Circulating speed measuring device for annular refrigerator door body foaming line motor train unit

Abstract

The utility model relates to an annular refrigerator door foaming line motor train unit circulation speed measuring device, which comprises symmetrical fixing seats for supporting a limiting frame, a follow-up mechanism is arranged on the hollow limiting frame in a penetrating manner, a speed measuring mechanism and a tensioning mechanism are respectively inserted into the end parts of the hollow limiting frame, the follow-up mechanism comprises a front follow-up wheel transversely arranged at the front end of the limiting frame in a penetrating manner, and a rear follow-up wheel transversely arranged at the rear end of the limiting frame in a penetrating manner; a rear tensioning wheel is arranged at the rear end of the limiting frame, a circulating chain is arranged between the rear tensioning wheel and the limiting frame in a sleeved mode and can circularly rotate along with the rear tensioning wheel, and a plurality of vertically-arranged follow-up blocks are vertically arranged on the circulating chain and can be circularly stirred along with the circulating chain. A pushing part matched with the follow-up block is arranged on the side portion of the foaming line motor train unit in a supporting mode and can drive the follow-up block to rotate circularly in real time along with movement of the motor train unit. The speed measuring mechanism comprises a concentric wheel which rotates coaxially with the front follower wheel, the periphery of the concentric wheel is sleeved with a transmission belt, and the transmission belt is connected with a velometer which can receive and convert the rotating speed of the circulating chain in real time; the problem that the precision of an existing conveying system is difficult to calibrate is solved, and the stability of the conveying speed and the measurement precision are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to foaming line device technical field, especially relate to annular refrigerator door body foaming line motor train unit circulating speed measuring device. BACKGROUND

[0002] In the modern household appliance manufacturing industry, the foaming process of refrigerator door body is an important link to ensure product quality. The stability of the foaming process is directly related to the heat preservation performance and structural strength of the door body, so the precision of the foaming line conveying system is extremely strict in the production process. However, the existing conveying system often has the problem of difficult calibration of conveying precision in actual operation, mainly in the following aspects.

[0003] Firstly, the traditional conveying system adopts fixed track for the transmission of door body, but due to the influence of factors such as chain tightness, friction and load change, the conveying speed may fluctuate. This uncertainty of speed will cause slight deviation of the door body position in the foaming agent filling process, thereby affecting the uniformity of foaming and further affecting the product quality. Secondly, the existing conveying system has certain limitations in speed measurement. Some systems use fixed speed measuring devices, such as photoelectric sensors or encoders installed on the conveying track to monitor the conveying speed. However, these speed measurement methods are easily disturbed by environmental factors such as dust and light changes, resulting in unstable speed measurement signals. In addition, due to the linkage of multiple moving parts in the conveying mode of the door body, a single speed measurement point often cannot accurately reflect the actual running state of the entire conveying chain, thereby affecting the precise adjustment of the conveying speed by the control system. Furthermore, the dynamic response capability of the conveying system is poor. Since the motion state of the foaming line motor train unit may change due to the adjustment of production rhythm, such as acceleration, deceleration or short stop, the existing conveying mechanism often lacks effective follow-up monitoring means, resulting in the inability to obtain real-time speed information of the motor train unit in time, making it difficult to accurately match the running state of the conveying chain with the rhythm of the foaming process, thereby affecting the consistency of the foaming quality.

[0004] The existing conveying system of refrigerator door body foaming line has many technical difficulties in precision calibration, including conveying speed fluctuation, limited speed measurement method, insufficient dynamic response capability and lagging adjustment of tensioning mechanism. The existence of these problems directly affects the accurate positioning and consistency of the door body in the foaming process, thereby affecting the product quality, which has become an urgent problem in the foaming industry and needs to be solved. INVENTION CONTENTS

[0005] The utility model provides annular refrigerator door body foaming line motor train unit circulating speed measuring device in view of the existing technology's insufficient, specific technical solutions are as follows:

[0006] The utility model provides a circular refrigerator door body foaming line motor train unit circulating speed measuring device, including the symmetry fixed base of supporting and limiting the frame, hollow limiting frame is equipped with follow -up mechanism, its end part respectively inserts and is equipped with speed measuring mechanism and tensioning mechanism, follow -up mechanism includes the front follow -up wheel of traversing in the front end of limiting frame, the rear end of limiting frame is provided with rear tension pulley, is equipped with circulating chain between, can rotate with wheel circulation, and the vertical setting follow -up block of standing on circulating chain can be followed chain circulation and is moved,

[0007] The side of the foaming line motor train unit is provided with a pushing part matched with the follow-up block, and the follow-up block is circularly rotated in real time when the motor train unit moves;

[0008] The speed measuring mechanism comprises a concentric wheel coaxially rotating with the front follow-up wheel, a transmission belt is sleeved on the outer periphery of the concentric wheel, and a speed measuring device is connected to the transmission belt, so that the rotating speed of the circulating chain can be converted and received in real time.

[0009] As a preferred technical scheme of the utility model, the tensioning mechanism comprises a horizontal moving plate horizontally attached to the rear end of the limiting frame, and a rear tension pulley rotating with the circulating chain is arranged on the horizontal moving plate, the front part of the horizontal moving plate is provided with a fixed embedded block, a tension bolt connected to the horizontal moving plate is inserted into the embedded block, the relative position of the rear tension pulley can be changed by rotating the tension bolt, so that the tightness of the circulating chain can be adjusted.

[0010] As a preferred technical scheme of the utility model, an adjusting rod is arranged through the bottom of the fixed base, and double nuts are arranged on the two ends of the adjusting rod penetrating through the fixed base, so that the ground clearance of the two ends of the fixed base can be adjusted, and the horizontal position of the follow-up mechanism can be maintained.

[0011] As a preferred technical scheme of the utility model, the follow-up block is connected to the chain link of the circulating chain through a bolt, and the follow-up block can be independently replaced to any chain link, and the follow-up block can be replaced in real time according to the wear condition.

[0012] As a preferred technical scheme of the utility model, the pushing part comprises an L-shaped detachable pushing support arranged on the side of the foaming line motor train unit, the relative position of the follow-up block can be finely adjusted forward and backward, and an elastic buffer layer is attached to the pushing support, so that the impact generated by pushing the follow-up block can be reduced.

[0013] As a preferred technical scheme of the utility model, the follow-up blocks on the circulating chain are arranged at equal distances, and an even number of follow-up blocks are arranged, so that the follow-up blocks above and below the circulating chain are equal.

[0014] As a preferred technical scheme of the utility model, the concentric wheel shaft end is connected with an adjustable h-shaped damping seat supporting the speed measuring device, the adjustable h-shaped damping seat can be adjusted in real time in cooperation with the transmission belt, and the speed measuring device can be efficiently calibrated.

[0015] The utility model has the advantages that:

[0016] 1. Real-time speed measurement, improve the precision of conveying: The device monitors the running speed of the circulating chain in real time through the speed measurement mechanism. The speed measurement mechanism adopts a concentric wheel structure coaxial with the front follower wheel, and connects the speedometer through a transmission belt, so that the speedometer can accurately obtain the real-time speed of the circulating chain. Compared with the traditional fixed speed measurement device, this scheme can effectively avoid the interference of environmental factors and improve the accuracy of speed measurement, thereby ensuring the precision of the conveying system.

[0017] 2. The following mechanism improves the stability of speed measurement: The combination structure of the front follower wheel and the rear tensioning wheel makes the circulating chain run stably. The driving part of the motor train set cooperates with the following block to drive the following block to rotate in real time when the motor train set moves, so as to ensure that the speed measurement device can reflect the actual running state of the motor train set synchronously. This kind of following type speed measurement can effectively reduce the speed measurement lag and improve the calibration ability of conveying precision.

[0018] 3. Dynamic tensioning, reducing conveying error: The tightness of the chain in the traditional conveying system is easily changed by long-term operation, which leads to unstable conveying speed. The device sets the rear tensioning wheel to make the circulating chain maintain appropriate tension, reduce the phenomenon of chain relaxation or slipping, and thus ensure the stability of the speed measurement data and improve the consistency of the conveying precision.

[0019] 4. Closed loop control, improve the response speed of the system: The device can provide accurate speed measurement data to provide reliable basis for the closed loop control of the conveying system. By feeding back the speed measurement data to the control system, the real-time adjustment of the conveying speed can be realized, so that the door body conveying and the foaming process beat can be accurately matched, and the production efficiency and product quality can be improved.

[0020] 5. Strong adaptability, suitable for different production rhythm: Since the device can monitor the running state of the motor train set in real time and adjust synchronously through the following mechanism of the circulating chain, it can adapt to the conveying demand under different production rhythm. Whether it is acceleration, deceleration or short stop, the device can ensure the accuracy of speed measurement and improve the stability of conveying precision.

[0021] In summary, the circulating speed measurement device of the ring-shaped refrigerator door body foaming line motor train set overcomes the problem that the precision of the existing conveying system is difficult to calibrate, improves the stability of the conveying speed and the measurement precision, ensures the accurate positioning of the door body in the foaming process, and thus improves the product quality and production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The overall structure schematic diagram of the present application is shown;

[0023] Figure 2The utility model discloses a three-dimensional structure schematic diagram of push part shows in the utility model;

[0024] Figure 3 The utility model discloses a three-dimensional structure schematic diagram of speed measuring mechanism shows in the utility model;

[0025] Figure 4 The utility model discloses a three-dimensional structure schematic diagram of tensioning mechanism shows in the utility model;

[0026] Figure 5 The utility model discloses a three-dimensional structure schematic diagram of fixed seat shows in the utility model;

[0027] In the drawing, 1 is the limiting frame, 2 is the fixed seat, 21 is the height adjustment rod, 22 is the double nut, 3 is the follow-up mechanism, 31 is the front follow-up wheel, 32 is the circulating chain, 33 is the rear tensioning wheel, 34 is the follow-up block, 4 is the tensioning mechanism, 41 is the transverse plate, 42 is the embedded block, 43 is the tight bolt, 5 is the speed measuring mechanism, 51 is the concentric wheel, 52 is the transmission belt, 53 is the speedometer, 54 is the shock absorbing seat, 6 is the push part, 61 is the push support, 62 is the buffer layer. DETAILED DESCRIPTION

[0028] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following is with example, and this utility model is further detailedly explained.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0029] Example one

[0030] In order to solve the technical problem in the background art, the following annular refrigerator door body foaming line motor train unit circulating speed measuring device is given:

[0031] Combination Figures 1-3 As shown in the figure, the annular refrigerator door body foaming line motor train unit circulating speed measuring device comprises symmetrical fixed seats 2 of supporting limiting frames 1, the hollow limiting frames 1 are provided with follow-up mechanisms 3, the ends are respectively provided with speed measuring mechanisms 5 and tensioning mechanisms 4, the follow-up mechanisms 3 comprise front follow-up wheels 31 transversely provided at the front ends of the limiting frames 1, rear tensioning wheels 33 are arranged at the rear ends of the limiting frames 1, the circulating chains 32 are sleeved therebetween, can rotate circularly with the wheels, and a plurality of vertical follow-up blocks 34 are vertically arranged on the circulating chains 32, can be circularly actuated with the chains;

[0032] The side of the foaming line motor train unit is provided with a push part 6 matched with the follow-up blocks 34, can move with the motor train unit to drive the follow-up blocks 34 to rotate circularly in time;

[0033] The speed measuring mechanism 5 comprises a concentric wheel 51 coaxially rotating with the front follow-up wheel 31, the transmission belt 52 is sleeved on the outer periphery of the concentric wheel 51, and the speedometer 53 is connected to the transmission belt 52, can receive and convert the rotating speed of the circulating chain 32 in real time.

[0034] Please refer to the instruction manual appendix. Figures 1-3 This utility model provides a first embodiment of a speed measuring device for a high-speed train with a foaming line on a ring-shaped refrigerator door. In this embodiment, the speed measuring device mainly consists of a symmetrical fixed seat 2 supporting a limiting frame 1. The limiting frame 1 is a hollow structure, and a follower mechanism 3 is inserted inside it. A speed measuring mechanism 5 and a tensioning mechanism 4 are respectively inserted into the ends of the follower mechanism 3 to realize real-time monitoring and adjustment of the high-speed train's operating status.

[0035] In this embodiment, the follower mechanism 3 includes a front follower wheel 31 and a rear tensioning wheel 33. The front follower wheel 31 is transversely inserted through the front end of the limiting frame 1, and the rear tensioning wheel 33 is installed at the rear end of the limiting frame 1. A circulating chain 32 is sleeved between the two, allowing the circulating chain 32 to rotate cyclically with the wheel. Multiple vertically arranged follower blocks 34 are erected on the circulating chain 32, and the follower blocks 34 can rotate cyclically with the movement of the circulating chain 32 to match the operating state of the train set.

[0036] Furthermore, in this embodiment, a pushing part 6 is provided on the side of the foaming line EMU. The pushing part 6 cooperates with the follower block 34 and can drive the follower block 34 to rotate cyclically as the EMU moves. Through this structural design, the follower block 34 can accurately reflect the motion state of the EMU, and through the transmission action of the circulating chain 32, the speed measuring mechanism 5 can obtain accurate speed measuring data.

[0037] In this embodiment, the speed measuring mechanism 5 includes a concentric wheel 51 that rotates coaxially with the front follower wheel 31. A transmission belt 52 is sleeved around the outer periphery of the concentric wheel 51, and the transmission belt 52 is further connected to a speed measuring device 53. The speed measuring device 53 can receive the motion information of the transmission belt 52 in real time and convert it into the rotational speed data of the circulating chain 32 to provide accurate speed measurement results. Since the concentric wheel 51 rotates coaxially with the front follower wheel 31, the speed measuring device 53 can accurately sense the running speed of the circulating chain 32, ensuring the accuracy of the speed measurement data.

[0038] Furthermore, to ensure the stable operation of the circulating chain 32, a rear tensioning wheel 33 is provided at the rear end of the limiting frame 1 in this embodiment. The rear tensioning wheel 33 can apply appropriate tension to the circulating chain 32 to reduce chain slack and slippage, thus ensuring the measurement accuracy of the speed measuring mechanism 5. At the same time, the tension of the circulating chain 32 can be adjusted according to the actual operating conditions to adapt to different production needs.

[0039] In summary, in this embodiment, through the cooperation of the limiting frame 1, the follow-up mechanism 3, the speed measuring mechanism 5 and the tensioning mechanism 4, the speed measuring device can accurately follow the running status of the EMU, realize real-time monitoring of the conveying speed of the foaming line, and ensure the accuracy and stability of the speed measuring data.

[0040] Example 2

[0041] Combination Figures 4-5 Based on the above embodiment, the embodiment further provides the following contents as shown in the drawings:

[0042] In the embodiment, the tensioning mechanism 4 includes a transverse plate 41 attached to the rear end of the limiting frame 1, and a rear tensioning wheel 33 is arranged on the transverse plate 41 and rotates with the circulating chain 32. The front part of the transverse plate 41 is provided with a fixed embedding block 42, and a loose pin 43 connected to the transverse plate 41 is arranged in the embedding block 42. The relative position of the rear tensioning wheel 33 can be changed by rotating the loose pin 43, so as to adjust the tightness of the circulating chain 32.

[0043] The bottom of the fixed seat 2 is provided with an adjusting rod 21, and the two ends of the adjusting rod 21 pass through the fixed seat 2 and are respectively sleeved with double nuts 22 arranged in opposite directions. The ground clearance of the two ends of the fixed seat 2 can be adjusted to maintain the level of the follow-up mechanism 3.

[0044] The adjustable h-shaped damping seat 54 of the supporting speed detector 53 is connected to the shaft end of the concentric wheel 51, and can be adjusted in real time with the transmission belt 52 to efficiently calibrate the speed detector 53.

[0045] Please refer to the drawings in the description Figures 4-5 The utility model provides a second embodiment of annular refrigerator door body foaming line motor train unit circulating speed measuring device. In the embodiment, the speed measuring device comprises a tensioning mechanism 4, a fixed seat 2 adjusting structure and a speed detector 53 supporting structure, so as to ensure the stable operation of the circulating chain 32 and the speed measuring accuracy.

[0046] In the embodiment, the tensioning mechanism 4 includes a transverse plate 41 attached to the rear end of the limiting frame 1, and a rear wheel is arranged on the transverse plate 41 and rotates with the circulating chain 32. The front part of the transverse plate 41 is provided with a fixed embedding block 42, and a loose pin 43 connected to the transverse plate 41 is arranged in the embedding block 42. The relative position of the rear tensioning wheel 33 can be changed by rotating the loose pin 43, so as to adjust the tightness of the circulating chain 32, so that the circulating chain 32 maintains an appropriate tensioning state during operation, and the stability of speed measurement is ensured.

[0047] In the embodiment, the bottom of the fixed seat 2 is provided with an adjusting rod 21, and the two ends of the adjusting rod 21 pass through the fixed seat 2 and are respectively sleeved with double nuts 22 arranged in opposite directions. By adjusting the double nuts 22, the ground clearance of the two ends of the fixed seat 2 can be changed to maintain the level of the follow-up mechanism 3, so as to ensure the stability of the running track of the circulating chain 32 and avoid speed measurement errors caused by inclination.

[0048] Further, in the embodiment, in order to improve the stability and measurement accuracy of the tachometer 53, the shaft end of the concentric wheel 51 is connected with an adjustable h-shaped damping seat 54 supporting the tachometer 53.

[0049] Embodiment three

[0050] Combined Figures 1-4 Based on the above embodiment, the embodiment further provides the following content:

[0051] In the embodiment, the follower block 34 is bridged to the chain link of the circulating chain 32 through a bolt and can be independently replaced to any chain link and can be shifted and replaced in real time according to the wear condition.

[0052] The pushing part 6 comprises an L-shaped detachable pushing support 61 arranged on the side of the foaming line motor train unit, can be finely adjusted forward and backward according to the relative position of the follower block 34, and the elastic buffer layer 62 is attached to the pushing support 61, so that the impact generated by pushing the follower block 34 can be reduced.

[0053] The follower blocks 34 on the circulating chain 32 are arranged at equal distances and are provided in an even number, so as to ensure that the number of the follower blocks 34 above and below the circulating chain 32 is equal.

[0054] Please refer to the attached drawings Figures 1-4 The third embodiment of the annular refrigerator door body foaming line motor train unit circulating speed measuring device is provided. In the embodiment, the follower block 34 of the speed measuring device is bridged to the chain link of the circulating chain 32 through a bolt and can be independently replaced to any chain link. Through the structure design, the follower block 34 can be shifted and replaced in real time according to the wear condition, so as to ensure the long-term stable operation of the device.

[0055] In the embodiment, the pushing part 6 comprises an L-shaped detachable pushing support 61 arranged on the side of the foaming line motor train unit, can be finely adjusted forward and backward according to the relative position of the follower block 34, and the elastic buffer layer 62 is attached to the pushing support 61, so that the impact generated by pushing the follower block 34 can be reduced.

[0056] Further, in the embodiment, the follower blocks 34 on the circulating chain 32 are arranged at equal distances and are provided in an even number, so as to ensure that the number of the follower blocks 34 above and below the circulating chain 32 is equal. Through the equal-distance arrangement mode, the balance of the circulating chain 32 during operation can be ensured, and the unstable operation caused by uneven distribution of the follower blocks 34 can be avoided.

[0057] The working principle and use process of the utility model:

[0058] In use annular refrigerator door body foaming line train set circulating speed measuring device, first, the device is fixedly installed in the conveying position of the foaming line, makes symmetrical fixed seat 2 stable and supports limiting frame 1, and adjusts the height from the ground of both ends of fixed seat 2 through height adjusting rod 21 and double nut 22, to ensure that servo mechanism 3 is in horizontal state.After installation, circulating chain 32 is unfolded around front servo wheel 31 and rear tension wheel 33, and the position of rear tension wheel 33 is adjusted through transverse plate 41 and tight bolt 43 on tensioning mechanism 4, so that circulating chain 32 maintains appropriate tightness, and ensures that it can stably circulate rotation.

[0059] In the process of equipment operation, the foaming line train set moves along the conveying track, and the L-shaped detachable push bracket 61 on the side cooperates with the servo block 34 on the circulating chain 32, the push bracket 61 can be adjusted forward and backward according to the relative position of the servo block 34, and the elastic buffer layer 62 is relied on to reduce the impact force.When the train set moves, the push part 6 drives the servo block 34 to circulate and push, the servo block 34 is bridged to the link of the circulating chain 32 through bolts, and in the speed measuring process, the front servo wheel 31 drives the coaxially installed concentric wheel 51 to rotate, the transmission belt 52 on the outer periphery of the concentric wheel 51 moves synchronously, and the real-time speed is transmitted to the speedometer 53.The speedometer 53 is efficiently calibrated through the adjustable h-shaped shock absorbing seat 54 supporting it, and according to the real-time adjustment of the transmission belt 52, the accurate collection of speed data is ensured.

[0060] The above only for the preferred embodiment of the utility model has been described, and does not limit the utility model, any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A circular refrigerator door foaming line EMU cyclic speed measuring device, comprising a symmetrical fixed seat (2) supporting a limiting frame (1), wherein a follower mechanism (3) is threaded through the hollow limiting frame (1), and a speed measuring mechanism (5) and a tensioning mechanism (4) are respectively inserted at its ends, characterized in that: The follow-up mechanism (3) comprises a front follow-up wheel (31) transversely arranged at the front end of the limiting frame (1), and a rear tension wheel (33) arranged at the rear end of the limiting frame (1), wherein a circulating chain (32) is sleeved therebetween, the circulating chain (32) is rotatable, and a plurality of vertical follow-up blocks (34) are vertically arranged on the circulating chain (32) and are rotatable with the chain. The side of the foaming line train is provided with a pushing part (6) matched with the follow-up block (34), so that the follow-up block (34) is rotated in a cycle when the train moves. The speed measuring mechanism (5) comprises a concentric wheel (51) coaxially rotatable with the front follow-up wheel (31), a transmission belt (52) sleeved on the outer periphery of the concentric wheel (51), and a speedometer (53) connected to the transmission belt (52) and capable of receiving the rotating speed of the circulating chain (32) in real time.

2. The ring-shaped refrigerator door body foaming line train circulating speed measuring device according to claim 1, characterized in that: The tensioning mechanism (4) comprises a transverse plate (41) transversely arranged at the rear end of the limiting frame (1), and a rear tension wheel (33) rotatable with the circulating chain (32) arranged on the transverse plate (41), wherein a fixed embedding block (42) is arranged at the front part of the transverse plate (41), a tensioning bolt (43) connected to the transverse plate (41) is inserted into the embedding block (42), and the relative position of the rear tension wheel (33) is changed by rotating the tensioning bolt (43), so as to adjust the tightness of the circulating chain (32).

3. The looped refrigerator door body foaming line train circulating speed measuring device according to claim 2, characterized in that: The bottom of the fixed seat (2) is provided with an adjusting rod (21), and double nuts (22) are arranged at both ends of the adjusting rod (21) penetrating through the fixed seat (2), so as to adjust the ground clearance of both ends of the fixed seat (2) and maintain the horizontal state of the follow-up mechanism (3).

4. The looped refrigerator door body foaming line train circulating speed measuring device according to claim 3, characterized in that: The follow-up block (34) is connected to the chain link of the circulating chain (32) by a bolt, and can be independently replaced to any chain link and be replaced in real time according to the wear condition.

5. The looped refrigerator door body foaming line train circulating speed measuring device according to claim 4, characterized in that: The pushing part (6) comprises an L-shaped detachable pushing support (61) arranged on the side of the foaming line train, the relative position of the follow-up block (34) can be finely adjusted, and an elastic buffer layer (62) is arranged on the pushing support (61) to reduce the impact generated by pushing the follow-up block (34).

6. The looped refrigerator door body foaming line train circulating speed measuring device according to claim 5, characterized in that: The follow-up blocks (34) on the circulating chain (32) are arranged at equal intervals and are provided in an even number, so as to ensure that the follow-up blocks (34) on the upper and lower circulating chains (32) are equal.

7. The looped refrigerator door body foaming line train circulating speed measuring device according to any one of claims 1-6, characterized in that: The adjustable h-shaped damping seat (54) connected to the shaft end of the concentric wheel (51) supports the speedometer (53), can be adjusted in real time with the transmission belt (52), and is used for efficient calibration of the speedometer (53).

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