Integrated equipment and method for pressing and quality detection of bottle caps with hanging ears

Abstract

The application discloses a kind of integrated equipment and method of press fitting and quality detection of bottle cap with lug combination, equipment includes main conveying belt, lug outer cover feeding mechanism to bottle body and press fitting and detection integrated device;Integrated device contains press fitting mechanism, flatness detection mechanism and compression strength detection mechanism.Flatness detection mechanism and press fitting mechanism share same drive source, in press fitting stroke, with the difference value of the upper movement of two horizontal pressing plates, the flatness of the upper end surface of sleeve part is detected synchronously, and the automatic stop pressure of pressure sensor is triggered by hinged corner resistance;Compression strength detection mechanism, after press fitting is completed, with torsional spring pre-tightening pressure application shaft transversely across lug part suspension hole, reuse bottle body downward reset stroke to apply upward separating force to lug part, and the bonding strength is determined by compression displacement sensor.Three mechanisms are integrated in the same station and work cooperatively, without independent detection station, the production rhythm is compressed, and the assembly qualification rate of thin-wall combination bottle cap is improved.

Description

Technical Field

[0001] This invention relates to the field of bottle cap assembly technology, and in particular to an integrated device and method for pressing and quality inspection of bottle caps with hanging loops. Background Technology

[0002] See Figure 1 This is a combination bottle cap suitable for functional beverages, consisting of two parts: a main cap that seals tightly with the bottle body, and an outer cap with a hook that is press-fitted onto the outer periphery of the main cap. The outer cap has a sleeve portion and a hook portion with a hanging hole, allowing the beverage bottle to be hung on external objects such as backpacks or belts for easy carrying and access outdoors. On the production line, the main cap is first sealed to the bottle body, and then the outer cap with the hook is press-fitted onto the outer periphery of the main cap at a subsequent station.

[0003] To reduce raw material usage and save overall costs from the source, these composite bottle caps typically employ a design with a thinner overall wall thickness. However, wall thinning introduces assembly reliability issues: traditional thick-walled shells can achieve micro-alignment correction during press-fitting through their own micro-elastic deformation, providing a certain tolerance for minor assembly deviations; thinner caps, on the other hand, lack rigidity, significantly reducing their self-adaptive tolerance and making them prone to two types of defects—uneven press-fitting of the outer cap with the lug (the upper end face of the sleeve is skewed relative to the main cap), and weak pressing and insufficient bonding strength between the outer cap with the lug and the main cap. The former affects the appearance and sealing standard, while the latter may cause the outer cap with the lug to detach under load. Therefore, for composite bottle caps with thinned walls, online detection of the press-fitting flatness and bonding strength during press-fitting has become a necessary step to ensure assembly qualification rates.

[0004] Chinese patent CN110422811B discloses a bottle cap sealing and packaging pressing mechanism. This mechanism uses a top cylinder to drive a suction cup to press down the bottle cap, and a side presser, rotating with a turntable, tightly seals the bottle cap's sides. However, this mechanism only completes the assembly of the bottle cap and bottle body and does not integrate online detection of the pressing quality. When used for composite bottle caps with thinner walls, it cannot immediately detect and intervene in defects such as sleeve misalignment and insecure pressing during the pressing process. Post-processing inspection requires a separate testing station, which increases equipment footprint and production cycle time, reduces overall machine capacity, and allows defective parts to continue to be pressed, potentially exacerbating assembly misalignment, causing vibration, and increasing component wear. Furthermore, no online detection method for the pressing strength between the outer cap and the main cap is disclosed in the prior art. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated equipment and method for pressing and pressing quality inspection of bottle caps with ear loops. Without adding an independent inspection station or reducing the production cycle, the flatness of the pressing is simultaneously detected while the outer ear loop cap is being pressed, and the pressing strength between the outer ear loop cap and the main cap is detected in real time, thereby ensuring the assembly qualification rate of thin-walled bottle caps.

[0006] To solve the above problems, the present invention adopts the following solution: An integrated device for pressing and pressing quality inspection of bottle caps with hanging loops, the bottle caps comprising a main cap that seals with the bottle body and an outer cap with hanging loops that press-fits with the main cap, the outer cap having a sleeve portion and a hanging loop portion with a hanging hole, comprising: a main conveyor belt for conveying bottles whose main caps have been sealed with the bottle body; a feeding mechanism for supplying and placing the outer caps on the upper end of the bottles on the main conveyor belt; and an integrated pressing and inspection device, located downstream of the feeding station along the conveying direction of the main conveyor belt, comprising a pressing mechanism, a flatness inspection mechanism, and a pressing strength inspection mechanism. The pressing mechanism is used to apply downward pressure to the outer cover of the lug to press it onto the outer periphery of the main cover; the flatness detection mechanism is synchronously driven by the same driving power source of the pressing mechanism, and synchronously detects the flatness of the upper end face of the sleeve portion of the outer cover of the lug after pressing during the pressing stroke; the pressing strength detection mechanism applies an upward force to the outer cover of the lug after pressing, so that the outer cover of the lug tends to separate from the main cover, in order to detect the bonding strength between the two.

[0007] Therefore, the flatness test is completed synchronously during the pressing stroke using the same drive power source of the pressing mechanism, without the need for additional test drive and independent test station; the pressing strength test is carried out immediately after the pressing is completed. The three work together to compress the production cycle and avoid reducing the overall production efficiency due to the addition of a test step.

[0008] Furthermore, the pressing mechanism includes a lifting and positioning component and a pressing component; the lifting and positioning component includes two supporting lifting plates respectively clamping on both sides of the bottle neck, a clamping and pushing cylinder driving the two supporting lifting plates to move towards or away from each other, and a lifting cylinder driving the two clamped supporting lifting plates to rise and fall; the pressing component includes a pressing seat located above the outer cap of the hanging ear and a pressing cylinder connected to the upper end of the pressing seat. By using the lifting cylinder to detach the bottle from the main conveyor belt, it is possible to avoid the bottle slipping under pressure and the main conveyor belt deforming under stress during pressure application.

[0009] Furthermore, the pressing base is hollow at both ends along the conveying direction to form a detection station slot, and the ear portion of the ear cover can be placed in the detection station slot through relative lifting and lowering movement with the pressing base; the flatness detection mechanism and the pressing strength detection mechanism are both located in the detection station slot, thereby integrating pressing, flatness detection and pressing strength detection into the same station.

[0010] Furthermore, the flatness detection mechanism includes a pressure plate assembly disposed within the detection station slot. Each pressure plate assembly includes two horizontal pressure plates positioned on both sides of the lug and above the sleeve. The two horizontal pressure plates are elastically connected to the side wall via springs installed longitudinally within mounting slots on the side wall of the detection station slot. When the pressing cylinder drives the pressing seat downward, it simultaneously causes the two horizontal pressure plates to press against the upper end faces of the sleeve on both sides of the lug. Flatness is determined by detecting the upward movement of the two horizontal pressure plates. When the upward movement of the two horizontal pressure plates is the same, it indicates that the upper end face of the sleeve is flat; otherwise, it indicates that there is a deviation.

[0011] Furthermore, each of the horizontal pressure plates is equipped with a mounting groove and a spring at both ends. A vertical sliding plate is hinged to the upper end of each horizontal pressure plate via a hinge seat. The vertical sliding plate is slidably mounted in the mounting groove and passes through its lower end. When the upper surface of the sleeve is misaligned, a rotation angle is generated between the vertical sliding plate and the hinge seat. The resistance generated by this rotation angle is greater than the elastic force generated by the maximum compression of the spring. A pressure sensor is installed on the pipeline of the pressing cylinder. When the resistance generated by the rotation angle is sensed, the pressing stops. Thus, unilateral misalignment can be detected in real time during the pressing stroke, and pressing can be automatically stopped to prevent defective parts from continuing to be pressed, which could lead to misalignment, vibration, and wear of the mechanism.

[0012] Furthermore, the pressing strength testing mechanism includes a pressing assembly disposed in the testing station slot. Each pressing assembly includes two connecting top blocks that are slidably disposed on the two side walls of the testing station slot, a pressing cylinder that drives the two connecting top blocks to move toward the hanging ear, and a pressing rotating shaft that is hinged in the inner hinge groove of the two connecting top blocks. The hinge end of the pressing rotating shaft is equipped with a torsion spring with a pre-applied pre-tightening torque. The torsion spring causes the pressing rotating shaft to have an upward flipping tendency. The pressing rotating shaft is kept horizontal by the limit of the inner wall of the hinge groove so as to pass through the suspension hole.

[0013] Furthermore, after the pressure-applying shaft passes through the suspension hole, the bottle body is driven downward by the lifting cylinder, causing the inner wall of the suspension hole to abut against the pressure-applying shaft. The reverse torque of the torsion spring applies an upward force to the hanging ear portion through the pressure-applying shaft. The integrated pressing and detection device is also equipped with a pressing displacement sensor located above the main conveyor belt near the end of the conveying direction. This sensor is used to detect the displacement change of the hanging ear cap after the bottle body falls back onto the main conveyor belt to determine whether the pressing strength is qualified. Thus, by using the suspension hole of the bottle cap itself as the force application point and reusing the downward movement of the bottle body (which is also the reset action of falling back onto the conveyor belt after detection) to apply the upward separation force, the structure is simple and saves reset time.

[0014] Another aspect of the present invention provides a pressing method for a bottle cap with a hanging loop and a pressing quality inspection method, comprising the following steps: S1, feeding: placing the hanging loop outer cap on the upper end of the bottle body after the main cap and the bottle body have been sealed together; S2, pressing and flatness detection simultaneously: using the same driving power source to drive the pressing mechanism to press the hanging loop outer cap down onto the outer periphery of the main cap, and simultaneously detecting the flatness of the upper end face of the sleeve after pressing during the pressing stroke, stopping the pressing if it is not qualified; S3, pressing strength detection: after pressing, applying an upward force to the hanging loop outer cap to make it tend to separate relative to the main cap, and detecting the bonding strength between the two; S4, rejection and release: rejecting bottles that are not qualified in terms of flatness or pressing strength, and sending qualified bottles to the finished product station.

[0015] Further, in step S2, two horizontal pressure plates located on both sides of the hanging ear portion, which move down synchronously with the pressing, press against the upper end face of the sleeve portion, and detect the upward movement of the two horizontal pressure plates: if the upward movement is the same, the flatness is deemed qualified; if they are different, the deviation is deemed to exist. When the deviation causes the vertical sliding plate hinged at the upper end of the horizontal pressure plate to rotate with the hinge seat, and the resistance of this rotation is sensed by the pressure sensor on the pressing drive pipeline, the pressing is stopped and the batch of bottles is rejected.

[0016] Further, in step S3, the pressure-applying shaft is made to pass through the suspension hole, and then the bottle is driven to move downward so that the inner wall of the suspension hole abuts against the pressure-applying shaft. The reverse torque of the torsion spring at the hinge end of the pressure-applying shaft applies an upward force to the hanging ear. The downward movement of the bottle and the reset action of the bottle falling back onto the conveyor belt after the detection are the same action. After the bottle falls back onto the conveyor belt, the displacement change of the hanging ear cover relative to the main cover is detected by the pressure displacement sensor to determine whether the pressure strength is qualified.

[0017] Furthermore, in step S1, the ear-shaped outer cap is supplied to the outer cap feeding station via the secondary conveyor belt, and the clamping plate of the feeding device picks up, moves and gently presses the ear-shaped outer cap onto the outer periphery of the main cap of the bottle.

[0018] The beneficial effects of this invention are as follows: Firstly, pressing and flatness testing are integrated into the same drive power source and completed synchronously in the same pressing stroke. Then, pressing strength testing is performed immediately after pressing is completed. All three are integrated into the same workstation for collaborative operation, eliminating the need for additional testing stations and drives. This reduces the production cycle and avoids reducing the overall machine capacity due to the addition of testing steps.

[0019] Secondly, the flatness detection uses the difference in the upward displacement of the two horizontal pressure plates to determine the skewness on both sides, and the pressure sensor is automatically stopped by the angular resistance between the vertical slide plate and the hinge seat. This can be judged and intervened in real time during the pressing process to prevent thin-walled defective parts from continuing to be pressed, which would lead to assembly misalignment, severe vibration, uneven load and equipment wear and damage.

[0020] Third, the pressing strength test uses the bottle cap's own suspension hole as the force application point. The pressure application shaft, which is pre-tightened by a torsion spring, passes through the suspension hole and reuses the downward movement of the bottle body (which is also the reset action of falling back to the conveyor belt after the test) to apply an upward separation force. The structure is simple, the force is evenly applied, and the reset cycle is saved, further improving the work efficiency.

[0021] Fourth, for the composite bottle caps that have reduced wall thickness and decreased adaptive fault tolerance in order to reduce costs, this invention achieves online detection and defect rejection of pressing flatness and pressing strength without sacrificing production capacity, taking into account both raw material cost reduction and assembly quality, and improving assembly qualification rate and equipment operation stability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the functional beverage bottle in this invention; Figure 2 This is a schematic diagram of the integrated device of the present invention; Figure 3 This is a schematic diagram of the structure at the outer cover loading station of the present invention; Figure 4 yes Figure 3 A magnified view of a section at point I; Figure 5 This is a schematic diagram of the integrated pressing and testing device of the present invention; Figure 6 This is a partial structural diagram of the beverage bottle and the integrated filling and testing device of the present invention. Figure 7 This is a schematic diagram of the structure of the beverage bottle of the present invention during the pre-flatness detection and pressing process. Figure 8 This is a schematic diagram of the flatness detection mechanism of the present invention when the combined bottle cap is skewed. Figure 9 This is a schematic diagram of the beverage bottle of the present invention and the two process states for testing the compression strength. Figure 10 This is a schematic diagram of the structure of the combined bottle cap of the present invention during the compression strength test; Figure 11 This is a schematic diagram illustrating the upward force generated by the pressure-adjusting rotating shaft of the present invention on the outer cover of the lug.

[0023] Figure label: Combination bottle cap 01, bottle body 02, main cap 011, outer cap with hanging ear 012, toothed groove 031, rack 032, sleeve part 0121, hanging ear part 0122, suspension hole 0123, main conveyor belt 10, limiting conveyor channel 11, auxiliary conveyor belt 20, outer cap loading station 30, pressing and testing integrated device 40, loading device 31, loading frame 311, lifting seat 312, lifting cylinder 313, clamping plate 314, sliding drive assembly 315, clamping cylinder 316, pressing mechanism 41, flatness detection mechanism 42, pressing strength detection mechanism 43, lifting and yielding assembly 411, pressing... Assembly component 412, support lifting plate 4111, clamping and pushing cylinder 4112, lifting displacement seat 4113 4113, lifting cylinder 4114, pressing seat 4121, pressing cylinder 4122, detection station slot 421, installation slot 4211, pressure plate assembly 422, horizontal pressure plate 4221, spring 4222, hinge seat 4231, vertical slide plate 4232, pressure application assembly 431, connecting top block 4311, pressing cylinder 4312, pressure application shaft 4313, torsion spring 4314, hinge slot 4315, pressing displacement sensor 432, rejection cylinder 51, rejection slide 52. Detailed Implementation

[0024] Example:

[0025] This embodiment provides an integrated device for pressing and inspecting the pressing quality of a bottle cap with a loop handle. The bottle cap 01 is suitable for functional beverages and includes a main cap 011 that rotates and seals with the bottle body 02, and an outer cap 012 with a loop handle that presses into the main cap 011. The outer cap 012 allows it to be carried and hung on the outside of a backpack or similar object for convenient carrying during outdoor activities such as fieldwork, mountaineering, and hiking. The integrated device provided in this embodiment is used to press and assemble the outer cap 012 after the bottle body 02 and the main cap 011 have been sealed and rotated, and simultaneously inspects the flatness of the outer cap pressing and the firmness of the connection between the outer cap and the main cap 011.

[0026] The integrated device is used in functional beverages paired with combination bottle cap 01, for reference. Figure 1 The combination bottle cap 01 includes a main cap 011 and an outer cap with a loop handle 012, see reference. Figure 2This equipment includes: a main conveyor belt 10, with partitions on both sides forming a limited conveying channel 11 for stably conveying the bottle body after the main cap 011 and bottle body 02 have been sealed and rotated; a secondary conveyor belt 20, on which hanger caps 012 are conveyed, and is laterally arranged on the main conveyor belt 10 and intersects with it at intervals, forming an outer cap loading station 30 at the intersection, where the hanger caps 012 are loaded onto the upper part of the bottle body; and a pressing and testing integrated device 40, arranged along the conveying direction of the main conveyor belt 10 and located behind the outer cap loading station 30, for pressing and fitting the hanger caps 012 and the main cap 011 and for pressing quality testing.

[0027] The outer cover loading station 30 is equipped with a loading device 31 (such as...). Figure 2 (As shown), Reference Figure 3 , Figure 4 It can process multiple sets of beverage bottles simultaneously in a single operation, including a feeding frame 311. The feeding frame 311 is equipped with a lifting seat 312 and a lifting cylinder 313 to realize its up and down movement. The lifting seat 312 is slidably connected to a set of opposing clamping plates 314. The clamping plates 314 realize their reciprocating movement between the hanging ear cap 012 and the bottle body through a sliding drive component 315. Each of the two clamping plates 314 is equipped with a clamping cylinder 316 that can drive its movement to realize the clamping or releasing of the hanging ear cap (the sliding drive component is an existing mature technology and can be realized through a screw structure, cylinder, etc., and the power part is not shown in the figure).

[0028] The feeding process of the outer cover 012 is as follows: Starting with the clamping cylinder 316 having just completed the previous round of feeding, firstly, the clamping cylinder 316 drives the two clamping plates 314 to move away from each other, thereby detaching them from the beverage bottle. Then, the lifting cylinder 313 drives the lifting seat 312 and the clamping plates 314 to move upward. Next, the sliding drive assembly 315 is activated to move a preset distance, so as to move the two clamping plates 314 to the top of both sides of the ear cover 012. Then, the lifting seat 312 is driven downward in sequence, the two clamping plates 314 are driven to move relative to each other to clamp the ear cover 012, the lifting seat 312 is moved upward to move the ear cover 012 towards the bottle body to be directly above it, and the lifting seat 312 is moved downward to gently press the ear cover 012 onto the bottle body. During this process: after the feeding is completed and the clamping plate 314 moves away from the bottle and upwards, the main conveyor belt 10 will transport the batch of beverage bottles to the next station, and at the same time transport the next batch of bottles to this feeding station; after the clamping plate 314 clamps the ear cap 012 and moves it to the bottle, the auxiliary conveyor belt 20 will transport the next batch of ear cap 012 to this feeding station.

[0029] The integrated pressing and testing device 40 is the core innovative design of this invention. (Refer to...) Figure 5This includes a pressing mechanism 41, a flatness detection mechanism 42, and a pressing strength detection mechanism 43 (such as...). Figure 6 As shown), the three work together to perform flatness testing while pressing. Then, they immediately perform pressing strength testing when the pressing is completed and the test is passed. This reduces the production cycle and avoids reducing the overall production efficiency due to the addition of testing steps. The number of beverage bottles that can be processed in each operation is the same as that of the feeding device 31. The specific structure of the three is as follows.

[0030] The press-fit mechanism 41 presses and secures the outer cover 012 to the outer periphery of the main cover 011 by applying downward pressure, thereby achieving a press-fit fit between the two. (Refer to...) Figure 1 The outer peripheral wall of the main cover 011 is evenly provided with multiple toothed grooves 031, and the inner peripheral wall of the ear cover 012 is provided with multiple toothed racks 032. Each toothed rack 032 is spaced apart by an equal number of toothed grooves 031 and is driven by the pressing mechanism 41 to be inserted into the corresponding toothed groove 031 to achieve pressing. The two are interference fit.

[0031] Specifically, refer to Figure 5 The pressing mechanism 41 includes: The lifting and positioning assembly 411 includes two supporting lifting plates 4111, each connected to a clamping and pushing cylinder 4112, which can drive the lifting plates 4111 to move downwards, so that the two supporting lifting plates 4111 are stably clamped at the neck position of the upper part of the beverage bottle and abut against the protruding upper edge of the neck. The lower ends of the two supporting lifting plates 4111 are also connected to lifting displacement seats 4113, and the lower end of the lifting displacement seats 4113 is provided with a lifting cylinder 4114. Therefore, the two supporting lifting plates 4111 in the clamping state can be driven to move upwards synchronously through the lifting cylinder 4114 and the lifting displacement seats 4113, so as to drive the beverage bottle to detach from the main conveyor belt 10, so as to avoid the bottle body from slipping under pressure and the main conveyor belt 10 from deformation under force when pressure is applied later. The press-fit assembly 412 includes a press-fit base 4121 and a press-fit cylinder 4122 connected to its upper end. The press-fit base 4121 is located directly above the ear cover 012. Therefore, the press-fit base 4121 can be driven to move downward by the press-fit cylinder 4122 to apply downward pressure to the ear cover 012, thereby achieving the press-fitting of the ear cover 012 and the main cover 011.

[0032] To reduce the production cost of functional beverages from the source, the functional beverage bottle cap 01 in this invention is designed with a thinner wall thickness to reduce the amount of raw materials used. Traditional thick-walled shells can achieve micro-alignment correction during press-fitting by relying on their own micro-elastic deformation, but the thinned bottle cap has insufficient rigidity, reduced self-adaptive fault tolerance, and poor ability to correct assembly micro-deviations. Therefore, a flatness detection mechanism 42 and a pressing strength detection mechanism 43 are provided to ensure the assembly qualification rate.

[0033] The flatness detection mechanism 42 uses the upper end face of the sleeve portion 0121 of the outer cover 012 as the detection reference to determine the flatness of the combined bottle cap 01 after pressing. It cooperates with the pressing mechanism 41 (e.g., Figure 7 (As shown), Reference Figure 6 , Figure 7 The pressing base 4121 is hollow at both ends along the conveying direction and forms a detection station groove 421. The detection station groove 421 is located directly above the limiting conveying channel 11. The ear part 0122 of the ear cover 012 can be placed in the station groove through relative lifting and lowering movement with the pressing base 4121, which facilitates the subsequent pressing base 4121 to apply pressure to the sleeve part 0121 for flatness detection.

[0034] Specifically, refer to Figure 6 , Figure 7 The flatness detection mechanism 42 includes multiple sets of pressure plate assemblies 422, corresponding to multiple combined bottle caps 01 processed in a single batch. Each set of pressure plate assemblies 422 includes two horizontal pressure plates 4221 placed on both sides of the lug portion 0122 and located above the sleeve portion 0121. (Refer to...) Figure 8 , Figure 9 Two horizontal pressure plates 4221 are elastically connected to both sides of the detection station slot 421 by springs 4222. The springs 4222 are longitudinally installed in the mounting slots 4211 on the side wall of the detection station slot 421.

[0035] The principle for detecting the flatness of both sides of the ear loop 0122 is as follows: refer to Figure 7 The pressing cylinder 4122 drives the pressing seat 4121 to move downward, which in turn drives the multiple sets of pressing plate assemblies 422 connected to it to move downward synchronously, so that the two horizontal pressing plates 4221 press against the upper end face of the sleeve part 0121 on both sides of the lug part 0122. As the pressing seat 4121 continues to press down, the reference... Figure 8 The two horizontal pressure plates 4221 will move upward along the mounting groove 4211. At this time, the upward movement of the two horizontal pressure plates 4221 can be detected by setting a visual inspection lens on the outside or setting a displacement sensor in the mounting groove 4211. If they are the same, it means that the upper end face of the sleeve part 0121 on both sides of the lug part 0122 is in a horizontal state. If they are not the same, it means that there is a skew.

[0036] Furthermore, in order to achieve a more comprehensive inspection of the horizontal flatness, a single horizontal pressure plate 4221 is used to inspect the flatness of the upper end of the sleeve part 0121 on each side of the lug part 0122. The specific structure is as follows.

[0037] refer to Figure 9 Each of the horizontal pressure plates 4221 is equipped with two mounting slots 4211 and two springs 4222, located at both ends of the horizontal pressure plate 4221, respectively. (Refer to...) Figure 8 , Figure 9 The horizontal pressure plate 4221 is also hinged to the vertical sliding plate 4232 through the hinge seat 4231 at its upper end. When naturally stationary, the outer sidewalls of both are flush and coplanar. The vertical sliding plate 4232 is slidably installed in the mounting groove 4211 and passes through its lower end.

[0038] The principle for detecting the flatness of one side of the ear loop 0122 is as follows: refer to Figure 9 When the flatness of the upper surface of the sleeve portion 0121 on the side of the lug portion 0122 is qualified, the vertical slide plate 4232 and the hinge seat 4231 are in a natural static state. At this time, the drive pressing seat 4121 moves down, and the vertical slide plate 4232 and the hinge seat 4231 can smoothly pass through the mounting groove 4211 until the lower end of the pressing seat 4121 horizontally abuts against the upper end of the horizontal pressure plate 4221. This can be determined by the aforementioned visual inspection lens or the skew displacement sensor (neither of which is shown in the figure). When there is a skew, refer to... Figure 8 The vertical sliding plates 4232 on both sides will rotate with their corresponding hinge seats 4231, generating a rotation angle. At this time, as the mounting groove 4211 moves down to the hinge with a certain angle, the downward movement of the pressing seat 4121 is hindered. After the pressing cylinder 4122 senses the forward resistance through the pressure sensor set on its pipeline, it automatically stops with the dual determination of the visual inspection lens or the skew displacement sensor. At this time, the pressing stops and the subsequent inspection stops. The batch of beverages with defective products falls back onto the main conveyor belt 10 and is transported to the next process for batch rejection.

[0039] Furthermore, the resistance generated by the angle formed by the vertical slide plate 4232 and the hinge seat 4231 is greater than the elastic force generated by the maximum compression of the spring 4222. Only when the pressure sensor senses the resistance range generated by the corresponding angle will the entire batch be rejected. If only the visual inspection lens or the skew displacement sensor senses the skew change, the corresponding defective products will be marked, and the marked defective products will be rejected when they are transported to the rejection process.

[0040] During the flatness inspection process described above, the pressure plate assembly 422 is driven by the pressure cylinder 4122. Therefore, the inspection operation can be carried out simultaneously with the pressure operation. In actual production, the probability of flatness failure is extremely low. Therefore, even if a small number of defective parts are rejected in a single batch, it will not significantly affect the overall production capacity and raw material utilization rate. However, if defective parts are allowed to continue to be pressed, it will easily aggravate the misalignment of the assembly and the misalignment of the inspection mechanism, thereby causing severe vibration, uneven load, and wear and damage to equipment parts.

[0041] If the flatness test is qualified, the pressing can be completed smoothly. At this time, the pressing of the combined bottle cap 01 is completed. Then, the pressing strength testing mechanism 43 is started to test the connection strength between the ear cover 012 and the main cap 011. It applies an upward force to the ear cover 012 to make the two tend to separate. Then, it is detected that the two have separated displacement.

[0042] Specifically, refer to Figure 6 The compression strength testing mechanism 43 includes multiple sets of pressure application components 431, corresponding to multiple batch-processed combined bottle caps 01, for reference. Figure 9 , Figure 10 Each pressure application assembly 431 includes two connecting top blocks 4311, which are slidably embedded in the two side walls of the testing station slot 421 and are independently separated from the mounting slot 4211. Each connecting top block 4311 is connected to a pressure cylinder 4312 and can move vertically toward the hanging ear 0122 under its drive. The connecting top blocks 4311 on both sides are hinged to a pressure application shaft 4313 facing the hanging ear 0122 through the hinge groove 4315 on their inner side. The pressure application shaft 4313 can pass through the suspension hole 0123 of the hanging ear 0122 as the connecting top blocks 4311 move. (Refer to...) Figure 11 The pressure shaft 4313 rotates in the longitudinal plane, and its hinge end is equipped with a torsion spring 4314 with a pre-tightened torque. The resulting reverse torque acts upward, and this upward force is blocked by the inner wall of the hinge groove 4315, so that the pressure shaft 4313 can remain horizontal so as to pass through the suspension hole 0123.

[0043] Preferably, when the combined bottle cap 01 is pressed, the pressure shaft 4313 is aligned with the suspension hole 0123, so as to facilitate the immediate detection of the pressing strength by taking advantage of the completed pressing state, thereby saving detection time and improving efficiency.

[0044] Further, refer to Figure 10 The pressure-applying shaft 4313 is located at both ends of the inner wall of the suspension hole 0123 when it passes through the suspension hole 0123. This arrangement, together with the structure in which the hinge bearing points of the two pressure-applying shafts 4313 are located on both sides of the lug 0122, makes the force applied by the pressure-applying shafts 4313 more evenly distributed.

[0045] Furthermore, the press-fitting and testing integrated device 40 is also equipped with a press displacement sensor 432 (e.g., ...) on the outer edge of the frame near the end of the conveying direction. Figure 5 As shown in the figure, the pressure displacement sensor 432 is located directly above the limit conveying channel 11. It is used to detect the displacement between the outer cover 012 and the ear and compare it with the displacement of the qualified pressing strength to determine whether it is qualified or not.

[0046] The working process of the compression strength testing mechanism 43 is as follows: After the bottle cap 01 is pressed into place, the pressing cylinders 4312 on both sides are driven synchronously, causing them to drive the pressure shaft 4313 through the suspension hole 0123 via the connecting top block 4311. Figure 9 , Figure 10 (As shown); then, the lifting cylinder 4114 is activated, causing it to move the supporting lifting plate 4111 downwards, thereby moving the beverage bottle as a whole downwards until it contacts the inner wall of the hanging hole 0123 and the pressure shaft 4313. At this time, the reverse torque of the torsion spring 4314 can be transmitted to the hanging ear 0122 through the pressure shaft 4313. As the beverage bottle continues to move downwards for a preset stroke, the reverse torque gradually increases to the detection critical value of the pressing strength, completing the application of the ultimate load; then the pressing cylinder 4312 is driven to move in the opposite direction, causing the pressure shaft 4313 to disengage. Suspension hole 0123; then continue to start the lifting cylinder 4114 to move down, so that the beverage bottle falls back to the main conveyor belt 10. When it is about to fall back, start the clamping and pushing cylinder 4112 to release the beverage bottle; during the process of the beverage bottle being transported with the main conveyor belt 10, it passes through the pressure displacement sensor 432, so the displacement change is detected. If the displacement change exceeds the allowable range, it is judged as unqualified and the beverage bottle is marked. When it is transported to the rejection station, it is rejected. If the displacement change is within the allowable range, it is judged as qualified and sent to the subsequent finished product station.

[0047] The above-mentioned detection process also utilizes the downward movement of the beverage bottle to apply upward pressure and loading. After the downward movement and detection are completed, the steps of driving the beverage bottle to fall back onto the main conveyor belt 10 are integrated and synchronized, thus saving reset time and further improving work efficiency.

[0048] The rejection station is equipped with a rejection cylinder 51 (e.g., ...). Figure 5 (as shown) and the removal slide 52 (as shown) Figure 2 As shown), the limiting conveying channel 11 at this time has a notch that connects to the rejection slide 52. Therefore, the rejecting cylinder 51 can push the defective product through the notch and slide it down the rejection slide 52 to the defective product collection area.

[0049] The working process of this embodiment is roughly as follows: First, the bottles are conveyed using the limiting conveying channel 11 on the main conveyor belt 10. After being conveyed to the outer cap loading station 30, the loading device 31 simultaneously clamps and moves multiple ear-shaped outer caps 012 from the auxiliary conveyor belt 20 onto multiple bottles in a single batch, and gently presses them onto the outer periphery of the main cap 011 to complete the loading of the ear-shaped outer caps 012. Then, the bottles continue to be conveyed with the main conveyor belt 10 to the pressing and testing integrated device 40. At this time, the flatness test and pressing are performed simultaneously. The clamping and pushing cylinder 4112 and the lifting cylinder 4114 are activated in sequence to make the support lifting plate simultaneously clamp multiple beverage bottles and move them upward away from the main conveyor belt 10. Then, the pressing cylinder is activated. Cylinder 4122 drives the pressing seat 4121 to move downward, which enables the horizontal pressing plate 4221 to fully inspect the flatness of the upper surface of the sleeve part 0121. If there are unqualified products, the pressing stops and they are rejected at the subsequent rejection station. If all are qualified, the pressing of the ear cover 012 and the main cover 011 is completed simultaneously with the completion of the qualified inspection. Then, the pressing strength detection mechanism 43 is started and cooperates with the lifting cylinder 4114 to apply an upward force to the ear cover 012 to perform the pressing strength test between it and the main cover 011. After the test is completed, it falls back to the main conveyor belt 10 and unqualified products are rejected or sent to the subsequent finished product station.

[0050] The above description is merely a specific example of the present invention and does not constitute any limitation on the present invention. Obviously, those skilled in the art, after understanding the content and principles of the present invention, may make various modifications and changes in form and detail without departing from the principles and structure of the present invention; however, these modifications and changes based on the spirit of the present invention are still within the scope of protection of the claims of the present invention.

Claims

1. An integrated device for pressing and pressing quality inspection of a combination bottle cap with a hanging ear, wherein the combination bottle cap (01) includes a main cap (011) that seals with the bottle body (02) and a hanging ear outer cap (012) that presses with the main cap (011), the hanging ear outer cap (012) having a sleeve portion (0121) and a hanging ear portion (0122) having a hanging hole (0123), and the combination bottle cap (01) is a bottle cap with an integrally thinned wall thickness, characterized in that, include: The main conveyor belt (10) is used to transport the bottle body after the main cap (011) and bottle body (02) have been sealed together; the feeding mechanism is used to supply the outer cap (012) with the hanging ear; the pressing and testing integrated device (40) is used to test the combined bottle cap (01) with reduced wall thickness during the pressing process and after pressing, so as to compensate for the lack of rigidity caused by the reduction of wall thickness and the reduced adaptive fault tolerance of the micro-alignment during pressing. The pressing and testing integrated device (40) includes: A pressing mechanism (41) is used to apply downward pressure to the outer cover (012) to press it onto the outer periphery of the main cover (011); a flatness detection mechanism (42) is synchronously driven by the same driving power source as the pressing mechanism (41), and the flatness detection mechanism (42) synchronously detects the flatness of the upper end face of the sleeve portion (0121) of the outer cover (012) during the pressing stroke, and immediately stops the pressing mechanism (41) when a deviation is detected; a pressing strength detection mechanism (43) utilizes the combined bottle cap (01) The pressing is completed immediately. After pressing, an upward force is applied to the outer cover (012) to cause the outer cover (012) to separate from the main cover (011) in order to detect the bonding strength between the two. The application of the upward force is achieved by driving the bottle body to move downward so that the inner wall of the hanging hole (0123) of the outer cover (012) abuts against the force-applying component of the pressing strength detection mechanism (43). The downward movement of the bottle body is also a reset action for the bottle body to fall back to the main conveyor belt (10) after the detection is completed.

2. The integrated device according to claim 1, characterized in that, The pressing mechanism (41) includes: a lifting and positioning assembly (411), which includes two supporting lifting plates (4111) clamping on both sides of the neck of the bottle, a clamping and pushing cylinder (4112) for driving the two supporting lifting plates (4111) to move towards or away from each other, and a lifting cylinder (4114) for driving the two supporting lifting plates (4111) in the clamping state to rise and fall; and a pressing assembly (412), which includes a pressing seat (4121) located above the outer cover (012) of the ear and a pressing cylinder (4122) connected to the upper end of the pressing seat (4121).

3. The integrated device according to claim 2, characterized in that, The pressing base (4121) is hollow at both ends along the conveying direction and forms a detection station groove (421). The ear portion (0122) of the ear cover (012) can be placed in the detection station groove (421) through relative lifting and lowering movement with the pressing base (4121). The flatness detection mechanism (42) and the pressing strength detection mechanism (43) are both located in the detection station groove (421).

4. The integrated device according to claim 3, characterized in that, The flatness detection mechanism (42) includes a pressure plate assembly (422) disposed in the detection station slot (421). Each pressure plate assembly (422) includes two horizontal pressure plates (4221) placed on both sides of the hanging ear (0122) and located above the sleeve (0121). The two horizontal pressure plates (4221) are elastically connected to the side wall by springs (4222) installed longitudinally in the mounting groove (4211) on the side wall of the detection station slot (421). When the pressing cylinder (4122) drives the pressing seat (4121) to move down, it simultaneously drives the two horizontal pressure plates (4221) to press against the upper end face of the sleeve (0121) on both sides of the hanging ear (0122). The flatness is judged by detecting the upward movement of the two horizontal pressure plates (4221).

5. The integrated device according to claim 4, characterized in that, Each of the horizontal pressure plates (4221) is provided with a mounting groove (4211) and a spring (4222) at both ends. The upper end of the horizontal pressure plate (4221) is hinged to a vertical sliding plate (4232) through a hinge seat (4231). The vertical sliding plate (4232) is slidably installed in the mounting groove (4211) and passes through its lower end. When there is an skew on the upper end face of the sleeve part (0121), a rotation angle is generated between the vertical sliding plate (4232) and the hinge seat (4231). The resistance generated by the rotation angle is greater than the elastic force generated by the maximum compression of the spring (4222). A pressure sensor is provided on the pipeline of the press-fit cylinder (4122). When the resistance generated by the rotation angle is sensed, the pressing stops.

6. The integrated device according to claim 3, characterized in that, The pressing strength testing mechanism (43) includes a pressing component (431) disposed in the testing station slot (421). Each pressing component (431) includes two connecting top blocks (4311) slidably disposed on the two side walls of the testing station slot (421), a pressing cylinder (4312) that drives the two connecting top blocks (4311) to move toward the hanging ear (0122), and a pressing shaft (4313) hinged in the inner hinge groove (4315) of the two connecting top blocks (4311). The hinge end of the pressing shaft (4313) is equipped with a torsion spring (4314) with a pre-applied pre-tightening torque. The torsion spring (4314) causes the pressing shaft (4313) to have an upward flipping tendency. The pressing shaft (4313) is kept horizontal by the limit of the inner wall of the hinge groove (4315) to pass through the suspension hole (0123).

7. The integrated device according to claim 6, characterized in that, After the pressure-applying shaft (4313) passes through the suspension hole (0123), the bottle body is driven to move down by the lifting cylinder (4114) so ​​that the inner wall of the suspension hole (0123) abuts against the pressure-applying shaft (4313). The reverse torque of the torsion spring (4314) applies an upward force to the ear part (0122) through the pressure-applying shaft (4313). The pressing and detection integrated device (40) is also provided with a pressing displacement sensor (432) located above the main conveyor belt (10) near the end of the conveying direction. It is used to detect the displacement change of the ear cover (012) after the bottle body falls back to the main conveyor belt (10) to determine whether the pressing strength is qualified.

8. A pressing and pressing quality inspection method for a combination bottle cap with a hanging ear, wherein the combination bottle cap (01) includes a main cap (011) that seals with the bottle body (02) and a hanging ear outer cap (012) that presses with the main cap (011), the hanging ear outer cap (012) having a sleeve portion (0121) and a hanging ear portion (0122) having a hanging hole (0123), and the combination bottle cap (01) is a bottle cap with an integrally thinned wall thickness, characterized in that, Includes the following steps: S1. Loading: Place the outer cover (012) with the hanging ear on the upper part of the bottle body, which has been sealed with the main cover (011) and the bottle body (02). S2. Pressing and flatness detection simultaneously: The same driving power source drives the pressing mechanism (41) to press down on the outer cover (012) of the lug, press it onto the outer periphery of the main cover (011), and simultaneously detect the flatness of the upper surface of the sleeve part (0121) during the same pressing stroke. If the detection is not qualified, the pressing is stopped immediately. S3. Pressing strength test: After the pressing is completed, the pressing state of the combined bottle cap (01) is used to apply an upward force to the outer cover of the hanging ear (012) so that it tends to separate from the main cover (011). The bonding strength between the two is tested. The application of the upward force and the reset action of the bottle falling back to the conveyor belt after the test are achieved by the same downward movement to compress the production cycle. S4. Rejection and Release: Reject bottles that do not meet the flatness or compression strength requirements, and send qualified bottles to the finished product station.

9. The method according to claim 8, characterized in that, In step S2, two horizontal pressure plates (4221) located on both sides of the ear part (0122) and moving down synchronously with the pressing are pressed onto the upper end face of the sleeve part (0121). The upward movement of the two horizontal pressure plates (4221) is detected: if the upward movement is the same, the flatness is qualified; if they are different, the deviation is determined. When the deviation causes the vertical sliding plate (4232) hinged to the upper end of the horizontal pressure plate (4221) to rotate with the hinge seat (4231), and the resistance of the rotation is sensed by the pressure sensor on the pressing drive pipeline, the pressing is stopped and the batch of bottles is rejected.

10. The method according to claim 8, characterized in that, In step S3, the pressure-applying shaft (4313) is made to pass through the suspension hole (0123), and then the bottle body is driven to move down so that the inner wall of the suspension hole (0123) abuts against the pressure-applying shaft (4313). The reverse torque of the torsion spring (4314) at the hinge end of the pressure-applying shaft (4313) applies an upward force to the ear part (0122). The downward movement of the bottle body and the reset action of the bottle body falling back to the conveyor belt after the detection are the same action. After the bottle body falls back to the conveyor belt, the displacement change of the ear cover (012) relative to the main cover (011) is detected by the pressure displacement sensor (432) to determine whether the pressure strength is qualified.

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