Fishing net folding equipment

Abstract

The invention relates to fishing net folding equipment which comprises a bottom plate, a top plate is arranged above the bottom plate, the bottom plate and the top plate are fixedly connected through a supporting frame, a net pulling mechanism and a supporting plate are arranged between the bottom plate and the top plate from top to bottom, and the net pulling mechanism is used for driving a fishing net to reciprocate. A clamp is fixed to the two opposite sides of the top of the supporting plate, a first limiting rod is detachably arranged on the two opposite sides of the top of the supporting plate, a second limiting rod is arranged over the clamp, a third limiting rod is arranged over the first limiting rod, and a first air cylinder and a second air cylinder which are fixedly connected with the second limiting rod and the third limiting rod are arranged on the side face of the top plate. A driving mechanism for driving the supporting plate to lift is arranged at the top of the top plate; the net pulling mechanism drives the fishing net to reciprocate and is matched with the first air cylinder, the second air cylinder and the driving mechanism, so that the fishing net is automatically folded at the top of the supporting plate, time and labor are saved, the working intensity of workers is reduced, the fishing net folding efficiency is improved, and the packaging progress is prevented from being affected.

Description

Technical Field

[0001] The invention relates to the technical field of fishing net folding, and in particular to a fishing net folding device. Background Art

[0002] After the fishing net is produced, it needs to be folded before it can be put into the packaging bag for packaging because the fishing net is soft, smooth and slender. In actual operation, the fishing net is usually folded manually, which is time-consuming and labor-intensive due to the long length of the fishing net, increasing the workload of the workers, and the folding efficiency of the fishing net is low, which affects the packaging progress. Summary of the invention

[0003] The purpose of the present invention is to design a fishing net folding device so as to solve the problems mentioned in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A fishing net folding device comprises a bottom plate, a top plate is provided above the bottom plate, the bottom plate and the top plate are fixedly connected by a support frame, a net pulling mechanism and a support plate are provided between the bottom plate and the top plate from top to bottom, the net pulling mechanism is used to drive the fishing net to reciprocate, a clamp and a detachable first limit rod are respectively fixed on opposite sides of the top of the support plate, a second limit rod is provided directly above the clamp, a third limit rod is provided directly above the first limit rod, a first cylinder and a second cylinder fixedly connected to the second limit rod and the third limit rod are respectively provided on the sides of the top plate, and a driving mechanism for driving the support plate to rise and fall is provided on the top of the top plate.

[0006] Furthermore, the net pulling mechanism includes two support rods fixed on the support frame and arranged opposite to each other, the top of the support rod is slidably connected with a slider, two symmetrically arranged connecting rods are fixedly connected between the two sliders, the two ends of the bottom of the connecting rod are respectively fixedly connected with two first support seats, a rolling roller is rotatably connected between the two first support seats, and the support rod is provided with a conveyor belt for driving the slider to perform reciprocating motion.

[0007] Furthermore, the two ends of the conveyor belt are respectively connected with a driving wheel and a driven wheel, and the driving wheel and the driven wheel are both rotatably connected to the top of the support rod, the driving wheels of the two support rods are fixedly connected by a first rotating shaft, and the driven wheels of the two support rods are fixedly connected by a second rotating shaft, one end of the first rotating shaft is connected to a first motor, and the top of the slider is fixedly connected to the surface of the conveyor belt.

[0008] Furthermore, a slide rail is provided on the top of the support rod, and a roller adapted to the slide rail is rotatably connected to the bottom of the sliding block.

[0009] Furthermore, the driving mechanism includes two first pulleys that are relatively arranged and rotatably connected to the top of the top plate, a rope is wound around the first pulley, both ends of the rope are fixedly connected to the support plate through a second pulley, and a second motor is provided on the top of the top plate, and the second motor is transmission-connected to the two first pulleys.

[0010] Furthermore, a reducer is fixed on the top of the top plate, the two first pulleys are fixedly connected to the output end of the reducer through the third rotating shaft, and the second motor is fixedly connected to the input end of the reducer.

[0011] Furthermore, two connecting plates are fixedly connected to one side of the top plate, and the third cylinder and the fourth cylinder are fixedly connected to the bottoms of the two connecting plates respectively, and the fifth cylinder and the sixth cylinder corresponding to the third cylinder and the fourth cylinder respectively are fixedly connected to the other side of the top plate, the first cylinder is fixedly connected to the output end of the third cylinder, the second cylinder is fixedly connected to the output end of the fourth cylinder, and the output ends of the fifth cylinder and the sixth cylinder are both fixedly connected to pressure blocks.

[0012] Furthermore, a pressing plate is provided at the bottom of the top plate, a seventh cylinder is fixedly connected to the top of the top plate, and an output end of the seventh cylinder passes through the top of the top plate and is fixedly connected to the pressing plate.

[0013] Furthermore, it also includes two support columns located on one side of the support frame and arranged opposite to each other, the two support columns are fixedly connected by a first cylinder, the side of the support column away from the support frame is fixedly connected with a first connecting handle inclined from top to bottom, the ends of the two first connecting handles away from the support column are fixedly connected by a second cylinder, the outer sides of the two first connecting handles are rotatably connected with a second connecting handle, and the ends of the two second connecting handles away from the first connecting handles are fixedly connected by a third cylinder.

[0014] Furthermore, second support seats are fixed on opposite sides of the support plate, and the second support seats are provided with limiting holes for the first limiting rod to pass through, and universal wheels are fixedly connected to the four corners of the bottom of the base plate.

[0015] The beneficial effects of the present invention are:

[0016] The method is to first place one end of the fishing net on the support plate, clamp one end of the fishing net with a clamp, and then use the first limiting rod to press the side of the fishing net away from the clamp. Then the net pulling mechanism drives the fishing net to move from the first limiting rod to the direction of the clamp, so that the fishing net is folded on the support plate. After the fishing net driven by the net pulling mechanism moves to just above the clamp, the driving mechanism first drives the support plate to descend to a set height, and the first cylinder then drives the second limiting rod to extend, so that the second limiting rod is located above the folded fishing net. After that, the net pulling mechanism continues to drive the fishing net to move from the clamp to the direction of the first limiting rod, and limits the fishing net through the second limiting rod, so that the fishing net is folded. After the fishing net driven by the net pulling mechanism moves to just above the first limiting rod, the driving mechanism first drives the support plate to descend to a set height, and the second cylinder then drives the third limiting rod to extend, so that the third limiting rod is located above the folded fishing net. The net pulling mechanism drives the fishing net to move from the first limiting rod to the direction of the clamp, and limits the fishing net through the third limiting rod, so that the fishing net is folded. After the fishing net driven by the net pulling mechanism moves to just above the clamp, the first cylinder drives the second limiting rod to retract, and then the driving mechanism drives the supporting plate to descend to a set height, and the first cylinder drives the second limiting rod to extend, so that the second limiting rod is located above the folded fishing net. After that, the net pulling mechanism continues to drive the fishing net to move from the clamp to the direction of the first limiting rod, wherein the second cylinder has the same function as the first cylinder, and drives the fishing net to perform reciprocating motion through the net pulling mechanism, and cooperates with the first cylinder, the second cylinder and the driving mechanism to realize automatic folding of the fishing net on the top of the supporting plate, saving time and effort, reducing the work intensity of workers, improving the folding efficiency of the fishing net, and avoiding affecting the packaging progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure in which the first limiting rod and the supporting plate are detachably connected in the present invention;

[0021] Figure 4 It is an exploded view of the net pulling mechanism in the present invention;

[0022] Figure 5This is a schematic diagram of the structure of the connection between the pressure plate and the seventh cylinder in the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of fixing one end of the fishing net on the support plate before working in the present invention;

[0024] Figure 7 This is a working state diagram of folding the fishing net in the present invention.

[0025] The names of the components marked in the figure are as follows:

[0026] 1. Bottom plate; 2. Bottom plate; 3. Support frame; 4. Support plate; 5. Clip; 6. First limit rod; 7. Second limit rod; 8. Third limit rod; 9. First cylinder; 10. Second cylinder; 11. Support rod; 12. Slider; 13. Connecting rod; 14. First support seat; 15. Roller; 16. Conveyor belt; 17. Driving wheel; 18. Driven wheel; 19. First rotating shaft; 20. Second rotating shaft; 21. First motor; 22. Slide rail; 23. Roller; 24. First pulley; 25. Rope; 26. Second pulley; 27. Second motor; 28. Reducer; 29. ​​Third rotating shaft; 30. Connecting plate; 31. Third cylinder; 32. Fourth cylinder; 33. Fifth cylinder; 34. Sixth cylinder; 35. Pressing block; 36. Pressing plate; 37. Seventh cylinder; 38. Support column; 39. First cylinder; 40. First connecting handle; 41. Second cylinder; 42. Second connecting handle; 43. Third cylinder; 44. Second supporting seat; 45. Limiting hole; 46. Universal wheel; 47. Fishing net. DETAILED DESCRIPTION

[0027] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0028] like Figure 1-7As shown, a fishing net folding device comprises a bottom plate 1, a top plate 2 is arranged above the bottom plate 1, the bottom plate 1 and the top plate 2 are fixedly connected by a support frame 3, a net pulling mechanism and a support plate 4 are arranged between the bottom plate 1 and the top plate 2 from top to bottom, the net pulling mechanism is used to drive the fishing net 47 to reciprocate, a clamp 5 and a first limiting rod 6 are respectively fixed on opposite sides of the top of the support plate 4, a second supporting seat 44 is fixed on opposite sides of the support plate 4, a limiting hole 45 for the first limiting rod 6 to pass through is arranged on the second supporting seat 44, one end of the fishing net 47 is clamped by the clamp 5, and the side of the fishing net 47 away from the clamp 5 is pressed by the first limiting rod; A second limiting rod 7 is provided just above the sub-plate 5, and a third limiting rod 8 is provided just above the first limiting rod 6. The second limiting rod 7 and the third limiting rod 8 are used to limit the bending part of the fishing net 47, and the fishing net 47 is folded in cooperation with the net pulling mechanism; a first cylinder 9 and a second cylinder 10 fixedly connected to the second limiting rod 7 and the third limiting rod 8 are provided on the side of the top plate 2, respectively, and the second limiting rod 7 and the third limiting rod 8 are extended and retracted by the first cylinder 9 and the second cylinder 10; a driving mechanism for driving the support plate 4 to be lifted and lowered is provided on the top of the top plate 2, and universal wheels 46 are fixedly connected to the four corners of the bottom of the bottom plate 1, so as to facilitate the transfer of the folding equipment and increase convenience;

[0029] The net pulling mechanism includes two support rods 11 fixed on the support frame 3 and arranged opposite to each other, a slider 12 is slidably connected to the top of the support rod 11, a slide rail 22 is provided on the top of the support rod 11, a slider 12 is provided above the slide rail 22, and a roller 23 adapted to the slide rail 22 is rotatably connected to the bottom of the slider 12, thereby increasing the convenience of moving the slider 12; two symmetrically arranged connecting rods 13 are fixedly connected between the two sliders 12, two first supporting seats 14 are fixedly connected to the two ends of the bottom of the connecting rod 13, a rolling roller 15 is rotatably connected between the two first supporting seats 14, a conveyor belt 16 is provided on the support rod 11, and a driving wheel 17 and a driven wheel 18 are connected to the two ends of the conveyor belt 16, respectively, the driving wheel 17 and the driven wheel 18 are both rotatably connected to the top of the support rod 11, and the two The driving wheel 17 of each support rod 11 is fixedly connected through a first rotating shaft 19, and the driven wheels 18 of the two support rods 11 are fixedly connected through a second rotating shaft 20. One end of the first rotating shaft 19 is connected to a first motor 21. The top of the slider 12 is fixedly connected to the surface of the conveyor belt 16. The first rotating shaft 19 is driven by the first motor 21 to rotate, and the first rotating shaft 19 drives the driving wheel 17 to rotate, thereby realizing the rotation of the conveyor belt 16. The slider 12 is driven to reciprocate through the conveyor belt 16, and the fishing net 47 passes between the two rolling rollers 15 from top to bottom. When the slider 12 drives the two rolling rollers 15 to reciprocate, the fishing net 47 will contact one of the rolling rollers 15 and slide down with the rotation of the rolling roller 15, so that the fishing net 47 can be reciprocatingly folded;

[0030] The driving mechanism includes two first pulleys 24 which are relatively arranged and rotatably connected to the top of the top plate 2. A rope 25 is wound around the first pulley 24. Both ends of the rope 25 are fixedly connected to the support plate 4 through a second pulley 26. A reducer 28 is fixed to the top of the top plate 2. Both first pulleys 24 are fixedly connected to the output end of the reducer 28 through a third rotating shaft 29. A second motor 27 is fixedly connected to the input end of the reducer 28. The reducer 28 is driven to rotate by the second motor 27, and the reducer 28 drives the third rotating shaft 29 to rotate. When the first pulley 24 rotates, the two ends of the rope 25 can be stored or released at the same time, thereby realizing the rise or fall of the support plate 4.

[0031] Two connecting plates 30 are fixedly connected to one side of the top plate 2, and the bottoms of the two connecting plates 30 are fixedly connected to the third cylinder 31 and the fourth cylinder 32 respectively. The other side of the top plate 2 is fixedly connected to the fifth cylinder 33 and the sixth cylinder 34 corresponding to the third cylinder 31 and the fourth cylinder 32 respectively. The first cylinder 9 is fixedly connected to the output end of the third cylinder 31, the second cylinder 10 is fixedly connected to the output end of the fourth cylinder 32, and the output ends of the fifth cylinder 33 and the sixth cylinder 34 are fixedly connected to the pressure block 35. The second limiting rod 7 of the first cylinder 9 or the third limiting rod 8 of the second cylinder 10 After the extension, the second limiting rod 7 is driven down by the third cylinder 31, and the fifth cylinder 33 drives the pressing block 35 to press the second limiting rod 7, or the third limiting rod 8 is driven down by the fourth cylinder 32, and the sixth cylinder 34 drives the pressing block 35 to press the third limiting rod 8. By pressing the second limiting rod 7 or the third limiting rod 8 from top to bottom on the upper surface of the folding fishing net 47, it can be avoided that the second limiting rod 7 or the third limiting rod 8 will pass through the side of the folding fishing net 47 when extending due to the looseness of the upper surface of the folding fishing net 47, thereby affecting the folding of the fishing net 47;

[0032] A pressing plate 36 is provided at the bottom of the top plate 2, and a seventh cylinder 37 is fixedly connected to the top of the top plate 2. The output end of the seventh cylinder 37 passes through the top of the top plate 2 and is fixedly connected to the pressing plate 36. The pressing plate 36 is driven down by the seventh cylinder 37, thereby compressing the folded fishing net 47 and reducing the occupied volume of the fishing net 47.

[0033] The folding mechanism is used to pull the fishing net 47 from the bottom to the bottom of the folding mechanism, and the folding mechanism is used to pull the fishing net 47 from the bottom to the top ...

[0034] It also includes a controller, which belongs to the existing technology. The controller is electrically connected to the electrical components of the folding device to achieve coordinated work between the electrical components.

[0035] Working principle:

[0036] like Figure 1-7 As shown, when the fishing net folding device of the present application is used, one end of the fishing net 47 is passed from top to bottom between the second cylinder 41 and the third cylinder 43, and then the fishing net 47 is passed from bottom to top between the third cylinder 43 and the first cylinder 39, and finally the fishing net 47 is passed from top to bottom between the two rolling rollers 15 of the net pulling mechanism and then placed on the support plate 4, and the fishing net 47 is clamped with a clamp 5, and then the first limiting rod 6 is passed through the limiting holes 45 of the two second support seats 44, so that the first limiting rod 6 presses the side of the fishing net 47 away from the clamp 5;

[0037] After the fishing net 47 is fixed on the support plate 4, the controller switch of the device is started, and the first motor 21 drives the first rotating shaft 19 to rotate, and the first rotating shaft 19 drives the driving wheel 17 to rotate, so that the conveyor belt 16 drives the slider 12 to move. When the slider 12 drives the two rolling rollers 15 to move, the fishing net 47 will contact one of the rolling rollers 15 and slide down with the rotation of the rolling rollers 15, and the net pulling mechanism will drive the fishing net 47 to move from the first line limit rod 6 to the direction of the clamp 5, so that the fishing net 47 is folded;

[0038] After the net pulling mechanism drives the fishing net 47 to move to just above the clamp 5, the driving mechanism first drives the supporting plate 4 to descend to a set height, the first cylinder 9 then drives the second limiting rod 7 to extend, and then the third cylinder 31 drives the second limiting rod 7 to descend, and the fifth cylinder 33 drives the pressing block 35 to press the second limiting rod 7, so that the second limiting rod 7 is pressed from top to bottom on the upper surface of the folded fishing net 47, and then the net pulling mechanism continues to drive the fishing net 47 to move from the clamp 5 to the direction of the first limiting rod 6, and limits the fishing net 47 through the second limiting rod 7, so that the fishing net is folded, and after the net pulling mechanism drives the fishing net 47 to move to just above the first limiting rod 6, the driving mechanism first drives the supporting plate 4 to descend to a set height, the second cylinder 10 then drives the third limiting rod 8 to extend, and then the fourth cylinder 32 drives the third limiting rod 8 to descend, and the sixth cylinder 34 drives the pressing block 35 to press the third limiting rod 8, so that the third limiting rod 8 is pressed from top to bottom on the upper surface of the folding fishing net 47, and then the net pulling mechanism continues to drive the fishing net 47 to move from the first line limiting rod 6 to the direction of the clamp 5, and the fishing net is limited by the third limiting rod 8, so that the fishing net is folded. After the fishing net 47 driven by the net pulling mechanism moves to just above the clamp 5, the first cylinder 9 drives the second limiting rod 7 to retract, and then the third cylinder 31 drives the first cylinder 9 to rise and return to the original position, and then the driving mechanism drives the support plate 4 to descend to a set height, and the first cylinder 9 drives the second limiting rod 7 to extend, and then the third cylinder 31 drives the second limiting rod 7 to descend, and the fifth cylinder 33 drives the pressing block 35 to press the second limiting rod 7, so that the second limiting rod 7 is pressed from top to bottom on the upper surface of the folding fishing net 47, and the following folding process continuously repeats the above operation, wherein the second cylinder 10 has the same function as the first cylinder 9, and the sixth cylinder 34 has the same function as the fifth cylinder 33;

[0039] After the fishing net 47 is folded a certain number of times, the above-mentioned electrical components return to their original positions and stop working. Thereafter, the seventh cylinder 37 drives the pressing plate 36 to descend, thereby compressing the folded fishing net 47 and reducing the volume occupied by the fishing net 47. After the fishing net 47 is compressed, the driving mechanism drives the support plate 4 to rise to the set height, and the stopped electrical components continue to work until the fishing net 47 is folded.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fishing net folding device, comprising a bottom plate (1), characterized in that: A top plate (2) is provided above the bottom plate (1), the bottom plate (1) and the top plate (2) are fixedly connected via a support frame (3), a net pulling mechanism and a support plate (4) are provided between the bottom plate (1) and the top plate (2) from top to bottom, the net pulling mechanism is used to drive the fishing net (47) to reciprocate, a clamp (5) and a detachable first limit rod (6) are respectively fixed on opposite sides of the top of the support plate (4), a second limit rod (7) is provided just above the clamp (5), a third limit rod (8) is provided just above the first limit rod (6), a first cylinder (9) and a second cylinder (10) fixedly connected to the second limit rod (7) and the third limit rod (8) are respectively provided on the side surfaces of the top plate (2), and a driving mechanism for driving the support plate (4) to rise and fall is provided on the top of the top plate (2).

2. The fishing net folding device according to claim 1, characterized in that: The net pulling mechanism comprises two support rods (11) fixed on a support frame (3) and arranged opposite to each other, a slider (12) being slidably connected to the top of the support rod (11), two symmetrically arranged connecting rods (13) being fixedly connected between the two sliders (12), two first supporting seats (14) being fixedly connected to the two ends of the bottom of the connecting rod (13), a rolling roller (15) being rotatably connected between the two first supporting seats (14), and a conveyor belt (16) being provided on the support rod (11) for driving the slider (12) to perform reciprocating motion.

3. The fishing net folding device according to claim 2, characterized in that: The two ends of the conveyor belt (16) are respectively connected with a driving wheel (17) and a driven wheel (18), and the driving wheel (17) and the driven wheel (18) are both rotatably connected to the top of the support rod (11), the driving wheels (17) of the two support rods (11) are fixedly connected via a first rotating shaft (19), and the driven wheels (18) of the two support rods (11) are fixedly connected via a second rotating shaft (20), one end of the first rotating shaft (19) is connected with a first motor (21), and the top of the slider (12) is fixedly connected to the surface of the conveyor belt (16).

4. The fishing net folding device according to claim 3, characterized in that: A slide rail (22) is provided at the top of the support rod (11), and a roller (23) adapted to the slide rail (22) is rotatably connected to the bottom of the slider (12).

5. The fishing net folding device according to claim 1, characterized in that: The driving mechanism comprises two first pulleys (24) which are arranged opposite to each other and are rotatably connected to the top of the top plate (2); a rope (25) is wound around the first pulley (24); both ends of the rope (25) are fixedly connected to the support plate (4) through a second pulley (26); a second motor (27) is provided on the top of the top plate (2); and the second motor (27) is transmission-connected to the two first pulleys (24).

6. The fishing net folding device according to claim 5, characterized in that: A reducer (28) is fixed on the top of the top plate (2), the two first pulleys (24) are fixedly connected to the output end of the reducer (28) via the third rotating shaft (29), and the second motor (27) is fixedly connected to the input end of the reducer (28).

7. The fishing net folding device according to claim 1, characterized in that: Two connecting plates (30) are fixedly connected to one side of the top plate (2); the bottoms of the two connecting plates (30) are respectively fixedly connected to a third cylinder (31) and a fourth cylinder (32); the other side of the top plate (2) is fixedly connected to a fifth cylinder (33) and a sixth cylinder (34) respectively corresponding to the third cylinder (31) and the fourth cylinder (32); the first cylinder (9) is fixedly connected to the output end of the third cylinder (31); the second cylinder (10) is fixedly connected to the output end of the fourth cylinder (32); and the output ends of the fifth cylinder (33) and the sixth cylinder (34) are both fixedly connected to a pressing block (35).

8. The fishing net folding device according to claim 1, characterized in that: A pressing plate (36) is provided at the bottom of the top plate (2), a seventh cylinder (37) is fixedly connected to the top of the top plate (2), and an output end of the seventh cylinder (37) passes through the top of the top plate (2) and is fixedly connected to the pressing plate (36).

9. The fishing net folding device according to claim 1, characterized in that: It also includes two support columns (38) located on one side of the support frame (3) and arranged opposite to each other, the two support columns (38) are fixedly connected via a first cylinder (39), a first connecting handle (40) arranged obliquely from top to bottom is fixedly connected to the side of the support column (38) away from the support frame (3), the ends of the two first connecting handles (40) away from the support column (38) are fixedly connected via a second cylinder (41), the outer sides of the two first connecting handles (40) are rotatably connected to second connecting handles (42), and the ends of the two second connecting handles (42) away from the first connecting handles (40) are fixedly connected via a third cylinder (43).

10. The fishing net folding device according to claim 1, characterized in that: Second support seats (44) are fixed on opposite sides of the support plate (4), and the second support seats (44) are provided with limit holes (45) for the first limit rod (6) to pass through. Universal wheels (46) are fixedly connected to the four corners of the bottom of the base plate (1).

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