Beverage packaging performance detection equipment

Abstract

The invention provides beverage packaging performance detection equipment, which belongs to the technical field of beverage packaging performance detection and comprises a first detection head, a second detection head, a third detection head, an adjusting head and a linkage control mechanism. And when any group of the symmetrical detection heads I and the symmetrical detection heads II synchronously and reversely move, the vertical moving seat is synchronously controlled by the linkage control mechanism to reciprocate up and down. The beverage package performance detection equipment is provided with a plurality of detection heads, can quickly, efficiently and stably complete the detection of the compression resistance and impact resistance of a detected object in the front-back direction, the left-right direction and the up-down direction on the basis of placing the detected object at one time, and can effectively avoid the situation that the detection efficiency is reduced due to unexpected movement of the detected object; and meanwhile, through the cooperation of the adjusting head and the linkage control mechanism, the first detection head and the second detection head synchronously drive the third detection head to move in the moving process, and the stability and reliability of the whole detection process are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of beverage packaging performance detection, in particular to beverage packaging performance detection equipment. Background Art

[0002] Beverage packaging performance testing is an important step to ensure that packaging materials and designs can protect product quality, ensure food safety, and meet transportation and storage requirements. Among them, strength testing is used to evaluate the ability of beverage packaging to withstand pressure during transportation and handling to ensure that the packaging will not easily break or deform.

[0003] Strength testing mainly includes compression and impact testing. Currently, compression and impact testing are usually performed separately. During the compression test, a compression testing machine applies a preset pressure to the object under test and observes the deformation of the object to evaluate its compression resistance. Currently, compression and impact testing are usually performed separately using corresponding equipment, resulting in low overall testing efficiency. This is especially true for beverage packaging with relatively low flexibility, such as paper beverage packaging, where the pressure required during testing is not very high. A single testing device can usually fully meet the requirements for both compression and impact testing. Secondly, existing testing equipment usually has only one pressure testing head. When pressure needs to be applied from multiple sides to improve the reliability of the test results, multiple shutdowns are required to switch the side of the object facing the pressure testing head. This not only reduces testing efficiency, but also makes it easy for objects with large length, width and height ratios to tilt or unexpectedly move during testing when applying pressure on a narrow side, affecting the smooth progress of the test and further affecting the efficiency of the test. Summary of the Invention

[0004] The present invention provides a beverage packaging performance testing device to solve the problems of low testing efficiency and reliability in the related art for testing the compressive strength and impact resistance of flexible beverage packaging from multiple sides.

[0005] The present invention provides a beverage packaging performance testing device, which includes: a platform for placing an object to be tested; a testing head 1, a testing head 2 and a testing head 3, wherein the testing head 1 and the testing head 2 are symmetrically distributed and apply pressure to the object to be tested from the horizontal and vertical directions respectively, and the testing head 1 and the testing head 2 do not work at the same time, and the testing head 3 applies pressure to the object to be tested from the vertical direction; an adjusting head, wherein the adjusting head includes a vertical displacement seat provided with a sliding frame for vertical sliding, a control component is provided on the vertical displacement seat, the sliding frame and the vertical displacement seat are provided with elastic parts, a limit head is provided on the sliding frame, and the testing head 3 is installed on the sliding frame; a linkage control mechanism, wherein any group of the symmetrical testing head 1 and the symmetrical testing head 2 can move synchronously in opposite directions. The vertical movement seat is synchronously controlled to move back and forth up and down through the interlocking control mechanism; during the detection work of the detection head 1 and the detection head 2, the sliding frame and the vertical movement seat are in an elastic connection state, and the detection head 3 elastically limits the object to be measured before the detection head 1 or the detection head 2 applies pressure to the object to be measured, and in the process of the detection head 1 or the detection head 2 applying pressure to the object to be measured, the detection head 1 or the detection head 2 limits the limit head, so that the sliding frame moves up and automatically releases the limit of the detection head 3 on the object to be measured; during the detection work of the detection head 3, the sliding frame is in a relatively fixed state with the vertical movement seat under the control of the control component, so that the detection head 3 completes the detection work between the detection head 1 or the detection head 2 and the contact with the object to be measured.

[0006] In one possible implementation, the linkage control mechanism includes a control shaft, a control unit and a linkage unit. The control shaft controls the vertical movement of the vertical displacement seat through the control unit. During the movement of detection head 1 and detection head 2, the control shaft is rotated through the linkage unit. The linkage unit includes a worm wheel, a worm, a gear and a rack. The worm wheel is fixedly connected to the control shaft, and the worm is meshed with the worm wheel. Both ends of the worm are fixedly connected with gears. The racks correspond one-to-one to the gears at both ends of the worm, and the gears at both ends of the worm are not in meshing state at the same time. The racks corresponding one-to-one to the gears at both ends of the worm correspond to detection head 1 and detection head 2 respectively, and the racks move synchronously with the corresponding detection head 1 or detection head 2.

[0007] In one possible implementation, the control component includes a limit member, a limit groove, a clamping member and a locking member. The limit groove is opened on the vertical movement seat, the limit member is fixedly connected to the sliding frame and the limit member moves in the limit groove, and the clamping member is slidably connected to the vertical movement seat. During the detection work of the detection head 1 and the detection head 2, the clamping member is in a non-clamping state. When the detection head 3 performs the detection work, the clamping member presses against the sliding frame and is locked by the locking member, so that the sliding frame and the vertical movement seat are in a relatively fixed state.

[0008] In one possible implementation, an adjustment member is slidingly arranged in the limit groove, the adjustment member is used to control the moving range of the limit member, an adjustment seat is arranged between the limit head and the sliding frame, the adjustment seat is used to adjust the position height of the limit head, the clamping member is a rod-shaped structure and the clamping member is threadedly connected to the locking member, and the locking member is rotatably connected to the vertical displacement seat.

[0009] In a possible implementation, the limiting head includes a transverse limiting portion and a longitudinal limiting portion, the transverse limiting portion cooperates with the first detection head, and the longitudinal limiting portion cooperates with the second detection head.

[0010] In one possible implementation, a pressure plate is vertically slidably installed on the vertical displacement seat, and a locking piece is provided between the pressure plate and the vertical displacement seat. When the detection head three performs detection work, the pressure plate can be connected flatly with the detection head three and locked in the current position by the locking piece, thereby increasing the coverage area of the detection head three.

[0011] In a possible implementation, both the transverse limiting portion and the longitudinal limiting portion are provided with tilt limiting areas, and both the first detection head and the second detection head are provided with rollers corresponding to the tilt limiting areas.

[0012] In a possible implementation, rollers are provided on the bottom surfaces of the first detection head and the second detection head, and the rollers move on the platform as the corresponding first detection head or the second detection head moves.

[0013] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0014] 1. A beverage packaging performance testing device provided according to an embodiment of the present invention has multiple testing heads. On the basis of placing the object to be tested at one time, it can quickly, efficiently and stably complete the testing of the compressive performance and impact resistance of the object to be tested under multi-directional forces in the front, back, left, right, up and down directions, and can effectively avoid the unexpected movement of the object to be tested that reduces the testing efficiency, thereby fully improving the smoothness and reliability of the overall testing process. At the same time, through the cooperation between the adjustment head and the linkage control mechanism, the first and second testing heads can synchronously drive the movement of the third testing head during the movement, thereby improving the stability and reliability of the overall testing process.

[0015] 2. According to an embodiment of the present invention, a beverage packaging performance testing device is provided. The linkage unit cooperates with the drive shaft, so that the detection head 1 and the detection head 2 automatically control the synchronous movement of the detection head 3 during the movement, and utilizes the self-locking function of the worm gear and the worm, so that the detection head 1 and the detection head 2 can complete the switching smoothly, thereby correspondingly improving the stability and reliability of the overall detection process.

[0016] 3. According to a beverage packaging performance testing device provided by an embodiment of the present invention, the adjusting part cooperates with the limiting part and the limiting groove to control the distance between the sliding frame and the vertical displacement seat in a relatively fixed state, and then adjusts the position height of the detection head three, so that the detection head three can detect objects of different heights within a certain range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a beverage packaging performance testing device provided by an embodiment of the present invention.

[0018] Figure 2 This is a structural schematic diagram of a linkage control mechanism, a first detection head, and a second detection head of a beverage packaging performance detection device provided by an embodiment of the present invention.

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0021] Figure 5 It is a structural schematic diagram of a vertical displacement seat, a control shaft and a linkage unit of a beverage packaging performance testing device provided by an embodiment of the present invention.

[0022] In the figure: 1. Detection head 1; 2. Detection head 2; 3. Detection head 3; 4. Adjustment head; 41. Sliding frame; 42. Vertical movement seat; 43. Control assembly; 431. Limiting member; 432. Limiting groove; 433. Pressing member; 434. Locking member; 435. Adjustment member; 436. Adjustment seat; 44. Elastic member; 45. Limiting head; 451. Horizontal limiting part; 452. Longitudinal limiting part; 46. Pressing plate; 47. Locking member; 48. Roller; 5. Interlocking control mechanism; 51. Control shaft; 52. Control unit; 53. Interlocking unit; 531. Worm gear; 532. Worm; 533. Gear; 534. Rack; 6. Platform; 7. Measured object; 8. Base; 9. Frame; 10. Horizontal movement seat; 11. Vertical movement seat. DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described below, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] See also Figure 1 and Figure 2 A beverage packaging performance testing device includes a testing head 1, a testing head 2, a testing head 3, an adjustment head 4, a linkage control mechanism 5, a platform 6, a base 8 and a frame 9. The testing head 1 is symmetrically distributed front and back and moves synchronously in opposite directions. The testing head 2 is symmetrically distributed left and right and moves synchronously in opposite directions. Figure 1 As shown, a transverse seat 10 and a longitudinal seat 11 are slidably installed on the base 8, the transverse seat 10 corresponds one-to-one with the detection head 1, the detection head 1 is fixedly installed on the corresponding transverse seat 10, the longitudinal seat 11 corresponds one-to-one with the detection head 2, the detection head 2 is fixedly installed on the corresponding longitudinal seat 11, and the object to be measured 7 is placed centrally on the platform 6. During the process of testing the compressive performance and impact resistance of the object to be measured 7 under the force in the front and rear directions, the front and rear symmetrical detection heads 1 move synchronously toward the object to be measured 7 and complete the compressive performance and impact resistance tests by controlling the moving speed of the detection head 1. During the process of testing the compressive performance and impact resistance of the object to be measured 7 under the force in the left and right directions, the left and right symmetrical detection heads 2 move synchronously toward the object to be measured 7 and complete the compressive performance and impact resistance tests by controlling the moving speed of the detection head 2. During the process of testing the compressive performance and impact resistance of the object to be measured 7 under the force in the upper and lower directions, the detection head 3 3 moves down toward the object to be measured 7 and completes the pressure resistance test and the impact resistance test accordingly by controlling the moving speed of the detection head three 3, and the detection head three 3 will synchronously move toward the object to be measured 7 during the detection work of the detection head one 1 or the detection head two 2 and apply a certain limiting force to the top surface of the object to be measured 7 to limit the object to be measured 7 before the detection head one 1 or the detection head two 2 contacts the object to be measured 7, so that the symmetrical detection head one 1 or the symmetrical detection head two 2 can stably clamp the object to be measured 7 from both sides during the synchronous relative movement and perform the subsequent pressure test, especially during the impact resistance test, it can effectively prevent the object to be measured 7 from unexpected movement during the detection process and affect the reliability of the detection process. Afterwards, in the process of the detection head one 1 or the detection head two 2 applying pressure to the object to be measured 7 for detection, the detection head three 3 automatically releases the limit on the object to be measured 7, so that the object to be measured 7 can be freely deformed in the subsequent detection process, thereby improving the reliability of the detection results.

[0025] See Figure 1 、 Figure 2 and Figure 3 The adjusting head 4 is used to adjust the connection state of the detection head 3 3 and the initial position of the detection head 3 3 when it performs the detection work, so that the detection head 3 3 is in an elastic connection state during the working process of the detection head 1 1 and the detection head 2 2, and is in a rigid connection state during the detection work itself. At the same time, by controlling the initial position height of the detection head 3 3 in the rigid connection state, it can detect objects 7 of different heights within a certain range, such as Figure 2As shown, the adjusting head 4 includes a vertical displacement seat 42 connected to a sliding frame 41 in a vertical sliding manner, the vertical displacement seat 42 is vertically slidably mounted on the frame 9, the detection head 3 is fixedly mounted below the sliding frame 41, and a control component 43 for controlling the relative state of the sliding frame 41 and the vertical displacement seat 42 is provided on the vertical displacement seat 42. An elastic member 44 is connected between the sliding frame 41 and the vertical displacement seat 42, and a limit head 45 is provided on the sliding frame 41. When any group of the symmetrical detection heads 1 and symmetrical detection heads 2 move synchronously in the opposite direction to perform the detection work, The vertical displacement seat 42 will be synchronously controlled to move up and down reciprocatingly through the linkage control mechanism 5. At this time, the sliding frame 41 and the vertical displacement seat 42 are in an elastically connected state, so that the detection head 3 3 applies a flexible limiting force to the object to be measured 7 to limit the object to be measured 7, and automatically releases the limiting force acting on the object to be measured 7 during the process of the detection head 1 or the detection head 2 2 applying pressure to the object to be measured 7. Taking the detection work of the detection head 1 as an example, during the detection process, the symmetrical detection head 1 moves synchronously toward the middle object to be measured 7. At this time, the vertical displacement seat 42 is in the linkage control mechanism 5. Under the control of the control mechanism 5, it moves downward synchronously. At this time, the sliding frame 41 and the vertical displacement seat 42 are in an elastic connection state. Before the detection head 1 applies pressure to the object 7, the detection head 3 3 first contacts the object 7 and rests on the object 7 to elastically limit the object 7. Later, when the detection head 1 starts to apply pressure to the object 7, the vertical displacement seat 42 will also move accordingly. However, at this time, the limit head 45 will move upward under the limit of the detection head 1, and the sliding frame 41 will move upward accordingly, so that the detection head 3 3 is separated from the object 7, and then the detection head 3 3 is automatically released. The detection head 3 limits the object 7 to be measured, and then when the detection head 1 completes the detection work and resets, the vertical movement seat 42 is synchronously reset under the control of the linkage control mechanism 5. When the detection head 2 2 performs the detection work, the working process of the detection head 3 3 is the same. When the detection head 3 3 performs the detection work, the control component 43 is used to make the sliding frame 41 and the vertical movement seat 42 in a relatively fixed connection state. At this time, moving either the detection head 1 or the detection head 2 2 can control the detection head 3 3 to perform the detection work.

[0026] See Figure 1 、 Figure 2 、 Figure 4 and Figure 5The linkage control mechanism 5 is used to improve the stability and reliability of the overall test process, so that the detection head 1 and the detection head 2 2 can drive the detection head 3 3 to move synchronously through the linkage control mechanism 5 during the movement. The linkage control mechanism 5 includes a control shaft 51, a control unit 52 and a linkage unit 53. The control shafts 51 are symmetrically distributed and rotatably installed on the base 8. There are four control units 52 and they are respectively arranged at the front and rear ends of the two control shafts 51. The control unit 52 can be a sprocket chain mechanism. The control shaft 51 controls the vertical displacement seat through the control unit 52. 42 moves up and down, and the detection head 1 and the detection head 2 rotate the control shaft 51 through the linkage unit 53 during the movement. The linkage unit 53 includes a worm wheel 531, a worm 532, a gear 533 and a rack 534. There are two worm wheels 531 and they are fixedly connected to the control shaft 51 respectively. The worm 532 corresponds to the worm wheel 531 one by one and meshes with it. The worm 532 is rotatably mounted on the base 8. The upper and lower ends of the worm 532 are fixedly connected with a gear 533. The rack 534 corresponds to the gear 533 one by one and meshes with each other, and is connected to the two ends of the worm 532. One of the two racks 534 that mesh with the gear 533 is fixedly connected to the transverse movement seat 10, and the other is fixedly connected to the longitudinal movement seat 11. The gears 533 at both ends of the worm 532 are not in a meshing state at the same time. During the movement of the detection head 1, the rack 534 on the transverse movement seat 10 meshes with the corresponding gear 533 to drive the worm wheel 531 and the worm 532 to rotate, so that the control shaft 51 rotates to control the vertical movement seat 42 to rise and fall through the control unit 52. At this time, the rack 534 fixedly connected to the longitudinal movement seat 11 is not meshed with the corresponding gear 533. Similarly, the detection head 1 During the detection process of head 2, the rack 534 on the longitudinal movement seat 11 engages with the corresponding gear 533 to drive the worm wheel 531 and the worm 532 to rotate, so that the control shaft 51 rotates to control the vertical movement seat 42 to rise and fall through the control unit 52. At this time, the rack 534 fixedly connected to the transverse movement seat 10 is not engaged with the corresponding gear 533. The self-locking function of the worm wheel 531 and the worm 532 is utilized to make the rack 534 on the transverse movement seat 10 and the rack 534 on the longitudinal movement seat 11 switch to each other and enter a meshing state, thereby stably controlling the vertical movement seat 42 to move up and down synchronously.

[0027] See Figure 2 and Figure 3, the control component 43 includes a limit member 431, a limit groove 432, a tightening member 433 and a locking member 434. The limit groove 432 is symmetrically distributed on the left and right and is opened on the vertical displacement seat 42. The limit member 431 corresponds to the limit groove 432 one by one and the limit member 431 is fixedly connected to the sliding frame 41. The limit member 431 moves up and down in the corresponding limit groove 432, and the tightening member 433 is slidably connected to the vertical displacement seat 42. The tightening member 433 is a rod-shaped structure and the tightening member 433 is threadedly connected to the locking member 434. The locking member 434 is rotatably connected to the vertical displacement seat 42. During the detection work of the detection head 1 and the detection head 2, the tightening member 433 is in a non-tightened state. Figure 2 As shown, at this time, the lower end of the fastening member 433 is located in the vertical displacement seat 42, and when the detection head 33 performs detection work, it is only necessary to rotate the locking member 434 to move the fastening member 433 downward, and accordingly drive the sliding frame 41 downward until the limiting member 431 cannot move due to the restriction of the limiting groove 432. At this time, the sliding frame 41 and the fastening member 433 are in a state of being fastened and locked, so that the sliding frame 41 and the vertical displacement seat 42 are in a relatively fixed state.

[0028] See Figure 1 、 Figure 2 and Figure 3 , an adjusting member 435 is slidably provided in the limiting groove 432, and the adjusting member 435 is used to control the moving range of the limiting member 431, such as Figure 3 As shown, the adjusting member 435 is a limit block and its movement is controlled by a screw. The moving range of the limit member 431 is controlled by moving the position of the adjusting member 435, and the distance between the sliding frame 41 and the vertical displacement seat 42 in a relatively fixed state is correspondingly controlled, thereby adjusting the position height of the detection head 3 3, so that the detection head 3 3 can detect objects 7 of different heights within a certain range. Due to the change in the height of the sliding frame 41, the height of the limit head 45 needs to be changed accordingly. Therefore, an adjusting seat 436 is provided between the limit head 45 and the sliding frame 41. The adjusting seat 436 is used to adjust the position height of the limit head 45, and the position height of the adjusting seat 436 can also be adjusted by a screw.

[0029] See Figure 1A pressure plate 46 is vertically slidably installed on the vertical displacement seat 42, and a locking piece 47 is provided between the pressure plate 46 and the vertical displacement seat 42. When the detection head 3 is performing detection work, the pressure plate 46 can be flatly connected with the detection head 3 as needed and locked in the current position through the locking piece 47, thereby increasing the coverage area of the detection head 3, so that the detection head 3 can detect objects 7 of different sizes within a certain range, for example, several columns of objects 7 can be detected at the same time, simulating the state of the objects 7 being transported in a column-arranged storage manner, further improving the reliability of the detection structure, wherein the locking piece 47 can be an existing buckle, and when the pressure plate 46 moves to the preset position, the locking piece 47 can lock it in the current position.

[0030] See Figure 1 、 Figure 2 and Figure 3 The limit head 45 includes a transverse limit portion 451 and a longitudinal limit portion 452. The transverse limit portion 451 cooperates with the detection head 1, and the longitudinal limit portion 452 cooperates with the detection head 2. Figure 3 As shown, the transverse limiting part 451 and the longitudinal limiting part 452 are both inclined limiting axes, and the inclined limiting axes constitute an inclined limiting area. The detection head 1 and the detection head 2 are both provided with rollers 48 that cooperate with the transverse limiting part 451 and the longitudinal limiting part 452. The rollers 48 on the detection head 1 cooperate with the transverse limiting part 451 to move the sliding frame 41 upward, and the rollers 48 on the detection head 2 cooperate with the longitudinal limiting part 452 to move the sliding frame 41 upward. Among them, the bottom surfaces of the detection head 1 and the detection head 2 are both provided with rollers, and the rollers move on the platform 6 as the corresponding detection head 1 or detection head 2 moves to provide support for the corresponding detection head 1 and detection head 2.

[0031] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections, integral or sliding connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0033] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A beverage packaging performance testing device, characterized in that: include: a platform (6) for placing an object to be measured (7); Detection head one (1), detection head two (2) and detection head three (3), detection head one (1) and detection head two (2) are symmetrically distributed and apply pressure to the object to be measured (7) from the horizontal direction and the vertical direction respectively, and detection head one (1) and detection head two (2) do not work at the same time, and detection head three (3) applies pressure to the object to be measured (7) from the vertical direction; An adjusting head (4), the adjusting head (4) includes a vertical displacement seat (42) provided with a sliding frame (41) for vertical sliding movement, a control component (43) provided on the vertical displacement seat (42), an elastic member (44) provided between the sliding frame (41) and the vertical displacement seat (42), a limit head (45) provided on the sliding frame (41), and a detection head (3) mounted on the sliding frame (41); The linkage control mechanism (5) controls the vertical displacement seat (42) to move up and down synchronously through the linkage control mechanism (5) when any one of the symmetrical detection heads (1) and the symmetrical detection head (2) move in opposite directions synchronously. During the detection work of the detection head 1 (1) and the detection head 2 (2), the sliding frame (41) and the vertical displacement seat (42) are in an elastic connection state, and the detection head 3 (3) elastically limits the object to be measured (7) before the detection head 1 (1) or the detection head 2 (2) applies pressure to the object to be measured (7), and during the process of the detection head 1 (1) or the detection head 2 (2) applying pressure to the object to be measured (7), the detection head 1 (1) or the detection head 2 (2) limits the limit head (45), so that the sliding frame (41) moves upward and automatically releases the limit of the detection head 3 (3) on the object to be measured (7); during the detection work of the detection head 3 (3), the sliding frame (41) is in a relatively fixed state with the vertical displacement seat (42) under the control of the control component (43), so that the detection head 3 (3) completes the detection work before the detection head 1 (1) or the detection head 2 (2) contacts the object to be measured (7).

2. The beverage packaging performance testing device according to claim 1, characterized in that: The linkage control mechanism (5) includes a control shaft (51), a control unit (52) and a linkage unit (53). The control shaft (51) controls the vertical displacement seat (42) to move up and down through the control unit (52). During the movement of the detection head 1 (1) and the detection head 2 (2), the control shaft (51) is rotated through the linkage unit (53). The linkage unit (53) includes a worm wheel (531), a worm (532), a gear (533) and a rack (534). The worm wheel (531) is fixedly connected to the control shaft (51). The worm (532) is meshed with the worm wheel (531), and both ends of the worm (532) are fixedly connected with gears (533), and the racks (534) correspond one-to-one to the gears (533) at both ends of the worm (532), and the gears (533) at both ends of the worm (532) are not in a meshing state at the same time. The racks (534) corresponding one-to-one to the gears (533) at both ends of the worm (532) correspond to the detection head one (1) and the detection head two (2), respectively, and the racks (534) move synchronously with the corresponding detection head one (1) or detection head two (2).

3. The beverage packaging performance testing device according to claim 1, characterized in that: The control assembly (43) includes a limiting member (431), a limiting groove (432), a pressing member (433) and a locking member (434). The limiting groove (432) is provided on the vertical displacement seat (42). The limiting member (431) is fixedly connected to the sliding frame (41) and the limiting member (431) moves in the limiting groove (432). The pressing member (433) is slidably connected to the vertical displacement seat (42). When the detection head 1 (1) and the detection head 2 (2) perform detection work, the pressing member (433) is in a non-pressing state. When the detection head 3 (3) performs detection work, the pressing member (433) presses against the sliding frame (41) and is locked by the locking member (434), so that the sliding frame (41) and the vertical displacement seat (42) are in a relatively fixed state.

4. The beverage packaging performance testing device according to claim 3, characterized in that: An adjusting member (435) is slidably provided in the limiting groove (432), and the adjusting member (435) is used to control the moving range of the limiting member (431). An adjusting seat (436) is provided between the limiting head (45) and the sliding frame (41), and the adjusting seat (436) is used to adjust the position height of the limiting head (45). The pressing member (433) is a rod-shaped structure and the pressing member (433) is threadedly connected to the locking member (434), and the locking member (434) is rotatably connected to the vertical displacement seat (42).

5. The beverage packaging performance testing device according to claim 1 or 4, characterized in that: The limiting head (45) comprises a transverse limiting portion (451) and a longitudinal limiting portion (452), wherein the transverse limiting portion (451) cooperates with the first detection head (1), and the longitudinal limiting portion (452) cooperates with the second detection head (2).

6. A beverage packaging performance testing device according to claim 1 or 4, characterized in that: A pressure plate (46) is vertically slidably mounted on the vertical displacement seat (42), and a locking member (47) is provided between the pressure plate (46) and the vertical displacement seat (42). When the detection head three (3) performs detection work, the pressure plate (46) and the detection head three (3) are flatly connected together and locked in the current position by the locking member (47), thereby increasing the coverage area of the detection head three (3).

7. The beverage packaging performance testing device according to claim 5, characterized in that: The transverse limiting portion (451) and the longitudinal limiting portion (452) are both provided with an inclined limiting area, and the detection head 1 (1) and the detection head 2 (2) are both provided with a roller (48) corresponding to the inclined limiting area.

8. The beverage packaging performance testing device according to claim 1, characterized in that: The bottom surfaces of the detection head 1 (1) and the detection head 2 (2) are both provided with rollers, and the rollers move on the platform (6) as the corresponding detection head 1 (1) or detection head 2 (2) moves.

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