Continuous output device

Abstract

The utility model discloses a continuous output device, which relates to the field of filling operation, and comprises a receiving component, a loading component, a blowing component and an output component, the object carrying assembly comprises an object carrying disc and a translation driver, the translation driver drives the object carrying disc to move horizontally, and object carrying grooves which are distributed at equal intervals and extend linearly are formed in the object carrying disc; the blowing assembly comprises an output blowing nozzle, the output assembly is provided with a conveying channel, compressed air is blown through the output blowing nozzle, the products in the carrying groove are blown to the conveying channel through the product outlet, and the products are output outwards along the conveying channel. According to the utility model, products in a matrix arrangement state can be output in a continuous mode, automatic continuous cover supply is realized, and the problem of low production efficiency of the existing cover supply mode is solved.

Description

[Technical Field]

[0001] This utility model belongs to the field of packaging technology, specifically relating to the field of filling operations. [Background Technology]

[0002] In the filling process, bottle caps are treated as finished parts and participate in production activities, allowing them to be pre-stocked and then used during the filling process. To maintain the integrity of the bottle caps and prevent them from colliding, they are arranged in rows within a mold to preserve their integrity. During the filling process, each row of caps is then placed into the cap delivery channel. This method requires manual labor, resulting in low production efficiency and high labor intensity. [Utility Model Content]

[0003] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a continuous output device for realizing automated continuous cap supply, thereby solving the problem of low production efficiency of the existing cap supply method.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A continuous output device, comprising:

[0006] The receiving component is provided with a motion mechanism and an adsorption assembly. The motion mechanism drives the adsorption assembly to move between a first position and a second position. The adsorption assembly adsorbs the product at the first position and loads the product onto the tray at the second position.

[0007] The loading assembly includes a loading tray and a translation driver. The translation driver drives the loading tray to move horizontally. The loading tray is provided with loading slots that are evenly distributed and extend in a straight line. The extension direction of the loading slots is perpendicular to the movement direction of the loading tray. The first end of the loading slot is provided with an air inlet and the second end is provided with a product outlet.

[0008] A blowing assembly is disposed on the first side of the loading groove, and the blowing assembly includes an output nozzle that is connected to an air inlet.

[0009] An output component is provided on the second side of the loading trough, and the output component is provided with a conveying channel, which is connected to the product outlet;

[0010] Compressed air is blown into the air inlet through the output nozzle, and the product in the loading tank is blown into the conveying channel through the product outlet. The product is then output outward along the conveying channel.

[0011] Preferably, the blowing assembly further includes a limiting plate that is set corresponding to the output nozzle and extends along the extension direction of the loading groove. When the loading groove corresponds to the position of the output nozzle, the limiting plate covers the space above the loading groove.

[0012] Preferably, the blowing assembly further includes a pre-tightening nozzle arranged side by side on one side of the output nozzle. The distance between the pre-tightening nozzle and the output nozzle is equal to the distance between two adjacent loading slots. When the loading slots correspond to the positions of the pre-tightening nozzles, the pre-tightening nozzles blow compressed air into the air inlet, and the compressed air pushes the products to be tightly arranged in the loading slots.

[0013] Preferably, a baffle extending along the moving direction of the loading tray is provided on the outer side of the second end of the loading tray. The baffle is fixed relative to the loading tray and is used to block the product outlet. The baffle has a notch corresponding to the position of the output nozzle so that the product outlet can be connected to the conveying channel.

[0014] Preferably, the first end of the loading groove is provided with a limiting part to restrict the product from falling out of the first end of the loading groove.

[0015] Preferably, the limiting part is symmetrically arranged on both sides of the air inlet.

[0016] Preferably, the width of the loading groove is provided with guide slopes.

[0017] Preferably, the adsorption component has suction cups arranged in a rectangular array, the suction cup array corresponding to the rectangular array of products on the mold box, and the spacing between two rows of suction cups is equal to the spacing between two adjacent loading slots.

[0018] Preferably, the motion mechanism includes a translation component and a lifting component, wherein the translation component drives the lifting component to move horizontally, and the lifting component drives the adsorption component to move up and down.

[0019] Preferably, the translation component includes a first translation slide rail and a first translation drive belt, and the lifting component is provided with a first translation slider that slides with the first translation slide rail and a first fixing part that is fixed to the first translation drive belt; and / or, the translation driver includes a second translation slide rail and a second translation drive belt, and the loading tray is provided with a second translation slider that slides with the second translation slide rail and a second fixing part that is fixed to the second translation drive belt.

[0020] The present invention adopts the above technical solution and has the following beneficial effects:

[0021] 1. In the receiving component, the adsorption assembly is driven by the motion mechanism to move between a first position and a second position. The adsorption assembly sucks up the bottle cap in the mold box at the first position and places the bottle cap on the carrier plate at the second position.

[0022] Because the loading tray has equally spaced and linearly extending loading slots, each slot contains a row of products, the products can be arranged in a rectangular array on the loading tray. A blowing component is located on the first side of the loading slots, and an output component is located on the second side. The output nozzles of the blowing component blow the products from the loading slots to the conveying channel of the output component, where they are then output outwards. In this way, the translational driver moves the loading tray horizontally by one station each time, which is the distance between two adjacent loading slots. This allows the products in each loading slot to be blown to the conveying channel of the output component. By continuously performing this process, products can be continuously output from a matrix arrangement, thus achieving automated continuous cap feeding and solving the problem of low production efficiency in existing cap feeding methods.

[0023] 2. The limiting plate is set to correspond to the output nozzle and extends along the extension direction of the loading groove. When the loading groove and the output nozzle are aligned, the limiting plate covers the space above the loading groove to form a relatively closed structure in the loading groove. This makes it easier to maintain a strong blowing force of the airflow from the output nozzle on the product in the loading groove, so as to quickly and thoroughly blow the product in the loading groove into the conveying channel.

[0024] 3. A pre-tightening nozzle is set up side by side with the output nozzle. Before the output nozzle blows the product into the loading slot, the pre-tightening nozzle works first. When the loading slot and the pre-tightening nozzle are aligned, the pre-tightening nozzle blows compressed air towards the loading slot. The compressed air pushes the product to be tightly arranged in the loading slot, so that the product in the loading slot can be blown into the conveying channel by the output nozzle.

[0025] 4. A baffle is provided on the second side of the loading trough. The baffle is fixed relative to the loading tray and is used to block the product outlet to prevent the product from falling out of the second end of the loading trough. When compressed air is blown into the air inlet through the pre-tightening nozzle, the compressed air pushes the product to be tightly arranged in the loading trough due to the obstruction of the baffle. Furthermore, the baffle has a notch corresponding to the position of the output nozzle so that the product outlet can be connected with the conveying channel. Therefore, when compressed air is blown into the air inlet through the output nozzle, the product in the loading trough can be blown into the conveying channel after passing through the product outlet and the notch.

[0026] 5. A limiting part is provided at the first end of the loading slot to restrict the product from coming out of the first end of the loading slot. The limiting part is symmetrically arranged on both sides of the air inlet, so that a gap is left in the middle of the width to form the air inlet.

[0027] 6. The upper opening of the loading tank is provided with guide ramps on both sides, which form a funnel-shaped structure to guide the product and facilitate the product to be placed into the loading tank from the adsorption component.

[0028] 7. The adsorption component is equipped with suction cups arranged in a rectangular array, which correspond to the rectangular array of products on the mold box. The distance between two rows of suction cups is equal to the distance between two adjacent loading slots. Therefore, the adsorption component can accurately adsorb each product on the mold box in the first position, and in the second position, the rows of products can be placed into the loading slots accordingly.

[0029] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0030] The utility model will be further described below with reference to the accompanying drawings:

[0031] Figure 1 This is a schematic diagram of the structure of a continuous output device according to the present invention;

[0032] Figure 2 This is a partial structural schematic diagram of a continuous output device according to the present invention;

[0033] Figure 3 This is a partial structural schematic diagram of a continuous output device according to the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the tray;

[0035] Figure 5 This is a schematic diagram of the output component;

[0036] Figure 6 This is a cross-sectional view of the output component;

[0037] Figure 7 A top view of the loading assembly and output component when two pre-tightened nozzles are installed;

[0038] Reference numerals: Receiving component 1, Adsorption assembly 11, Suction cup 111, Translation assembly 12, First translation slide rail 121, First translation drive belt 122, Lifting assembly 13, Lifting motor 131, Lifting rod 132, Fixed base plate 133, Loading assembly 2, Loading tray 21, Loading groove 211, Air inlet 212, Limiting part 213, Product outlet 214, Guide slope 215, Translation driver 22, Second translation slide rail 221, Second translation drive belt 222, Bottle cap 23, Output component 3, Blowing assembly 31, Output nozzle 311, Pre-tightening nozzle 312, Output assembly 32, Conveying channel 321, Conveying belt 322, Transition chamber 323, Transition surface 324, Arc-shaped notch 325, Limiting plate 33, Baffle 34, Mold box 4, Mold groove 41.

Detailed Implementation Methods

[0039] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0040] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0041] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "first side" and "second side" indicating orientation or positional relationship are based solely on the orientation or positional relationship shown in the drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0044] like Figure 1 and Figure 2 As shown, the mold box 4 has mold slots 41 arranged in a rectangular array, each slot 41 can hold one product. Here, bottle cap 23 is used as an example. The bottle caps are placed in the mold box in rows, and during the filling operation, each row of bottle caps is placed in the bottle cap conveying channel. To achieve continuous conveying of bottle caps from the mold box to the bottle cap conveying channel, refer to... Figures 1 to 6 As shown, this utility model provides a continuous output device, including:

[0045] The receiving component 1 is provided with a motion mechanism and an adsorption component 11. The motion mechanism drives the adsorption component 11 to move between a first position and a second position. The adsorption component adsorbs the product at the first position and loads the product onto the loading tray 21 at the second position.

[0046] The loading assembly 2 includes a loading tray 21 and a translation driver 22. The translation driver 22 drives the loading tray 21 to move horizontally. The loading tray 21 is provided with loading slots 211 that are evenly distributed and extend in a straight line. The extension direction of the loading slots is perpendicular to the moving direction of the loading tray. The first end of the loading slot is provided with an air inlet 212 and the second end is provided with a product outlet 214.

[0047] Output component 3 includes a blowing assembly 31 and an output assembly 32. The blowing assembly 31 is located on the first side of the loading slot and includes an output nozzle 311 that is connected to the air inlet 212. The output assembly 32 is located on the second side of the loading slot and has a conveying channel 321 that is connected to the product outlet 214.

[0048] Compressed air is blown into the air inlet through the outlet nozzle, and the products in the loading tank are blown into the conveying channel through the product outlet. The products are arranged in rows in the conveying channel and output outward along the conveying channel.

[0049] During the horizontal movement of the tray, it reciprocates on both sides of the output nozzle, and there is a loading station on the first side of the output nozzle. After loading the product at the loading station, the tray moves away from the loading station.

[0050] In the above technical solution, the motion mechanism of the receiving component and the adsorption assembly cooperate to load the product onto the carrying tray. Since the carrying tray has equally spaced and linearly extending carrying slots, each slot contains a row of products, allowing the products to be arranged in a rectangular array. The output component includes a blowing assembly and an output assembly located on the first and second sides of the carrying slots, respectively. The output nozzle connects to the air inlet, and the conveying channel connects to the product outlet, thus forming a continuous conveying channel. Compressed air is blown through the output nozzle to the air inlet, blowing the products in the carrying slots through the product outlet to the conveying channel, where the products are output outwards.

[0051] Corresponding to the aforementioned continuous output device, a continuous output method is provided, which uses the aforementioned continuous output device to achieve continuous product output, including the following steps:

[0052] At the loading station, the motion mechanism of the receiving component and the adsorption assembly work together to load the product onto the loading tray;

[0053] The translational driver drives the pallet to move away from the loading station. First, the first pallet in the direction of movement aligns with the output nozzle. Then, compressed air is blown into the air inlet through the output nozzle. The product in the pallet is blown into the conveying channel through the product outlet. The product is then output outward along the conveying channel.

[0054] The translation driver drives the tray to move in a stepping motion. Each movement is equal to the distance between two adjacent trays, enabling continuous output of the products loaded on the tray.

[0055] After the products loaded on the tray are continuously output, the translation driver drives the tray to move back to the loading station, where the receiving component loads the products onto the tray.

[0056] Then, the above steps can be repeated to achieve continuous output of the product.

[0057] In the above technical solution, before the translational driver drives the pallet to return to the loading station, the adsorption component can wait in advance at the loading station. After the translational driver drives the pallet to the loading station, the adsorption component immediately descends at the loading station and loads the product onto the pallet.

[0058] In some embodiments, to ensure that the compressed air blown by the output nozzle can completely blow the product in the loading slot into the conveying channel, the continuous output device also includes a limiting plate 33 that is positioned corresponding to the output nozzle and extends along the extension direction of the loading slot. When the loading slot aligns with the output nozzle, the limiting plate covers the space above the loading slot to form a relatively closed structure within the loading slot. This facilitates maintaining a strong blowing force of the airflow from the output nozzle onto the product in the loading slot, thereby quickly and thoroughly blowing the product into the conveying channel. The two ends of the limiting plate can be connected to the blowing assembly and the output assembly, respectively.

[0059] like Figure 3 As shown, in some embodiments, the blowing assembly 31 further includes a pre-tightening nozzle 312 arranged side by side on one side of the output nozzle 311 (near the loading station side). The distance between the pre-tightening nozzle 312 and the output nozzle 311 is equal to the distance between two adjacent loading slots. When the loading slots correspond to the positions of the pre-tightening nozzles, the pre-tightening nozzles blow compressed air into the air inlet, and the compressed air pushes the products to be tightly arranged in the loading slots.

[0060] like Figure 7As shown, in some embodiments, the blowing assembly 31 has two pre-tightening nozzles 312 arranged side by side on both sides of the output nozzle 311. The distance between the pre-tightening nozzles 312 and the output nozzle 311 is equal to the distance between two adjacent loading slots. When the loading tray moves step by step away from the loading station, when the loading slot corresponds to the position of the first pre-tightening nozzle (the pre-tightening nozzle near the loading station), the first pre-tightening nozzle blows compressed air into the air inlet. The compressed air pushes the products to be tightly arranged in the loading slot.

[0061] The output nozzle blows compressed air into the air inlet, conveying the product in the loading tray to the conveyor channel via the product outlet. The loading tray then moves one station with the loading plate, aligning with the second pre-tightening nozzle. If product remains in the loading tray, the second pre-tightening nozzle blows compressed air into the air inlet to expel the remaining product. Alternatively, a recovery channel can be installed side-by-side on one side of the output assembly to collect any remaining product.

[0062] Furthermore, a baffle 34 extending along the moving direction of the loading tray is provided on the second side of the loading tray. The baffle 34 is fixed relative to the loading tray and is used to block the product outlet. The baffle 34 has a notch corresponding to the output nozzle position so that the product outlet can connect with the conveying channel. Of course, a baffle can be set on each side of the output component, leaving a gap in the middle corresponding to the output component position to form a notch. The baffle blocks the product outlet to restrict the product from coming out of the second end of the loading tray. And when the pre-tightening nozzle blows compressed air into the air inlet, the compressed air pushes the product to be tightly arranged in the loading tray due to the obstruction of the baffle. The baffle has a notch corresponding to the output nozzle position, so when compressed air is blown into the air inlet through the output nozzle, the product in the loading tray can be blown into the conveying channel through the product outlet and the notch.

[0063] This embodiment takes the continuous supply of bottle caps as an example. The bottle caps are placed vertically, and in the horizontal side view, the bottle caps are rectangular. Correspondingly, the cross-section of the loading trough is also roughly rectangular. At the same time, the air outlet of the air inlet 212, the output nozzle 311, and the pre-tightening nozzle 312 described below are all rectangular structures. In this way, the air outlet of the output nozzle and the pre-tightening nozzle matches the air inlet, avoiding excessive leakage at the docking point. The compressed air is basically completely blown into the loading trough, ensuring sufficient blowing force to blow the entire row of products in the loading trough into the conveying channel.

[0064] like Figure 4As shown, the first end of the loading groove 211 is provided with a limiting part 213 to prevent the product from detaching from the first end of the loading groove. The limiting part 213 is symmetrically arranged on both sides of the width of the first end of the loading groove, with a gap left in the middle of the width to form an air inlet 212. In addition, the upper opening of the loading groove is provided with guide slopes 215 on both sides of the width, and the guide slopes on both sides form a funnel-shaped structure to guide the product, so as to facilitate the product being placed into the loading groove from the adsorption component.

[0065] Specifically, the adsorption component 11 has suction cups 111 arranged in a rectangular array, corresponding to the rectangular array of products on the mold box 4. The distance between two rows of suction cups is equal to the distance between two adjacent loading slots. Therefore, the adsorption component can accurately adsorb each product on the mold box at the first position, and at the second position, the rows of products can be placed into the loading slots accordingly.

[0066] Specifically, the motion mechanism includes a translation component 12 and a lifting component 13. The translation component 12 drives the lifting component 13 to move horizontally, and the lifting component 13 drives the adsorption component 11 to move up and down. The translation component 12 includes a first translation slide rail 121, a first translation drive belt 122, and a first translation motor. The first translation motor drives the first translation drive belt 122. The lifting component 13 has a first translation slider that slides with the first translation slide rail and a first fixing part that is fixed to the first translation drive belt. Therefore, the first translation drive belt drives the lifting component to achieve translation. The lifting component 13 includes a lifting motor 131 or a cylinder, a lifting rod 132, and a fixed base plate 133. The lifting motor 131 or the cylinder is fixed to the fixed base plate, which is connected to the first translation slider. The lower end of the lifting rod 132 is connected to the adsorption component. The lifting motor 131 or the cylinder drives the lifting rod 132 to move up and down, thereby driving the adsorption component to move up and down. It is understandable that other translation components in the existing technology can also be used to achieve translation, and other lifting components in the existing technology can also be used to achieve lifting.

[0067] Specifically, the translation driver 22 includes a second translation slide rail 221, a second translation drive belt 222, and a second translation motor. The second translation motor drives the second translation drive belt 222. The tray 21 is provided with a second translation slider that slides with the second translation slide rail and a second fixing part that is fixed to the second translation drive belt. Therefore, the second translation drive belt drives the tray to translate, and the forward and reverse rotation of the second translation motor realizes the reciprocating motion of the tray on both sides of the output nozzle. It is understood that other translation drivers in the prior art can also be used to realize the reciprocating horizontal movement of the tray, such as a cylinder, or a motor that converts rotational motion into translational movement via an intermediate transmission conversion mechanism.

[0068] In some of these embodiments, such as Figure 5 and Figure 6As shown, the output component includes a transition chamber 323 and a conveyor belt 322. A conveying channel 321 is located inside the transition chamber, with an opening at its bottom. The conveyor belt 322 includes a straight conveying section and an arc-shaped transition section, formed by tensioning two pulleys. The straight conveying section is embedded within the opening, so the bottom of the product entering the conveying channel is supported by the straight conveying section, which drives the product out of the channel. Additionally, the bottom of the first end of the conveying channel has a transition surface 324 that connects to the straight conveying section. The bottom of the transition surface has an arc-shaped recess 325, which mates with the arc-shaped recess at the point where the arc-shaped transition section connects to the straight conveying section. Because of the arc-shaped transition section, there is a gap between the product outlet and the straight conveying section. To fill this gap, a transition surface is provided, allowing the product to be blown from the product outlet to the straight conveying section via the transition surface, where it is then continuously conveyed. The conveying channel matches the shape of the bottle cap, and its cross-section is also designed to be rectangular. Its width and height are slightly larger than the bottle cap's shape, so the bottle cap can be conveyed normally in the conveying channel without tipping over.

[0069] It is understandable that the output component can be equipped with a conveyor channel, or it can be without a conveyor belt. For example, the conveyor channel can be set at an angle so that the product is naturally conveyed along the conveyor channel after being output from the product outlet.

[0070] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A continuous output device, characterized in that, include: The receiving component is provided with a motion mechanism and an adsorption assembly. The motion mechanism drives the adsorption assembly to move between a first position and a second position. The adsorption assembly adsorbs the product at the first position and loads the product onto the tray at the second position. The loading assembly includes a loading tray and a translation driver. The translation driver drives the loading tray to move horizontally. The loading tray is provided with loading slots that are evenly distributed and extend in a straight line. The extension direction of the loading slots is perpendicular to the movement direction of the loading tray. The first end of the loading slot is provided with an air inlet and the second end is provided with a product outlet. A blowing assembly is disposed on the first side of the loading groove, and the blowing assembly includes an output nozzle that is connected to an air inlet. An output component is provided on the second side of the loading trough, and the output component is provided with a conveying channel, which is connected to the product outlet; Compressed air is blown into the air inlet through the output nozzle, and the product in the loading tank is blown into the conveying channel through the product outlet. The product is then output outward along the conveying channel.

2. The continuous output device according to claim 1, characterized in that, The blowing assembly also includes a limiting plate that is set with a corresponding output nozzle and extends along the extension direction of the loading groove. When the loading groove and the output nozzle are aligned, the limiting plate covers the space above the loading groove.

3. A continuous output device according to claim 2, characterized in that, The blowing assembly also includes a pre-tightening nozzle arranged side by side on one side of the output nozzle. The distance between the pre-tightening nozzle and the output nozzle is equal to the distance between two adjacent loading slots. When the loading slots correspond to the positions of the pre-tightening nozzles, the pre-tightening nozzles blow compressed air into the air inlet, and the compressed air pushes the products to be tightly arranged in the loading slots.

4. A continuous output device according to claim 3, characterized in that, A baffle extending along the moving direction of the loading tray is provided on the outer side of the second end of the loading tray. The baffle is fixed relative to the loading tray and is used to block the product outlet. The baffle has a notch corresponding to the position of the output nozzle so that the product outlet can be connected to the conveying channel.

5. A continuous output device according to claim 1, characterized in that, The first end of the loading tank is provided with a limiting part to prevent the product from coming out of the first end of the loading tank.

6. A continuous output device according to claim 5, characterized in that, The limiting parts are symmetrically arranged on both sides of the air inlet.

7. A continuous output device according to claim 1, characterized in that, The width of the loading groove is provided with guide ramps on both sides.

8. A continuous output device according to claim 1, characterized in that, The adsorption component is provided with suction cups arranged in a rectangular array, the suction cup array corresponding to the rectangular array of products on the mold box, and the spacing between two rows of suction cups is equal to the spacing between two adjacent loading slots.

9. A continuous output device according to claim 1, characterized in that, The motion mechanism includes a translation component and a lifting component. The translation component drives the lifting component to move horizontally, and the lifting component drives the adsorption component to move up and down.

10. A continuous output device according to claim 9, characterized in that, The translation component includes a first translation slide rail and a first translation drive belt; the lifting component is provided with a first translation slider that slides with the first translation slide rail and a first fixing part that is fixed to the first translation drive belt; and / or, the translation driver includes a second translation slide rail and a second translation drive belt; the loading tray is provided with a second translation slider that slides with the second translation slide rail and a second fixing part that is fixed to the second translation drive belt.

Images