Fine mesh type safety net production equipment

Abstract

The invention discloses dense mesh type safety net production equipment, and relates to the technical field of dense mesh type safety net production. The dense mesh type safety net production equipment comprises a feeding tooth assembly, the feeding tooth assembly comprises an adjusting base, the adjusting base is provided with an upper surface and a lower surface, and a through hollow part is arranged between the upper surface and the lower surface; an embedding middle hole is formed in the middle of each single tooth ring, a groove communicated with the embedding middle hole is formed in one side of each single tooth ring, a rotating shaft is arranged on the upper surface of the adjusting seat, and the rotating shaft and the embedding middle holes are embedded through the grooves by the multiple single tooth rings, so that feeding teeth are formed on the rotating shaft by the multiple single tooth rings; the single tooth ring can independently rotate on the rotating shaft so as to change an effective net feeding area of the single tooth ring; the feeding teeth are of a split structure, on one hand, the split single tooth rings can be independently rotated on the rotating shaft, and therefore the effective net feeding area of the single tooth rings is adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of close-mesh safety net production, in particular to a close-mesh safety net production device. Background Art

[0002] Close-mesh safety nets are generally used in construction projects. Their main function is to provide safety protection for construction sites. They can effectively prevent the free fall of various objects on the construction site, thus creating a buffering effect. Therefore, they are also called "close-mesh building safety vertical nets". They are the colored vertical nets that we usually see surrounding the entire building during construction. Most of them are green, but some are blue or very few are other colors.

[0003] The production process of close-mesh safety net in the prior art is:

[0004] 1. Spinning: The polyester fiber is stretched through a spinning machine to form yarn.

[0005] 2. Weaving: The yarn is woven into a dense mesh through a loom. In this step, different mesh sizes and colors can be selected according to customer needs.

[0006] 3. Edge binding: Sew the outer edge of the dense mesh to prevent the dense mesh yarn from coming off.

[0007] 4. Shaping: The woven dense mesh is shaped by heat pressing to make the mesh more uniform and flat.

[0008] 5. Cutting: Cut the shaped dense mesh into different sizes according to customer needs.

[0009] 6. Packaging: Pack the cut dense mesh to ensure it is not contaminated during delivery.

[0010] When the close-mesh safety net is hemmed, a sewing device is required. The sewing device in the prior art is generally designed for cloth, and its feed teeth are metal tooth structures.

[0011] However, for dense mesh, the metal tooth structure is subject to greater wear and tear. Once one of the teeth is damaged, the feeding accuracy of the entire feed tooth will be affected. Summary of the invention

[0012] In view of the deficiencies of the prior art, the present invention provides a close-mesh safety net production device, which solves the problem in the prior art that once one of the teeth is damaged, the feeding accuracy of the entire feeding tooth is affected.

[0013] To achieve the above objectives, the present invention is implemented through the following technical solutions: a close-mesh safety net production equipment, including a feed tooth assembly, the feed tooth assembly including: an adjustment seat, the adjustment seat having an upper and lower surface, and a through hollow portion is provided between the upper and lower surfaces; a single tooth ring, a mosaic middle hole is provided in the middle of the single tooth ring, and a groove connected to the mosaic middle hole is provided on one side of the single tooth ring, a rotating shaft is provided on the upper surface of the adjustment seat, and a plurality of the single tooth rings are engaged with the mosaic middle hole through the grooves, so that a plurality of the single tooth rings form a feed tooth on the rotating shaft; the single tooth ring can rotate on the rotating shaft alone to change the effective net feeding area of ​​the single tooth ring.

[0014] Furthermore, the single tooth ring is arc-shaped or regular polygonal when no groove is provided.

[0015] Furthermore, mounting bosses are provided at the four corners of the upper surface of the adjustment seat, the swivel is rotatably mounted on the mounting bosses, and a knob connected to the swivel is provided on the outer side of the mounting boss; a supporting bottom frame is provided under the adjustment seat, an integral connecting piece is provided on one side of the supporting bottom frame, and a toothed bracket is installed on the side of the connecting piece away from the supporting bottom frame; an adjusting screw is rotatably mounted on the upper surface of the supporting bottom frame, and the adjusting screw is threadedly connected to the adjusting seat to adjust the height of the adjusting seat relative to the supporting bottom frame.

[0016] Furthermore, the dental frame includes a frame body fixed to the connecting plate, a tooth lifting connection portion arranged at one end of the frame body, and a tooth moving connection portion arranged at the other end of the frame body; it also includes a moving component, the moving component includes a rotating arm capable of active rotation, a first connecting rod rotatably installed at the other end of the rotating arm, and a second connecting rod rotatably installed at the other end of the first connecting rod, a fixed axis is fixed to the other end of the second connecting rod, the spatial position of the fixed axis is limited to be immovable, a third connecting rod is also fixed on the fixed axis, and the other end of the third connecting rod is rotatably connected to the tooth moving connection portion.

[0017] Furthermore, the moving assembly also includes a material moving motor, a material moving shaft is fixedly provided at the power output end of the material moving motor, a first gear is installed at the other end of the material moving shaft, a second gear is meshed below the first gear, and the second gear is used to drive the rotating arm to actively rotate.

[0018] Furthermore, the first connecting rod includes a first head portion rotatably connected to the rotating arm, a second head portion rotatably connected to the second connecting rod, and an adjusting portion disposed between the first head portion and the second head portion.

[0019] Furthermore, one end of the adjusting portion is rotatably connected to the second head portion via a bearing, and the other end of the adjusting portion is rotatably connected to the first head portion via a thread.

[0020] Furthermore, one end of the adjusting portion is fixedly connected to the second head portion, and the other end of the adjusting portion is inserted into the first head portion, and the adjusting portion is fixed in the first head portion by a clamping bolt.

[0021] Furthermore, the tooth lifting assembly includes a tooth lifting shaft, a connecting gear fixed at one end of the tooth lifting shaft, and a turntable fixed at the other end of the tooth lifting shaft. An eccentric wheel is rotatably installed on the other side of the turntable, and the upper side of the eccentric wheel is rotatably connected to the tooth lifting connection part.

[0022] Furthermore, it also includes a mounting base, the upper surface of which is provided with a device body, and a removable upper cover is installed on the mounting base, a removable pressure cover is installed on the removable upper cover, a receiving hole is opened on the removable pressure cover, and the single tooth ring is located in the receiving hole.

[0023] The present invention has the following beneficial effects:

[0024] (1) This type of close-mesh safety net production equipment has a split structure in which the feed teeth are capable of being rotated on a rotating shaft individually to adjust the effective mesh feeding area of ​​the individual tooth rings. For example, if the feeding area on the upper surface of the individual tooth rings is worn or damaged, the individual tooth rings can be rotated to rotate the remaining parts of the individual tooth rings to the upper surface for feeding. On the other hand, if a single individual tooth ring is damaged, it can be replaced individually. On the other hand, if there are impurities such as dust on the individual tooth rings, they can be disassembled and thoroughly cleaned to avoid the situation where continuous feeding cannot be achieved due to the accumulation of dirt.

[0025] (2) This type of close-mesh safety net production equipment is arc-shaped or regular polygonal when no groove is provided on the single tooth ring. When it is set to a regular polygon, its contact area with the close-mesh safety net is larger and the feeding effect is better.

[0026] (3) This type of close-mesh safety net production equipment, by setting up a rotating material transfer motor, does not need to use the swing motor currently used, so the damage to the motor can be reduced.

[0027] (4) This type of close-mesh safety net production equipment is provided with a first gear and a second gear. When the material transfer motor rotates, the second gear is driven to rotate through the first gear, and then the rotating arm is driven to rotate, driving the first connecting rod to make a reciprocating motion. When the first connecting rod makes a reciprocating motion, its other end can drive the second connecting rod to make a reciprocating motion. When the second connecting rod makes a reciprocating motion, it can drive the fixed axis to swing forward and backward. When the fixed axis swings forward and backward, it can drive the tooth frame to make a reciprocating motion through the third connecting rod, so that the feed tooth can transport the close-mesh safety net once in one reciprocating formation, thereby realizing feeding, and when the material transfer motor rotates one circle, the feed tooth can reciprocate twice, thereby improving the feeding efficiency.

[0028] (5) In this type of close-mesh safety net production equipment, the length of the first connecting rod can be adjusted, thereby adjusting the feed amount of each material transfer to adapt to different needle distances.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a matching diagram of the material moving assembly, the tooth lifting assembly and the feed tooth assembly of the present invention;

[0031] Figure 2 For the present invention Figure 1 Another perspective of the picture;

[0032] Figure 3 An exploded view of the feed dog assembly and the tooth holder of the present invention;

[0033] Figure 4 It is an exploded view of the single tooth ring and the rotating shaft of the present invention;

[0034] Figure 5 It is a side view of the circular single tooth ring of the present invention;

[0035] Figure 6 It is a schematic structural diagram of a polygonal single tooth ring of the present invention;

[0036] Figure 7 It is an assembly diagram of the material moving component, the tooth lifting component and the tooth frame of the present invention;

[0037] Figure 8 Schematic diagram of the internal structure of the first connecting rod in the first embodiment of the present invention;

[0038] Fig. 9 Schematic diagram of the internal structure of the first connecting rod in the second embodiment of the present invention;

[0039] Fig.10 It is an overall diagram of the close-mesh safety net production equipment of the present invention;

[0040] Fig.11 It is a diagram showing the coordination of the detachable upper cover and the detachable pressing cover of the present invention;

[0041] Fig.12 It is a schematic structural diagram of the detachable gland of the present invention.

[0042] In the figure, 100, equipment body; 200, removable upper cover; 300, removable pressure cover; 400, feed tooth assembly; 410, supporting bottom frame; 420, mounting convex seat; 430, single tooth ring; 431, embedded middle hole; 432, groove; 440, hollow part; 450, knob; 460, adjustment seat; 470, adjustment screw; 480, connecting piece; 490, rotating shaft; 500, tooth lifting assembly; 510, connecting gear; 520, tooth lifting shaft; 53 0. Turntable; 540. Eccentric wheel; 600. Moving assembly; 610. Material transfer motor; 620. Material transfer shaft; 630. First gear; 640. Second gear; 650. Rotating arm; 660. First connecting rod; 661. First head; 662. Adjusting part; 663. Second head; 670. Second connecting rod; 680. Third connecting rod; 700. Tooth frame; 710. Frame body; 720. Tooth lifting connection part; 730. Tooth moving connection part; 800. Mounting base. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] Embodiment 1:

[0046] See also Figure 1 - Figure 5As shown, the embodiment of the present invention provides a technical solution: a close-mesh safety net production device, comprising a feed tooth assembly 400 for conveying a close-mesh safety net, the feed tooth assembly 400 comprises an adjustment seat 460, the adjustment seat 460 has an upper and lower surface, and a through hollow portion 440 is provided between the upper and lower surfaces, the function of the hollow portion 440 is to pass a sewing needle through, thereby ensuring the up and down movement of the sewing needle; a single tooth ring 430 is also provided, and a chiseling middle hole 430 is provided in the middle of the single tooth ring 430 1, and a groove 432 connected to the embedded middle hole 431 is opened on one side of the single tooth ring 430, a rotating shaft 490 is provided on the upper surface of the adjustment seat 460, and a plurality of single tooth rings 430 are embedded with the rotating shaft 490 and the embedded middle hole 431 through the groove 432, and a plurality of single tooth rings 430 are arranged on the rotating shaft 490 to form a feeding tooth, so that when the adjustment seat 460 is displaced, all the feeding teeth can be driven to move synchronously, and then the feeding teeth can push the close-mesh safety net, so that the close-mesh safety net can be fed during sewing.

[0047] Preferably, the rotating shaft 490 is interference fit with the embedded middle hole 431, and the width of the groove 432 is smaller than the diameter of the embedded middle hole 431, so that the stability of the single tooth ring 430 on the rotating shaft 490 can be ensured after the single tooth ring 430 and the rotating shaft 490 are embedded.

[0048] In addition, the material of the single tooth ring 430 is preferably elastic steel, so that the single tooth ring 430 itself has elasticity, making it easy to insert into the rotating shaft 490 through the groove 432.

[0049] Therefore, since the feed tooth has a split structure, on the one hand, the split single tooth ring 430 can be rotated individually on the rotating shaft 490, so as to adjust the effective mesh feeding area of ​​the single tooth ring 430. For example, if the feeding area on the upper surface of the single tooth ring 430 is worn or damaged, the single tooth ring 430 can be rotated so that the remaining parts of the single tooth ring 430 can be rotated to the upper surface for feeding; on the other hand, a single single tooth ring 430 can be replaced individually if it is damaged; on the other hand, once there is dust and other impurities on the single tooth ring 430, it can be disassembled and thoroughly cleaned to avoid the situation where continuous feeding cannot be caused by the accumulation of dirt.

[0050] Combination Figure 4 and Figure 6 As shown, the single tooth ring 430 mentioned here is arc-shaped or a regular polygon when the groove 432 is not provided. When it is set to a regular polygon, its contact area with the dense mesh safety net is larger and the feeding effect is better.

[0051] Combination Figure 1 , Figure 2 and Figure 7As shown, since the wear degree of multiple single tooth rings 430 is mostly the same, when all the single tooth rings 430 need to be rotated synchronously, all the single tooth rings 430 can be rotated in one step. For this purpose, mounting bosses 420 are provided at the four corners of the upper surface of the adjustment seat 460, and the swivel 490 is rotatably installed on the mounting boss 420. A knob 450 connected to the swivel 490 is provided on the outer side of the mounting boss 420. The rotation of the swivel 490 can be achieved by rotating the knob 450. When the swivel 490 rotates, all the single tooth rings 430 can be driven to rotate, so that the positions of all the single tooth rings 430 can be adjusted in one step, and the position adjustment of the effective feeding area of ​​all the single tooth rings 430 can be achieved.

[0052] like Figure 3 In addition, during long-term use, the adjustment seat 460 will change due to mechanical vibration, causing its height to change. Being too high or too low will affect the accuracy of cloth feeding. In order to solve this problem, a support bottom frame 410 is provided under the adjustment seat 460. An adjusting screw 470 is rotatably mounted on the upper surface of the support bottom frame 410, and the adjusting screw 470 is threadedly connected to the adjustment seat 460. When the adjusting screw 470 is rotated, a thread force can be generated between the adjusting screw 470 and the adjustment seat 460, thereby adjusting the height of the adjustment seat 460 to reach the desired height.

[0053] In addition, the lower end of the adjusting screw 470 is rotatably mounted on the supporting bottom frame 410 via a bearing, and the adjusting screw 470 cannot be displaced relative to the supporting bottom frame 410 .

[0054] Combination Figure 2 and Figure 3 As shown, in order to install the support base frame 410 so that the position of the support base frame 410 can be fixed, an integrated connecting piece 480 is provided on one side of the support base frame 410, and a tooth rack 700 is installed on the side of the connecting piece 480 away from the support base frame 410. When the tooth rack 700 is displaced, the adjustment seat 460 and the feeding teeth thereon can be driven to move synchronously through the connecting piece 480 and the support base frame 410, thereby achieving the feeding purpose of the feeding teeth.

[0055] Combination Figure 3 As shown, the dental frame 700 mentioned above includes a frame body 710 fixedly connected to the connecting plate 480 , a tooth lifting connection portion 720 disposed at one end of the frame body 710 , and a tooth moving connection portion 730 disposed at the other end of the frame body 710 .

[0056] The dense mesh safety net production equipment provided by the embodiment of the present invention also includes a moving component 600, which includes a rotating arm 650 capable of active rotation, a first connecting rod 660 rotatably installed at the other end of the rotating arm 650, and a second connecting rod 670 rotatably installed at the other end of the first connecting rod 660. A fixed axis is fixed at the other end of the second connecting rod 670, and the spatial position of the fixed axis is limited to be immovable. A third connecting rod 680 is also fixed on the fixed axis, and the other end of the third connecting rod 680 is rotatably connected to the shifting tooth connection part 730.

[0057] In this embodiment, when the rotating arm 650 rotates, it drives the first connecting rod 660 to perform reciprocating motion. When the first connecting rod 660 performs reciprocating motion, its other end can drive the second connecting rod 670 to perform reciprocating motion. When the second connecting rod 670 performs reciprocating motion, it can drive the fixed axis to swing forward and backward. When the fixed axis swings forward and backward, it can drive the tooth frame 700 to perform reciprocating motion through the third connecting rod 680, so that the feeding tooth can transport the dense mesh safety net once in one reciprocating formation, thereby realizing feeding.

[0058] Combination Figure 1 and Figure 2 As shown, in order to realize the rotation of the rotating arm 650, the above-mentioned moving component 600 also includes a material moving motor 610, and a material moving shaft 620 is fixedly provided at the power output end of the material moving motor 610, so that the material moving motor 610 can drive the material moving shaft 620 to rotate, and a first gear 630 is installed at the other end of the material moving shaft 620, and a second gear 640 is meshed below the first gear 630. The second gear 640 is used to drive the rotating arm 650 to actively rotate, so that the rotation of the material moving shaft 620 can drive the first gear 630 to rotate, and the first gear 630 can drive the second gear 640 to rotate.

[0059] Furthermore, in this embodiment, the material moving motor 610 does not need to be the swing motor currently used. The material moving motor 610 in the present invention is a rotating motor, so the damage to the motor can be reduced.

[0060] In addition, the diameter of the first gear 630 should be larger than the diameter of the second gear 640, preferably an integer multiple thereof. For example, when the diameter of the first gear 630 is 1 cm, the diameter of the second gear 640 is 0.5 cm. Thus, when the first gear 630 rotates one circle, it can drive the second gear 640 to rotate two circles. The two circles of rotation can drive the tooth rack 700 to make two reciprocating motions, thereby realizing two feedings and improving the feeding efficiency.

[0061] Combination Figure 8As shown, since the stitch lengths of the safety net vary during the sewing process, in order to match the stitch lengths, the feed amount of each net feed needs to be changed. In order to achieve the purpose of changing the feed amount, the first connecting rod 660 mentioned above includes a first head 661 rotatably connected to the rotating arm 650, a second head 663 rotatably connected to the second connecting rod 670, and an adjusting portion 662 disposed between the first head 661 and the second head 663. The distance between the first head 661 and the second head 663 can be adjusted by the adjusting portion 662. When the distance between the two increases, the length of the entire first connecting rod 660 increases, so that its swing range changes, and then the swing amplitude of the above-mentioned tooth frame 700 is changed. When its swing amplitude changes, the swing amplitude of the feed tooth will also change. Then, the larger the swing amplitude, the greater the feed amount, and the smaller the swing amplitude, the smaller the feed amount.

[0062] Therefore, the dense mesh safety net production equipment provided in the embodiment of the present invention can adjust the feed amount adapted to the needle length according to the size of the needle length, so as to achieve the desired needle length.

[0063] Preferably, scale lines are provided on the adjustment portion 662 so that the adjustment length can be known to intuitively obtain the desired needle distance.

[0064] Combination Figure 8 As shown, in order to facilitate the adjustment of the position of the adjusting part 662, one end of the adjusting part 662 mentioned above is rotatably connected to the second head 663 via a bearing, and the other end of the adjusting part 662 is threadedly connected to the first head 661. By rotating the adjusting part 662, a thread force is generated between the adjusting part 662 and the first head 661, so that the distance between the two can be changed, and then the length of the entire first connecting rod 660 can be adjusted.

[0065] In addition, the scale lines mentioned above should be set on the outer surface of the adjustment part 662.

[0066] Combination Figure 1 , Figure 2 and Figure 7 As shown, since the reciprocating motion of the feeding tooth net alone cannot push the material in a single direction, a tooth lifting component 500 should also be provided. The tooth lifting component 500 is used to intermittently lift the material. During the lifting stage of the feeding tooth, the moving component 600 drives the material to be fed in the feeding direction. When the tooth lifting component 500 does not lift the material, the moving component 600 returns to its original position. At this time, the height of the feeding tooth is lower than the height of the material, so it will not bring the material back.

[0067] The tooth lifting assembly 500 mentioned above includes a tooth lifting shaft 520, a connecting gear 510 fixed at one end of the tooth lifting shaft 520, and a turntable 530 fixed at the other end of the tooth lifting shaft 520. An eccentric wheel 540 is rotatably installed on the other side of the turntable 530, and the upper side of the eccentric wheel 540 is rotatably connected to the tooth lifting connection part 720.

[0068] In this embodiment, when the tooth lifting shaft 520 rotates, it can drive the turntable 530 to rotate. When the turntable 530 rotates, it can drive the eccentric wheel 540 to produce vertical displacement, so that the eccentric wheel 540 can drive the tooth frame 700 to produce vertical displacement.

[0069] In addition, a gear on the main shaft of the device should be meshed on one side of the connecting gear 510, so that the main shaft of the device can drive the tooth-lifting shaft 520 to rotate through the connecting gear 510, and the tooth-lifting shaft 520 can drive the turntable 530 to rotate.

[0070] Combination Fig.10 - Fig.12 As shown, the dense mesh safety net production equipment provided by the embodiment of the present invention also includes a mounting base 800, which serves as a desktop support in the equipment. A device body 100 is provided on the upper surface of the mounting base 800, and a mechanical structure is provided inside the device body 100, which is used to enable the main motor of the device to drive the sewing needle to move up and down reciprocatingly to achieve the purpose of sewing. A removable upper cover 200 is installed on the mounting base 800, and a removable pressure cover 300 is installed on the removable upper cover 200. A receiving hole is opened on the removable pressure cover 300, and a single tooth ring 430 is located in the receiving hole. The height of the single tooth ring 430 should be 0.7-0.9 cm protruding from the upper surface of the receiving hole.

[0071] In addition, the fixed axis mentioned above should be installed on the removable upper cover 200 through a bearing seat.

[0072] When in use (working), the dense mesh safety net that needs to be hemmed is placed in the sewing position. When the main motor of the equipment is working, the sewing needle can reciprocate to perform sewing operations, and the main motor drives the tooth lifting shaft 520 to rotate through the connecting gear 510, so that the tooth lifting shaft 520 can drive the turntable 530 to rotate. When the turntable 530 rotates, it can drive the eccentric wheel 540 to move in the up and down directions, so that the eccentric wheel 540 can drive the tooth frame 700 to move in the vertical direction, and And it reciprocates in the vertical direction, so that the tooth frame 700 can drive the supporting bottom frame 410, the adjustment seat 460 and the single tooth ring 430 to reciprocate in the vertical direction. At the same time, the material moving motor 610 can drive the material moving shaft 620 to rotate. A first gear 630 is installed at the other end of the material moving shaft 620. A second gear 640 is meshed below the first gear 630. The second gear 640 is used to drive the rotating arm 650 to rotate actively, so that the rotation of the material moving shaft 620 can drive the first gear 6 30 rotates, the first gear 630 can drive the second gear 640 to rotate, the second gear 640 can drive the rotating arm 650 to rotate, when the rotating arm 650 rotates, it drives the first connecting rod 660 to do reciprocating motion, when the first connecting rod 660 does reciprocating motion, its other end can drive the second connecting rod 670 to do reciprocating motion, when the second connecting rod 670 does reciprocating motion, it can drive the fixed axis to swing forward and backward, when the fixed axis swings forward and backward, it can drive the tooth frame 700 to do reciprocating motion through the third connecting rod 680, The material tooth can transport the dense mesh safety net once in one reciprocating stroke, thereby realizing feeding. The diameter of the first gear 630 should be larger than the diameter of the second gear 640, preferably an integer multiple thereof. For example, when the diameter of the first gear 630 is 1 cm, the diameter of the second gear 640 is 0.5 cm. Therefore, when the first gear 630 rotates one circle, it can drive the second gear 640 to rotate two circles. Its two circles of rotation can drive the tooth frame 700 to make two reciprocating motions, realizing two feedings and improving feeding efficiency.

[0073] During long-term use, the adjustment seat 460 will change due to mechanical vibration, causing its height to change. Being too high or too low will affect the accuracy of cloth feeding. In order to solve this problem, a support base frame 410 is provided under the adjustment seat 460. An adjusting screw 470 is rotatably mounted on the upper surface of the support base frame 410, and the adjusting screw 470 is threadedly connected to the adjustment seat 460. When the adjusting screw 470 is rotated, a thread force can be generated between the adjusting screw 470 and the adjustment seat 460, thereby adjusting the height of the adjustment seat 460 to reach the desired height.

[0074] Since the feeding teeth are of a split structure, on the one hand, the split single tooth ring 430 can be rotated individually on the rotating shaft 490, so as to adjust the effective feeding area of ​​the single tooth ring 430. For example, if the feeding area on the upper surface of the single tooth ring 430 is worn or damaged, the single tooth ring 430 can be rotated so that the remaining parts of the single tooth ring 430 are rotated to the upper surface for feeding; on the other hand, a single single tooth ring 430 can be replaced individually if it is damaged; on the other hand, once there are dust and other impurities on the single tooth ring 430, it can be disassembled and thoroughly cleaned to avoid the situation where continuous feeding cannot be caused by the accumulation of dirt. When the single tooth ring 430 does not have the groove 432, it is an arc or a regular polygon. When it is set to a regular polygon, its contact area with the close-mesh safety net is larger, and the feeding effect is better.

[0075] Embodiment 2:

[0076] like Fig. 9 , which is different from the first embodiment, one end of the adjusting portion 662 is fixedly connected to the second head 663, preferably by welding, and the other end of the adjusting portion 662 is inserted into the first head 661, and the adjusting portion 662 is fixed in the first head 661 by a clamping bolt, that is, the clamping bolt is assembled on the side of the first head 661, and the adjusting portion 662 can be fixed inside the first head 661 by tightening the clamping bolt. When it is necessary to adjust the length of the first connecting rod 660, it is only necessary to loosen the clamping bolt, and then adjust the exposed length of the adjusting portion 662 relative to the first head 661 until the required length is reached, and then use the clamping bolt to lock the adjusting portion 662 in the first head 661.

[0077] In summary, the close-mesh safety net production equipment, by making the feeding teeth into a split structure, on the one hand, the split single tooth ring 430 can be rotated separately on the rotating shaft 490, so as to adjust the effective net feeding area of ​​the single tooth ring 430, for example, when the feeding area on the upper surface of the single tooth ring 430 is worn or damaged, the single tooth ring 430 can be rotated to rotate the remaining parts of the single tooth ring 430 to the upper surface for feeding; on the other hand, a single single tooth ring 430 can be replaced separately if it is damaged; on the other hand, once there are dust and other impurities on the single tooth ring 430, it can be disassembled and thoroughly cleaned to avoid the situation where continuous feeding cannot be caused by the accumulation of dirt; when the single tooth ring 430 does not have the groove 432, it is an arc or a regular polygon. When it is set to a regular polygon, its contact area with the close-mesh safety net is larger, and the feeding effect is better; a rotating material transfer motor 610 is provided, and there is no need to use the swing motor currently used. The material moving motor 610 in the invention is a rotating motor, so the damage to the motor can be reduced; the present invention is provided with a first gear 630 and a second gear 640. When the material moving motor 610 rotates, the second gear 640 is driven to rotate through the first gear 630, and then the rotating arm 650 is driven to rotate, and the first connecting rod 660 is driven to reciprocate. When the first connecting rod 660 reciprocates, its other end can drive the second connecting rod 670 to reciprocate. When the second connecting rod 670 reciprocates, it can drive the fixed axis to swing forward and backward. When the fixed axis swings forward and backward, it can drive the tooth frame 700 to reciprocate through the third connecting rod 680, so that the feed tooth can transport the dense mesh safety net once in one reciprocating formation, thereby realizing feeding, and when the material moving motor 610 rotates one circle, the feed tooth can reciprocate twice, thereby improving the feeding efficiency; the length of the first connecting rod 660 of the present invention can be adjusted, so as to adjust the feeding amount of each material moving to adapt to different needle distances.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0079] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A close-mesh safety net production device, comprising a feed dog assembly (400), Features: The feed dog assembly (400) comprises: An adjustment seat (460), the adjustment seat (460) having an upper and lower surface, and a through hollow portion (440) is provided between the upper and lower surfaces; A single tooth ring (430), wherein a fitting middle hole (431) is provided in the middle of the single tooth ring (430), and a groove (432) communicating with the fitting middle hole (431) is provided on one side of the single tooth ring (430), a rotating shaft (490) is provided on the upper surface of the adjustment seat (460), and a plurality of the single tooth rings (430) are fitted with the rotating shaft (490) and the fitting middle hole (431) through the groove (432), so that the plurality of the single tooth rings (430) form feeding teeth on the rotating shaft (490); The single tooth ring (430) can rotate independently on the rotating shaft (490) to change the effective mesh feeding area of ​​the single tooth ring (430).

2. A close-mesh safety net production equipment according to claim 1, Features: When the single tooth ring (430) is not provided with the groove (432), it is in the shape of an arc or a regular polygon.

3. A close-mesh safety net production equipment according to claim 1 or 2, Features: The four corners of the upper surface of the adjustment seat (460) are each provided with a mounting boss (420), the rotating shaft (490) is rotatably mounted on the mounting boss (420), and a knob (450) connected to the rotating shaft (490) is provided on the outer side of the mounting boss (420); A supporting bottom frame (410) is provided below the adjustment seat (460), an integral connecting piece (480) is provided on one side of the supporting bottom frame (410), and a tooth frame (700) is installed on the side of the connecting piece (480) away from the supporting bottom frame (410); An adjusting screw (470) is rotatably mounted on the upper surface of the supporting bottom frame (410), and the adjusting screw (470) is threadedly connected to the adjusting seat (460) to adjust the height of the adjusting seat (460) relative to the supporting bottom frame (410).

4. A close-mesh safety net production equipment according to claim 1, Features: The tooth frame (700) comprises a frame body (710) fixedly connected to the connecting plate (480), a tooth lifting connection part (720) arranged at one end of the frame body (710), and a tooth moving connection part (730) arranged at the other end of the frame body (710); It also includes a moving assembly (600), which includes a rotating arm (650) that can actively rotate, a first connecting rod (660) rotatably mounted on the other end of the rotating arm (650), and a second connecting rod (670) rotatably mounted on the other end of the first connecting rod (660), the other end of the second connecting rod (670) is fixed with a fixed axis, the spatial position of the fixed axis is limited to be immovable, and a third connecting rod (680) is also fixed on the fixed axis, and the other end of the third connecting rod (680) is rotatably connected to the tooth displacement connection part (730).

5. A close-mesh safety net production equipment according to claim 4, Features: The moving assembly (600) further comprises a material moving motor (610), a material moving shaft (620) being fixedly provided at the power output end of the material moving motor (610), a first gear (630) being installed at the other end of the material moving shaft (620), a second gear (640) being meshed below the first gear (630), and the second gear (640) being used to drive the rotating arm (650) to actively rotate.

6. A close-mesh safety net production equipment according to claim 4 or 5, Features: The first connecting rod (660) includes a first head (661) rotatably connected to the rotating arm (650), a second head (663) rotatably connected to the second connecting rod (670), and an adjusting portion (662) disposed between the first head (661) and the second head (663).

7. A close-mesh safety net production equipment according to claim 6, Features: One end of the adjusting portion (662) is rotatably connected to the second head portion (663) via a bearing, and the other end of the adjusting portion (662) is connected to the first head portion (661) via a thread.

8. A close-mesh safety net production device according to claim 6, Features: One end of the adjusting portion (662) is fixedly connected to the second head portion (663), and the other end of the adjusting portion (662) is inserted into the first head portion (661). The adjusting portion (662) is fixed in the first head portion (661) by a clamping bolt.

9. A close-mesh safety net production device according to claim 7 or 8, Features: It also includes a tooth-lifting assembly (500), which includes a tooth-lifting shaft (520), a connecting gear (510) fixed to one end of the tooth-lifting shaft (520), and a turntable (530) fixed to the other end of the tooth-lifting shaft (520), an eccentric wheel (540) being rotatably mounted on the other side of the turntable (530), and the upper side of the eccentric wheel (540) is rotatably connected to the tooth-lifting connection part (720).

10. A close-mesh safety net production device according to claim 1, Features: It also includes a mounting base (800), the upper surface of which is provided with a device body (100), and a removable upper cover (200) is installed on the mounting base (800), a removable pressure cover (300) is installed on the removable upper cover (200), and a receiving hole is opened on the removable pressure cover (300), and the single tooth ring (430) is located in the receiving hole.

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