JPH0610221U - Belt simple detachable conveyor for metal detector - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a belt simple detachable conveyor for a metal detector in which the conveyor belt can be easily removed. [Structure] Part of the conveyor frame 3 on the side of the top pulley 5 is connected by pin fulcrums 13 and 13 'to make it swingable, and the belt 4 is bent as it is so that the belt 4 is sufficiently loosened and the pulley 5 is removed. The drive chain 32 on the one drive side can be easily loosened. The idler 31 is further moved to drive the drive pulley 6.
The belt 4 can be easily removed from the machine by removing the slide plate under the belt 4 that is set so that it can be taken out by simply pulling up when the belt 4 is in the free state. it can. That is, the conveyor belt 4 can be easily attached and detached only by removing the component having the lowest number of components while leaving the main frame 3 as it is.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a metal detector, which is widely used in a wide range of industries such as chemistry, food, sewing and various raw material industries.

[0002]

[Prior art]

 Conventionally, various methods have been attempted as methods for simply removing and attaching the belt of this type of belt conveyor, and they have been put to practical use.However, in order to remove the conveyor belt, metal detection is generally used. In many cases, the detection coil unit is taken out separately from the machine support frame along with the conveyor main frame, and there are few structures that easily take out the belt alone.

[0003]

[Problems to be solved by the device]

 Generally, the reason why the conveyor belt of a metal detector needs to be removed is not only when the belt is aged or damaged, but also when the belt surface is dirty. In machines, there are overwhelming opportunities to remove and install the belt to clean it due to dirt. In this case, it is extremely useful to be able to quickly remove only the belt from the machine body, but such a simple belt attachment / detachment method is rarely found.

The present invention provides a belt belt simple detachable conveyor for a metal detector in which a conveyor belt can be easily removed.

[0005]

[Means for Solving the Problems]

 In order to achieve this purpose, the belt detachable conveyor for metal detectors according to the present invention is a belt that can be freely swung by connecting a part of the top pulley side of the conveyor frame with a pin fulcrum, and then bending the belt without bending. The drive chain on one drive side can be easily loosened by giving sufficient slack to the pulley. Furthermore, by moving the idler wheel and removing it easily together with the drive pulley, and when the belt is in the free state, you can remove it by simply pulling it up. Can be easily separated from the machine. In other words, the conveyor belt can be easily attached and detached by simply removing the component with the lowest number of components without leaving the main frame.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a belt detachable conveyor for a metal detector of the present invention. In FIG. 1, reference numeral 1 denotes a detection coil of a metal detector, which is supported on a main frame 3 by a shock absorber 2 so as to be free from vibration. A conveyor belt 4 is driven by a top pulley 5 and a drive pulley 6, and is a slide plate fixed on a main frame 3 with a gourd-shaped hole 24 and a screw with a head as shown in a partially detailed plan view of FIG. 7 and the headless screw 25, the vehicle is driven in the direction A while slipping lightly on the slide plates 8, 9 and 10 set in the loose fitting holes. The main frame 3 is divided into two parts at an intermediate portion between the top pulley 5 and the detection coil 1, and the tip end frames 11, 11 ′ thereof are provided with support plates 12, 12 ′ and support pins 13, which are provided in a part of the main frame 3. It is swingably supported above the horizontal plane at 13 '. As shown in FIG. 4, the top pulley 5 is rotatable by a shaft 15 having a built-in rolling bearing 14, and both ends of the shaft 15 are fixed metal parts 16 and 16 'so that they can be fitted into the concave slide parts 16 and 16a'. It is fitted into the tension metal fittings 17 and 17 'and fixed with set screws 18 and 18'. The tension hardware 17, 17 'has a threaded rod 23 fitted to the fixing ribs 19, 20 (holes on the target side are omitted) with holes of the frame 11, 11', and has a spring 21 and an adjustment for adjusting the strength of the spring 21. The nut 22 supports the top pulley 5 slidably in the lateral direction so as to push the belt 4 in a direction in which the belt 4 is lightly tensioned when normally assembled. FIG. 2 is a side view of the conveyor head portion such as the support pin 13 and the top pulley 5, and FIG. 3 shows one side of the plane thereof. When the belt 4 is disassembled and taken out, if the top pulley 5 is lifted up in the U direction shown in the drawing, the rotation center, that is, the fulcrum 13 is displaced from the normal center of the top pulley 15 and is in the upper position. In the vicinity of the position shown by the chain line, the length is insufficient, and the spring 21 is compressed by the amount shown in the figure D. However, if the angle is swung upward by a larger angle, the belt 4 passes through this branch point and the belt 4 It becomes completely loose and removable. The fact that this branch point is on the upper side means that the relationship between the main frame 3 and the frame 11 during operation can be kept free without fixing, and the labor for disassembling can be further reduced, and the tension hardware 17 and the spring 21 can be further removed. It is also the reason for equipping. Only the middle plate 7 of the slide plates 7, 8, 9 and 10 is provided with the gourd hole 24 because when the frames 11 and 11 'are lifted and the belt 4 is sufficiently loosened, the plate 7 can be easily replaced with a simple fool hole. This is because the small side of the gourd hole 24 is always fastened with a screw with a head so as to prevent the plate 7 from falling off, and when the plate 7 is removed, it is pulled up by sliding it to the large diameter side. The drive pulley 6 is rotatably supported by square bearings 26, 26 '. The square bearings 26, 26' are attached to the square recess slit portions 26a, 26a 'of the tail portion of the main frame 3 by screws 27, 27'. Fixed. A drive wheel 28 is mounted on the shaft end of the drive pulley 6, and an electric motor 29 mounted on the main frame 3 and a drive wheel 30 and an idler wheel 31 mounted on the shaft of the main frame 3 are connected by a chain 32 to drive a conveyor. FIG. 4 shows a mounting relationship between the idle wheel 31 and the main frame 3 (cross section taken along the line BB in FIG. 1). The idle wheel 31 is rotatably supported by a bearing 35 of a clamp lever 34 with a shaft, and is fixed by a nut 37 through a distance piece 36 in a long hole 33 indicated by the length S in FIG. At this time, the chain 32 is set in a tensioned state at the position shown in FIG. 38 is a detent for the nut 37, and is welded to the main frame 3 over the entire length of the length S. Here, the procedure for disassembling and taking out the belt 4 is as follows. Loosen the clamp lever 34, move the idler wheel 31 to the distance S according to the elongated hole 33, and slide it to the position 31 'shown in the figure. . Significantly loosening the belt 4 at the top of the conveyor and removal of this drive chain 32 facilitates subsequent belt disassembly. Therefore, first, dodge the head screw with the large-diameter hole of the gourd hole 24 of the slide plate 7, and pull up the plate 7 to remove it. Next, since the slide plates 8, 9 and 10 are lightly fitted to the headless screws with loose holes, they can be easily removed by simply pulling them up. The conveyor belt 4 is loosened by bending the tip of the frame upward with the support pins 13, 13 'as fulcrums. When the screws 18, 18 'and 27, 27' for setting the pulleys 5, 6 on both ends are loosened, the square concave slit portions 26a, 26a 'of the main frame 3 and the square concave slit portions of the tension metal fitting 17 are tightened. It can be easily removed from each of 16a and 16a '. Therefore, as shown in FIG. 3, the width W of the belt 4 is slightly larger than the width of the supporting portions of the slide plates 7, 8, 9, and 10. Therefore, the pulleys 5 and 6 at both ends are removed from the belt 4. If it is taken, the belt 4 can be pulled out of the detection coil 1, so that it can be completely removed from the machine.

[0007]

[Effect of device]

 As described in detail above, the present invention removes the minimum parts from the metal detector body and takes out the conveyor belt from the machine by the disassembly work for the minimum time, and by the reverse operation of disassembly and removal. The belt can be attached, and labor can be saved. Therefore, for example, in a metal detector for food, when it is necessary to frequently take the belt out of the machine and wash it with water for sanitary maintenance, it is very convenient and practically effective.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the device of the present invention.

FIG. 2 is a partially detailed side view of the device of the present invention.

FIG. 3 is a partially detailed plan view of the device of the present invention.

FIG. 4 is a partial detailed cross-sectional view of the device of the present invention.

[Explanation of symbols]

 1 Detection coil of metal detector 2 Buffer 3 Main frame 4 Conveyor belt 5 Top pulley 6 Drive pulley 7, 8, 9, 10 Sliding pulley 11, 11 'Tip frame 12, 12' Support plate 13, 13 'Support pin 14 Bearing 15 Shaft 16, 16 'Fixing hardware 16a, 16a' Square concave slit part 17, 17 'Tension hardware (accommodating body) 18, 18' Set screw 19, 20 Fixing rib 21 Spring 22 Adjusting nut 23 Screw rod 24 Gourd-shaped Hole 25 Headless screw 26, 26 'Square bearing 26a, 26a' Square concave slit part 27, 27 'Screw 28 Drive vehicle 29 Electric motor 30 Motor vehicle 31 Idle vehicle 32 Chain 33 Long hole 34 Clamp lever 35 Bearing 36 Distance piece 38 Detent

Claims (1)

[Scope of utility model registration request] 1. A conveyor belt penetrates a detection space of a detection coil of a metal detector that detects metal by a detection coil that is a combination of an excitation coil and a reception coil, and is between a driven bottom pulley and a non-driven top pulley. In a metal detector conveyor in which a belt conveyor is configured to be driven endlessly, the frame of the belt conveyor has a main body and a tip portion in the middle between the tip of the non-driving top pulley side and the position of the detection coil. And the main body and the tip portion are connected by a support pin at the divided position, and the tip portion is supported by the main body so as to be rotatable above a horizontal plane, and the non-driving top Shafts at both ends of the pulley and the bottom pulley for driving are respectively the end surface of the tip end and the other end surface of the main body opposite to the dividing position. Each of the housings, which are detachably housed and supported outward in the recesses of the housings provided in the housings, and housing and supporting the both end shafts of the non-driving top pulley, always applies a tension force to the conveyor belt. A drive chain is supported on the end face of the tip by a support body having a built-in spring, and a drive chain is installed between the drive wheel mounted on the shaft end of the drive bottom pulley and the motor-side prime mover fixed to the main body. An appropriate tension is always applied to the drive chain by an idler supported on the main body by a fixed support that is movable with a sufficient stroke, and is coupled to the drive chain. The slide plate located below the side flat surface has a width somewhat wider than the width of the conveyor belt and extends over the entire length of the conveyor belt. Te, metal detector belt quick release type conveyor, characterized in that it is freely held removably upwards on the frame is divided into a plurality.