CN217752616U - Mould locking device - Google Patents

Abstract

The application discloses a mold locking device, which comprises a rack, a front template, a rear template, a driving component and a positioning component, wherein the front template is arranged on the rack in a sliding manner, the rear template is arranged on the rack and is opposite to the front template, the driving component is used for driving the front template to slide relative to the rear template, the positioning component is arranged between the front template and the rear template, the driving component is arranged on the rack and is connected with the front template, the positioning component comprises a synchronizing gear, a first rack and a second rack, the synchronizing gear is rotationally arranged on the rack, the first rack and the second rack are arranged in parallel, the first rack and the second rack are meshed with the synchronizing gear, the first rack is fixedly connected with the front template, and the second rack is fixedly connected with the rear template; this application has the effect that reduces the probability that mode locking device and mould collided at centre gripping mould's in-process.

Description

Mould locking device

Technical Field

The application relates to the field of plastic product molding machines, and more particularly, to a mold locking device.

Background

The plastic products can be molded without leaving molding equipment such as injection molding machines, blow molding machines and the like. The existing plastic product forming equipment generally comprises a mold, and after plastic is injected into the mold for forming, a mold locking device is used for clamping and fixing the mold so as to move the mold.

The existing mold locking device comprises a rack, a front template fixedly arranged on the rack, a rear template arranged on the rack in a sliding manner and a driving assembly used for driving the rear template to slide. The driving assembly is connected with the front template and is suitable for driving the front template to slide towards the direction close to or far away from the rear template. When the mold locking device is used for clamping a mold, the front template and the rear template slide to the outside of the mold relative to the rack, one side of the rear template, facing the front template, is attached to the surface of the mold, and the driving assembly drives the front template to slide towards the direction close to the rear template, so that the mold is clamped by the wall template and the rear template, and the mold is moved conveniently.

In view of the above-mentioned related art, the inventor believes that the rear mold plate easily collides with the mold in the process of sliding close to the mold, and damages the mold.

SUMMERY OF THE UTILITY MODEL

In order to reduce the probability that the mode locking device collides with the mould in the process of clamping the mould, the application provides a mode locking device.

The application provides a mode locking device adopts following technical scheme:

the utility model provides a mode locking device, includes the frame, slide the front mould board that sets up in the frame, slide the setting in the frame and with the back template that the front mould board is relative, be used for the drive the front mould board with back template drive assembly that slides relatively with set up and be in the front mould board with locating component between the back template, drive assembly sets up in the frame and with the front mould board links to each other, locating component includes synchronous gear, first rack and second rack, synchronous gear rotates the setting in the frame, first rack with second rack parallel arrangement, just first rack with the second rack all with synchronous gear engagement, first rack with front mould board fixed connection, the second rack with back template fixed connection.

By adopting the technical scheme, the front template and the rear template are arranged on the rack in a sliding manner, and the driving assembly drives the front template to slide relative to the rear template so as to clamp the mold for mold supply, thereby facilitating the movement of the mold; the positioning assembly is arranged between the front template and the rear template so as to enable the front template and the rear template to synchronously move towards or away from each other; the first rack and the second rack are both meshed with the synchronous gear, so that when the front template slides, the first rack slides relative to the rack to drive the synchronous gear to rotate, the second rack is driven to slide, and the rear template slides; from this, when centre gripping mould, the mould is placed in the middle of preceding template and back template, starts drive assembly drive front and back template synchronous centre gripping mould that slides in opposite directions to reduce the probability that back template slided the in-process that is close to the mould and collides with the mould.

Preferably, the mode locking device further comprises a connecting arm, the connecting arm is fixedly connected between the rear template and the driving assembly, and the driving assembly is arranged on the rack in a sliding mode.

By adopting the technical scheme, the driving assembly is connected with the rear template through the connecting arm, so that the rear template, the driving assembly and the front template are connected into a whole, and the strength of the mold locking device is increased; meanwhile, when the driving assembly pushes the front template to slide towards the direction close to the rear template, the reaction force of the front template on the driving assembly drives the driving assembly to slide towards the direction far away from the front template, so that the rear template is pulled to slide towards the direction close to the front template; when the driving assembly pulls the front template towards the direction far away from the rear template, the reaction force of the front template on the driving assembly pulls the driving assembly towards the direction close to the front template, so that the connecting arm drives the rear template to slide towards the direction far away from the front template, and the synchronism of the front template and the rear template during sliding is ensured.

Preferably, a first connecting strip is arranged on the front template, a first connecting hole is formed in the first connecting strip, and one end of the first rack penetrates through the first connecting hole; a second connecting strip is arranged on the rear template, a second connecting hole is formed in the second connecting strip, and one end of the second rack penetrates through the second connecting hole; the first rack is provided with a first positioning piece for fixing the first rack on the first connecting strip, and the second rack is provided with a second positioning piece for fixing the second rack on the second connecting strip.

By adopting the technical scheme, the mounting mode of the first rack and the front template and the mounting mode of the second rack and the rear template are disclosed; the first rack is connected with the front template through a first connecting strip, and the installation length of the first rack can be adjusted by adjusting the penetrating position of the first rack in the first connecting hole; the mounting length of the second rack can be adjusted by adjusting the penetrating position of the second rack penetrating in the second connecting hole; after the installation lengths of the first rack and the second rack are set, the first positioning piece fixes the first rack, and the second fixing piece fixes the second rack, so that the adjustable installation of the first rack and the second rack is realized; the installation length here refers to the length of the end of the first rack and the second rack that face each other.

Preferably, the first positioning member comprises two first positioning nuts, an external thread is arranged on the first rack, the two first positioning nuts are sleeved on the first rack at intervals, and the first connecting strip is positioned between the two first positioning nuts; the second positioning piece comprises two second positioning nuts, external threads are arranged on the second rack, the two second positioning nuts are sleeved on the second rack at intervals, and the second connecting strip is located between the two second positioning nuts.

By adopting the technical scheme, the structures of the first positioning piece and the second positioning piece are disclosed, and the two first positioning nuts are in threaded connection with the first rack and are respectively arranged on two sides of the first connecting strip, so that the adjustable arrangement of the first rack is realized; two second set nuts all with second rack threaded connection, and two second set nuts establish respectively in second connecting strip both sides, realize the adjustable setting of second rack from this.

Preferably, the drive assembly comprises a rotary drive member, a crank and a connecting rod; the crank is connected with a rotating shaft of the rotary driving piece and is suitable for being driven by the rotary driving piece to rotate; one end of the connecting rod is rotatably connected with the crank, and the end, far away from the crank, of the connecting rod is rotatably connected with the front template.

By adopting the technical scheme, the structure of the driving assembly is disclosed; the driving piece is rotated to drive the crank to rotate, so that the crank drives the connecting rod to swing, and the front template slides relative to the rack.

Preferably, the driving assembly is provided with an installation groove, and one end of the connecting arm, which is far away from the rear template, is inserted into the installation groove; the driving component is provided with a first mounting hole which penetrates through the side wall of the mounting groove and is communicated with the mounting groove, the connecting arm is close to one end of the driving component, a second mounting hole which is aligned to the first mounting hole is formed in the end of the driving component, and a connecting shaft is arranged in the first mounting hole and the second mounting hole in a penetrating mode.

By adopting the technical scheme, the driving assembly is provided with the mounting groove, and the connecting arm is inserted into the mounting groove and connected with the driving assembly, so that the contact area between the connecting arm and the driving assembly is increased, and the connection between the driving assembly and the connecting arm is more stable; the connecting shaft penetrates through the first mounting hole and the second mounting hole simultaneously to be connected with the driving assembly, and therefore the connecting arm and the driving assembly are convenient to mount.

Preferably, one end of the connecting shaft is located outside the first mounting hole and is provided with a first rotation stopping groove, the outer edge of the orifice of the first mounting hole is provided with a second rotation stopping groove communicated with the first rotation stopping groove, and a rotation stopping block is fixed in the first rotation stopping groove and the second rotation stopping groove at the same time.

Through adopting above-mentioned technical scheme, rotate the connecting axle and make first groove and the second groove intercommunication that splines, will spline the piece and inlay simultaneously and establish in first groove and the second groove that splines, can make the relative drive assembly of connecting axle fixed, increased the stability of mode locking device.

Preferably, a plurality of reinforcing ribs are arranged on the front template.

Through adopting above-mentioned technical scheme, the strengthening rib has strengthened the mechanism intensity of front form.

Preferably, the synchronous gear housing is provided with a gear cover, and the gear cover is provided with a first abdicating hole for the first rack to pass through and a second abdicating hole for the second rack to pass through.

By adopting the technical scheme, the synchronous gear cover is arranged on the synchronous gear outer cover and protects the synchronous gear, so that the synchronous gear is not easy to be damaged due to collision of external articles; the first hole of stepping down lets for first rack, and the second hole of stepping down lets for the second rack, and the first rack of being convenient for and the second rack spreads into in the gear cover and meshes with synchronous gear.

Preferably, the first rack is worn to establish the first downthehole part cover of stepping down is equipped with a first axle sleeve, the second rack is worn to establish the second downthehole part cover of stepping down is equipped with the second axle sleeve, first axle sleeve is located the first downthehole that steps down, the second axle sleeve is located the second is stepped down downthehole.

Through adopting above-mentioned technical scheme, first axle sleeve sets up outside first rack for reduce the friction of first rack and pinion mask, and the second axle sleeve sets up outside the second rack for reduce the friction of second rack and pinion mask.

In summary, the present application has the following beneficial effects:

1. a positioning assembly is arranged between a front template and a rear template, so that the front template and the rear template synchronously move towards or away from each other; when the mold is clamped, the mold is placed between the front template and the rear template, and the driving assembly is started to drive the front template and the rear template to slide oppositely and synchronously clamp the mold, so that the probability of collision between the rear template and the mold in the process of sliding to be close to the mold is reduced;

2. the driving assembly is connected with the rear template through the connecting arm, so that the rear template, the driving assembly and the front template are connected into a whole, and the strength of the mold locking device is improved;

3. the utility model provides a rotation driving piece drive crank rotates to the crank drives the connecting rod swing, and then makes the relative frame of front template slide, has reduced the impact force that front template received from this, and is more stable when making front template and back template centre gripping mould.

Drawings

Fig. 1 is an overall schematic diagram of an embodiment of the present application.

Fig. 2 is a partial schematic view of an embodiment of the present application.

Fig. 3 is an exploded view of a positioning assembly according to an embodiment of the present application.

FIG. 4 is a schematic illustration of a rear template of an embodiment of the present application.

Fig. 5 is an enlarged view at a in fig. 2 of the embodiment of the present application.

Description of the reference numerals:

1. a frame; 11. a mounting seat; 111. positioning the shaft; 112. a sliding groove; 12. a slide rail; 2. a front template; 21. front slide block 22, front mold clamping plate; 221. a front clamping face; 222. reinforcing ribs; 23. a first connecting bar; 231. a first connection hole; 3. a rear template; 31. a second connecting strip; 311. a second connection hole; 32. a rear slider; 33. a rear mold clamping plate; 331. a rear clamping surface; 332. a limiting hole; 333. a connecting plate; 334. a fixing hole; 4. a positioning assembly; 41. a synchronizing gear; 411. positioning holes; 42. a first rack; 43. a first positioning nut; 44. a second rack; 45. a second positioning nut; 46. a gear cover; 461. a first abdicating hole; 462. a second abdicating hole; 463. a first bushing; 464. a second shaft sleeve; 5. a drive assembly; 51. rotating the driving member; 511. a drive motor; 512. a gear case; 5121. mounting grooves; 5122. a first mounting hole; 5123. a second rotation stopping groove; 513. driving the slide block; 52. a crank; 53. a connecting rod; 6. a connecting arm; 61. a second mounting hole; 62. a connecting shaft; 621. a first rotation stopping groove; 622. a rotation stopping block; 63. and fixing the shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-5 and the embodiments.

The embodiment of the application discloses a mode locking device, refer to fig. 1, a mode locking device, including frame 1, the preceding template 2 of setting in frame 1 that slides, slide and set up in frame 1 and with preceding template 2 relative back template 3, set up preceding template 2 with locating component 4 between the back template 3, be used for driving preceding template 2 and the drive assembly 5 that back template 3 slided relatively.

The rack 1 includes a mounting seat 11 and a slide rail 12 disposed on the mounting seat 11. The slide rail 12 may be provided only on the mount 11, or two or more slide rails may be provided on the mount 11. In this embodiment, two slide rails 12 are arranged in parallel on the mounting base 11.

Referring to fig. 2, the front mold plate 2 includes a front slide 21 for engaging the slide rail 12, a front mold clamping plate 22 fixedly disposed above the front slide 21, and a first connecting bar 23 for connecting the positioning assembly 4.

The front slide block 21 is matched with the slide rail 12 and can slide relative to the slide rail 12, so that the front template 2 is arranged on the machine frame 1 in a sliding mode. One or more front sliders 21 may be provided on one slide rail 12, or one or more front sliders may be provided on each of the two slide rails 12. In this embodiment, the front slider 21 is provided with one of the two slide rails 12.

Referring to fig. 2, the front mold clamping plate 22 has a front clamping surface 221, and the front clamping surface 221 is located on a side of the front mold clamping plate 22 close to the rear mold plate 3. The front clamping surface 221 is a rectangular surface to facilitate the front mold clamping plate 22 to fit the mold and clamp the mold.

Referring to fig. 2, a plurality of ribs 222 are fixedly disposed on a side of the front mold clamping plate 22 away from the front clamping surface 221. The plurality of ribs 222 are arranged in a criss-cross pattern to form a grid structure to reinforce the structural strength of the front mold clamping plate 22.

The first connecting bar 23 is a T-shaped member, one end of which is fixed to the slide block or the front mold clamping plate 22, and the other end of which is suspended below the front mold clamping plate 22 and located outside the mounting base 11.

Referring to fig. 2 and 3, the positioning assembly 4 includes a synchronizing gear 41, a first rack 42, and a second rack 44. The synchronizing gear 41 is rotatably disposed outside the mounting seat 11, the first rack 42 and the second rack 44 are disposed in parallel, and both the first rack 42 and the second rack 44 are engaged with the synchronizing gear 41. The first rack 42 may be located above the second rack 44 or below the second rack 44. The first rack 42 is located below the second rack 44 in this embodiment. The positioning assembly 4 may be disposed on both sides of the mounting seat 11, or may be disposed on only one side of the mounting seat 11. The positioning assembly 4 is provided with one only on one side of the mounting 11 in this embodiment.

The first rack 42 is in a cylindrical shape, and has an external thread at one end and engaging teeth at the upper side of the other end. First connecting strip 23 is provided with first connecting hole 231 matched with first rack 42, and the matching here means that the end of first rack 42 provided with the external thread can be inserted into first connecting hole 231 and can slide relative to first connecting strip 23.

A first positioning member is disposed outside the first rack 42. The first positioning element comprises two first positioning nuts 43, the two first positioning nuts 43 are sleeved on the first rack 42 at intervals, and the two first positioning nuts 43 are respectively located on two sides of the first connecting bar 23. When the first rack 42 is installed, the first rack 42 passes through one first positioning nut 43, then passes through the first connecting hole 231, and then passes through the other first positioning nut 43. The two first positioning nuts 43 clamp the first connecting bar 23, thereby achieving a fixed connection of the first rack 42 relative to the front formwork 2. The installation length of the first rack 42 can be adjusted by adjusting the two first positioning nuts 43 at the same time.

The synchronizing gear 41 is disposed outside the mount 11. A positioning shaft 111 is fixed on the mounting seat 11, and a positioning hole 411 is formed in the center of the synchronizing gear 41. The positioning shaft 111 is rotatably disposed in the positioning hole 411 to realize the rotational disposition of the synchronizing gear 41 with respect to the mount 11.

The upper side of the synchronizing gear 41 is engaged with the lower side of the first rack 42, so that the first rack 42 can drive the synchronizing gear 41 to rotate when sliding.

A gear cover 46 for protecting the synchronizing gear 41 is provided outside the synchronizing gear 41, and the gear cover 46 covers the synchronizing gear 41. Gear cover 46 can be connected with mount pad 11 is dismantled through modes such as joint, bolted connection, and gear cover 46 passes through the mode of joint and mount pad 11 fixed connection in this embodiment.

The gear cover 46 is provided with a first yielding hole 461 for the first rack 42 to pass through and a second yielding hole 462 for the second rack 44 to pass through. A first bushing 463 is disposed in the first yielding hole 461, and a second bushing 464 is disposed in the second yielding hole 462, so as to reduce the probability that the first rack 42 and/or the second rack 44 rubs against the gear cover 46 to damage the gear cover 46.

The first yielding holes 461 are respectively provided at opposite sides of the gear cover 46 and the two first yielding holes 461 are aligned with each other, so that the first rack 42 can slide back and forth through the gear cover 46. The second relief holes 462 are provided one on each of opposite sides of the gear cover 46 and the two second relief holes 462 are aligned with each other so that the second rack 44 can slide back and forth through the gear cover 46.

Referring to fig. 1 and 3, the second rack 44 has a cylindrical shape, one end of which is provided with an external thread, and the lower side of the other end is provided with teeth for engaging the synchronizing gear 41.

The rear template 3 comprises a second connecting strip 31 arranged outside the mounting seat 11, a rear sliding block 32 arranged on the sliding rail 12 in a sliding manner, and a rear template clamping plate 33 fixedly arranged above the rear sliding block 32.

The second connecting bar 31 is provided with a second connecting hole 311 adapted to the second rack 44, where the adaptation means that the end of the second rack 44 provided with the external thread can be inserted into the second connecting hole 311 and can slide relative to the second connecting bar 31.

A second positioning member is disposed outside the second rack 44. The second positioning member includes two second positioning nuts 45, the two second positioning nuts 45 are sleeved on the second rack 44 at intervals, and the two second positioning nuts 45 are respectively located at two sides of the second connecting strip 31. When the second rack 44 is installed, the second rack 44 passes through a second positioning nut 45, then is conveyed out of the second connecting hole 311, and then passes through the second positioning nut 45. Two second positioning nuts 45 clamp the second connecting strip 31, thereby achieving a fixed connection of the second rack 44 relative to the front formwork 2. The installation length of the second rack 44 can be adjusted by adjusting the two second positioning nuts 45 at the same time.

The rear slide block 32 is matched with the slide rail 12 and can slide relative to the slide rail 12, so that the rear template 3 is arranged on the machine frame 1 in a sliding mode. One or more rear sliders 32 may be disposed on one slide rail 12, or one or more rear sliders may be disposed on each of the two slide rails 12. In this embodiment, the rear slider 32 is disposed on each of the two slide rails 12.

Referring to fig. 4, the rear mold plate 33 has a rear clamping surface 331, and the rear clamping surface 331 is located on a side of the rear mold plate 33 adjacent to the front mold plate 2. The rear clamping surface 331 is a rectangular surface to facilitate the rear mold clamping plate 33 to fit the mold and clamp the mold.

Referring to fig. 2, the driving assembly 5 includes a rotary driving member 51, a crank 52, and a connecting rod 53; the crank 52 is connected with a rotating shaft of the rotary driving member 51 and is adapted to rotate under the driving of the rotary driving member 51; one end of the connecting rod 53 is hinged with the crank 52, and the end of the connecting rod 53 far away from the crank 52 is hinged with the front mold clamping plate 22. The rotation of the rotary driving member 51 drives the crank 52 to rotate and drive the connecting rod 53 to swing, so that the front mold plate 2 slides towards or away from the rear mold plate 3.

The rotary drive 51 includes a drive motor 511, a gear box 512, and a drive slider 513 disposed outside the gear box 512. A sliding groove 112 is formed in the mounting seat 11, the driving motor 511 is arranged in the sliding groove 112 and connected with the gear box 512, and the gear box 512 is arranged on the mounting seat 11 in a sliding mode through the driving sliding block 513. The driving slider 513 may be disposed on one slide rail 12 or disposed on two slide rails 12. In this embodiment, the driving slider 513 is disposed on each of the two slide rails 12.

A connecting arm 6 is connected between the rotary driving member 51 and the rear template 3, and the connecting arm 6 is positioned in the sliding slot 112. The connecting arm 6 is U-shaped, and has one end fixedly connected to the rear mold clamping plate 33 and the other end fixedly connected to the driving assembly 5. Therefore, the rear template 3, the driving component 5 and the front template 2 are connected into a whole, and the strength of the mold locking device is increased. The number of the connecting arms 6 can be designed according to the requirement, and the number of the connecting arms 6 is two in the embodiment, and the two connecting arms 6 are arranged in parallel.

Referring to fig. 2 and 5, specifically, two mounting grooves 5121 are formed in the gear box 512, and one ends of the two connecting arms 6, which are far away from the rear mold plate 3, are inserted into the mounting grooves 5121. The gear box 512 is provided with a first mounting hole 5122 penetrating through the side wall of the mounting groove 5121 and communicating with the mounting groove 5121, one end of the connecting arm 6 inserted into the mounting groove 5121 is provided with a second mounting hole 61 aligned with the first mounting hole 5122, and the first mounting hole 5122 and the second mounting hole 61 are simultaneously provided with a connecting shaft 62 in a penetrating manner so as to fix the connecting arm 6 and the driving component 5.

One end of the connecting shaft 62 is located outside the first mounting hole 5122 and is provided with a first rotation stopping groove 621, the outer edge of the orifice of the first mounting hole 5122 is provided with a second rotation stopping groove 5123 communicated with the first rotation stopping groove 621, and a rotation stopping block 622 is fixed in the first rotation stopping groove 621 and the second rotation stopping groove 5123 through bolts so that the connecting shaft 62 and the gear box 512 are relatively fixed, and the connecting arm 6 and the driving assembly 5 are more stably connected.

Referring to fig. 1, the rear mold clamping plate 33 is provided with two limiting holes 332 for allowing one ends of the two connecting arms 6 close to the rear mold plate 3 to pass through. One side interval that front form 2 was kept away from to back die plate 33 is provided with four connecting plates 333, fixed orifices 334 has all been seted up on four connecting plates 333, two linking arms 6 pass in the clearance between four connecting plates 333 of the one end of spacing hole 332, and two linking arms 6 pass the one end of spacing hole 332 and have all seted up the perforation, wear to be equipped with a fixed axle 63 in the fixed orifice 334, fixed axle 63 passes the perforation of the one end of two linking arms passing spacing hole 332 and realizes being connected of back die plate 33 and linking arm 6.

The implementation principle of the embodiment of the application is as follows:

when the mold locking device is used for locking the mold, the mold locking device is moved to the outside of the mold, the driving motor 511 is started, the crank 52 and the connecting rod 53 swing to push the front mold plate 2 to slide towards the direction close to the rear mold plate 3, at the moment, the first rack 42 slides towards the direction close to the rear mold plate 3, the first rack 42 drives the second rack 44 to slide towards the direction close to the front mold plate 2 through the synchronizing gear 41, and therefore the rear mold plate 3 slides towards the direction close to the front mold plate 2. Meanwhile, the force of the front template 2 acting on the driving mechanism enables the driving mechanism to slide towards the direction far away from the front template 2, so that the driving mechanism pulls the rear template 3 through the connecting arm 6 to enable the rear template 3 to slide towards the direction close to the front template 2, and therefore the front template 2 and the rear template 3 slide oppositely to clamp the mold.

The specific embodiments are only for explaining the present application and are not limiting to the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present application.

Claims (10)

1. A mode locking device is characterized in that: including frame (1), slide and set up preceding template (2) in frame (1), slide and set up in frame (1) and with preceding template (2) relative back template (3), be used for the drive preceding template (2) with back template (3) relative drive assembly (5) that slide and setting are in preceding template (2) with locating component (4) between back template (3), drive assembly (5) set up in frame (1) and with preceding template (2) link to each other, locating component (4) include synchronizing gear (41), first rack (42) and second rack (44), synchronizing gear (41) rotate and set up in frame (1), first rack (42) with second rack (44) parallel arrangement, just first rack (42) with second rack (44) all with synchronizing gear (41) mesh, first rack (42) with preceding template (2) fixed connection, second rack (44) with back template (3) fixed connection.

2. A mode locking apparatus according to claim 1, wherein: still include linking arm (6), linking arm (6) fixed connection be in back template (3) with between drive assembly (5), drive assembly (5) slide and set up in on frame (1).

3. A mode locking apparatus according to claim 1, wherein: a first connecting strip (23) is arranged on the front template (2), a first connecting hole (231) is formed in the first connecting strip (23), and one end of the first rack (42) penetrates through the first connecting hole (231); a second connecting strip (31) is arranged on the rear template (3), a second connecting hole (311) is formed in the second connecting strip (31), and one end of the second rack (44) penetrates through the second connecting hole (311); the first rack (42) is provided with a first positioning piece for fixing the first rack (42) on the first connecting strip (23), and the second rack (44) is provided with a second positioning piece for fixing the second rack (44) on the second connecting strip (31).

4. A mode locking apparatus according to claim 3, wherein: the first positioning piece comprises two first positioning nuts (43), an external thread is arranged on the first rack (42), the two first positioning nuts (43) are sleeved on the first rack (42) at intervals, and the first connecting strip (23) is positioned between the two first positioning nuts (43); the second positioning piece comprises two second positioning nuts (45), an external thread is arranged on the second rack (44), the two second positioning nuts (45) are arranged on the second rack (44) in a sleeved mode at intervals, and the second connecting strip (31) is located between the two second positioning nuts (45).

5. A mode locking apparatus according to claim 1, wherein: the driving assembly (5) comprises a rotary driving piece (51), a crank (52) and a connecting rod (53); the crank (52) is connected with a rotating shaft of the rotating driving part (51) and is suitable for rotating under the driving of the rotating driving part (51); one end of the connecting rod (53) is rotatably connected with the crank (52), and one end of the connecting rod (53) far away from the crank (52) is rotatably connected with the front template (2).

6. A mode locking apparatus according to claim 2, wherein: an installation groove (5121) is formed in the driving component (5), and one end, far away from the rear template (3), of the connecting arm (6) is inserted into the installation groove (5121); seted up on drive assembly (5) and run through the lateral wall of mounting groove (5121) with first connecting hole (231) of mounting groove (5121) intercommunication, connecting arm (6) are close to drive assembly (5) one end seted up with second connecting hole (311) that first connecting hole (231) were aimed at, first connecting hole (231) with wear to be equipped with a connecting axle (62) in second connecting hole (311) simultaneously.

7. A mode locking apparatus according to claim 6, wherein: one end of the connecting shaft (62) is located outside the first connecting hole (231) and is provided with a first rotation stopping groove (621), the outer edge of the orifice of the first connecting hole (231) is provided with a second rotation stopping groove (5123) communicated with the first rotation stopping groove (621), and the first rotation stopping groove (621) and the second rotation stopping groove (5123) are internally and simultaneously fixed with a rotation stopping block (622).

8. A mode locking apparatus according to claim 1, wherein: the front template (2) is provided with a plurality of reinforcing ribs (222).

9. A mode locking apparatus according to claim 3, wherein: the synchronizing gear (41) dustcoat is equipped with a pinion cover (46), offer the confession on pinion cover (46) first hole (461) of stepping down that first rack (42) passed and confession second hole (462) of stepping down that second rack (44) passed.

10. A mode locking apparatus according to claim 9, wherein: the first rack (42) is arranged in a penetrating manner, a first shaft sleeve (463) is sleeved on a part in the first yielding hole (461), the second rack (44) is arranged in a penetrating manner, a second shaft sleeve (464) is sleeved on a part in the second yielding hole (462), the first shaft sleeve (463) is located in the first yielding hole (461), and the second shaft sleeve (464) is located in the second yielding hole (462).

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