Automatic steel mesh changing mechanism and solder paste printing device

Abstract

The utility model relates to a solder paste printing machine technical field especially relates to a kind of automatic steel net mechanism and solder paste printing equipment.First pulley and second pulley are spaced apart rotationally installed on base, conveying belt is wound on first pulley and second pulley, first driving element is installed on base and is connected first pulley;Supporting block is slidably installed on base by sliding assembly, bearing is installed on supporting block, fastener is fixedly connected on sliding assembly after passing through the inner hole of bearing;First support rod and second support rod are spaced apart installed on supporting block, first tension pulley is rotatably sleeved on first support rod, second tension pulley is rotatably sleeved on second support rod, and first pulley and second pulley are all in abutment with conveying belt;The opposite ends of elastic component are respectively connected base and supporting block, and elastic component is used to drive supporting block to slide on base.The automatic steel net mechanism can move and send different width steel net, and dismounting operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of solder paste printing machine technology, and in particular to an automatic stencil changing mechanism and solder paste printing equipment. Background Technology

[0002] Circuit boards are core components in electronic products. As electronic products become smaller and more precise, circuit board production is usually accomplished using surface mount technology (SMT). The first step in circuit board production is printing solder paste onto the circuit board, which is usually done automatically using a solder paste printer.

[0003] In solder paste printing, a stencil needs to be transferred onto a transport rail. Then, a push rod or similar device moves the stencil along the rail to a preset position, where solder paste can be printed onto the circuit board below. Currently, the stencil is typically placed manually on the transport rail. However, this manual placement method suffers from low automation, low efficiency, and high labor costs. With advancements in automation technology, some solder paste printers are equipped with automatic stencil changing mechanisms. These mechanisms use a conveyor belt to move the stencil in and out of the transport rail, thus completing the automatic stencil changing function. However, existing automatic stencil changing mechanisms typically only transport stencils of a specific width, exhibiting poor applicability and versatility. Summary of the Invention

[0004] This utility model provides an automatic stencil changing mechanism and solder paste printing equipment to solve the technical problems of poor applicability and poor versatility of the existing automatic stencil changing mechanism.

[0005] An embodiment of the present invention provides an automatic steel mesh changing mechanism, comprising two conveying components spaced apart; The conveying component includes a base, a support block, a first driving component, a first pulley, a second pulley, a first tensioning pulley, a second tensioning pulley, a conveyor belt, a first support rod, a second support rod, a sliding component, an elastic component, fasteners, and bearings; the first pulley and the second pulley are rotatably mounted on the base at intervals, the conveyor belt is wound around the first pulley and the second pulley, and the first driving component is mounted on the base and connected to the first pulley; The support block is slidably mounted on the base via the sliding assembly. The bearing is mounted on the support block, and the fastener passes through the inner hole of the bearing and is fixedly connected to the sliding assembly. The first support rod and the second support rod are spaced apart and mounted on the support block. The first tension wheel is rotatably sleeved on the first support rod, and the second tension wheel is rotatably sleeved on the second support rod. Both the first pulley and the second pulley abut against the conveyor belt. The opposite ends of the elastic assembly are respectively connected to the base and the support block, and the elastic assembly is used to drive the support block to slide on the base. Along the direction in which the steel mesh to be replaced moves along the conveyor belt, the first pulley, the first tensioning pulley, the fastener, the second tensioning pulley, and the second pulley are arranged sequentially at intervals.

[0006] Optionally, the elastic component includes a first elastic element and a second elastic element, both of which are installed between the base and the support block; the first elastic element and the second elastic element are located on opposite sides of the fastener.

[0007] Optionally, the support block is provided with a first threaded through hole and a second threaded through hole spaced apart. The automatic steel mesh changing mechanism further includes a first bolt and a second bolt. The first bolt is threadedly connected to the first threaded through hole, and the second bolt is threadedly connected to the second threaded through hole. The end of the first elastic element away from the base is sleeved on the first bolt, and the end of the second elastic element away from the base is sleeved on the second bolt.

[0008] Optionally, the conveying component further includes a support belt, which includes an intermediate plate and a first elastic plate and a second elastic plate connected to opposite sides of the intermediate plate, the intermediate plate being mounted on the base; Both the first tensioning wheel and the second tensioning wheel abut against the first side of the conveyor belt, and both the first elastic plate and the second elastic plate abut against the second side of the conveyor belt; the first side and the second side are respectively the two opposite inner sides of the conveyor belt.

[0009] Optionally, the base includes a base plate, a top plate, and a top block, with two opposite pairs of top blocks respectively connected to the base plate and the top plate, and an accommodating space provided between the base plate, the top block, and the top plate; The first pulley, the second pulley, the first tensioning pulley, and the second tensioning pulley are all located in the receiving space, and the first driving member and the sliding assembly are both installed on the top plate on the side opposite to the receiving space.

[0010] Optionally, the sliding assembly includes a guide rail and a slider. The guide rail is installed on the side of the top plate opposite to the receiving space, and the slider is installed on the support block. The slider is slidably connected to the guide rail. The fastener passes through the inner hole of the bearing and is fixedly connected to the slider.

[0011] Optionally, the base plate is provided with a first sliding groove, the top plate is provided with a second sliding groove, and the base further includes an adjusting block, an adjusting member, and an adjusting rod; the adjusting rod is installed on the adjusting block, the adjusting member connects the top plate and the adjusting block, the second pulley is rotatably sleeved on the adjusting rod, and the adjusting rod passes through the first sliding groove and the second sliding groove; The adjusting element is used to adjust the distance between the first pulley and the second pulley via the adjusting block.

[0012] Optionally, the conveying component further includes a sensor mounted on the top plate, the sensor being used to detect whether there is a steel mesh to be replaced on the bottom plate.

[0013] Another embodiment of this utility model provides a solder paste printing device, including two transfer guide rails spaced apart and the above-mentioned automatic stencil changing mechanism, wherein the transfer guide rails are configured in one-to-one correspondence with the conveying components; the automatic stencil changing mechanism is used to move the stencil to be replaced into or out of the transfer guide rails.

[0014] In this invention, the support block is slidably mounted on the base via the sliding assembly. The opposite ends of the elastic assembly are connected to the support block and the base, respectively. The first support rod and the second support rod are spaced apart and mounted on the support block. The first tensioning wheel is rotatably sleeved on the first support rod, and the second tensioning wheel is rotatably sleeved on the second support rod. The elastic assembly can drive the support block to slide on the base. When the automatic steel mesh changing mechanism conveys steel meshes of different widths to be replaced, the first tensioning wheel and the second tensioning wheel can move along the width direction of the steel mesh to be replaced. Therefore, the automatic steel mesh changing mechanism can convey steel meshes of different widths to be replaced, improving the applicability and versatility of the automatic steel mesh changing mechanism.

[0015] In addition, the bearing is mounted on the support block, and the fastener passes through the inner hole of the bearing and is fixedly connected to the sliding assembly. The fastener is located between the first support rod and the second support rod. During the installation of the first support rod and the second support rod, the support block can rotate around the fastener through the bearing, so that the fastener block will not lock up, thus improving the ease of disassembly and assembly of the automatic steel mesh changing mechanism. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an automatic steel mesh changing mechanism provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of a conveying component provided in an embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of a conveying component provided in an embodiment of the present invention; Figure 4 This is a partial structural schematic diagram of a conveying component provided in an embodiment of the present invention; Figure 5 This is a partial structural schematic diagram of a conveying component provided in an embodiment of the present invention; Figure 6 This is a partial structural schematic diagram of a solder paste printing device provided in one embodiment of the present invention.

[0018] The reference numerals in the accompanying drawings are as follows: 1. Conveying component; 11. Base; 111. Base plate; 1111. First chute; 112. Top plate; 1121. Second chute; 113. Top block; 114. Accommodation space; 115. Adjusting block; 116. Adjusting rod; 12. Support block; 13. First driving component; 14. First pulley; 15. Second pulley; 16. First tensioning pulley; 17. Second tensioning pulley; 18. Conveyor belt; 19. First support rod; 101. Second support rod; 102. Sliding assembly; 1021. Guide rail; 1022. Slider; 103. Elastic assembly; 1031. First elastic element; 1032. Second elastic element; 104. Fastener; 105. Bearing; 106. Support belt component; 1061. Intermediate plate; 1062. First spring plate; 1063. Second spring plate; 2. Transfer guide rail. Detailed Implementation

[0019] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] like Figures 1 to 5As shown, an embodiment of this utility model provides an automatic steel mesh changing mechanism. The conveying component 1 includes a base 11, a support block 12, a first driving member 13, a first pulley 14, a second pulley 15, a first tensioning pulley 16, a second tensioning pulley 17, a conveyor belt 18, a first support rod 19, a second support rod 101, a sliding component 102, an elastic component 103, a fastener 104, and a bearing 105. The first pulley 14 and the second pulley 15 are rotatably mounted on the base 11 at intervals. The conveyor belt 18 is wound around the first pulley 14 and the second pulley 15. The first driving member 13 is mounted on the base 11 and connected to the first pulley 14. The support block 12 is slidably mounted on the base 11 via the sliding assembly 102. The bearing 105 is mounted on the support block 12. The fastener 104 passes through the inner hole of the bearing 105 and is fixedly connected to the sliding assembly 102. The first support rod 19 and the second support rod 101 are spaced apart and mounted on the support block 12. The first tension wheel 16 is rotatably sleeved on the first support rod 19, and the second tension wheel 17 is rotatably sleeved on the second support rod 101. The first pulley 14 and the second pulley 15 both abut against the conveyor belt 18. The opposite ends of the elastic assembly 103 are respectively connected to the base 11 and the support block 12. The elastic assembly 103 is used to drive the support block 12 to slide on the base 11. Along the direction of moving the steel mesh to be replaced along the conveyor belt 18, the first pulley 14, the first tensioning pulley 16, the fastener 104, the second tensioning pulley 17, and the second pulley 15 are arranged sequentially at intervals.

[0021] The two conveying components 1 are spaced apart along the Y direction, and the conveying components 1 are used to move the steel mesh to be replaced along the X direction; the first driving component 13 includes, but is not limited to, a motor, etc.; the sliding component 102 includes, but is not limited to, a guide rail slider 1022 assembly, a guide rod sliding sleeve assembly, etc.; the support block 12 is slidably mounted on the base 11 along the Y direction through the sliding component 102; the fastener 104 includes, but is not limited to, screws, bolts, etc.; the elastic component 103 includes, but is not limited to, a spring, etc., and the elastic component 103 is used to drive the support block 12 to move along the Y direction.

[0022] Specifically, the first driving member 13 drives the first pulley 14 to rotate, and the conveyor belt 18 moves between the first pulley 14 and the second pulley 15. The two conveyor belts 18 clamp the steel mesh to be replaced from opposite sides in the Y direction, so that the conveyor belts 18 can drive the steel mesh to be replaced to move in the X direction by friction.

[0023] In this invention, the support block 12 is slidably mounted on the base 11 via the sliding assembly 102. The opposite ends of the elastic assembly 103 are respectively connected to the support block 12 and the base 11. The first support rod 19 and the second support rod 101 are spaced apart and mounted on the support block 12. The first tensioning wheel 16 is rotatably sleeved on the first support rod 19, and the second tensioning wheel 17 is rotatably sleeved on the second support rod 101. The elastic assembly 103 can drive the support block 12 to slide on the base 11. When the automatic steel mesh changing mechanism conveys steel meshes of different widths to be replaced, the first tensioning wheel 16 and the second tensioning wheel 17 can move along the width direction of the steel mesh to be replaced. Thus, the automatic steel mesh changing mechanism can convey steel meshes of different widths to be replaced, improving the applicability and versatility of the automatic steel mesh changing mechanism.

[0024] In addition, the bearing 105 is mounted on the support block 12, and the fastener 104 passes through the inner hole of the bearing 105 and is fixedly connected to the sliding assembly 102. The fastener 104 is located between the first support rod 19 and the second support rod 101. During the installation of the first support rod 19 and the second support rod 101, the support block 12 can rotate around the fastener 104 through the bearing 105, so that the fastener block will not lock up, thus improving the convenience of disassembly and assembly of the automatic steel mesh changing mechanism.

[0025] In one embodiment, such as Figure 4 As shown, the elastic component 103 includes a first elastic element 1031 and a second elastic element 1032, both of which are installed between the base 11 and the support block 12; the first elastic element 1031 and the second elastic element 1032 are located on opposite sides of the fastener 104.

[0026] The first elastic element 1031 and the second elastic element 1032 are both including but not limited to springs, etc. The first elastic element 1031 is disposed opposite to the first support rod 19, and the second elastic element 1032 is disposed opposite to the second support rod 101. Along the X direction, the first support rod 19, the first elastic element 1031, the fastener 104, the second elastic element 1032 and the second support rod 101 are arranged sequentially at intervals.

[0027] In this embodiment, the design of the first elastic element 1031 and the second elastic element 1032 ensures the stability of the automatic steel mesh changing mechanism in conveying the steel mesh to be replaced.

[0028] In one embodiment, such as Figure 4As shown, the support block 12 is provided with a first threaded through hole and a second threaded through hole spaced apart. The automatic steel mesh changing mechanism also includes a first bolt and a second bolt. The first bolt is threadedly connected to the first threaded through hole, and the second bolt is threadedly connected to the second threaded through hole. The end of the first elastic element 1031 away from the base 11 is sleeved on the first bolt, and the end of the second elastic element 1032 away from the base 11 is sleeved on the second bolt.

[0029] In this embodiment, the design of the first bolt ensures the stability of the first elastic element 1031 installed on the support block 12; the design of the second bolt ensures the stability of the second elastic element 1032 installed on the support block 12.

[0030] In one embodiment, such as Figure 2 and Figure 3 As shown, the conveying component 1 also includes a support belt 106, which includes an intermediate plate 1061 and a first elastic plate 1062 and a second elastic plate 1063 connected to opposite sides of the intermediate plate 1061. The intermediate plate 1061 is mounted on the base 11. The first tensioning roller 16 and the second tensioning roller 17 both abut against the first side of the conveyor belt 18, and the first elastic plate 1062 and the second elastic plate 1063 both abut against the second side of the conveyor belt 18; the first side and the second side are respectively the two opposite inner sides of the conveyor belt 18.

[0031] The intermediate plate 1061, the first elastic plate 1062 and the second elastic plate 1063 are integrally formed parts, and the first elastic plate 1062 and the second elastic plate 1063 both extend outward.

[0032] In this embodiment, the first tensioning wheel 16 and the second tensioning wheel 17 can tension the conveyor belt 18 inward, and the first elastic plate 1062 and the second elastic plate 1063 can tension the conveyor belt 18 outward, so that the conveyor belt 18 is in a tensioned state; during the process of the conveyor belt 18 moving the steel mesh to be replaced, the belt support member 106 can undergo elastic deformation, so that the conveyor belt 18 is in a tensioned state, thereby ensuring the stability of the conveyor belt 18 in moving the steel mesh to be replaced.

[0033] In one embodiment, such as Figure 3 and Figure 4 As shown, the base 11 includes a base plate 111, a top plate 112, and a top block 113. Two opposite pairs of the top blocks 113 are respectively connected to the base plate 111 and the top plate 112. An accommodating space 114 is provided between the base plate 111, the top block 113, and the top plate 112. The first pulley 14, the second pulley 15, the first tensioning pulley 16 and the second tensioning pulley 17 are all located in the receiving space 114, and the first driving member 13 and the sliding assembly 102 are both installed on the top plate 112 on the side opposite to the receiving space 114.

[0034] The bottom plate 111, top plate 112, and top block 113 are integrally formed parts.

[0035] In this embodiment, the first pulley 14, the second pulley 15, the first tensioning pulley 16, and the second tensioning pulley 17 are all located between the top plate 112 and the bottom plate 111. The bottom plate 111 can also support the steel mesh to be replaced. The automatic steel mesh changing mechanism has a compact structure and occupies little space.

[0036] In one embodiment, such as Figure 4 and Figure 5 As shown, the sliding assembly 102 includes a guide rail 1021 and a slider 1022. The guide rail 1021 is installed on the side of the top plate 112 away from the receiving space 114. The slider 1022 is installed on the support block 12 and is slidably connected to the guide rail 1021. The fastener 104 passes through the inner hole of the bearing 105 and is fixedly connected to the slider 1022.

[0037] In this embodiment, the support block 12 slides on the guide rail 1021 via the slider 1022, thereby ensuring the stability of the support block 12 moving in the Y direction.

[0038] In one embodiment, such as Figure 3 and Figure 4 As shown, the base plate 111 is provided with a first sliding groove 1111, the top plate 112 is provided with a second sliding groove 1121, and the base 11 also includes an adjusting block 115, an adjusting member (not shown in the figure), and an adjusting rod 116; the adjusting rod 116 is mounted on the adjusting block 115, the adjusting member connects the top plate 112 and the adjusting block 115, the second pulley 15 is rotatably sleeved on the adjusting rod 116, and the adjusting rod 116 passes through the first sliding groove 1111 and the second sliding groove 1121; The adjusting member is used to adjust the distance between the first pulley 14 and the second pulley 15 via the adjusting block 115.

[0039] The adjusting components include, but are not limited to, screws, bolts, etc.

[0040] In this embodiment, the adjusting member can drive the adjusting block 115 to move on the top plate 112, and the adjusting rod 116 can move in the first slide groove 1111 and the second slide groove 1121, thereby adjusting the distance between the first tensioning wheel 16 and the second tensioning wheel 17.

[0041] In one embodiment, the conveying component 1 further includes a sensor (not shown) mounted on the top plate 112, the sensor being used to detect whether there is a steel mesh to be replaced on the bottom plate 111.

[0042] The sensors include, but are not limited to, laser sensors, which can detect whether the steel mesh to be replaced has moved into or out of the automatic steel mesh changing mechanism.

[0043] like Figure 6 As shown, another embodiment of the present invention also provides a solder paste printing device, including two transfer guide rails 2 spaced apart and the above-mentioned automatic stencil changing mechanism, wherein the transfer guide rails 2 are arranged in a one-to-one correspondence with the conveying component 1; the automatic stencil changing mechanism is used to move the stencil to be replaced into or out of the transfer guide rails 2.

[0044] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. An automatic steel mesh changing mechanism, characterized in that, It includes two conveying components spaced apart; The conveying component includes a base, a support block, a first driving component, a first pulley, a second pulley, a first tensioning pulley, a second tensioning pulley, a conveyor belt, a first support rod, a second support rod, a sliding component, an elastic component, fasteners, and bearings; the first pulley and the second pulley are rotatably mounted on the base at intervals, the conveyor belt is wound around the first pulley and the second pulley, and the first driving component is mounted on the base and connected to the first pulley; The support block is slidably mounted on the base via the sliding assembly. The bearing is mounted on the support block, and the fastener passes through the inner hole of the bearing and is fixedly connected to the sliding assembly. The first support rod and the second support rod are spaced apart and mounted on the support block. The first tension wheel is rotatably sleeved on the first support rod, and the second tension wheel is rotatably sleeved on the second support rod. Both the first pulley and the second pulley abut against the conveyor belt. The opposite ends of the elastic assembly are respectively connected to the base and the support block, and the elastic assembly is used to drive the support block to slide on the base. Along the direction in which the steel mesh to be replaced moves along the conveyor belt, the first pulley, the first tensioning pulley, the fastener, the second tensioning pulley, and the second pulley are arranged sequentially at intervals.

2. The automatic steel mesh changing mechanism according to claim 1, characterized in that, The elastic component includes a first elastic element and a second elastic element, both of which are installed between the base and the support block; the first elastic element and the second elastic element are located on opposite sides of the fastener.

3. The automatic steel mesh changing mechanism according to claim 2, characterized in that, The support block is provided with a first threaded through hole and a second threaded through hole spaced apart. The automatic steel mesh changing mechanism also includes a first bolt and a second bolt. The first bolt is threadedly connected to the first threaded through hole, and the second bolt is threadedly connected to the second threaded through hole. The end of the first elastic element away from the base is sleeved on the first bolt, and the end of the second elastic element away from the base is sleeved on the second bolt.

4. The automatic steel mesh changing mechanism according to claim 1, characterized in that, The conveying component also includes a belt support member, which includes an intermediate plate and a first elastic plate and a second elastic plate connected to opposite sides of the intermediate plate. The intermediate plate is mounted on the base. Both the first tensioning wheel and the second tensioning wheel abut against the first side of the conveyor belt, and both the first elastic plate and the second elastic plate abut against the second side of the conveyor belt; the first side and the second side are respectively the two opposite inner sides of the conveyor belt.

5. The automatic steel mesh changing mechanism according to claim 1, characterized in that, The base includes a base plate, a top plate, and a top block. Two opposite pairs of the top blocks are respectively connected to the base plate and the top plate. An accommodating space is provided between the base plate, the top block, and the top plate. The first pulley, the second pulley, the first tensioning pulley, and the second tensioning pulley are all located in the receiving space, and the first driving member and the sliding assembly are both installed on the top plate on the side opposite to the receiving space.

6. The automatic steel mesh changing mechanism according to claim 5, characterized in that, The sliding assembly includes a guide rail and a slider. The guide rail is installed on the side of the top plate away from the receiving space, and the slider is installed on the support block. The slider is slidably connected to the guide rail. The fastener passes through the inner hole of the bearing and is fixedly connected to the slider.

7. The automatic steel mesh changing mechanism according to claim 5, characterized in that, The base plate is provided with a first sliding groove, the top plate is provided with a second sliding groove, and the base also includes an adjusting block, an adjusting component, and an adjusting rod; the adjusting rod is installed on the adjusting block, the adjusting component connects the top plate and the adjusting block, the second pulley is rotatably sleeved on the adjusting rod, and the adjusting rod passes through the first sliding groove and the second sliding groove; The adjusting element is used to adjust the distance between the first pulley and the second pulley via the adjusting block.

8. The automatic steel mesh changing mechanism according to claim 5, characterized in that, The conveying component also includes a sensor mounted on the top plate, which is used to detect whether there is a steel mesh to be replaced on the bottom plate.

9. A solder paste printing device, characterized in that, It includes two spaced-apart transfer guides and an automatic steel mesh changing mechanism as described in any one of claims 1 to 8, wherein the transfer guides are configured in a one-to-one correspondence with the conveying components; the automatic steel mesh changing mechanism is used to move the steel mesh to be replaced into or out of the transfer guides.

Images