PCB double panel cutting equipment and PCB double panel cutting process

Abstract

The present invention discloses a PCB double-panel cutting device and a PCB double-panel cutting process. The PCB double-panel cutting device includes a loading line, a cutting device, and a unloading line arranged in sequence along a straight line. The loading line includes two loading mechanisms spaced apart from each other, and a through-type conveying device is provided between the two loading mechanisms; a plurality of PCB double-panels are arranged closely adjacent to each other on the loading line in a straight line, and the through-type conveying device is used to separate the plurality of PCB double-panels on the loading line one by one, and push them one by one to the cutting device and the unloading line to achieve cutting and unloading. The PCB double-panel cutting device and the PCB double-panel cutting process of the present invention can stably remove the middle splicing strip without causing the edges of the two PCB boards to break, and can efficiently cut large quantities of panels using a simple and efficient structure.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB production, and in particular to a PCB double-panel cutting device and a PCB double-panel cutting process. Background Art

[0002] like Figure 1 As shown in FIG. , this is a schematic diagram of PCB production using double-paneling technology. It can be understood that two substrates 11 are spliced ​​together, with a middle splicing strip 12 forming a stable connection between the two substrates 11. The two substrates are connected together and processed simultaneously through various steps, which can greatly improve production efficiency. In the later stages of production, the above-mentioned board needs to be cut and the middle splicing strip removed to obtain two independent PCB boards.

[0003] How to stably remove the middle splicing strip without causing the edges of the two PCB boards to break, and how to use a simple structure to efficiently cut large quantities of boards are technical problems that non-standard automation engineers need to solve during design. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a PCB double-panel cutting device and a PCB double-panel cutting process, which can stably remove the middle splicing strip without causing the edges of the two PCB boards to break, and use a simple and efficient structure to efficiently cut large quantities of panels.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A PCB double-panel cutting device comprises a loading line, a cutting device, and an unloading line arranged in sequence along a straight line;

[0007] The feeding line comprises two feeding mechanisms spaced apart from each other, with a through-type conveying device provided between the two feeding mechanisms;

[0008] Several PCB double panels are arranged closely in a straight line on the loading line. The through-type conveying device is used to separate the several PCB double panels on the loading line one by one and push them to the cutting device and the unloading line one by one to realize cutting and unloading.

[0009] In one embodiment,

[0010] The feeding mechanism includes: a side plate, a feeding conveyor belt wound on the side plate, and a feeding motor drivingly connected to the feeding conveyor belt; a feeding separation block is provided on the side plate;

[0011] The through-type conveying device includes a conveying base plate and a conveying wire cylinder for driving the conveying base plate to reciprocate; a separation pushing block is provided on the conveying base plate;

[0012] A plurality of PCB double panels are arranged closely in a straight line and pressed on the feeding conveyor belt, and the feeding separation block blocks the front PCB double panel;

[0013] The conveying wire cylinder drives the conveying substrate to retract so that the separation pushing block lifts the front PCB double panel, and one end of the front PCB double panel is tilted. The loading conveyor belt drives the front PCB double panel to pass over the loading separation block through friction, and the rear PCB double panel is blocked by the loading separation block. The conveying wire cylinder drives the conveying substrate to advance so that the separation pushing block pushes the front PCB double panel to the cutting device and the unloading assembly line to achieve cutting and unloading.

[0014] In one embodiment, the feeding separation block is a semi-cylindrical structure, and the feeding separation block has a flat side facing the feeding conveyor belt and a semi-circular side facing away from the feeding conveyor belt.

[0015] In one embodiment, the separation pushing block is a wedge-shaped block structure, and the separation pushing block has a flat pushing surface facing the cutting device and an inclined top surface facing away from the cutting device.

[0016] In one embodiment, the slitting device comprises: a clamping fixture, a cantilever bracket provided above the clamping fixture, and a slitting bevel knife installed on the cantilever bracket;

[0017] The clamping jig includes a jig body and clamping pieces located on both sides of the jig body; a blanking hole is opened on the jig body, and the blanking hole is located below the cutting bevel knife;

[0018] Wherein, the cutting bevel knife has a blade which forms an inclined angle with the horizontal plane.

[0019] In one embodiment, the jig body is further provided with limiting guide grooves respectively located on both sides of the blanking hole, and the conveying substrate can slide in the limiting guide grooves.

[0020] A PCB double panel cutting process, based on the above-mentioned PCB double panel cutting equipment, includes the following steps:

[0021] Step 1: Arrange several PCB double panels in a straight line and press them onto a loading conveyor belt. The loading motor drives the PCB double panels on the loading conveyor belt to move forward. The PCB double panels are blocked by the loading separation block and generate sliding friction with the loading conveyor belt.

[0022] Step 2: The conveying wire cylinder drives the conveying substrate to retract so that the separation and pushing blocks lift the front PCB double panel. One end of the PCB double panel is tilted up, and the feeding conveyor belt drives the front PCB double panel over the feeding separation block through friction, while the rear PCB double panel continues to be blocked by the feeding separation block.

[0023] In step three, the conveying wire cylinder drives the conveying substrate forward so that the separation pushing block pushes the front PCB double panel to the cutting device and the unloading assembly line. The cutting device removes the middle splicing strip to obtain two independent PCB boards, and the unloading assembly line unloads the two independent PCB boards.

[0024] In one of the embodiments, in step two, first, the separation pushing block lifts the front PCB double panel so that one end is tilted, and then the loading conveyor belt drives the front PCB double panel to continue to move forward through friction. When half of the board body of the front PCB double panel passes over the loading separation block, the originally tilted end is pressed on the loading conveyor belt again due to gravity. Finally, the loading conveyor belt drives the front PCB double panel to continue to move forward through friction, so that the front PCB double panel completely passes over the loading separation block.

[0025] The PCB double-panel cutting device and PCB double-panel cutting process of the present invention can stably remove the middle splicing strip without causing the edges of the two PCB boards to break, and can efficiently cut large quantities of panels using a simple and efficient structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of PCB manufacturing using double-panel technology;

[0028] Figure 2 This is a structural diagram of a PCB double-panel cutting device according to an embodiment of the present invention;

[0029] Figure 3 for Figure 2 Partial view of the PCB double panel cutting equipment shown (1);

[0030] Figure 4 for Figure 2 Partial view of the PCB double panel cutting equipment shown (2);

[0031] Figure 5 This is a schematic diagram of arranging several PCB double panels in a straight line and pressing them against a loading conveyor belt;

[0032] Figure 6 This is a schematic diagram of the front PCB double panel being blocked by the loading separation block;

[0033] Figure 7 This is a diagram showing one end of the front PCB double panel tilted up;

[0034] Figure 8 This is a schematic diagram of the front half of the front PCB double panel spanning the loading and separation block;

[0035] Figure 9 This is a schematic diagram of the rear half of the front PCB double panel spanning the loading and separation block;

[0036] Figure 10 Schematic diagram of the separation push block pushing the front PCB double panel to the cutting device and unloading line;

[0037] Figure 11 Schematic diagram of the separation pushing block pushing the front PCB double panel to the cutting device to achieve cutting. DETAILED DESCRIPTION

[0038] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] like Figure 2 As shown, the present invention discloses a PCB double-panel cutting device 20, which includes a loading line 100, a cutting device 200, and an unloading line 300 arranged in sequence along a straight line.

[0042] like Figure 2 and Figure 3 As shown, the loading line 100 includes two loading mechanisms 110 spaced apart from each other, and a through-type conveying device 400 is provided between the two loading mechanisms 110 .

[0043] Several PCB double panels 10 are arranged in a straight line and adjacent to each other on the loading line 100. The through-type conveying device 400 is used to separate the several PCB double panels 10 on the loading line 100 one by one and push them one by one to the cutting device 200 and the unloading line 300 to realize cutting and unloading.

[0044] Next, the specific structure of the above-mentioned PCB double-panel cutting device 20 is described:

[0045] like Figure 3 As shown, the feeding mechanism 110 includes: a side plate 111, a feeding conveyor belt 112 wound on the side plate 111, and a feeding motor 113 drivingly connected to the feeding conveyor belt 112. A feeding separation block 114 is provided on the side plate 111.

[0046] like Figure 3 As shown, the through-type conveyor device 400 includes a conveyor base 410 and a conveyor wire cylinder 420 for driving the conveyor base 410 to reciprocate. The conveyor base 410 is provided with a separation pusher block 430. The separation pusher block 430 mainly performs two functions: first, it is used to separate the tightly connected PCB double panels one by one, and second, it is used to push the separated PCB double panels to the next station.

[0047] like Figure 5 As shown, a plurality of PCB double panels 10 are arranged closely in a straight line and pressed on a loading conveyor belt 112, and a loading separation block 114 blocks the front PCB double panel.

[0048] The transmission wire cylinder 420 drives the transmission substrate 410 to retract so that the separation pushing block 430 lifts the front PCB double panel, and one end of the front PCB double panel is tilted. The loading conveyor belt 112 drives the front PCB double panel to cross the loading separation block 114 through friction, and the rear PCB double panel is blocked by the loading separation block 114. The transmission wire cylinder 420 drives the transmission substrate 410 to move forward so that the separation pushing block 430 pushes the front PCB double panel to the cutting device 200 and the unloading assembly line 300 to realize cutting and unloading.

[0049] Preferably, if Figure 3As shown, the loading and separating block 114 is a semi-cylindrical structure, and the loading and separating block 114 has a flat side surface 1141 facing the loading conveyor belt 112 and a semi-circular side surface 1142 facing away from the loading conveyor belt 112 .

[0050] Preferably, if Figure 3 As shown, the separation pushing block 430 is a wedge-shaped block structure, and the separation pushing block 430 has a flat pushing surface 431 facing the cutting device 200 and an inclined top surface 432 facing away from the cutting device 200 .

[0051] Next, the specific structure of the cutting device 200 is described (eg Figure 4 shown):

[0052] The cutting device 200 includes a clamping fixture 210 , a cantilever support 220 disposed above the clamping fixture 210 , and a cutting bevel knife 230 mounted on the cantilever support 220 .

[0053] The clamping jig 210 includes a jig body 211 and clamping pieces 212 located on both sides of the jig body 211 . A blanking hole 213 is opened on the jig body 211 , and the blanking hole 213 is located below the cutting bevel knife 230 .

[0054] The cutting bevel knife 230 has a blade that forms an inclined angle with the horizontal plane.

[0055] like Figure 4 As shown, further, the fixture body 211 is provided with limiting guide grooves 214 respectively located on both sides of the blanking hole 213 , and the conveying substrate 410 can slide in the limiting guide grooves 214 .

[0056] Next, the working principle of the above-mentioned PCB double-panel cutting device 20 is described:

[0057] like Figure 5 and Figure 6 As shown, several PCB double panels 10 are arranged closely in a straight line and pressed against a loading conveyor belt 112. A loading motor 113 drives the loading conveyor belt 112 to move the several PCB double panels 10 thereon forward. In this state, the several PCB double panels 10 are arranged closely in a straight line, with no gaps between adjacent PCB double panels. This makes it difficult for the through-type conveyor device 400 to separate the front PCB double panel from the other PCB panels, thus affecting the subsequent cutting process.

[0058] To this end, the present invention provides three mutually coordinated structures, namely, a loading conveyor belt 112, a loading separation block 114, and a separation push block 430, to achieve continuous transmission, individual separation, cutting, and unloading of the PCB double-piece board 10 using a more streamlined mechanical structure;

[0059] The PCB double panel 10 currently directly blocked by the loading and separating block 114 is defined as the front PCB double panel, and the other PCB double panels that have not yet come into contact with the loading and separating block 114 are defined as the rear PCB double panels;

[0060] like Figure 7 As shown, the conveying wire cylinder 420 drives the conveying base plate 410 to retract so that the separation and pushing block 430 lifts up the front PCB double panel. During the retraction process of the conveying base plate 410, the inclined lifting surface 432 on the side facing away from the cutting device 200 can smoothly lift up one end of the front PCB double panel, so that one end of the PCB double panel is tilted.

[0061] The feeding conveyor belt 112 drives the front PCB double-piece board to cross the feeding separation block 114 through friction; the specific description of this crossing process is as follows (eg Figure 8 and Figure 9 As shown in the figure): the feeding conveyor belt 112 drives the front PCB double panel to move forward by friction (the rear PCB double panel also provides thrust for the front PCB double panel). When half of the front PCB double panel passes over the feeding separation block, it is also affected by gravity, and the originally tilted end is pressed on the feeding conveyor belt 112 again. Finally, the feeding conveyor belt 112 drives the front PCB double panel to continue to move forward by friction, so that the front PCB double panel can completely pass over the feeding separation block 114. In the process of the front PCB double panel crossing the feeding separation block 114, the conveying wire cylinder 420 simultaneously drives the conveying base plate 410 to move forward appropriately to the feeding separation block 114 (as shown in the figure). Figure 8 and Figure 9 As shown in FIG1 ), on the one hand, it helps the PCB double panel to cross over, and on the other hand, it prevents the other adjacent PCB double panel from being affected and tilted up; because the loading and separating block 114 has a semicircular side surface 1142 facing away from the loading conveyor belt 112, the semicircular side surface 1142 provides conditions for the smooth crossing of the front PCB double panel;

[0062] like Figure 10 and Figure 11 As shown, when the front PCB double panel moves in front of the separation and pushing block 430 under the action of the loading conveyor belt 112, the conveying wire cylinder 420 drives the conveying base plate 410 forward so that the separation and pushing block 430 pushes the front PCB double panel to the cutting device 200 and the unloading assembly line 300. The cutting device 200 removes the middle splicing strip to obtain two independent PCB boards, and the unloading assembly line 300 unloads the two independent PCB boards.

[0063] With the help of the thrust of the separation pushing block 430, the PCB double panel is pushed forward, and the two sides of the PCB double panel are clamped by the clamping pieces 212 on both sides. Since the cutting bevel knife 230 has a blade that forms an inclined angle with the horizontal plane, the middle splicing strip on the PCB double panel forms a point contact with the blade, and the force between the blade and the middle splicing strip acts on one point, so that the middle splicing strip is gradually separated. Such a design is not easy to cause the edges of the two PCB boards to break.

[0064] Next, the structural design features of the above-mentioned PCB double-panel cutting device 20 are described:

[0065] 1. In the present invention, the separation and pushing block 430 plays the role of separating the double PCB panels and pushing the double PCB panels. When designing, it is necessary to make the position of the separation and pushing block 430 slightly higher than the double PCB panels. In this way, the separation and pushing block 430 can exert force on the double PCB panels to achieve pushing. However, this will lead to the technical problem that the separation and pushing block 430 will hinder the double PCB panels. Coincidentally, when the separation and pushing block 430 lifts one end of the double PCB panels, the double PCB panels can smoothly pass over the separation and pushing block 430 with the help of the friction force of the feeding conveyor belt 112 and the supporting force of the feeding separation block 114. It can be imagined that when the double PCB panels are crossing the feeding separation block 114, the separation and pushing block 430 is temporarily under the double PCB panels (such as Figure 8 and Figure 9 As shown); When the PCB double-piece board completely passes over the feeding separation block 114, the separation push block 430 is located behind the PCB double-piece board (as shown); Figure 10 As shown), the separation and pushing block 430 can then push the PCB double panels forward; the separation and pushing block 430 can separate and push the PCB double panels by simply moving back and forth, which is very simple and efficient.

[0066] 2. In the present invention, it is necessary to separate the plurality of PCB double panels one by one and push them to the next cutting station by the separation and pushing block 430. To this end, a loading and separating block 114 is designed to temporarily block the plurality of PCB double panels. Under the action of the separation and pushing block 430, one end of the front PCB double panel is lifted up. At the same time, under the friction of the loading conveyor belt 112, the front PCB double panel will pass over the loading and separating block 114, thereby completing the work of separating the PCB double panels one by one. It can be seen that the loading conveyor belt 112, the loading and separating block 114, and the separation and pushing block 430 work in a clever and coordinated manner. Without the need for additional complex devices, the loading, separation, cutting, and unloading of the PCB double panels can be completed.

[0067] 3. In the present invention, the through-type conveying device 400 plays the role of threading the needle. The loading line 100, the cutting device 200, and the unloading line 300 are connected through the through-type conveying device 400, realizing the loading, cutting and unloading of the PCB double-panel board.

[0068] The present invention also discloses a PCB double-panel cutting process, which is based on the above-mentioned PCB double-panel cutting equipment and includes the following steps:

[0069] Step 1: Arrange several PCB double panels in a straight line and press them onto a loading conveyor belt. The loading motor drives the PCB double panels on the loading conveyor belt to move forward. The PCB double panels are blocked by the loading separation block and generate sliding friction with the loading conveyor belt.

[0070] Step 2: The conveying wire cylinder drives the conveying substrate to retract so that the separation and pushing blocks lift the front PCB double panel. One end of the PCB double panel is tilted up, and the feeding conveyor belt drives the front PCB double panel over the feeding separation block through friction, while the rear PCB double panel continues to be blocked by the feeding separation block.

[0071] In step three, the conveying wire cylinder drives the conveying substrate forward so that the separation pushing block pushes the front PCB double panel to the cutting device and the unloading assembly line. The cutting device removes the middle splicing strip to obtain two independent PCB boards, and the unloading assembly line unloads the two independent PCB boards.

[0072] In step two, first, the separation pushing block lifts up the front PCB double panel so that one end is tilted up, and then the loading conveyor belt drives the front PCB double panel to continue to move forward through friction. When half of the board body of the front PCB double panel passes over the loading separation block, the originally tilted end is pressed on the loading conveyor belt again due to gravity. Finally, the loading conveyor belt drives the front PCB double panel to continue to move forward through friction, so that the front PCB double panel can completely pass over the loading separation block.

[0073] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A PCB double-panel cutting device, characterized in that: It includes a loading line, a cutting device, and an unloading line arranged in sequence along a straight line; The feeding line comprises two feeding mechanisms spaced apart from each other, with a through-type conveying device provided between the two feeding mechanisms; A plurality of PCB double panels are arranged in a straight line in sequence and closely on the loading line, and the through-type conveying device is used to separate the plurality of PCB double panels on the loading line one by one and push them one by one to the cutting device and the unloading line to realize cutting and unloading; The loading mechanism comprises: a side plate, a loading conveyor belt wound on the side plate, and a loading motor connected to the loading conveyor belt; the side plate is provided with a loading and separating block; the through-type conveyor device comprises a conveying base plate and a conveying wire cylinder for driving the conveying base plate to reciprocate; the conveying base plate is provided with a separating and pushing block; a plurality of PCB double panels are arranged closely in a straight line and pressed on the loading conveyor belt, and the loading and separating block blocks the front PCB double panels; the conveying wire cylinder drives the conveying base plate to retract so that the separating and pushing block pushes the front PCB double panels, and one end of the front PCB double panels tilts up, and the loading conveyor belt drives the front PCB double panels to pass over the loading and separating block through friction, and the rear PCB double panels are blocked by the loading and separating block, and the conveying wire cylinder drives the conveying base plate to move forward so that the separating and pushing block pushes the front PCB double panels to the cutting device and the unloading assembly line to achieve cutting and unloading; The feeding separation block is a semi-cylindrical structure, and has a flat side facing the feeding conveyor belt and a semi-circular side facing away from the feeding conveyor belt; The separation pushing block is a wedge-shaped block structure, and has a flat pushing surface facing the cutting device and an inclined top surface facing away from the cutting device. The slitting device includes: a clamping jig, a cantilever bracket arranged above the clamping jig, and a slitting bevel knife installed on the cantilever bracket; the clamping jig includes a jig body and clamping plates located on both sides of the jig body; a blanking hole is opened on the jig body, and the blanking hole is located below the slitting bevel knife; wherein, the slitting bevel knife has a blade that forms an inclined angle with the horizontal plane.

2. The PCB double panel cutting device according to claim 1, characterized in that: The fixture body is further provided with limiting guide grooves respectively located on both sides of the blanking hole, and the conveying substrate can slide in the limiting guide grooves.

3. A PCB double-panel cutting process, characterized in that: The PCB double-panel cutting device according to any one of claims 1 to 2 comprises the following steps: Step 1: Arrange several PCB double panels in a straight line and press them onto a loading conveyor belt. The loading motor drives the PCB double panels on the loading conveyor belt to move forward. The PCB double panels are blocked by the loading separation block and generate sliding friction with the loading conveyor belt. Step 2: The conveying wire cylinder drives the conveying substrate to retract so that the separation and pushing blocks lift the front PCB double panel. One end of the PCB double panel is tilted up, and the feeding conveyor belt drives the front PCB double panel over the feeding separation block through friction, while the rear PCB double panel continues to be blocked by the feeding separation block. In step three, the conveying wire cylinder drives the conveying substrate forward so that the separation pushing block pushes the front PCB double panel to the cutting device and the unloading assembly line. The cutting device removes the middle splicing strip to obtain two independent PCB boards, and the unloading assembly line unloads the two independent PCB boards.

4. The PCB double panel cutting process according to claim 3, characterized in that: In step two, first, the separation pushing block lifts up the front PCB double panel so that one end is tilted up, and then the loading conveyor belt drives the front PCB double panel to continue to move forward through friction. When half of the board body of the front PCB double panel passes over the loading separation block, the originally tilted end is pressed on the loading conveyor belt again due to gravity. Finally, the loading conveyor belt drives the front PCB double panel to continue to move forward through friction, so that the front PCB double panel completely passes over the loading separation block.

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