Thickness-adjustable polyester film calendering mold structure

Abstract

The utility model relates to the field of polyurethane film processing, in particular to a thickness-adjustable polyester film calendering mold structure which comprises a box body, a lower mold is fixedly mounted at the bottom of an inner cavity of the box body, an upper mold is mounted at the top of the inner cavity of the box body, and a hydraulic cylinder is mounted at the center of the top of the box body through a bolt; by means of the liquid injection derusting assembly, when the lower die and the upper die need to be derusted, a derusting agent on the right side of the liquid storage tank is conveyed to the first heat exchange groove and the second heat exchange groove, the lower die and the upper die are derusted, the overall using effect is improved, the derusting effect is achieved, and the problem that in the actual machining process, the derusting efficiency is high is solved. The problems that heat dissipation is generally conducted on a mold in a fan heat dissipation mode, the heat dissipation effect is common, heat deformation is generated due to uneven temperature of the mold, and meanwhile if rust exists in a cooling pipeline and the interior of the mold in a water-cooling heat dissipation system, the heat exchange efficiency is reduced are solved.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane film processing, specifically a polyester film calendering die structure with adjustable thickness. Background Technology

[0002] Polyester film processing refers to the process of processing polyester film through a series of processes such as cutting, printing, and coating to meet the needs of different industries such as packaging and electronics. During the processing of polyester film, molds are needed to achieve specific shapes and sizes.

[0003] In actual processing, molds are usually cooled by fans, but the cooling effect is generally poor. The heat capacity of fans is far lower than that of water, and they cannot quickly absorb a large amount of heat, which leads to thermal deformation of the mold due to uneven temperature. At the same time, if there is rust in the cooling pipes of the water cooling system and inside the mold, it is difficult to remove the rust, which will affect the cooling efficiency. Rust will also increase fluid resistance and reduce heat exchange efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, in actual processing, molds are usually cooled by fans, which is generally ineffective. The heat capacity of fans is far lower than that of water, and they cannot quickly absorb a large amount of heat, leading to thermal deformation of the mold due to uneven temperature. At the same time, if there is rust in the cooling pipes and inside the mold in the water cooling system, it is difficult to remove the rust, which will affect the cooling efficiency. Rust will also increase fluid resistance and reduce heat exchange efficiency. This utility model proposes a polyester film calendering mold structure with adjustable thickness.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an adjustable thickness polyester film calendering mold structure, including a box body, a lower mold fixedly installed at the bottom of the inner cavity of the box body, an upper mold installed at the top of the inner cavity of the box body, a hydraulic cylinder bolted at the center of the top of the box body, a protrusion fixedly installed at the bottom of the upper mold, heat dissipation ejection components installed on the surfaces of the lower mold and the upper mold, a fixing plate fixedly connected to the left side of the box body, and a liquid injection rust removal component installed on the top of the fixing plate;

[0006] The liquid injection rust removal assembly includes a liquid storage tank, a first auxiliary pipe and a second auxiliary pipe. A partition plate is fixedly connected to the inner cavity of the liquid storage tank. A reinforcing plate is fixedly installed at the bottom of the fixed plate. An infusion pump is bolted to the surface of the reinforcing plate.

[0007] Preferably, the heat dissipation ejection assembly includes a first heat exchange tank, a conveying pipe, and a second heat exchange tank. A spring is installed inside the lower mold, and a top block is fixedly installed at the other end of the spring.

[0008] Preferably, the output end of the hydraulic cylinder extends into the inner cavity of the housing, and the output end of the hydraulic cylinder is fixedly connected to the upper mold.

[0009] Preferably, the first heat exchange groove is formed on the surface of the lower mold, the second heat exchange groove is formed on the surface of the upper mold, and one end of the conveying pipe is connected to the left side of the lower mold and the upper mold respectively.

[0010] Preferably, the lower mold is fixedly connected to the right side of the upper mold with a liquid outlet pipe, and one end of the spring is fixedly connected to the connection point of the lower mold.

[0011] Preferably, guide rods are fixedly installed on both the left and right sides of the bottom of the top block, and the top of the guide rods passes through the top block and is slidably connected to the connection point of the top block.

[0012] Preferably, the bottom of the liquid storage tank is fixedly connected to the top of the fixed plate, the first auxiliary pipe and the second auxiliary pipe are both connected to the delivery pipe, and inlet pipes are fixedly installed on the left and right sides of the top of the liquid storage tank.

[0013] Preferably, the infusion pump is fixedly equipped with a first three-way valve at the inlet end, and a first connecting pipe and a second connecting pipe are respectively connected to the left and right sides of the first three-way valve. The ends of the first connecting pipe and the second connecting pipe away from the first three-way valve extend into the inner cavity of the storage tank.

[0014] Preferably, a second three-way valve is fixedly installed at the outlet end of the infusion pump, and the left and right ends of the second three-way valve are respectively connected to the first auxiliary pipe and the second auxiliary pipe.

[0015] The advantages of this utility model are:

[0016] This invention utilizes a liquid-injection rust removal component. When rust removal is required on the lower and upper molds, the rust remover on the right side of the storage tank is delivered to the first and second heat exchange tanks to remove rust from the lower and upper molds. This improves the overall performance and achieves the desired rust removal effect. It also solves the problems encountered in actual processing, where molds typically rely on fans for heat dissipation, which is generally ineffective. The heat capacity of fans is far lower than that of water, making it impossible to quickly absorb large amounts of heat, leading to thermal deformation of the mold due to uneven temperature. Furthermore, if rust exists in the cooling pipes of the water-cooled system or inside the mold, it is difficult to remove rust, affecting cooling efficiency. Rust also increases fluid resistance and reduces heat exchange efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the heat dissipation ejection component of this utility model;

[0020] Figure 3 This is a bottom-view cross-sectional perspective view of the heat dissipation ejection component of this utility model;

[0021] Figure 4 This is a three-dimensional cross-sectional view of the liquid injection rust removal component of this utility model.

[0022] In the diagram: 1. Box body; 2. Lower mold; 3. Hydraulic cylinder; 4. Upper mold; 5. Protrusion; 6. Heat dissipation ejection assembly; 601. First heat exchange tank; 602. Delivery pipe; 603. Liquid outlet pipe; 604. Spring; 605. Guide rod; 606. Top block; 607. Second heat exchange tank; 7. Fixing plate; 8. Liquid injection and rust removal assembly; 801. Storage tank; 802. Liquid inlet pipe; 803. Divider plate; 804. Liquid pump; 805. First three-way valve; 806. First auxiliary pipe; 807. First connecting pipe; 808. Second connecting pipe; 809. Reinforcing plate; 810. Second three-way valve; 811. Second auxiliary pipe. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0025] This application discloses a polyester film calendering die structure with adjustable thickness. (Refer to...) Figure 1 and Figure 4An adjustable thickness polyester film calendering die structure includes a box body 1, a lower die 2 fixedly installed at the bottom of the inner cavity of the box body 1, an upper die 4 installed at the top of the inner cavity of the box body 1, a hydraulic cylinder 3 bolted at the center of the top of the box body 1, a protrusion 5 fixedly installed at the bottom of the upper die 4, heat dissipation ejection components 6 installed on the surfaces of both the lower die 2 and the upper die 4, a fixing plate 7 fixedly connected to the left side of the box body 1, and a liquid injection rust removal component 8 installed on the top of the fixing plate 7;

[0026] The liquid injection rust removal assembly 8 includes a liquid storage tank 801, a first auxiliary pipe 806, and a second auxiliary pipe 811. A partition plate 803 is fixedly connected to the inner cavity of the liquid storage tank 801. A reinforcing plate 809 is fixedly installed at the bottom of the fixing plate 7. An infusion pump 804 is bolted to the surface of the reinforcing plate 809. The fixing plate 7 provides an installation position for the liquid injection rust removal assembly 8, allowing the liquid injection rust removal assembly 8 to be installed stably.

[0027] Reference Figure 2 and Figure 3 The heat dissipation ejection assembly 6 includes a first heat exchange tank 601, a conveying pipe 602, and a second heat exchange tank 607. A spring 604 is installed inside the lower mold 2, and a top block 606 is fixedly installed at the other end of the spring 604. With the top block 606, the processed object can be easily ejected under the elastic support of the spring 604.

[0028] Reference Figure 2 and Figure 3 The output end of the hydraulic cylinder 3 extends into the inner cavity of the housing 1, and the output end of the hydraulic cylinder 3 is fixedly connected to the upper mold 4. Through the setting of the hydraulic cylinder 3, the upper mold 4 can be easily moved up and down.

[0029] Reference Figure 2 and Figure 3 The first heat exchange groove 601 is formed on the surface of the lower mold 2, and the second heat exchange groove 607 is formed on the surface of the upper mold 4. One end of the conveying pipe 602 is connected to the left side of the lower mold 2 and the upper mold 4 respectively. Through the setting of the first heat exchange groove 601 and the second heat exchange groove 607, water cooling can be performed on the upper mold 4 and the lower mold 2, thereby improving the heat dissipation effect of the upper mold 4 and the lower mold 2.

[0030] Reference Figure 2 and Figure 3 The lower mold 2 and the upper mold 4 are fixedly connected to the liquid outlet pipe 603 on the right side. One end of the spring 604 is fixedly connected to the connection of the lower mold 2. With the setting of the spring 604, when the upper mold 4 and the lower mold 2 are injection molded, the spring 604 is reset. Under the action of the top block 606, the object is popped out, making it convenient for the staff to remove it.

[0031] Reference Figure 2 and Figure 3Guide rods 605 are fixedly installed on both the left and right sides of the bottom of the top block 606. The top of the guide rod 605 passes through the top block 606 and is slidably connected to the connection of the top block 606. The guide rod 605 plays a guiding role and can guide the vertical displacement of the top block 606 to prevent the top block 606 from moving randomly.

[0032] Reference Figure 2 and Figure 4 The bottom of the liquid storage tank 801 is fixedly connected to the top of the fixed plate 7. The first auxiliary pipe 806 and the second auxiliary pipe 811 are both connected to the delivery pipe 602. The left and right sides of the top of the liquid storage tank 801 are fixedly installed with inlet pipes 802. The liquid storage tank 801 can be separated by the partition plate 803, so as to facilitate the storage of two different liquids and facilitate subsequent use.

[0033] Reference Figure 2 and Figure 4 The infusion pump 804 is fixedly installed with a first three-way valve 805. The left and right sides of the first three-way valve 805 are respectively connected to a first connecting pipe 807 and a second connecting pipe 808. The ends of the first connecting pipe 807 and the second connecting pipe 808 away from the first three-way valve 805 pass through the inner cavity of the storage tank 801. By setting a reinforcing plate 809, an installation position can be provided for the infusion pump 804, so that the installation position of the infusion pump 804 is stable.

[0034] Reference Figure 2 and Figure 4 The outlet end of the infusion pump 804 is fixedly equipped with a second three-way valve 810. The left and right ends of the second three-way valve 810 are connected to the first auxiliary pipe 806 and the second auxiliary pipe 811, respectively. The setting of the first three-way valve 805 and the second three-way valve 810 facilitates the connection and use of multiple pipes.

[0035] Working principle: All components are in their initial state. The hydraulic cylinder 3 is controlled to operate, and its output drives the upper mold 4 and protrusion 5 downwards until they are in close contact with the lower mold 2 for injection molding. The spring 604 is compressed. After injection molding, when the upper mold 4 and lower mold 2 separate, the spring 604 resets. Under the action of the top block 606, the object is ejected, making it easy for workers to remove. When water cooling is required for the upper mold 4 and lower mold 2, liquid and rust remover are injected into the left and right sides of the inner cavity of the liquid tank 801 through the liquid inlet pipe 802. The infusion pump 804 is controlled to operate, opening the first connecting pipe 807 on the surface of the first three-way valve 805 and closing the second connecting pipe 808. The connecting pipe 807 draws out the liquid from the left side of the inner cavity of the liquid storage tank 801, and then transports the liquid through the first auxiliary pipe 806 and the second auxiliary pipe 811 to the first heat exchange tank 601 and the second heat exchange tank 607 via the conveying pipe 602 to cool the lower mold 2 and the upper mold 4. During long-term use, the lower mold 2 and the upper mold 4 will develop water rust. When it is necessary to remove the rust from the lower mold 2 and the upper mold 4, the first connecting pipe 807 on the surface of the first three-way valve 805 is closed, and the second connecting pipe 808 is opened to transport the rust remover on the right side of the liquid storage tank 801 to the first heat exchange tank 601 and the second heat exchange tank 607 to remove the rust from the lower mold 2 and the upper mold 4, thereby improving the overall performance. The liquid after use can be discharged through the liquid outlet pipe 603.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A calender die structure for adjustable thickness polyester film comprising a housing (1) characterised in that: A lower mold (2) is fixedly installed at the bottom of the inner cavity of the box (1), an upper mold (4) is installed at the top of the inner cavity of the box (1), a hydraulic cylinder (3) is bolted at the center of the top of the box (1), a protrusion (5) is fixedly installed at the bottom of the upper mold (4), a heat dissipation ejection assembly (6) is installed on the surface of both the lower mold (2) and the upper mold (4), a fixing plate (7) is fixedly connected to the left side of the box (1), and a liquid injection rust removal assembly (8) is installed on the top of the fixing plate (7); The liquid injection rust removal assembly (8) includes a liquid storage tank (801), a first auxiliary pipe (806) and a second auxiliary pipe (811). The inner cavity of the liquid storage tank (801) is fixedly connected to a partition plate (803). A reinforcing plate (809) is fixedly installed at the bottom of the fixed plate (7). An infusion pump (804) is bolted to the surface of the reinforcing plate (809).

2. A thickness adjustable polyester film calender die structure according to claim 1, characterized in that: The heat dissipation ejection assembly (6) includes a first heat exchange tank (601), a conveying pipe (602), and a second heat exchange tank (607). A spring (604) is installed inside the lower mold (2), and a top block (606) is fixedly installed at the other end of the spring (604).

3. A thickness adjustable polyester film calender die structure according to claim 1, wherein: The output end of the hydraulic cylinder (3) extends into the inner cavity of the housing (1), and the output end of the hydraulic cylinder (3) is fixedly connected to the upper mold (4).

4. A thickness adjustable polyester film calender die structure according to claim 2, wherein: The first heat exchange tank (601) is opened on the surface of the lower mold (2), the second heat exchange tank (607) is opened on the surface of the upper mold (4), and one end of the conveying pipe (602) is connected to the left side of the lower mold (2) and the upper mold (4) respectively.

5. A thickness adjustable polyester film calender die structure according to claim 2, wherein: The lower mold (2) is fixedly connected to the right side of the upper mold (4) by a liquid outlet pipe (603), and one end of the spring (604) is fixedly connected to the connection point of the lower mold (2).

6. A thickness adjustable polyester film calender die structure according to claim 2, wherein: Guide rods (605) are fixedly installed on both the left and right sides of the bottom of the top block (606). The top of the guide rod (605) passes through the top block (606) and is slidably connected to the connection of the top block (606).

7. The adjustable thickness polyester film calendering die structure according to claim 1, characterized in that: The bottom of the liquid storage tank (801) is fixedly connected to the top of the fixing plate (7). The first auxiliary pipe (806) and the second auxiliary pipe (811) are both connected to the delivery pipe (602). The left and right sides of the top of the liquid storage tank (801) are fixedly installed with inlet pipes (802).

8. The thickness-adjustable polyester film calender die structure according to claim 1, characterized in that: The infusion pump (804) is fixedly equipped with a first three-way valve (805) at its inlet end. The first three-way valve (805) is connected to a first connecting pipe (807) and a second connecting pipe (808) on its left and right sides, respectively. The ends of the first connecting pipe (807) and the second connecting pipe (808) away from the first three-way valve (805) extend into the inner cavity of the storage tank (801).

9. The thickness-adjustable polyester film calender die structure according to claim 1, characterized in that: The outlet end of the infusion pump (804) is fixedly equipped with a second three-way valve (810), and the left and right ends of the second three-way valve (810) are respectively connected to the first auxiliary pipe (806) and the second auxiliary pipe (811).

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