Material belt moving device for SMT (Surface Mount Technology) material receiving machine

Abstract

The utility model discloses a material belt moving device for an SMT (Surface Mount Technology) material receiving machine, which relates to the field of material receiving machines and comprises a feeding and discharging mechanism and a material pressing mechanism, the feeding and discharging mechanism comprises a supporting bottom plate assembly and a driving wheel. The supporting bottom plate assembly comprises a first material carrying platform. The first material carrying platform is strip-shaped; the upper surface of the first loading platform is horizontal; a hole penetrating through the driving wheel is formed in the first loading platform; the driving wheel penetrates through a hole in the first material carrying platform to be fixed. The horizontal section of the upper rim of the driving wheel is higher than the upper surface of the first loading platform; the pressing mechanism comprises a first pressing platform and a driving mechanism; the lower surface of the first pressing platform is horizontal; the first pressing platform is fixed on the driving mechanism; the driving mechanism can drive the first pressing platform to move in the horizontal direction and the vertical direction. The material belt moving device for the SMT material receiving machine provided by the utility model solves the problem that the material belt of the material receiving machine in the prior art is easy to upwarp to influence the proceeding of the material receiving process, and can reduce the influence of the upwarp of the material belt on the normal proceeding of the material receiving process.

Description

Technical Field

[0001] This utility model relates to the field of material receiving machines, and more particularly to a material conveyor for an SMT material receiving machine. Background Technology

[0002] SMT, or Surface Mount Technology, is used to mount electronic components without leads or with short leads onto a PCB. It is one of the most popular technologies and processes in the electronics assembly industry.

[0003] The tapes used in SMT are used in rolls. When a roll of tape is almost used up, it needs to be connected to a new roll of tape in a timely manner (using adhesive tape). During this process, the old tape is unwound and wound onto the receiving machine. The head of the old tape is continuously output to the working equipment, and the tail of the old tape is guided to the receiving machine to connect with the head of the new tape inside the receiving machine. This is to ensure that the working equipment does not stop running and to ensure production efficiency.

[0004] To achieve proper docking of the old material tape's tail and the new material tape's head, the tail of the old material tape and the head of the new material tape need to be aligned. During docking, the tape surface is typically kept horizontal, and the tape is moved horizontally along its extension direction. In existing technologies, such as the bonding machine for bonding new and old SMT material tapes of various widths disclosed in Chinese patent application number 201711266011.4, the new material tape conveyor device is a device that pulls the tape horizontally. However, its structure can only limit the tape from both horizontal sides and support it from below. During horizontal movement, the tape sometimes tilts upwards, which may cause the tail of the old material tape and the head of the new material tape to misalign, thus affecting the docking process. Utility Model Content

[0005] To address the aforementioned technical problems, the material strip moving device for SMT receiving machines provided by this utility model can reduce the impact of material strip tilting on the normal operation of the receiving process.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The present invention provides a material conveying device for an SMT receiving machine, comprising an infeed / outfeed mechanism and a pressing mechanism; the infeed / outfeed mechanism includes a supporting base plate assembly and a drive wheel; the supporting base plate assembly includes a first material loading platform; the first material loading platform is strip-shaped; the upper surface of the first material loading platform is horizontal; a hole is formed on the first material loading platform through which the drive wheel passes; the drive wheel is fixed through the hole on the first material loading platform; the horizontal cross-section of the upper rim of the drive wheel is higher than the upper surface of the first material loading platform; the pressing mechanism includes a first pressing platform and a driving mechanism; the lower surface of the first pressing platform is horizontal; the first pressing platform is fixed on the driving mechanism; the driving mechanism can drive the first pressing platform to move horizontally and vertically.

[0008] The material conveyor device for an SMT receiving machine provided by this utility model preferably has a driven wheel rotatably fixed on the first pressing platform; the horizontal cross-section of the lower rim of the driven wheel is lower than the lower surface of the first pressing platform.

[0009] The material conveyor device for an SMT receiving machine provided by this utility model preferably includes a motor in the feeding and discharging mechanism; the driving wheel is coaxially fixed on the output shaft of the motor; a drive gear is also coaxially fixed on the output shaft; a driven gear is coaxially fixed on the driven wheel; the driving mechanism can drive the first pressing platform to move until the drive gear meshes with the driven gear; when the drive gear and the driven gear rotate synchronously, the rim linear velocity of the driving wheel and the driven wheel is the same.

[0010] The material conveyor device for an SMT receiving machine provided by this utility model preferably further includes a waste material guiding mechanism; the feeding and discharging mechanism further includes a second material loading platform; the upper surface of the second material loading platform is flat with the upper surface of the first material loading platform; the second material loading platform is strip-shaped; the second material loading platform is fixed in the strip-shaped extension direction of the first material loading platform; the strip-shaped extension direction of the second material loading platform is consistent with the strip-shaped extension direction of the first material loading platform; a gap is left between the first material loading platform and the second material loading platform; the waste material guiding mechanism includes a waste material guiding block and a waste material guiding block moving device; the waste material guiding block is fixed on the waste material guiding block moving device; the waste material guiding block moving device can drive the waste material guiding block to move vertically; the waste material guiding block is disposed in the gap between the first material loading platform and the separate second material loading platform; the lower end of the waste material guiding block can be moved to a position higher than the upper surface of the first material loading platform; the lower end of the waste material guiding block can be moved to a position lower than the upper surface of the first material loading platform.

[0011] The material tape moving device for an SMT receiving machine provided by this utility model preferably further includes a scissor mechanism; the scissor mechanism is fixed on the first material loading platform; the scissor mechanism can cut the material tape fixed on the first material loading platform.

[0012] The material conveyor device for an SMT receiving machine provided by this utility model preferably includes a driving mechanism comprising a horizontal moving component and a vertical moving component; the horizontal moving component has an output shaft that can move horizontally; the output shaft of the horizontal moving component is perpendicular to the strip-shaped extension direction of the first material loading platform; the vertical moving component is fixed on the output shaft of the horizontal moving component; the vertical moving component has an output shaft that can move vertically; and the first material pressing platform is fixed on the output shaft of the vertical moving component.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] This utility model discloses a tape moving device for an SMT receiving machine, relating to the field of receiving machines, including a feeding / discharging mechanism and a pressing mechanism; the feeding / discharging mechanism includes a supporting base plate assembly and a drive wheel; the supporting base plate assembly includes a first loading platform; the first loading platform is strip-shaped; the upper surface of the first loading platform is horizontal; a hole is formed on the first loading platform through which the drive wheel passes; the drive wheel is fixed through the hole on the first loading platform; the horizontal cross-section of the upper rim of the drive wheel is higher than the upper surface of the first loading platform; the pressing mechanism includes a first pressing platform and a driving mechanism; the lower surface of the first pressing platform is horizontal; the first pressing platform is fixed to the driving mechanism; the driving mechanism can drive the first pressing platform to move horizontally and vertically. The tape moving device for an SMT receiving machine provided by this utility model solves the problem of tape easily tilting and affecting the receiving process in existing receiving machines, and can reduce the impact of tape tilting on the normal operation of the receiving process. Attached Figure Description

[0015] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0016] Figure 1 This is a schematic diagram of the overall structure of the tape moving device for an SMT receiving machine provided in Embodiment 1 of this utility model.

[0017] Figure 2 This is a structural schematic diagram of the support base plate assembly of the material tape moving device for an SMT receiving machine provided in Embodiment 1 of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the drive gear and driven gear of the material tape moving device for SMT receiving machine provided in Embodiment 1 of this utility model when they are engaged.

[0019] Figure 4 This is a schematic diagram showing the positional relationship between the driving wheel and the driven wheel of the material tape moving device for an SMT receiving machine provided in Embodiment 1 of this utility model.

[0020] Figure 5 This is a schematic diagram of the pressing mechanism of the tape moving device for an SMT receiving machine provided in Embodiment 1 of this utility model.

[0021] Figure 6 This is a schematic diagram of the waste material guiding mechanism of the material tape moving device for SMT receiving machine provided in Embodiment 1 of this utility model.

[0022] Figure 7 This is a schematic diagram of the position and structure of the scissor mechanism of the material tape moving device for an SMT receiving machine, as provided in Embodiment 1 of this utility model, compared to the feeding and discharging mechanism.

[0023] Figure 8 This is a schematic diagram of the scissor mechanism of the tape moving device for an SMT receiving machine provided in Embodiment 1 of this utility model. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. It should also be noted that the terminology used in this utility model is for describing specific implementations only and is not intended to limit the exemplary implementations according to this application.

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without inventive effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] The material tape moving device for an SMT receiving machine provided in Embodiment 1 of this utility model, such as Figures 1 to 8As shown, it includes a feeding / discharging mechanism 1 and a pressing mechanism 2. The feeding / discharging mechanism 1 includes a supporting base plate assembly 11 and a drive wheel 12. The supporting base plate assembly 11 includes a first loading platform 111. The first loading platform 111 is strip-shaped. The upper surface of the first loading platform 111 is horizontal. A hole is opened on the first loading platform 111 through which the drive wheel 12 passes and is fixed. The horizontal cross-section of the upper rim of the drive wheel 12 is higher than the upper surface of the first loading platform 111. The pressing mechanism 2 includes a first pressing platform 21 and a driving mechanism 22. The lower surface of the first pressing platform 21 is horizontal. The first pressing platform 21 is fixed on the driving mechanism 22. The driving mechanism 22 can drive the first pressing platform 21 to move horizontally and vertically.

[0028] The tape moving device for an SMT receiving machine provided in Embodiment 1 of this utility model requires the cooperation of two tape moving devices to move the tail of the old tape and the head of the new tape respectively. (Since the tape moving devices move the tape in the same way, the tail of the old tape and the head of the new tape are collectively referred to as the tape head.) Specifically, (using a robotic arm) the tape surface is kept horizontal, and the tape is moved vertically downward from the first loading platform 111, so that the lower side of the tape is against the first loading platform 111, thus placing a section of the tape head on the first loading platform 111. Then, the drive mechanism 22 drives the first pressing platform 21 to move, so that the lower surface of the first pressing platform 21 faces the tape. Then, the rotation of the drive wheel 12 drives the tape to move along the strip-shaped extension direction of the first loading platform 111. Compared with the prior art, which does not have a pressing mechanism 2, the tape is prone to bending upward during the movement (because the structure of the driving tape is against the tape). The structure of the drive tape, which applies pressure to a portion of the tape, does not provide a force to keep the tape flat. Since the tape is usually stored in a roll, it is prone to elastic deformation towards bending due to long-term roll storage, making it easy to curl up. In this embodiment, a first pressing platform 21 is set to apply pressure to the upper surface of the tape, thereby ensuring the flatness of the tape. The first pressing platform 21 is set to be movable by the drive mechanism 22 for the purpose of aligning the tape (to the first pressing platform 21). On the other hand, it also facilitates the camera (of the SMT receiving machine) to take pictures of the tape (when there is no obstruction from the first pressing platform 21, the condition of the tape can be captured more clearly. The purpose of taking pictures is to cut off the waste material at the head of the tape. The picture taking process is existing technology and will not be described in detail here). The combined action of the lower surface of the first pressing platform 21 and the upper surface of the first loading platform 111 prevents the tape from curling up, thereby reducing the impact of tape curling up on the normal operation of the subsequent receiving process.

[0029] The material tape moving device for SMT receiving machine provided in Embodiment 1 of this utility model solves the problem that the material tape of the existing receiving machine is prone to tilting and affecting the receiving process, and can reduce the impact of the material tape tilting on the normal operation of the receiving process.

[0030] To prevent sliding friction between the upper surface of the material strip and the lower surface of the first pressing platform 21, in this embodiment, a driven wheel 23 is rotatably fixed on the first pressing platform 21; the horizontal cross-section of the lower rim of the driven wheel 23 is lower than the lower surface of the first pressing platform 21. The presence of the driven wheel 23 restricts direct contact between the material strip and the lower surface of the first pressing platform 21, reducing the impact of material strip damage caused by sliding friction between the material strip and the lower surface of the first pressing platform 21.

[0031] To specifically realize the driving of the material belt by the feeding and discharging mechanism 1, as a preferred embodiment, in this embodiment, the feeding and discharging mechanism 1 further includes a motor 13; a drive wheel 12 is coaxially fixed on the output shaft of the motor 13; a drive gear 121 is also coaxially fixed on the output shaft of the motor 13; a driven gear 231 is coaxially fixed on the driven wheel 23; the driving mechanism 22 can drive the first pressing platform 21 to move until the drive gear 121 meshes with the driven gear 231; when the drive gear 121 and the driven gear 231 rotate synchronously, the rim linear velocity of the drive wheel 12 and the driven wheel 23 is the same. After the drive mechanism 22 moves the first pressing platform 21 to the point where its driven gear 231 meshes with the drive gear 121, the output shaft of the motor 13 rotates, and the drive wheel 12 and the driven wheel 23 rotate synchronously, applying horizontal frictional force from the upper and lower sides of the material belt respectively, thereby driving the material belt to move along the strip-shaped extension direction of the first loading platform 111. Compared with providing thrust only below the material belt, providing horizontal thrust on both the upper and lower sides of the material belt at the same time makes the effect of the material belt being pushed by force more stable (if there is only the drive wheel 12, the material belt may not be able to move normally due to relative slippage between the belt and the drive wheel 12 when it is tilted, but with the driven wheel 23, when the material belt is tilted, the upper surface of the material belt will contact the driven wheel 23 and be pushed by the driven wheel).

[0032] As a preferred embodiment, this model further includes a waste material guiding mechanism 3; the supporting base plate assembly 11 also includes a second loading platform 112; the upper surface of the second loading platform 112 is flush with the upper surface of the first loading platform 111; the second loading platform 112 is strip-shaped; the second loading platform 112 is fixed in the strip-shaped extension direction of the first loading platform 111; the strip-shaped extension direction of the second loading platform 112 is consistent with the strip-shaped extension direction of the first loading platform 111; a gap is left between the first loading platform 111 and the second loading platform 112; the waste material guiding mechanism 3 includes a guide... Waste block 31 and waste block moving device 32; waste block 31 is fixed on waste block moving device 32; waste block moving device 32 can drive waste block 31 to move vertically; waste block 31 is set in the gap between the first loading platform 111 and the separate second loading platform 112; the lower end of waste block 31 can be moved to a position higher than the upper surface of the first loading platform 111 (and the feed belt passes horizontally from below waste block 31 and above the first loading platform 111); the lower end of waste block 31 can be moved to a position lower than the upper surface of the first loading platform 111. The old material belt has waste material at its tail and the new material belt's head. To connect the old material belt tail and the new material belt head, this waste material needs to be removed first. Existing technology typically uses high-frequency shears to cut the material belt into small pieces. Because at the connection point, directly in front of the old material belt is another material belt (occupying the space), if a long strip of waste material is cut off, there is no space to accommodate it. Therefore, the waste material is usually cut into small pieces and discharged. In this embodiment, another primary purpose of setting up the pressing mechanism 2 is to cooperate with the waste material guiding mechanism 3. Specifically, the waste material guiding block moving device... 32 drives the waste guide block 31, pressing the head of the material strip below the waste guide block 31 down to the gap between the first loading platform 111 and the second loading platform 112. At this time, the material strip continues to move, and the head of the material strip will move downward from the gap between the first loading platform 111 and the second loading platform 112, and then from the first loading platform 111 (according to the observation of the material strip by the SMT receiving machine, the long section of waste material at the head of the material strip is cut off in one go). Then, the waste guide block 31 is moved upward by the waste guide block moving device 32, allowing the head of the material strip with the cut-off waste material to continue to move horizontally to the docking point. The presence of the pressing mechanism 2 can prevent the material strip from detaching from the support base plate assembly 11 during the operation of the waste guide mechanism 3.

[0033] As a preferred embodiment, this model further includes a scissor mechanism 4; the scissor mechanism 4 is fixed on the first material loading platform 111; the scissor mechanism 4 can cut the material strip fixed on the first material loading platform 111. The scissor mechanism 4 that can cut the material strip is prior art, such as the SMT receiving machine scissors disclosed in Chinese Patent Application No. 202022930833.1, which will not be described in detail here.

[0034] As a preferred embodiment, in this embodiment, the drive mechanism 22 includes a horizontal moving component 221 and a vertical moving component 222; the horizontal moving component 221 has an output shaft that can move horizontally; the output shaft of the horizontal moving component 221 is perpendicular to the strip-shaped extension direction of the first material loading platform 111; the vertical moving component 222 is fixed on the output shaft of the horizontal moving component 221; the vertical moving component 222 has an output shaft that can move vertically; the first pressing platform 21 is fixed on the output shaft of the vertical moving component 222. Both the horizontal moving component 221 and the vertical moving component 222 are devices that can drive objects to move in a linear direction, which is the prior art. In this embodiment, a screw and nut transmission structure is preferably adopted, in which the screw is driven to rotate by a motor, thereby driving the nut to move along the screw direction. Other structures such as electric cylinders and pneumatic cylinders can also be used as the horizontal moving component 221 and the vertical moving component 222, which will not be described in detail here.

[0035] In summary, this utility model discloses a tape moving device for an SMT receiving machine, relating to the field of receiving machines, including an infeed / outfeed mechanism and a pressing mechanism; the infeed / outfeed mechanism includes a supporting base plate assembly and a drive wheel; the supporting base plate assembly includes a first loading platform; the first loading platform is strip-shaped; the upper surface of the first loading platform is horizontal; a hole is formed on the first loading platform through which the drive wheel passes; the drive wheel is fixed through the hole on the first loading platform; the horizontal cross-section of the upper rim of the drive wheel is higher than the upper surface of the first loading platform; the pressing mechanism includes a first pressing platform and a driving mechanism; the lower surface of the first pressing platform is horizontal; the first pressing platform is fixed to the driving mechanism; the driving mechanism can drive the first pressing platform to move horizontally and vertically. The tape moving device for an SMT receiving machine provided by this utility model solves the problem of tape easily tilting and affecting the receiving process in existing receiving machines, and can reduce the impact of tape tilting on the normal operation of the receiving process.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A tape moving device for an SMT material receiving machine, characterized in that, The feeding and discharging mechanism and the pressing mechanism are included. The feeding and discharging mechanism includes a supporting bottom plate assembly and a driving wheel. The supporting bottom plate assembly includes a first supporting platform; the first supporting platform is in a strip shape; the upper surface of the first supporting platform is horizontal; the horizontal section of the upper side of the driving wheel is higher than the upper surface of the first supporting platform. The pressing mechanism includes a first pressing platform and a driving mechanism; the lower surface of the first pressing platform is horizontal; the first pressing platform is fixed on the driving mechanism; the driving mechanism can drive the first pressing platform to move horizontally and vertically.

2. The material belt moving device for the SMT material receiving machine according to claim 1, wherein A driven wheel is rotatably fixed on the first pressing platform; the horizontal section of the lower side of the driven wheel is lower than the lower surface of the first pressing platform.

3. The material belt moving device for the SMT material receiving machine according to claim 2, wherein The feeding and discharging mechanism further includes a motor; the output shaft of the motor coaxially fixes the driving wheel; The output shaft of the motor further coaxially fixes a driving gear; The driven wheel coaxially fixes a driven gear; The driving mechanism can drive the first pressing platform to move until the driving gear meshes with the driven gear; When the driving gear and the driven gear rotate synchronously, the linear speed of the wheel rim of the driving wheel is the same as that of the driven wheel.

4. The tape moving device for an SMT tape feeder according to claim 3, wherein The waste material guiding mechanism is further included; the supporting bottom plate assembly further includes a second supporting platform; The upper surface of the second supporting platform is flush with the upper surface of the first supporting platform; The second supporting platform is in a strip shape; The second supporting platform is fixed in the strip extension direction of the first supporting platform; the strip extension direction of the second supporting platform is consistent with that of the first supporting platform; The first supporting platform and the second supporting platform leave a gap therebetween; The waste material guiding mechanism includes a waste material guiding block and a waste material guiding block moving device; the waste material guiding block is fixed on the waste material guiding block moving device; the waste material guiding block moving device can drive the waste material guiding block to move vertically; The waste material guiding block is arranged at the gap between the first supporting platform and the second supporting platform; The lower end of the waste material guiding block can be moved to be higher than the upper surface of the first supporting platform; the lower end of the waste material guiding block can be moved to be lower than the upper surface of the first supporting platform.

5. The tape moving device for an SMT tape feeder according to claim 3, wherein The shearing mechanism is further included; the shearing mechanism is fixed on the first supporting platform; the shearing mechanism can cut the material belt fixed on the first supporting platform.

6. The tape moving device for an SMT tape feeder according to claim 1, wherein The driving mechanism includes a horizontal moving assembly and a vertical moving assembly; The horizontal moving assembly has an output shaft that can move horizontally; the output shaft of the horizontal moving assembly is perpendicular to the strip extension direction of the first supporting platform; The output shaft of the horizontal moving assembly fixes the vertical moving assembly; the vertical moving assembly has an output shaft that can move vertically; The first pressing platform is fixed on the output shaft of the vertical moving assembly.

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