PCB mold convenient to demold

Abstract

The utility model discloses a PCB (printed circuit board) mould convenient to demould, which belongs to the field of moulds and comprises a first mould and a second mould which are arranged on a base. An auxiliary demolding mechanism used for conducting auxiliary demolding on the PCB is arranged above the base. The auxiliary demolding mechanism comprises a U-shaped frame fixed to the top end of the base, a material guide plate is arranged on the inner side of the U-shaped frame, a driving part is fixedly installed at the top end of the U-shaped frame, a hollow pipe fixedly connected with the top end of the material guide plate and the output end of the driving part is slidably connected to the U-shaped frame in an inserted mode, and a blowing assembly is arranged on the hollow pipe. The purging assembly comprises an air pipe fixedly connected to the hollow pipe, and the two sides of the air pipe are each fixedly connected with a plurality of spray heads. According to the PCB demolding device, the auxiliary demolding mechanism can be used for conducting auxiliary demolding on the PCB which is ejected out through the demolding ejector pin and detained on the mold, manual taking-out is avoided, then the phenomenon that finger mark grooves are formed in the PCB is avoided, and the qualified rate of PCB demolding is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for a PCB board which is convenient for demoulding. Background Art

[0002] Printed circuit boards, also known as printed circuit boards, are providers of electrical connections for electronic components.

[0003] When producing PCB boards, specific molds are used for shaping. After the original board slurry is formed in the mold, it adheres to the inner wall of the mold due to thermal expansion, which causes the external pressure to be much greater than the pressure between the mold and the original board, making it difficult to remove the formed original board. Generally, external cooling is performed, or it is slightly easier to remove after natural cooling. This leads to too low efficiency in PCB board production. The cooling of the formed original board can be accelerated by accelerating the heat dissipation, thereby improving production efficiency. The Chinese utility model patent with publication number CN217597631U discloses a mold for PCB boards that is easy to demold. The cooling speed of the molded original board is accelerated by the bottom heat dissipation mechanism and the side heat dissipation mechanism, thereby improving production efficiency; since the top plate is used instead of the traditional ejector for demolding, the force-bearing area of ​​the bottom surface of the newly formed PCB board can be increased to protect the molded board from damage. However, it is known through searching that the existing PCB board is prone to being retained on the mold when being ejected by the ejector pin during the demolding process. In general, this situation requires manual demolding. Since a large amount of residual heat is removed from the surface of the PCB board through the heat dissipation mechanism and some residual heat remains, manual demolding may cause finger marks and pits on the surface of the PCB board, resulting in the phenomenon of unqualified PCB boards, and may also cause burns to artificial fingers. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The utility model provides a mold for a PCB board which is convenient for demoulding, and aims to solve the problem that the existing PCB board is easily retained on the mold when being ejected by an ejector pin during demoulding, which is proposed in the background technology. In general, manual demoulding is required for this situation. Since a large amount of residual heat is driven away from the surface of the PCB board by a heat dissipation mechanism and some residual heat remains, manual demoulding may cause finger marks and pits to appear on the surface of the PCB board, resulting in the phenomenon that the PCB board is unqualified, and the problem of scalding the artificial fingers may also occur.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold for a PCB board that is convenient for demoulding, comprising a first mold and a second mold arranged on a base;

[0008] The difference from the existing mold is that: an auxiliary demoulding mechanism for assisting demoulding of the PCB board is arranged above the base; the auxiliary demoulding mechanism comprises a U-shaped frame fixed to the top of the base, a material guide plate is arranged on the inner side of the U-shaped frame, a driving member is fixedly installed on the top of the U-shaped frame, a hollow tube fixedly connected to the top of the material guide plate and the output end of the driving member is slidably plugged on the U-shaped frame, and a purge component is arranged on the hollow tube; the auxiliary demoulding mechanism can assist in demoulding the PCB board ejected by the demoulding ejector pin and retained on the mold, avoid manual removal, and then avoid the phenomenon of finger mark grooves on the PCB board, thereby improving the qualified rate of PCB board demoulding.

[0009] Preferably, the purge assembly includes an air pipe fixedly connected to a hollow tube, a plurality of nozzles are fixedly connected to both sides of the air pipe, an air pump is fixedly installed on the top of the U-shaped frame, and a corrugated hose connected to the output end of the air pump and the air inlet end of the air pipe is plugged onto the U-shaped frame; the setting of the purge assembly can adsorb fine microparticles on the opposite ends of the first mold and the second mold for cleaning, so that the inside of the mold cavity on the first mold and the second mold is in a tidy state when the first mold and the second mold are used next time, thereby improving the cleanliness of the mold cavity for PCB board production.

[0010] Preferably, both sides of the air pipe are fixedly connected with a soft cleaning brush for cleaning the opposite ends of the first mold and the second mold.

[0011] Preferably, a discharge mechanism is provided at the bottom of the base, and the discharge mechanism includes a guide frame plugged into the bottom of the base, a discharge trough is provided at the top of the guide frame, and a discharge port corresponding to the discharge trough is provided at the top of the base; the discharge mechanism is used to conveniently guide and discharge the fallen PCB board.

[0012] Preferably, the bottom wall of the discharge trough is inclined, that is, the inner side of the bottom wall of the discharge trough is higher than the opening of the discharge trough.

[0013] Preferably, a collecting box is slidably inserted into the bottom of the material guide rack, and a plurality of slag discharge holes corresponding to the collecting box are opened on the bottom wall of the material discharge trough; the fallen PCB boards can be filtered through the slag discharge holes, so that the fallen PCB boards are separated from the impurity particles, thereby ensuring the cleanliness of the PCB boards when they are removed.

[0014] (III) Beneficial effects

[0015] The present application utilizes an auxiliary demoulding mechanism to assist in demoulding a PCB board that is ejected by a demoulding ejector pin and retained on a mold, thereby avoiding manual removal, thereby avoiding the occurrence of finger mark grooves on the PCB board, and improving the qualified rate of PCB board demoulding;

[0016] The present application utilizes the setting of the purge assembly to absorb fine microparticles on the opposite ends of the first mold and the second mold for cleaning, so that the inside of the mold cavity on the first mold and the second mold is in a clean state when the first mold and the second mold are used next time, thereby improving the cleanliness of the mold cavity for PCB board production;

[0017] The present application utilizes a discharging mechanism to conveniently guide and discharge the fallen PCB boards, and at the same time, the fallen PCB boards can be filtered through the slag discharge holes, so that the fallen PCB boards are separated from the impurity particles, ensuring the cleanliness of the PCB boards when they are removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a mold for a PCB board that is easy to demould;

[0019] Figure 2 for Figure 1 A bottom view of the overall structure of a mold for a PCB board that is convenient for demoulding;

[0020] Figure 3 It is a schematic diagram of the structure of the purge assembly;

[0021] Figure 4 It is a schematic diagram of the discharge mechanism structure.

[0022] In the figure: 1. base; 2. first mold; 3. second mold; 4. auxiliary demoulding mechanism; 41. U-shaped frame; 42. guide plate; 43. hollow tube; 44. driving member; 5. purge assembly; 51. air pipe; 511. cleaning soft brush; 52. nozzle; 53. corrugated hose; 54. air pump; 6. discharging mechanism; 61. guide frame; 62. discharging trough; 63. slag discharge hole; 64. collecting box; 65. discharge port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0024] The utility model provides a mold for a PCB board which is convenient for demoulding. Figure 1-4 As shown, the mold includes a first mold 2 and a second mold 3 arranged on a base 1;

[0025] An auxiliary demoulding mechanism 4 for assisting demoulding of the PCB board is arranged above the base 1; the auxiliary demoulding mechanism 4 comprises a U-shaped frame 41 fixed to the top of the base 1, a material guide plate 42 is arranged inside the U-shaped frame 41, a driving member 44 is fixedly installed on the top of the U-shaped frame 41, and a hollow tube 43 fixedly connected to the top of the material guide plate 42 and the output end of the driving member 44 is slidably plugged on the U-shaped frame 41; the auxiliary demoulding mechanism 4 can assist in demoulding the PCB board ejected by the demoulding ejector pin and retained on the mold, avoiding manual removal, and then avoiding the phenomenon of finger mark grooves on the PCB board, thereby improving the qualified rate of PCB board demoulding;

[0026] The driving member 44 may be a cylinder, an electric push rod or a hydraulic cylinder;

[0027] During use, when the first mold 2 and the second mold 3 are separated, the demoulding mechanism on the second mold 3 can demould the PCB board on the second mold 3. When the PCB board ejected by the ejector pin is retained on the second mold 3 during the demoulding process, the driving member 44 is started, and the guide plate 42 is driven to squeeze the PCB board through the cooperation of the output end of the driving member 44 and the hollow tube 43, so that the PCB board is separated from the second mold 3, and the demoulding of the PCB board is completed.

[0028] See attached Figure 2 and attached Figure 3 As shown, a purge assembly 5 is provided on the hollow tube 43, and the purge assembly 5 includes an air pipe 51 fixedly connected to the hollow tube 43, and a plurality of nozzles 52 are fixedly connected to both sides of the air pipe 51. An air pump 54 is fixedly installed on the top of the U-shaped frame 41, and a corrugated hose 53 connected to the output end of the air pump 54 and the air inlet end of the air pipe 51 is plugged on the U-shaped frame 41; the purge assembly 5 can absorb fine microparticles on the opposite ends of the first mold 2 and the second mold 3 for cleaning, so that the inside of the mold cavity on the first mold 2 and the second mold 3 is in a tidy state when the first mold 2 and the second mold 3 are used next time, thereby improving the cleanliness of the mold cavity for PCB board production;

[0029] When in use, when the guide plate 42 drives the air pipe 51 to move downward, the air pump 54 is turned on, so that the gas input by the air pump 54 enters the air pipe 51 through the corrugated hose 53, and then is sprayed out through the nozzle 52, thereby cleaning the mold cavity at the opposite end of the first mold 2 and the second mold 3;

[0030] Furthermore, both sides of the air pipe 51 are fixedly connected with a cleaning soft brush 511 for cleaning the opposite ends of the first mold 2 and the second mold 3; the cleaning soft brush 511 can be used to brush the tiny microparticles adsorbed on the opposite ends of the first mold 2 and the second mold 3, thereby further improving the cleanliness of the mold cavity on the first mold 2 and the second mold 3. Example

[0031] See attached Figure 2 and attached Figure 4 As shown, a discharge mechanism 6 is provided at the bottom of the base 1, and the discharge mechanism 6 includes a guide frame 61 plugged into the bottom of the base 1, a discharge trough 62 is provided at the top of the guide frame 61, and a discharge port 65 corresponding to the discharge trough 62 is provided at the top of the base 1; a collecting box 64 is slidably plugged at the bottom of the guide frame 61, and a plurality of slag discharge holes 63 corresponding to the collecting box 64 are provided on the bottom wall of the discharge trough 62; the discharge mechanism 6 is used to conveniently guide and discharge the fallen PCB boards, and at the same time, the fallen PCB boards can be filtered through the slag discharge holes 63, so that the fallen PCB boards are separated from the impurity particles, thereby ensuring the cleanliness of the PCB boards when they are removed.

[0032] Furthermore, the bottom wall of the discharge trough 62 is inclined, that is, the inner side of the bottom wall of the discharge trough 62 is higher than the opening of the discharge trough 62, so that the PCB board can be discharged easily.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mold for a PCB board that is easy to demould, comprising a first mold (2) and a second mold (3) arranged on a base (1); characterized in that: An auxiliary demoulding mechanism (4) for assisting demoulding of the PCB board is arranged above the base (1); the auxiliary demoulding mechanism (4) comprises a U-shaped frame (41) fixed to the top of the base (1); a material guide plate (42) is arranged inside the U-shaped frame (41); a driving member (44) is fixedly mounted on the top of the U-shaped frame (41); a hollow tube (43) fixedly connected to the top of the material guide plate (42) and to the output end of the driving member (44) is slidably plugged on the U-shaped frame (41); and a purge assembly (5) is arranged on the hollow tube (43).

2. The mold for a PCB board that is easy to demould according to claim 1, characterized in that: The purge assembly (5) comprises an air pipe (51) fixedly connected to a hollow pipe (43), a plurality of nozzles (52) being fixedly connected to both sides of the air pipe (51), an air pump (54) being fixedly mounted on the top of the U-shaped frame (41), and a corrugated hose (53) communicating with an output end of the air pump (54) and an air inlet end of the air pipe (51) being plugged into the U-shaped frame (41).

3. The mold for a PCB board that is easy to demould according to claim 2, characterized in that: Soft cleaning brushes (511) for cleaning opposite ends of the first mould (2) and the second mould (3) are fixedly connected to both sides of the air pipe (51).

4. The mold for a PCB board that is easy to demould according to claim 1, characterized in that: A discharge mechanism (6) is provided at the bottom of the base (1), the discharge mechanism (6) comprising a material guide frame (61) plugged into the bottom of the base (1), a discharge trough (62) is provided at the top of the material guide frame (61), and a discharge port (65) corresponding to the discharge trough (62) is provided at the top of the base (1).

5. The mold for a PCB board that is easy to demould according to claim 4, characterized in that: The bottom wall of the discharge trough (62) is inclined, that is, the inner side of the bottom wall of the discharge trough (62) is higher than the opening of the discharge trough (62).

6. The mold for a PCB board that is easy to demould according to claim 4, characterized in that: A collecting box (64) is slidably inserted into the bottom of the material guide frame (61), and a plurality of slag discharge holes (63) corresponding to the collecting box (64) are formed on the bottom wall of the material discharge trough (62).

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