Clamping weighing machine

Abstract

The utility model relates to the technical field of plastic product production, in particular to a clamping weighing machine which comprises a rack, a supporting plate is arranged in the rack, a front-end conveying belt, a weighing conveying belt and a rear-end conveying belt are sequentially arranged on the supporting plate from left to right, a weighing sensor is arranged in the middle of the supporting plate, the weighing conveying belt is arranged on the weighing sensor, and the rear-end conveying belt is arranged on the rear-end conveying belt. The front-end conveying belt is provided with two symmetrically-arranged clamping conveying belts, a product passage is formed between the clamping conveying belts, and the two sides of the front-end conveying belt are each provided with an adjusting mechanism used for driving the clamping conveying belts to move front and back so as to adjust the distance between the clamping conveying belts. By arranging the clamping conveying belt, the clamping conveying belt can clamp and convey a product to pass through the transition area, the speed of the clamping belt is adjusted to be the same as that of the rear-section conveying belt, the product can be stably transited to the front-section conveying belt, the problem of toppling is prevented, the product can be stably transited to the weighing conveying belt to be detected, and therefore the weighing accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, and particularly relates to a clamping weighing machine. Background Art

[0002] During the blow molding process of plastic products, the problem that the weight of the bottle body does not meet the standard easily occurs. Using manual inspection not only has high costs but also low efficiency. Therefore, machine inspection is generally used to replace manual inspection, which not only improves efficiency but also reduces costs.

[0003] During the transportation of plastic products, the products are transported one by one forward and are prone to tipping. Between two conveyor belts, due to the small height of the products, jitter or tipping of the products during transportation will cause large errors. And when docking the incoming material conveyor belt, the front and rear ends of the conveyor belt are arc-shaped, and there will be a section of unpowered transition area at the docking position. The products are prone to fall down when passing through this position. For this reason, the utility model provides a clamping weighing machine to solve the problem that plastic products are prone to tipping. Summary of the Utility Model

[0004] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above situations.

[0005] A clamping weighing machine includes a frame. A support plate is provided in the frame. A front conveyor belt, a weighing conveyor belt, and a rear conveyor belt are sequentially provided on the support plate from left to right. A weighing sensor is provided in the middle of the support plate. The weighing conveyor belt is arranged on the weighing sensor. Two symmetrically arranged clamping conveyor belts are provided on the front conveyor belt. A passage for products is formed between the clamping conveyor belts. Adjusting mechanisms for driving the clamping conveyor belts to move back and forth to adjust the distance between the clamping conveyor belts are provided on both sides of the front conveyor belt.

[0006] Preferably, the adjusting mechanism includes a fixed frame provided on the frame. The front end of the fixed frame extends to the side of the front conveyor belt. A fixing plate is provided on the fixed frame. A lead screw sleeve is provided on the fixing plate. A lead screw threadedly engaged with the lead screw sleeve is provided on the lead screw sleeve. Both ends of the lead screw are rotatably connected to side plates. One end of the lead screw passes through a cover plate, and a turntable is provided thereon. A cover plate covering the front, rear, and upper parts of the lead screw is provided between the side plates. The bottom of the cover plate abuts against the upper end of the fixing plate. A sliding plate slidably engaged with the fixing plate is provided at the bottom of the fixing plate. Both ends of the sliding plate are respectively connected to the bottoms of the corresponding side plates. The clamping conveyor belt is arranged on the cover plate.

[0007] Preferably, a locking knob is provided on the cover plate. The lead screw can be clamped tightly after the locking knob is locked.

[0008] Preferably, a scale is provided on the front side of the cover plate, and an indicating arrow pointing to the scale is provided on the fixing plate.

[0009] Preferably, the outer end of the turntable has a groove, and a lever rotatably connected thereto is provided on the side of the groove.

[0010] Preferably, an ejection mechanism for ejecting unqualified products is further provided on the rear conveyor belt. The ejection mechanism includes a mounting frame provided on the frame. The mounting frame extends to one side of the rear conveyor belt. An ejection cylinder is provided on the mounting frame, and a rubber head is provided on the piston rod of the ejection cylinder.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: for a clamping weighing machine of the present utility model, by providing a clamping conveyor belt, the clamping conveyor belt will clamp and escort the product through the transition area. By adjusting the speed of the clamping belt to be the same as that of the rear conveyor belt, the product can be smoothly transferred to the front conveyor belt, preventing the problem of tipping over. The product can be smoothly transferred to the weighing conveyor belt for detection, thereby improving the weighing accuracy.

[0012] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative labor, other accompanying drawings can be obtained based on these drawings.

[0014] Figure 1 is a schematic structural diagram of the present utility model.

[0015] Figure 2 is another schematic structural diagram of the present utility model.

[0016] Figure 3 is a schematic structural diagram of the weighing conveyor belt in the present utility model.

[0017] Figure 4 is a schematic structural diagram of the weighing sensor in the present utility model.

[0018] Figure 5 is a schematic structural diagram of the scale in the present utility model.

[0019] Figure 6 is a schematic structural diagram of the locking knob in the present utility model.

[0020] Figure 7 is a schematic structural diagram of the lead screw in the present utility model.

[0021] In the figure: 1, frame; 2, support plate; 3, front conveyor belt; 4, weighing conveyor belt; 5, rear conveyor belt; 6, weighing sensor; 7, clamping conveyor belt;

[0022] 8, adjusting mechanism; 80, fixed frame; 81, fixing plate; 810, lead screw sleeve; 82, lead screw; 83, side plate; 84, cover plate; 85, sliding plate; 86, locking knob; 87, scale; 88, indicating arrow;

[0023] 9, turntable; 10, groove; 11, lever; 12, rejection mechanism; 13, mounting rack; 14, rejection cylinder; 15, rubber head. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 7 , in the embodiment of the present invention, a clamping weighing machine includes a frame 1. A support plate 2 is provided in the frame 1. A front conveyor belt 3, a weighing conveyor belt 4, and a rear conveyor belt 5 are sequentially provided on the support plate 2 from left to right. A weighing sensor 6 is provided in the middle of the support plate 2. The weighing conveyor belt 4 is provided on the weighing sensor 6. Two symmetrically arranged clamping conveyor belts 7 are provided on the front conveyor belt 3. A passage for products is formed between the clamping conveyor belts 7. Adjusting mechanisms 8 for driving the clamping conveyor belts 7 to move back and forth to adjust the distance between the clamping conveyor belts 7 are provided on both sides of the front conveyor belt 3;

[0026] When conveying plastic products, such as plastic bottles, etc., the plastic products will be conveyed forward one by one. The front conveyor belt 3 will be connected to the incoming conveyor belt (not shown in the figure). Since the front and rear ends of the incoming conveyor belt and the front conveyor belt 3 are arc-shaped, there will be a section of powerless transition area at the connection. The products are likely to fall down when passing through this position. By providing the clamping conveyor belts 7, the clamping conveyor belts 7 will clamp and escort the products through the transition area. By adjusting the speed of the clamping belt to be the same as that of the rear conveyor belt, the products can be smoothly transitioned to the front conveyor belt, preventing the problem of dumping. The products can be smoothly transitioned to the weighing conveyor belt 4 for detection, thereby improving the weighing accuracy.

[0027] And the distance between the clamping conveyor belts 7 is adjusted by the adjusting mechanism 8, so as to adapt to products of different sizes.

[0028] Furthermore, the adjusting mechanism 8 includes a fixed frame 80 provided on the frame 1. The front end of the fixed frame 80 extends to the side of the front conveyor belt 3. A fixed plate 81 is provided on the fixed frame 80. A lead screw sleeve 810 is provided on the fixed plate 81. A lead screw 82 that is in threaded cooperation with the lead screw sleeve 810 is provided on the lead screw sleeve 810. Both ends of the lead screw 82 are provided with side plates 83 that are rotatably connected thereto. One end of the lead screw 82 passes through the cover plate 84, and a turntable 9 is provided thereon. A cover plate 84 that covers the front, rear, and upper portions of the lead screw 82 is provided between the side plates 83. The bottom of the cover plate 84 abuts against the upper end of the fixed plate 81. A sliding plate 85 that is in sliding cooperation with the fixed plate 81 is provided at the bottom of the fixed plate 81. Both ends of the sliding plate 85 are respectively connected to the bottoms of the corresponding side plates 83. The clamping conveyor belt 7 is provided on the cover plate 84. When adjusting the clamping conveyor belt 7, the turntable 9 is rotated, the lead screw 82 moves, thereby driving the cover plate 84 to move, and then the clamping conveyor belt 7 can be driven to move. In this way, the distance between the clamping conveyor belts 7 can be adjusted to adapt to products of different sizes.

[0029] Furthermore, a locking knob 86 is provided on the cover plate 84. After the locking knob 86 is locked, it can clamp the lead screw 82. By providing the locking knob 86, after the distance between the clamping conveyor belts 7 is adjusted, by adjusting the locking knob 86, the lead screw 82 can be clamped and displacement due to loosening will not occur. It should be noted that the lower end of the locking knob 86 passes through the cover plate 84 and is in threaded cooperation therewith, so that the lead screw 82 can be clamped after the adjusting knob is rotated.

[0030] Furthermore, a scale 87 is provided on the front side of the cover plate 84, and an indicating arrow 88 pointing to the scale 87 is provided on the fixed plate 81. During adjustment, the fixed plate 81 is fixed, the scale 87 is provided on the cover plate 84, and after the cover plate 84 moves, the moving value can be obtained, which is convenient for adjustment.

[0031] Furthermore, the outer end of the turntable 9 has a groove 10, and a lever 11 that is rotatably connected to the side of the groove 10 is provided. By pulling out the lever 11, the turntable 9 can be rotated through the lever 11.

[0032] Furthermore, a rejection mechanism 12 for removing unqualified products is also provided on the rear conveyor belt 5. The rejection mechanism 12 includes a mounting frame 13 provided on the frame 1. The mounting frame 13 extends to one side of the rear conveyor belt 5. A rejection cylinder 14 is provided on the mounting frame 13. A rubber head 15 is provided on the piston rod of the rejection cylinder 14. After passing through the weighing conveyor belt 4 for weighing, unqualified products can be obtained. When the products flow onto the rear conveyor belt 5, the rejection mechanism 12 can remove the unqualified products.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model.

Claims

1. A clamping weighing machine, which comprises a frame. A support plate is arranged in the frame. A front conveyor belt, a weighing conveyor belt and a rear conveyor belt are sequentially arranged on the support plate from left to right. A weighing sensor is arranged in the middle of the support plate. The weighing conveyor belt is arranged on the weighing sensor. It is characterized in that, There are two symmetrically arranged clamping conveyor belts on the front conveyor belt. An aisle for products is formed between the clamping conveyor belts. On both sides of the front conveyor belt, there are adjusting mechanisms for driving the clamping conveyor belts to move back and forth to adjust the distance between the clamping conveyor belts.

2. The clamping weighing machine according to claim 1, wherein, The adjusting mechanism includes a fixed frame arranged on the machine frame. The front end of the fixed frame extends to the side of the front conveyor belt. There is a fixed plate on the fixed frame. There is a lead screw sleeve on the fixed plate. A lead screw that is threadedly engaged with it is arranged on the lead screw sleeve. Both ends of the lead screw are rotatably connected to side plates. One end of the lead screw passes through the cover plate, and a turntable is arranged on it. A cover plate that covers the front, rear, and upper parts of the lead screw is arranged between the side plates. The bottom of the cover plate abuts against the upper end of the fixed plate. A sliding plate that is slidably engaged with it is arranged at the bottom of the fixed plate. Both ends of the sliding plate are respectively connected to the bottoms of their corresponding side plates. The clamping conveyor belt is arranged on the cover plate.

3. The clamping weighing machine according to claim 2, characterized in that, There is a locking knob on the cover plate. After the locking knob is locked, it can clamp the lead screw.

4. The clamping weighing machine according to claim 2, characterized in that, There is a scale on the front side of the cover plate. There is an indicating arrow on the fixed plate that points to the scale.

5. The clamping weighing machine according to claim 2, wherein, The outer end of the turntable has a groove, and a lever that is rotatably connected to it is arranged on the side of the groove.

6. The clamping weighing machine according to claim 1, characterized in that, There is also a rejection mechanism on the rear conveyor belt for removing unqualified products. The rejection mechanism includes a mounting frame arranged on the machine frame. The mounting frame extends to one side of the rear conveyor belt. There is a rejection cylinder on the mounting frame. A rubber head is arranged on the piston rod of the rejection cylinder.

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