Food detection and conveying device and method of using the same

Abstract

The present invention relates to the technical field of food conveying, and discloses a food detection conveying device and a method of using the same, wherein the conveying device comprises a conveying part, wherein the conveying part comprises a casing, wherein a conveying chain for transferring external bottled food is arranged in the space enclosed by the casing, wherein a driving unit for transmission with the conveying chain is arranged on the side of the casing, and a detection part, wherein the detection part comprises a shaft, wherein a transmission box rotatably connected with the shaft is arranged on the top of the driving unit, wherein the shaft is fixedly connected with a plurality of groups of bottle cap detection parts through a rotating frame sleeved on the outer surface of the shaft. The food detection conveying device and the method of using the same can effectively solve the problem in the prior art that, during the batch production and processing of bottled food, there are very few bottles with missing caps or leaking caps, and during the conveying process, they cannot be quickly selected, which easily leads to oxidation of the food in the bottle, leakage of food odor to pollute the surrounding environment, and even leakage of the food in the bottle.

Description

Technical Field

[0001] The present invention relates to the technical field of food conveying, and in particular to a food detection and conveying device and a use method thereof. Background Art

[0002] In the production of bottled food, the application of conveying equipment is very important. Different conveying equipment can be selected according to different food types and production requirements. For bottled food, chain conveyors, mesh belt conveyors and other equipment are usually used for conveying. These equipment can smoothly convey the bottles to the next process, while also ensuring the hygiene and cleanliness of the bottles.

[0003] The caps of bottled food are usually automatically put on with the help of a capping machine and tightened with a capping machine. However, during the mass production process, there are still a few bottles with missing caps or leaking caps. During the transportation process, they cannot be quickly picked out, which can easily lead to oxidation of the food in the bottle, leakage of food odor and pollution of the surrounding environment, and even leakage of food in the bottle. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a food inspection and conveying device and a method of using the same, which can effectively solve the problem in the prior art that, during the batch production and processing of bottled food, there are very few bottles with missing caps or leaking caps. During the conveying process, they cannot be quickly picked out, which easily leads to oxidation of the food in the bottle, leakage of food odor and pollution of the surrounding environment, and even leakage of food in the bottle.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a food detection and conveying device, comprising:

[0009] A conveying part, the conveying part comprises a casing, a conveying chain for transferring external bottled food is arranged in the space enclosed by the casing, and a driving unit for transmission with the conveying chain is arranged on the side of the casing;

[0010] The detection part includes a shaft, a transmission box rotatably connected to the shaft is arranged on the top of the driving unit, and the shaft is fixedly connected to a plurality of groups of bottle cap detection members through a rotating frame sleeved on the outer surface of the shaft;

[0011] Among them, the bottle cap detection part includes a fixed rod, the fixed rod is fixedly connected to the outer surface of the circumference of the rotating frame at one end close to the shaft rod, the outer surface of the circumference of the fixed rod is slidably connected with a detection rod, and the fixed rod is provided with a strong spring connected to the inside of the detection rod at one end away from the rotating frame.

[0012] Furthermore, it also includes a positioning part, which includes a driving box, the top of which is rotatably connected to a driving wheel, a pair of driving wheels are sleeved on the circumferential outer surfaces with conveyor belts engaged with the external bottle body, and the inner wall of the casing is fixedly connected to a smooth rod that fits the external bottle body.

[0013] Furthermore, a test head is fixedly connected to one end of the detection rod away from the fixed rod, and the test head is slidably connected to a locking block that fits with the inner wall of the external bottle mouth through a T-slot provided on its circumferential outer surface. A locking hole is provided on the side of the locking block close to the T-slot, and a reset spring connected to the groove on the inner wall of the T-slot is arranged inside the locking hole.

[0014] Furthermore, a first semi-circular spherical groove is provided at the top of the inner wall of the T-shaped groove, a vertical hole connected to the interior of the first semi-circular spherical groove is provided on the upper surface of the test head, the detection rod is slidably connected to a counterweight plate via a protrusion arranged on its circumferential outer surface, a lifting rod sliding with the inner wall of the vertical hole is fixedly connected to the outer surface of the counterweight plate, and a lifting ball fitting with the inner wall of the first semi-circular spherical groove is fixedly connected to the outer surface of the lifting rod via a connecting rod.

[0015] Furthermore, a square groove is provided inside the locking block and fits with the outer surface of the lifting rod, the bottom end of the lifting rod passes through the vertical hole and extends into the square groove, and a second semicircular spherical groove is provided on the upper surface of the locking block and fits with the spherical surface of the lifting ball, and the second semicircular spherical groove and the square groove are connected.

[0016] Furthermore, the diameter of the test head is smaller than the inner diameter of the outer bottle mouth, the diameter of the counterweight plate is larger than the inner diameter of the outer bottle mouth, the horizontal cross-sectional length of the square groove is much larger than the horizontal cross-sectional length of the vertical hole, and the edges of the first semi-circular spherical groove and the second semi-circular spherical groove are both designed with arc edges.

[0017] Furthermore, a recovery box is fixedly connected to the outer surface of the casing through a frame, a recovery hole is opened on the side of the recovery box close to the shaft rod, and the recovery box is rotatably connected to a roller that fits the outer surface of the counterweight plate through a bracket arranged on its outer surface.

[0018] A method for using a food inspection and conveying device comprises the following steps:

[0019] S1: Bottled food conveying: The bottled food is smoothly transferred to the conveyor chain through the automated conveyor line. Then, the conveyor chain drives the bottled food evenly distributed above it to slowly convey forward. Then, the fitting groove on the conveyor belt begins to clamp the corresponding bottled food and convey it forward smoothly.

[0020] S2: Bottled food detection. As the rotating frame drives the bottle cap detection piece to make a circular motion, when the bottled food contacts the bottle cap detection piece, if the bottled food itself has a cap, the bottle cap detection piece cannot extend into the bottled food and combine with it. If the bottled food itself has no cap, the bottle cap detection piece will extend into the bottled food and combine with it.

[0021] S3: Recycling of bottles without caps. The cap detection element drives the bottled food without caps to do circular motion synchronously. When the cap detection element contacts the outer surface of the roller, the roller will push the cap detection element to reset quickly. The bottled food without caps is selected and transferred to the recycling bin.

[0022] S4: Repeat S1 to S4 to inspect, convey and recycle the next group of bottled foods.

[0023] Beneficial Effects

[0024] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0025] The present invention is provided with a bottle cap detection member and a roller. The test head on the bottle cap detection member will start to rotate and fall into the bottle mouth. As the bottled food continues to move forward, the test head and the locking block begin to extend into the bottleneck. When the test head and the locking block rotate toward the lowest point, the bottle mouth begins to contact the counterweight plate and generate an upward thrust to the counterweight plate. The counterweight plate slides upward along the outer surface of the protrusion for a short distance, driving the lifting ball to disengage from the second semicircular ball groove and insert into the first semicircular ball groove. At the same time, the locking block is subjected to the elastic force of the reset spring, and the locking block slides rapidly outward along the inner wall of the T-slot. The four groups of locking blocks are rapidly unfolded and attached to the inner wall of the bottle body. The locking block passes the lowest point, and the uncovered bottled food will rotate synchronously with its corresponding locking block, thereby realizing the automatic selection of uncovered bottled food. The counterweight plate on the bottle cap detection part begins to contact the outer surface of the roller circumference, and the outer surface of the roller circumference generates thrust on the counterweight plate, driving the lifting ball to begin to disengage and slide into the second semicircular ball groove until the lifting ball is stuck in the second semicircular ball groove again, driving the four sets of locking blocks to quickly "retract and reset" for the next set of detection. The uncovered bottled food is restricted by the recycling hole and falls into the recycling bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a flow chart of a method for using the food inspection and conveying device according to an embodiment of the present invention;

[0028] Figure 2 It is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure from another angle of an embodiment of the present invention;

[0030] Figure 4 For the embodiment of the present invention Figure 3 A schematic diagram of the structure with a partial enlargement at the center;

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the recycling box, the bracket, the roller and the bottle cap detection member according to the embodiment of the present invention;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning part according to an embodiment of the present invention;

[0033] Figure 7 It is a structural schematic diagram of a three-dimensional partial cross-section of a bottle cap detection component according to an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the structure of the three-dimensional separation of the bottle cap detection component according to an embodiment of the present invention;

[0035] Fig. 9 It is a schematic diagram of the three-dimensional structure of the locking block and the return spring according to an embodiment of the present invention;

[0036] Fig.10 It is a schematic diagram of the three-dimensional structure of the detection rod and the test head according to an embodiment of the present invention;

[0037] Fig.11 It is a schematic diagram of the three-dimensional structure of the counterweight plate, lifting rod and lifting ball according to an embodiment of the present invention.

[0038] The numbers in the figure represent: 1, conveying part; 11, housing; 111, recovery box; 112, recovery hole; 113, bracket; 114, roller; 12, conveying chain; 13, driving unit; 131, transmission box; 2, detection part; 21, shaft; 22, rotating frame; 23, bottle cap detection part; 231, fixed rod; 232, detection rod; 2321, bump; 233, strong spring; 234 , test head; 2341, T-slot; 2342, first semicircular spherical slot; 2343, vertical hole; 235, locking block; 2351, locking hole; 2352, return spring; 2353, square slot; 2354, second semicircular spherical slot; 236, counterweight plate; 237, lifting rod; 238, lifting ball; 3, positioning part; 31, drive box; 32, drive wheel; 33, conveyor belt; 34, smooth rod. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0040] The present invention will be further described below in conjunction with the embodiments.

[0041] Example:

[0042] See also Figure 2-Figure 11 The present invention provides a technical solution: a food detection and conveying device, comprising:

[0043] The conveying part 1 comprises a casing 11, a conveying chain 12 for transferring external bottled food is arranged in the space enclosed by the casing 11, and a driving unit 13 for transmission with the conveying chain 12 is arranged on the side of the casing 11;

[0044] The detection part 2 includes a shaft 21. A transmission box 131 rotatably connected to the shaft 21 is disposed on the top of the driving unit 13. The shaft 21 is fixedly connected to a plurality of groups of bottle cap detection members 23 via a rotating frame 22 sleeved on the outer surface of the shaft 21.

[0045] Among them, the bottle cap detection part 23 includes a fixed rod 231, the end of the fixed rod 231 close to the shaft rod 21 is fixedly connected to the circumferential outer surface of the rotating frame 22, the circumferential outer surface of the fixed rod 231 is slidably connected with the detection rod 232, and the end of the fixed rod 231 away from the rotating frame 22 is provided with a strong spring 233 connected to the inside of the detection rod 232.

[0046] The machine body 11 further comprises a positioning part 3, which comprises a driving box 31, the top of which is rotatably connected to a driving wheel 32, a pair of driving wheels 32 are sleeved on the circumferential outer surface with a conveyor belt 33 engaged with the external bottle body, and the inner wall of the casing 11 is fixedly connected to a smooth rod 34 that fits the external bottle body.

[0047] A test head 234 is fixedly connected to one end of the detection rod 232 away from the fixed rod 231. The test head 234 is slidably connected to a locking block 235 that fits the inner wall of the external bottle mouth through a T-slot 2341 provided on its circumferential outer surface. A locking hole 2351 is provided on the side of the locking block 235 close to the T-slot 2341, and a return spring 2352 connected to the groove on the inner wall of the T-slot 2341 is provided inside the locking hole 2351.

[0048] A first semi-circular spherical groove 2342 is provided at the top of the inner wall of the T-shaped groove 2341, and a vertical hole 2343 connected to the interior of the first semi-circular spherical groove 2342 is provided on the upper surface of the test head 234. The detection rod 232 is slidably connected to the counterweight plate 236 through a protrusion 2321 arranged on its circumferential outer surface, and a lifting rod 237 sliding with the inner wall of the vertical hole 2343 is fixedly connected to the outer surface of the counterweight plate 236, and a lifting ball 238 fitting with the inner wall of the first semi-circular spherical groove 2342 is fixedly connected to the outer surface of the lifting rod 237 through a connecting rod.

[0049] A square groove 2353 is formed inside the locking block 235 and fits with the outer surface of the lifting rod 237. The bottom end of the lifting rod 237 passes through the vertical hole 2343 and extends into the square groove 2353. A second semicircular spherical groove 2354 is formed on the upper surface of the locking block 235 and fits with the spherical surface of the lifting ball 238. The second semicircular spherical groove 2354 and the square groove 2353 are connected.

[0050] The diameter of the test head 234 is smaller than the inner diameter of the outer bottle mouth, the diameter of the counterweight plate 236 is larger than the inner diameter of the outer bottle mouth, the horizontal section length of the square groove 2353 is much larger than the horizontal section length of the vertical hole 2343, and the edges of the first semi-circular spherical groove 2342 and the second semi-circular spherical groove 2354 are both designed with arc edges.

[0051] The outer surface of the casing 11 is fixedly connected with a recovery box 111 through a frame, and a recovery hole 112 is opened on the side of the recovery box 111 close to the shaft 21. The recovery box 111 is rotatably connected with a roller 114 that fits with the outer surface of the counterweight plate 236 through a bracket 113 set on its outer surface.

[0052] refer to Figure 2-11In actual applications, the caps of bottled food are usually automatically capped by a capping machine (the equipment is usually equipped with a robotic arm and a vacuum adsorption system), and the capping machine is used to tighten the caps. However, during the mass production process, there are still a few bottles with missing caps or leaking caps. During the automatic transportation process, they cannot be quickly selected, which can easily lead to oxidation of the food in the bottle, leakage of food odors and pollution of the surrounding environment, and even leakage of the food in the bottle (the transfer and packaging process of bottled food without caps will cause food to spill);

[0053] In order to overcome the above-mentioned defects, the present invention designs a food detection and conveying equipment (the present invention takes one group as an example, and multiple groups can be installed in the actual production process. Secondly, the present invention is mainly aimed at the detection and conveying of solid bottled food).

[0054] In practical application, bottled food delivery:

[0055] Start the driving unit 13 on the conveying part 1 to drive the conveying chain 12 to do reciprocating cyclic motion. The automated conveying equipment before the bottled food, such as an automated conveying line, a robot, etc., can quickly convey the bottled food to the designated position of the conveying chain 12 (the interval time of adjacent bottled foods is the same). Then, the conveying chain 12 drives the bottled food to be slowly conveyed forward. When the bottled food is conveyed to the workstation of the positioning part 3, the driving box 31 drives the driving wheel 32 to rotate, driving the conveyor belt 33 to reciprocate. Since the outer surface of the conveyor belt 33 is provided with a plurality of groups of bonding grooves, when the bottled food passes near the conveyor belt 33, the bottled food is stuck into the corresponding bonding grooves one by one. At the same time, the outer surface of the bottled food is bonded with the circumferential outer surface of the smooth rod 34.

[0056] Among them, the functions of the smooth rod 34 are: first, to keep the bottled food always in the center of the conveyor (one set is provided at the top and the bottom), which is convenient for the subsequent accurate detection of the bottle cap detection part 23; second, to cooperate with the conveyor belt 33 to clamp and position the bottled food; third, to reduce the friction during the conveying of the bottled food (small contact area). The functions of the conveyor belt 33 (including the fitting groove): first, with the help of its own fitting groove, the bottled food can be quickly positioned and fitted to the smooth rod 34 (there is a certain deviation in the loading of the previous automated conveying equipment), which is conducive to the accurate positioning of the bottle cap detection part 23; second, the conveyor belt 33 clamps and conveys the bottled food, which is mainly used to overcome the force of the subsequent bottle cap detection part 23 to prevent the bottled food from tilting or tipping over.

[0057] In practical application, bottled food testing:

[0058] The driving unit 13 drives the shaft 21 to rotate with the help of the transmission box 131, drives the rotating frame 22 to rotate clockwise, and drives the bottle cap detection member 23 to rotate synchronously. When the bottle cap detection member 23 rotates to the bottom, the bottle cap detection member 23 is about to contact the corresponding bottled food, and this bottled food has been locked by the conveyor belt 33 and the smooth rod 34.

[0059] If the bottled food has a lid, the test head 234 on the bottle cap detection member 23 will start to rotate and fall to fit the upper surface of the bottle cap. As the bottled food continues to move forward, the test head 234 always fits the upper surface of the bottle cap and moves synchronously with it. At the same time, the upper surface of the bottle cap generates an upward thrust on the test head 234, driving the detection rod 232 to slide along the outer surface of the circumference of the fixed rod 231, and the strong spring 233 is compressed and elastically deformed (when the detection rod 232 rotates to a vertical downward state, the deformation of the strong spring 233 is the largest). When the test head 234 passes the lowest point, the detection rod 232 begins to gradually reset along the outer surface of the circumference of the fixed rod 231 until the test head 234 and the bottled food are separated (during the detection process, if the bottled food has a lid, the two are only briefly attached and will not cause any impact on the bottled food), and the bottled food with a lid falls into the next process.

[0060] If the bottled food has no lid, the test head 234 on the bottle cap detection member 23 will start to rotate and fall into the bottle mouth. As the bottled food continues to move forward, the test head 234 and the locking block 235 begin to extend into the bottleneck (initially, the locking block 235 is limited by the lifting ball 238, and the four groups of locking blocks 235 are all in a "retracted state". Even if the counterweight plate 236 rotates to the top, its gravity cannot drive the lifting ball 238 out of the second semicircular ball groove 2354). When the test head 234 and the locking block 235 rotate toward the lowest point, the bottle mouth begins to contact the counterweight plate 236 and generates an upward thrust on the counterweight plate 236 (the strong spring 233 remains basically unchanged and can also be used for buffering). The counterweight plate 236 slides upward along the outer surface of the protrusion 2321 for a short distance, driving the lifting rod 237 to slide upward along the inner wall of the square groove 2353 and the vertical hole 2343 for a short distance, driving the lifting ball 238 to disengage from the second semicircular ball groove 2354 and to be stuck in the first semicircular ball groove 2342. At the same time, the locking block 235 is subjected to the elastic force of the reset spring 2352, and the locking block 235 quickly slides outward along the inner wall of the T-slot 2341 (the lifting rod 237 can "relatively slide" along the inner wall of the square slot 2353 to limit the locking block 235), and the four sets of locking blocks 235 are quickly unfolded and attached to the inner wall of the bottle body. At this time, the four sets of locking blocks 235 are all in the unfolded state, and the lifting ball 238 will not be able to reset without the action of external force, and then the four sets of locking blocks 235 will always be combined with the bottle body into a whole. As the locking block 235 passes the lowest point, the uncovered bottled food will rotate synchronously with its corresponding locking block 235, realizing the automatic selection of uncovered bottled food.

[0061] In summary, the bottle cap detection member 23 of the present invention has at least the following advantages:

[0062] Advantage 1: For bottled food with a lid, the test head 234 and the bottle lid only fit together for a short time and will not cause any impact on the bottled food;

[0063] Advantage 2: Bottled foods without caps can be automatically picked out at the first opportunity;

[0064] Advantage three: You can select bottled foods one by one to avoid missing any;

[0065] Advantage 4: the counterweight plate 236 is fitted at the bottle mouth, and the four sets of locking blocks 235 are fitted on the inner wall of the bottle body, and the two blocks the bottle mouth of the uncovered bottled food, "acting as a bottle cap", which can prevent the solid objects inside the uncovered bottled food from spilling during the rotation process;

[0066] Advantage five: in cooperation with the subsequent roller 114, the bottle cap detection member 23 and the uncovered bottled food can be automatically separated, the uncovered bottled food can be removed immediately, and the bottle cap detection member 23 can be automatically reset simultaneously.

[0067] What needs to be emphasized in the present invention is that, in order to remove the uncovered bottled food as soon as possible, the present invention is further provided with a roller 114 , which can realize the automatic separation of the bottle cap detection member 23 and the uncovered bottled food, and the automatic resetting of the bottle cap detection member 23 .

[0068] Specifically, when the bottle cap detection member 23 and the uncovered bottled food rotate synchronously toward one side of the recycling box 111 (across the horizontal plane, the uncovered bottled food is in an inclined state, which is convenient for recycling), the counterweight plate 236 on the bottle cap detection member 23 begins to contact the outer surface of the circumference of the roller 114, and the roller 114 rotates synchronously with the counterweight plate 236. At the same time, the outer surface of the circumference of the roller 114 generates a thrust on the counterweight plate 236, driving the lifting rod 237 to slide inward along the inner wall of the square groove 2353 and the vertical hole 2343, driving the lifting ball 238 to start to disengage from the second semicircle The ball groove 2354 slides inside. Since the edges of the first semicircular ball groove 2342 and the second semicircular ball groove 2354 are both designed with arc edges, the lifting ball 238 can overcome the "short-distance misalignment" between the first semicircular ball groove 2342 and the second semicircular ball groove 2354 with the help of the arc edges, until the lifting ball 238 is stuck in the second semicircular ball groove 2354 again, driving the four groups of locking blocks 235 to quickly "retract and reset" to carry out the next group of inspections. The uncovered bottled food is restricted by the recycling hole 112 and falls into the recycling box 111 (which can be cleared at the first time).

[0069] See also Figure 1 Another aspect of the present invention provides a method for using a food inspection and conveying device, comprising the following steps:

[0070] S1: Bottled food conveying, the bottled food is smoothly transferred to the conveyor chain 12 through the automated conveyor line, and then the conveyor chain 12 drives the bottled food evenly distributed above it to slowly convey forward, and then the fitting groove on the conveyor belt 33 begins to clamp the corresponding bottled food and convey it forward smoothly;

[0071] S2: Bottled food detection. As the rotating frame 22 drives the bottle cap detection member 23 to make a circular motion, when the bottled food contacts the bottle cap detection member 23, if the bottled food has a cap, the bottle cap detection member 23 cannot extend into the bottled food and combine with it. If the bottled food has no cap, the bottle cap detection member 23 will extend into the bottled food and combine with it.

[0072] S3: Recycling of bottles without caps, the cap detection member 23 drives the bottled food without caps to do circular motion synchronously, and when the cap detection member 23 contacts the outer surface of the roller 114, the roller 114 will push the cap detection member 23 to quickly reset, and the bottled food without caps will be selected and transferred to the recycling box 111;

[0073] S4: Repeat S1 to S4 to inspect, convey and recycle the next group of bottled foods.

[0074] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A food inspection and conveying device, characterized in that: include: A conveying part, the conveying part comprises a casing, a conveying chain for transferring external bottled food is arranged in the space enclosed by the casing, and a driving unit for transmission with the conveying chain is arranged on the side of the casing; The detection part includes a shaft, a transmission box rotatably connected to the shaft is arranged on the top of the driving unit, and the shaft is fixedly connected to a plurality of groups of bottle cap detection members through a rotating frame sleeved on the outer surface of the shaft; The bottle cap detection member includes a fixed rod, one end of the fixed rod close to the shaft rod is fixedly connected to the outer circumferential surface of the rotating frame, the outer circumferential surface of the fixed rod is slidably connected to the detection rod, and the end of the fixed rod away from the rotating frame is provided with a strong spring connected to the inside of the detection rod; It also includes a positioning part, which includes a driving box, a driving wheel is rotatably connected to the top of the driving box, a pair of conveyor belts are sleeved on the outer circumference of the driving wheel and are engaged with the outer bottle body, and a smooth rod is fixedly connected to the inner wall of the housing and is in contact with the outer bottle body; The end of the detection rod away from the fixed rod is fixedly connected with a test head, and the test head is slidably connected with a locking block that fits with the inner wall of the external bottle mouth through a T-shaped groove provided on the outer surface of the circumference of the test head, and a locking hole is provided on the side of the locking block close to the T-shaped groove, and a reset spring connected with the groove of the inner wall of the T-shaped groove is arranged inside the locking hole; A first semicircular spherical groove is provided on the top of the inner wall of the T-shaped groove, a vertical hole connected to the inside of the first semicircular spherical groove is provided on the upper surface of the test head, the detection rod is slidably connected to a counterweight plate via a convex block arranged on the outer surface of its circumference, a lifting rod sliding with the inner wall of the vertical hole is fixedly connected to the outer surface of the counterweight plate, and a lifting ball in contact with the inner wall of the first semicircular spherical groove is fixedly connected to the outer surface of the lifting rod via a connecting rod; The locking block has a square groove inside that fits with the outer surface of the lifting rod, the bottom end of the lifting rod passes through the vertical hole and extends into the square groove, the upper surface of the locking block has a second semicircular spherical groove that fits with the spherical surface of the lifting ball, and the second semicircular spherical groove is connected to the square groove; The diameter of the test head is smaller than the inner diameter of the outer bottle mouth, the diameter of the counterweight plate is larger than the inner diameter of the outer bottle mouth, the horizontal section length of the square groove is much larger than the horizontal section length of the vertical hole, and the edges of the first semi-circular spherical groove and the second semi-circular spherical groove are both designed with arc edges.

2. A food inspection and conveying device according to claim 1, characterized in that: The outer surface of the casing is fixedly connected with a recovery box through a frame, a recovery hole is opened on the side of the recovery box close to the shaft rod, and the recovery box is rotatably connected with a roller that fits with the outer surface of the counterweight plate through a bracket arranged on its outer surface.

3. The method for using a food inspection and conveying device according to claim 2, characterized in that: The steps include: S1: Bottled food conveying: The bottled food is smoothly transferred to the conveyor chain through the automated conveyor line. Then, the conveyor chain drives the bottled food evenly distributed above it to slowly convey forward. Then, the fitting groove on the conveyor belt begins to clamp the corresponding bottled food and convey it forward smoothly. S2: Bottled food detection. As the rotating frame drives the bottle cap detection piece to make a circular motion, when the bottled food contacts the bottle cap detection piece, if the bottled food itself has a cap, the bottle cap detection piece cannot extend into the bottled food and combine with it. If the bottled food itself has no cap, the bottle cap detection piece will extend into the bottled food and combine with it. S3: Recycling of bottles without caps. The cap detection element drives the bottled food without caps to do circular motion synchronously. When the cap detection element contacts the outer surface of the roller, the roller will push the cap detection element to reset quickly. The bottled food without caps is selected and transferred to the recycling bin. S4: Repeat S1 to S4 to inspect, convey and recycle the next group of bottled foods.

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