CN210690237U - Carton compression testing machine - Google Patents
Carton compression testing machine Download PDFInfo
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- CN210690237U CN210690237U CN201921165735.4U CN201921165735U CN210690237U CN 210690237 U CN210690237 U CN 210690237U CN 201921165735 U CN201921165735 U CN 201921165735U CN 210690237 U CN210690237 U CN 210690237U
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Abstract
The utility model discloses a carton compression testing machine, which comprises a base, wherein a speed reducing motor is fixed on one side of the base, the output shaft of the speed reducing motor is connected with a first chain wheel, the first chain wheel is connected with a second chain wheel through chain transmission, the second chain wheel is connected with a third chain wheel through chain transmission, the second chain wheel and the third chain wheel are both in key connection with screw rods, the upper end parts of the two screw rods are rotatably connected with a cross beam through bearings, the two screw rods are both in threaded transmission connection with transmission nuts, the transmission nuts are embedded at two sides of the moving block, a pressure sensor is fixed at the lower side of the middle of the moving block, the lower end of the pressure sensor is closely contacted with an upper pressing block, a pressing mechanism is arranged between the upper pressing block and the moving block, the lower end of the upper pressing block is provided with a lower pressing block matched with the upper pressing block, and the lower pressing block is fixed on the base through a bolt. The compression resistance test of the carton is realized, the structure is simple, the operation is convenient, and the manufacturing cost is low.
Description
Technical Field
The utility model belongs to the technical field of carton compression testing machine, concretely relates to carton compression testing machine.
Background
With the development and progress of enterprises, the carton has been widely used as a packaging material. Meanwhile, packaging becomes a large factor influencing the development of enterprises, so that the performance of the carton is paid more and more attention, and the corresponding carton compression testing machine is used more and more generally. The compression resistance test of the carton needs to meet certain structural requirements, the quality of carton products is tested through a series of pressure tests under the condition of meeting the requirements, corresponding test data are accurately obtained through a sensor, and the result can be used as an important reference for stacking the packaging height of finished products in a factory or an important basis for designing a packaging box, so that the carton compression resistance test machine is a detection instrument commonly used by carton production enterprises.
Most of the carton compression testing machines of present mill are complicated in structure, complex in operation, high in manufacturing cost, and power transmission mode loss is big moreover, causes the energy extravagant, for this reason, we propose a simple structure, convenient operation, the novel carton compression testing machine that the energy consumption is low solves the problem that exists among the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a carton compression testing machine to it is complicated to solve the most structure of carton compression testing machine who provides current mill among the above-mentioned background art, complex operation, and manufacturing cost is high, and power transmission mode loss is big moreover, causes the energy extravagant, for this reason, we provide a simple structure, convenient operation's problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a carton compression testing machine comprises a base, wherein an electric cabinet is fixed on one side of the upper end of the base, a speed reducing motor is fixed at the bottom end of the interior of the electric cabinet, a first chain wheel is in key connection with the end part of an output shaft of the speed reducing motor, the first chain wheel is positioned in the base, one side of the first chain wheel is connected with a second chain wheel through chain transmission, one side of the second chain wheel, which is far away from the first chain wheel, is connected with a third chain wheel through chain transmission, the second chain wheel and the third chain wheel are in key connection with screw rods, the lower side of the screw rods is rotatably connected with an installation block through bearings, the installation block is fixed on the upper end of the base, the end parts of the upper ends of the two screw rods are rotatably connected with a cross beam through bearings, transmission nuts are in threaded transmission connection with the two screw rods, the transmission nuts are, the lower end of the pressure sensor is in close contact with an upper pressing block, a pressing mechanism is arranged between the upper pressing block and the moving block, a lower pressing block matched with the upper pressing block is arranged at the lower end of the upper pressing block, and the lower pressing block is fixed on the base through a bolt.
Preferably, the pressing mechanism comprises a connecting plate, the two connecting plates are symmetrically fixed to two sides of the lower end of the moving block, connecting rods penetrate through two sides of the connecting plate, and the connecting rods are fixed to the upper pressing block.
Preferably, a baffle is fixed at the end part of the upper end of the connecting rod, a spring is arranged between the baffle and the upper pressing block, and the spring is sleeved on the connecting rod.
Preferably, guide rods are fixedly connected between the two ends of the cross beam and the mounting block, guide sleeves are connected to the outer sides of the guide rods in a sliding mode, and the guide sleeves are embedded on the two sides of the moving block.
Preferably, the guide rod and the outer side of the screw rod are provided with protective covers, the upper ends of the protective covers are fixedly connected with the cross beam, and the lower ends of the protective covers are fixedly connected with the base.
Preferably, a cover plate is fixed at the upper end of the upper pressing block, a through hole is formed in the middle of the cover plate, and the lower end of the pressure sensor penetrates through the through hole to be in close contact with the upper pressing block.
Preferably, the centering scale marks are arranged on the lower pressing block.
Preferably, a tensioning chain wheel is arranged on one side of the middle of the first chain wheel and the second chain wheel, the tensioning chain wheel is located inside the base, and the tensioning chain wheel is rotatably connected with the base.
Preferably, tensioning sprockets are also arranged on two sides of the middle of the second sprocket and the third sprocket.
Preferably, rib plates are arranged on the side walls around the inside of the base.
The utility model discloses a technological effect and advantage: the utility model provides a pair of carton compression testing machine compares with prior art, has following advantage:
1. the utility model discloses a gear motor drives first sprocket and rotates, and then first sprocket passes through the chain and drives the second sprocket rotation, and then the second sprocket passes through the chain and drives the third sprocket rotation, and then second sprocket and third sprocket drive the lead screw of base both sides simultaneously, with fast, the syntropy is rotatory, and then lead screw drive nut moves from top to bottom along the lead screw, and then drive nut drives the movable block and moves from top to bottom along the guide bar, and then the movable block drives upper briquetting and moves from top to bottom, upper briquetting drives pressure sensor and moves from bottom to top, and then upper briquetting and lower briquetting cooperate and compress tightly the carton, pressure sensor collects pressure data and carries out the analysis, simple structure, low in manufacturing cost, convenient operation, power transmission loss is few;
2. the utility model discloses a be fixed with the connecting rod on last briquetting, the upper end of connecting rod runs through the connecting plate, and the connecting plate is fixed on the movable block, and the top of connecting rod is fixed with the baffle, is provided with the spring between baffle and the connecting plate, and the spring cup joints on the connecting rod, keeps briquetting and carton upper surface laminating completely under the spring action of spring, makes the carton atress even, accords with the actual circumstances of piling up of carton, improves measured data's accuracy.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged view of the point A of the present invention;
FIG. 4 is an enlarged view of the point B of the present invention;
FIG. 5 is a view of the internal structure of the base of the present invention;
FIG. 6 is a drawing of a structure of an upper pressing block of the present invention;
fig. 7 is a control principle system block diagram of the present invention;
FIG. 8 is a circuit schematic of the master control circuit;
FIG. 9 is a schematic diagram of a drive circuit of the reduction motor;
fig. 10 is a schematic circuit diagram of a display module.
Reference numerals: 1. a base; 2. an electric cabinet; 3. a reduction motor; 4. a first sprocket; 5. a second sprocket; 6. a third sprocket; 7. a screw rod; 8. mounting blocks; 9. a cross beam; 10. a drive nut; 11. a moving block; 12. a pressure sensor; 13. pressing the blocks; 14. a hold-down mechanism; 141. a connecting plate; 142. a connecting rod; 143. a baffle plate; 144. a spring; 15. pressing the block; 16. a guide bar; 17. a guide sleeve; 18. a protective cover; 19. a cover plate; 20. a via hole; 21. centering the scale marks; 22. a tension sprocket; 23. a rib plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a carton compression testing machine as shown in figures 1-6, which comprises a base 1, wherein an electric cabinet 2 is fixed on one side of the upper end of the base 1, a speed reducing motor 3 is fixed on the bottom end of the interior of the electric cabinet 2, the speed reducing motor 3 is needed because the equipment needs slow descending speed, the end part of the output shaft of the speed reducing motor 3 is connected with a first chain wheel 4, the first chain wheel 4 is positioned in the base 1, one side of the first chain wheel 4 is connected with a second chain wheel 5 through chain transmission, one side of the second chain wheel 5 far away from the first chain wheel 4 is connected with a third chain wheel 6 through chain transmission, the second chain wheel 5 and the third chain wheel 6 are both connected with a lead screw 7 through key connection, the lower side of the lead screw 7 is connected with an installation block 8 through bearing rotation, the installation block 8 is fixed on the upper end of the base 1, and the upper end parts of the two lead screws 7 are connected with, the two lead screws 7 are connected with transmission nuts 10 in a threaded transmission mode, the transmission nuts 10 are embedded on two sides of a moving block 11, a pressure sensor 12 is fixed to the lower side of the middle of the moving block 11, an upper pressing block 13 is in close contact with the lower end of the pressure sensor 12, a pressing mechanism 14 is arranged between the upper pressing block 13 and the moving block 11, a lower pressing block 15 matched with the upper pressing block 13 is arranged at the lower end of the upper pressing block 13, and the lower pressing block 15 is fixed on the base 1 through bolts. The upper pressing block 13 and the lower pressing block 15 are both made into an empty frame shape, which not only meets the working requirement, but also saves materials, and meets the requirements of light weight and convenient installation.
Preferably, the pressing mechanism 14 includes two connecting plates 141, the two connecting plates 141 are symmetrically fixed to two sides of the lower end of the moving block 11, a connecting rod 142 penetrates through two sides of the connecting plates 141, and the connecting rod 142 is fixed to the upper pressing block 13.
Through adopting above-mentioned technical scheme, realize being connected of connecting plate 141 and movable block 11 through connecting rod 142, simple structure, it is with low costs.
Preferably, a baffle 143 is fixed to an upper end of the connecting rod 142, a spring 144 is disposed between the baffle 143 and the upper pressing block 13, and the spring 144 is sleeved on the connecting rod 142.
By adopting the technical scheme, the upper pressing block 13 is kept to be completely attached to the upper surface of the carton under the elastic force action of the spring 144, so that the carton is stressed uniformly, the actual stacking condition of the carton is met, and the accuracy of the measured data is improved.
Preferably, a guide rod 16 is fixedly connected between both ends of the cross beam 9 and the mounting block 8, a guide sleeve 17 is slidably connected to the outer side of the guide rod 16, and the guide sleeve 17 is embedded on both sides of the moving block 11.
Through adopting above-mentioned technical scheme, realize spacing to movable block 11, make things convenient for movable block 11's upper and lower fixed, realize supporting fixedly, improve the fastness of device to crossbeam 9 simultaneously.
Preferably, a protective cover 18 is arranged on the outer sides of the guide rod 16 and the screw rod 7, the upper end of the protective cover 18 is fixedly connected with the cross beam, and the lower end of the protective cover 18 is fixedly connected with the base 1.
Through adopting above-mentioned technical scheme, the setting of safety cover 18 keeps apart guide bar 16 and lead screw 7 with the external world, avoids external the entering, influences normal work, avoids simultaneously that the staff contacts with them, harms the health, improves the security.
Preferably, a cover plate 19 is fixed on the upper end of the upper pressing block 13, a through hole 20 is arranged in the middle of the cover plate 19, and the lower end of the pressure sensor 12 penetrates through the through hole 20 to be in close contact with the upper pressing block 13.
Through adopting above-mentioned technical scheme, make pressure sensor 12 direct and last briquetting 13 contact rather than follow the apron 19 contact on the briquetting 13, because apron 19 when following the briquetting 13 laminating, inevitable has some gaps, if pressure sensor 12 does not direct and last briquetting 13 contact, then probably has great measuring error.
Preferably, the upper surface of the lower pressing block 15 is provided with a centering scale 21.
Through adopting above-mentioned technical scheme, centering scale mark 21 can be to rectangle and circular shape packaging material centering, and the purpose of centering is in order to more accord with the design and piles up, only when box or oil drum are located briquetting 15 center down, just can guarantee when going up briquetting 13 and push down that pressure is in carton or oil drum central point, after all, no matter is the production of pressure or piles up of storage in-process, and its pressure direction is mostly in the center vertically downwards.
Preferably, a tension chain wheel 22 is arranged at one side between the first chain wheel 4 and the second chain wheel 5, the tension chain wheel 22 is positioned inside the base 1, the tension chain wheel 22 is rotatably connected with the base 1,
by adopting the above technical solution, since the chain transmission of the first sprocket 4 and the second sprocket 5 is in a horizontal arrangement, tensioning of the tensioning sprocket 22 is required.
Preferably, tensioning sprockets 22 are also arranged on two sides of the middle of the second sprocket 5 and the third sprocket 6.
By adopting the above technical solution, since the chain transmission of the second chain wheel 5 and the third chain wheel 6 is also in a horizontal arrangement, tensioning by the tensioning chain wheel 22 is also required, and two tensioning chain wheels 22 are provided, because the span is larger here, and the two tensioning chain wheels 22 work more stably and reliably.
Preferably, rib plates 23 are disposed on the inner peripheral side wall of the base 1.
Through adopting above-mentioned technical scheme, setting up of floor 23 improves the fastness and the stability of base 1.
1. Known conditions
● weight of workbench
m＝250kg
● moving speed of working table
V＝12mm/s
● expected life
Lh 30000 hours
● reducing the motor speed
n＝1500(r/min)
● reduction motor reduction ratio
i＝10
● coefficient of friction of ball screw
μ＝0.02
2. Ball screw accuracy grade
As only the upper pressure plate is required to be ensured to descend stably, the requirement on the precision grade of the ball screw is not high, the ball screw only needs to be rolled, and the precision grade can be selected from C8
3. Ball screw lead
The work table descends slowly and the ball screw with small lead is selected
According to the nominal lead of the ball screw,
selected L is 5mm
4. Basic rated dynamic load
Average load Fm:
rise at uniform speed
Fa1＝mg+μmg＝250x9.8+0.02x250x9.8＝2499N
Descend at uniform speed
Fa2＝mg-μmg＝250x9.8-0.02x250x9.8＝2401N
Average load
Average rotating speed:
basic rated dynamic load
The actual required time of the carton compression testing machine is short, and the net operation life time L is takenh0Taking the running coefficient f as 15000 hoursw＝1.1
5. Determination of the outer diameter of a ball screw
The lead and the basic dynamic load rating select the outer diameter of the ball screw.
Ball screw type selection meter
According to the above table, a ball screw with an outer diameter of 25mm was selected
6. Ball screw length
According to the overall dimension of the equipment and the actual requirement, the length of the screw rod is selected to be 1000mm
In conclusion, the model of the screw rod is R25-5T1-2FSDC-1000 and 1500-0.018
7. Allowable axial load checking
Tolerant of axial loading
Is far greater than the maximum axial load 2499N and meets the requirement
Far greater than the rotating speed of the screw rod of 144r/min, meets the requirements
Design of speed reducing motor
1. Known conditions
● total table mass
m＝250kg
● moving speed of workbench
V＝12mm/s
● axle diameter of ball screw
d＝25mm
● lead of ball screw
L＝5mm
● reducing the motor speed
n＝1500r/min
2. Determination of the reduction ratio of a geared motor
Since the main motion mode of the carton compression testing machine is the pressing motion of the upper pressing plate, the pressing motion needs to be ensured to be slow, stable and reliable, and therefore the rotation of the screw rod also needs to be slow. In the process that the motor drives the screw rod to rotate through chain transmission, the transmission ratio of the chain transmission is 1.1, the chain transmission only plays a role in power transmission with large span at the moment, and hardly plays a role in reducing the rotating speed of the motor, so that the reducing motor is selected to ensure that the output shaft of the motor has low rotating speed.
Required rotating speed n1 of output shaft of speed reducing motor
Reduction ratio of reduction motor
Selecting a reduction ratio i of 10
3. Determination of the power of a geared motor
66.624w according to the required power P1 of the screw rod
Obtaining the power required by chain transmission
Thereby obtaining the power required by the output shaft of the motor
P3＝P2＝69.4w
Depending on the power required and the rated power of the motor,
selecting the motor power as 100w
4. Total torque of load
Taking into account torque according to the required power and reduction ratio
To sum up, the Chengbang brand speed reducing motor is selected, and the model number of the motor is CV100- (3-50) S
Chain drive design
1. Sprocket selection
The small gear of the roller chain is taken as 25, the chain transmission aims to mainly drive the two screw rods to rotate, the requirement on the transmission ratio is not large, so the large gear is taken as 27 to ensure that the roller chains are meshed in a staggered mode, the service life of the roller chains is prolonged, and the transmission ratio is 1.1 at the moment.
2. Selection of roller chains
Calculation of screw power P1:
screw rod torque
Considering the safety factor of 2 as the result,
angular velocity of screw
Power required by the rod
P1＝·w＝·4.8π＝66.624w
Calculation of roller chain power P2:
roller chain transmission efficiency of 0.96
Power required by roller chain
Rotational speed of driving wheel
n＝144x 1.1＝158.4r/min
As shown in fig. 7 and 8, a touch display screen connected to a main control circuit arranged in the electric cabinet 2 is installed on the outer surface of the electric cabinet 2, the main control circuit is an STM32F407VET6 single chip microcomputer with a communication circuit and a peripheral circuit, and in the aspect of a motor interface, the electric cabinet comprises up to 17 timers, wherein 2 special three-phase motor control designed 16-bit advanced timers, 4 common timer interfaces which CAN be commonly used in hall and incremental encoders, each timer is provided with 4 input traps, 4 output traps and a PWM output function, in the aspect of communication, communication interfaces such as CAN, UART, SPI, I2C, high-speed USB and ethernet are integrated, and in the aspect of analog digital sampling, 3 12-bit and 2.4MSPS a/D converters are integrated. In terms of memory, the memory has 512Kb Flash program storage and 192Kb SRAM program running space, and the conditions are enough to satisfy the vector control function of the speed reducing motor, no other storage or communication chips need to be added, and more importantly, the chip packaged by the LQFP100 has the size of only 14 multiplied by 3 mm.
As shown in fig. 9, the speed reduction motor is connected with the main control circuit through the frequency converter, and when the frequency converter is used, soft start can be realized, and impact current is reduced. The frequency converter has strong protection function, can detect various problems at any time, display fault types in the operation process and immediately cut off output voltage. The self-protection function not only protects the inverter, but also protects the motor from being damaged easily. After comprehensive consideration and comparison, the system decides to use a frequency converter of the Taida VFD-007-M-43 type.
As shown in fig. 10, the display module uses a liquid crystal with a resolution of 128 × 64 to display data, and the display module directly uses 5V voltage provided by the battery to supply power (V _ BAT), and uses I as the main control module chip2And C, carrying out data interaction in the communication mode. The SDA pin and the SCK pin are data communication pins and are mainly responsible for data transmission between the display module and the main control chip. The CD pin is an instruction and data selection interface of the liquid crystal module, and the liquid crystal module can identify whether the control instruction or the data required to be displayed is transmitted by the main control chip by changing the level on the CD pin. The RES pin is a pin reset pin, and when the pin is kept to work normally, the pin needs to be set to be at a low level to ensure normal display of the module. The CS pin is a chip selection pin of the display module, and the display module can keep normal communication with the main control module only when the pin is set to be at a low level. The BL interface is mainly controlled by the main control chip to the backlight switch of the display module, and when the BL interface is set to a high level, the display module can normally turn on the backlight.
The working principle is as follows: firstly, a product to be tested is placed on a lower pressing block 15, the product is placed at the central position of the lower pressing block 15 according to a centering scale mark 21, a speed reducing motor 3 is started, the speed reducing motor 3 drives a first chain wheel 4 to rotate, the first chain wheel 4 drives a second chain wheel 5 to rotate through a chain, the second chain wheel 5 drives a third chain wheel 6 to rotate through the chain, the second chain wheel 5 and the third chain wheel 6 simultaneously drive lead screws 7 on two sides of a base 1 to rotate at the same speed and in the same direction, the lead screws 7 drive transmission nuts 10 to move downwards along the lead screws 7, the transmission nuts 10 drive moving blocks 11 to move downwards along guide rods 16, the moving blocks 11 drive upper pressing blocks 13 to move downwards, and the upper pressing blocks 13 drive pressure sensors 12 to move downwards until the upper pressing blocks 13 are in contact with the product on the lower pressing block 15;
the connecting rod 142 is fixed on the upper pressing block 13, the upper end of the connecting rod 142 penetrates through the connecting plate 141, the connecting plate 141 is fixed on the moving block 11, the baffle 143 is fixed at the top end of the connecting rod 142, the spring 144 is arranged between the baffle 143 and the connecting plate 141, the spring 144 is sleeved on the connecting rod 142, the upper pressing block 13 is kept to be completely attached to the upper surface of a product under the elastic force action of the spring 144, and the stress of the product is uniform;
continue to drive briquetting 13 downstream, and then go up briquetting 13 and lower briquetting 15 cooperation and compress tightly the product, pressure sensor 12 collects pressure data and feeds back to electrical control equipment, carries out a series of input/output's control, just so can record the ultimate pressure of product from this, perhaps the permissible pressure value that the deformation degree corresponds, gear motor 3 antiport after finishing detecting, and then go up briquetting 13 and leave the product along guide bar 16 upward movement, whole testing process finishes.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (10)
1. The utility model provides a carton compression testing machine, includes base (1), its characterized in that: an electric cabinet (2) is fixed on one side of the upper end of the base (1), a speed reducing motor (3) is fixed at the bottom end of the interior of the electric cabinet (2), a first chain wheel (4) is in key connection with the end portion of an output shaft of the speed reducing motor (3), the first chain wheel (4) is located inside the base (1), a second chain wheel (5) is connected to one side of the first chain wheel (4) through chain transmission, a third chain wheel (6) is connected to one side, away from the first chain wheel (4), of the second chain wheel (5) and the third chain wheel (6) through chain transmission, a lead screw (7) is in key connection with each other, an installation block (8) is rotatably connected to the lower side of the lead screw (7) through a bearing, the installation block (8) is fixed on the upper end of the base (1), and the end portions of the upper ends of the two lead screws (7) are rotatably connected with, the two lead screws (7) are connected with transmission nuts (10) in a threaded transmission mode, the transmission nuts (10) are embedded on two sides of a moving block (11), a pressure sensor (12) is fixed to the lower side of the middle of the moving block (11), an upper pressing block (13) is in close contact with the lower end of the pressure sensor (12), a pressing mechanism (14) is arranged between the upper pressing block (13) and the moving block (11), a lower pressing block (15) matched with the upper pressing block (13) is arranged at the lower end of the upper pressing block (13), and the lower pressing block (15) is fixed to the base (1) through bolts.
2. The carton compression tester of claim 1, wherein: the pressing mechanism (14) comprises two connecting plates (141), the two connecting plates (141) are symmetrically fixed to two sides of the lower end of the moving block (11), connecting rods (142) penetrate through two sides of the connecting plates (141), and the connecting rods (142) are fixed to the upper pressing block (13).
3. The carton compression tester of claim 2, wherein: a baffle (143) is fixed at the end part of the upper end of the connecting rod (142), a spring (144) is arranged between the baffle (143) and the upper pressing block (13), and the spring (144) is sleeved on the connecting rod (142).
4. The carton compression tester of claim 1, wherein: guide rods (16) are fixedly connected between the two ends of the cross beam (9) and the mounting block (8), guide sleeves (17) are connected to the outer sides of the guide rods (16) in a sliding mode, and the guide sleeves (17) are embedded on the two sides of the moving block (11).
5. The carton compression tester of claim 4, wherein: the guide rod (16) and the outer side of the screw rod (7) are provided with a protective cover (18), the upper end of the protective cover (18) is fixedly connected with the cross beam, and the lower end of the protective cover is fixedly connected with the base (1).
6. The carton compression tester of claim 1, wherein: a cover plate (19) is fixed to the upper end of the upper pressing block (13), a through hole (20) is formed in the middle of the cover plate (19), and the lower end of the pressure sensor (12) penetrates through the through hole (20) to be in close contact with the upper pressing block (13).
7. The carton compression tester of claim 1, wherein: and a centering scale mark (21) is arranged on the lower pressing block (15).
8. The carton compression tester of claim 1, wherein: one side of the middle of the first chain wheel (4) and the second chain wheel (5) is provided with a tension chain wheel (22), the tension chain wheel (22) is located inside the base (1), and the tension chain wheel (22) is rotationally connected with the base (1).
9. The carton compression tester of claim 8, wherein: tensioning chain wheels (22) are also arranged on two sides of the middle of the second chain wheel (5) and the third chain wheel (6).
10. The carton compression tester of claim 1, wherein: ribbed plates (23) are arranged on the side wall around the inside of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165735.4U CN210690237U (en) | 2019-07-23 | 2019-07-23 | Carton compression testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165735.4U CN210690237U (en) | 2019-07-23 | 2019-07-23 | Carton compression testing machine |
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| Publication Number | Publication Date |
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| CN210690237U true CN210690237U (en) | 2020-06-05 |
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ID=70900232
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| CN201921165735.4U Active CN210690237U (en) | 2019-07-23 | 2019-07-23 | Carton compression testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274828A (en) * | 2019-07-23 | 2019-09-24 | 东莞理工学院 | A kind of compression testing machine for cardboard box |
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2019
- 2019-07-23 CN CN201921165735.4U patent/CN210690237U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274828A (en) * | 2019-07-23 | 2019-09-24 | 东莞理工学院 | A kind of compression testing machine for cardboard box |
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