CN217450765U

CN217450765U - Double-valve synchronous dispensing mechanism capable of rotating forwards and backwards

Info

Publication number: CN217450765U
Application number: CN202220752391.2U
Authority: CN
Inventors: 王增辉; 裴侨解; 查进
Original assignee: Changzhou Mingseal Robotic Technology Co Ltd
Current assignee: Changzhou Mingseal Robotic Technology Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-20
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses a synchronous point gum machine of bivalve of front and back rotation constructs, include: a mounting seat; the rotating module is arranged on the mounting seat and is provided with a rotating shaft, the rotating shaft is rotationally connected with the mounting seat, and the rotating shaft can rotate around the x direction; two injection valve subassemblies, two injection valve subassemblies all locate on the outer peripheral face of pivot, and the pivot drives injection valve subassembly and winds x to rotating. The utility model discloses simple structure sets up the pivot through rotating on the mount pad to install two injection valve subassemblies on the outer peripheral face of pivot, drive two injection valve subassemblies through rotating the pivot and rotate, the point is glued the adjustable of angle when having realized the point and is glued, has satisfied the point of different products and has glued the requirement, has improved the point and has glued the effect, has further promoted product processingquality.

Description

Double-valve synchronous dispensing mechanism capable of rotating front and back

Technical Field

The utility model belongs to the technical field of the point gum machine constructs, concretely relates to synchronous point gum machine of bivalve of rotation constructs around.

Background

At present, a dispensing mechanism is often adopted for dispensing in the packaging process of electronic products, most dispensing mechanisms in the market can only support a vertical dispensing mode from top to bottom, and inclined dispensing can not be realized in the face of products with radian or special angles, so that the dispensing effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, the utility model provides a mechanism is glued to rotatory bivalve point in step around, this mechanism is glued to rotatory bivalve point in step around has and carries out angle modulation when gluing to improve the advantage of gluing the effect.

According to the utility model discloses synchronous point gum machine of bivalve of front and back rotation constructs, include: a mounting seat; the rotating module is arranged on the mounting seat and is provided with a rotating shaft, the rotating shaft is rotatably connected with the mounting seat, and the rotating shaft can rotate around the x direction; and the two injection valve assemblies are arranged on the outer peripheral surface of the rotating shaft, and the rotating shaft drives the injection valve assemblies to rotate around the x direction.

The beneficial effects of the utility model are that, the utility model discloses simple structure sets up the pivot through rotating on the mount pad to install two injection valve subassemblies on the outer peripheral face of pivot, drive two injection valve subassemblies through rotating the pivot and rotate, the point is glued adjustable of angle when having realized the point and is glued, has satisfied the point of different products and has glued the requirement, has improved the point and has glued the effect, has further promoted product processingquality.

According to the utility model discloses an embodiment, the mount pad includes: the connecting plate comprises two mounting blocks and a connecting plate, one end of the connecting plate is connected with one of the mounting blocks, the other end of the connecting plate is connected with the other mounting block, one end of the rotating shaft is connected with one of the mounting blocks in a rotating mode, and the other end of the rotating shaft is connected with the other mounting block in a rotating mode.

According to the utility model discloses an embodiment, the rotation module still includes: one end of the follow-up plate is connected with one end of the rotating shaft; the power mechanism is arranged on one mounting block, one part of the power mechanism is connected with the other end of the follow-up plate, and one part of the power mechanism can reciprocate along the z direction so as to drive the rotating shaft to rotate through the follow-up plate.

According to the utility model discloses an embodiment, power unit includes: the motor is arranged on the mounting block; the screw rod on the screw rod assembly is directly connected with the output end of the motor, and a screw rod sliding block on the screw rod assembly is sleeved on the screw rod; the second guide rail sliding block assembly is arranged on the mounting block, a sliding block on the second guide rail sliding block assembly is connected with the screw rod sliding block, and the second guide rail sliding block assembly and the screw rod assembly are arranged in the z direction in parallel.

According to the utility model discloses an embodiment, power unit still includes: photoelectric sensor and photoelectric separation blade, photoelectric sensor locates one side of motor, photoelectric separation blade locates on the lead screw slider, photoelectric separation blade is located under photoelectric sensor.

According to the utility model discloses an embodiment, be equipped with the sliding block on the follower plate, the sliding block through first guide rail sliding block set spare with the follower plate slides and links to each other, the sliding plate with the lead screw slider rotates to be connected.

According to an embodiment of the present invention, the sliding plate and the center of rotation between the lead screw sliders and the line between the rotation centers of the rotating shafts are parallel to the first guide rail slider assembly.

According to the utility model discloses an embodiment, one injection valve subassembly through first switching piece with the pivot links to each other, first switching piece can for the pivot is followed y and is finely tuned, and another injection valve subassembly through switching subassembly with the pivot links to each other, switching subassembly can for the pivot is followed x to and z to the fine tuning.

According to the utility model discloses an embodiment, two mounting surfaces have in the pivot, first recess has been seted up to one side of first switching piece, the pivot is located in the first recess, one mounting surface with the lateral wall of first recess pastes mutually, set up on the first switching piece and run through the first waist type hole of first recess lateral wall, the length direction in first waist type hole is on a parallel with y to, and first set screw passes behind the first waist type hole with one the mounting surface links to each other, set up on the first switching piece and run through along y to the first regulation hole of first switching piece, first adjusting screw passes behind the first regulation hole with the side of pivot offsets, one jet valve subassembly is located on the first switching piece.

According to the utility model discloses an embodiment, switching subassembly includes two fine setting nuts and second switching piece, the second recess has been seted up to one side of second switching piece, the pivot is located in the second recess, another the mounting plane with the lateral wall of second recess pastes mutually, set up on the second switching piece and run through the second waist type hole of second recess lateral wall, the length direction in second waist type hole is on a parallel with the x to, and second locking screw passes behind the second waist type hole with another the mounting plane links to each other, two fine setting nut cover is located in the pivot, the second switching piece is located two between the fine setting nut, the second switching piece can be followed the x to the fine setting, two fine setting nut is used for after the locking fine setting the second switching piece.

According to the utility model discloses an embodiment, the switching subassembly still includes third switching piece, third switching piece is located the second switching piece is kept away from one side of pivot, third waist type hole has been seted up on the third switching piece, the length direction in third waist type hole is on a parallel with the z to, and second locking screw passes behind the third waist type hole with the second switching piece links to each other, the second regulation hole has been seted up on the third switching piece, the second regulation hole is located the top of second switching piece, second adjusting screw top-down passes behind the second regulation hole with the second switching piece offsets, the third switching piece can for the second switching piece is along the z to the fine setting, and another the injection valve subassembly is located on the third switching piece.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments with reference to the accompanying drawings, in which:

fig. 1 is a schematic perspective view of a front-back rotating double-valve synchronous dispensing mechanism according to the present invention;

fig. 2 is a schematic structural view of a front-back rotating double-valve synchronous dispensing mechanism according to the present invention;

fig. 3 is a schematic perspective view of another angle of the front-back rotating double-valve synchronous dispensing mechanism according to the present invention;

fig. 4 is a schematic view of a partial structure of a rotary module in the forward and backward rotary double-valve synchronous dispensing mechanism according to the present invention;

fig. 5 is a schematic structural view of a rotating shaft in the front-back rotating double-valve synchronous dispensing mechanism according to the present invention;

fig. 6 is another schematic structural diagram of a rotary module in the forward and backward rotary double-valve synchronous dispensing mechanism according to the present invention;

fig. 7 is another schematic structural diagram of a rotary module in the forward and backward rotary double-valve synchronous dispensing mechanism according to the present invention;

FIG. 8 is a schematic view of a front-to-back rotating dual valve synchronous dispensing mechanism according to the present invention after installation;

reference numerals:

1. the device comprises a mounting seat, 11, a mounting block, 12, a connecting plate, 2, a rotating module, 3, an injection valve assembly, 21, a rotating shaft, 22, a fine adjustment nut, 23, a first transfer block, 24, a second transfer block, 25, a follow-up plate, 26, a first guide rail sliding block assembly, 27, a sliding block, 28, a screw rod assembly, 29, a second guide rail sliding block assembly, 40, a motor, 41, a photoelectric sensor, 42, a photoelectric baffle, 43, a third transfer block, 211, a mounting plane, 231, a first kidney-shaped hole, 232, a first adjusting hole, 241, a second kidney-shaped hole, 431, a third kidney-shaped hole, 432, a second adjusting hole, 4 and x-direction moving assemblies, 5 and z-direction moving assemblies.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The double-valve synchronous dispensing mechanism rotating back and forth according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 8, according to the utility model discloses synchronous dispensing mechanism of bivalve of rotation around, include: the injection valve comprises a mounting seat 1, a rotating module 2 and two injection valve components 3, wherein the rotating module 2 is arranged on the mounting seat 1, the rotating module 2 is provided with a rotating shaft 21, the rotating shaft 21 is rotatably connected with the mounting seat 1, and the rotating shaft 21 can rotate around the x direction; two injection valve subassemblies 3 all locate on the outer peripheral face of pivot 21, and pivot 21 drives injection valve subassembly 3 around x to rotating.

The beneficial effects of the utility model are that, the utility model discloses simple structure sets up pivot 21 through rotating on mount pad 1 to install two injection valve subassembly 3 on the outer peripheral face of pivot 21, drive two injection valve subassembly 3 through rotating pivot 21 and rotate, the point is glued when having realized gluing the adjustable of angle, has satisfied the point of different products and has glued the requirement, has improved the point and has glued the effect, has further promoted product processingquality.

According to the utility model discloses an embodiment, mount pad 1 includes: the connecting plate comprises two mounting blocks 11 and a connecting plate 12, wherein one end of the connecting plate 12 is connected with one mounting block 11, the other end of the connecting plate 12 is connected with the other mounting block 11, one end of a rotating shaft 21 is rotatably connected with one mounting block 11, and the other end of the rotating shaft 21 is rotatably connected with the other mounting block 11.

On this basis, the rotating module 2 further includes: the servo motor comprises a follower plate 25 and a power mechanism, wherein one end of the follower plate 25 is connected with one end of a rotating shaft 21; the power mechanism is arranged on a mounting block 11, one part of the power mechanism is connected with the other end of the follow-up plate 25, and one part of the power mechanism can reciprocate along the z direction so as to drive the rotating shaft 21 to rotate through the follow-up plate 25.

Further, the power mechanism comprises: the device comprises a motor 40, a screw rod assembly 28 and a second guide rail sliding block assembly 29, wherein the motor 40 is arranged on a mounting block 11; a screw rod on the screw rod assembly 28 is directly connected with the output end of the motor 40, and a screw rod sliding block on the screw rod assembly 28 is sleeved on the screw rod; the second guide rail sliding block assembly 29 is arranged on a mounting block 11, a sliding block on the second guide rail sliding block assembly 29 is connected with a screw rod sliding block, and the second guide rail sliding block assembly 29 and the screw rod assembly 28 are arranged in the z direction in parallel.

That is to say, the motor 40 drives the lead screw to rotate, the lead screw slider moves up and down along the direction of the lead screw, and meanwhile, the second guide rail slider assembly 29 guides the lead screw slider in the z direction, so that the stability and reliability of the whole movement process of the lead screw slider are ensured.

Further, the power mechanism further comprises: the photoelectric sensor 41 is arranged on one side of the motor 40, the photoelectric barrier 42 is arranged on the screw rod slider, and the photoelectric barrier 42 is positioned under the photoelectric sensor 41. The photoelectric barrier 42 moves up and down along with the screw rod slider, and the photoelectric sensor 41 can judge the rotating angle of the injection valve assembly 3 according to the position of the photoelectric barrier 42.

Preferably, the follower plate 25 is provided with a slide block 27, the slide block 27 is slidably connected with the follower plate 25 through a first guide rail slide block assembly 26, and the slide block 27 is rotatably connected with the lead screw slide block.

More preferably, a line connecting a rotation center between the slide plate 27 and the lead screw slide and a rotation center of the rotation shaft 21 is parallel to the first rail slider assembly 26. Here, in the present embodiment, the number of the first guide rail slider assemblies 26 is two. The two first guide rail slider assemblies 26 are symmetrically arranged about the link between the center of rotation and the center of rotation. The two first guide rail slider assemblies 26 can provide a better guiding effect for the sliding plate 27.

In other words, the sliding plate 27 is slidably disposed on the follower plate 25, and since the sliding block 27 can slide between the rotation center between the sliding plate 27 and the screw rod slide and the rotation center of the rotating shaft 21, the follower plate 25 is driven to rotate around the rotating shaft 21 and further the rotating shaft 21 while the sliding block 27 moves up and down along with the screw rod slide.

According to an embodiment of the present invention, an injection valve assembly 3 is connected to the rotating shaft 21 through a first adapter 23, the first adapter 23 can be finely adjusted along the y direction relative to the rotating shaft 21, another injection valve assembly 3 is connected to the rotating shaft 21 through an adapter assembly, and the adapter assembly can be finely adjusted along the x direction and the z direction relative to the rotating shaft 21. That is, one of the jet valve assemblies 3 is positionally adjustable in the y direction on the rotary shaft 21, and the other jet valve assembly 3 is positionally adjustable in the x direction and the z direction on the rotary shaft 21.

On this basis, two mounting planes 211 are arranged on the rotating shaft 21, a first groove is formed in one side of the first transfer block 23, the rotating shaft 21 is arranged in the first groove, one mounting plane 211 is attached to the side wall of the first groove, a first waist-shaped hole 231 penetrating through the side wall of the first groove is formed in the first transfer block 23, the length direction of the first waist-shaped hole 231 is parallel to the y direction, a first locking screw penetrates through the first waist-shaped hole 231 and then is connected with the mounting plane 211, a first adjusting hole 232 penetrating through the first transfer block 23 along the y direction is formed in the first transfer block 23, the first adjusting screw penetrates through the first adjusting hole 232 and then abuts against the side face of the rotating shaft 21, and the injection valve assembly 3 is arranged on the first transfer block 23.

A mounting plane 211 and the lateral wall laminating of first recess can avoid first adaptor block 23 and pivot 21 to take place relative rotation after fixed, and the axis that first adjusting screw was located is on a parallel with a mounting plane 211, because first adjusting screw supports pivot 21, when first adjusting screw rotated, first adaptor block 23 can be close to along the y to or keep away from pivot 21 motion, after adjusting to target in place, first locking screw fixed first adaptor block 23 and pivot 21 mutually through first waist type hole 231.

According to the utility model discloses an embodiment, the switching subassembly includes two fine setting nuts 22 and second switching piece 24, the second recess has been seted up to one side of second switching piece 24, pivot 21 is located in the second recess, another mounting plane 211 pastes with the lateral wall of second recess mutually, set up the second waist type hole 241 that runs through the second recess lateral wall on the second switching piece 24, the length direction of second waist type hole 241 is on a parallel with the x direction, second locking screw passes behind the second waist type hole 241 and links to each other with another mounting plane 211, pivot 21 is located to two fine setting nut 22 covers, second switching piece 24 is located between two fine setting nuts 22, second switching piece 24 can be followed the x and finely tuned, two fine setting nuts 22 are used for locking second switching piece 24 after the fine setting.

The other mounting plane 211 is attached to the side wall of the second groove, so that the second transfer block 24 and the rotating shaft 21 can be prevented from rotating relatively after being fixed, the two fine adjustment nuts 22 clamp the second transfer block 24, the position of the second transfer block 24 in the x direction can be adjusted by adjusting the positions of the two fine adjustment nuts 22 on the rotating shaft 21, and the second locking screw fixes the second transfer block 24 and the rotating shaft 21 through the second kidney-shaped hole 241.

According to the utility model discloses an embodiment, the switching subassembly still includes third switching piece 43, third switching piece 43 is located second switching piece 24 and keeps away from the one side of pivot 21, third waist type hole 431 has been seted up on third switching piece 43, the length direction of third waist type hole 431 is on a parallel with the z to, second locking screw passes behind third waist type hole 431 and links to each other with second switching piece 24, second regulation hole 432 has been seted up on third switching piece 43, second regulation hole 432 is located the top of second switching piece 24, second regulation screw top-down passes behind second regulation hole 432 and offsets with second switching piece 24, third switching piece 43 can be for second switching piece 24 along the z to the fine setting, another injection valve subassembly 3 is located on third switching piece 43.

In other words, the upper portion of the third transfer block 43 is located above the second transfer block 24, the second adjusting hole 432 is located at the upper portion of the third transfer block 43, due to the gravity action of the third transfer block 43, the second adjusting screw penetrates through the second adjusting hole 432 from top to bottom and abuts against the second transfer block 24, the position of the third transfer block 43 in the z direction can be adjusted by rotating the second adjusting screw, and after the adjustment is completed, the third transfer block 43 and the second transfer block 24 are fixed by the second locking screw through the third kidney-shaped hole 431.

As shown in fig. 8, the utility model discloses a synchronous dispensing mechanism of bivalve of rotation around install on z to motion subassembly 5, z links to each other with connecting plate 12 to the output that moves subassembly 5, thereby it moves along z to drive the synchronous dispensing mechanism of bivalve of rotation around whole, and simultaneously, z sets up on x to motion subassembly 4 to motion subassembly 5, and x drives z to motion subassembly 5 along x to the motion to motion subassembly 4, makes the synchronous dispensing mechanism of bivalve of rotation around can be in the position free adjustment on the xz plane.

All in all, the utility model discloses convert linear motion into rotary motion, drive two injection valve subassembly 3 slope certain angle and carry out the point and glue, improved the point effect of gluing, relative position between two injection valve subassembly 3 can be adjusted on pivot 21 simultaneously, and two injection valve subassembly 3 can carry out the point simultaneously to the product of different positions and glue, have improved and have glued efficiency.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a mechanism is glued to bivalve synchronization point of front and back rotation which characterized in that includes:

a mounting seat (1);

the rotating module (2) is arranged on the mounting seat (1), a rotating shaft (21) is arranged on the rotating module (2), the rotating shaft (21) is rotatably connected with the mounting seat (1), and the rotating shaft (21) can rotate around the x direction;

two injection valve subassembly (3), two injection valve subassembly (3) are all located on the outer peripheral face of pivot (21), pivot (21) drive injection valve subassembly (3) are around x to the rotation.

2. Front-rear rotating double-valve synchronous dispensing mechanism according to claim 1, characterized in that said mounting seat (1) comprises: two installation pieces (11) and connecting plate (12), the one end of connecting plate (12) with one installation piece (11) link to each other, the other end and another of connecting plate (12) installation piece (11) link to each other, the one end and one of pivot (21) installation piece (11) rotate and link to each other, the other end and another of pivot (21) installation piece (11) rotate and link to each other.

3. The double-valve synchronous dispensing mechanism of forward and backward rotation according to claim 2, wherein the rotating module (2) further comprises:

a follower plate (25), one end of the follower plate (25) being connected to one end of the rotary shaft (21);

the power mechanism is arranged on the mounting block (11), one part of the power mechanism is connected with the other end of the follow-up plate (25), and one part of the power mechanism can reciprocate along the z direction so as to drive the rotating shaft (21) to rotate through the follow-up plate (25).

4. The forward-backward rotating double-valve synchronous dispensing mechanism according to claim 3, wherein the power mechanism comprises:

the motor (40), the said motor (40) locates on a said mounting block (11);

the screw rod on the screw rod assembly (28) is directly connected with the output end of the motor (40), and a screw rod sliding block on the screw rod assembly (28) is sleeved on the screw rod;

the second guide rail sliding block assembly (29), the second guide rail sliding block assembly (29) is arranged on the mounting block (11), a sliding block on the second guide rail sliding block assembly (29) is connected with the screw rod sliding block, and the second guide rail sliding block assembly (29) and the screw rod assembly (28) are arranged in the z direction in parallel.

5. The forward-backward rotating double-valve synchronous dispensing mechanism according to claim 4, wherein the power mechanism further comprises: photoelectric sensor (41) and photoelectric barrier piece (42), photoelectric sensor (41) are located one side of motor (40), photoelectric barrier piece (42) are located on the lead screw slider, photoelectric barrier piece (42) are located under photoelectric sensor (41).

6. A front-back rotating double-valve synchronous dispensing mechanism according to claim 4, characterized in that the follower plate (25) is provided with a sliding block (27), the sliding block (27) is slidably connected with the follower plate (25) through a first guide rail sliding block assembly (26), and the sliding block (27) is rotatably connected with the screw rod sliding block.

7. The forward-backward rotating double-valve synchronous dispensing mechanism according to claim 6, wherein a line connecting a rotation center between the slide block (27) and the screw block and a rotation center of the rotary shaft (21) is parallel to the first guide rail slide assembly (26).

8. The forward-backward rotary double-valve synchronous dispensing mechanism according to claim 1, wherein one of the injection valve assemblies (3) is connected to the rotary shaft (21) through a first adapter block (23), the first adapter block (23) being capable of fine adjustment in the y direction with respect to the rotary shaft (21), and the other injection valve assembly (3) is connected to the rotary shaft (21) through an adapter assembly, the adapter assembly being capable of fine adjustment in the x direction and the z direction with respect to the rotary shaft (21).

9. The forward-backward rotating double-valve synchronous dispensing mechanism according to claim 8, wherein the rotating shaft (21) has two mounting planes (211), one side of the first transfer block (23) is formed with a first groove, the rotating shaft (21) is disposed in the first groove, one of the mounting planes (211) is attached to a side wall of the first groove, the first transfer block (23) is formed with a first kidney-shaped hole (231) penetrating through a side wall of the first groove, a length direction of the first kidney-shaped hole (231) is parallel to the y direction, a first locking screw penetrates through the first kidney-shaped hole (231) and then is connected to one of the mounting planes (211), the first transfer block (23) is formed with a first adjusting hole (232) penetrating through the first transfer block (23) along the y direction, and the first adjusting screw penetrates through the first adjusting hole (232) and then abuts against a side surface of the rotating shaft (21), the injection valve assembly (3) is arranged on the first transfer block (23).

10. The forward-backward rotating double-valve synchronous dispensing mechanism according to claim 9, wherein the switching assembly comprises two fine adjustment nuts (22) and a second switching block (24), a second groove is formed in one side of the second switching block (24), the rotating shaft (21) is disposed in the second groove, the other mounting plane (211) is attached to the side wall of the second groove, a second kidney-shaped hole (241) penetrating through the side wall of the second groove is formed in the second switching block (24), the length direction of the second kidney-shaped hole (241) is parallel to the x direction, a second locking screw penetrates through the second kidney-shaped hole (241) and then is connected with the other mounting plane (211), the two fine adjustment nuts (22) are sleeved on the rotating shaft (21), and the second switching block (24) is located between the two fine adjustment nuts (22), the second transfer block (24) can be finely adjusted along the x direction, and the two fine adjustment nuts (22) are used for locking the finely adjusted second transfer block (24).

11. The forward-backward rotating double-valve synchronous dispensing mechanism according to claim 10, wherein the switching assembly further comprises a third switching block (43), the third switching block (43) is located on one side of the second switching block (24) away from the rotating shaft (21), a third kidney-shaped hole (431) is formed in the third switching block (43), the length direction of the third kidney-shaped hole (431) is parallel to the z direction, a second locking screw passes through the third kidney-shaped hole (431) and then is connected with the second switching block (24), a second adjusting hole (432) is formed in the third switching block (43), the second adjusting hole (432) is located above the second switching block (24), a second adjusting screw passes through the second adjusting hole (432) from top to bottom and then abuts against the second switching block (24), and the third switching block (43) can finely adjust the z direction relative to the second switching block (24), the other injection valve assembly (3) is arranged on the third transfer block (43).