Wax material supply equipment
By designing the circulation system and pump device of the wax supply equipment, the problem of wax tank stratification was solved, realizing continuous flow and efficient supply of wax, and improving the quality and production efficiency of cavity wax injection process.
Patent Information
- Application Number
- CN202520175087.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-26
AI Technical Summary
In existing technologies, wax in wax storage tanks is prone to stratification, which limits the quality of cavity wax injection process, and manual stirring is costly and has limited effect.
Design a wax supply device, including a wax storage tank and a wax circulation system, which continuously or periodically circulates the wax through a circulation loop and a pump device to prevent stratification, and supplies wax to the wax injection process through the wax supply tank.
It effectively prevents stratification in wax storage tanks, improves the quality of cavity wax injection process, reduces labor costs, and increases production efficiency.
Smart Images
Figure CN223687295U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a wax material supply equipment. BACKGROUND
[0002] During use, the hollow parts of the car body, including the doors, the inner cavities of the frame and the hollow structures inside the fenders, will accumulate moisture, dust and other impurities and thus are extremely vulnerable to corrosion. The cavity wax injection process is a technical means specially used to solve this problem, and its core principle is to build a uniform wax film inside the hollow part of the car body. This wax film can effectively isolate the easily-rusting metal surface from various corrosive factors from the outside world, such as water, air, salt mist, etc. By implementing the cavity wax injection process, the corrosion resistance of the car body is greatly improved. Even in extremely harsh environmental conditions, such as high-salt-mist environments in coastal areas or humid southern regions, the car can maintain good structural integrity of the car body during long-term use, thereby effectively reducing vehicle repair costs due to corrosion. In the cavity wax injection process, oily wax can be used as the wax material. This type of wax material is in a liquid state at room temperature and has excellent water resistance and stain resistance.
[0003] However, in actual production, oily wax stored in the wax material storage tank (such as the IBC ton barrel provided by the supplier) for a long time will exhibit stratification. Wax material stratification will adversely affect the quality of the cavity wax injection process for the car body. The current conventional method to solve the wax material stratification problem is manual stirring, but this method has many drawbacks. On the one hand, it is very costly in terms of labor, as the operator at the wax material storage tank station needs to continuously monitor the wax material state and stir the wax material in the storage tank at regular intervals. On the other hand, manual stirring can only improve the wax material stratification to a certain extent, as the stirred wax material will still exhibit stratification to some extent, which limits further optimization and quality improvement of the cavity wax injection process. SUMMARY
[0004] The task of the utility model is to provide a wax material supply equipment, which can improve the wax material stratification problem in the wax material storage tank.
[0005] The task is solved by a wax supply device comprising a wax supply tank and a wax circulation system, the wax circulation system comprising a wax reservoir for containing a flowable wax, a circulation loop, the first end of which is in flow connection with a feed inlet of the wax reservoir, the second end of which is in flow connection with a discharge outlet of the wax reservoir, and a first pump device arranged in the circulation loop, which, when activated, causes the wax to flow from the wax reservoir via the discharge outlet into the circulation loop and ultimately back from the circulation loop via the feed inlet to the wax reservoir. An input of the wax supply tank is in flow connection with the discharge outlet of the wax reservoir via a supply line, and an output of the wax supply tank is connected to a wax application device via a wax delivery line.
[0006] According to the wax supply device of the present disclosure, by continuously or periodically circulating the wax in the wax reservoir via the circulation loop, stratification of the wax in the wax reservoir can be effectively prevented, and the quality of the cavity wax injection process can be improved, especially when the wax supply device is applied to motor vehicle manufacturing.
[0007] According to some embodiments of the present disclosure, a second pump device is arranged in the supply line, a line branching portion is arranged between the second pump device and the discharge outlet of the wax reservoir, a first line branches from the line branching portion to the discharge outlet of the wax reservoir, a second line branches from the line branching portion to the feed inlet of the wax reservoir, and the first pump device is arranged in the second line. In some embodiments, a first valve element is arranged in the second line between the line branching portion and the first pump device, and a second valve element is arranged in the second line between the first pump device and the feed inlet of the wax reservoir.
[0008] According to some embodiments of the present disclosure, the second pump device and the first pump device are configured identically and are configured as diaphragm pumps.
[0009] According to some embodiments of the present disclosure, a line branching portion is arranged in the circulation loop between the first pump device and the discharge outlet of the wax reservoir, a first line branches from the line branching portion to the discharge outlet of the wax reservoir, the first pump device is arranged in the first line, a second line branches from the line branching portion to the feed inlet of the wax reservoir, and a third line branches from the line branching portion to the wax supply tank. In some embodiments, a first valve element is arranged in the first line, a second valve element is arranged in the second line, and a third valve element is arranged in the third line.
[0010] According to some embodiments of the present application, the first pipe and the second pipe form the circulation loop, and the first pipe and the third pipe form the supply pipe.
[0011] According to some embodiments of the present application, a liquid level sensor and a liquid level indicator are provided in the circulation loop.
[0012] According to some embodiments of the present application, a check valve is provided in the circulation loop.
[0013] According to some embodiments of the present application, a valve element is provided at each end of the first pump device in the circulation loop.
[0014] According to some embodiments of the present application, a liquid level sensor and a liquid level indicator are provided in the first pipe.
[0015] According to some embodiments of the present application, a check valve is provided in the second pipe. In some embodiments, the check valve is provided between the first pump device and the second valve element.
[0016] According to some embodiments of the present application, the feed inlet of the wax reservoir is located at the top of the wax reservoir or in the upper half region of the side wall of the wax reservoir; and / or the discharge outlet of the wax reservoir is located at the bottom of the wax reservoir or in the lower half region of the side wall of the wax reservoir.
[0017] According to some embodiments of the present application, the feed inlet of the wax reservoir is located at the top of the wax reservoir, the second end of the circulation loop is fixedly connected with a closure cap and extends into the interior of the wax reservoir through a through hole in the closure cap, the closure cap can be used to close the feed inlet, and the closure cap is connected with a lifting device.
[0018] According to some embodiments of the present application, the first pump device is electrically connected with the electronic control device.
[0019] According to some embodiments of the present application, the first pump device is provided with an electromagnetic valve and a compressed air regulator, and the electromagnetic valve and the compressed air regulator are electrically connected with the electronic control device.
[0020] According to some embodiments of the present application, a collection tray is provided below the wax reservoir to receive the wax leaking from the wax reservoir.
[0021] According to some embodiments of the present application, the wax supply device is a wax supply device for motor vehicle manufacturing.
[0022] According to some embodiments of the present application, the flowable wax is an oil-based wax.
[0023] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown in the drawings alone can be arbitrarily combined with each other, provided that the technical features to be combined are not contradictory to each other. All feasible combinations of features are explicitly described herein. Any one of the multiple sub-features included in the same sentence can be applied independently, and does not necessarily have to be applied together with other sub-features. BRIEF DESCRIPTION OF DRAWINGS
[0024] The present application will be described in more detail by way of example with reference to the accompanying drawings. Brief description of the drawings is as follows:
[0025] Figure 1 is a schematic plan view of a partial view of the wax supply apparatus 1 according to the exemplary first embodiment of the present application;
[0026] Figure 2 is a schematic side view of a partial view of the wax supply apparatus 1 of Figure 1
[0027] Figure 3 is a schematic plan view of a partial view of the wax supply apparatus 1 according to the exemplary second embodiment of the present application;
[0028] Figure 4 is a schematic side view of a partial view of the wax supply apparatus 1 according to the exemplary second embodiment of the present application. DETAILED DESCRIPTION
[0029] A number of example embodiments will now be described with reference to the drawings. It should be appreciated that for ease of illustration and understanding, elements not necessary for understanding the present application can be omitted from the drawings. In the drawings, the same reference numerals can denote the same components or components having the same function. In the following description, numerous specific details are set forth, such as examples of specific components, devices, and methods, in order to provide a thorough understanding of implementations of the present disclosure. It will be apparent to those skilled in the art that not all of the specific details need be employed to make, use, or practice the present disclosure. The example embodiments should not be construed as limiting.
[0030] Figure 1 is a schematic plan view of a partial view of the wax supply apparatus 1 according to the exemplary first embodiment of the present application.
[0031] The wax supply device 1 has a wax circulation system for preventing stratification of the wax. The wax circulation system comprises a wax tank 2 for containing the flowable wax, for example an IBC ton container, i.e. an intermediate bulk container, provided by a supplier, and a circulation loop 3, a first end of which is fluidly connected to a feed inlet 4 of the wax tank, and a second end of which is fluidly connected to a discharge outlet 5 of the wax tank 2. According to one design, the first end of the circulation loop 3 opens into the wax tank through the feed inlet 4, and / or the second end of the circulation loop 3 opens into the wax tank 2 through the discharge outlet 5. It is also conceivable that the first end of the circulation loop 3 is connected to the feed inlet 4 of the wax tank by means of a pipe joint, and / or the second end of the circulation loop 3 is connected to the discharge outlet 5 of the wax tank 2 by means of a pipe joint.
[0032] A first pump device 6 is provided in the circulation loop 3, which first pump device is advantageously electrically connectable to an electronic control device in order to control the circulation flow process of the wax in the wax tank 2. The first pump device can, when activated, cause the wax to pass from the wax tank 2 via the discharge outlet 5 into the circulation loop 3 and finally from the circulation loop 3 via the feed inlet 4 back to the wax tank 2. The first pump device 6 can be configured, for example, as a diaphragm pump, which enables stable and precise control of the flow rate of the wax, while the diaphragm pump also has the advantages of good sealing, corrosion resistance, etc. The wax in the wax tank 2 can be, for example, an oil-based wax or a solvent-based wax, which is liquid at room temperature and has good water repellency and excellent stain resistance.
[0033] By means of the circulation loop 3, the wax in the wax tank 2 can be circulated in a closed loop, so that the wax is prevented from stratifying and the wax tank 2 can be kept free of air bubbles. Figure 1 It can be seen that the wax supply device 1 also comprises a wax supply tank 7 for supplying the wax to a production line in which the cavity wax injection process is to be carried out. An input opening 15 of the wax supply tank 7 can be fluidly connected to the discharge outlet 5 of the wax tank 2 via a supply line 8, whereby the wax can be delivered from the wax tank 2 into the wax supply tank 7. A second pump device 9 is provided in the supply line 8, between which and the discharge outlet 5 of the wax tank 2 there is a line branching portion 10, a first line 11 leading from the line branching portion 10 to the discharge outlet 5 of the wax tank 2, a second line 12 leading from the line branching portion 10 to the feed inlet 4 of the wax tank, and the first pump device 6 is located in the second line 12. Furthermore, a third line 13 branches from the line branching portion 10, which third line leads from the line branching portion 10 to the wax supply tank 7. Here, the first line 11 and the second line 12 form the circulation loop 3, and the first line 11 and the third line 13 form the supply line 8. Advantageously, the second pump device 9 can be configured identically to the first pump device 6 and preferably as a diaphragm pump.
[0034] In order to monitor the level information of the wax in the wax storage tank 2, a level sensor 20 and a level indicator 21 can be provided in the circulation loop 3, preferably in the first pipeline 11. In addition, a check valve can be provided in the circulation loop 3, preferably in the second pipeline 12, to prevent the wax in the circulation loop 3 from returning to the wax storage tank 2 via the discharge outlet 5.
[0035] In order to facilitate the disassembly and commissioning of the first pump device 6, a valve element can be provided in the circulation loop 3 on both sides of the first pump device 6. According to an advantageous design, a first valve element can be provided in the second pipeline 12 between the pipeline branch 10 and the first pump device 6, and a second valve element can be provided in the second pipeline 12 between the first pump device 6 and the feed inlet 4 of the wax storage tank. The first valve element and / or the second valve element can be configured as a ball valve, for example. In particular advantageously, the check valve is arranged between the first pump device 6 and the second valve element, thereby facilitating the disassembly and commissioning of the check valve without the need to provide further valve elements for this purpose.
[0036] With the first embodiment of the present application, the first pump device 6 is specifically used for the circulation of the wax from the wax storage tank 2 via the circulation loop, and the second pump device 9 is specifically used for the delivery of the wax from the wax storage tank 2 to the wax supply tank 7. For example, in the wax circulation mode, the first pump device 6 is started, and the second pump device 9 is turned off; in the wax supply mode, the first pump device 6 is turned off, and the second pump device 9 is started. In this way, the overall failure rate of the wax supply device 1 can be reduced, the downtime can be reduced, and thus the production rate can be improved.
[0037] The wax circulation operation can include two operation modes, i.e. an automatic mode or a manual mode. When the operation mode of the wax circulation system is the manual mode, the operator presses the start button of the wax circulation system, the first pump device starts to operate, the wax in the wax storage tank 2 is circulated via the discharge outlet 5 into the circulation loop 3, passes through the entire circulation loop, and returns from the circulation loop 3 to the wax storage tank 2 via the feed inlet 4 until the operator presses the stop button of the wax circulation system, and the first pump device stops operating. When the operation mode of the wax circulation system is the automatic mode, the operator presses the start button of the wax circulation system, the first pump device starts to operate, and the following steps can be performed in a circulating manner, for example: Step 1: the wax circulation system operates for a first time t1 (e.g. 30 minutes to 1 hour, preferably 45 minutes); Step 2: the wax circulation system stops for a second time t2 (e.g. 45 minutes to 1.5 hours, preferably 1 hour); Step 3: the wax circulation system operates for a third time t3 (e.g. 3 minutes to 10 minutes, preferably 5 minutes), wherein the first time t1 is greater than the third time t3; Step 4: the wax circulation system is stopped for the second time t2; Steps 3 and 4 are repeated until the operator presses the stop button of the wax circulation system.
[0038] Figure 2 is according to Figure 1 is a schematic side view of a partial view of a wax supply device 1 according to the present application. In Figure 2 the input port 15 and the output port 14 of the wax supply tank 7 are clearly shown, wherein the third line 13 leads into the wax supply tank 7 via the input port 15 and the output port 14 of the wax supply tank is connected via a wax delivery line 18 to a wax application device (not shown), for example at a production line wax injection station, in order to supply the wax application device with wax by means of the wax supply tank 7 and to carry out a cavity wax injection process on a corresponding vehicle component.
[0039] Advantageously, the first pump device 6 and the second pump device 9 can be respectively equipped with an electromagnetic valve 16 and a compressed air regulator 17, which are connected to an electronic control device in order to precisely control the operating state of the respective pump device and the delivery pressure exerted on the wax. It is also conceivable that the first pump device 6 and the second pump device 9 share an electromagnetic valve 16 and a compressed air regulator 17, whereby the structure of the wax supply device 1 can be simplified and the device costs can be reduced.
[0040] Figure 3 is a schematic top view of a partial view of a wax supply device 1 according to an exemplary second embodiment of the present application.
[0041] Similar to the first embodiment, the wax supply device 1 comprises a wax circulation system and a wax supply tank 7, wherein the wax circulation system comprises a wax storage tank 2 for containing wax and a circulation loop 3, a first end of the circulation loop 3 is flow-conductively connected to a feed inlet 4 of the wax storage tank and a second end of the circulation loop 3 is flow-conductively connected to a discharge outlet 5 of the wax storage tank. A first pump device 6 is provided in the circulation loop 3 in order to control the circulation flow process of the wax via the circulation loop 3.
[0042] The wax supply device 1 according to the second embodiment differs from the first embodiment in that the wax circulation system of the wax supply device 1 according to the second embodiment does not have a second pump device 9. In other words, the first pump device 6 is used not only to implement the circulation flow of the wax in the wax reservoir 2 via the circulation loop, but also to implement the wax supply from the wax reservoir 2 to the wax supply tank 7. Specifically, a pipe branching-off portion 10 is provided in the circulation loop 3 between the first pump device 6 and the feed inlet 4 of the wax reservoir 2, a first pipe 11 leads from the pipe branching-off portion 10 to the discharge outlet 5 of the wax reservoir 2, the first pump device 6 is located in the first pipe 11, and a second pipe 12 leads from the pipe branching-off portion 10 to the feed inlet 4 of the wax reservoir. Furthermore, a third pipe 13 branches off from the pipe branching-off portion and leads from the pipe branching-off portion to the wax supply tank 7. Here, the first pipe 11 and the second pipe 12 form the circulation loop 3, and the first pipe 11 and the third pipe 13 form the supply pipe 8.
[0043] According to the second embodiment of the utility model, the circulation loop 3 and the supply pipe 8 share a first pump device, and the circulation flow of the wax via the circulation loop and the wax supply from the wax reservoir 2 to the wax supply tank 7 are both implemented by the first pump device. Thus, the structure of the wax supply device 1 is simplified and the equipment cost is reduced.
[0044] According to an advantageous design, a first valve element can be provided in the first pipe 11, a second valve element can be provided in the second pipe 12, and a third valve element can be provided in the third pipe 13. The first valve element, the second valve element, and / or the third valve element can be configured, for example, as a ball valve. In the wax circulation operating mode, the first valve element and the second valve element are open, and the third valve element is closed; in the wax supply operating mode, the first valve element and the third valve element are open, and the second valve element is closed. Thus, in a simple manner, it is achieved that the circulation flow of the wax via the circulation loop and the wax supply from the wax reservoir 2 to the wax supply tank 7 can both be implemented by the first pump device.
[0045] Figure 4 is a schematic side view of a partial region of the wax supply device 1 according to the utility model in the area of the wax reservoir 2.
[0046] In Figure 4 It can be seen that the feed inlet 4 of the wax reservoir 2 is located at the top of the wax reservoir 2, and the second end of the circulation loop 3, i.e. the second pipe 12, enters the interior of the wax reservoir 2 via the feed inlet 4. The second pipe 12 of the circulation loop 3 is fixedly connected with a closure cap 19 and extends through a through-hole in the closure cap 19 into the interior of the wax reservoir 2, by means of which the top opening of the wax reservoir 2, here the feed inlet 4, can be closed. In addition, in Figure 4In an embodiment, the closure cap 19 can be connected to a lifting device 22, such as a crane, whereby the closure cap 19 can be lifted from the wax reservoir 2 by the operator when the wax reservoir 2 is exchanged or the interior of the wax reservoir 2 is inspected. As an alternative, it is also conceivable that the feed inlet 4 of the wax reservoir 2 is not located at the top of the wax reservoir 2, but in the upper half region of the side wall of the wax reservoir 2. In this case, the second line 12 is not fixedly connected to the closure cap 19, but can be fluidically connected to the feed inlet 4 of the wax reservoir 2 by means of a pipe joint, for example.
[0047] Figure 4 It is also shown that the discharge outlet 5 of the wax reservoir 2 is located in the lower half region of the side wall of the wax reservoir 2. As an alternative, it is also conceivable that the discharge outlet 5 of the wax reservoir 2 is located at the bottom of the wax reservoir 2. Furthermore, according to an advantageous design, a collection tray 23 is provided below the wax reservoir 2, which serves to receive wax that leaks from the wax reservoir 2 in order to prevent the wax from contaminating the workshop floor.
[0048] The wax supply device according to the disclosure effectively prevents stratification of the wax in the wax reservoir by means of the wax circulation system, which continuously or periodically circulates the wax in the wax reservoir via the circulation loop. Further, the delivery of the wax that has been freed from stratification problems from the wax reservoir to the wax supply tank and subsequently to the wax application device improves the quality of the cavity waxing process.
[0049] It is to be noted that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and "comprising", when used in this specification, specify the presence of stated features, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. In the description of the figures, like reference numbers will be used throughout the various drawings to refer to same or like parts.
[0050] For the sake of easy understanding of the structure of the wax supply apparatus of the present disclosure, the components of the wax supply apparatus are not shown to scale and / or are shown enlarged and / or are shown reduced in the drawings. It can also be understood that if one element is referred to as being on, coupled to, or connected to another element, it can be directly on, coupled to, or connected to the other element, or one or more intervening elements can be present. In contrast, if it is stated herein that an element is "directly on," "directly coupled to," or "directly connected to" another element, it means that no intervening element is present. In addition, the terms "upper," "lower," "inner," "outer," "bottom," and "side," and the like that appear in this application are intended to be relative to the state of use of the wax supply apparatus.
[0051] It can be understood that, although the terms "first," "second," and the like can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element could be termed a second element without departing from the teachings of the present disclosure.
[0052] It can also be considered that all the exemplary embodiments disclosed herein can be arbitrarily combined with each other. Finally, it is to be noted that the above-described embodiments are only for the understanding of the present disclosure and do not constitute a limitation on the scope of protection of the present disclosure. Modifications can be made by those skilled in the art based on the above-described embodiments, and these modifications do not depart from the scope of protection of the present disclosure.
Claims
1. Wax supply apparatus comprising a wax supply tank (7), characterised in that, The wax supply device (1) further comprises a wax circulation system, which comprises: a wax tank (2) for containing a flowable wax; a circulation loop (3) having a first end which is in flow connection with a feed inlet (4) of the wax tank (2) and a second end which is in flow connection with a discharge outlet (5) of the wax tank (2); and a first pump device (6) arranged in the circulation loop (3) which, when activated, causes the wax to pass from the wax tank (2) via the discharge outlet (5) into the circulation loop (3) and ultimately from the circulation loop (3) back to the wax tank (2) via the feed inlet (4), wherein an inlet (15) of the wax supply tank is in flow connection with the discharge outlet (5) of the wax tank (2) via a supply line (8), and an outlet (14) of the wax supply tank (7) is connected to the wax application device via a wax delivery line (18).
2. The wax supply apparatus according to claim 1, characterized by A second pump device (9) is arranged in the supply line (8), between which and the discharge outlet (5) of the wax tank (2) a line branch (10) is provided, from which a first line (11) leads to the discharge outlet (5) of the wax tank (2) and a second line (12) leads to the feed inlet (4) of the wax tank, the first pump device (6) being arranged in the second line (12), from the line branch (10) a third line (13) also branches off, which leads from the line branch (10) to the wax supply tank (7).
3. The wax supply apparatus according to claim 2, characterized in that, A first valve element is arranged in the second line (12) between the line branch (10) and the first pump device (6), and a second valve element is arranged in the second line (12) between the first pump device and the feed inlet (4) of the wax tank.
4. The wax supply apparatus according to claim 2, characterized by The first pump device (6) and the second pump device (9) are identical in construction and are configured as diaphragm pumps.
5. The wax supply apparatus according to claim 1, wherein A line branch (10) is provided in the circulation loop (3) between the first pump device (6) and the feed inlet (4) of the wax tank (2), from which a first line (11) leads to the discharge outlet (5) of the wax tank (2), the first pump device (6) being arranged in the first line (11), and a second line (12) leads to the feed inlet (4) of the wax tank, from the line branch (10) a third line (13) also branches off, which leads from the line branch (10) to the wax supply tank (7).
6. The wax supply apparatus according to claim 5, wherein A first valve element is arranged in the first line (11), a second valve element is arranged in the second line (12), and a third valve element is arranged in the third line (13).
7. The wax supply apparatus according to any one of claims 2 to 6, characterized by The first line (11) and the second line (12) form the circulation loop (3), and the first line (11) and the third line (13) form the supply line (8).
8. The wax supply apparatus according to any one of claims 1 to 6, characterized by A level sensor (20) and a level indicator (21) are arranged in the circulation loop (3); and / or a non-return valve is provided in the circulation loop (3).
9. The wax supply apparatus according to any one of claims 2 to 6, characterized by A level sensor (20) and a level indicator (21) are provided in the first line (11); and / or a non-return valve is provided in the second line (12), which is arranged between the first pump device (6) and the second valve element.
10. The wax supply apparatus according to any one of claims 1 to 6, characterized by The feed inlet (4) of the wax reservoir is located at the top of the wax reservoir (2) or in the upper half region of the side wall of the wax reservoir; and / or the discharge outlet (5) of the wax reservoir is located at the bottom of the wax reservoir (2) or in the lower half region of the side wall of the wax reservoir.
11. The wax supply apparatus according to any one of claims 1 to 6, characterized by The feed inlet (4) of the wax reservoir is located at the top of the wax reservoir (2), the second end of the circulation loop (3) is fixedly connected with a closure cover (19) and extends into the interior of the wax reservoir (2) through a through hole in the closure cover (19), the feed inlet (4) can be closed by the closure cover (19), and the closure cover (19) is connected with a lifting device (22).
12. The wax supply apparatus according to any one of claims 1 to 6, characterized by The first pump device is electrically connected with the electronic control device, the first pump device is provided with an electromagnetic valve (16) and a compressed air regulator (17), and the electromagnetic valve (16) and the compressed air regulator (17) are electrically connected with the electronic control device.
13. The wax supply apparatus according to any one of claims 1 to 6, characterized by A collection tray (23) is arranged below the wax reservoir (2) for receiving the wax leaking from the wax reservoir (2).
14. The wax supply apparatus according to any one of claims 1 to 6, characterized by The wax supply device is a wax supply device for motor vehicle manufacturing.
15. The wax supply apparatus according to any one of claims 1 to 6, characterized by The flowable wax is an oily wax.