Automatic feeding forming machine for heaven and earth covers

Abstract

The utility model relates to an automatic top and bottom cover feeding forming machine which comprises a rack and a mold driving mechanism, a forming mechanism and an automatic feeding mechanism which are arranged on the rack, the automatic feeding mechanism comprises two linear modules, and the two linear modules are located on the two sides of a lifting path of an upper mold and a lower mold correspondingly and connected with the rack; a first mounting seat is arranged on a piston of each linear module, a first transverse air cylinder is arranged on each first mounting seat, telescopic shafts of the two first transverse air cylinders are oppositely arranged, a second mounting seat is arranged at the end of the telescopic shaft of each first transverse air cylinder, and a vertical air cylinder is arranged on each second mounting seat; a telescopic shaft of each vertical air cylinder faces downwards, first clamping strips parallel to the linear module are arranged on the side, away from the second mounting base, of the end of each vertical air cylinder, and the two first clamping strips are symmetrically arranged. The two first clamping strips clamp a paper box rough blank and are driven by the linear die to move to the position between the upper die set and the lower die to achieve automatic feeding of the paper box rough blank.

Description

Technical Field

[0001] This application relates to the technical field of carton forming, and more specifically, it relates to an automatic loading and forming machine for lid-and-bottom cartons. Background Art

[0002] A lid-and-bottom carton is a type of carton lid, such as those used for wine boxes, mobile phone boxes, shoe boxes, and other packaging cartons. A lid-and-bottom carton includes a grey board box and packaging paper. The forming of a lid-and-bottom carton refers to wrapping the packaging paper around the grey board box, and the combination of the packaging paper and the grey board box is usually by adhesive bonding.

[0003] Currently, there are forming machines for lid-and-bottom cartons on the market. Their main structures include a frame, a die driving mechanism and a forming mechanism arranged on the frame. The die driving mechanism is driven with an upper die and a lower die. The upper die and the lower die are arranged in an up-and-down alignment. The die driving mechanism is used to drive the upper die and the lower die to approach or move away from each other and drive the upper die and the lower die to move up and down synchronously. The forming mechanism is arranged on the lifting path of the upper die and the lower die. During use, a rough blank of a carton formed by initially combining the packaging paper and the grey board box manually is placed on the lower die. The die driving mechanism drives the upper die and the lower die to approach each other to clamp the rough blank of the carton. The die driving mechanism drives the upper die and the lower die to move synchronously to move the rough blank of the carton to the working position of the forming mechanism to form the rough blank of the carton into a lid-and-bottom carton. Using manual operation to place the rough blank of the carton on the lower die is not conducive to the development of carton forming automation, with low efficiency and high labor costs for enterprises. Summary of the Utility Model

[0004] In order to solve the problem that the forming machine for lid-and-bottom cartons on the market currently uses manual operation to place the rough blank of the carton on the lower die, which is not conducive to the development of carton forming automation, with low efficiency and high labor costs for enterprises, this application provides an automatic loading and forming machine for lid-and-bottom cartons.

[0005] An automatic feeding and forming machine for the top and bottom cover, comprising a frame and a die driving mechanism, a forming mechanism, and an automatic feeding mechanism arranged on the frame. The die driving mechanism drives an upper die and a lower die which are vertically aligned. The die driving mechanism drives the upper die to approach or move away from the lower die and drives the upper die and the lower die to lift synchronously. The forming mechanism is arranged on the lifting path of the upper die and the lower die. The automatic feeding mechanism includes two linear modules. The two linear modules are respectively located on both sides of the lifting paths of the upper die and the lower die and are fixed by connecting with the frame. A first mounting seat is arranged on the piston of each linear module. A first horizontal cylinder is arranged on each first mounting seat. The telescopic shafts of the two first horizontal cylinders are arranged towards each other. And a second mounting seat is arranged at the end of the telescopic shaft of each first horizontal cylinder. A vertical cylinder is arranged on each second mounting seat. The telescopic shaft of each vertical cylinder faces downward, and a first clamping strip parallel to the linear module is arranged on the side of the end of the telescopic shaft away from the second mounting seat. The two first clamping strips are symmetrically arranged.

[0006] Through the synchronous drive of the two linear modules, the two first mounting seats move synchronously. By moving the two first mounting seats out of the frame synchronously, the vertical cylinder drives the first clamping strip to descend, realizing the alignment of the two first clamping strips with the paper box blanks placed outside. Through the drive of the two first horizontal cylinders, the two second mounting seats move towards each other, causing the two first clamping strips to move towards each other to clamp the paper box blanks. Then, through the drive of the vertical cylinder, the first clamping strip rises to clamp the paper box blanks to the position between the upper die and the lower die. By driving the first mounting seat to move through the linear module, the paper box blanks clamped by the two first clamping strips are transported to the position between the upper die and the lower die. By driving the upper die and the lower die to approach each other through the die driving mechanism, the paper box blanks are clamped. By driving the upper die and the lower die to move synchronously through the die driving mechanism, the paper box blanks are moved to the working position of the forming mechanism to form the paper box blanks into the top and bottom cover. By using the machine to replace manual feeding, it is beneficial to accelerate the development of the automation of paper box forming, with a higher feeding efficiency, reducing the use of labor and lowering the labor cost of the enterprise.

[0007] Preferably, abutting blocks and clamping cylinders are arranged on the sides of the two first clamping strips away from the vertical cylinders. The abutting blocks and the clamping cylinders are arranged at intervals in the length direction of the first clamping strip, and the telescopic shaft of the clamping cylinder faces the abutting block. A pressing block is arranged at the end of the telescopic shaft of the clamping cylinder.

[0008] By adopting the above technical solution, after the two first clamping strips clamp the rough paper box blank, the clamping cylinder drives the pressing block to move towards the pressing block. The pressing block pushes the rough paper box blank to make the rough paper box blank abut against the pressing block, so as to position the rough paper box blank, which is convenient for the rough paper box blank to be accurately aligned with the upper die and the lower die, and the feeding of the rough paper box blank is accurate.

[0009] Preferably, a feeding support table and a discharging support table are respectively arranged on both sides of the frame. The upper die and the lower die are located between the feeding support table and the discharging support table. The two linear modules are located above the feeding support table and the discharging support table and span the feeding support table and the discharging support table. Each first mounting seat is equipped with an extension arm extending from the feeding support table towards the discharging support table. A second transverse cylinder is arranged at one end of each extension arm far away from the first mounting seat. The telescopic shafts of the two second transverse cylinders are arranged towards each other, and a second clamping strip is arranged at the end of the telescopic shaft of each second transverse cylinder. The second clamping strip is parallel to the linear module and the two second clamping strips are symmetrically arranged.

[0010] By adopting the above technical solution, the two first clamping strips clamp the rough paper box blank, and the linear module drives the rough paper box blank to move to a position above the feeding support table, and the vertical cylinder drives the first clamping strip to descend to place the rough paper box blank on the feeding support table. The linear module drives the two second clamping strips to align with the rough paper box blank placed on the feeding support table, and the two second transverse cylinders drive the two second clamping strips to clamp the rough paper box blank. The linear module drives the rough paper box blank clamped by the second clamping strip to move between the upper module and the lower die, realizing the feeding of the rough paper box blank. By reasonably setting the distance between the first clamping strip and the second clamping strip, when the two second clamping strips place the rough paper box blank between the upper die and the lower die, the two first clamping strips are in the placement position for aligning the external rough paper box blank, which is beneficial to realizing the feeding of the rough paper box blank by the upper die and the lower die while the two first clamping strips clamp the external rough paper box blank for material preparation, and is beneficial to improving the feeding efficiency of the rough paper box blank.

[0011] Preferably, the frame is provided with a spacing adjustment component, which includes two locking bars, two fixing plates and at least two guide rods. The two guide rods are fixedly arranged on the frame at intervals. The two fixing plates are each provided with sliding sleeves corresponding to the number of guide rods. Each sliding sleeve on each fixing plate is respectively penetrated by a corresponding guide rod. The two fixing plates are supported by the guide rods and the two guide rods are arranged in parallel. A linear module is fixedly connected to the bottom side of one fixing plate and is parallel to the fixing plate. The other linear module is fixedly connected to the bottom side of the other fixing plate and is parallel to the fixing plate. The two locking bars are fixedly arranged on the frame and are respectively located at both ends of the fixing plate close to the end face of the fixing plate and are parallel to the guide rods. Each end of each fixing plate is provided with a locking block, and each locking block is provided with a threaded hole. Each locking bar is provided with a strip-shaped hole. The fixing plate is fixed by a bolt passing through the strip-shaped hole and pressing against the locking bar and being threadedly connected to the threaded hole of the locking block.

[0012] By adopting the above technical solution, loosen the bolt to enable the two fixing plates to slide on the guide rods, which is convenient for adjusting the spacing between the two linear modules to match the loading of paper box blanks of different sizes, and has high compatibility.

[0013] To sum up, the present application includes at least one of the following beneficial technical effects:

[0014] 1. Through the synchronous drive of the two linear modules, the two first mounting seats move synchronously. By moving the two first mounting seats out of the frame synchronously, the vertical cylinder drives the first clamping strip to descend, so as to realize the alignment of the two first clamping strips with the paper box blank placed outside. Through the drive of the two first transverse cylinders, the two second mounting seats move towards each other, so that the two first clamping strips move towards each other to clamp the paper box blank. Then, the vertical cylinder drives the first clamping strip to rise to clamp the paper box blank to the position between the upper die and the lower die. By driving the first mounting seat to move through the linear module, the paper box blank clamped by the two first clamping strips is conveyed to the position between the upper die and the lower die. By driving the upper die and the lower die to approach each other through the die driving mechanism, the paper box blank is clamped. By driving the upper die and the lower die to move synchronously through the die driving mechanism, the paper box blank is moved to the working position of the forming mechanism to form the paper box blank into a lid and bottom box. By using a machine to replace manual feeding, it is beneficial to accelerate the development of the automation of paper box forming. The feeding efficiency is relatively high, and the use of manual labor is reduced, thus reducing the labor cost of the enterprise.

[0015] 2. After the two first clamping strips clamp the paper box blank, the clamping cylinder drives the pressing block to move towards the pressing block. The pressing block pushes the paper box blank to make the paper box blank abut against the pressing block to position the paper box blank, which is convenient for the paper box blank to be accurately aligned with the upper die and the lower die, and the feeding of the paper box blank is accurate.

[0016] 3. By setting the extension arm, the second lifting cylinder, the second clamping strip and the feeding support table, while the upper die and the lower die perform the rough blank feeding of the paper box, the two first clamping strips clamp the external rough paper box blanks for material preparation, which is beneficial to improving the feeding efficiency of the rough paper box blanks.

[0017] 4. The spacing adjustment component is adopted to adjust the spacing between the two linear modules to match the rough paper box blanks of different sizes for feeding, with high compatibility. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1.

[0019] Figure 2 It is a schematic diagram of the connection structure of the spacing adjustment component and the automatic feeding mechanism of Embodiment 1.

[0020] Figure 3 It is a schematic diagram of the connection structure of the spacing adjustment component and the automatic feeding mechanism of Embodiment 2.

[0021] Reference numerals: 1. Frame; 11. Spacing adjustment component; 111. Locking strip; 112. Fixed plate; 1121. Sliding sleeve; 1122. Locking block; 113. Guide rod; 12. Feeding support table; 13. Discharging support table; 2. Die driving mechanism; 21. Upper die driving component; 22. Lower die driving component; 23. Upper die; 24. Lower die; 3. Forming mechanism; 4. Automatic feeding mechanism; 41. Linear module; 42. First mounting seat; 421. Slide bar; 422. Sliding sleeve; 43. First horizontal cylinder; 44. Second mounting seat; 441. Vertical cylinder; 442. First clamping strip; 443. Slide rail; 444. Slide block; 445. Abutting block; 446. Clamping cylinder; 447. Pressing block; 45. Extension arm; 46. Second horizontal cylinder; 47. Second clamping strip; Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] Embodiment 1

[0024] Refer to Figure 1 and Figure 2, An automatic feeding and forming machine for the upper and lower covers, comprising a frame 1, a die driving mechanism 2, a forming mechanism 3, and an automatic feeding mechanism 4 arranged on the frame 1. The die driving mechanism 2 includes an upper die driving component 21 and a lower die set driving component. The top of the upper die driving component 21 is connected to the frame 1, and the bottom drives and is provided with an upper die 23 (not shown in the figure). The lower die driving component 22 is located below the upper die driving component 21. The bottom end of the upper die driving component 21 is fixedly connected to the frame 1, and the top drives and is provided with a lower die 24. The upper die 23 and the lower die 24 are arranged in an up-and-down alignment. The upper die driving component 21 drives the upper die 23 to move up and down, and the lower die driving component 22 drives the lower die 24 to move up and down, realizing the upper die 23 and the lower die 24 approaching or moving away from each other and driving the upper die 23 and the lower die 24 to move up and down synchronously. The upper die 23 and the lower die 24 approaching or moving away from each other realizes clamping or releasing the clamping of the paper box blank. The upper die 23 and the lower die 24 moving up and down synchronously realizes driving the paper box blank to move up and down when clamping the paper box blank. The forming mechanism 3 is arranged on the lifting path of the upper die set and the lower die set. The upper die 23 and the lower die 24 drive the paper box blank to move up and down to realize the function of feeding the paper box blank to the working position of the forming mechanism 3 to perform forming operations on the paper box blank. The upper die driving component 21 and the lower die driving component 22 can both be selected as lifting cylinders or a combination of a servo motor and a lead screw, etc., which are lifting driving components that provide a clearance position between the upper die 23 and the lower die set.

[0025] Refer to Figure 1 and Figure 2, the frame 1 is provided with a spacing adjustment assembly 11. The spacing adjustment assembly 11 includes two locking bars 111, two fixing plates 112 and four guide rods 113. The four guide rods 113 are divided into two groups, with two guide rods 113 in each group. The combination of the two groups of guide rods 113 is distributed on both sides of the upper die 23 and the lower die 24. The two fixing plates 112 are both provided with sliding sleeves 1121 that match the vertical direction of the guide rods 113. A guide rod 113 is respectively passed through the sliding sleeve 1121 on each fixing plate 112. The two fixing plates 112 are supported by the guide rods 113 and the two guide rods 113 are arranged in parallel. The automatic feeding mechanism 4 includes two linear modules 41. One linear module 41 is fixedly connected to the bottom side of one fixing plate 112 and is parallel to the fixing plate 112. The other linear module 41 is fixedly connected to the bottom side of the other fixing plate 112 and is parallel to the fixing plate 112. The two linear modules 41 are symmetrically arranged and are above the forming mechanism 3. By sliding the two fixing plates 112 on the guide rods 113, the spacing between the two linear modules 41 is adjusted. The two locking bars 111 are fixedly arranged on the frame 1 and are respectively close to the end faces of the two ends of the fixing plate 112 and are parallel to the guide rods 113. Locking blocks 1122 are arranged at both ends of each fixing plate 112. Each locking block 1122 is provided with a threaded hole. Each locking bar 111 is provided with a strip-shaped hole. The fixing plate 112 is fixed by a bolt passing through the strip-shaped hole and pressing against the locking bar 111 and being threadedly connected to the threaded hole of the locking block 1122. By loosening the bolt, the fixing plate 112 slides on the guide rod 113.

[0026] Referring to Figure 2 , a first mounting seat 42 is arranged on the piston of each linear module 41. A first horizontal cylinder 43 is arranged on each first mounting seat 42. The telescopic shafts of the two first horizontal cylinders 43 face each other. And a second mounting seat 44 is arranged at the end of the telescopic shaft of each first horizontal cylinder 43. Driven by the first horizontal cylinder 43, the two second mounting seats 44 move closer to or away from each other. A sliding rod 421 is arranged horizontally on the first mounting seat 42. A sliding sleeve 422 is slidably arranged on the sliding rod 421. The second mounting seat 44 is fixedly connected to the sliding sleeve 422. The second mounting seat 44 is strongly supported by the sliding rod 421. A vertical cylinder 441 is arranged on each second mounting seat 44. The telescopic shaft of each vertical cylinder 441 faces downward and a first clamping bar 442 parallel to the linear module 41 is arranged on the side of the end away from the second mounting seat 44. The two first clamping bars 442 are symmetrically arranged. Driven by the two vertical cylinders 441, the two first clamping bars 442 synchronously descend. Vertical slide rails 443 are arranged on the second mounting seats 44. A slider 444 is arranged on the side of the first clamping bar 442 close to the second mounting seat 44. The slider 444 is slidably connected to the slide rail 443, making the lifting of the first clamping bar 442 more stable.

[0027] Referring to Figure 2 , further, on one side of the two first clamping strips 442 away from the vertical cylinder 441, abutting blocks 445 and clamping cylinders 446 are arranged. The abutting blocks 445 and the clamping cylinders 446 are arranged at intervals in the length direction of the first clamping strips 442, and the telescopic shafts of the clamping cylinders 446 face the abutting blocks 445. At the end of the telescopic shaft of the clamping cylinder 446, a pressing block 447 is arranged, and the clamping cylinder 446 drives the pressing block 447 to move towards the direction of the abutting block 445.

[0028] The implementation principle of Embodiment 1 is as follows: The two linear modules 41 drive the two first mounting seats 42 to move synchronously, so that the two first clamping strips 442 move out of the frame 1 from one side of the frame 1. Driven by the two vertical cylinders 441, the two first clamping strips 442 are lowered to the placement position for aligning with the outer carton blank. Driven by the two first horizontal cylinders 43, the carton blank is clamped. The clamping cylinder 446 drives the pressing block 447 to move towards the direction of the abutting block 445, so as to push the carton blank to abut against the abutting block 445 to position the carton blank for accurate feeding of the carton blank. Moreover, the pressing block 447 and the abutting block 445 clamp the carton blank to further fix the carton blank so that the carton blank is not easy to slide out of the first clamping strip 442. Driven by the two vertical cylinders 441, the two first clamping strips 442 are raised to clamp and align the carton blank between the upper module and the lower module. The linear module 41 drives the first mounting seat 42 to move, so as to clamp the carton blank to align it between the upper die 23 and the lower die 24 and feed the carton blank onto the upper die 23 and the lower die 24.

[0029] Embodiment 2

[0030] Referring to Figure 3 , the difference between Embodiment 2 and Embodiment 1 is that: feeding support platforms 12 and discharging support platforms 13 are respectively arranged on both sides of the frame 1. The upper die 23 and the lower die 24 are located between the feeding support platform 12 and the discharging support platform 13. The two linear modules 41 are above the feeding support platform 12 and the discharging support platform 13 and span the feeding support platform 12 and the discharging support platform 13. Each first mounting seat 42 is equipped with an extension arm 45 extending from the feeding support platform 12 to the discharging support platform 13. At one end of each extension arm 45 away from the first mounting seat 42, a second horizontal cylinder 46 is arranged. The telescopic shafts of the two second horizontal cylinders 46 are arranged towards each other, and at the end of the telescopic shaft of each second horizontal cylinder 46, a second clamping strip 47 is arranged. The second clamping strip 47 is parallel to the linear module 41, and the two second clamping strips 47 are symmetrically arranged.

[0031] The implementation principle of Embodiment 2 is as follows: Two vertical cylinders 441 are driven to lower two first clamping strips 442 to the placement position of the outer corrugated paper box blank. Then, two first horizontal cylinders 43 are driven to make two second clamping strips 47 approach each other to clamp the corrugated paper box blank. The clamping cylinder 446 is driven to make the pressing block 447 press against the corrugated paper box blank, pressing the corrugated paper box blank against the abutting block 445 to further clamp the corrugated paper box blank and position the corrugated paper box blank. Two vertical cylinders 441 are driven to raise two first clamping strips 442 to drive the corrugated paper box blank to rise above the loading support table 12. Two linear modules 41 are driven to make two first clamping strips 442 drive the corrugated paper box blank to move to the position of the loading support table 12. Two vertical cylinders 441 are driven to lower two first clamping strips 442 to place the corrugated paper box blank on the loading support table 12, and the clamping cylinder 446 is driven to make the pressing block 447 move away from the abutting block 445. Two first horizontal cylinders 43 are driven to make two first clamping strips 442 move away from each other to release the clamping of the corrugated paper box blank. Two linear modules 41 are driven to make two second clamping strips 47 move to the position of the loading support table 12, and two second horizontal cylinders 46 are driven to make two second clamping strips 47 approach each other to clamp the corrugated paper box blank. Then, two linear modules 41 are driven to make the corrugated paper box blank clamped by two second clamping strips 47 move between the upper mold 23 and the lower mold 24, realizing the loading of the corrugated paper box blank. By reasonably setting the distance between the first clamping strip 442 and the second clamping strip 47, when two second clamping strips 47 place the corrugated paper box blank between the upper mold 23 and the lower mold 24, two first clamping strips 442 are at the placement position of the outer corrugated paper box blank, enabling two first clamping strips 442 to repeat the above operations to clamp the corrugated paper box blank for material preparation, which is convenient for improving the loading efficiency of the corrugated paper box blank. Further, when the corrugated paper box blank is formed into a lid and bottom box, two second clamping strips 47 clamp the lid and bottom box. The linear module 41 is driven to make the corrugated paper box blank clamped by two first clamping strips 442 move to the position of the loading support table 12, and the lid and bottom box clamped by two second clamping strips 47 move to the position of the unloading support table 13, which is beneficial to realizing material preparation and unloading simultaneously and is convenient for improving production efficiency.

[0032] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding and forming machine for upper and lower covers, comprising a frame, a mold driving mechanism and a forming mechanism arranged on the frame. The mold driving mechanism drives an upper mold and a lower mold which are vertically aligned. The mold driving mechanism drives the upper mold to approach or move away from the lower mold and drives the upper mold and the lower mold to lift and lower synchronously. The forming mechanism is arranged on the lifting path of the upper mold and the lower mold, and is characterized in that: It further includes an automatic feeding mechanism, and the automatic feeding mechanism includes two linear modules. The two linear modules are respectively located on both sides of the lifting paths of the upper die and the lower die and are fixed by connecting to the frame. A first mounting seat is provided on the piston of each linear module, and a first transverse cylinder is provided on each first mounting seat. The telescopic shafts of the two first transverse cylinders are arranged towards each other, and a second mounting seat is provided at the end of the telescopic shaft of each first transverse cylinder. A vertical cylinder is provided on each second mounting seat, the telescopic shaft of each vertical cylinder faces downward, and a first clamping strip parallel to the linear module is provided on the side of the end of each telescopic shaft away from the second mounting seat. The two first clamping strips are symmetrically arranged.

2. The automatic loading and forming machine for the lid and base according to claim 1, wherein: Abutting blocks and clamping cylinders are provided on the sides of the two first clamping strips away from the vertical cylinders. The abutting blocks and the clamping cylinders are arranged at intervals in the length direction of the first clamping strip, and the telescopic shaft of the clamping cylinder faces the abutting block. A pressing block is provided at the end of the telescopic shaft of the clamping cylinder.

3. The automatic loading and forming machine for the lid and base according to claim 1, wherein: Feeding support platforms and discharging support platforms are respectively arranged on both sides of the frame. The upper die and the lower die are located between the feeding support platform and the discharging support platform. The two linear modules straddle the feeding support platform and the discharging support platform. An extension arm extending from the feeding support platform to the discharging support platform direction is installed on each first mounting seat. A second transverse cylinder is provided at the end of each extension arm away from the first mounting seat. The telescopic shafts of the two second transverse cylinders are arranged towards each other, and a second clamping strip is provided at the end of the telescopic shaft of each second transverse cylinder. The second clamping strip is parallel to the linear module and the two second clamping strips are symmetrically arranged.

4. The automatic loading and forming machine for the lid and base according to claim 1, wherein: A spacing adjusting component is provided on the frame. The spacing adjusting component includes two locking strips, two fixing plates and at least two guide rods. The two guide rods are fixedly arranged at intervals on the frame. Sliding sleeves corresponding to the number of guide rods are provided on both fixing plates. The sliding sleeve on each fixing plate respectively has a corresponding guide rod passing through it. The two fixing plates are supported by the guide rods and the two guide rods are arranged in parallel. A linear module is fixedly connected to the bottom side of one fixing plate and is parallel to this fixing plate, and the other linear module is fixedly connected to the bottom side of the other fixing plate and is parallel to this fixing plate. The two locking strips are fixedly arranged on the frame and are respectively located at both ends of the fixing plate close to the end face of the fixing plate and are parallel to the guide rods. Locking blocks are provided at both ends of each fixing plate, and threaded holes are opened in each locking block. Each locking strip is provided with a strip hole. The fixing plate is fixed by a bolt passing through the strip hole to press against the locking strip and being threadedly connected to the threaded hole of the locking block.

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