Full-automatic weight checking machine

Abstract

The utility model provides a full-automatic weight checking machine which comprises a machine frame, an input belt, a weighing belt, an output belt and a removing mechanism, a discharging mechanism is arranged at the position, located at the input end of the input belt, of the machine frame, baffles are arranged on the two sides of the input belt, and the distance between the two baffles only allows one object to be checked to pass through. And one baffle is provided with a material distributing mechanism. According to the full-automatic weight checking machine provided by the utility model, products do not need to be manually placed, so that the labor cost is saved; the time of products passing through the weighing belt can be accurately controlled through the material distributing mechanism, and weighing errors are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of weight checking devices, in particular to a full-automatic weight checking machine. Background Art

[0002] The fully automatic checkweigher is a device used to continuously and automatically weigh and compare products, and to remove products with unqualified weight. For example, the automatic checkweigher disclosed in the utility model patent CN 202037126 U includes three sections of conveyor belts placed on the machine base, which are connected head to tail longitudinally. The three sections of conveyor belts are the input belt, the weighing belt machine platform and the output belt; the signal output end of the high-precision weighing sensor of the weighing belt machine platform is connected to the signal input end of the programmable controller through an A / D converter; the control end of the programmable controller is connected to the rejection alarm device located at the output belt; the control end of the programmable controller is further connected to the driving mechanism of the three sections of conveyor belts. It mainly solves the technical problems of low work efficiency and poor accuracy in the existing operation of weighing and distinguishing products one by one manually, which improves the accuracy of product weight and the speed of work, and is conducive to uninterrupted work in conjunction with product production and packaging lines.

[0003] However, the above utility model patent still has some shortcomings: for example, the products need to be placed one by one on the input belt manually, which results in high labor costs; moreover, if the spacing between the manually placed products is uneven, it is easy for two products to appear on the weighing belt at the same time, resulting in weighing errors. Utility Model Content

[0004] In order to make up for the deficiencies in the prior art, the utility model provides a fully automatic checkweigher, which does not require manual placement of products and saves labor costs; the time for products to pass through a weighing belt can be accurately controlled through a material dividing mechanism to avoid weighing errors.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A fully automatic checkweigher comprises a frame, an input belt, a weighing belt, an output belt and a rejecting mechanism, wherein the frame is provided with a feeding mechanism at the input end of the input belt, and baffles are provided at both sides of the input belt, the distance between the two baffles only allows one object to be checked to pass through, and one of the baffles is provided with a material dividing mechanism.

[0007] Furthermore, the material dividing mechanism includes a material dividing rod, a turntable, a locking rod, a cam, and a motor. A material dividing rod opening is provided on one side of the baffle, the material dividing rod is cross-shaped and one side is placed in the material dividing rod opening, the material dividing rod is connected to the turntable, and the turntable is rotatably connected to the frame, and four slots are evenly arranged on the turntable; one end of the locking rod is hinged to the frame, and the other end is provided with a hook, and the hook engages with the slot, the motor is arranged on the frame on one side of the locking rod, the cam is connected to the motor, and a reset spring connected to the frame is provided in the middle of the locking rod, and the cam lifts up the locking rod after rotating a certain angle to separate the hook from the slot.

[0008] Furthermore, a protrusion is provided on a side of the locking rod facing the cam.

[0009] Furthermore, the unloading mechanism includes a unloading hopper and a slideway. The unloading hopper is trumpet-shaped and has a unloading port at the bottom. The slideway is inclined, with one end connected to the unloading port and the other end arranged above the input end of the input belt.

[0010] Furthermore, a vibrator is provided on the bottom surface of the lower hopper.

[0011] Furthermore, the rejection mechanism includes a pushing cylinder and a pushing plate, wherein the pushing cylinder is arranged on one side of the output belt, and the pushing plate is connected to the pushing cylinder.

[0012] Furthermore, an inclined discharge chute is provided on the frame on the side opposite to the pushing cylinder, and the inlet of the discharge chute is trumpet-shaped.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The fully automatic checkweigher of the utility model is provided with a feeding mechanism, which can put all products into the feeding mechanism for feeding, thereby saving labor costs; baffles are provided on both sides of the input belt, so that the products coming out of the feeding mechanism can only be conveyed one by one, and then through the function of the dividing mechanism, the products can enter the weighing mechanism one by one, thereby avoiding the situation where multiple products enter at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of a fully automatic checkweighing machine of the utility model.

[0016] Figure 2 It is a structural diagram of the material dividing mechanism of the utility model.

[0017] Among them: 1. frame; 2. unloading mechanism; 21. unloading hopper; 22. slideway; 23. vibrator; 3. input belt; 31. baffle; 4. weighing belt; 5. output belt; 6. material distribution mechanism; 61. material distribution rod; 62. turntable; 621. slot; 63. locking rod; 631. hook; 632. protrusion; 64. cam; 65. motor; 66. reset spring; 7. rejection mechanism; 71. pushing cylinder; 72. push plate; 8. discharge trough; 9. tested product. DETAILED DESCRIPTION

[0018] Many specific details are described in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from the description, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Example 1

[0020] like Figure 1-2 As shown, a fully automatic checkweigher, a frame 1 is provided with a feeding mechanism 2, an input belt 3, a weighing belt 4, and an output belt 5 from left to right. The feeding mechanism 2 includes a feeding hopper 21 and a slide 22. The feeding hopper 21 is trumpet-shaped and has a feeding port at the bottom. The slide 22 is inclined, one end of which is connected to the feeding port and the other end is provided above the input end of the input belt 3. The width of the slide 22 allows only one product to pass through. A vibrator 23 is provided on the bottom of the feeding hopper 21.

[0021] During operation, all products can be put into the unloading hopper 21, and then the vibrator 23 is turned on. The vibrator 23 vibrates to make the products enter the slide 22. Under the action of gravity, the products in the slide 22 slide onto the input belt 3 by themselves, thereby realizing automatic unloading.

[0022] Baffles 31 are provided on both sides of the input belt 3, and the distance between the two baffles 31 allows only one heavy object to be inspected to pass through. A material separation rod opening 32 is provided on one of the baffles 31. A material separation mechanism 6 is provided on the frame 1 on one side of the material separation rod opening 32, which is used to release the products on the input belt 3 in a gap.

[0023] The material distribution mechanism 6 includes a material distribution rod 61, a rotating disk 62, a locking rod 63, a cam 64, a motor 65 and a reset spring 66. The material distribution rod 61 is cross-shaped and one side is placed in the material distribution rod opening 32. The material distribution rod 61 is connected to the rotating disk 62, and the rotating disk 62 is rotatably connected to the frame 1. Four card slots 621 are evenly arranged on the rotating disk 62. One end of the locking rod 63 is hinged to the frame 1, and the other end is provided with a hook 631, and the hook 631 is engaged with the card slot 621. The motor 65 is arranged on the frame 1 on one side of the locking rod 63, and the cam 64 is connected to the motor 65. The reset spring 66 connects the middle part of the locking rod 63 and the frame 1. The locking rod 63 is provided with a protrusion 632 on the side facing the cam 64.

[0024] When the convex surface of the cam 64 is away from the locking rod 63, under the action of the reset spring 66, the hook 631 of the locking rod 63 engages with the slot 621 on the turntable 62, the material distribution rod 61 cannot rotate, and the product 9 to be tested will be stuck in the material distribution rod 61; when the convex surface of the cam 64 contacts the protrusion 632, the locking rod 63 will be lifted, so that the hook 631 is separated from the slot 621, so that the material distribution rod 61 can rotate, and under the drive of the input belt 3, a product 9 to be tested is released. As the convex surface of the cam 64 gradually moves away from the protrusion 632, the hook 631 engages with the next slot 621, and the cycle is repeated to achieve the effect of releasing products through gaps.

[0025] The frame 1 on one side of the output belt 5 is provided with a rejection mechanism 7. The rejection mechanism 7 includes a push cylinder 71 and a push plate 72. The push cylinder 71 is vertically provided on one side of the output belt 5, and the push plate 72 is connected to the push cylinder 71. When the weighing belt 4 detects that the measured product 9 does not meet the specified weight, after the product enters the output belt 5, the push cylinder 71 is activated to enable the push plate 72 to push out the unqualified measured product 9.

[0026] An inclined discharging chute 8 is provided on the frame 1 on one side of the relative push cylinder 71, and the inlet of the discharging chute 8 is horn-shaped. The discharging chute 8 can guide the unqualified products to fall smoothly into the material frame placed below it.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic checkweigher, comprising a frame, an input belt, a weighing belt, an output belt and a rejecting mechanism, characterized in that: The frame is provided with a feeding mechanism at the input end of the input belt and baffles at both sides of the input belt, the spacing between the two baffles only allows one heavy object to be inspected to pass through, one of the baffles is provided with a feeding mechanism, the feeding mechanism includes a feeding rod, a turntable, a locking rod, a cam, and a motor, a feeding rod opening is provided on one side of the baffle, the feeding rod is cross-shaped and one side is placed in the feeding rod opening, the feeding rod is connected to the turntable, the turntable is rotatably connected to the frame, and four card slots are evenly provided on the turntable; one end of the locking rod is hinged to the frame, and the other end is provided with a hook, the hook is engaged with the card slot, the motor is provided on the frame on one side of the locking rod, the cam is connected to the motor, a reset spring connected to the frame is provided in the middle of the locking rod, and the cam lifts up the locking rod after rotating a certain angle to separate the hook from the card slot.

2. The fully automatic check weighing machine according to claim 1, characterized in that: A protrusion is provided on one side of the locking lever facing the cam.

3. The fully automatic check weighing machine according to any one of claims 1 to 2, characterized in that: The unloading mechanism comprises a unloading hopper and a slideway. The unloading hopper is trumpet-shaped and has an unloading port at the bottom. The slideway is tilted, with one end connected to the unloading port and the other end arranged above the input end of the input belt.

4. The fully automatic check weighing machine according to claim 3, characterized in that: A vibrator is provided on the bottom surface of the lower hopper.

5. The fully automatic check weighing machine according to claim 4, characterized in that: The rejecting mechanism comprises a pushing cylinder and a pushing plate, wherein the pushing cylinder is arranged at one side of the output belt, and the pushing plate is connected to the pushing cylinder.

6. The fully automatic check weighing machine according to claim 5, characterized in that: An inclined material discharging trough is arranged on the frame at one side opposite to the pushing cylinder, and the inlet of the material discharging trough is in a trumpet shape.

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