A heating device for bath tub formation

Abstract

The utility model is suitable for bathtub production technical field discloses heating device of bathtub forming, heating device of bathtub forming including installation platform, heat shield, heating assembly and electric cylinder, the heat shield is swinged in the below of installation platform, and the bottom of heat shield is equipped with first opening, heating assembly is equipped in heat shield, the electric cylinder has two groups, two groups electric cylinders all are fixedly installed on installation platform, both sides of heat shield are connected with the telescopic link transmission of two groups electric cylinders respectively. The utility model discloses through setting installation platform above the operation pit of installing forming mould, and setting multiple electric cylinders on installation platform to drive heat shield, make the heat shield of inside equipping with heating assembly can move down and cover and set in the above of forming mould, to be able to carry out heating heat preservation to the area of larger acrylic plate in mould, so that can realize the forming of large volume bathtub through the vacuum extraction to the cavity to the subsequent.

Description

Technical Field

[0001] This utility model relates to the field of bathtub manufacturing technology, and in particular to a heating device for bathtub molding. Background Technology

[0002] Currently, bathtubs are widely made of acrylic sheets. However, during the molding process, acrylic sheets exhibit issues such as less deformation at the periphery and greater deformation in the center, affecting the quality of the finished product. Therefore, existing bathtub molding molds typically incorporate a heating mechanism to ensure uniform heating of the acrylic sheet within the mold, thereby improving the mechanical properties of the finished bathtub. For example, Chinese patent document CN202120908054.3 discloses a heating mechanism for molding acrylic bathtubs, including a heating element mounted on a lifting frame. This disclosed heating mechanism can heat the acrylic sheet within the molding mold, ensuring uniform heating.

[0003] However, the heating mechanism disclosed above is only suitable for molding smaller bathtubs. For molding larger bathtubs, the molding mold is usually set in a working pit under the workshop floor, and the heating mechanism disclosed above cannot be used for molding larger bathtubs. Utility Model Content

[0004] The purpose of this utility model is to provide a heating device for bathtub molding, specifically a heating device suitable for molding large-volume bathtubs.

[0005] To achieve the above objectives, the solution provided by this utility model is as follows:

[0006] A bathtub-shaped heating device includes a mounting platform, a heat-insulating cover, a heating component, and an electric cylinder;

[0007] The heat shield is movably disposed below the installation platform, and the bottom of the heat shield has a first opening, and the heating component is disposed inside the heat shield.

[0008] There are two sets of electric cylinders, both of which are fixedly mounted on the installation platform. The two sides of the heat shield are respectively connected to the telescopic rods of the two sets of electric cylinders.

[0009] Optionally, the heating assembly includes multiple heating tube groups arranged side by side within a heat-insulating cover; each heating tube group includes multiple heating tubes arranged side by side.

[0010] Optionally, the heat shield is provided with multiple support beams; both ends of the support beams are fixedly connected to the inner wall of the heat shield, and heating tube terminals are fixedly provided on the support beams.

[0011] Optionally, the length direction of the heating tube is parallel to the length direction of the heat shield, and the length direction of the support beam is parallel to the width direction of the heat shield.

[0012] Optionally, the top of the heat shield has multiple observation windows spaced apart.

[0013] Optionally, the telescopic rod of the electric cylinder passes downward through the mounting platform, and a connecting component is fixedly provided at the lower end of the telescopic rod; the connecting component is fixedly connected to the outer wall of the heat shield.

[0014] Optionally, the connecting assembly includes a horizontally arranged connecting plate and two vertically arranged structural reinforcing plates; the structural reinforcing plates are fixedly disposed on both sides of the connecting plate.

[0015] Optionally, the mounting platform is provided with a second opening for accommodating the heat shield.

[0016] Optionally, a positioning plate is fixedly provided on the mounting platform above the second opening; the top of the heat shield is vertically and fixedly provided with multiple guide rods, which are movably inserted through the positioning plate.

[0017] Beneficial effects:

[0018] This invention provides a heating device for bathtub molding. An installation platform is set above a working pit containing a molding mold, and multiple electric cylinders are installed on the platform to drive a heat-resistant cover. This heat-resistant cover, equipped with heating components, moves downwards and covers the molding mold, thereby heating and insulating the large acrylic sheet within the mold. This allows for subsequent vacuuming of the cavity to form a large-volume bathtub. Compared to existing horizontally moving heating devices, this invention not only shortens the molding time but also ensures uniform heating of the acrylic sheet within the mold, improving the mechanical properties of the molded bathtub and increasing the yield rate.

[0019] Furthermore, this invention uses two sets of electric cylinders to simultaneously drive the heat-insulating cover. The synchronous drive of multiple electric cylinders allows the heat-insulating cover to move smoothly up and down, reducing the load on a single electric cylinder and preventing damage to a single electric cylinder due to excessive force, thus improving the safety of the heating device. At the same time, it ensures that the heat-insulating cover remains balanced during movement, allowing it to be accurately positioned above the molding die, thereby ensuring uniform heating of the acrylic sheet and helping to improve the quality and yield of bathtub molding. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the heating device for bathtub molding provided by this utility model. Figure 1 .

[0022] Figure 2 yes Figure 1 Enlarged view of section A.

[0023] Figure 3 This is a schematic diagram of the heating device for bathtub molding provided by this utility model. Figure 2 .

[0024] Figure 4 yes Figure 3 Enlarged view of section B.

[0025] Figure 5 This is a schematic diagram of the structure of the heating component.

[0026] Figure 6 This is a schematic diagram of the heating device for bathtub molding provided by this utility model. Figure 3 .

[0027] Explanation of icon numbers:

[0028] 1- Installation platform; 101- Second opening;

[0029] 2-Heat shield; 201-First opening;

[0030] 3-Heating assembly; 31-Heating tube assembly; 311-Heating tube; 312-Support beam;

[0031] 4-Electric cylinder; 5-Observation window;

[0032] 6-Connecting component; 61-Connecting plate; 62-Structural reinforcing plate;

[0033] 7-Positioning plate; 8-Guide rod. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] See Figures 1 to 6 This utility model provides a heating device for bathtub molding, including a mounting platform 1, a heat-insulating cover 2, a heating component 3, and an electric cylinder 4.

[0039] Specifically, the installation platform 1 is erected in the bathtub molding workshop and located above the working pit where the molding mold is installed. There are two sets of electric cylinders 4, both fixed to the installation platform 1. The two sides of the heat-insulating cover 2 are respectively connected to the telescopic rods of the two sets of electric cylinders 4. The heat-insulating cover 2 can move up and down by simultaneously driving multiple electric cylinders 4. The heating component 3 is installed inside the heat-insulating cover 2, and a first opening 201 is provided at the bottom of the heat-insulating cover 2. When the heating component 3 is working, the heat generated by the heating component 3 can only be transferred downwards through the first opening 201 to the acrylic plate of the molding mold, so that the acrylic plate remains softened by heat during the bathtub molding process.

[0040] Specifically, when a large-volume bathtub needs to be formed using a molding mold set in the working pit, multiple workers first transfer a large acrylic sheet to the molding mold. Then, multiple clamping mechanisms (the clamping mechanisms are existing technologies, which can be the clamping unit disclosed in CN212707968U or the clamping device disclosed in CN208978250U) clamp the edge of the acrylic sheet to the outer periphery of the mold cavity opening. Then, multiple electric cylinders 4 simultaneously drive the heat-insulating cover 2 downwards, causing the heat-insulating cover 2 to move downwards and cover the molding mold, thereby heating and keeping the acrylic sheet in the mold warm. After keeping it warm for a certain period of time, a vacuum is then drawn into the cavity to achieve the forming of the large-volume bathtub.

[0041] As can be seen, this utility model, by setting an installation platform 1 above the working pit where the molding mold is installed, and setting multiple electric cylinders 4 on the installation platform 1 to drive the heat-insulating cover 2, allows the heat-insulating cover 2, which is equipped with heating components 3 inside, to move downward and cover the molding mold. This heats and insulates the large acrylic sheet in the mold, enabling subsequent vacuuming of the cavity to achieve the molding of a large-volume bathtub. Compared with existing horizontally moving heating devices, the heating device for bathtub molding provided by this utility model has a shorter vertical lifting path for the heat-insulating cover, reducing idle travel time. The sealed heating environment also reduces heat loss and accelerates the softening of the acrylic sheet. This not only shortens the molding time of the bathtub but also ensures that the acrylic sheet is heated evenly within the molding mold, thereby improving the mechanical properties of the molded bathtub and contributing to a higher yield.

[0042] Furthermore, by setting two sets of electric cylinders 4 to drive the heat-insulating cover 2 simultaneously, the heat-insulating cover 2 can be moved up and down smoothly through the synchronous drive of multiple electric cylinders 4, reducing the load on a single electric cylinder 4 and preventing damage to a single electric cylinder 4 due to excessive force, thereby improving the safety of the heating device. At the same time, it can ensure that the heat-insulating cover 2 remains balanced during movement, so that it is accurately placed above the molding mold, thereby ensuring the uniformity of heating of the acrylic sheet and helping to improve the quality and yield of bathtub molding.

[0043] In an optional embodiment, the heating assembly 3 includes multiple heating tube groups 31 arranged side-by-side within the heat shield 2; each heating tube group 31 includes multiple heating tubes 311 arranged side-by-side. This embodiment designs the heating assembly 3 as multiple heating tube groups 31 arranged side-by-side within the heat shield 2, and each heating tube group 31 includes multiple heating tubes 311 arranged side-by-side. Increasing the number of heating tubes 311 expands the heating area, making the heat distribution at the first opening 201 at the bottom of the heat shield 2 more uniform, thereby ensuring uniform heating of the acrylic sheet during the molding process and effectively improving the deformation problem caused by local temperature differences.

[0044] Specifically, the heating tube 311 can be a resistance heating tube 311 or an infrared heating tube, etc.

[0045] In an optional embodiment, the heat shield 2 is provided with multiple support beams 312; both ends of the support beams 312 are fixedly connected to the inner wall of the heat shield 2, and a heating tube 311 terminal block is fixedly mounted on the support beams 312. In this embodiment, the support beams 312 provide a stable mounting carrier for the heating tube 311, allowing the heating tube 311 to be installed inside the heat shield 2 via the support beams 312; and the heating tube 311 terminal block is fixed on the support beams 312, facilitating the centralized connection and layout of the electrical circuit of the heating tube 311, making the circuit route more regular and simplifying the wiring operation during the installation of the heating tube 311.

[0046] In an optional embodiment, the length direction of the heating tube 311 is parallel to the length direction of the heat shield 2, thereby allowing the heating tube 311 to be evenly arranged along the length direction of the heat shield 2. By setting multiple heating tube groups 31, the heating assembly 3 can fully cover the first opening 201 at the bottom of the heat shield 2, ensuring that the acrylic plate is heated evenly. In this way, even if the length of the heat shield 2 is long, the acrylic plate will not be unable to be heated evenly due to insufficient length of the heating tube 311.

[0047] In an optional embodiment, the top of the heat shield 2 is provided with multiple observation windows 5 at intervals, which facilitates workers to observe the molding of the bathtub below the heat shield 2 from below the installation platform 1.

[0048] In an optional embodiment, the telescopic rod of the electric cylinder 4 passes downward through the mounting platform 1, and a connecting component 6 is fixedly provided at the lower end of the telescopic rod of the electric cylinder 4; the connecting component 6 is fixedly connected to the outer wall of the heat shield 2. In this embodiment, the heat shield 2 and the telescopic rod of the electric cylinder 4 are connected simultaneously by the connecting component, so that as long as the body of the electric cylinder 4 is installed above the mounting platform 1, the heat shield 2 can be moved up and down smoothly; in addition, the connecting component 6 can enhance the connection stability between the electric cylinder 4 and the heat shield 2, so that the two sets of electric cylinders 4 can drive the heat shield 2 synchronously and smoothly, ensuring that the heat shield 2 remains balanced during movement and is accurately placed above the molding mold, thereby ensuring that the acrylic sheet is heated evenly and improving the molding quality of the bathtub.

[0049] In an optional embodiment, the connecting assembly 6 includes a horizontally arranged connecting plate 61 and two vertically arranged structural reinforcing plates 62; the structural reinforcing plates 62 are fixedly disposed on both sides of the connecting plate 61. The telescopic rod of the electric cylinder 4 is detachably connected to the connecting plate 61. In this embodiment, the vertical reinforcing plates can be fixed to both sides of the connecting plate 61 by welding or bolting to form an "I"-shaped cross-section structure, which can effectively resist the shear force and torque generated when the heat shield 2 is raised and lowered, prevent the connecting plate 61 from becoming loose due to deformation under force, and ensure the synchronization and stability of the electric cylinder 4 driving the heat shield 2.

[0050] In an optional embodiment, the mounting platform 1 is provided with a second opening 101 for accommodating the heat shield 2. When the heat shield 2 is located in the second opening 101, a gap is left between the heat shield 2 and the mounting platform 1. The second opening 101 facilitates the upward introduction of cables electrically connected to the heating assembly 3 to the top of the mounting platform 1, thereby facilitating connection to electrical equipment such as power supplies and controllers above the platform.

[0051] In an optional embodiment, a positioning plate 7 is fixedly mounted on the mounting platform 1 above the second opening 101; multiple guide rods 8 are vertically mounted on the top of the heat shield 2, and the guide rods 8 are movably inserted through the positioning plate 7. In this embodiment, the guiding structure formed by the positioning rods and the guide rods 8 can limit the vertical movement of the heat shield 2, preventing the heat shield 2 from shifting or tilting when moving vertically, thereby reducing the additional resistance caused by the deviation of the movement path of the heat shield 2. When the heat shield 2 moves vertically up and down along the guide rods 8, the electric cylinder 4 only needs to overcome the weight of the heat shield 2 and a small amount of frictional resistance, thereby reducing the driving load of the electric cylinder 4. In addition, the cooperation of multiple guide rods 8 and positioning plate 7 can evenly distribute the weight of the heat shield 2, preventing a single electric cylinder 4 from bearing excessive load, thereby reducing the wear and energy consumption of the electric cylinder 4, extending its service life and improving the stability of the drive system.

[0052] For example, the number of positioning plates 7 is not less than two, and each positioning plate 7 is movably provided with at least two guide rods 8.

[0053] 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. A heating device for a bathtub, characterized in that, This includes the mounting platform, heat shield, heating components, and electric cylinder; The heat shield is movably disposed below the installation platform, and the bottom of the heat shield has a first opening, and the heating component is disposed inside the heat shield. There are two sets of electric cylinders, both of which are fixedly mounted on the installation platform. The two sides of the heat shield are respectively connected to the telescopic rods of the two sets of electric cylinders.

2. The heating device for bathtub forming according to claim 1, characterized in that, The heating assembly includes multiple heating tube groups arranged side by side inside a heat-insulating cover; each heating tube group includes multiple heating tubes arranged side by side.

3. The heating device for bathtub forming according to claim 2, characterized in that, The heat shield is equipped with multiple support beams; both ends of the support beams are fixedly connected to the inner wall of the heat shield, and heating tube terminals are fixedly installed on the support beams.

4. The heating device for bathtub molding according to claim 3, characterized in that, The length direction of the heating tube is parallel to the length direction of the heat shield, and the length direction of the support beam is parallel to the width direction of the heat shield.

5. The heating device for bathtub molding according to claim 1, characterized in that, The top of the heat shield has multiple observation windows spaced apart.

6. The heating device for bathtub forming according to claim 1, characterized in that, The telescopic rod of the electric cylinder passes downward through the mounting platform, and a connecting component is fixedly provided at the lower end of the telescopic rod; the connecting component is fixedly connected to the outer wall of the heat shield.

7. The heating device for bathtub molding according to claim 6, characterized in that, The connecting assembly includes a horizontally arranged connecting plate and two vertically arranged structural reinforcing plates; the structural reinforcing plates are fixedly arranged on both sides of the connecting plate.

8. The heating device for bathtub forming according to claim 1, characterized in that, The mounting platform is provided with a second opening for accommodating the heat shield.

9. The heating device for bathtub molding according to claim 8, characterized in that, A positioning plate is fixedly installed on the mounting platform above the second opening; multiple guide rods are vertically and fixedly installed on the top of the heat shield, and the guide rods are movably inserted through the positioning plate.

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