CN113681867B

CN113681867B - Blowing machine convenient to change mould

Info

Publication number: CN113681867B
Application number: CN202111251045.2A
Authority: CN
Inventors: 李雪栋; 赵希民
Original assignee: Shandong Zhongmao Radiator Co ltd
Current assignee: Shandong Zhongmao Radiator Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2021-12-31
Anticipated expiration: 2041-10-27
Also published as: CN113681867A

Abstract

The invention is suitable for the technical field of blow molding, and provides a blow molding machine convenient for mold replacement, which comprises a mold movably connected with an equipment body, wherein one side of the mold is fixedly connected with a T-shaped vertical plate, a clamping component is arranged between the equipment body and the T-shaped vertical plate, the clamping component is slidably connected with the equipment body and movably contacts with the upper end surface of the T-shaped vertical plate fixedly connected with one side of the mold, the clamping component comprises eccentric wheels symmetrically arranged at the front side and the rear side of the equipment body and eccentrically arranged in the middle of a sliding shaft, a first elastic piece is arranged between the sliding shaft and the equipment body, and the end part of the sliding shaft is provided with a moving mechanism for driving the sliding shaft to slide. Therefore, after the die is installed, the eccentric wheel is positioned at the dead point position under the action of gravity, so that the function of fixing the die is realized; through the arrangement of the moving mechanism, the dead point position of the die relative to the eccentric wheel is removed by the eccentric wheel, so that the die is removed, the problem of large workload of die replacement is solved, and the working efficiency is improved.

Description

Blowing machine convenient to change mould

Technical Field

The invention relates to the field of blow molding, in particular to a blow molding machine convenient for mold replacement.

Background

In the actual production of blow molding, because the change of order volume or delivery period of products, need change the mould according to the product, especially to new product small batch verification stage, need carry out frequent design change to the product, in order to shorten product development cycle, need improve the efficiency of product blow molding, consequently need frequent change mould more, but at present the mould all adopts the fix with screw and change the back and need adjust the mould mounted position again, and staff's change work load is big, and work efficiency is low.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide a blow molding machine with easy mold replacement, which shortens the time for mold replacement, achieves the function of quick mold replacement, and improves the work efficiency.

In order to achieve the purpose, the invention provides a blow molding machine convenient for mold replacement, which comprises a mold movably connected with an equipment body, wherein one side of the mold is fixedly connected with a T-shaped vertical plate; the joint subassembly sets up including the symmetry two eccentric wheels of both sides around the equipment body, every the equal swing joint of eccentric wheel the up end of T type riser, two the eccentric wheel rotates respectively and connects two sliding shafts, two sliding shaft parallel arrangement, eccentric wheel eccentric settings is in the middle part of sliding shaft, the both sides sliding connection of sliding shaft the equipment body, the sliding shaft with be equipped with first elastic component between the equipment body, the tip of sliding shaft is equipped with its gliding moving mechanism of drive.

According to the blow molding machine convenient for mold replacement, the upper direction and the lower direction of the equipment body are provided with T-shaped grooves, the T-shaped grooves comprise mounting grooves and clamping grooves, the mounting grooves and the clamping grooves are vertically formed in the equipment body, the clamping grooves extend downwards from the upper end face of the equipment body, each eccentric wheel is longitudinally placed in the clamping grooves, the mounting grooves extend downwards from the bottoms of the clamping grooves, the middle positions of the mounting grooves and the rear side faces of the clamping grooves are provided with limiting grooves in the vertical direction, and the T-shaped vertical plates are vertically connected in the T-shaped grooves in a sliding mode.

According to the blow molding machine convenient for mold replacement, the eccentric wheel is longitudinally placed in the clamping groove, and the axial direction of the eccentric wheel is perpendicular to the left side surface and the right side surface of the clamping groove.

According to the blow molding machine convenient for mold replacement, the front and back sizes of the mounting groove are smaller than those of the clamping groove, and the left and right width sizes of the mounting groove and the clamping groove are the same.

According to the blow molding machine convenient for mold replacement, the limiting groove penetrates through the right end face of the equipment body, the limiting groove extends from the upper end face of the equipment body to the bottom of the mounting groove, and the front-back width dimension of the limiting groove is smaller than that of the mounting groove.

According to the invention, the moving mechanism comprises a first connecting rod and a second connecting rod, the first connecting rod is obliquely arranged, one end of the first connecting rod is slidably connected with the sliding shaft at the same side position of the first connecting rod, the other end of the first connecting rod is fixedly connected with a first gear rotationally connected with the equipment body, the first gear is meshed with a second gear, the second gear is rotationally connected with the equipment body, the first gear and the second gear are horizontally arranged, the second gear is fixedly connected with one end of the second connecting rod, the second connecting rod is symmetrically arranged with the first connecting rod, the other end of the second connecting rod is slidably connected with the other sliding shaft, the first gear and the second gear are movably meshed with a third gear, and the third gear is vertically slidably connected with the equipment body, the third gear is connected with a gear shaft in a rotating mode, the gear shaft is connected with the equipment body in an up-and-down sliding mode, the end portion of the gear shaft is fixedly connected with one end of a horizontally placed third connecting rod, the middle of the third connecting rod is fixedly connected with a fixed seat, the other end of the third connecting rod is fixedly connected with a first sliding driving piece arranged in the vertical direction, the first sliding driving piece is fixedly connected with a mounting seat fixedly arranged on the equipment body, the fixed seat is connected with the middle of a sliding plate in an up-and-down sliding mode, one end of the sliding plate is provided with gear teeth meshed with the second gear, the other end of the sliding plate is provided with a boss connected with the lower end of the fixed seat in a clamping mode, and a third elastic piece is arranged between the sliding plate and the mounting seat.

According to the blow molding machine convenient for mold replacement, the moving mechanism comprises a fourth connecting rod and a fifth connecting rod, the fourth connecting rod is obliquely arranged, one end of the fourth connecting rod is connected with the sliding shaft at the same side position of the fourth connecting rod in a sliding mode, the other end of the fourth connecting rod is fixedly connected with a fourth gear, and the fourth gear is connected with the equipment body in a rotating mode; the fifth connecting rod with the fourth connecting rod symmetry sets up, the one end sliding connection of fifth connecting rod is another the sliding shaft, the other end fixed connection fifth gear of fifth connecting rod, the fifth gear rotates and connects the equipment body, the fourth gear with the fifth gear horizontal direction sets up, the fourth gear with the fifth gear all meshes the transmission in the rack, the vertical direction setting of rack is in the fourth gear with between the fifth gear, the vertical direction of tip fixed connection of rack sets firmly second sliding driving spare on the equipment body.

According to the blow molding machine convenient for mold replacement, the upper side of the equipment body is provided with the long hole arranged in the front-back direction, the long hole penetrates through the clamping groove in the left-right direction, two sides of the sliding shaft are connected with the long hole in a sliding mode, the first elastic piece is arranged between the sliding shaft and the long hole, and the first elastic piece is arranged in the long hole.

The invention aims to provide a blow molding machine convenient for replacing a mold, and the blow molding machine is characterized in that a clamping assembly is arranged on the upper end surface of the mold, after the mold is installed, the large end of an eccentric wheel is in contact with the upper end surface of a T-shaped vertical plate on one side of the mold under the action of gravity, and the dead point position of the eccentric wheel is utilized to realize clamping of the mold, limit the upper and lower positions of the mold and realize the function of fixing the mold; the moving mechanism is arranged to move the eccentric wheel, so that the eccentric wheel removes the dead point position of the die relative to the eccentric wheel, the clamping of the eccentric wheel to the die is removed, and the die is removed. In conclusion, the beneficial effects of the invention are as follows: the replacement time of the die is shortened, the function of quickly replacing the die is realized, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural view of an apparatus body articulating mold; FIG. 3 is a schematic top view of FIG. 1 (omitting the moving mechanism); FIG. 4 is a schematic view of the structure in the direction H of FIG. 1; FIG. 5 is an embodiment of a moving mechanism; fig. 6 is another embodiment of a displacement mechanism.

In the figure: 1-an equipment body, 2-a die, 3-an eccentric wheel, 11-a mounting groove, 12-a clamping groove, 13-a long hole, 14-a limiting groove, 15-a first elastic piece, 16-a second elastic piece, 21-a T-shaped vertical plate, 22-a chamfer structure, 31-a sliding shaft, 41-a first connecting rod, 42-a second connecting rod, 43-a first gear, 44-a second gear, 45-a third gear, 46-a gear shaft, 47-a sliding groove, 48-a third connecting rod, 49-a fixed seat, 50-a sliding plate, 51-a boss, 52-a first sliding driving piece, 53-a mounting seat, 54-a third elastic piece, 61-a fourth connecting rod, 62-a fifth connecting rod, 63-a fourth gear and 64-a fifth gear, 65-rack, 66-second sliding drive.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, the invention provides a blow molding machine convenient for mold replacement, which comprises a mold 2 movably connected with a device body 1, and referring to fig. 2, the invention realizes the movable connection of the mold 2 and the device body 1 by the following modes: the upper and lower direction of the equipment body 1 is provided with a T-shaped groove, the T-shaped groove comprises a mounting groove 11 and a clamping groove 12 which are vertically arranged on the equipment body 1, the clamping groove 12 extends downwards from the upper end surface of the equipment body 1, the mounting groove 11 extends downwards from the groove bottom of the clamping groove 12, the front and back dimension of the mounting groove 11 along the B direction is smaller than the front and back dimension of the clamping groove 12 along the B direction, the left and right width dimension of the mounting groove 11 and the clamping groove 12 along the A direction is the same, the middle position of the rear side surfaces of the mounting groove 11 and the clamping groove 12 is provided with a limiting groove 14 along the vertical direction, the limiting groove 14 penetrates through the mounting groove 11, the clamping groove 12 and the right end surface of the equipment body 1, the limiting groove 14 extends to the groove bottom of the mounting groove 11 from the upper end surface of the equipment body 1, namely, the height of the limiting groove 14 is equal to the sum of the height dimensions of the mounting groove 11 and the clamping groove 12, the front and back width dimension of the limiting groove 14, namely the B dimension is smaller than the front and back dimension of the mounting groove 11, the T-shaped vertical plate 21 with a T-shaped cross section is connected in the T-shaped groove in an up-down sliding mode, the T-shaped groove can limit the movement of the T-shaped vertical plate 21 in the front-back left-right direction, and the T-shaped vertical plate 21 is fixedly connected with one side of the die 2. A clamping component is arranged between the equipment body 1 and the T-shaped vertical plate 21 and is arranged in the clamping groove 12; the clamping component is connected with the equipment body 1 in a sliding way, the clamping component is in movable contact with the upper end surface of the T-shaped vertical plate 21, the clamping component comprises two eccentric wheels 3 which are symmetrically arranged at the front side and the rear side of the equipment body 1, each eccentric wheel 3 can be in movable contact with the upper end surface of the T-shaped vertical plate 21, each eccentric wheel 3 is longitudinally arranged in a clamping groove 12, namely, the axial direction of the eccentric wheel 3 is vertical to the left and right side surfaces of the clamping groove 12, the two eccentric wheels 3 are respectively eccentrically arranged at the middle parts of the two sliding shafts 31, namely, the axis of the eccentric wheel 3 is not coaxial with the axis of the sliding shaft 31, the two sliding shafts 31 are arranged in parallel, the two eccentric wheels 3 are respectively connected with the two sliding shafts 31 in a rotating way, both sides of each sliding shaft 31 are connected with the equipment body 1 in a sliding way, a first elastic piece 15, such as a spring, is arranged between each sliding shaft 31 and the equipment body 1, and the end part of each sliding shaft 31 is provided with a moving mechanism for driving the sliding shaft 31 to slide.

Among them, referring to fig. 2, the sliding connection mode of the device body 1 at both sides of the sliding shaft 31 can be: rectangular hole 13 that is the fore-and-aft direction setting is seted up to the upside of equipment body 1, rectangular hole 13 link up the lateral wall about joint groove 12 to left right direction along A, sliding shaft 31's both sides sliding connection rectangular hole 13, be equipped with first elastic component 15 between sliding shaft 31 and the rectangular hole 13, one side that equipment body 1 symmetric center was kept away from to sliding shaft 31 is equipped with the one end of first elastic component 15, first elastic component 15 sets up in rectangular hole 13, one side that equipment body 1 symmetric center was kept away from to rectangular hole 13 is connected to the other end of first elastic component 15.

Referring to fig. 3, when the first elastic member 15 is in a freely extended state, that is, the sliding shaft 31 is in an initial position, and the eccentric wheel 3 is in contact with the upper end surface of the T-shaped vertical plate 21 or the T-shaped vertical plate 21 is not installed, the front-back width dimension F of the T-shaped vertical plate 21 on the die 2 is greater than the center distance dimension E of the two sliding shafts 31.

Wherein, referring to fig. 2, the mode that eccentric wheel 3 activity contact T type riser 21 up end can be: the distance between the rotation axis of the sliding shaft 31 and the upper end surface of the T-shaped vertical plate 21 is equal to the distance between the large end of the eccentric wheel 3 and the rotation axis of the sliding shaft 31, in fig. 2, the large end of the eccentric wheel 3 refers to the end point C at which the outer circumferential edge of the eccentric wheel 3 has the largest dimension from the rotation axis of the sliding shaft 31, and the large end of the eccentric wheel 3 rotates to the lower end position of the sliding shaft 31 under the action of gravity and can be in contact with the T-shaped vertical plate 21.

Referring to fig. 2, the lower end of the T-shaped vertical plate 21 is provided with a chamfer structure 22 in movable contact with the eccentric wheels 3, the chamfer structure 22 makes the dimension of the lower end B of the T-shaped vertical plate 21 smaller than the distance dimension of the D ends of the two eccentric wheels 3, in fig. 2, the D end is the end point where the large end C of the eccentric wheels 3 is located at the lowest end position, the end of the two eccentric wheels 3 is relatively close to each other, that is, the end point where the distance dimension of the two eccentric wheels 3 is the smallest when the C end is located at the lower end position.

Through the structure, referring to fig. 2, the large end C of the eccentric wheel 3 is at the lowest end position under the action of gravity; the first elastic element 15 is in a free extension state, and at the moment, the center distance of the two sliding shafts 31 is smaller than the front and back width of the T-shaped vertical plate 21 on the die 2; when the die 2 is installed, the T-shaped vertical plate 21 on the die 2 is placed in the T-shaped groove on the device body 1, at this time, the chamfering structure 22 at the lower end of the T-shaped vertical plate 21 is located between the two eccentric wheels 3 and contacts with the two eccentric wheels 3, because the front-back dimension of the T-shaped vertical plate 21 is greater than the center distance of the two sliding shafts 31, and the chamfering structure 22 makes the lower end of the T-shaped vertical plate 21 smaller than the minimum distance dimension of the two eccentric wheels 3, when the T-shaped vertical plate 21 moves downward, the chamfering structure 22 contacts with the eccentric wheels 3 and makes the eccentric wheels 3 rotate around the sliding shafts 31, so that the large end C of the eccentric wheels 3 rotates to both sides, when the large end C of the eccentric wheels 3 is located at both sides, that is the distance dimension of the C of the two eccentric wheels 3 is the largest, the T-shaped vertical plate 21 continues to move downward, the chamfering structure 22 pushes the sliding shafts 31 to move to both sides through the eccentric wheels 3, and makes the first elastic members 15 be compressed, at this time, the circumferential surfaces of the two eccentric wheels 3 are in a contact state with the side surface of the T-shaped vertical plate 21, and the sliding shaft 31 makes the eccentric wheels 3 always contact with the side surface of the T-shaped vertical plate 21 under the elastic force of the first elastic piece 15; when the lower end of the T-shaped vertical plate 21 is in contact with the bottom of the T-shaped groove in the equipment body 1, the side surface of the T-shaped vertical plate 21 is released from contact with the eccentric wheel 3, at the moment, the sliding shaft 31 is reset under the elastic force of the first elastic piece 15, the big end of the eccentric wheel 3 is reset at the lowest end position under the action of gravity, and the circumferential surface of the big end of the eccentric wheel 3 is in contact with the upper end surface of the T-shaped vertical plate 21; the acting force of the upward movement of the T-shaped vertical plate 21 is transmitted to the sliding shaft 31 through the large end of the eccentric wheel 3, namely, the acting force for driving the eccentric wheel 3 to rotate passes through the rotation center of the eccentric wheel 3, so that the eccentric wheel 3 is positioned at a dead point position, at the moment, the eccentric wheel 3 cannot rotate, and meanwhile, the upward acting force of the T-shaped vertical plate 21 cannot drive the sliding shaft 31 to move back and forth, so that the T-shaped vertical plate 21 cannot move upward, and the position of the die 2 is limited by the eccentric wheel 3 and the device body 1 due to the fixed connection of the T-shaped vertical plate 21 and the side surface of the die 2, so that the fixing effect of the die 2 is realized.

Referring to fig. 2, preferably, a second elastic member 16, such as a spring, is installed at the bottom of the T-shaped vertical plate 21 and the bottom of the mounting groove 11, the second elastic member 16 is vertically disposed, one end of the second elastic member 16 is fixedly connected to the bottom of the mounting groove 11, the other end of the second elastic member 16 is movably contacted with the bottom of the T-shaped vertical plate 21, the T-shaped vertical plate 21 compresses the second elastic member 16 when being installed from top to bottom, after the T-shaped vertical plate 21 and the mold 2 are installed, the second elastic member 16 enables the T-shaped vertical plate 21 and the mold 2 to receive an upward acting force under the action of the elastic force, it is ensured that the upper end surface of the mold 2 is more reliably contacted with the large end of the eccentric wheel 3, and it is ensured that the mold 2 is effectively fixed.

Referring to fig. 1, 4 and 5, the moving mechanism includes a first link 41 and a second link 42, one end of the first link 41 is slidably connected to the sliding shaft 31 at the same side position thereof, the first link 41 is obliquely arranged, the other end of the first link 41 is fixedly connected to a first gear 43, the first gear 43 is rotatably connected to the apparatus body 1, the first gear 43 is engaged with and drives a second gear 44, the second gear 44 is rotatably connected to the apparatus body 1, the first gear 43 and the second gear 44 are horizontally arranged, that is, the axes of the first gear 43 and the second gear 44 are in the same horizontal plane, the second gear 44 is fixedly connected to one end of the second link 42, the second link 42 is symmetrically arranged with the first link 41, the other end of the second link 42 is slidably connected to the other sliding shaft 31, the first gear 43 and the second gear 44 are both movably engaged with a third gear 45, the third gear 45 is slidably connected to the apparatus body 1, the third gear 45 is rotationally connected with a gear shaft 46, the gear shaft 46 is slidably connected with a sliding groove 47 which is vertically arranged on the device body 1, the end part of the gear shaft 46 is fixedly connected with one end of a third connecting rod 48 which is horizontally arranged, the middle part of the third connecting rod 48 is fixedly connected with a fixed seat 49, the other end of the third connecting rod 48 is fixedly connected with a first sliding driving part 52 which is vertically arranged, for example, a hydraulic cylinder, a first sliding driving member 52 is fixedly connected with a mounting seat 53 fixedly arranged on the device body 1, a fixed seat 49 is vertically and slidably connected with the middle part of a sliding plate 50, one end of the sliding plate 50 is provided with gear teeth engaged with the second gear 44, the other end of the sliding plate 50 is provided with a boss 51 clamped with the lower end of the fixed seat 49, a third elastic member 54 is arranged between the sliding plate 50 and the mounting seat 53, such as a spring, the third elastic member 54 is vertically disposed, and both ends of the third elastic member 54 are respectively connected to the sliding plate 50 and the mounting seat 53.

Here, referring to fig. 4, the first link 41 is inclined upward and leftward from the first gear 43.

Through the above structure, referring to fig. 4, in a normal working state, the first sliding driving member 52 is in an extended state, the piston rod of the first sliding driving member 52 drives the third connecting rod 48 to be in an upper end position, the third connecting rod 48 drives the gear shaft 46 and the third gear 45 to be in an upper end position, at this time, the third gear 45 is simultaneously meshed with the first gear 43 and the second gear 44, and since the first gear 43, the second gear 44 and the third gear 45 are meshed with each other, the first gear 43, the second gear 44 and the third gear 45 are in a mutually locked state, that is, the first gear 43, the second gear 44 and the third gear 45 cannot rotate; the second gear 44 is engaged with the gear teeth at the upper end of the sliding plate 50, the third elastic element 54 is in a free extension state, and the boss 51 and the fixed seat 49 are in a non-contact state; the first connecting rod 41 and the second connecting rod 42 cannot swing, the first connecting rod 41 and the second connecting rod 42 limit the position of the sliding shaft 31, so that the large end of the eccentric wheel 3 is always in contact with the upper end surface of the T-shaped vertical plate 21, and the die 2 is fixed; when the mold 2 is disassembled, the first sliding driving member 52 is controlled to be in a retraction state, the piston rod of the first sliding driving member 52 drives the third connecting rod 48 to move downwards, the third connecting rod 48 drives the fixed seat 49 to move downwards, because the fixed seat 49 is in sliding connection with the sliding plate 50, the third elastic member 54 is arranged between the sliding plate 50 and the mounting seat 53, and the third elastic member 54 has certain strength, the third elastic member 54 limits the sliding plate 50 to move downwards, and the fixed seat 49 and the sliding plate 50 slide relatively; the third link 48 drives the gear shaft 46 and the third gear 45 to move downward, and the third gear 45 is disengaged from the first gear 43 and the second gear 44; as the third link 48 continues to move downward, the fixed seat 49 contacts the boss 51, and since the force of the downward movement of the first slide driving member 52 is greater than the elastic force of the third elastic member 54, therefore, the fixed seat 49 drives the boss 51 to move downwards, the third elastic element 54 is in a compressed state, meanwhile, the sliding plate 50 moves downwards, the gear teeth at the upper end of the sliding plate 50 drive the second gear 44 to rotate along the direction M, the second gear 44 drives the second connecting rod 42 to swing rightwards, the second connecting rod 42 drives the sliding shaft 31 connected with the sliding rod to move rightwards, the large end of the right eccentric wheel 3 is released from contacting with the upper end face of the T-shaped vertical plate 21, meanwhile, the second gear 44 drives the first gear 43 to rotate in the direction opposite to the direction M, the first gear 43 drives the first connecting rod 41 to swing leftwards, the first connecting rod 41 drives the left sliding shaft 31 to move leftwards, and the large end of the left eccentric wheel 3 is released from contact with the upper end face of the T-shaped vertical plate 21. At this time, the mold 2 is forced upward, so that the mold 2 can be taken out from the upper end of the apparatus body 1, and the mold 2 can be disassembled.

Referring to fig. 6, another embodiment of the moving mechanism can be: the moving mechanism comprises a fourth connecting rod 61 and a fifth connecting rod 62, one end of the fourth connecting rod 61 is connected to the sliding shaft 31 at the same side position of the fourth connecting rod 61 in a sliding manner, the fourth connecting rod 61 is arranged in an inclined manner, the other end of the fourth connecting rod 61 is fixedly connected with a fourth gear 63, the fourth gear 63 is rotatably connected with the equipment body 1, the fifth connecting rod 62 is symmetrically arranged with the fourth connecting rod 61, one end of the fifth connecting rod 62 is connected with the other sliding shaft 31 in a sliding manner, the other end of the fifth connecting rod 62 is fixedly connected with a fifth gear 64, the fifth gear 64 is rotatably connected with the equipment body 1, the fourth gear 63 and the fifth gear 64 are arranged in a horizontal direction, the fourth gear 63 and the fifth gear 64 are both meshed and driven on a rack 65, the left side and the right side of the rack 65 are both provided with gear teeth, the rack 65 is vertically arranged between the fourth gear 63 and the fifth gear 64, and the end of the rack 65 is fixedly connected with a second sliding driving piece 66 which is fixedly arranged on the equipment body 1 in a vertical direction.

Through the structure, in a normal working state, the second sliding driving part 66 is in a retraction state, the piston rod of the second sliding driving part 66 drives the rack 65 to be in a lower end position, at this time, the large end of the eccentric wheel 3 is in contact with the upper end face of the T-shaped vertical plate 21, the eccentric wheel 3 defines the upper and lower positions of the T-shaped vertical plate 21, and the fourth connecting rod 61 and the fifth connecting rod 62 define the position of the sliding shaft 31, so that the position of the eccentric wheel 3 in the left and right directions is defined. When the mold 2 needs to be removed, the second sliding driving member 66 is controlled to be in an extending state, the piston rod of the second sliding driving member 66 drives the rack 65 to move upwards, the rack 65 moves upwards to drive the fourth gear 63 to rotate along the P direction, the fourth gear 63 drives the fourth connecting rod 61 to swing towards the left side, meanwhile, the rack 65 enables the fifth gear 64 to rotate along the Q direction, and the fifth gear 64 drives the fifth connecting rod 62 to swing towards the right side. The fourth connecting rod 61 and the fifth connecting rod 62 drive the sliding shaft 31 to move towards two sides of the device body 1 relatively, the sliding shaft 31 drives the eccentric wheel 3 to move towards two sides of the device body 1, and the large end of the eccentric wheel 3 is released from contact with the upper end surface of the T-shaped vertical plate 21, so that the limiting effect of the eccentric wheel 3 on the T-shaped vertical plate 21 can be released, the die 2 is moved upwards, the die 2 can be taken out, and the die 2 can be disassembled.

In conclusion, the clamping assembly is arranged on the upper end face of the die, after the die is installed, the large end of the eccentric wheel is in contact with the upper end face of the T-shaped vertical plate on the side face of the die under the action of gravity, the dead point position of the eccentric wheel is utilized, clamping of the die is achieved, the upper position and the lower position of the die are limited, and the function of fixing the die is achieved; the moving mechanism is arranged to move the eccentric wheel, so that the eccentric wheel removes the dead point position of the die relative to the eccentric wheel, the clamping of the eccentric wheel to the die is removed, and the die is removed. In conclusion, the beneficial effects of the invention are as follows: the replacement time of the die is shortened, the function of quickly replacing the die is realized, and the working efficiency is improved.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A blow molding machine convenient for mold replacement is characterized by comprising a mold movably connected with an equipment body, wherein one side of the mold is fixedly connected with a T-shaped vertical plate, a clamping assembly is arranged between the equipment body and the T-shaped vertical plate, and the clamping assembly is connected with the equipment body in a sliding manner and is in movable contact with the upper end surface of the T-shaped vertical plate; the clamping assembly comprises two eccentric wheels which are symmetrically arranged on the front side and the rear side of the equipment body, each eccentric wheel is in movable contact with the upper end face of the T-shaped vertical plate, the two eccentric wheels are respectively and rotatably connected with two sliding shafts, the two sliding shafts are arranged in parallel, the eccentric wheels are eccentrically arranged in the middle of the sliding shafts, the two sides of each sliding shaft are slidably connected with the equipment body, a first elastic piece is arranged between each sliding shaft and the equipment body, and the end part of each sliding shaft is provided with a moving mechanism for driving each sliding shaft to slide;

t type groove has been seted up to the upper and lower direction of equipment body, T type groove includes that vertical direction is seted up mounting groove and joint groove on the equipment body, the joint groove by the up end downwardly extending of equipment body, every the eccentric wheel all vertically places in the joint groove, the mounting groove by the tank bottom downwardly extending in joint groove, the mounting groove with the spacing groove of vertical direction is seted up to the trailing flank intermediate position in joint groove, sliding connection about T type inslot T type riser.

2. The mold changing blow molding machine as claimed in claim 1 wherein said eccentric is longitudinally disposed in said snap-in groove with its axis oriented perpendicular to the left and right sides of said snap-in groove.

3. The blow molding machine convenient for mold exchange according to claim 1, wherein the front and rear dimensions of said mounting groove are smaller than the front and rear dimensions of said retaining groove, and the left and right width dimensions of said mounting groove and said retaining groove are the same.

4. The blow molding machine convenient for mold exchange according to claim 1, wherein said limiting groove penetrates through a right end face of said apparatus body, said limiting groove extends from an upper end face of said apparatus body to a bottom of said mounting groove, and a front-rear width dimension of said limiting groove is smaller than a front-rear width dimension of said mounting groove.

5. The blow molding machine convenient for mold exchange according to claim 1, wherein said moving mechanism comprises a first link rod and a second link rod, said first link rod is disposed obliquely, one end of said first link rod is slidably connected to said sliding shaft at the same side position as said first link rod, the other end of said first link rod is fixedly connected to a first gear rotatably connected to said machine body, said first gear is engaged with a second gear, said second gear is rotatably connected to said machine body, said first gear and said second gear are horizontally disposed, said second gear is fixedly connected to one end of said second link rod, said second link rod is symmetrically disposed with said first link rod, the other end of said second link rod is slidably connected to another sliding shaft, said first gear and said second gear are both movably engaged with a third gear, said third gear is vertically slidably connected to said machine body, the third gear is connected with a gear shaft in a rotating mode, the gear shaft is connected with the equipment body in an up-and-down sliding mode, the end portion of the gear shaft is fixedly connected with one end of a horizontally placed third connecting rod, the middle of the third connecting rod is fixedly connected with a fixed seat, the other end of the third connecting rod is fixedly connected with a first sliding driving piece arranged in the vertical direction, the first sliding driving piece is fixedly connected with a mounting seat fixedly arranged on the equipment body, the fixed seat is connected with the middle of a sliding plate in an up-and-down sliding mode, one end of the sliding plate is provided with gear teeth meshed with the second gear, the other end of the sliding plate is provided with a boss connected with the lower end of the fixed seat in a clamping mode, and a third elastic piece is arranged between the sliding plate and the mounting seat.

6. The blowing machine convenient for mold exchange according to claim 1, characterized in that said moving mechanism comprises a fourth link and a fifth link, said fourth link is disposed obliquely, one end of said fourth link is slidably connected to said sliding shaft at the same side position as said fourth link, the other end of said fourth link is fixedly connected to a fourth gear, said fourth gear is rotatably connected to said apparatus body; the fifth connecting rod with the fourth connecting rod symmetry sets up, the one end sliding connection of fifth connecting rod is another the sliding shaft, the other end fixed connection fifth gear of fifth connecting rod, the fifth gear rotates and connects the equipment body, the fourth gear with the fifth gear horizontal direction sets up, the fourth gear with the fifth gear all meshes the transmission in the rack, the vertical direction setting of rack is in the fourth gear with between the fifth gear, the vertical direction of tip fixed connection of rack sets firmly second sliding driving spare on the equipment body.

7. The blowing machine convenient to change mould of claim 1, characterized in that, the upper side of the equipment body is opened with a long hole arranged in the front-back direction, the long hole passes through the clamping groove in the left-right direction, two sides of the sliding shaft are connected with the long hole in a sliding way, a first elastic member is arranged between the sliding shaft and the long hole, and the first elastic member is arranged in the long hole.