Powder pump mounting frame and powder supply center

Abstract

The application discloses a powder pump mounting rack and a powder supply center with the powder pump mounting rack. The powder pump mounting rack comprises a powder pump seat and a limiting rod assembly. The powder pump seat is provided with a plurality of powder pump mounting portions arranged in a queue along a left-right direction. The limiting rod assembly comprises a limiting rod and a limiting rod connecting structure. The limiting rod is arranged along the left-right direction and corresponds to the powder pump mounting portions arranged in the queue. A powder pump limiting space is formed between the limiting rod and the powder pump seat. The limiting rod is mounted on the powder pump seat through the limiting rod connecting structure. The limiting rod connecting structure is configured to adjust the up-down and front-back positions of the limiting rod relative to the powder pump seat. The powder pump mounting rack has strong installation adaptability to powder pumps of different size specifications of spray guns.

Description

Technical Field

[0001] This invention relates to spraying equipment, and particularly to a powder pump mounting bracket and powder supply center. Background Technology

[0002] Existing powder supply centers are equipped with powder hoppers and spray gun powder pump assemblies. The powder hopper stores the powder, and the spray gun powder pump assembly draws the powder from the hopper and supplies it to the spray gun assembly, enabling the spray gun assembly to perform spraying operations. A spray gun assembly typically has multiple spray guns, and correspondingly, the spray gun powder pump assembly also has multiple spray gun powder pumps, which are mainly installed and fixed using powder pump mounting brackets. In the existing technology, spray gun powder pumps come in various sizes, and existing powder pump mounting brackets have poor compatibility with spray gun powder pumps of different sizes. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a powder pump mounting bracket that is highly adaptable to the installation of powder pumps for spray guns of different sizes and specifications.

[0004] The present invention also proposes a powder supply center having the above-mentioned powder pump mounting bracket.

[0005] According to a first aspect of the present invention, a powder pump mounting bracket includes: a powder pump base, the powder pump base having a plurality of powder pump mounting portions arranged in a row along a left-right direction; and a limiting rod assembly including a limiting rod and a limiting rod connecting structure, the limiting rod being arranged in a left-right direction and corresponding to the powder pump mounting portions arranged in the row, a powder pump limiting space being formed between the limiting rod and the powder pump base, the limiting rod being mounted on the powder pump base through the limiting rod connecting structure, and the limiting rod connecting structure being configured to adjust the vertical and front-back positions of the limiting rod relative to the powder pump base.

[0006] According to the powder pump mounting bracket of the present invention, it has at least the following advantages: the powder pump mounting bracket allows the spray gun powder pumps to be installed one-to-one on the powder pump mounting part, thereby forming a row of spray gun powder pumps. The spray gun powder pumps can be pressed and limited by the limiting rods to the powder pump seat, so that multiple spray gun powder pumps arranged in a fixed row can be installed at one time. The installation is quick and convenient, and the installation is stable. Moreover, since the limiting rods can be adjusted in the up and down and front and back positions through the limiting rod connection structure, it is convenient to adapt to spray gun powder pumps of different sizes and specifications, and the installation adaptability is strong.

[0007] According to some embodiments of the present invention, the powder pump base includes a plurality of strip seats, the strip seats are arranged in a left-right direction, each of the strip seats is provided with a row of powder pump mounting parts, the strip seats are arranged at intervals in a front-back direction, and two adjacent strip seats are staggered in height.

[0008] According to some embodiments of the present invention, three strip seats are provided, and the three strip seats are distributed in a triangular pattern.

[0009] According to some embodiments of the present invention, the powder pump base further includes a left connecting plate and a right connecting plate, the left ends of the strip seat are fixed together by the left connecting plate, and the right ends of the strip seat are fixed together by the right connecting plate.

[0010] According to some embodiments of the present invention, the limiting rod connection structure includes a left connecting seat and a right connecting seat. The left end and the right end of the limiting rod are respectively connected to the powder pump seat through the left connecting seat and the right connecting seat. The left connecting seat can adjust the up-down and back-forward positions of the left end of the limiting rod, and the right connecting seat can adjust the up-down and back-forward positions of the right end of the limiting rod.

[0011] According to some embodiments of the present invention, the left connecting seat is provided with a plurality of first gear mounting parts arranged in the front-back direction, the left end of the limiting rod is adapted to connect to different first gear mounting parts, and the position of the left connecting seat relative to the powder pump seat in the front-back direction is continuously adjustable; the right connecting seat is provided with a plurality of second gear mounting parts arranged in the front-back direction, the second gear mounting parts and the first gear mounting parts correspond one-to-one in the left-right direction, the right end of the limiting rod is adapted to be installed on different second gear mounting parts, and the position of the right connecting seat relative to the powder pump seat in the front-back direction is continuously adjustable.

[0012] According to some embodiments of the present invention, the second gear mounting portion is arranged in at least two rows along the vertical direction, and the right-side connecting seat is configured to allow the right end of the limiting rod to be continuously adjusted in the vertical direction.

[0013] According to some embodiments of the present invention, the limiting rod is detachably connected to the left connecting seat and the right connecting seat in the left-right direction. The right end of the limiting rod has a stop portion and a pin hole is provided at the right end of the limiting rod. A locking pin is detachably provided in the pin hole. The locking pin and the stop portion are provided on the left and right sides of the right connecting seat.

[0014] According to a second aspect of the present invention, a powder supply center includes: a machine body; a spray gun powder pump assembly, including the powder pump mounting bracket and the spray gun powder pump described in the first aspect of the present invention, wherein multiple spray gun powder pumps are provided and installed one-to-one with the powder pump mounting part, and the limiting rod presses and limits the spray gun powder pumps arranged in a row against the powder pump seat.

[0015] The powder supply center according to the embodiments of the present invention has at least the following beneficial effects: the powder supply center described above, by adopting the powder pump mounting bracket of the first aspect embodiment of the present invention, can adapt to the installation of powder pumps of different specifications of spray guns.

[0016] According to some embodiments of the present invention, the spray gun powder pump assembly further includes a powder box and a backflush mount. The spray gun powder pump assembly also includes a powder suction pipe. Multiple powder suction pipes are provided and correspond one-to-one with the spray gun powder pump. The powder suction pipe is connected to the powder pump mount and communicates with the suction end of the corresponding spray gun powder pump. The powder suction pipe is vertically arranged, and a suction port is provided at its lower end. The powder box is disposed on the machine body and has an insertion port for inserting the powder suction pipe. The backflush mount is disposed on the lower side of the powder box and has backflush holes corresponding one-to-one with the powder suction pipes, as well as a compressed air input channel communicating with the backflush holes. The powder box can be disposed on the lower side of the spray gun powder pump assembly and can be moved away from the lower side of the spray gun powder pump assembly. The spray gun powder pump assembly is movable up and down and is connected to a first up-and-down driver that can drive its up-and-down movement. The backflush mount is movable up and down and is connected to a second up-and-down driver that can drive its up-and-down movement.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is one of the perspective views of the powder pump mounting bracket according to an embodiment of the present invention;

[0020] Figure 2 This is a second perspective view of the powder pump mounting bracket according to an embodiment of the present invention;

[0021] Figure 3 for Figure 1 Enlarged view of point A;

[0022] Figure 4 for Figure 1 Enlarged view of point B;

[0023] Figure 5 for Figure 2 Enlarged view of point C;

[0024] Figure 6 This is a three-dimensional schematic diagram of the powder supply center according to an embodiment of the present invention;

[0025] Figure 7 for Figure 6 A magnified view of a portion of the image;

[0026] Figure 8 for Figure 7 The diagram shows the structure after the powder box has been removed.

[0027] Figure label:

[0028] Powder pump base 100, powder pump mounting part 110, strip seat 120, left connecting plate 130, right connecting plate 140;

[0029] Limiting rod assembly 200, limiting rod 210, limiting rod connecting structure 220, left connecting seat 221, right connecting seat 222, first gear mounting part 2211, second gear mounting part 2221, left base 2212, connector 2213, insertion hole 2214, left mounting strip hole 2215, connecting channel 2222, right mounting strip hole 2223, stop part 211, pin hole 212;

[0030] Fuselage 1;

[0031] Spray gun powder pump assembly 2, powder suction pipe 21;

[0032] Toner box 3, insertion port 31;

[0033] Backflush seat 4, backflush hole 41;

[0034] First up / down driver 5;

[0035] Second upper and lower drivers 6. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0038] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0040] Reference Figures 1 to 5 A powder pump mounting bracket includes a powder pump base 100 and a limiting rod assembly 200. The powder pump base 100 has multiple powder pump mounting portions 110 arranged in a left-right queue. The limiting rod assembly 200 includes a limiting rod 210 and a limiting rod connecting structure 220. The limiting rod 210 is arranged in a left-right direction and corresponds to the powder pump mounting portions 110 arranged in the queue; that is, each powder pump mounting portion 110 in the queue can correspond to one part of the limiting rod 210. A powder pump limiting space is formed between the limiting rod 210 and the powder pump base 100. The limiting rod 210 is mounted to the powder pump base 100 through the limiting rod connecting structure 220, which is configured to adjust the vertical and horizontal, and front-back positions of the limiting rod 210 relative to the powder pump base 100.

[0041] The powder pump mounting bracket described above allows the powder pumps of the spray guns to be installed one-to-one on the powder pump mounting part 110, thus forming a row of powder pumps. The powder pumps of the spray guns can be pressed and limited by the limiting rod 210 against the powder pump seat 100, so that multiple powder pumps of the spray guns arranged in a fixed row can be installed at one time. The installation is quick and convenient, and the installation is stable. Moreover, since the limiting rod 210 can be adjusted up and down and back and forth through the limiting rod connecting structure 220, it is easy to adapt to powder pumps of different sizes and specifications, and the installation adaptability is strong.

[0042] In this embodiment, the powder pump mounting part 110 is a mounting hole. Of course, it is conceivable that the powder pump mounting part 110 is not limited to a mounting hole. For example, it can be a clamping structure. Specifically, it can be configured adaptively according to the specific structure of the spray gun powder pump.

[0043] In this embodiment, the powder pump base 100 includes a plurality of strip seats 120 extending in the left-right direction. Each strip seat 120 is provided with a row of powder pump mounting parts 110. The strip seats 120 are arranged at intervals in the front-back direction, and two adjacent strip seats 120 are staggered in height. With the above structure, since the adjacent strip seats 120 are staggered in height, the heights of the corresponding spray gun powder pumps are different, which facilitates the staggering of the spray gun powder pump connecting pipes and avoids pipe interference.

[0044] In this embodiment, three strip seats 120 are provided, and the three strip seats 120 are distributed in a triangle, thus making the structure simple.

[0045] In this embodiment, the powder pump base 100 also includes a left connecting plate 130 and a right connecting plate 140. The left ends of the strip base 120 are fixed together by the left connecting plate 130, and the right ends of the strip base 120 are fixed together by the right connecting plate 140, so that the strip bases 120 are connected together to form a structurally stable component.

[0046] In this embodiment, the limiting rod connection structure 220 includes a left connecting seat 221 and a right connecting seat 222. The left and right ends of the limiting rod 210 are connected to the powder pump base 100 via the left connecting seat 221 and the right connecting seat 222, respectively. The left connecting seat 221 can adjust the up-down and back-forward positions of the left end of the limiting rod 210, and the right connecting seat 222 can adjust the up-down and back-forward positions of the right end of the limiting rod 210. With the above structure, the left and right ends of the limiting rod 210 are connected to the powder pump base 100 via corresponding connecting seats, providing support and balance; both the left and right ends of the limiting rod 210 can be adjusted in terms of up-down and back-forward positions to maintain balance.

[0047] In this embodiment, the left connecting seat 221 is provided with a plurality of first gear mounting portions 2211 arranged in the front-back direction. The left end of the limiting rod 210 is adapted to connect to different first gear mounting portions 2211. The position of the left connecting seat 221 relative to the powder pump seat 100 in the front-back direction is continuously adjustable. The right connecting seat 222 is provided with a plurality of second gear mounting portions 2221 arranged in the front-back direction. The second gear mounting portions 2221 and the first gear mounting portions 2211 correspond one-to-one in the left-right direction. The right end of the limiting rod 210 is adapted to be installed on different second gear mounting portions 2221. The position of the right connecting seat 222 relative to the powder pump seat 100 in the front-back direction is continuously adjustable. With the above structure, a combined adjustment method of gear adjustment and continuous position adjustment can be formed in the front-back direction. The adjustment function is detailed, and it is convenient to perform quick coarse adjustment and fine adjustment.

[0048] In this embodiment, at least two rows of second-position mounting portions 2221 are arranged vertically, and the right-side connecting seat 222 is configured to allow the right end of the limiting rod 210 to be continuously adjusted vertically. In the up-down direction (i.e., vertical), the limiting rod 210 can be installed on a second-position mounting portion 2221 of a suitable height. The left-side connecting seat 221 can be adjusted adaptively to match the height of the selected second-position mounting portion 2221, and the right-side connecting seat 222 can be continuously adjusted vertically, thereby facilitating the adjustment of the height position of the limiting rod 210 to obtain a better installation effect.

[0049] In this embodiment, the left connecting seat 221 includes a left base 2212 and a connector 2213. The first gear mounting part 2211 of the left base 2212 is a gear screw hole for the left base 2212. The connector 2213 is provided with a screw part adapted to the gear screw hole and an insertion hole 2214 for the left end of the limiting rod 210 to be inserted. The left base 2212 is provided with a left mounting strip hole 2215. The powder pump seat 100 is provided with a left screw hole corresponding to the left mounting strip hole 2215. A left fixing screw passes through the left mounting strip hole 2215 and is threaded into the left screw hole to fasten the left base 2212 to the powder pump seat 100. The right connecting seat 222 is a vertically arranged plate, and the second gear mounting part 222... 1 is a gear hole opened on the right connecting seat 222. A connecting channel 2222 is provided between the gear holes to connect the gear holes. The gear holes are suitable for the insertion of the limiting rod 210 and the limiting rod 210 can switch positions to different gear holes through the connecting channel 2222. The right connecting seat 222 is provided with a right mounting strip hole 2223 that is inclined relative to the vertical direction. The powder pump seat 100 is provided with a right screw hole corresponding to the right mounting strip hole 2223. A right fixing screw is passed through the right mounting strip hole 2223. The right fixing screw is threaded to the right screw hole and is used to fasten the right connecting seat 222 to the powder pump seat 100. The limiting rod 210 is detachably passed through the insertion hole 2214 of the connector 2213 and the gear hole of the right connecting seat 222.

[0050] For the left connecting seat 221, the forward and backward adjustment of the limiting rod 210 can be achieved by installing the connecting piece 2213 into different position screw holes. The vertical position adjustment can be achieved by adjusting the screw depth of the connecting piece 2213. The continuous forward and backward adjustment can be achieved through the left mounting slot 2215 (by adjusting the position of the left fixing screw in the left mounting slot 2215). For the right connecting seat 222, the up and down and forward and backward adjustment of the limiting rod 210 can be achieved by installing the limiting rod 210 into different up and down and forward and backward position screw holes. The continuous up and down and forward and backward adjustment can be achieved through the oblique right mounting slot 2223 (by adjusting the position of the right fixing screw in the right mounting slot 2223).

[0051] Of course, it is conceivable that in other embodiments, other implementation structures can also be adopted in order to achieve the position adjustment of the limit rod 210; for example, for cases where gear position adjustment is required, multiple clamping components arranged in a row can be used to clamp the limit rod 210, thereby forming different gear positions; for cases where continuous adjustment is required, a sliding sleeve combined with a fastening screw can also be used; it is understood that there are many other implementation methods for adjusting the position of components in the art, and those skilled in the art can configure them according to the actual situation.

[0052] In this embodiment, the limiting rod 210 is detachably connected to the left connecting seat 221 and the right connecting seat 222 in a left-right direction. The right end of the limiting rod 210 has a stop portion 211 and a pin hole 212. A locking pin is detachably installed in the pin hole 212. The locking pin and the stop portion 211 are located on the left and right sides of the right connecting seat 222. To disassemble the limiting rod 210, remove the locking pin and then pull the limiting rod 210 out in a left-right direction. During installation, insert the limiting rod 210 into the left connecting seat 221 and the right connecting seat 222 in a left-right direction, and then install the locking pin to limit the limiting rod 210. The above-described assembly and disassembly structure is simple, easy to implement, and ensures a stable installation position for the limiting rod 210.

[0053] Reference Figures 6 to 8 The powder supply center includes a machine body 1 and a spray gun powder pump assembly 2. The spray gun powder pump assembly 2 includes the aforementioned powder pump mounting bracket and a spray gun powder pump (not shown in the attached drawings). Multiple spray gun powder pumps are provided and installed one-to-one on the powder pump mounting part 110. A limiting rod 210 presses and limits the spray gun powder pumps arranged in a queue against the powder pump seat 100. Because the powder supply center adopts the powder pump mounting bracket of the first aspect embodiment of the present invention, it can accommodate the installation of spray gun powder pumps of different specifications.

[0054] In this embodiment, the system also includes a powder box 3 and a back-blowing seat 4. The spray gun powder pump assembly 2 further includes a powder suction pipe 21. Multiple powder suction pipes 21 are provided and correspond one-to-one with the spray gun powder pump. The powder suction pipe 21 is connected to the powder pump seat 100 and communicates with the suction end of the corresponding spray gun powder pump. The powder suction pipe 21 is vertically arranged and has a suction port at its lower end. The powder box 3 is located on the machine body 1 and has an insertion port 31 for inserting the powder suction pipe 21. The back-blowing seat 4 is located on the powder box 3. On the lower side, the backflush seat 4 is provided with backflush holes 41 corresponding to the powder suction pipe 21 and a compressed air input channel communicating with the backflush holes 41. The powder box 3 can be located on the lower side of the spray gun powder pump assembly 2 and can be moved away from the lower side of the spray gun powder pump assembly 2. The spray gun powder pump assembly 2 can move up and down. The spray gun powder pump assembly 2 is connected to a first up and down driver 5 that can drive its up and down movement. The backflush seat 4 can move up and down. The backflush seat 4 is connected to a second up and down driver 6 that can drive its up and down movement.

[0055] During normal powder spraying output, the first up-and-down driver 5 drives the spray gun powder pump assembly 2 downward, so that the powder suction pipe 21 is inserted into the powder box 3 through the insertion port 31. When it is necessary to backflush the air passage for powder spraying cleaning, the powder box 3 can be moved away from the lower side of the spray gun powder pump assembly 2, so that the powder suction pipe 21 can be vertically aligned with the corresponding backflush port 41. At this time, the second up-and-down driver 6 can drive the backflush seat 4 upward, so that the powder suction pipe 21 is connected with the corresponding backflush port 41. Compressed gas is input through the compressed gas input channel, so that the powder suction pipe 21 can be backflushed to complete the backflush cleaning. With the above structure, the spray gun powder pump assembly 2 and the backflush seat 4 are driven independently by the first up-and-down driver 5 and the second up-and-down driver 6, respectively. This avoids the two-stage drive structure of the spray gun powder pump assembly 2 in the prior art (the first stage drive is used to insert the powder suction pipe 21 into the powder box 3, and the second stage drive is used to connect the powder suction pipe 21 with the corresponding backflush hole 41). This avoids the problem that the spray gun powder pump assembly 2 may shift downwards after completing the first stage of the stroke due to poor driver positioning, causing the powder suction pipe 21 to poke the bottom of the powder box 3. In the embodiments, the first up-and-down driver 5 and the second up-and-down driver 6 can be cylinders, or, in some embodiments, electric cylinders.

[0056] In some embodiments, the powder box 3 can be configured to be detachable, so that it can be moved out from the corresponding position; or in some embodiments, the powder box 3 can be configured to be movable, so that it can also be moved out from the corresponding position.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A powder pump mounting bracket, characterized in that, include: A powder pump base (100) is provided with a plurality of powder pump mounting parts (110), which are arranged in a row in the left-right direction; The limiting rod assembly (200) includes a limiting rod (210) and a limiting rod connecting structure (220). The limiting rod (210) is arranged in the left-right direction and corresponds to the powder pump mounting parts (110) arranged in a row. A powder pump limiting space is formed between the limiting rod (210) and the powder pump seat (100). The limiting rod (210) is installed on the powder pump seat (100) through the limiting rod connecting structure (220). The limiting rod connecting structure (220) is configured to adjust the up-down and front-back positions of the limiting rod (210) relative to the powder pump seat (100). The limiting rod connecting structure (220) includes a left connecting seat (221) and a right connecting seat (222). The left and right ends of the limiting rod (210) are connected to the powder pump seat (100) through the left connecting seat (221) and the right connecting seat (222), respectively. The left connecting seat (221) can adjust the up-down and back-forward positions of the left end of the limiting rod (210), and the right connecting seat (222) can adjust the up-down and back-forward positions of the right end of the limiting rod (210). The left connecting seat (221) is provided with a plurality of first gear mounting parts (2211) arranged in the front-back direction. The limiting rod (210) The left end of the 10) is adapted to be connected to different first gear mounting parts (2211), and the position of the left connecting seat (221) relative to the powder pump seat (100) in the front-back direction is continuously adjustable; the right connecting seat (222) is provided with a plurality of second gear mounting parts (2221) arranged in the front-back direction, and the second gear mounting parts (2221) and the first gear mounting parts (2211) correspond one-to-one in the left-right direction; the right end of the limiting rod (210) is adapted to be installed on different second gear mounting parts (2221), and the position of the right connecting seat (222) relative to the powder pump seat (100) in the front-back direction is continuously adjustable.

2. The powder pump mounting bracket according to claim 1, characterized in that: The powder pump base (100) includes multiple strip seats (120), which extend in the left and right direction. Each strip seat (120) is provided with a row of powder pump mounting parts (110). The strip seats (120) are arranged at intervals in the front and back direction, and two adjacent strip seats (120) are staggered in height.

3. The powder pump mounting bracket according to claim 2, characterized in that: There are three strip seats (120), and the three strip seats (120) are arranged in a triangular pattern.

4. The powder pump mounting bracket according to claim 2 or 3, characterized in that: The powder pump base (100) also includes a left connecting plate (130) and a right connecting plate (140). The left end of the strip seat (120) is fixed together with each other through the left connecting plate (130), and the right end of the strip seat (120) is fixed together with each other through the right connecting plate (140).

5. The powder pump mounting bracket according to claim 1, characterized in that: The second gear mounting part (2221) is arranged in at least two rows along the vertical direction, and the right side connecting seat (222) is configured to allow the right end of the limiting rod (210) to be continuously adjusted in the vertical direction.

6. The powder pump mounting bracket according to claim 1, characterized in that: The limiting rod (210) is detachably connected to the left connecting seat (221) and the right connecting seat (222) in the left-right direction. The right end of the limiting rod (210) has a stop part (211) and a pin hole (212) is provided at the right end of the limiting rod (210). A locking pin is detachably provided in the pin hole (212). The locking pin and the stop part (211) are provided on the left and right sides of the right connecting seat (222).

7. A powder supply center, characterized in that, include: fuselage (1); The spray gun powder pump assembly (2) includes the powder pump mounting bracket as described in any one of claims 1 to 6 and the spray gun powder pump, wherein multiple spray gun powder pumps are provided and installed one-to-one on the powder pump mounting part (110), and the limiting rod (210) presses and limits the spray gun powder pumps arranged in a row against the powder pump seat (100).

8. The powder supply center according to claim 7, characterized in that: It also includes a powder box (3) and a back-blowing seat (4). The spray gun powder pump assembly (2) also includes a powder suction pipe (21). Multiple powder suction pipes (21) are provided and correspond one-to-one with the spray gun powder pump. The powder suction pipe (21) is connected to the powder pump seat (100). The powder suction pipe (21) is connected to the suction end of the corresponding spray gun powder pump. The powder suction pipe (21) is vertically arranged. The lower end of the powder suction pipe (21) is provided with a suction port. The powder box (3) is provided on the machine body (1). The powder box (3) is provided with an insertion port (31) for inserting the powder suction pipe (21). The back-blowing seat (4) is provided on the machine body (1). On the lower side of the powder box (3), the backflush seat (4) is provided with backflush holes (41) corresponding to the powder suction pipe (21) and a compressed air input channel communicating with the backflush holes (41). The powder box (3) can be located on the lower side of the spray gun powder pump assembly (2) and can be moved away from the lower side of the spray gun powder pump assembly (2). The spray gun powder pump assembly (2) can move up and down. The spray gun powder pump assembly (2) is connected to a first up and down driver (5) that can drive its up and down movement. The backflush seat (4) can move up and down. The backflush seat (4) is connected to a second up and down driver (6) that can drive its up and down movement.

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