Chain plate weighing scale

Abstract

The present invention relates to the technical field of weighing scales, and discloses a chain plate type weighing scale, comprising a material transport frame, on which a chain assembly symmetrically distributed front and back is arranged, and the chain plate assembly rotates to realize the transportation of materials; the chain plate assembly comprises a plurality of groups of material transport chain plates stacked end to end in an alternating manner and material transport wing plates fixed to the upper ends of the material transport chain plates symmetrically fixed front and back, and the second curved plate is connected to the bottom of the corresponding first curved plate through an adjustable blocking mechanism; the left and right adjacent material transport wing plates of the present invention are stacked in an alternating manner to prevent materials from leaking from the front and rear sides of the material transport chain plates; the material transport chain plates are tilted as a whole, and the second curved plate is connected to the bottom of the corresponding first curved plate through an adjustable blocking mechanism, and the adjustable blocking mechanism automatically adjusts its height as the chain plate assembly rotates, so that the adjustable blocking mechanism blocks the gap between the corresponding first curved plate and the second curved plate, thereby preventing materials from leaking out.

Description

Technical Field

[0001] The invention relates to the technical field of weighing scales, in particular to a chain plate type weighing scale. Background Art

[0002] Chain plate weighing scale, usually referred to as chain plate scale, is a controller that transmits the material on the chain plate in terms of weight and signal. When the material is loaded on the conveying chain plate of the chain plate scale, the conveying chain plate transports the material to the scale body and detects the weight of the material on the chain plate through the weighing sensor. The conveying chain plate is one of the core components of the chain plate scale. The conveying chain plate is usually made of special materials, such as high manganese steel plates, to ensure that it is durable and not easy to deform. A certain gap is often required between the chain plates to reduce the friction between the chain plates when transporting materials. Such a setting cannot avoid material leakage during operation, and with a certain degree of shaking when the conveying chain plate rotates, the gap between the chain plates will be larger and smaller, especially when the conveying chain plate rotates to the position of the driving sprocket or the driven sprocket, the distance between the chain plates increases, causing the material to leak from the gap between the chain plates. For this reason, we have launched a chain plate weighing scale. Summary of the invention

[0003] The object of the present invention is to provide a chain plate type weighing scale to solve the problems raised in the above background technology.

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

[0005] A chain plate type weighing scale comprises a material transport frame, on which a chain assembly symmetrically distributed front and back is provided, on which a chain plate assembly is mounted, and the chain assembly is driven by a driving mechanism on the material transport frame, so that the chain plate assembly rotates to realize the transportation of materials;

[0006] The chain plate assembly includes a plurality of material transport chain plates stacked end to end and material transport wing plates fixed to the upper ends of the material transport chain plates symmetrically front and back, and adjacent material transport wing plates are stacked in a staggered manner to prevent materials from leaking from the front and rear sides of the chain plate assembly;

[0007] The conveying chain plate is arranged in an inclined manner as a whole, and comprises a flat plate fixed on the chain assembly and a first curved plate and a second curved plate integrally formed at both ends of the flat plate, and the second curved plate is connected to the lower side of the corresponding first curved plate through an adjustable blocking mechanism;

[0008] The adjustable blocking mechanism automatically adjusts its height as the chain plate assembly rotates, so that the adjustable blocking mechanism blocks the corresponding gap between the first arc plate and the second arc plate, thereby preventing material from leaking out.

[0009] Preferably, the material transport rack comprises two sets of parallel wall panels arranged in front and rear and legs arranged at the bottom of the wall panels;

[0010] The driving mechanism includes a bearing seat installed on one side of the upper end of the wall panel, a driving shaft connected between the front and rear bearing seats, a driving sprocket fixed at both ends of the driving shaft, a driven shaft connected to the other side of the upper end of the wall panel through a tensioning assembly, and a driven sprocket fixed at both ends of the driven shaft;

[0011] The chain assembly is connected between the corresponding driving sprocket and the driven sprocket.

[0012] Preferably, the active rotating shaft is driven by a motor;

[0013] The tensioning assembly includes a limit frame fixed to the upper end of the wall panel and a tensioning screw threadedly connected to the end of the limit frame. The two ends of the driven shaft extend into the corresponding limit frames, and the tensioning screw extends into the limit frame and is threadedly connected to the driven shaft.

[0014] Preferably, the chain assembly includes a chain connected between the corresponding driving sprocket and the driven sprocket and a fixed plate symmetrically connected front and back on the outer side of the chain. The plate is fixed to the corresponding fixed plate by screws, and the screws pass through the reserved holes on the plate and are screwed to the corresponding fixed plate.

[0015] Preferably, the adjustable blocking mechanism comprises a limit box body fixed at the middle of the inner side of the second arc-shaped plate, a sealing plate fixed at the bottom of the limit box body, a lifting block slidably connected to the limit groove inside the limit box body, a spring connected between the lifting block and the sealing plate, an arc-shaped blocking plate fixed after the lifting block extends out of the limit groove, and a foldable rubber corrugated plate connected to one end of the arc-shaped blocking plate close to the first arc-shaped plate;

[0016] Both ends of the arc-shaped blocking plate and the foldable rubber corrugated plate are closely attached to the inner wall of the material transport wing plate, and the foldable rubber corrugated plate is connected to the convex part on the outer side of the corresponding second arc-shaped plate.

[0017] Preferably, a sliding protrusion is provided on the side of the lifting block close to one end of the sealing plate, and the sliding protrusion is slidably connected to the sliding groove of the side wall of the limiting groove.

[0018] Preferably, the inner concave portion on the inner side of the arc-shaped sealing plate has the same curvature as the convex portion on the outer side of the corresponding second arc-shaped plate, and the convex portion on the outer side of the arc-shaped sealing plate has the same curvature as the inner concave portion on the inner side of the corresponding first arc-shaped plate.

[0019] Preferably, the lower end of the flat plate is provided with brackets symmetrically distributed front and back, and the brackets are movably connected to weighing rollers through pins;

[0020] The upper ends of the front and rear wall panels are provided with an I-shaped frame, and the upper end of the I-shaped frame is provided with guide rails symmetrically distributed front and back. The guide rails are used to support the bottom of the weighing roller, and the weighing roller is also provided with an anti-slip ring located on the inner wall of the guide rail.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the left and right adjacent material transport wing plates of the present invention are staggered and stacked to prevent materials from leaking from the front and rear sides of the material transport chain plate; the material transport chain plate is tilted as a whole, and the second arc plate is connected to the bottom of the corresponding first arc plate through an adjustable sealing mechanism. The adjustable sealing mechanism automatically adjusts its height as the chain plate assembly rotates, so that the adjustable sealing mechanism can seal the gap between the corresponding first arc plate and the second arc plate, thereby preventing materials from leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention as a whole;

[0023] Figure 2 It is a schematic diagram of the exploded structure of the connection between the material transport chain plate and the adjustable blocking mechanism of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the connection between the material transport chain plate, the material transport wing plate and the weighing roller of the present invention;

[0025] Figure 4 For the present invention Figure 3 A schematic diagram of the front view structure of

[0026] Figure 5 For the present invention Figure 3 A schematic diagram of a top view structure;

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the adjustable blocking mechanism of the present invention;

[0028] Figure 7 For the present invention Figure 2 Schematic diagram of the three-dimensional structure after overall assembly;

[0029] Figure 8 For the present invention Figure 7 Schematic diagram of the cross-sectional structure at AA in the middle;

[0030] Fig. 9 For the present invention Figure 8 The enlarged structural diagram at B in the middle;

[0031] Fig.10 It is a second three-dimensional structural schematic diagram of the present invention as a whole;

[0032] Fig.11 It is a schematic diagram of the front view structure of a part of the material transport chain plate of the present invention;

[0033] Fig.12 For the present invention Fig.11 Enlarged structural diagram at point C in the middle.

[0034] In the figure: 1. wall panel; 2. support leg; 3. motor; 4. bearing seat; 5. limit frame; 6. driven shaft; 7. tensioning screw; 8. guide rail; 9. material transport chain plate; 91. flat plate; 92. first arc plate; 93. second arc plate; 94. reserved hole; 95. limit groove; 96. slide groove; 97. limit box body; 98. sealing plate; 99. lifting block; 100. spring; 101. arc-shaped sealing plate; 102. foldable rubber corrugated plate; 103. sliding protrusion; 10. material transport wing plate; 11. weighing roller; 111. anti-slip ring; 112. bracket; 113. pin; 12. fixing plate; 13. chain; 14. I-shaped frame; 15. screw; 16. driving shaft; 17. driving sprocket; 18. driven sprocket. DETAILED DESCRIPTION

[0035] 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.

[0036] Example:

[0037] See also Figure 1-12 , the present invention provides a technical solution:

[0038] A chain plate type weighing scale, comprising a material transport frame, the material transport frame comprising two sets of parallel wall panels 1 arranged in front and back, and legs 2 arranged at the bottom of the wall panels 1;

[0039] An I-shaped frame 14 is provided at the upper end of the front and rear wall panels 1, and a guide rail 8 symmetrically distributed front and rear is provided at the upper end of the I-shaped frame 14. A weighing sensor is provided between the I-shaped frame 14 and the guide rail 8. The model of the weighing sensor is HLC-550kg, HLC-220kg of HBM of Germany, SQB-500kg, SQB-200kg sensor of Ningbo Keli or other models that meet the use requirements.

[0040] The weighing sensor is electrically connected to the PLC built into the display screen, and the weight data is displayed in real time on the display screen.

[0041] The lower end of the flat plate 91 of the material transport chain plate 9 is provided with a bracket 112 symmetrically distributed front and rear, and the bracket 112 is movably connected to the weighing roller 11 through a pin shaft 113;

[0042] The guide rail 8 is used to support the bottom of the weighing roller 11, and the left and right ends of the guide rail 8 are arranged to be tilted downward, so that when the chain assembly drives the chain plate assembly to rotate, the weighing roller 11 on the chain plate assembly can smoothly slide to the upper end of the guide rail 8 and slide down from the guide rail 8;

[0043] The weighing roller 11 is also provided with an anti-slip ring 111 located on the inner wall of the guide rail 8 , so that the weighing roller 11 can be prevented from slipping off the guide rail 8 .

[0044] The material transport rack is provided with chain assemblies symmetrically distributed front and back, and a chain plate assembly is installed on the chain assembly. The chain assembly is driven by a driving mechanism on the material transport rack, so that the chain plate assembly rotates to realize the transportation of materials;

[0045] The chain assembly includes a chain 13 connected between the corresponding driving sprocket 17 and the driven sprocket 18 and a fixing plate 12 symmetrically connected to the front and rear outer sides of the chain 13. The flat plate 91 is fixed to the corresponding fixing plate 12 by screws 15. The screws 15 pass through the reserved holes 94 on the flat plate 91 and are screwed to the corresponding fixing plate 12.

[0046] The driving mechanism includes a bearing seat 4 installed on one side of the upper end of the wall panel 1, a driving shaft 16 connected between the front and rear sets of bearing seats 4, a driving sprocket 17 fixed at both ends of the driving shaft 16, a driven shaft 6 connected to the other side of the upper end of the wall panel 1 through a tensioning assembly, and a driven sprocket 18 fixed at both ends of the driven shaft 6;

[0047] The chain assembly is connected between the corresponding driving sprocket 17 and the driven sprocket 18;

[0048] The bearing seat 4 is provided with a bearing sleeved on the driving shaft 16;

[0049] The active rotating shaft 16 is driven by the motor 3;

[0050] The model of the motor 3 is a SEW SA-87 motor, a RA-97 motor, a KA-107 motor, a Boneng motor or other models that meet the use requirements.

[0051] The motor 3 is controlled by a PLC, and the output end of the motor 3 is connected to the front end of the driving shaft 16 through a reducer. When the motor 3 works, the driving sprocket 17 is driven to rotate through the driving shaft 16, thereby causing the chain assembly between the driving sprocket 17 and the driven sprocket 18 distributed on the left and right to rotate, and then the chain assembly drives the chain plate assembly to rotate.

[0052] Since the process location where the chain plate type metering scale is modified and the chain plate assembly is used is a heavy load occasion, it is necessary to consider the driving force of the active sprocket 17 and the driven sprocket 18, and also to pay attention to the stability of the chain plate type metering scale and the chain plate assembly during operation to eliminate the multilateral effect to the greatest extent. Therefore, the diameter of the active sprocket 17 and the driven sprocket 18 shall not be less than 500mm, and the number of teeth shall not be less than 12 teeth.

[0053] The tensioning assembly includes a limit frame 5 fixed to the upper end of the wall panel 1 and a tensioning screw 7 threadedly connected to the end of the limit frame 5. Both ends of the driven shaft 6 extend into the corresponding limit frame 5, and the tensioning screw 7 extends into the limit frame 5 and is threadedly connected to the driven shaft 6.

[0054] A transverse slot is provided in the limit frame 5, and both ends of the driven shaft 6 extend into the transverse slot. The upper and lower widths of the transverse slot are consistent with the outer diameters of both ends of the driven shaft 6.

[0055] By locking the tensioning screw 7, the driven shaft 6 can be moved in the transverse slot, thereby increasing the distance between the driven shaft 6 and the driving shaft 16, thereby achieving tensioning of the chain 13 and the chain plate assembly.

[0056] like Figure 1 , 2 As shown in , 3, 5, 7 and 10, the chain plate assembly includes a plurality of groups of material transport chain plates 9 stacked end to end and material transport wing plates 10 fixed to the upper ends of the material transport chain plates 9 and symmetrically fixed front to back;

[0057] Adjacent material transport wing plates 10 are stacked in an alternating manner (ie, the left end of the right material transport wing plate 10 is closely attached to the inner side of the right end of the left material transport wing plate 10) to prevent materials from leaking out from the front and rear sides of the chain plate assembly.

[0058] like Figure 4 As shown, the transport chain plate 9 is tilted with the left side lower and the right side higher. The transport chain plate 9 includes a flat plate 91 fixed on the chain assembly and a first curved plate 92 and a second curved plate 93 integrally formed at both ends of the flat plate 91.

[0059] like Fig.11 and 12 As shown, the second arc-shaped plate 93 is connected to the lower part of the corresponding first arc-shaped plate 92 through an adjustable blocking mechanism.

[0060] The adjustable blocking mechanism includes a limit box 97 fixed at the middle of the inner side of the second arc-shaped plate 93, a sealing plate 98 fixed at the bottom of the limit box 97, a lifting block 99 slidably connected to the limit groove 95 inside the limit box 97, a spring 100 connected between the lifting block 99 and the sealing plate 98, an arc-shaped blocking plate 101 fixed after the lifting block 99 extends out of the limit groove 95, and a foldable rubber corrugated plate 102 connected to one end of the arc-shaped blocking plate 101 close to the first arc-shaped plate 92;

[0061] The lifting block 99 is fixed to one end of the lifting block 99 extending out of the limit slot 95 by bolts;

[0062] Both ends of the arc-shaped blocking plate 101 and the foldable rubber corrugated plate 102 are closely attached to the inner wall of the material transport wing plate 10 , and the foldable rubber corrugated plate 102 is connected to the corresponding raised portion on the outer side of the second arc-shaped plate 93 .

[0063] A sliding protrusion 103 is provided on the side of the lifting block 99 near one end of the sealing plate 98, and the sliding protrusion 103 is slidably connected to the sliding groove 96 on the side wall of the limiting groove 95. Such a setting can further realize the lifting block 99 to move up and down smoothly along the limiting groove 95;

[0064] The inner end of the slide groove 96 extends to the inner side of the limit groove 95. After the sealing plate 98 and the arc-shaped blocking plate 101 are removed, the lifting block 99 can be taken out, thereby further realizing the rapid installation and removal of the entire adjustable blocking mechanism.

[0065] The inner concave portion of the arc-shaped sealing plate 101 has the same curvature as the corresponding convex portion of the outer side of the second arc-shaped plate 93 , and the outer convex portion of the arc-shaped sealing plate 101 has the same curvature as the corresponding inner concave portion of the inner side of the first arc-shaped plate 92 .

[0066] The adjustable blocking mechanism automatically adjusts its height as the chain plate assembly rotates, so that the adjustable blocking mechanism blocks the gap between the corresponding first arc plate 92 and the second arc plate 93 to prevent material leakage.

[0067] Specifically, when in use, the PLC controls the motor 3 to work, and drives the driving sprocket 17 to rotate through the driving shaft 16, so that the chain assembly between the driving sprocket 17 and the driven sprocket 18 distributed on the left and right rotates, and then the chain assembly drives the chain plate assembly to rotate, and the chain plate assembly rotates to realize the transportation of materials;

[0068] like Fig.12 As shown, when the transport chain plate 9 rotates to the horizontal position (that is, the transport chain plate 9 rotates away from the driving sprocket 17 or the driven sprocket 18), the gap between the corresponding first arc plate 92 and the second arc plate 93 is reduced. At this time, under the squeezing of the arc blocking plate 101 by the corresponding first arc plate 92, the lifting block 99 overcomes the elastic force of the spring 100 and retracts into the limiting groove 95 until the inner concave portion of the inner side of the arc blocking plate 101 is tightly attached to the convex portion of the outer side of the corresponding second arc plate 93. At the same time, the convex portion of the outer side of the arc blocking plate 101 is still tightly attached to the inner concave portion of the inner side of the first arc plate 92. The foldable rubber corrugated plate 102 is completely folded up under the pressure of the arc blocking plate 101, so that the arc blocking plate 101 and the foldable rubber corrugated plate 102 can achieve the sealing of the gap between the first arc plate 92 and the second arc plate 93.

[0069] like Fig.12 As shown, when the transport chain plate 9 rotates to the driving sprocket 17 or the driven sprocket 18, the gap between the corresponding first arc plate 92 and the second arc plate 93 increases. At this time, under the elastic force of the spring 100 on the lifting block 99, the lifting block 99 lifts the arc-shaped blocking plate 101, so that the convex part on the outer side of the arc-shaped blocking plate 101 is closely attached to the inner concave part on the inner side of the corresponding first arc-shaped plate 92. At the same time, the foldable rubber corrugated plate 102 is opened under the tension of the arc-shaped blocking plate 101, so that the arc-shaped blocking plate 101 and the foldable rubber corrugated plate 102 can achieve the blocking of the gap between the first arc-shaped plate 92 and the second arc-shaped plate 93.

[0070] The adjustable blocking mechanism blocks the gap between the corresponding first arc plate 92 and the second arc plate 93, thereby preventing the material from leaking out;

[0071] At the same time, the adjacent material transport wings 10 are arranged in a staggered stack to prevent the material from leaking out from the front and rear sides of the chain plate assembly.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chain plate type weighing scale, comprising a material transport frame, characterized in that: The material transport rack is provided with chain assemblies symmetrically distributed front and back, and a chain plate assembly is installed on the chain assembly. The chain assembly is driven by a driving mechanism on the material transport rack, so that the chain plate assembly rotates to realize the transportation of materials; The chain plate assembly includes a plurality of material transport chain plates stacked end to end and material transport wing plates fixed to the upper ends of the material transport chain plates symmetrically front and back, and adjacent material transport wing plates are stacked in a staggered manner to prevent materials from leaking from the front and rear sides of the chain plate assembly; The conveying chain plate is arranged in an inclined manner as a whole, and comprises a flat plate fixed on the chain assembly and a first curved plate and a second curved plate integrally formed at both ends of the flat plate, and the second curved plate is connected to the lower side of the corresponding first curved plate through an adjustable blocking mechanism; The adjustable blocking mechanism automatically adjusts its height as the chain plate assembly rotates, so that the adjustable blocking mechanism blocks the gap between the corresponding first arc plate and the second arc plate, thereby preventing material from leaking out; The adjustable blocking mechanism comprises a limit box body fixed at the middle of the inner side of the second arc-shaped plate, a sealing plate fixed at the bottom of the limit box body, a lifting block slidably connected to the limit groove inside the limit box body, a spring connected between the lifting block and the sealing plate, an arc-shaped blocking plate fixed after the lifting block extends out of the limit groove, and a foldable rubber corrugated plate connected to one end of the arc-shaped blocking plate close to the first arc-shaped plate; Both ends of the arc-shaped blocking plate and the foldable rubber corrugated plate are closely attached to the inner wall of the material transport wing plate, and the foldable rubber corrugated plate is connected to the convex part on the outer side of the corresponding second arc-shaped plate.

2. A chain plate type weighing scale according to claim 1, characterized in that: The material transport rack comprises two sets of parallel wall panels at the front and rear and legs arranged at the bottom of the wall panels; The driving mechanism includes a bearing seat installed on one side of the upper end of the wall panel, a driving shaft connected between the front and rear bearing seats, a driving sprocket fixed at both ends of the driving shaft, a driven shaft connected to the other side of the upper end of the wall panel through a tensioning assembly, and a driven sprocket fixed at both ends of the driven shaft; The chain assembly is connected between the corresponding driving sprocket and the driven sprocket.

3. A chain plate type weighing scale according to claim 2, characterized in that: The active rotating shaft is driven by a motor; The tensioning assembly includes a limit frame fixed to the upper end of the wall panel and a tensioning screw threadedly connected to the end of the limit frame. The two ends of the driven shaft extend into the corresponding limit frames, and the tensioning screw extends into the limit frame and is threadedly connected to the driven shaft.

4. A chain plate type weighing scale according to claim 2, characterized in that: The chain assembly includes a chain connected between the corresponding driving sprocket and the driven sprocket and a fixing plate symmetrically connected to the front and rear sides of the chain. The plate is fixed to the corresponding fixing plate by screws, and the screws penetrate through the reserved holes on the plate and are screwed to the corresponding fixing plate.

5. A chain plate type weighing scale according to claim 1, characterized in that: A sliding protrusion is provided on the side of the lifting block close to one end of the sealing plate, and the sliding protrusion is slidably connected to the sliding groove of the side wall of the limiting groove.

6. A chain plate type weighing scale according to claim 1, characterized in that: The inner concave portion on the inner side of the arc-shaped sealing plate has the same curvature as the corresponding convex portion on the outer side of the second arc-shaped plate, and the convex portion on the outer side of the arc-shaped sealing plate has the same curvature as the inner concave portion on the inner side of the corresponding first arc-shaped plate.

7. A chain plate type weighing scale according to claim 1, characterized in that: The lower end of the plate is provided with brackets symmetrically distributed front and back, and the brackets are movably connected to weighing rollers through pins; The upper ends of the front and rear wall panels are provided with an I-shaped frame, and the upper end of the I-shaped frame is provided with guide rails symmetrically distributed front and back. The guide rails are used to support the bottom of the weighing roller, and the weighing roller is also provided with an anti-slip ring located on the inner wall of the guide rail.

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