Unreeling platform and PVC composite coiled material production device

Abstract

The utility model is applicable to the technical field of film production and processing equipment, and discloses an unwinding platform and a PVC (polyvinyl chloride) composite coiled material production device, the unwinding platform comprises a platform, an unwinding assembly, a first structural frame, a second structural frame, an air guide pipe, a cold air conveying pipe and a dustproof cushion; the air guide pipe is connected with a screw refrigerator; the dustproof soft cushions are fixedly arranged on the outer sides of the first structural frame and the second structural frame. The air guide pipe is fixedly installed on the first structure frame above the platform and connected with the cold air conveying pipes, the cold air conveying pipes penetrate through the first structure frame downwards, and therefore cold air can be conveyed to the position above the platform through cooperation of the air guide pipe and the cold air conveying pipes. Therefore, the high temperature which is upwards transmitted to the platform area during operation of the laminating assembly is reduced, the platform operation environment is improved, the situation that operation comfort and body health are affected by the high temperature during operation such as coiled material replacement of production personnel is avoided, and the problem that an existing unwinding platform lacks sunstroke prevention measures is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of film production and processing equipment technology, and in particular to an unwinding platform and a PVC composite roll production device. Background Technology

[0002] Polyvinyl chloride (PVC) roll materials encompass several categories, including PVC film, PVC wallpaper, and PVC flooring. Within this category, PVC flooring, with its numerous advantages, has become a widely used lightweight floor covering material globally. PVC flooring boasts a bright and elegant appearance, offering outstanding decorative effects; it also possesses strong wear resistance, enduring wear and tear over long-term use; it exhibits excellent stain resistance, facilitating daily cleaning and maintenance; furthermore, its good anti-slip properties effectively enhance safety during use.

[0003] Chinese patent document CN202311519937.5 discloses a production apparatus for PVC composite rolls used in the production of PVC flooring. The apparatus includes a base layer unwinding assembly, a bonding assembly, a cooling assembly, a width-fixing slitting assembly, a winding assembly, and a color film unwinding assembly and a wear-resistant layer unwinding assembly arranged sequentially along the base layer moving direction.

[0004] The bonding assembly includes bonding rollers, heating rollers, and pressure rollers. However, during production, the bonding area where the bonding assembly is located generates high temperatures, which are then transferred upwards to the unwinding platform for the color film and abrasion-resistant layer above the bonding assembly. When replacing the color film and abrasion-resistant roll material, production personnel on the unwinding platform must endure high temperatures, which not only significantly impacts their operational comfort but also poses a threat to their health. Utility Model Content

[0005] The purpose of this utility model is to provide an unwinding platform and a PVC composite roll production device, which aims to solve the problem that the unwinding platform of the existing PVC composite roll production device does not have heat protection measures.

[0006] To achieve the above objectives, the solution provided by this utility model is as follows:

[0007] An unwinding platform includes a platform and multiple unwinding components arranged side by side on the platform; a first structural frame is horizontally arranged above the platform, and a second structural frame is fixedly arranged around the platform on the vertical side of the platform; the upper side of the second structural frame is fixedly connected to the first structural frame.

[0008] An air duct is fixedly installed on the first structural frame, and the air duct is connected to multiple cold air delivery pipes; the cold air delivery pipes pass downward through the first structural frame, and the cold air outlet of the cold air delivery pipes is located above the platform.

[0009] Dustproof pads are fixedly provided on the outer sides of both the first and second structural frames.

[0010] Optionally, the cold air delivery pipe passes vertically downward through the first structural frame, and the cold air outlet of the cold air delivery pipe is detachably connected to a filter assembly.

[0011] Optionally, a track is fixedly connected to the lower side of the first structural frame; the track is arranged along the length of the platform, and an electric hoist is provided on the track and movably connected to the track; the electric hoist is connected to a roll material lifting device via a hook;

[0012] The track passes horizontally through the second structural frame and extends to the outside of the second structural frame, which has an opening for the roll material lifting device to pass through.

[0013] Optionally, the roll material lifting device includes a load-bearing crossbeam, an inverted V-shaped hanging rod fixedly connected to the upper side of the load-bearing crossbeam, and a U-shaped limiting part fixedly installed on the upper side of both ends of the load-bearing crossbeam; a hanging strap located inside the U-shaped limiting part is sleeved on the load-bearing crossbeam.

[0014] Optionally, the roll material lifting device may also include multiple structural reinforcing rods, both ends of which are fixedly connected to the load-bearing crossbeam and the hanging rod.

[0015] Optionally, the platform is provided with a roll material feeding port below the unwinding assembly: each unwinding assembly includes two unwinding frames disposed opposite each other on both sides of the roll material feeding port; the unwinding frame is provided with a bearing seat, and the bearing seat is provided with an upward-opening U-shaped groove; the U-shaped groove cooperates with the roll shaft; an arc-shaped stop is provided on the side of the bearing seat away from the roll shaft, and the arc-shaped stop is located in the U-shaped groove.

[0016] Optionally, two limiting rollers are fixedly mounted above the roll material conveying port. The length direction of the limiting rollers is consistent with the length direction of the roll material conveying port, and a roll material conveying channel is formed between the two limiting rollers.

[0017] The second aspect of this utility model also provides a PVC composite roll production device, including the aforementioned unwinding platform.

[0018] Beneficial effects:

[0019] The first aspect of this utility model provides an unwinding platform for the production of PVC composite rolls. By fixing and installing air guide pipes on a first structural frame above the platform, and connecting the air guide pipes to multiple cold air delivery pipes, which pass downward through the first structural frame, cold air can be delivered to the top of the platform through the cooperation of the air guide pipes and the cold air delivery pipes. This reduces the high temperature transmitted upward to the platform area during the bonding of components, improves the platform working environment, and avoids the impact of high temperature on the operating comfort and health of production personnel during operations such as changing rolls. This effectively solves the problem of the lack of heatstroke prevention measures in existing unwinding platforms.

[0020] Furthermore, by fixing dustproof pads to the outside of the first and second structural frames, this invention effectively prevents external dust from falling onto the surface of the roll material on the unwinding assembly, thus preventing dust from affecting the quality of the roll material. Simultaneously, the dustproof pads ensure the cleanliness of the platform environment during cold air delivery, preventing dust from being carried by the airflow and affecting the quality of the roll material when the cold air cools the platform, thereby improving the quality of the PVC composite roll material product.

[0021] A second aspect of this invention also provides a PVC composite roll production apparatus, including the aforementioned unwinding platform. This PVC composite roll production apparatus achieves stable unwinding and conveying of the roll material through the unwinding platform, improving the working environment and ensuring production quality and efficiency. Attached Figure Description

[0022] 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 the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the unwinding platform provided by this utility model. Figure 1 .

[0024] Figure 2 yes Figure 1 Enlarged view of section A.

[0025] Figure 3 This is a schematic diagram of the structure of the unwinding platform provided by this utility model. Figure 2 .

[0026] Figure 4 This is a schematic diagram of the structure of the unwinding platform provided by this utility model. Figure 3 .

[0027] Figure 5 This is a schematic diagram of the structure of the cold air delivery pipe.

[0028] Figure 6 This is a structural schematic diagram of the coil lifting device.

[0029] Figure 7 This is a schematic diagram of the unwinding assembly.

[0030] Figure 8 yes Figure 7 Enlarged view of section B.

[0031] Figure 9 yes Figure 7 Enlarged view of section C.

[0032] Explanation of icon numbers:

[0033] 1-Platform; 101-Roll material conveyor port;

[0034] 2-Unwinding assembly; 21-Unwinding frame; 22-Bearing seat; 221-U-groove; 222-Arc-shaped stop;

[0035] 3-First structural frame; 4-Second structural frame; 41-Opening; 5-Air duct; 6-Cold air delivery duct; 7-Dustproof pad; 8-Filter assembly; 9-Railway; 10-Electric hoist; 11-Hook;

[0036] 12-Roll material lifting device; 121-Load-bearing crossbeam; 122-Hanging rod; 123-U-shaped limiting part; 124-Hanging strap; 125-Structural reinforcing rod; 13-Roll; 14-Limiting roller; 15-Film conveying channel; 16-Roll material; 17-Escalator; 18-Handrail. Detailed Implementation

[0037] 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.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0040] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0041] Please see Figures 1 to 9 This utility model provides an unwinding platform that can be set above the bonding component of an existing PVC composite roll production device. It can be used to release the colored film and wear-resistant roll 16 to the bonding component below, so that the PVC base layer, colored film and wear-resistant roll 16 can be bonded together with each other by means of the bonding component during production to obtain PVC flooring or other types of PVC composite roll products.

[0042] Specifically, the unwinding platform includes a platform 1 and multiple unwinding assemblies 2 arranged side-by-side on the platform 1. A roll of material 16, pre-wound by a reel 13, is placed on each unwinding assembly 2. During production, the bonding roller of the bonding assembly is driven by a motor, providing power for the traction of the roll of material 16, allowing the roll of material 16 on the unwinding assembly 2 to be released and pulled onto the bonding roller. Furthermore, a first structural frame 3 is horizontally arranged above the platform 1, and a second structural frame 4 is fixedly arranged around the platform 1 on its vertical side; both the first structural frame 3 and the second structural frame 4 can be steel structural frames. The upper side of the second structural frame 4 is fixedly connected to the first structural frame 3, for example, by welding the upper and lower sides of the second structural frame 4 to the first structural frame 3 and the platform 1 respectively.

[0043] Furthermore, an air duct 5 is fixedly welded to the first structural frame 3, and the air duct 5 is connected to multiple cold air delivery pipes 6. The cold air delivery pipes 6 pass downward through the first structural frame 3, and the cold air outlet of the cold air delivery pipe 6 is located above the platform 1. The air duct 5 is connected to a screw chiller. The screw chiller can be a screw chiller unit (model 30HXY / HXC), which can be used for cooling industrial plants. The cold air generated during its operation can be delivered to each cold air delivery pipe 6 through the air duct 5, and then the cold air outlet of the cold air delivery pipe 6 delivers the cold air to the top of the platform 1. This reduces the high temperature transmitted upward to the platform 1 area during the bonding component operation, improves the working environment of the platform 1, and avoids the impact of high temperature on the comfort and health of production personnel during operations such as changing the roll material 16. This effectively solves the problem that the existing unwinding platform does not have heatstroke prevention measures.

[0044] Furthermore, dustproof pads 7 are fixedly installed on the outer sides of both the first structural frame 3 and the second structural frame 4. Multiple dustproof pads 7 are provided and can be fixed to the first structural frame 3 and the second structural frame 4 with screws. The dustproof pads 7 effectively prevent external dust from falling onto the surface of the roll 16 on the unwinding assembly 2, avoiding any impact on the quality of the roll 16 due to dust adhesion. Moreover, since the dustproof pads 7 ensure the cleanliness of the platform 1 environment during cold air conveying, the cold air cools the platform 1 without affecting the quality of the roll 16 due to dust carried by the airflow, thus improving the quality of the PVC composite roll product.

[0045] Specifically, the dustproof pad 7 can be made of transparent PVC, which can be directly sourced from the manufacturer of the PVC composite roll 16, thus enabling the recycling of internal resources.

[0046] like Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, in an optional embodiment, the cold air delivery pipe 6 passes vertically downward through the first structural frame 3, and the cold air outlet of the cold air delivery pipe 6 is detachably connected to a filter assembly 8. The filter assembly 8 can filter the cold air delivered by the cold air delivery pipe 6, intercepting fine dust, impurities, etc., that may be present in the air, preventing these pollutants from being blown onto the surface of the roll material 16 on the platform 1, further ensuring the cleanliness of the production environment of the roll material 16, and reducing quality problems of the roll material 16 caused by the adhesion of pollutants. At the same time, since the filter assembly 8 is detachably connected, when the filter assembly 8 becomes clogged or its filtration effect decreases due to long-term use, it is convenient for production personnel to disassemble it in time for cleaning or replacement, ensuring the continuous effectiveness of the filter assembly 8 and not interfering with the normal air delivery of the cold air delivery pipe 6.

[0047] As an example, the filter assembly 8 can be quickly installed and removed using a snap-fit ​​connection. For instance, a flexible snap-fit ​​can be installed at the cold air outlet of the cold air delivery pipe 6, and a slot that mates with the flexible snap-fit ​​can be provided on the filter assembly's frame. This allows for quick installation and removal of the filter assembly 8 through the interaction of the flexible snap-fit ​​and the slot, facilitating regular cleaning and replacement of the filter assembly 8 by production personnel.

[0048] like Figure 1 and Figure 4 As shown, in an optional embodiment, a track 9 is fixedly connected to the lower side of the first structural frame 3; the track 9 is arranged along the length direction of the platform 1, and an electric hoist 10 is movably connected to the track 9; the electric hoist 10 is connected to a roll material lifting device 12 via a hook 11. In this embodiment, the electric hoist 10 can move along the track 9, and in conjunction with the use of the roll material lifting device 12 below, it can conveniently lift, transport, and replace the roll material 16 on the platform 1 without manual handling of the roll material 16. This not only reduces the labor intensity of workers and improves the efficiency of loading, unloading, and replacing the roll material 16, but also reduces the damage that may be caused to the roll material 16 during manual handling. At the same time, through the guiding effect of the track 9, the roll material lifting device 12 can accurately place the roll material 16 at the designated unwinding component 2 position, ensuring the orderly progress of the unwinding operation.

[0049] In order to improve the structural strength of the first structural frame 3 and the track 9 and their ability to support the electric hoist 10, in an optional embodiment, high-strength bolts can be used to fasten the track 9 to the lower side of the first structural frame 3 in multiple ways. At the same time, reinforcing ribs are added at the connection between the track 9 and the first structural frame 3. This can enhance the structural strength and connection stability of the first structural frame 3 and the track 9, provide more reliable support for the electric hoist 10, and reduce the risk of the electric hoist 10 falling due to insufficient structural strength.

[0050] like Figure 6As shown, in an optional embodiment, the roll lifting device 12 includes a load-bearing crossbeam 121, a hanging rod 122 in the shape of an inverted V and fixedly connected to the upper side of the load-bearing crossbeam 121, and a U-shaped limiting part 123 fixedly disposed on the upper side of both ends of the load-bearing crossbeam 121; a hanging strap 124 located in the U-shaped limiting part 123 is sleeved on the load-bearing crossbeam 121, and the hanging strap 124 is used to lift both sides of the roll 13. In this embodiment, the load-bearing crossbeam 121 serves as the core load-bearing component. It is fixedly connected to the inverted V-shaped hanging rod 122, which can stably bear the lifting force transmitted by the electric hoist 10, improve the load-bearing stability of the roll material lifting device 12, and reduce the safety hazards during the lifting of the roll material 16. The U-shaped limiting part 123 is formed by the load-bearing crossbeam 121 and two limiting plates vertically arranged on the load-bearing crossbeam 121. It can limit the hanging strap 124 sleeved on the load-bearing crossbeam 121, preventing the hanging strap 124 from moving along the load-bearing crossbeam 121 and detaching from the load-bearing crossbeam 121 during the lifting process. This can prevent the roll material 16 from falling, ensure the stable progress of the lifting operation, and thus improve the efficiency and safety of loading, unloading and replacing the roll material 16.

[0051] like Figure 3 and Figure 4 As shown, in an optional embodiment, the track 9 horizontally passes through the second structural frame 4 and extends to the outside of the second structural frame 4. The portion of the track 9 located outside the second structural frame 4 can be fixedly connected to the top of the workshop via a hoisting keel. The second structural frame 4 is provided with an opening 41 for the coil lifting device 12 to pass through. When the track 9 horizontally passes through the second structural frame 4 and extends to its outside, it can expand the working range of the electric hoist 10 and the coil lifting device, facilitating the hoisting of the coil 16 from outside the workshop or other areas and its transport to the platform 1. This achieves efficient transfer of the coil 16 from the outside to the unwinding assembly 2 on the platform 1, which not only reduces the labor intensity of manually handling the coil 16, but also improves the efficiency and safety of loading, unloading, and replacing the coil 16, ensuring the continuity of production.

[0052] like Figure 6 As shown, in an optional embodiment, the roll material lifting device 12 further includes multiple structural reinforcing rods 125, both ends of which are fixedly connected to the load-bearing crossbeam 121 and the hanging rod 122. In this embodiment, the structural reinforcing rods 125 can form a stable triangular support structure between the load-bearing crossbeam 121 and the hanging rod 122, further enhancing the structural strength and stability of the connection between the two, effectively dispersing the stress generated during the lifting process, and preventing the connection between the hanging rod 122 and the load-bearing crossbeam 121 from deforming or being damaged due to excessive force; at the same time, through the reinforcement effect of the reinforcing rods, the overall load-bearing capacity and deformation resistance of the roll material lifting device 12 can be improved, ensuring the stability and reliability of the lifting device structure when lifting heavier roll materials 16, reducing the lifting risk caused by insufficient structural strength, thereby ensuring the safety and efficiency of the lifting and handling process of the roll material 16.

[0053] like Figure 7 and Figure 8 As shown, in an optional embodiment, the platform 1 is provided with a roll material feeding port 101 below the unwinding assembly 2; each unwinding assembly 2 includes two unwinding frames 21 disposed opposite to each other on both sides of the roll material feeding port 101; the unwinding frame 21 is provided with a bearing seat 22, and the bearing seat 22 is provided with a U-shaped groove 221 with an opening 41 facing upward; the U-shaped groove cooperates with the roll 13; the bearing seat 22 is provided with an arc-shaped stop part 222 on the side away from the roll 13, and the arc-shaped stop part 222 is located in the U-shaped groove. In this embodiment, the U-shaped groove facilitates the quick placement and removal of the roll 13; while the arc-shaped stops 222 on the two bearing seats 22 can limit the two ends of the roll 13, preventing the roll 13 from accidentally detaching from the U-shaped groove due to force or vibration during the unwinding process, thus ensuring the stability of the unwinding operation; at the same time, the roll material conveying port 101 can cooperate with the unwinding assembly 2 to smoothly guide the unwound roll 16 to the processing area below. The overall structure of the unwinding assembly 2 not only satisfies the stable support and unwinding function of the roll 13, but also improves the smoothness and safety of the unwinding and conveying of the roll 16.

[0054] like Figures 7 to 9 As shown, in an optional embodiment, two limiting rollers 14 are fixedly mounted above the roll material conveying port 101. The length direction of the limiting rollers 14 is consistent with the length direction of the roll material conveying port 101, and a roll material 16 conveying channel 15 is formed between the two limiting rollers 14. The limiting rollers 14 can guide and limit the roll material 16 released from the unwinding assembly 2 and conveyed through the roll material conveying port 101, so that the roll material 16 maintains a stable path during the conveying process, avoids the roll material 16 from deviating, wrinkling or skewing due to external force or uneven tension, ensures that the roll material 16 enters the bonding assembly below accurately and flatly, reduces processing quality problems caused by the position deviation of the roll material 16, and improves the continuity and stability of the roll material 16 conveying, ensuring the smooth progress of the composite roll material 16 production process.

[0055] like Figure 3 As shown, in order to facilitate production personnel to enter the platform 1, the unwinding platform is equipped with a ladder 17 and a railing 18.

[0056] A second aspect of this invention also provides a PVC composite roll production apparatus, including the aforementioned unwinding platform. This PVC composite roll production apparatus achieves stable unwinding and conveying of the roll 16 through the unwinding platform, improving the working environment and ensuring production quality and efficiency.

[0057] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An unwinding platform, comprising a platform (1) and a plurality of unwinding components (2) arranged side by side on the platform (1); characterized in that, A first structural frame (3) is horizontally arranged above the platform (1), and a second structural frame (4) is fixedly arranged around the platform on the vertical side of the platform (1); the upper side of the second structural frame (4) is fixedly connected to the first structural frame (3). A duct (5) is fixedly provided on the first structural frame (3), and the duct (5) is connected to multiple cold air delivery pipes (6); the cold air delivery pipes (6) pass downward through the first structural frame (3), and the cold air outlet (61) of the cold air delivery pipes (6) is located above the platform (1); the duct (5) is connected to a screw chiller. Dustproof pads (7) are fixedly provided on the outer sides of the first structural frame (3) and the second structural frame (4).

2. The unwinding platform according to claim 1, characterized in that, The cold air outlet (61) of the cold air delivery pipe (6) is detachably connected to a filter assembly (8).

3. The unwinding platform according to claim 1, characterized in that, The first structural frame (3) is fixedly connected to a track (9) on its lower side; the track (9) is arranged along the length direction of the platform (1), and an electric hoist (10) is provided on the track (9) and is movably connected to the track (9); the electric hoist (10) is connected to a roll material lifting device (12) through a hook (11); The track (9) passes horizontally through the second structural frame (4) and extends to the outside of the second structural frame (4), which has an opening (41) for the roll material lifting device (12) to pass through.

4. The unwinding platform according to claim 3, characterized in that, The roll material lifting device (12) includes a load-bearing crossbeam (121), a hanging rod (122) that is inverted V-shaped and fixedly connected to the upper side of the load-bearing crossbeam (121), and a U-shaped limiting part (123) fixedly installed on the upper side of both ends of the load-bearing crossbeam (121); a hanging strap (124) located in the U-shaped limiting part (123) is sleeved on the load-bearing crossbeam (121).

5. The unwinding platform according to claim 4, characterized in that, The roll material lifting device (12) also includes multiple structural reinforcing rods (125), both ends of which are fixedly connected to the load-bearing crossbeam (121) and the hanging rod (122).

6. The unwinding platform according to claim 1, characterized in that, The platform (1) is provided with a roll material feeding port (101) below the unwinding assembly (2). The unwinding assembly (2) includes two unwinding frames (21) arranged opposite to each other on both sides of the roll material feeding port (101). The unwinding frame (21) is provided with a bearing seat (22), and the bearing seat (22) is provided with an upward-opening U-shaped groove (221). The U-shaped groove (221) cooperates with the roll (13). The bearing seat (22) is provided with an arc-shaped stop (222) on the side away from the roll (13), and the arc-shaped stop (222) is located in the U-shaped groove (221).

7. The unwinding platform according to claim 6, characterized in that, Two limiting rollers (14) are fixedly mounted above the roll material conveying port (101). The length direction of the limiting rollers (14) is consistent with the length direction of the roll material conveying port (101), and a roll material conveying channel (15) is formed between the two limiting rollers (14).

8. A PVC composite roll production apparatus, characterized in that, Includes the unwinding platform as described in any one of claims 1-7.

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