leather through the physical processes of heat, pressure, and molding, thereby enhancing the product's decorative properties, texture, slip resistance, or achieving a biomimetic effect.

[0003] When using existing upper and lower molds to emboss synthetic leather, the molds are exposed to the external environment when not in use, making them highly susceptible to contamination from dust, fibers, oil, and other impurities. In particular, dust or particles that fall into the grooves (cavities) of the lower mold can adhere to the mold surface or become embedded in the grooves, directly "imprinting" onto the synthetic leather surface during embossing. This results in raised dots, pits, scratches, or blurry patches, leading to poor product appearance or even scrapping.

[0004] Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an embossing device for synthetic leather processing, which aims to solve the technical problem that the existing upper and lower molds are prone to accumulating dust and other impurities when not in use, thus affecting product quality.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an embossing device for processing synthetic leather, comprising a worktable and a fixed frame, a base fixedly installed on the upper end of the worktable, a lower mold fixedly installed on the upper end of the base, a hydraulic cylinder fixedly installed on the top of the fixed frame, a movable plate fixedly installed on the output end of the hydraulic cylinder, an upper mold fixedly installed on the lower end of the movable plate, the upper mold being directly above the lower mold, a vertical plate fixedly installed on the upper left side of the worktable, an electric cylinder fixedly installed on the left end of the vertical plate, an adjusting plate fixedly installed on the output end of the electric cylinder, and a protective cover fixedly installed on both the upper and lower sides of the right end of the adjusting plate, the openings of the two protective covers being opposite and the length of the protective covers being the same as the length of the upper and lower molds.

[0007] The present invention is further configured such that a protective plate is fixedly installed on the upper right side of the upright plate and above the upper protective cover.

[0008] The present invention is further configured such that: two limiting rods are fixedly installed on the upper left and right sides of the movable plate, and the limiting rods are movably connected to the top of the fixed frame.

[0009] The present invention is further configured such that a blocking block is fixedly installed on both the left and right sides of the upper end of the movable plate, and the blocking block is located inside the fixed frame.

[0010] The present invention is further configured such that the protective cover is matched with the upper mold and the lower mold respectively.

[0011] In summary, this utility model has the following beneficial effects:

[0012] By installing an electric cylinder-driven adjustment plate on the upright plate and mounting two protective covers with opposite openings on the adjustment plate, the two protective covers can automatically move and completely cover the upper and lower molds respectively when not in operation. This directly solves the technical problem mentioned in the background technology that "dust and other impurities easily adhere to the upper and lower molds when not in operation". Through physical isolation, it effectively prevents dust, fibers and other impurities from adhering to the mold surface or falling into the groove of the lower mold, avoiding embossing defects (such as bumps, pits, scratches, blurred patterns, etc.) caused by impurities, thereby greatly reducing the product defect rate and scrap rate and ensuring the appearance quality of embossed products. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the embossing device of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the protective cover of this utility model.

[0015] In the diagram: 1. Workbench; 2. Fixing frame; 3. Base; 4. Lower mold; 5. Hydraulic cylinder; 6. Movable plate; 7. Upper mold; 8. Vertical plate; 9. Electric cylinder; 10. Adjusting plate; 11. Protective cover; 12. Protective plate; 13. Blocking block; 14. Limiting rod. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within 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.

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] An embossing device for processing synthetic leather, such as Figures 1 to 2 As shown, the device includes a workbench 1 and a fixed frame 2. A base 3 is fixedly installed on the upper end of the workbench 1, and a lower mold 4 is fixedly installed on the upper end of the base 3. A hydraulic cylinder 5 is fixedly installed on the top of the fixed frame 2. A movable plate 6 is fixedly installed on the output end of the hydraulic cylinder 5. An upper mold 7 is fixedly installed on the lower end of the movable plate 6. The upper mold 7 is located directly above the lower mold 4. A vertical plate 8 is fixedly installed on the upper left side of the workbench 1. An electric cylinder 9 is fixedly installed on the left end of the vertical plate 8. An adjusting plate 10 is fixedly installed on the output end of the electric cylinder 9. A protective cover 11 is fixedly installed on both the upper and lower sides of the right end of the adjusting plate 10. The openings of the two protective covers 11 are opposite, and the length of the protective cover 11 is the same as the length of the upper mold 7 and the lower mold 4. Since the opening of the lower protective cover 11 faces downward, it can prevent impurities from falling into the opening. And since the right side of the protective cover 11 has an opening, it is convenient for workers to clean impurities on the upper protective cover 11 to prevent dust from causing wear and tear on the mold.

[0021] like Figure 1 As shown, a protective plate 12 is fixedly installed on the upper right side of the upright plate 8 and above the upper protective cover 11. In the synthetic leather processing workshop, there may be foreign objects falling from above, debris splashed from other equipment, or dust clumps falling from the top of the workshop. The main function of the protective plate 12 is to block these foreign objects falling from above and prevent them from falling directly into the upper protective cover 11.

[0022] like Figure 1As shown, two limiting rods 14 are fixedly installed on the upper left and right sides of the movable plate 6. The limiting rods 14 and the top of the fixed frame 2 are movably connected through each other. The cooperation between the limiting rods 14 and the top of the fixed frame 2 forms a pair of linear guide pairs. It strictly constrains the movement trajectory of the movable plate 6, forcing it to make smooth and precise linear reciprocating motion only along the axial direction (i.e., the vertical direction) of the limiting rods 14.

[0023] A blocking block 13 is fixedly installed on both the left and right sides of the upper end of the movable plate 6, and the blocking block 13 is located inside the fixed frame 2.

[0024] The protective cover 11 is matched with the upper mold 7 and the lower mold 4 respectively.

[0025] Working principle: The upper mold 7 and lower mold 4 are usually equipped with electric heating rods or heat-conducting oil channels to heat the molds to the temperature required for embossing (usually 120℃-180℃). The upper mold 7 has a raised and recessed pattern (recessed pattern) on its surface that is opposite to the desired pattern. When pressed, its raised parts will form a depression on the synthetic leather, and its recessed parts will form a protrusion. The lower mold 4 is used in conjunction with the upper mold 7, and its surface pattern is complementary to that of the upper mold 7 to ensure uniform force and clear pattern during embossing. The operator accurately places the synthetic leather sheet to be processed into the cavity of the lower mold 4, ensuring that the position is aligned. The hydraulic cylinder 5 is activated, and its piston rod extends downward, pushing the movable plate 6 along with the upper mold. Together, the upper mold 7 moves vertically downwards. Under the precise guidance of the limit rods 14 on both sides, the upper mold 7 closes smoothly and vertically with the lower mold 4. After the upper and lower molds are fully fitted, the hydraulic system maintains the set high pressure for a certain period of time (pressure holding time, for example, 10-30 seconds). During this period, the surface of the synthetic leather softened by high temperature is completely filled and replicated by the negative pattern cavity of the lower mold 4 and the positive pattern part of the upper mold 7 under great pressure, thus forming a clear concave and convex pattern on the surface of the synthetic leather that complements the mold. After the pressure holding is completed, the piston rod of the hydraulic cylinder 5 retracts upwards, driving the upper mold 7 to rise and separate from the lower mold 4. The operator takes out the embossed synthetic leather product from the lower mold 4.

[0026] When hydraulic cylinder 5 drives movable plate 6 and upper mold 7 upward until the two blocking blocks 13 contact the top of the inner cavity of fixed frame 2, the upper protective cover 11 can be accurately aligned with upper mold 7. Electric cylinder 9 is connected to external power and started. After receiving the command, the drive controller of electric cylinder 9 starts the built-in servo motor (or stepper motor). The rotational motion of the motor is converted into linear motion through a precision ball screw mechanism, pushing the piston rod (output end) of electric cylinder 9 to extend smoothly and uniformly to the right (i.e., towards fixed frame 2). The piston rod of electric cylinder 9 is rigidly connected to adjusting plate 10. As the piston rod extends, the adjustment... As the plate 10 moves to the right, the two protective covers 11, which are fixed to the upper and lower sides of the right end of the adjusting plate 10 respectively, also move to the right synchronously. The two protective covers 11 correspond to the upper mold 7 and the lower mold 4, and the openings of the two protective covers 11 face opposite directions. Therefore, as the adjusting plate 10 moves to the right, the upper protective cover 11 (opening upward) moves directly below the upper mold 7 and covers it upward; at the same time, the lower protective cover 11 (opening downward) moves directly above the lower mold 4 and covers it downward. The two protective covers 11 completely seal the upper mold 7 and the lower mold 4, respectively, exposing them to the external environment. The protective cover 11 effectively isolates dust, fibers, and other impurities from adhering to the mold surface or falling into the groove (cavity) of the lower mold 4. The size of the protective cover 11 is the same as that of the upper mold 7 and the lower mold 4, allowing for complete coverage. Made of polycarbonate, which has extremely high light transmittance, comparable to glass but much lighter, the protective cover 11 allows operators to clearly observe the internal condition of the mold, such as whether the upper mold 7 and the lower mold 4 are completely exposed or covered, and whether there are foreign objects on the mold surface. Preliminary inspection can be performed without opening the protective cover 11, greatly facilitating operation and monitoring, and also providing impact resistance. It can effectively prevent operators or tools from accidentally colliding with the upper mold 7 or lower mold 4 during operation, providing reliable physical protection for expensive precision molds and avoiding mold damage caused by collisions. The polycarbonate material itself is dense, and the protective cover 11 made of it has a complete structure and good sealing performance (matching the mold). It can form a physical barrier to effectively isolate dust, fibers, lint and other pollutants in the workshop environment from entering the mold cavity. When embossing is required, the electric cylinder 9 is started first, and its output end drives the adjusting plate 10 to move to the left, thereby moving the two protective covers 11 away from the upper mold 7 and lower mold 4, so that the mold is fully exposed.

[0027] In summary, by setting an adjusting plate 10 driven by an electric cylinder 9 on the upright plate 8, and installing two protective covers 11 with opposite openings on the adjusting plate 10, the two protective covers 11 can automatically move and completely cover the upper mold 7 and the lower mold 4 respectively when not in operation. This directly solves the technical problem mentioned in the background technology that "dust and other impurities are easily attached to the upper and lower molds when not in operation". Through physical isolation, it effectively prevents dust, fibers and other impurities from adhering to the mold surface or falling into the groove of the lower mold 4, avoiding embossing defects (such as bumps, pits, scratches, blurred patterns, etc.) caused by impurities, thereby greatly reducing the product defect rate and scrap rate, and ensuring the appearance quality of embossed products.

[0028] It is worth noting that the electric cylinder 9 disclosed in the above embodiments is specifically the Festo EGC series, and the operation of the external control switch group and the external power supply to control the electric cylinder 9 adopts a method commonly used in the prior art.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An embossing device for processing synthetic leather, comprising a workbench (1) and a fixed frame (2), wherein a base (3) is fixedly installed on the upper end of the workbench (1), a lower mold (4) is fixedly installed on the upper end of the base (3), a hydraulic cylinder (5) is fixedly installed on the top of the fixed frame (2), a movable plate (6) is fixedly installed on the output end of the hydraulic cylinder (5), and an upper mold (7) is fixedly installed on the lower end of the movable plate (6), wherein the upper mold (7) is located directly above the lower mold (4), characterized in that: A vertical plate (8) is fixedly installed on the upper left side of the workbench (1). An electric cylinder (9) is fixedly installed on the left end of the vertical plate (8). An adjusting plate (10) is fixedly installed on the output end of the electric cylinder (9). A protective cover (11) is fixedly installed on both the upper and lower sides of the right end of the adjusting plate (10). The openings of the two protective covers (11) are opposite, and the length of the protective cover (11) is the same as the length of the upper mold (7) and the lower mold (4).

2. The embossing device for synthetic leather processing according to claim 1, characterized in that: A protective plate (12) is fixedly installed on the upper right side of the upright plate (8) and above the upper protective cover (11).

3. The embossing device for synthetic leather processing according to claim 1, characterized in that: Two limiting rods (14) are fixedly installed on the upper left and right sides of the movable plate (6), and the limiting rods (14) and the top of the fixed frame (2) are movably connected through each other.

4. The embossing device for synthetic leather processing according to claim 3, characterized in that: A blocking block (13) is fixedly installed on both the left and right sides of the upper end of the movable plate (6), and the blocking block (13) is located inside the fixed frame (2).

5. The embossing device for synthetic leather processing according to claim 1, characterized in that: The protective cover (11) is matched with the upper mold (7) and the lower mold (4) respectively.

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