Dispensing device

Abstract

The embodiment of the utility model discloses a dispensing device, the device comprises a conveying mechanism, an adsorption base, a first driving mechanism, a protective plate and a dispensing needle, the conveying mechanism comprises a guardrail and a conveyor belt, the adsorption base is arranged between the conveyor belts and is driven by the first driving mechanism to move, the protective plate is arranged on the guardrail, and the dispensing needle is arranged on the protective plate. A carrier plate bearing a plurality of first components is placed on the conveyor belt, an optical filter and a plurality of second components are arranged on the upper surface of each first component, when the conveyor belt drives the carrier plate to move to the position above the adsorption base, the adsorption base moves upwards to be attached to the carrier plate and adsorbs and fixes the carrier plate, and at the moment, the protection plate shields the position above the carrier plate. And the protection plate is provided with a plurality of hollowed-out parts, the dispensing needles penetrate through the hollowed-out parts to dispense the second component, and the protection plate can shield and protect the optical filter in the dispensing process, so that glue is prevented from being adhered to the optical filter when the dispensing needles move, and the performance of the optical filter and the camera module is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of camera module assembly equipment, and particularly relates to a dispensing device. Background Art

[0002] In the production of camera modules, dust has a significant impact on the yield, especially on the core image sensor. With the progress of technology, the feature graphic size decreases, the tolerance to particulate contamination decreases, and various problems are likely to occur. To improve the packaging yield, strict dust prevention is required. During the assembly process of camera modules, dust-proof glue is usually coated on the electronic components around the filter, so as to capture and fix the falling dust and avoid affecting imaging. The dust-proof glue has high volatility, fluidity and viscosity. Due to its high viscosity and high fluidity, the glue is easy to draw and stick to the filter as the dispensing needle moves, causing serious damage to the filter and affecting the performance of the camera. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a dispensing device, which can prevent the filter from being contaminated by glue and optimize the quality of camera modules.

[0004] An embodiment of the utility model provides a dispensing device, which includes:

[0005] A conveying mechanism, including two guardrails and two parallel conveyor belts. The two guardrails are arranged on the opposite sides of the two conveyor belts, and a carrier plate is placed on the two conveyor belts;

[0006] An adsorption base, which is movably arranged between the two conveyor belts in the height direction;

[0007] A first driving mechanism, which is connected below the adsorption base and is configured to drive the adsorption base to move in the height direction;

[0008] A protection plate, which is arranged above the guardrail. The protection plate is parallel to the adsorption base and corresponds to the position. A plurality of hollow parts are arranged on the protection plate;

[0009] A dispensing needle, which is movably arranged above the conveying mechanism;

[0010] Wherein, a plurality of first components are fixed on the carrier plate, a plurality of second components and a filter are arranged on the upper surface of the first components. The conveyor belt drives the carrier plate to move above the adsorption base. The first driving mechanism drives the adsorption base to move upward in the height direction to fit with the carrier plate and adsorbs and fixes the carrier plate. The protection plate blocks above the carrier plate, and the plurality of hollow parts respectively correspond to the positions of the first components. The dispensing needle moves above the protection plate and passes through the hollow parts to dispense glue on the second components on the first components.

[0011] Furthermore, the protection plate further includes an extension part disposed in parallel within the hollow part. A plurality of second components are distributed around the filter. When the dispensing device dispenses glue to the second components, the extension part completely shields above the filter.

[0012] Furthermore, the hollow part is of a square structure, and the extension part is of a convex structure. The maximum dimension of the extension part is smaller than the dimension of the hollow part, and the top end of the extension part is connected to one side of the hollow part.

[0013] Furthermore, at least two positioning posts are provided on the adsorption base, and at least two first positioning holes are provided on the carrier plate. The number of the first positioning holes is the same as the number of the positioning posts. When the adsorption base adsorbs and fixes the carrier plate, the positioning posts pass through the first positioning holes to position the carrier plate.

[0014] Furthermore, at least two second positioning holes are provided on the protection plate. The number of the second positioning holes is the same as the number of the positioning posts and the positions are corresponding. When the adsorption base adsorbs and fixes the carrier plate, the positioning posts pass through the first positioning holes and the second positioning holes in sequence to position the carrier plate.

[0015] Furthermore, two positioning posts are provided on the adsorption base, and the two positioning posts are respectively disposed at the diagonals of the upper surface of the adsorption base.

[0016] Furthermore, fixing plates are respectively provided on both sides of the protection plate. The fixing plates are perpendicularly disposed relative to the protection plate, and one end of the fixing plate is connected to the guardrail. The protection plate is lapped on the top surface of the guardrail through the fixing plate.

[0017] Furthermore, the dispensing device further includes a baffle and a second driving mechanism connected to the baffle. The baffle is located between the two conveyor belts and is aligned with one side of the adsorption base. The second driving mechanism is configured to drive the baffle to move in the height direction;

[0018] Wherein, the second driving mechanism drives the baffle to move upward between the two conveyor belts. The baffle blocks the carrier plate conveyed directly above the adsorption base from continuing to move, and the adsorption base moves upward to adsorb and fix the carrier plate.

[0019] Furthermore, a clearance part is provided on one side of the adsorption base close to the baffle.

[0020] Furthermore, the dispensing device is further provided with an induction system and a control system. The control system is respectively connected to the induction system, the first driving mechanism and the second driving mechanism. The induction system is configured to detect whether the carrier plate is in place;

[0021] Wherein, when the induction system detects that the carrier plate is not in place, the control system controls the second driving mechanism to drive the baffle to move upward. When the induction system detects that the carrier plate is in place, the control system controls the first driving mechanism to drive the adsorption base to move upward.

[0022] An embodiment of the present utility model provides a dispensing device, which includes a conveying mechanism, an adsorption base, a first driving mechanism, a protection plate and a dispensing needle. The conveying mechanism includes a guardrail and a conveyor belt. The adsorption base is arranged between the conveyor belts and is driven to move by the first driving mechanism. The protection plate is arranged on the guardrail. A carrier plate carrying a plurality of first components is placed on the conveyor belt. A filter and a plurality of second components are arranged on the upper surface of each first component. When the conveyor belt drives the carrier plate to move above the adsorption base, the adsorption base moves upward to fit with the carrier plate and adsorbs and fixes the carrier plate. At this time, the protection plate shields above the carrier plate, and a plurality of hollow parts are arranged on the protection plate. The dispensing needle passes through the hollow parts to dispense glue on the second components. During the dispensing process, the protection plate can shield and protect the filter to prevent the glue from sticking to the filter when the dispensing needle moves, and ensure the performance of the filter and the camera module. Description of the Drawings

[0023] Through the following description of the embodiments of the present utility model with reference to the drawings, the above and other objects, features and advantages of the present utility model will become clearer. In the drawings:

[0024] Figure 1 is a partial structural schematic diagram of the dispensing device according to the embodiment of the present utility model;

[0025] Figure 2 is a schematic diagram of the positional relationship among the protection plate, the carrier plate, the adsorption base and the baffle according to the embodiment of the present utility model;

[0026] Figure 3 is a partial cross-sectional view of the dispensing device according to the embodiment of the present utility model;

[0027] Figure 4 is a partial structural schematic diagram of the hollow part during dispensing according to the embodiment of the present utility model;

[0028] Figure 5 is a structural schematic diagram of the protection plate according to the embodiment of the present utility model;

[0029] Figure 6 is a structural schematic diagram of the adsorption base according to the embodiment of the present utility model;

[0030] Figure 7 is a structural schematic diagram of the carrier plate carrying the first components according to the embodiment of the present utility model.

[0031] Description of the Reference Numerals:

[0032] 10 - Transfer mechanism; 11 - Conveyor belt; 12 - Guardrail; 20 - Adsorption base; 21 - Positioning column; 22 - Clearance part; 23 - Air hole; 24 - Groove; 31 - Protection plate; 311 - Hollow part; 312 - Second positioning hole; 313 - Extension part; 32 - Fixed plate; 40 - Dispensing needle; 50 - Carrier plate; 501 - First positioning hole; 502 - Clamping plate; 503 - Through hole; 51 - First component; 52 - Second component; 53 - Filter; 60 - First driving mechanism; 70 - Baffle; 80 - Second driving mechanism. Detailed implementation manners

[0033] The following describes the present application based on embodiments, but the present application is not limited to these embodiments. In the following detailed description of the present application, some specific details are described in detail. For those skilled in the art, the present application can be fully understood without the description of these details. In order to avoid obscuring the essence of the present application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0034] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale.

[0035] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0036] Unless the context clearly requires otherwise, the words such as "including", "comprising", etc. throughout the application document should be interpreted as having the meaning of including rather than exclusive or exhaustive; that is, the meaning of "including but not limited to".

[0037] In the description of the present application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0038] Figure 1 It is a schematic structural diagram of the dispensing device according to the embodiment of the present application. Refer to Figure 1, the dispensing device of this embodiment includes a conveying mechanism 10, a suction base 20, a first driving mechanism 60, and a protective plate 31. The conveying mechanism 10 includes two conveyor belts 11 and guardrails 12. The suction base 20 is movably arranged between the two conveyor belts 11. The first driving mechanism 60 is connected to the suction base 20 and can drive the suction base 20 to move. The protective plate 31 is arranged on the guardrail 12, and the position of the protective plate 31 corresponds to the position of the suction base 20. A carrier plate 50 is placed on the conveyor belt 11, and a plurality of first components 51 are carried on the carrier plate 50. A filter 53 and a plurality of second components 52 are arranged on the first component 51. Refer to Figure 4 , a hollowed-out portion 311 is arranged on the protective plate 31. During dispensing, the dispensing needle 40 passes through the hollowed-out portion 311 to dispense glue on the second component 52. At this time, the protective plate 31 can effectively block and protect the filter 53 to prevent the filter 53 from being contaminated by glue, thereby ensuring the quality of the camera module.

[0039] The dispensing process of the dispensing device of this embodiment is as follows: The conveying mechanism 10 transports the carrier plate 50 along a predetermined direction. When the conveyor belt 11 drives the carrier plate 50 to move above the suction base 20, the first driving mechanism 60 drives the suction base 20 to move upward in the height direction to adsorb and fix the carrier plate 50. After the carrier plate 50 is fixed, the dispensing needle 40 passes through the hollowed-out portion 311 on the protective plate 31 to dispense glue on the second component 52. At this time, the protective plate 31 is located directly above the carrier plate 50 to block and protect the carrier plate 50. The hollowed-out portion 311 on the protective plate 31 can expose the devices that need to be dispensed, such as the second component 52. At the same time, other parts of the protective plate 31 can block and protect the parts that do not need to be dispensed, such as the filter 53.

[0040] Furthermore, the dispensing device of this embodiment further includes an induction system (not shown in the figure) and a control system (not shown in the figure) electrically connected to the induction system. The induction system is used to detect whether the carrier plate 50 is in place and send a signal to the control system. The control system controls the dispensing device to perform the next action according to the position information of the carrier plate 50.

[0041] Refer to Figure 7 , the carrier plate 50 includes two upper and lower overlapping clamping plates 502, and a plurality of through holes 503 are arranged on the clamping plates 502. The first component 51 is clamped between the two clamping plates 502 and is located in the through holes 503. The through holes 503 are in a cross-shaped structure. When the carrier plate 50 clamps the first component 51, the through holes 503 can avoid the filter 53 and the second component 52 on the first component 51, facilitating the dispensing operation of the dispensing needle 40.

[0042] During the dispensing process, first place the carrier plate 50 carrying the first component 51 on the conveying mechanism 10. Refer to Figure 1, two conveyor belts 11 in the conveying mechanism 10 are arranged in parallel with each other. Two guardrails 12 are respectively arranged on the sides of the two conveyor belts 11 facing away from each other, and the conveyor belts 11 are fixed on the guardrails 12 through rollers. The carrier plate 50 is carried on the two conveyor belts 11 and is transported by the conveyor belts 11 above the adsorption base 20. Refer to Figure 1 , the initial position of the adsorption base 20 is located below the conveyor belt 11 and will not obstruct the movement of the carrier plate 50 when the carrier plate 50 has not reached above the adsorption base 20. The first driving mechanism 60 is connected below the adsorption base 20, which is convenient for controlling the adsorption base 20 and will not affect the transportation process of the carrier plate 50.

[0043] When the conveyor belt 11 drives the carrier plate 50 to move above the adsorption base 20, the first driving mechanism 60 drives the adsorption base 20 to move upward, and at the same time the adsorption base 20 adsorbs and fixes the carrier plate 50. Refer to Figure 3 and Figure 2 , the dispensing device further includes a baffle 70 and a second driving mechanism 80. The second driving mechanism 80 is connected below the baffle 70, and the second driving mechanism 80 can control the baffle 70 to move in the height direction. Before the adsorption base 20 adsorbs and fixes the carrier plate 50, the baffle 70 intercepts and limits the carrier plate 50 to ensure that the carrier plate 50 can be accurately positioned and adsorbed by the adsorption base 20.

[0044] Refer to Figure 2 , the baffle 70 is located between the two conveyor belts 11 and is arranged at one end of the adsorption base 20 along the transportation direction of the conveyor belt 11. The baffle 70 is aligned with one side of the adsorption base 20 and can perform preliminary positioning on the carrier plate 50. When the baffle 70 moves upward to intercept the carrier plate 50, the carrier plate 50 can be accurately located directly above the adsorption base 20 and aligned with the adsorption base 20. Among them, the maximum height of the upward movement of the baffle 70 does not exceed the protection plate 31 to avoid collision with the protection plate 31. A clearance part 22 is also arranged on the side of the adsorption base 20 close to the baffle 70, and the baffle 70 and the second driving mechanism 80 are mutually non-interfering with the adsorption base 20 through the clearance part 22.

[0045] The initial positions of the adsorption base 20 and the baffle 70 are both located below the conveyor belt 11, and the distance from the conveyor belt 11 is small. The small distance can effectively save the movement time of the adsorption base 20 and the baffle 70, help improve the processing efficiency, and at the same time reduce the friction damage between the carrier plate 50 and the conveyor belt 11 after being intercepted.

[0046] The induction system is located on the side of the adsorption base 20 away from the baffle 70. When the carrier plate 50 just appears above the adsorption base 20, the induction system can detect it in time and send out a signal. The control system is respectively connected to the first driving mechanism 60 and the second driving mechanism 80, and can control the operation of the baffle 70 and the adsorption base 20 according to the signal of the induction system.

[0047] Specifically, when the induction system detects that the carrier board 50 is not in place, that is, when the carrier board 50 just appears directly above the adsorption base 20 and is not completely aligned with the adsorption base 20, the induction system sends a signal to the control system. The control system controls the baffle 70 to move upward according to the signal that the carrier board 50 is not in place, so as to prepare for intercepting and limiting the carrier board 50. When the carrier board 50 is intercepted, the induction system detects that the carrier board 50 is in place, that is, when the carrier board 50 is aligned with the adsorption base 20, and sends a signal to the control system again. The control system controls the first driving mechanism 60 to drive the adsorption base 20 to move upward according to the signal that the carrier board 50 is in place.

[0048] Refer to Figure 1 、 Figure 2 and Figure 3 When the adsorption base 20 moves upward to fit with the carrier board 50, the carrier board 50 is adsorbed and fixed. The adsorption base 20 continues to move upward to separate the carrier board 50 from the conveyor belt 11, avoiding long-term friction damage to the carrier board 50 by the conveyor belt 11 during dispensing.

[0049] Refer to Figures 1 - 3 When the adsorption base 20 fits with the carrier board 50, the gap between the adsorption base 20 and the carrier board 50 is minimized, and then the carrier board 50 is adsorbed and fixed by vacuum adsorption. Refer to Figure 6 There are a plurality of air holes 23 provided on the adsorption base 20, and the positions of the through holes 503 on the carrier board 50 avoid the air holes 23, preventing vacuum leakage when the air holes 23 inhale air. In addition, a plurality of grooves 24 are also provided on the adsorption base 20. When the adsorption base 20 adsorbs the carrier board 50, the positions of the grooves 24 correspond to the positions of the through holes 503. The grooves 24 can avoid the first component 51, preventing wear between the first component 51 and the adsorption base 20.

[0050] Further, refer to Figure 6 At least two positioning posts 21 are further provided on the upper surface of the adsorption base 20. Correspondingly, refer to Figure 7 At least two first positioning holes 501 are provided on the carrier board 50, and the first positioning holes 501 penetrate through the two layers of clamping plates 502. The number of the positioning posts 21 is the same as that of the first positioning holes 501 and their positions correspond to each other. Refer to Figure 1 and Figure 2 During the upward movement of the adsorption base 20, the positioning posts 21 on the adsorption base 20 can pass through the first positioning holes 501 on the carrier board 50 for positioning, so as to ensure complete alignment between the carrier board 50 and the adsorption base 20.

[0051] Among them, when the carrier plate 50 is skewed, the positioning post 21 abuts against the bottom of the carrier plate 50, forming a large gap between the adsorption base 20 and the carrier plate 50. The air holes 23 cannot adsorb and fix the carrier plate 50. At this time, the control system can issue an alarm for prompt. Optionally, a sensor can be provided on one side of the adsorption base 20 to detect the distance between the carrier plate 50 and the adsorption base 20. The control system judges whether the adsorption base 20 successfully adsorbs the carrier plate 50 based on the distance between the two; or a sensor can be provided to detect the vacuum pressure at the air holes 23 to judge whether the adsorption base 20 successfully adsorbs the carrier plate 50, or devices such as a weight sensor can be provided for detection, which is not specifically limited here.

[0052] Further, after the carrier plate 50 is adsorbed and fixed, the control system controls the dispensing needle 40 to move above the protection plate 31 to dispense glue on the second component 52. At this time, referring to Figure 4 , the protection plate 31 shields directly above the carrier plate 50 to shield and protect the first component 51 and the filter 53. Referring to Figure 1 and Figure 2 , fixing plates 32 are respectively arranged on both sides of the protection plate 31. The fixing plates 32 are vertically arranged relative to the protection plate 31, and one end of the fixing plate 32 is connected to the guardrail 12. Referring to Figure 1 , the protection plate 31 is lapped on the top surface of the guardrail 12 through the fixing plates 32 to ensure a certain distance from the carrier plate 50, avoiding collision between the carrier plate 50 and the protection plate 31 during the process of being pushed upward by the adsorption base 20.

[0053] Referring to Figure 1 and Figure 2 , the position of the protection plate 31 corresponds to that of the adsorption base 20, so that after the carrier plate 50 is fixed by the adsorption base 20, the positions of the plurality of hollow parts 311 can correspond to the first components 51 on the carrier plate 50. Referring to Figure 4 , an extension part 313 is further arranged in the hollow part 311. The extension part 313 is arranged in parallel in the hollow part 311 and is connected to one side of the hollow part 311. Referring to Figure 7 , the filter 53 is arranged at the center of the first component 51, and the second components 52 are distributed around the filter 53. Referring to Figure 4 , the extension part 313 extends out from one side of the hollow part 311 and extends towards the center, thereby realizing shielding and protecting the filter 53 to prevent the glue on the dispensing needle 40 from sticking to the filter 53.

[0054] In this embodiment, referring to Figure 4 and Figure 5, the hollow portion 311 on the protective plate 31 is a square structure, and the extension portion 313 is a convex structure. The top end of the extension portion 313 is connected to one side of the hollow portion 311. The maximum dimension of the extension portion 313 is smaller than the dimension of the hollow portion 311, leaving enough space for the dispensing needle 40 to move without colliding with the protective plate 31. The convex extension portion 313 can not only fully protect the filter 53 but also ensure that more of the second components 52 are exposed through the hollow portion 311 for dispensing operations. Optionally, the specific shapes of the hollow portion 311 and the extension portion 313 can also be adjusted according to the shapes and arrangement layouts of the first component 51, the second component 52, the filter 53, or other components or structures that need to be protected.

[0055] Furthermore, referring to Figure 5 , at least two second positioning holes 312 are provided on the protective plate 31. The number of the second positioning holes 312 is the same as that of the positioning posts 21 and their positions correspond to each other. When the adsorption base 20 adsorbs and fixes the carrier plate 50, the positioning posts 21 sequentially pass through the first positioning holes 501 and the second positioning holes 312, further ensuring the correct alignment among the adsorption base 20, the carrier plate 50, and the protective plate 31.

[0056] Referring to Figures 5 - 7 , in this embodiment, two positioning posts 21, two first positioning holes 501, and two second positioning holes 312 are provided. The two positioning posts 21 are arranged at the diagonals of the upper surface of the adsorption base 20 and are located outside the air holes 23. Correspondingly, the first positioning holes 501 are arranged on the diagonal of the carrier plate 50, and the second positioning holes 312 are arranged on the diagonal of the protective plate 31. The diagonal layout can provide better structural stability and help improve the positioning accuracy. According to the principle that two points determine a straight line, the diagonal positioning can correct small deviations and ensure the correct alignment among the adsorption base 20, the carrier plate 50, and the protective plate 31.

[0057] After the dispensing is completed, the control system controls the adsorption base 20 and the baffle 70 to move downward to place the carrier plate 50 back on the conveyor belt 11, and the carrier plate 50 continues to move with the conveyor belt 11.

[0058] The dispensing device of this embodiment is provided with a protective plate above the conveyor belt, and the protective plate is aligned with the adsorption base, so that after the adsorption base adsorbs and fixes the carrier plate, the carrier plate is simultaneously aligned with the protective plate. At the same time, positioning posts are provided on the adsorption base, first positioning holes are provided on the carrier plate, and second positioning holes are provided on the protective plate. When the adsorption base fixes the carrier plate, the carrier plate can be accurately positioned by passing through the first positioning holes and the second positioning holes, ensuring that the extension portion on the protective plate can completely block and protect the filter, effectively improving the processing efficiency while ensuring the quality of the filter and guaranteeing the final product quality.

[0059] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A dispensing device, characterized in that, The dispensing device includes: A conveying mechanism (10), including two guardrails (12) and two conveyor belts (11) arranged in parallel. The two guardrails (12) are arranged on the opposite sides of the two conveyor belts (11), and a carrier plate (50) is placed on the two conveyor belts (11); An adsorption base (20) movably arranged between the two conveyor belts (11) in the height direction; A first driving mechanism (60) connected below the adsorption base (20), and the first driving mechanism (60) is configured to drive the adsorption base (20) to move in the height direction; A protection plate (31) arranged above the guardrail (12). The protection plate (31) is arranged parallel to and corresponding in position to the adsorption base (20), and a plurality of hollow parts (311) are arranged on the protection plate (31); A dispensing needle (40) movably arranged above the conveying mechanism (10); Wherein, a plurality of first components (51) are fixed on the carrier plate (50), a plurality of second components (52) and a filter (53) are arranged on the upper surface of the first components (51). The conveyor belt (11) drives the carrier plate (50) to move above the adsorption base (20). The first driving mechanism (60) drives the adsorption base (20) to move upward in the height direction to fit with the carrier plate (50) and adsorbs and fixes the carrier plate (50). The protection plate (31) shields above the carrier plate (50), and the plurality of hollow parts (311) respectively correspond in position to the first components (51). The dispensing needle (40) moves above the protection plate (31) and passes through the hollow parts (311) to dispense glue on the second components (52) on the first components (51).

2. The dispensing device according to claim 1, wherein The protection plate (31) further includes extension parts (313) arranged in parallel in the hollow parts (311). The plurality of second components (52) are distributed around the filter (53). When the dispensing device dispenses glue on the second components (52), the extension parts (313) completely shield above the filter (53).

3. The dispensing device according to claim 2, wherein, The hollow part (311) is of a square structure, the extension part (313) is of a convex structure, the maximum dimension of the extension part (313) is smaller than the dimension of the hollow part (311), and the top end of the extension part (313) is connected to one side of the hollow part (311).

4. The dispensing device according to claim 1, characterized in that, At least two positioning posts (21) are arranged on the adsorption base (20), at least two first positioning holes (501) are arranged on the carrier plate (50), the number of the first positioning holes (501) is the same as the number of the positioning posts (21). When the adsorption base (20) adsorbs and fixes the carrier plate (50), the positioning posts (21) pass through the first positioning holes (501) to position the carrier plate (50).

5. The dispensing device according to claim 4, wherein, At least two second positioning holes (312) are provided on the protective plate (31). The number of the second positioning holes (312) is the same as that of the positioning posts (21) and their positions correspond to each other. When the adsorption base (20) adsorbs and fixes the carrier plate (50), the positioning posts (21) sequentially pass through the first positioning holes (501) and the second positioning holes (312) to position the carrier plate (50).

6. The dispensing device according to claim 4, wherein, Two positioning posts (21) are provided on the adsorption base (20), and the two positioning posts (21) are respectively arranged at the diagonals of the upper surface of the adsorption base (20).

7. The dispensing device according to claim 1, wherein, Fixing plates (32) are respectively arranged on both sides of the protective plate (31). The fixing plates (32) are vertically arranged relative to the protective plate (31), and one end of each fixing plate (32) is connected to the guardrail (12). The protective plate (31) is lapped on the top surface of the guardrail (12) through the fixing plates (32).

8. The dispensing device according to claim 1, characterized in that, The dispensing device further includes a baffle (70) and a second driving mechanism (80) connected to the baffle (70). The baffle (70) is located between the two conveyor belts (11) and is aligned with one side of the adsorption base (20). The second driving mechanism (80) is configured to drive the baffle (70) to move in the height direction; Wherein, when the second driving mechanism (80) drives the baffle (70) to move upward between the two conveyor belts (11), the baffle (70) blocks the carrier plate (50) conveyed directly above the adsorption base (20) from continuing to move, and the adsorption base (20) moves upward to adsorb and fix the carrier plate (50).

9. The dispensing device according to claim 8, wherein, A clearance portion (22) is provided on one side of the adsorption base (20) close to the baffle (70).

10. The dispensing device according to claim 8, characterized in that, The dispensing device is further provided with an induction system and a control system. The control system is respectively connected to the induction system, the first driving mechanism (60) and the second driving mechanism (80). The induction system is configured to detect whether the carrier plate (50) is in place; Wherein, when the induction system detects that the carrier plate (50) is not in place, the control system controls the second driving mechanism (80) to drive the baffle (70) to move upward. When the induction system detects that the carrier plate (50) is in place, the control system controls the first driving mechanism (60) to drive the adsorption base (20) to move upward.

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