Power clamping device of automatic net sleeving machine core

Abstract

The utility model discloses a power clamping device of an automatic net sleeving machine core. The power clamping device comprises a supporting seat, a track mechanism, two power roller assemblies and an opening and closing mechanism. The rail mechanism is mounted on the supporting seat; the power roller assemblies can be arranged on the two opposite sides of the net sleeving machine core. Each power roller assembly comprises a sliding base, a power roller and a first motor. The opening and closing mechanism comprises a transmission belt, belt wheels arranged at the two ends of the transmission belt and a second motor capable of driving the belt wheels, the belt wheels are rotationally connected with the supporting base, the sliding base of one power roller assembly is connected with the upper side of the transmission belt, and the sliding base of the other power roller assembly is connected with the lower side of the transmission belt. And the second motor has torque feedback and automatic brake functions. According to the power clamping device for the automatic net sleeving machine core, after the clamping force of the power roller on the net sleeving machine core reaches a preset value, the motor stops and brakes automatically, and the clamping force of the power roller on the net sleeving machine core is prevented from being too large or too small.

Description

Technical Field

[0001] The utility model relates to the technical field of fruit and vegetable netting, in particular to a power clamping device for an automatic netting machine core. Background Art

[0002] The existing netting machine for fruit and vegetable netting includes a core and a power clamping device, the power clamping device includes power rollers arranged on opposite sides of the core, and a power mechanism capable of driving the power rollers. When in use, the core is arranged vertically, the net sleeve is sleeved on the core, the power rollers clamp the core on the outside of the net sleeve, and the power mechanism drives the power rollers to rotate, so that the net sleeve moves downward to be netted.

[0003] The power roller of the existing power clamping device lacks adaptive function when clamping the movement. The clamping force of the power roller on the movement is prone to be too large or too small. When the clamping force is too large, the net is prone to get stuck. When the clamping force is too small, the power roller and the net sleeve are prone to slip. Utility Model Content

[0004] In order to solve the problem that the power roller of the existing power clamping device lacks an adaptive function when clamping a movement, the utility model proposes an automatic mesh-covering movement power clamping device. After the clamping force of the power roller on the mesh-covering movement reaches a preset value, the motor stops and automatically brakes to prevent the clamping force of the power roller on the mesh-covering movement from being too large or too small.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A power clamping device for an automatic net-covering movement comprises: a support seat, a track mechanism, two power roller assemblies and an opening and closing mechanism; the track mechanism is installed on the support seat; the power roller assemblies can be arranged on opposite sides of the net-covering movement, the power roller assembly comprises a sliding base, a power roller and a first motor, the sliding base is slidably connected to the track mechanism, the first motor is installed on the sliding base and connected to the power roller; the opening and closing mechanism comprises a transmission belt, pulleys arranged at both ends of the transmission belt, and a second motor capable of driving the pulley, the pulley is rotatably connected to the support seat, the sliding base of one power roller assembly is connected to the upper side of the transmission belt, the sliding base of the other power roller assembly is connected to the lower side of the transmission belt, and the second motor has torque feedback and automatic braking functions.

[0007] Through the above settings, first, the second motor can control the power roller to approach or move away from the net-casting movement without manual adjustment, which is convenient for putting the net-casting movement on the net; second, when the power roller squeezes the net-casting movement, the torque of the second motor increases. When the torque increases to the preset value, the second motor can automatically brake to make the clamping force of the power roller on the net-casting movement moderate; third, the second motor can drive the two power roller assemblies to move at the same time.

[0008] Specifically, the support seat can be installed in the net-laying machine by bolts; the track mechanism is used to guide the sliding base so that the two sliding bases can only move in a straight line, the power rollers of the two power roller assemblies are parallel to each other, and the sliding direction of the sliding base of the power roller assembly is perpendicular to the axis of the power roller; the net-laying machine core can refer to the existing net-laying machine. When the net is laid, the net sleeve is put on the net-laying machine core, and the net-laying machine core supports the inner wall of the net sleeve. At this time, the net sleeve is located between the net-laying machine core and the power rollers, and the power rollers of the two power roller assemblies are at the same distance from the net-laying machine core; the upper and lower sides of the transmission belt are parallel to the sliding direction of the sliding base. When the second motor drives the pulley, The upper and lower sides of the transmission belt move at equal speeds but in opposite directions. One of the power roller assemblies moves with the upper side of the transmission belt, and the other power roller assembly moves with the lower side of the transmission belt at the same speed. Finally, the power rollers of the two power roller assemblies contact the outer wall of the mesh sleeve at the same time and gradually clamp the mesh sleeve movement. The clamping force gradually increases, and the torque of the corresponding second motor increases. When the torque of the second motor increases to a preset value, the second motor stops and automatically brakes to lock the clamping force. Among them, the second motor with automatic braking and torque feedback functions can be purchased from the market, and the preset value is set by technical personnel in this field according to actual needs.

[0009] Furthermore, the track mechanism includes: a guide rod and a connecting piece; the guide rod is parallel to the transmission belt, passes through the sliding base and is slidably connected to the sliding base; the end of the guide rod is installed on the support seat through the connecting piece.

[0010] Through the above arrangement, firstly, the connecting member plays a connecting role; secondly, the connecting member plays a limiting role on the sliding base.

[0011] In the present application, there are two guide rods, which are arranged at both ends of the sliding base, so that the two ends of the sliding base can slide stably; the connecting piece can be installed on the support base by bolts, and the guide rod is an optical axis structure, so that the sliding base can move stably along the axial direction of the guide rod; the connecting piece can contact the sliding base to limit the maximum distance of the sliding base to move outward.

[0012] Furthermore, a one-way bearing is arranged between the sliding base and the power roller.

[0013] Through the above arrangement, the power roller can only rotate in one direction, thereby preventing the power roller from reversing and causing the mesh sleeve to rebound.

[0014] In the present application, the one-way bearing can be purchased from the market. The one-way bearing does not restrict the rotation of the power roller but drives the mesh sleeve to move downward. When the power roller stops, the one-way bearing can prevent the power roller from reversing, thereby preventing the mesh sleeve from rebounding upward.

[0015] Furthermore, there are two transmission belts and they are arranged on opposite sides of the power roller assembly. The opening and closing mechanism also includes a connecting rod, and the pulley of one transmission belt is connected to the pulley of the other transmission belt through the connecting rod; the two ends of the sliding base of one power roller assembly are connected to the upper side of the transmission belt, and the two ends of the sliding base of the other power roller assembly are connected to the lower side of the transmission belt.

[0016] Through the above arrangement, first, the second motor drives the two ends of the sliding base to move synchronously through two transmission belts, thereby improving the movement stability of the sliding base; second, when the power roller clamps the net-sleeving movement, the two ends of the sliding base are subjected to the pulling force of the transmission belt, thereby making the force of the entire power roller assembly more reasonable.

[0017] Specifically, when the power roller clamps the mesh-wrapping movement, on the one hand, the mesh-wrapping movement applies pressure to the middle of the power roller, and the above pressure is basically located in the middle of the power roller assembly; on the other hand, the transmission belt applies tension to both ends of the sliding base, and the above tension is basically located at both ends of the power roller assembly. The resultant force of the tension and pressure is zero, and no additional bending moment is generated, thereby improving the stability of the power roller assembly.

[0018] Furthermore, the sliding base includes: a support plate, a first mounting bracket, a second mounting bracket, a slider, and a clamp; the first motor is mounted on the upper side of the support plate; the first mounting bracket and the second mounting bracket are fixedly connected to the upper side of the support plate, the power roller is rotatably connected between the first mounting bracket and the second mounting bracket, and the one-way bearing is installed between the first mounting bracket and the power roller; the slider is fixedly connected to both ends of the support plate, the guide rod passes through the slider and is slidably connected to the slider; the clamp is arranged at both ends of the support plate and clamps the transmission belt.

[0019] Through the above arrangement, the first mounting bracket and the second mounting bracket support the power roller; the clamp facilitates the connection between the sliding base and the transmission belt.

[0020] Furthermore, the first motor is transmission-connected to the power roller via a coupling.

[0021] Through the above arrangement, the first motor and the power roller move synchronously.

[0022] Furthermore, the clamp includes: an upper clamp block, a lower clamp block and a locking piece; the upper clamp block is detachably connected to the end of the support plate, and the upper clamp block contacts the upper side of the transmission belt; the lower clamp block is arranged on the lower side of the upper clamp block; the locking piece passes through the lower clamp block and is threadedly connected to the upper clamp block, and the locking piece is tightened, so that the upper clamp block and the lower clamp block clamp the transmission belt.

[0023] In the present application, the upper clamp block is detachably connected to the support plate by bolts, and the lower side of the upper clamp block is provided with texture to increase the friction between the clamp and the transmission belt; the locking piece can be set as a bolt, when the locking piece is tightened, the upper clamp block and the lower clamp block clamp the transmission belt, and when the locking piece is loosened, the upper clamp block and the lower clamp block loosen the transmission belt.

[0024] Furthermore, two limit blocks are fixedly connected to the guide rod, and the limit blocks are located between the two power roller assemblies. When one power roller assembly contacts the limit block, the other power roller assembly contacts the other limit block.

[0025] Through the above arrangement, the minimum distance between the power roller assemblies is limited to prevent the power roller assemblies from colliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of a power clamping device according to an embodiment.

[0027] Figure 2 Schematic diagram of the track mechanism of the embodiment.

[0028] Figure 3 Schematic diagram of the opening and closing mechanism of the embodiment.

[0029] Figure 4 Schematic diagram of a powered roller assembly according to an embodiment. DETAILED DESCRIPTION

[0030] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0031] See also Figures 1 to 4 , a power clamping device for an automatic net-covering movement, comprising: a support seat 2, a track mechanism 3, two power roller assemblies 4 and an opening and closing mechanism 5; the track mechanism 3 is installed on the support seat 2; the power roller assembly 4 can be arranged on opposite sides of the net-covering movement (not shown in the figure), the power roller assembly 4 comprises a sliding base 41, a power roller 42 and a first motor 43, the sliding base 41 is slidably connected to the track mechanism 3, the first motor 43 is installed on the sliding base 41 and is connected to the power roller 42; the opening and closing mechanism 5 comprises a transmission belt 51, pulleys 52 arranged at both ends of the transmission belt 51, and a second motor 53 that can drive the pulley 52, the pulley 52 is rotatably connected to the support seat 2, the sliding base 41 of one power roller assembly 4 is connected to the upper side of the transmission belt 51, and the sliding base 41 of the other power roller assembly 4 is connected to the lower side of the transmission belt 51, and the second motor 53 has torque feedback and automatic braking functions.

[0032] Through the above settings, first, the second motor 53 can control the power roller 42 to approach or move away from the net-casting movement without manual adjustment, which is convenient for putting the net-casting movement on the net; second, when the power roller 42 squeezes the net-casting movement, the torque of the second motor 53 increases. When the torque reaches the preset value, the second motor 53 can automatically brake to make the clamping force of the power roller 42 on the net-casting movement moderate; third, the second motor 53 can drive the two power roller assemblies 4 to move at the same time.

[0033] Specifically, the support seat 2 can be installed in the net-wrapping machine by bolts; the track mechanism 3 is used to guide the sliding base 41 so that the two sliding bases 41 can only move in a straight line, and the power rollers 42 of the two power roller assemblies 4 are parallel to each other, and the sliding direction of the sliding base 41 of the power roller assembly 4 is perpendicular to the axis of the power roller 42; the net-wrapping movement can refer to the existing net-wrapping machine. When the net is wrapped, the net sleeve is wrapped on the net-wrapping movement, and the net-wrapping movement supports the inner wall of the net sleeve. At this time, the net sleeve is located between the net-wrapping movement and the power roller 42, and the power rollers 42 of the two power roller assemblies 4 are at the same distance from the net-wrapping movement; the upper and lower sides of the transmission belt 51 are parallel to the sliding direction of the sliding base 41, and the second motor 53 drives the pulley 52, the upper and lower sides of the transmission belt 51 move at the same speed but in opposite directions. One of the power roller assemblies 4 moves with the upper side of the transmission belt 51, and the other power roller assembly 4 moves with the lower side of the transmission belt 51 at the same speed. Finally, the power rollers 42 of the two power roller assemblies 4 contact the outer wall of the mesh sleeve at the same time and gradually clamp the mesh sleeve movement. The clamping force gradually increases, and the torque of the corresponding second motor 53 increases. When the torque of the second motor 53 increases to a preset value, the second motor 53 stops and automatically brakes to lock the clamping force. Among them, the second motor 53 with automatic braking and torque feedback functions can be purchased from the market, and the preset value is set by technicians in this field according to actual needs.

[0034] As an implementation method, the track mechanism 3 includes: a guide rod 31 and a connecting piece 32; the guide rod 31 is parallel to the transmission belt 51, the guide rod 31 passes through the sliding base 41 and is slidably connected to the sliding base 41; the end of the guide rod 31 is installed on the support base 2 through the connecting piece 32.

[0035] Through the above arrangement, firstly, the connecting member 32 plays a connecting role; secondly, the connecting member 32 plays a limiting role on the sliding base 41 .

[0036] In the present application, there are two guide rods 31, which are arranged at both ends of the sliding base 41, so that the two ends of the sliding base 41 can slide stably; the connecting member 32 can be installed on the support base 2 by bolts, and the guide rod 31 is an optical axis structure, so that the sliding base 41 can move stably along the axial direction of the guide rod 31; the connecting member 32 can contact the sliding base 41 to limit the maximum distance of the sliding base 41 to move outward.

[0037] As an implementation method, a one-way bearing 6 is provided between the sliding base 41 and the power roller 42 .

[0038] Through the above arrangement, the power roller 42 can only rotate in one direction, thereby preventing the power roller 42 from reversing and causing the mesh sleeve to rebound.

[0039] In the present application, the one-way bearing 6 can be purchased from the market. The one-way bearing 6 does not limit the rotation of the power roller 42 and drives the mesh sleeve to move downward; when the power roller 42 stops, the one-way bearing 6 can prevent the power roller 42 from reversing, thereby preventing the mesh sleeve from rebounding upward.

[0040] As an implementation method, there are two transmission belts 51 and they are arranged on opposite sides of the power roller assembly 4. The opening and closing mechanism 5 also includes a connecting rod 54, and the pulley 52 of one transmission belt 51 is transmission-connected to the pulley 52 of the other transmission belt 51 through the connecting rod; the two ends of the sliding base 41 of one power roller assembly 4 are connected to the upper side of the transmission belt 51, and the two ends of the sliding base 41 of the other power roller assembly 4 are connected to the lower side of the transmission belt 51.

[0041] Through the above arrangement, first, the second motor 53 drives the two ends of the sliding base 41 to move synchronously through the two transmission belts 51, thereby improving the movement stability of the sliding base 41; second, when the power roller 42 clamps the net-sleeving movement, the two ends of the sliding base 41 are subjected to the pulling force of the transmission belt 51, thereby making the force of the entire power roller assembly 4 more reasonable.

[0042] Specifically, when the power roller 42 clamps the mesh-wrapping movement, on the one hand, the mesh-wrapping movement applies pressure to the middle of the power roller 42, and the above pressure is basically located in the middle of the power roller assembly 4; on the other hand, the transmission belt 51 applies tension to both ends of the sliding base 41, and the above tension is basically located at both ends of the power roller assembly 4. The resultant force of the tension and pressure is zero, and no additional bending moment is generated, thereby improving the stability of the power roller assembly 4.

[0043] As an implementation method, the sliding base 41 includes: a support plate 411, a first mounting bracket 412, a second mounting bracket 413, a slider 414, and a clamp 418; the first motor 43 is installed on the upper side of the support plate 411; the first mounting bracket 412 and the second mounting bracket 413 are fixedly connected to the upper side of the support plate 411, the power roller 42 is rotatably connected between the first mounting bracket 412 and the second mounting bracket 413, and the one-way bearing 6 is installed between the first mounting bracket 412 and the power roller 42; the slider 414 is fixedly connected at both ends of the support plate 411, and the guide rod 31 passes through the slider 414 and is slidably connected to the slider 414; the clamp is arranged at both ends of the support plate 411 and clamps the transmission belt 51.

[0044] Through the above arrangement, the first mounting bracket 412 and the second mounting bracket 413 support the power roller 42 ; the clamp facilitates the connection between the sliding base 41 and the transmission belt 51 .

[0045] As an implementation method, the first motor 43 is transmission-connected to the power roller 42 via a coupling.

[0046] Through the above arrangement, the first motor 43 and the power roller 42 move synchronously.

[0047] As an implementation method, the clamp includes: an upper clamp block 415, a lower clamp block 416 and a locking piece 417; the upper clamp block 415 is detachably connected to the end of the support plate 411, and the upper clamp block 415 contacts the upper side of the transmission belt 51; the lower clamp block 416 is arranged on the lower side of the upper clamp block 415; the locking piece 417 passes through the lower clamp block 416 and is threadedly connected to the upper clamp block 415, and the locking piece 417 is tightened, so that the upper clamp block 415 and the lower clamp block clamp the transmission belt 51.

[0048] In the present application, the upper clamp block 415 is detachably connected to the support plate 411 by bolts, and the lower side of the upper clamp block 415 is provided with textures to increase the friction between the clamp and the transmission belt 51; the locking piece 417 can be set as a bolt, when the locking piece 417 is tightened, the upper clamp block 415 and the lower clamp block 416 clamp the transmission belt 51, and when the locking piece 417 is loosened, the upper clamp block 415 and the lower clamp block 416 loosen the transmission belt 51.

[0049] As an implementation method, two limit blocks 7 are fixedly connected to the guide rod 31 , and the limit block 7 is located between the two power roller assemblies 4 . When one power roller assembly 4 contacts the limit block 7 , the other power roller assembly 4 contacts the other limit block 7 .

[0050] Through the above arrangement, the minimum distance between the power roller assemblies 4 is defined to prevent the power roller assemblies 4 from colliding.

[0051] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A power clamping device for an automatic mesh-making machine core, characterized in that: include: Support seat; A track mechanism, wherein the track mechanism is installed on the support seat; Two power roller assemblies, the power roller assemblies can be arranged on opposite sides of the mesh-covering machine core, the power roller assemblies include a sliding base, a power roller and a first motor, the sliding base is slidably connected to the track mechanism, the first motor is installed on the sliding base and connected to the power roller; An opening and closing mechanism includes a transmission belt, pulleys arranged at both ends of the transmission belt, and a second motor capable of driving the pulleys, wherein the pulleys are rotatably connected to the support seat, wherein a sliding base of one of the power roller assemblies is connected to the upper side of the transmission belt, and a sliding base of another power roller assembly is connected to the lower side of the transmission belt, and the second motor has torque feedback and automatic braking functions.

2. The automatic mesh-making machine core power clamping device according to claim 1 is characterized in that: The track mechanism comprises: A guide rod, wherein the guide rod is parallel to the transmission belt, and the guide rod passes through the sliding base and is slidably connected to the sliding base; A connecting piece, through which the end of the guide rod is mounted on the support seat.

3. The automatic mesh-making machine core power clamping device according to claim 2 is characterized in that: Two limit blocks are fixedly connected to the guide rod, and the limit block is located between the two power roller assemblies. When one of the power roller assemblies contacts the limit block, the other power roller assembly contacts the other limit block.

4. The automatic mesh-making machine core power clamping device according to claim 2 is characterized in that: A one-way bearing is arranged between the sliding base and the power roller.

5. The automatic mesh-making machine core power clamping device according to claim 1 is characterized in that: The number of the transmission belts is two and they are arranged on opposite sides of the power roller assembly, and the opening and closing mechanism further includes a connecting rod, wherein the pulley of one of the transmission belts is connected to the pulley of the other transmission belt through the connecting rod; Both ends of the sliding base of one of the power roller assemblies are connected to the upper side of the transmission belt, and both ends of the sliding base of the other power roller assembly are connected to the lower side of the transmission belt.

6. The automatic mesh-making machine core power clamping device according to claim 4 is characterized in that: The sliding base comprises: a support plate, wherein the first motor is mounted on an upper side of the support plate; a first mounting bracket and a second mounting bracket, wherein the first mounting bracket and the second mounting bracket are fixedly connected to the upper side of the support plate, the power roller is rotatably connected between the first mounting bracket and the second mounting bracket, and the one-way bearing is installed between the first mounting bracket and the power roller; Slide blocks, the slide blocks are fixedly connected to both ends of the support plate, and the guide rod passes through the slide blocks and is slidably connected to the slide blocks; A clamp is arranged at two ends of the support plate and clamps the transmission belt.

7. The automatic mesh-making machine core power clamping device according to claim 6 is characterized in that: The fixture comprises: An upper clamping block, the upper clamping block is detachably connected to the end of the support plate, and the upper clamping block contacts the upper side of the transmission belt; A lower clamping block, the lower clamping block being arranged on the lower side of the upper clamping block; A locking piece passes through the lower clamping block and is threadedly connected to the upper clamping block. When the locking piece is tightened, the upper clamping block and the lower clamping block clamp the transmission belt.

8. The automatic mesh-making machine core power clamping device according to claim 1 is characterized in that: The first motor is drivingly connected to the power roller via a coupling.

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