Prefabricated bag M-shaped synchronous opening supporting and shaping mechanism
Technical Field
The utility model relates to a food package field, concretely relates to preformed bag M type props a plastic mechanism in step.
Background
The existing opening-opening shaping for M type prefabricated bags adopts a large number of cylinder structures, the actions are complex and complicated to adjust, the synchronism is poor, the product percent of pass is low, and meanwhile, the production efficiency is low.
Disclosure of Invention
For overcoming the defects of the prior art, the utility model provides a preformed bag M type props a plastic mechanism in step, the technical scheme of the utility model is:
an M-shaped synchronous opening-supporting shaping mechanism for prefabricated bags comprises a fixed frame, an opening-supporting cylinder and an opening-supporting mechanism, wherein the opening-supporting cylinder and the opening-supporting mechanism are arranged on the fixed frame, the opening-supporting mechanism comprises a left middle supporting plate and a left supporting plate, a left supporting plate is respectively arranged on two sides of the left middle supporting plate, the left middle supporting plate and each left supporting plate are arranged in a cross manner, the right opening-supporting mechanism comprises a right middle supporting plate and a right supporting plate, a right supporting plate is respectively arranged on two sides of the right middle supporting plate, the right middle supporting plate and each right supporting plate are arranged in a cross manner, the left middle supporting plate and the right middle supporting plate are arranged oppositely, and the left middle supporting plate, the right middle supporting plate and the right supporting plate are all rotatably arranged on the fixed frame through bearings, the cylinder body of the opening supporting cylinder is hinged on the fixed frame, the piston rod is hinged with the upper end of the first swing arm, and the middle part of the first swing arm is rotatably arranged on the fixed frame through a bearing; the first swing arm is connected with the left middle supporting plate through a first connecting rod, the first swing arm is connected with the right middle supporting plate through a second connecting rod, the first connecting rod is hinged to the upper portion of the first swing arm, and the second connecting rod is hinged to the lower portion of the first rocker arm.
The opening supporting mechanisms are of two sets, wherein a left middle supporting plate of the first opening supporting mechanism is connected with a left middle supporting plate of the second opening supporting mechanism through a third connecting rod, and the third connecting rod is hinged with the two left middle supporting plates; the right middle supporting plate of the first opening supporting mechanism is connected with the right middle supporting plate of the second opening supporting mechanism through a fourth connecting rod, and the fourth connecting rod is hinged with the two right middle supporting plates; the left supporting plate of the first opening supporting mechanism is connected with the left supporting plate of the second opening supporting mechanism through a fifth connecting rod, and the fifth connecting rod is hinged with the two left supporting plates; the right side supporting plate of the first sleeve opening supporting mechanism is connected with the right side supporting plate of the second sleeve opening supporting mechanism through a sixth connecting rod, and the sixth connecting rod is hinged with the two side supporting plates; the bottom of the fixing frame is provided with a horizontal connecting rod, one end of the horizontal connecting rod forms a long slot hole, the lower end of the first swing arm is arranged in the long slot hole in a sliding mode through a pin shaft, the other end of the horizontal connecting rod is hinged to the lower end of the second swing arm, the middle of the second swing arm is arranged on the fixing frame through a bearing in a rotating mode, the upper end of the second swing arm is connected with one end of a tension spring, the tension spring is arranged in parallel with the horizontal connecting rod, and the other end of the tension spring.
The left side supporting plate of the second support opening mechanism is connected with the upper end of the second swing arm through a seventh connecting rod, and the seventh connecting rod is hinged with the left side supporting plate and the second swing arm; the right side supporting plate of the second sleeve opening supporting mechanism is connected with the lower end of the second swing arm through an eighth connecting rod, and the eighth connecting rod is hinged with the right side supporting plate and the second swing arm.
And an adjusting screw rod is arranged on the fixing frame, one end of the adjusting screw rod is movably matched with the piston rod of the opening supporting cylinder, and a handle is arranged at the other end of the adjusting screw rod.
The lifting cylinder is obliquely arranged, a cylinder body of the lifting cylinder is hinged to the rack, and a piston rod of the lifting cylinder is hinged to the fixing frame.
The utility model has the advantages that: through a mouthful cylinder of propping, can realize prefabricated bag M type shaping fast, improve work efficiency, reduce the finished product defective rate.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention.
Fig. 2 is a rear view of fig. 1.
Fig. 3 is a schematic view of the connection relationship between the frame, the lifting cylinder and the fixing frame of the present invention.
Detailed Description
The invention will be further described with reference to specific embodiments, the advantages and features of the invention will become more apparent as the description proceeds. These examples are merely illustrative and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Referring to fig. 1 to 3, the utility model relates to a preformed bag M-type synchronous opening-supporting shaping mechanism, which comprises a fixing frame 1, an opening-supporting cylinder 21 and an opening-supporting mechanism which are arranged on the fixing frame 1, wherein the opening-supporting mechanism comprises a left opening-supporting mechanism and a right opening-supporting mechanism, a space is formed between the left opening-supporting mechanism and the right opening-supporting mechanism, the left opening-supporting mechanism comprises a left middle supporting plate 2 and a left supporting plate 3, a left supporting plate 3 is respectively arranged on two sides of the left middle supporting plate 2, a cross-shaped arrangement is formed between the left middle supporting plate and each left supporting plate 3, the right opening-supporting mechanism comprises a right middle supporting plate 5 and a right supporting plate 4, a right supporting plate 4 is respectively arranged on two sides of the right middle supporting plate 5, a cross-shaped arrangement is formed between the right middle supporting plate 5 and each right supporting plate 4, the left middle supporting plate and the right middle supporting plate are arranged oppositely, the left middle supporting plate 2, the left supporting plate 3, the right middle supporting plate 5 and the right supporting plate 4 are rotatably arranged on the fixing frame 1 through bearings, a cylinder body of the mouth supporting cylinder 21 is hinged on the fixing frame 1, a piston rod is hinged with the upper end of a first swing arm 18, and the middle part of the first swing arm is rotatably arranged on the fixing frame through bearings; the first swing arm and the left middle supporting plate are connected together through a first connecting rod 11, the first swing arm and the right middle supporting plate are connected together through a second connecting rod 10, the first connecting rod 11 is hinged to the upper portion of the first swing arm, and the second connecting rod 10 is hinged to the lower portion of the first swing arm.
The opening supporting mechanisms are of two sets, wherein a left middle supporting plate of the first opening supporting mechanism is connected with a left middle supporting plate of the second opening supporting mechanism through a third connecting rod 12, and the third connecting rod is hinged with the two left middle supporting plates; the right middle supporting plate of the first opening supporting mechanism is connected with the right middle supporting plate of the second opening supporting mechanism through a fourth connecting rod 13, and the fourth connecting rod is hinged with the two right middle supporting plates; the left supporting plate of the first opening supporting mechanism is connected with the left supporting plate of the second opening supporting mechanism through a fifth connecting rod 17, and the fifth connecting rod is hinged with the two left supporting plates; the right side supporting plate of the first sleeve opening supporting mechanism is connected with the right side supporting plate of the second sleeve opening supporting mechanism through a sixth connecting rod 16, and the sixth connecting rod is hinged with the two side supporting plates; the bottom of the fixing frame is provided with a horizontal connecting rod 20, one end of the horizontal connecting rod 20 forms a long slot hole, the lower end of the first swing arm 18 is slidably arranged in the long slot hole through a pin shaft, the other end of the horizontal connecting rod 20 is hinged at the lower end of the second swing arm 19, the middle part of the second swing arm is rotatably arranged on the fixing frame through a bearing, the upper end of the second swing arm is connected with one end of a tension spring 25, the tension spring 25 is arranged in parallel with the horizontal connecting rod, and the other end of the tension spring is fixedly arranged on the.
The left side supporting plate of the second support opening mechanism is connected with the upper end of the second swing arm through a seventh connecting rod 15, and the seventh connecting rod is hinged with the left side supporting plate and the second swing arm 19; the right side supporting plate of the second sleeve opening supporting mechanism is connected with the lower end of the second swing arm through an eighth connecting rod 14, and the eighth connecting rod is hinged with the right side supporting plate and the second swing arm.
An adjusting screw rod is arranged on the fixed frame, one end of the adjusting screw rod 22 is movably matched with a piston rod of the opening supporting cylinder 21, and the other end of the adjusting screw rod is provided with a handle.
The lifting device also comprises a lifting cylinder 23 which is obliquely arranged, the cylinder body of the lifting cylinder 23 is hinged on a rack 24, and the piston rod of the lifting cylinder 23 is hinged with the fixed frame.
The utility model discloses a theory of operation is: when the piston rod of the mouth-opening cylinder 21 extends outwards, the lower half part of the first swing arm 18 is driven to move rightwards, a swing space (a pin shaft moves in a long slotted hole) is made for the long connecting rod 20 installed on the first swing arm, and at the moment, the mouth-opening tension spring 25 contracts to pull the second swing arm 19 to swing. The second swing arm drives the right supporting plate and the left supporting plate to swing through the eighth connecting rod 14 and the seventh connecting rod 15 respectively, so that the right supporting plate and the left supporting plate move oppositely. The right side fagging drives the swing of right side fagging through the sixth connecting rod, and the left side fagging drives the swing of left side fagging through the fifth connecting rod, and then makes right side fagging and left side fagging opposite direction movement. The combination action of the right side supporting plate and the left side supporting plate and the combination action of the right side supporting plate and the left side supporting plate realize the action that the side edges of the two bags of M-shaped bags are simultaneously outwards supported.
The external supporting power comes from the tension of the opening supporting tension spring 25, and the purpose of the design is to prevent the packaging bag from being damaged by supporting. The adjusting screw 22 is arranged on the fixed frame 1, the extending length of the adjusting screw 22 is adjusted, the extending length of the piston rod of the port-supporting cylinder 21 can be changed, and therefore the size of the port is adjusted.
When two M-shaped prefabricated bags move to the position below the synchronous opening supporting and shaping mechanism, the piston rod of the lifting cylinder 23 extends out to drive the fixing frame 1 to descend, so that the synchronous opening supporting and shaping mechanism is inserted into the two M-shaped prefabricated bags to support opening shaping, and after the opening supporting action is finished, the piston rod of the lifting cylinder 23 retracts to drive the fixing frame 1 to rise, and the space for yielding the two M-shaped prefabricated bags to move enters the next process.