Stamping die for FPC (Flexible Printed Circuit) processing

Abstract

The invention discloses a stamping die for FPC machining, and belongs to the technical field of FPC machining, the stamping die comprises a supporting and conveying assembly, a lower die assembly and an upper die assembly, the supporting and conveying assembly comprises a supporting plate, the lower die assembly is arranged on the upper wall of the supporting plate, the lower end of the upper die assembly is arranged on the side wall of the supporting plate, and the lower end of the upper die assembly is arranged on the side wall of the supporting plate. The upper end of the upper die assembly is arranged right at the upper end of the lower die assembly; in a sealed environment, an air pump conveys air into an air inlet cavity through a second connecting pipe and an air inlet pipe, the air in the air inlet cavity is exhausted through an air inlet groove, the cut FPC coiled material is cleaned, and air with dust is pumped out from an air outlet groove, an air outlet cavity, an air outlet pipe and a first connecting pipe under the action of an air pump; the upper end of the driving plate drives the limiting plate through the through hole, the limiting plate rotates with the connecting rod as the rotation center under the action of the driving plate, and the cut FPC board on the limiting plate falls into the storage piece.

Description

Technical Field

[0001] This invention belongs to the field of FPC processing technology, and particularly relates to a stamping die for FPC processing. Background Technology

[0002] Flexible printed circuit boards (FPCs) are highly reliable and extremely flexible printed circuit boards made with polyimide or polyester film as the substrate. They are characterized by high wiring density, light weight, and thinness. However, FPCs are often stamped using stamping dies during processing. Existing FPC stamping dies are inconvenient to collect the dust generated after stamping, and additional equipment is required to remove the stamped FPC sheets, making the operation cumbersome and increasing production costs. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a stamping die for FPC processing, which at least partially solves the problems mentioned in the background art.

[0004] The technical solution adopted in this invention is as follows: A stamping die for FPC processing includes a support conveying assembly, a lower die assembly and an upper die assembly. The support conveying assembly includes a support plate. The lower die assembly is disposed on the upper wall of the support plate, and the support plate supports the lower die assembly. The lower end of the upper die assembly is disposed on the side wall of the support plate, and the upper end of the upper die assembly is disposed directly above the lower die assembly. The lower mold assembly includes a first hydraulic rod, a lifting plate, and a drive plate. The fixed end of the first hydraulic rod is located on the upper wall of the support plate. The lifting plate is located on the movable end of the first hydraulic rod. The drive plate is provided in several groups, and the several groups of drive plates are evenly spaced on the support plate at the lower end of the lifting plate. The lifting plate is provided with several groups of through holes, the number of which is the same as the number of drive plates, and the drive plates are matched with the positions of the through holes. The drive plates are movable through the through holes.

[0005] Preferably, a limiting plate is movably installed at the through hole on the upper wall of the lifting plate. The limiting plate is located at the top of the driving plate. The lower mold assembly also includes a connecting rod and a connecting seat. The connecting seat is located on both sides of the limiting plate. The connecting rod is movably installed through one end of the limiting plate and the connecting seat in sequence. The connecting seat limits the limiting plate, and the limiting plate can rotate along the connecting rod.

[0006] Furthermore, the upper mold assembly includes a mounting plate, the lower end of which is connected to the side wall of the support plate, and the upper end of which is located above the lifting plate. A second hydraulic rod is mounted on the upper end of the mounting plate, and a lower pressure plate is mounted on the movable end of the second hydraulic rod. Several sets of stamping blocks are mounted on the bottom wall of the lower pressure plate. The number of stamping blocks is the same as the number of through holes, and the positions of the stamping blocks and through holes are matched. The stamping blocks are located directly above the limiting plate.

[0007] The lower pressure plate is movably mounted with several sets of limiting components, the number of which is the same as the number of stamping blocks. The limiting components are movably sleeved on the outside of the stamping blocks. Each set of limiting components includes a limiting frame, a first baffle, a second baffle, and a spring. The limiting frame is movably installed through the lower pressure plate, with its upper end located at the upper end of the lower pressure plate and its lower end located at the lower end of the lower pressure plate. The first baffle and the second baffle are located on the limiting frame at the lower end of the lower pressure plate, and their positions are opposite to each other. The stamping block is located between the limiting frame, the first baffle, and the second baffle. The upper end of the spring is connected to the upper wall of the limiting frame located at the upper end of the lower pressure plate, and the lower end of the spring is connected to the upper wall of the lower pressure plate. The first baffle, the second baffle, and the bottom wall of the limiting frame are all located in the same horizontal plane and all extend out of the bottom wall of the stamping block.

[0008] Preferably, the first enclosure panel has an air outlet chamber inside and an air outlet groove inside, the air outlet chamber and the air outlet groove are connected in a continuous manner, and an air outlet branch pipe is installed on the outside of the first enclosure panel, the air outlet branch pipe being connected in a continuous manner to the air outlet chamber.

[0009] The second enclosure has an air intake chamber inside and an air intake groove on its inner side. The air intake chamber and the air intake groove are connected in a continuous manner. An air intake branch pipe is installed on the outer side of the second enclosure and is connected in a continuous manner to the air intake chamber.

[0010] Preferably, an air pump and an air extraction pump are installed on the upper end of the mounting plate. A first connecting pipe is installed on the air extraction pump, and an air outlet pipe is installed on the first connecting pipe. The air outlet pipe is connected to an air outlet branch pipe. A second connecting pipe is installed on the air pump, and an air inlet pipe is installed on the second connecting pipe. The air inlet pipe is connected to an air inlet branch pipe.

[0011] Multiple sets of telescopic rods are installed between the lifting plate and the support plate. The lower end of the telescopic rod is located on the upper wall of the support plate, and the upper end of the telescopic rod is connected to the corner of the lifting plate.

[0012] Furthermore, a storage component is installed on the side of the support plate away from the mounting plate. When the limiting plate is tilted, the FPC roll that is stamped on the limiting plate falls into the storage component.

[0013] The supporting conveying assembly further includes connecting plates and drive rollers. The connecting plates are located at both ends of the upper wall of the supporting plate, and the drive rollers are movably mounted on the connecting plates. The upper mold assembly, the lower mold assembly, and the storage component are all located between the two sets of connecting plates. A motor base is mounted on one set of the connecting plates, and a motor is mounted on the motor base. The output shaft of the motor is connected to the drive roller. The FPC roll to be stamped is placed on the drive roller and is located between the upper mold assembly and the lower mold assembly. When the motor works, it drives the drive roller to rotate, which can move the FPC roll.

[0014] The beneficial effects of the present invention after adopting the above structure are as follows: (1) When the pressure is pressed down, the first baffle, the second baffle and the bottom wall of the limiting frame first contact the FPC roll on the limiting plate to fix the FPC roll. Then, as the second hydraulic rod continues to move down, the positions of the first baffle, the second baffle and the limiting frame remain unchanged, and the spring is stretched, which makes it easier for the stamping block to stamp the fixed FPC roll.

[0015] (2) After the stamping is completed, the second hydraulic rod drives the lower pressure plate to lift, and the lower pressure plate drives the stamping block to lift. The stamping block separates from the FPC roll. At this time, when the spring is still in the stretched state, the second hydraulic rod stops working. In a sealed environment, the air pump delivers gas to the air inlet chamber through the second connecting pipe and the air inlet pipe. The gas in the air inlet chamber is discharged through the air inlet groove to clean the cut FPC roll. The air with dust is extracted from the air outlet groove, air outlet chamber, air outlet pipe and the first connecting pipe under the action of the air pump.

[0016] (3) The first hydraulic rod can drive the lifting plate to move down. During the movement, the upper end of the drive plate drives the limiting plate through the through hole. Under the action of the drive plate, the limiting plate rotates around the connecting rod as the rotation center. The cut FPC plate on the limiting plate falls into the storage component. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the structure of a stamping die for FPC processing proposed in this invention. Figure 1 ; Figure 2 for Figure 1 A magnified view of a portion at point A; Figure 3 This is a schematic diagram of the structure of a stamping die for FPC processing proposed in this invention. Figure 2 ; Figure 4 for Figure 3Sectional view; Figure 5 for Figure 4 A magnified view of a portion of point B.

[0019] In the attached drawings: 1. Support conveyor assembly; 2. Lower mold assembly; 3. Upper mold assembly; 4. Support plate; 5. First hydraulic rod; 6. Lifting plate; 7. Drive plate; 8. Limiting plate; 9. Connecting rod; 10. Connecting seat; 11. Mounting plate; 12. Second hydraulic rod; 13. Lower pressure plate; 14. Stamping block; 15. Limiting frame; 16. First enclosure plate; 17. Second enclosure plate; 18. Spring; 19. Air outlet chamber; 20. Air outlet groove; 21. Air inlet chamber; 22. Air inlet groove; 23. Air pump; 24. Air extraction pump; 25. First connecting pipe; 26. Air outlet pipe; 27. Second connecting pipe; 28. Air inlet pipe; 29. ​​Telescopic rod; 30. Storage component; 31. Connecting plate; 32. Drive roller; 33. Motor base; 34. Motor; 35. Through hole. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] like Figures 1-5 As shown, a stamping die for FPC processing includes a support and conveying assembly 1, a lower die assembly 2, and an upper die assembly 3. The support and conveying assembly 1 includes a support plate 4. The lower die assembly 2 is disposed on the upper wall of the support plate 4, and the support plate 4 supports the lower die assembly 2. The lower end of the upper die assembly 3 is disposed on the side wall of the support plate 4, and the upper end of the upper die assembly 3 is disposed directly above the lower die assembly 2. The lower mold assembly 2 includes a first hydraulic rod 5, a lifting plate 6, and a drive plate 7. The fixed end of the first hydraulic rod 5 is located on the upper wall of the support plate 4. The lifting plate 6 is located on the movable end of the first hydraulic rod 5. The drive plate 7 is provided in several groups, and the several groups of drive plates 7 are evenly spaced on the support plate 4 at the lower end of the lifting plate 6. The lifting plate 6 is provided with several groups of through holes 35. The number of through holes 35 is the same as the number of drive plates 7, and the drive plates 7 are matched with the through holes 35 in position. The drive plates 7 can be movably installed through the through holes 35.

[0023] A limiting plate 8 is movably installed at the through hole 35 on the upper wall of the lifting plate 6. The limiting plate 8 is located at the top of the drive plate 7. The lower mold assembly 2 also includes a connecting rod 9 and a connecting seat 10. The connecting seat 10 is located on both sides of the limiting plate 8. The connecting rod 9 is movably installed through one end of the limiting plate 8 and the connecting seat 10 in sequence. The connecting seat 10 limits the limiting plate 8, and the limiting plate 8 can rotate along the connecting rod 9. It should be noted that the operation of the first hydraulic rod 5 can drive the lifting plate 6 to move downward. During the movement, the upper end of the drive plate 7 drives the limiting plate 8 through the through hole 35. Under the action of the drive plate 7, the limiting plate 8 rotates around the connecting rod 9 as the rotation center, and the cut FPC board on the limiting plate 8 falls into the storage component 30.

[0024] The upper mold assembly 3 includes a mounting plate 11. The lower end of the mounting plate 11 is connected to the side wall of the support plate 4. The upper end of the mounting plate 11 is located at the upper end of the lifting plate 6. A second hydraulic rod 12 is mounted on the upper end of the mounting plate 11. A lower pressure plate 13 is mounted on the movable end of the second hydraulic rod 12. Several sets of stamping blocks 14 are mounted on the bottom wall of the lower pressure plate 13. The number of stamping blocks 14 is the same as the number of through holes 35, and the positions of the stamping blocks 14 and the through holes 35 are matched. The stamping blocks 14 are located at the upper end of the limiting plate 8.

[0025] Several sets of limiting components are movably mounted on the lower pressure plate 13. The number of limiting components is the same as the number of stamping blocks 14. The limiting components are movably sleeved on the outside of the stamping blocks 14. Each set of limiting components includes a limiting frame 15, a first baffle plate 16, a second baffle plate 17, and a spring 18. The limiting frame 15 is movably disposed through the lower pressure plate 13, with its upper end located at the upper end of the lower pressure plate 13 and its lower end located at the lower end of the lower pressure plate 13. The first baffle plate 16 and the second baffle plate 17 are provided with... The first baffle plate 16 and the second baffle plate 17 are placed opposite each other on the limiting frame 15 at the lower end of the lower pressure plate 13. The stamping block 14 is located between the limiting frame 15, the first baffle plate 16 and the second baffle plate 17. The upper end of the spring 18 is connected to the upper wall of the limiting frame 15 at the upper end of the lower pressure plate 13, and the lower end of the spring 18 is connected to the upper wall of the lower pressure plate 13. The first baffle plate 16, the second baffle plate 17 and the bottom wall of the limiting frame 15 are all located in the same horizontal plane and all extend out of the bottom wall of the stamping block 14. It should be noted that the operation of the second hydraulic rod 12 can push the lower pressure plate 13 to move downward. The lower pressure plate 13 can drive the limiting component and the stamping block 14 to move downward. The bottom wall of the first enclosure plate 16, the second enclosure plate 17 and the limiting frame 15 first contact the FPC roll on the limiting plate 8 to fix the FPC roll. Then, as the second hydraulic rod 12 continues to move downward, the positions of the first enclosure plate 16, the second enclosure plate 17 and the limiting frame 15 remain unchanged, the spring 18 is stretched, and the stamping block 14 stamps the fixed FPC roll.

[0026] The first enclosure 16 has an air outlet chamber 19 inside and an air outlet groove 20 inside. The air outlet chamber 19 and the air outlet groove 20 are connected through each other. An air outlet branch pipe is installed on the outside of the first enclosure 16 and is connected through the air outlet chamber 19.

[0027] The second enclosure 17 has an air inlet chamber 21 inside and an air inlet groove 22 inside. The air inlet chamber 21 and the air inlet groove 22 are connected through each other. An air inlet branch pipe is installed on the outside of the second enclosure 17 and is connected through the air inlet chamber 21.

[0028] An air pump 23 and an air extraction pump 24 are installed on the upper end of the mounting plate 11. A first connecting pipe 25 is installed on the air extraction pump 24. An air outlet pipe 26 is installed on the first connecting pipe 25. The air outlet pipe 26 is connected to an air outlet branch pipe. A second connecting pipe 27 is installed on the air pump 23. An air inlet pipe 28 is installed on the second connecting pipe 27. The air inlet pipe 28 is connected to an air inlet branch pipe. The first connecting pipe 25 and the second connecting pipe 27 are telescopic pipes. It should be noted that the air pump 23 delivers gas to the air inlet chamber 21 through the second connecting pipe 27 and the air inlet pipe 28. The gas in the air inlet chamber 21 is discharged through the air inlet groove 22 to clean the cut FPC roll. The air containing dust is extracted from the air outlet groove 20, the air outlet chamber 19, the air outlet pipe 26 and the first connecting pipe 25 under the action of the air pump 24.

[0029] Multiple sets of telescopic rods 29 are installed between the lifting plate 6 and the support plate 4. The lower end of the telescopic rod 29 is located on the upper wall of the support plate 4, and the upper end of the telescopic rod 29 is connected to the corner of the lifting plate 6.

[0030] A storage component 30 is installed on the side of the support plate 4 away from the mounting plate 11. When the limiting plate 8 is tilted, the FPC roll material that is stamped on the limiting plate 8 falls into the storage component 30.

[0031] The support conveying assembly 1 also includes a connecting plate 31 and a drive roller 32. The connecting plate 31 is located at both ends of the upper wall of the support plate 4. The drive roller 32 is movably mounted on the connecting plate 31. The upper mold assembly 3, the lower mold assembly 2, and the storage component 30 are all located between the two sets of connecting plates 31. A motor base 33 is installed on one set of the connecting plates 31, and a motor 34 is installed on the motor base 33. The output shaft end of the motor 34 is connected to the drive roller 32. The FPC roll material to be stamped is placed on the drive roller 32 and is located between the upper mold assembly 3 and the lower mold assembly 2. The operation of the motor 34 drives the drive roller 32 to rotate, which can drive the FPC roll material to move.

[0032] The mounting plate 11 is equipped with a detection system on both sides of its upper end, which is used to detect the movement of the FPC roll and to determine whether it has reached a position where the FPC roll can be punched.

[0033] The specific usage is as follows: The FPC roll to be stamped is placed on the drive roller 32 and between the upper die assembly 3 and the lower die assembly 2. The motor 34 drives the drive roller 32 to rotate, which can move the FPC roll. The detection system is used to detect the movement of the FPC roll. When the detection system determines that the FPC roll between the upper die assembly 3 and the lower die assembly 2 can be stamped, the motor 34 stops working.

[0034] The first hydraulic rod 5 moves the lifting plate 6 upward, the drive plate 7 is located at the lower end of the lifting plate 6, and the limiting plate 8 is placed horizontally. It moves to the lower end of the FPC roll, so that the FPC roll at this position is placed against the upper wall of the limiting plate 8. The second hydraulic rod 12 moves the lower pressure plate 13 downward, which in turn moves the limiting assembly and the stamping block 14 downward. The bottom walls of the first enclosure plate 16, the second enclosure plate 17, and the limiting frame 15 first contact the FPC roll on the limiting plate 8 to fix it. Then, as the second hydraulic rod 12 continues to move downward, the positions of the first enclosure plate 16, the second enclosure plate 17, and the limiting frame 15 remain unchanged, the spring 18 is stretched, and the stamping block 14 stamps the fixed FPC roll. After stamping, the second hydraulic rod 12 moves the lower pressure plate 13 upward, and the lower pressure plate 13 moves the stamping block 14 upward. When the FPC roll is detached from the spring 14, the second hydraulic rod 12 stops working while the spring 18 is still in a stretched state. The air pump 23 delivers gas to the air inlet chamber 21 through the second connecting pipe 27 and the air inlet pipe 28. The gas in the air inlet chamber 21 is discharged through the air inlet groove 22 to clean the cut FPC roll. The air with dust is extracted from the air outlet groove 20, the air outlet chamber 19, the air outlet pipe 26 and the first connecting pipe 25 by the air extraction pump 24. Then the air pump 23 and the air extraction pump 24 both stop working. The second hydraulic rod 12 drives the lower pressure plate 13 to move upward, and the first hydraulic rod 5 drives the lifting plate 6 to move downward. During the movement, the upper end of the drive plate 7 drives the limiting plate 8 through the through hole 35. The limiting plate 8 rotates around the connecting rod 9 as the rotation center under the action of the drive plate 7. The cut FPC board on the limiting plate 8 falls into the storage component 30. Then, the motor 34 drives the drive roller 32 to rotate, and the drive roller 32 continues to move the FPC roll. The detection system is used to detect the movement of the FPC roll. When the detection system determines that the FPC roll between the upper die assembly 3 and the lower die assembly 2 can be stamped, the motor 34 stops working, and the above steps are repeated.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A stamping die for FPC processing, characterized in that, It includes a support conveying assembly, a lower mold assembly, and an upper mold assembly. The support conveying assembly includes a support plate. The lower mold assembly is disposed on the upper wall of the support plate. The lower end of the upper mold assembly is disposed on the side wall of the support plate, and the upper end of the upper mold assembly is disposed directly above the lower mold assembly. The lower mold assembly includes a first hydraulic rod, a lifting plate, and a drive plate. The fixed end of the first hydraulic rod is located on the upper wall of the support plate. The lifting plate is located on the movable end of the first hydraulic rod. The drive plate is provided in several groups, and the several groups of drive plates are evenly spaced on the support plate at the lower end of the lifting plate. The lifting plate is provided with several groups of through holes, the number of which is the same as the number of drive plates, and the drive plates are matched with the positions of the through holes. The drive plates are movable through the through holes.

2. A stamping die for FPC processing according to claim 1, characterized in that, A limiting plate is movably installed at the through hole on the upper wall of the lifting plate. The limiting plate is located at the top of the driving plate. The lower mold assembly also includes a connecting rod and a connecting seat. The connecting seat is located on both sides of the limiting plate. The connecting rod is movably installed through one end of the limiting plate and the connecting seat in sequence.

3. A stamping die for FPC processing according to claim 2, characterized in that, The upper mold assembly includes a mounting plate, the lower end of which is connected to the side wall of the support plate, and the upper end of which is located above the lifting plate. A second hydraulic rod is mounted on the upper end of the mounting plate, and a lower pressure plate is mounted on the movable end of the second hydraulic rod. Several sets of stamping blocks are mounted on the bottom wall of the lower pressure plate. The number of stamping blocks is the same as the number of through holes, and the positions of the stamping blocks and through holes are matched. The stamping blocks are located directly above the limiting plate.

4. A stamping die for FPC processing according to claim 3, characterized in that, Several sets of limiting components are movably installed on the lower pressure plate. The number of limiting components is the same as the number of stamping blocks. The limiting components are movably sleeved on the outside of the stamping blocks. Each set of limiting components includes a limiting frame, a first baffle, a second baffle, and a spring. The limiting frame is movably installed through the lower pressure plate, with its upper end located at the upper end of the lower pressure plate and its lower end located at the lower end of the lower pressure plate. The first baffle and the second baffle are located on the limiting frame at the lower end of the lower pressure plate, and their positions are opposite to each other. The stamping block is located between the limiting frame, the first baffle, and the second baffle. The upper end of the spring is connected to the upper wall of the limiting frame located at the upper end of the lower pressure plate, and the lower end of the spring is connected to the upper wall of the lower pressure plate. The first baffle, the second baffle, and the bottom wall of the limiting frame are all located in the same horizontal plane and all extend out of the bottom wall of the stamping block.

5. A stamping die for FPC processing according to claim 4, characterized in that, The first enclosure panel has an air outlet chamber inside and an air outlet groove on the inner side of the first enclosure panel. The air outlet chamber and the air outlet groove are connected in a continuous manner. An air outlet branch pipe is installed on the outer side of the first enclosure panel. The air outlet branch pipe is connected in a continuous manner to the air outlet chamber.

6. A stamping die for FPC processing according to claim 5, characterized in that, The second enclosure has an air intake chamber inside and an air intake groove on the inner side of the second enclosure. The air intake chamber and the air intake groove are connected through each other. An air intake branch pipe is installed on the outer side of the second enclosure and is connected through each other to the air intake chamber.

7. A stamping die for FPC processing according to claim 6, characterized in that, An air pump and a vacuum pump are installed on the upper end of the mounting plate. A first connecting pipe is installed on the vacuum pump, and an air outlet pipe is installed on the first connecting pipe. The air outlet pipe is connected to an air outlet branch pipe. A second connecting pipe is installed on the air pump, and an air inlet pipe is installed on the second connecting pipe. The air inlet pipe is connected to an air inlet branch pipe.

8. A stamping die for FPC processing according to claim 7, characterized in that, Multiple sets of telescopic rods are installed between the lifting plate and the support plate. The lower end of the telescopic rod is located on the upper wall of the support plate, and the upper end of the telescopic rod is connected to the corner of the lifting plate.

9. A stamping die for FPC processing according to claim 8, characterized in that, A storage component is installed on the side of the support plate away from the mounting plate. When the limiting plate is tilted, the FPC roll material that is punched on the limiting plate falls into the storage component.

10. A stamping die for FPC processing according to claim 9, characterized in that, The support conveying assembly also includes a connecting plate and a drive roller. The connecting plate is located at both ends of the upper wall of the support plate, and the drive roller is movably mounted on the connecting plate. The upper mold assembly, the lower mold assembly, and the storage component are all located between the two sets of connecting plates. A motor base is mounted on one set of the connecting plates, and a motor is mounted on the motor base. The output shaft end of the motor is connected to the drive roller.

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