Bubble removing equipment for plastic calender

Abstract

The utility model is suitable for the technical field of medical instruments, and provides bubble removing equipment for a plastic calender, which comprises a bubble removing mechanism, the defoaming mechanism comprises a preheating defoaming assembly and a secondary rolling assembly; the preheating and defoaming assembly comprises a preheating box; the two longitudinal screw rod sliding tables are arranged on the inner wall of the preheating box; a transverse lead screw sliding table is arranged between the moving ends of the two longitudinal lead screw sliding tables. The bottom side hydraulic rod is arranged at the moving end of the transverse lead screw sliding table; the reset spring is arranged at the output end of the hydraulic rod, and a bubble removing needle is arranged on the bottom side of the reset spring; plastic sheets are uniformly heated through the preheating and defoaming assembly, so that the flowability of the plastic sheets is improved, and bubbles are promoted to escape; the bubble removing needle is slowly and stably inserted into the plastic sheet, so that the bubble removing efficiency and effect are improved, and the quality and performance of a plastic product are also remarkably improved; the secondary flattening assembly realizes accurate control on the pressing plate, and ensures that uniform and stable pressure is applied to the plastic sheet; and subsequent processing and product performance are facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to a bubble removal device for a plastic calender. Background Technology

[0002] In the manufacturing process of plastic products, air bubbles are a common problem that can affect the appearance and performance of the products. To solve this problem, various air bubble removal devices and technologies have been developed.

[0003] Traditional bubble removal equipment uses high temperature and pressure to make bubbles escape and flatten them; however, these devices usually suffer from problems such as incomplete bubble removal, low efficiency, and unstable product quality. Utility Model Content

[0004] This invention provides a bubble removal device for a plastic calender, aiming to solve the problem that traditional bubble removal devices use high temperature and pressure to make bubbles escape and be flattened; however, these devices usually suffer from incomplete bubble removal, low efficiency, and unstable product quality.

[0005] This utility model is implemented as follows: a bubble removal device for a plastic calendering machine includes a machine base and a calendering box; a defoaming mechanism is provided on the side of the machine base adjacent to the discharge port of the calendering box; the defoaming mechanism includes a preheating defoaming component and a secondary calendering component; wherein, the preheating defoaming component includes: a preheating box disposed above the machine base; a set of heating blocks symmetrically disposed on the inner wall of the preheating box; a preheating fan disposed on one inner wall of the preheating box; and two longitudinal lead screw slides symmetrically disposed on the inner wall of the preheating box; a same transverse lead screw slide is fixedly connected between the moving ends of the two longitudinal lead screw slides; a hydraulic rod is disposed on the bottom side of the moving end of the transverse lead screw slide; a return spring is disposed on the output end of the hydraulic rod, and a damper is disposed inside the return spring; a defoaming needle is fixedly connected to the end of the return spring away from the transverse lead screw slide.

[0006] Preferably, the secondary pressing assembly includes: a reprocessing box disposed next to the preheating box; a connecting plate sliding in the inner cavity of the reprocessing box; a driving cylinder disposed on the top of the reprocessing box, the output end of the driving cylinder being fixedly connected to the end of the connecting plate; and a pressure plate disposed on the bottom side of the connecting plate.

[0007] Preferably, the secondary pressing assembly further includes a set of cooling fans symmetrically arranged on the inner wall of the reprocessing box, with an airflow channel for heat dissipation formed between the two cooling fans.

[0008] Preferably, temperature sensors are installed inside both the preheating box and the reprocessing box; a display screen is installed on the outside of the calendering box, and a controller is installed inside the display screen, which is electrically connected to the two temperature sensors.

[0009] Preferably, the calendering box, preheating box, and reprocessing box are arranged horizontally on the machine base in sequence according to the processing order.

[0010] Preferably, the base is provided with shock-absorbing feet on its bottom side.

[0011] Compared with the prior art, the embodiments of this application have the following main advantages:

[0012] Firstly, by setting up a preheating defoaming component, efficient, stable, and precise bubble removal is achieved. The heating blocks and preheating fans in the preheating chamber work together to ensure that the plastic sheet is heated evenly and to increase its fluidity, thus facilitating the escape of bubbles from the plastic. At the same time, the motors of the horizontal and vertical lead screw slides drive the defoaming needles to slowly and steadily insert into the plastic sheet, avoiding air entrapment and bubble formation caused by rapid insertion. The return spring maintains a certain pressure after the defoaming needle is pulled out, further preventing the reformation of bubbles. This not only improves the efficiency and effectiveness of bubble removal but also significantly enhances the quality and performance of plastic products.

[0013] Secondly, by setting up a secondary flattening component, further flattening and bubble removal of the plastic sheet are achieved; the drive cylinder achieves precise control of the pressure plate through the connecting plate, ensuring that uniform and stable pressure is applied to the plastic sheet; this precise control not only helps to improve the flattening effect, but also helps to remove residual bubbles; the airflow generated by the cooling fan accelerates heat exchange, allowing the plastic sheet to cool down quickly; rapid cooling enables the plastic surface to solidify rapidly, preventing bubbles from reforming or becoming trapped in the plastic during the cooling process; this rapid cooling also helps to make the plastic sheet harder and smoother, which is beneficial to subsequent processing and the performance of the finished product. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the connection structure between the longitudinal lead screw slide and the transverse lead screw slide of this utility model;

[0016] Figure 3 This is a schematic diagram of the front structure of the preheating box of this utility model;

[0017] Figure 4 This is a schematic diagram of the front structure of the reprocessing box of this utility model;

[0018] In the diagram: 1. Machine base; 2. Pressing box; 301. Preheating box; 302. Heating block; 303. Preheating fan; 304. Longitudinal lead screw slide; 305. Transverse lead screw slide; 306. Return spring; 307. De-bubbling needle; 308. Hydraulic rod; 401. Reprocessing box; 402. Connecting plate; 403. Drive cylinder; 404. Pressure plate; 405. Cooling fan; 5. Display screen; 6. Vibration damping feet. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a bubble removal device for a plastic calender, such as... Figure 1-4 As shown, the system includes a base 1 and a calendering chamber 2. A defoaming mechanism is provided on the side of the base 1 adjacent to the discharge port of the calendering chamber 2. The defoaming mechanism includes a preheating defoaming component and a secondary calendering component. The preheating defoaming component includes: a preheating chamber 301 disposed above the base 1; a set of heating blocks 302 symmetrically disposed on the inner wall of the preheating chamber 301; a preheating fan 303 disposed on one inner wall of the preheating chamber 301; and two longitudinal lead screw slides 304 symmetrically disposed on the inner wall of the preheating chamber 301. A transverse lead screw slide 305 is fixedly connected between the moving ends of the two longitudinal lead screw slides 304; a hydraulic rod 308 is disposed on the bottom side of the moving end of the transverse lead screw slide 305; a return spring 306 is disposed on the output end of the hydraulic rod 308, and a damper is disposed inside the return spring 306; a defoaming needle 307 is fixedly connected to the end of the return spring 306 away from the transverse lead screw slide 305.

[0022] It should be noted that traditional bubble removal equipment uses high temperature and pressure to expel and flatten bubbles; however, these devices often suffer from incomplete bubble removal, low efficiency, and unstable product quality. This solution addresses these issues by using a preheating defoaming component that uniformly heats the plastic sheet via heating block 302 and preheating fan 303, increasing its fluidity and promoting bubble expulsion. Simultaneously, the motors driving the horizontal and vertical lead screw slides 304 slowly and steadily insert the defoaming needles 307 into the plastic sheet, avoiding air entrapment and bubble formation caused by rapid insertion. A return spring 306 maintains a certain pressure after the defoaming needles 307 are withdrawn, preventing bubble reformation. This design not only improves the efficiency and effectiveness of bubble removal but also significantly enhances the quality and performance of the plastic products. The secondary leveling component uses a drive cylinder 403 to precisely control the pressure plate 404, ensuring uniform and stable pressure on the plastic sheet. The airflow generated by the cooling fan 405 accelerates heat exchange, rapidly cooling the plastic sheet and quickly solidifying its surface. This rapid cooling makes the plastic sheet harder and smoother, which is beneficial for subsequent processing and product performance.

[0023] Specifically, in this embodiment, the solution mainly includes a defoaming mechanism; the defoaming mechanism includes a preheating defoaming component and a secondary calendering component; the preheating defoaming component includes a preheating box 301 disposed above the machine base 1; the calendered plastic sheet enters the preheating box 301, the heating block 302 heats the plastic sheet in the preheating box 301, and the preheating fan 303 accelerates the heat exchange between the plastic sheet and the heating block 302, so that the plastic sheet is heated evenly; increasing the fluidity of the plastic and promoting the escape of bubbles from the plastic; two longitudinal lead screw slides 30 The motor of the 4-axis drives the moving end of the transverse lead screw slide 305 to move longitudinally and horizontally. The motor of the transverse lead screw slide 305 drives its moving end to move the hydraulic rod 308 laterally and horizontally. The hydraulic rod 308 drives the return spring 306 to adjust the height, so that the de-bubbling needle 307 can be slowly and stably inserted into the plastic sheet during the calendering process, avoiding air entrapment and bubble formation caused by rapid insertion. At the same time, the return spring 306 can maintain a certain pressure on the calendered plastic sheet after the de-bubbling needle 307 is pulled out, preventing bubbles from reforming.

[0024] In a further preferred embodiment of this utility model, such as Figure 1-4 As shown, the secondary pressing assembly includes: a reprocessing box 401 disposed beside the preheating box 301; a connecting plate 402 sliding within the cavity of the reprocessing box 401; a driving cylinder 403 disposed on the top of the reprocessing box 401, the output end of the driving cylinder 403 being fixedly connected to the end of the connecting plate 402 by a key; and a pressure plate 404 disposed on the bottom side of the connecting plate 402.

[0025] In this embodiment, the plastic sheet after bubble removal enters the reprocessing box 401. The drive cylinder 403 achieves precise control of the pressure plate 404 through the connecting plate 402. When the drive cylinder 403 drives the connecting plate 402, the bottom pressure plate 404 of the connecting plate 402 will apply pressure to the plastic sheet, further pressing the plastic sheet and removing bubbles.

[0026] In a further preferred embodiment of this utility model, such as Figure 1-4 As shown, the secondary pressing assembly further includes a set of cooling fans 405 symmetrically arranged on the inner wall of the reprocessing box 401, with an airflow channel for heat dissipation formed between the two cooling fans 405.

[0027] In this embodiment, the airflow generated by the cooling fan 405 can also accelerate heat exchange, and the rapid cooling of the plastic sheet can quickly solidify its surface, preventing bubbles from reforming or being trapped in the plastic during the cooling process; rapid cooling can also make the plastic sheet harder and smoother, which is beneficial to subsequent processing and the performance of the product.

[0028] In a further preferred embodiment of this utility model, such as Figure 1-4 As shown, temperature sensors are installed inside both the preheating box 301 and the reprocessing box 401; a display screen 5 is installed on the outside of the calendering box 2, and a controller is installed inside the display screen 5. The controller is electrically connected to the two temperature sensors.

[0029] In this embodiment, temperature sensors (DS18B20) are placed inside the preheating chamber 301 and the reprocessing chamber 401 to monitor the temperature in these two areas in real time. These sensors transmit temperature data to the controller (STM32) in the form of electrical signals, allowing the operator to intuitively understand the temperature conditions inside the preheating chamber 301 and the reprocessing chamber 401 through the display screen 5, and adjust and control the temperature as needed.

[0030] In a further preferred embodiment of this utility model, such as Figure 1 As shown, the calendering box 2, the preheating box 301 and the reprocessing box 401 are arranged horizontally on the machine base 1 in sequence according to the processing order.

[0031] In this embodiment, the three components are arranged horizontally on the base 1 in the order of processing, which means that after the material enters the equipment, it will be processed in the order of calendering, preheating and reprocessing.

[0032] In a further preferred embodiment of this utility model, such as Figure 1 As shown, a shock-absorbing bracket 6 is provided on the bottom side of the base 1.

[0033] In this embodiment, the shock-absorbing feet 6 enable the equipment to operate more stably, reducing errors and malfunctions caused by vibration.

[0034] Working Principle: In operation, the calendered plastic sheet enters the preheating chamber 301. The heating block 302 heats the plastic sheet within the chamber, while the preheating fan 303 accelerates heat exchange between the plastic sheet and the heating block 302, ensuring uniform heating and increasing the plastic's fluidity, thus facilitating the escape of air bubbles. The motors of the two longitudinal lead screw slides 304 drive the moving end of the transverse lead screw slide 305 to move longitudinally horizontally. The motor of the transverse lead screw slide 305 drives its moving end to move the hydraulic rod 308 laterally horizontally. The hydraulic rod 308 drives the return spring 306 for height adjustment, allowing the de-bubbling needle 307 to be inserted slowly and stably into the plastic sheet during the calendering process, preventing air entrapment and bubble formation caused by rapid insertion. Simultaneously, the return spring 306 maintains a certain pressure on the calendered plastic sheet after the de-bubbling needle 307 is removed, preventing the reformation of air bubbles.

[0035] The plastic sheet after the air bubbles have been removed enters the reprocessing box 401. The drive cylinder 403 achieves precise control of the pressure plate 404 through the connecting plate 402. When the drive cylinder 403 drives the connecting plate 402, the bottom pressure plate 404 of the connecting plate 402 will apply pressure to the plastic sheet, further pressing the plastic sheet and removing air bubbles.

[0036] The airflow generated by the cooling fan 405 can also accelerate heat exchange, rapidly cooling the plastic sheet and causing its surface to solidify quickly, preventing bubbles from reforming or becoming trapped in the plastic during the cooling process; rapid cooling can also make the plastic sheet harder and smoother, which is beneficial for subsequent processing and the performance of the product.

[0037] Temperature sensors are placed inside the preheating chamber 301 and the reprocessing chamber 401 to monitor the temperature in these two areas in real time. These sensors transmit temperature data to the controller in the form of electrical signals, allowing the operator to intuitively understand the temperature conditions inside the preheating chamber 301 and the reprocessing chamber 401 through the display screen 5, and adjust and control the temperature as needed.

[0038] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0039] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0040] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A bubble removing apparatus for a plastic calender, characterized by comprising: Include: The machine base and the extension pressure box; The machine base is provided with a bubble removing mechanism adjacent to one side of the extension pressure box discharge port; The bubble removing mechanism includes a preheating bubble removing assembly and a secondary extension pressure assembly; The preheating bubble removing assembly includes: A preheating box arranged above the machine base; A set of heating blocks symmetrically arranged on the inner wall of the preheating box; A preheating fan arranged on the inner wall of one side of the preheating box; and Two longitudinal screw slides symmetrically arranged on the inner wall of the preheating box; The moving ends of the two longitudinal screw slides are fixedly connected with the same horizontal screw slide; A hydraulic rod arranged on the bottom side of the moving end of the horizontal screw slide; A reset spring arranged on the output end of the hydraulic rod, the reset spring is provided with a damper inside; The end of the reset spring away from the horizontal screw slide is fixedly connected with a bubble removing needle.

2. A bubble removal apparatus for a plastic stretch press as claimed in claim 1, wherein, The secondary extension pressure assembly includes: A reprocessing box arranged beside the preheating box; A connecting plate sliding in the inner cavity of the reprocessing box; A drive cylinder arranged on the top of the reprocessing box, the output end of the drive cylinder is fixedly connected with the end of the connecting plate by keying; A pressing plate arranged on the bottom side of the connecting plate.

3. A bubble removal apparatus for a plastic stretch press as defined in claim 2, wherein The secondary extension pressure assembly further includes: A set of cold air fans symmetrically arranged on the inner wall of the reprocessing box, the two cold air fans form an air flow channel for heat dissipation.

4. A bubble removal apparatus for a plastic stretch press as defined in claim 3, wherein Temperature sensors are arranged in the preheating box and the reprocessing box; a display screen is arranged on the outside of the extension pressure box, the display screen is provided with a controller, and the controller is electrically connected with the two temperature sensors.

5. A bubble removal apparatus for a plastic stretch-press machine as defined in claim 4, wherein The extension pressure box, the preheating box and the reprocessing box are arranged on the machine base in sequence according to the processing sequence.

6. A bubble removal apparatus for a plastic stretch press as claimed in claim 5, wherein, The bottom side of the machine base is provided with a shock absorbing foot stand.

Images