阅读说明：本技术 中空吹塑机用上下可调节距离的夹持装置 (Clamping device with vertically adjustable distance for hollow blow molding machine ) 是由 徐文良 于 2021-09-02 设计创作，主要内容包括：本发明涉及中空吹塑机用上下可调节距离的夹持装置,包括固定机构和夹持机构；固定机构包括固定座和导轨；导轨的下表面的两端均设有同步带轮；夹持机构包括夹臂固定座,竖向调节机构和夹臂开合驱动机构；夹臂固定座的前侧水平设有一对夹臂,夹臂固定座内设有夹臂底座；竖向调节机构包括丝杠和第二电机；夹臂开合驱动机构包括一对气缸；一对气缸以垂直于夹臂的方向设置在夹臂底座上,气缸的底部固定在所述夹臂底座上,气缸上的活塞杆头部与夹臂的底部相固定。本发明提供的中空吹塑机用上下可调节距离的夹持装置,可实现夹臂的上下左右前后的位置调节,适配不同长度和大小的产品并进行有效夹持。(The invention relates to a clamping device with an up-down adjustable distance for a hollow blow molding machine, which comprises a fixing mechanism and a clamping mechanism; the fixing mechanism comprises a fixing seat and a guide rail; both ends of the lower surface of the guide rail are provided with synchronous belt wheels; the clamping mechanism comprises a clamping arm fixing seat, a vertical adjusting mechanism and a clamping arm opening and closing driving mechanism; a pair of clamping arms is horizontally arranged at the front side of the clamping arm fixing seat, and a clamping arm base is arranged in the clamping arm fixing seat; the vertical adjusting mechanism comprises a lead screw and a second motor; the clamping arm opening and closing driving mechanism comprises a pair of cylinders; the pair of cylinders are arranged on the clamping arm base in a direction perpendicular to the clamping arms, the bottoms of the cylinders are fixed on the clamping arm base, and the heads of the piston rods on the cylinders are fixed with the bottoms of the clamping arms. The clamping device with the vertically adjustable distance for the hollow blow molding machine can realize vertical, horizontal, front and rear position adjustment of the clamping arm, is suitable for products with different lengths and sizes and can effectively clamp the products.)

1. The clamping device with the distance adjustable up and down for the hollow blow molding machine is characterized by comprising a fixing mechanism and a clamping mechanism;

the fixing mechanism comprises a fixing seat and a guide rail; one end of the fixed seat is fixed on the upper surface of the guide rail, and the other end of the fixed seat is fixed on an external device; the two ends of the lower surface of the guide rail are respectively provided with a synchronous belt pulley, a synchronous belt is arranged between the two synchronous belt pulleys, any one synchronous belt pulley is a driving wheel, the other synchronous belt pulley is a driven wheel, the driving wheel is connected with a first motor, and the driving wheel is driven by the first motor to rotate, so that the running of the synchronous belt is realized;

the clamping mechanism comprises a clamping arm fixing seat, a vertical adjusting mechanism and a clamping arm opening and closing driving mechanism; the clamping arm fixing seat is fixed on the synchronous belt and is positioned below the synchronous belt; the clamping arm fixing seat is driven by the synchronous belt to move back and forth; a pair of clamping arms is horizontally arranged on the front side of the clamping arm fixing seat, a clamping arm base is arranged in the clamping arm fixing seat, and the pair of clamping arms is connected to the clamping arm base;

the vertical adjusting mechanism comprises a lead screw and a second motor; bearing seats are arranged at the middle position of the top and the middle position of the bottom in the clamping arm fixing seat, and the lead screw is rotatably arranged in the clamping arm fixing seat through the two bearing seats; a lifting nut matched with the screw rod is arranged in the clamping arm base, and the clamping arm base is sleeved on the screw rod through the lifting nut; the second motor is used for driving the lead screw to rotate;

the clamping arm opening and closing driving mechanism comprises a pair of air cylinders; the pair of cylinders are arranged on the clamping arm base in a direction perpendicular to the clamping arms and are arranged oppositely, the bottoms of the cylinders are fixed on the clamping arm base, and the heads of the piston rods on the cylinders are fixed with the bottoms of the clamping arms.

2. The clamping device with the vertically adjustable distance for the hollow blow molding machine according to claim 1, wherein a pair of synchronous limiting modules are further arranged on the clamping arm base between the pair of cylinders, and each pair of synchronous limiting modules comprises a gear and a rack; the gear in one group of synchronous limiting modules is arranged at the bottom of one clamping arm, the rack in one group of synchronous limiting modules is fixed at the bottom of the other clamping arm, and the gear and the rack in the same group are meshed with each other.

3. The clamping device with the vertically adjustable distance for the hollow blow molding machine according to claim 2, wherein two limiting through holes are formed on the clamping arm base corresponding to the two racks, and the two racks pass through the limiting through holes.

4. The clamping device with the vertically adjustable distance for the hollow blow molding machine according to claim 1, wherein the output end of the second motor is connected with a reduction gearbox, and the output end of the reduction gearbox is connected with a screw rod.

5. The clamping device with the vertically adjustable distance for the hollow blow molding machine according to claim 1, characterized in that guide shafts are vertically fixed on both sides of the screw rod in the clamping arm fixing seat; the position that corresponds two on the arm lock base the guiding axle is equipped with the direction through-hole, the arm lock base passes through the direction through-hole cup joints two on the guiding axle.

6. The vertically adjustable clamping device for the hollow blow molding machine according to claim 5, wherein a guide sleeve is provided in the guide through hole.

7. The clamping device with the vertically adjustable distance for the hollow blow molding machine according to claim 1, wherein the clamping arm fixing seat is provided with an induction block, and both ends of the lower surface of the guide rail are provided with stop blocks matched with the induction block.

8. The vertically adjustable clamping device for the blow molding machine according to claim 1, wherein the holder has a plurality of lightening holes.

Technical Field

The invention relates to the technical field of blow molding machines, in particular to a clamping device capable of adjusting the distance up and down for a hollow blow molding machine.

Background

Blow molding, which is mainly referred to as hollow blow molding (also called blow molding), is a method of forming a hollow article from a hot-melt parison closed in a mold by means of gas pressure, and is a plastic molding method that is developed relatively rapidly. The blow molding mold has only female mold, and compared with injection molding, the mold has lower cost, high adaptability, high plasticity and capacity of forming complicated wavy curve or shape product.

The product of blow molding machine type intracavity need use the manipulator to carry out its centre gripping and transport out in the mould after, and the manipulator upper and lower position among the prior art can not be adjusted, and when the model of product changed, the effective part of product can not be held to above-mentioned manipulator, leads to the not firm product of centre gripping to drop or crush the position of product.

In order to solve the above problems, the present applicant proposed a vertically adjustable distance clamping device for a hollow blow molding machine.

Disclosure of Invention

The invention aims to provide a clamping device with an adjustable distance up and down for a hollow blow molding machine, which can realize the position adjustment of the clamping arm up, down, left, right, front and back, adapt to products with different lengths and sizes and effectively clamp the products.

In order to achieve the aim of the invention, the clamping device with the vertically adjustable distance for the hollow blow molding machine comprises a fixing mechanism and a clamping mechanism;

the fixing mechanism comprises a fixing seat and a guide rail; one end of the fixed seat is fixed on the upper surface of the guide rail, and the other end of the fixed seat is fixed on an external device; the two ends of the lower surface of the guide rail are respectively provided with a synchronous belt pulley, a synchronous belt is arranged between the two synchronous belt pulleys, any one synchronous belt pulley is a driving wheel, the other synchronous belt pulley is a driven wheel, the driving wheel is connected with a first motor, and the driving wheel is driven by the first motor to rotate, so that the running of the synchronous belt is realized;

the clamping mechanism comprises a clamping arm fixing seat, a vertical adjusting mechanism and a clamping arm opening and closing driving mechanism; the clamping arm fixing seat is fixed on the synchronous belt and is positioned below the synchronous belt; the clamping arm fixing seat is driven by the synchronous belt to move back and forth; a pair of clamping arms is horizontally arranged on the front side of the clamping arm fixing seat, a clamping arm base is arranged in the clamping arm fixing seat, and the pair of clamping arms is connected to the clamping arm base;

the vertical adjusting mechanism comprises a lead screw and a second motor; bearing seats are arranged at the middle position of the top and the middle position of the bottom in the clamping arm fixing seat, and the lead screw is rotatably arranged in the clamping arm fixing seat through the two bearing seats; a lifting nut matched with the screw rod is arranged in the clamping arm base, and the clamping arm base is sleeved on the screw rod through the lifting nut; the second motor is used for driving the lead screw to rotate;

the clamping arm opening and closing driving mechanism comprises a pair of air cylinders; the pair of cylinders are arranged on the clamping arm base in a direction perpendicular to the clamping arms and are arranged oppositely, the bottoms of the cylinders are fixed on the clamping arm base, and the heads of the piston rods on the cylinders are fixed with the bottoms of the clamping arms.

Preferably, a pair of synchronous limiting modules is further arranged between the pair of cylinders on the clamping arm base, and each pair of synchronous limiting modules comprises a gear and a rack; the gear in one group of synchronous limiting modules is arranged at the bottom of one clamping arm, the rack in one group of synchronous limiting modules is fixed at the bottom of the other clamping arm, and the gear and the rack in the same group are meshed with each other.

Preferably, two limiting through holes are formed in the positions, corresponding to the two racks, of the clamping arm base, and the two racks penetrate through the limiting through holes.

Preferably, the output end of the second motor is connected with a reduction gearbox, and the output end of the reduction gearbox is connected with a screw rod.

Preferably, guide shafts are vertically fixed on two sides of the screw rod in the clamping arm fixing seat; the position that corresponds two on the arm lock base the guiding axle is equipped with the direction through-hole, the arm lock base passes through the direction through-hole cup joints two on the guiding axle.

Preferably, a guide sleeve is arranged in the guide through hole.

Preferably, the clamping arm fixing seat is provided with an induction block, and two ends of the lower surface of the guide rail are provided with stop blocks matched with the induction block.

Preferably, a plurality of lightening holes are formed in the fixed seat.

Compared with the prior art, the clamping device with the adjustable distance from top to bottom for the hollow blow molding machine has the following advantages:

(1) by arranging the vertical adjusting structure, the clamping arm can move in the vertical direction, so that products with different heights in the hollow blow molding machine can be effectively and accurately clamped, and the applicability of the clamping device is enhanced;

(2) the pair of synchronous limiting modules arranged on the clamping arm base can limit the movement rates of the piston rods of the two cylinders, so that the rates are consistent, and the clamping arms can effectively clamp products;

(3) simple structure, convenient operation is swift.

Drawings

FIG. 1 is a front view of a vertically adjustable distance clamping device for a hollow blow molding machine according to the present embodiment;

FIG. 2 is a plan view of the vertically adjustable distance holding device for the hollow blow molding machine of the present embodiment;

FIG. 3 is a schematic view of the internal structure of FIG. 2 in the direction B-B;

fig. 4 is a schematic view of the internal structure in the direction of a-a in fig. 1.

Detailed Description

The invention is further described below with reference to the following figures and specific examples.

As shown in fig. 1 and 2, the clamping device with adjustable distance comprises a fixing mechanism and a clamping mechanism;

the fixing mechanism comprises a fixing seat 1 and a guide rail 2; one end of the fixed seat 1 is fixed on the upper surface of the guide rail 2, and the other end of the fixed seat is fixed on an external device; the both ends of the lower surface of guide rail 2 all are equipped with synchronous pulley, are equipped with hold-in range 12 between two synchronous pulley, and in two synchronous pulley, arbitrary synchronous pulley is the action wheel, and another synchronous pulley is from the driving wheel, be connected with first motor 3 on the action wheel, realize the action wheel rotation under first motor 3's drive to realize hold-in range 12's operation. Preferably, a plurality of lightening holes are formed in the fixing seat 1, so that the weight of the fixing seat 1 is reduced, and meanwhile, materials are saved.

The clamping mechanism comprises a clamping arm fixing seat 6, a vertical adjusting mechanism and a clamping arm opening and closing driving mechanism; the clamping arm fixing seat 6 is fixed on the synchronous belt 12 and is positioned below the synchronous belt 12; under the drive of the synchronous belt 12, the clamping arm fixing seat 6 moves back and forth; the front side level of arm lock fixing base 6 is equipped with a pair of arm lock 5, be equipped with arm lock base 8 in the arm lock fixing base 6, it is a pair of arm lock 5 is connected on the arm lock base 8.

As shown in fig. 3, the vertical adjustment mechanism includes a lead screw 10 and a second motor 13; bearing seats are arranged at the middle positions of the top and the bottom in the clamping arm fixing seat 6, and the screw rod 10 is rotatably arranged in the clamping arm fixing seat 6 through the two bearing seats; a lifting nut 9 matched with a screw rod 10 is arranged in the clamping arm base 8, and the clamping arm base 8 is sleeved on the screw rod 10 through the lifting nut 9; the second motor 13 is used for driving the lead screw 10 to rotate. Preferably, the output end of the second motor 13 is connected with a reduction gearbox, and the output end of the reduction gearbox is connected with the screw rod 10; the rotating speed of the screw rod is accurately controlled through the reduction gearbox, so that the displacement of the pair of clamping arms 5 in the vertical direction is realized.

Furthermore, guide shafts 11 are vertically fixed on two sides of the screw rod 10 in the clamping arm fixing seat 6; guide through holes are formed in the positions, corresponding to the two guide shafts 11, of the clamping arm base 8, and the clamping arm base 8 is sleeved on the two guide shafts 11 through the guide through holes; so set up, can guarantee that arm lock base 8 removes in vertical direction, prevent its off tracking. Preferably, the guide sleeve is arranged in the guide through hole, so that the abrasion of the guide through hole can be reduced, and meanwhile, the guide sleeve can be replaced after being used for a period of time without reprocessing and maintaining the guide through hole.

As shown in fig. 4, the clamping arm opening and closing driving mechanism includes a pair of air cylinders 7; the pair of cylinders 7 are arranged on a clamping arm base 8 in a direction perpendicular to the clamping arm 5, the pair of cylinders 7 are arranged oppositely, the bottom of each cylinder 7 is fixed on the clamping arm base 8, and the head of a piston rod on each cylinder 7 is fixed with the bottom of the clamping arm 5; so set up, realize opening and shutting of two arm lock 5 through starting cylinder 7 to the product after the centre gripping cavity blow molding machine type intracavity shaping.

Above-mentioned device is when using, at first through starting first motor 3, realizes the operation of hold-in range 12, drives the arm lock and moves to suitable position forward, then according to the length of treating the product of centre gripping, starts second motor 13, and the lead screw rotates 10, realizes the lift of arm lock 5 to the height of the product of centre gripping is treated in the matching, then starts two cylinders 7, and two arm locks 5 are lived the product centre gripping, and hold-in range 12 is run in reverse again, transports the product out hollow blow molding machine.

Furthermore, a pair of synchronous limiting modules is further arranged between the pair of air cylinders 7 on the clamping arm base 8, and each pair of synchronous limiting modules comprises a gear 14 and a rack 15; the gear 14 in one group of synchronous limiting modules is arranged at the bottom of one clamping arm, the rack 14 in one group of synchronous limiting modules is fixed at the bottom of the other clamping arm, and the gear 14 and the rack 15 in the same group are meshed; so set up, guarantee the uniformity of a pair of arm lock 5 speed when opening and closing, be convenient for firmly grasp the product. Furthermore, two limiting through holes are formed in the positions, corresponding to the two racks 15, of the clamping arm base 8, the racks penetrate through the limiting through holes, and therefore the linearity of the moving direction of the pair of clamping arms when the clamping arms are opened and closed is guaranteed.

In order to accurately control the position of the clamping arm fixing seat 6 running on the guide rail 2, the clamping arm fixing seat 6 is provided with an induction block 4, and two ends of the lower surface of the guide rail 2 are provided with stop blocks 18 matched with the induction block 4. Can detect out the position of arm lock fixing base 6 on guide rail 2 through response piece 4, two dogs 18 can carry on spacingly to arm lock fixing base 6 simultaneously.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.