Plastic blow molding machine with easy replacement of blow molding head

Abstract

The utility model relates to the technical field of plastic blow molding machines, and discloses a plastic blow molding machine that is easy to replace a blow molding head, including a disassembly mechanism, a molding mechanism and a blow molding mechanism, wherein the molding mechanism is located below the disassembly mechanism, and the blow molding mechanism is located inside the disassembly mechanism, and the disassembly mechanism includes a gantry, a cylinder is fixedly connected to the upper surface of the gantry, a mounting block is fixedly connected to the output end of the cylinder, a spring is provided on the inner wall of the mounting block, a back plate is provided at one end of the spring, a connecting plate is fixedly connected to the bottom of the back plate, and a sliding shaft is fixedly connected to one end of the back plate. The utility model provides a blow pipe, and the user can heat the plastic material and inject it into the mold for molding, and the gas is transmitted to the blow molding head through the inner wall of the mounting block through the external device connected by the blow pipe, and then the motor is started, so that the first molding mold and the second molding mold are brought into contact under the action of the bidirectional screw.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic blow molding machines, in particular to a plastic blow molding machine which is convenient for replacing a blow molding head. Background Art

[0002] Blow molding machine is a plastic processing machine. After the liquid plastic is sprayed out, the wind force blown out by the machine is used to blow the plastic body to a certain shape of the mold cavity to make a product. This machine is called a blow molding machine. The plastic is melted and quantitatively extruded in the screw extruder, then formed through the mouth film, and then cooled by the wind ring, and then pulled by the traction machine at a certain speed, and the winder winds it into a roll.

[0003] In the prior art, since the plastic blow molding machine produces a large number of different workpieces, different blow molding heads need to be replaced during use to perform the work. The existing replacement steps are relatively complicated and require more time and manpower to complete the replacement process, which will lead to a decrease in production efficiency and an increase in production costs. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a plastic blow molding machine which is convenient for replacing the blow molding head.

[0005] The utility model is implemented by the following technical scheme: a plastic blow molding machine which is convenient for replacing a blow molding head, comprising a disassembly mechanism, a molding mechanism and a blow molding mechanism, wherein the molding mechanism is located below the disassembly mechanism, and the blow molding mechanism is located inside the disassembly mechanism;

[0006] The disassembly and assembly mechanism includes a gantry, a cylinder is fixedly connected to the upper surface of the gantry, a mounting block is fixedly connected to the output end of the cylinder, a spring is provided on the inner wall of the mounting block, a back plate is provided at one end of the spring, a connecting plate is fixedly connected to the bottom of the back plate, a sliding shaft is fixedly connected to one end of the back plate, a sleeve is slidably connected to the surface of the sliding shaft, a handle is fixedly connected to the left side of the connecting plate, a second positioning shaft is fixedly connected to the right side of the connecting plate, and a first positioning shaft is fixedly connected to the right side of the connecting plate.

[0007] As a further improvement of the above solution, the spring is interposed between the back plate and the mounting block in a compressed manner, and one end of the sleeve is fixedly connected to the inner wall of the mounting block.

[0008] As a further improvement of the above scheme, the number of the springs is set to two, and the two springs are symmetrically arranged with the mounting block as the center. The number of the connecting plates is set to two, and the two connecting plates are located at the bottom of the back plate, and the second positioning axis is located on the inner side of the first positioning axis.

[0009] Through the above technical solution, by providing a disassembly and assembly mechanism, the blow molding head can be conveniently disassembled and assembled, thereby improving the convenience and efficiency of operation.

[0010] As a further improvement of the above scheme, the forming mechanism includes a workbench, the upper surface of the workbench is fixedly connected to the bottom of the gantry, the bottom of the workbench is fixedly connected to support legs, the front of the workbench is fixedly connected to a motor, the output end of the motor is fixedly connected to a bidirectional screw rod, the surface of the bidirectional screw rod is rotatably connected to a bearing, the surface of the bidirectional screw rod is threadedly connected to a first forming mold, the surface of the bidirectional screw rod is threadedly connected to a second forming mold, and one end of the second forming mold is fixedly connected to a plug plate.

[0011] As a further improvement of the above solution, the surface of the bearing is fixedly connected to the inner wall of the workbench, and the surface of the insert plate is slidably connected to the inner wall of the first molding die.

[0012] Through the above technical solution, by setting the insert plate to match the inner wall of the first molding mold, the blow-molded workpiece can be placed on top.

[0013] As a further improvement of the above scheme, the blow molding mechanism includes a sliding block, the surface of the sliding block is slidably connected to the inner wall of the mounting block, one end of the sliding block is fixedly connected to a blow molding head, the surface of the blow molding head is provided with a first positioning groove, the surface of the blow molding head is provided with a second positioning groove, and one end of the mounting block is connected to a blow pipe.

[0014] As a further improvement of the above solution, the number of the first positioning grooves is two, and the two first positioning grooves are symmetrically arranged with the blow molding head as the center.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a blow pipe, and the user can heat the plastic material and inject it into the mold for molding. The gas is transmitted to the blow molding head through the inner wall of the mounting block through an external device connected to the blow pipe, and then the motor is started, so that the first molding mold and the second molding mold are brought into contact through the action of a bidirectional screw.

[0017] The utility model sets a cylinder, starts the cylinder, blows the molded plastic product into the shape set by the first molding die and the second molding die through blowing of the blow molding head, and then takes out the workpiece. The user can pull the handle to compress the first positioning shaft, and the sliding shaft at the other end slides on the inner wall of the sleeve, and then inserts the device into the mounting block and rotates it to a certain angle so that the first positioning shaft corresponds to the position of the first positioning groove, so that the surface of the first positioning shaft is inserted into the inner wall of the first positioning groove, and the second positioning shaft is inserted into the inner wall of the second positioning groove. The spring can rebound after being compressed, and the disassembly and assembly can be completed by providing appropriate pressure, which can simplify the replacement process of the blow molding head and meet different production needs, thereby improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of the sliding block structure of the utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the blow molding head structure of the utility model;

[0021] Figure 4 This is an exploded schematic diagram of the motor structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the second positioning shaft of the utility model;

[0023] Figure 6 It is a schematic exploded cross-sectional view of the sliding shaft structure of the utility model.

[0024] Description of main symbols:

[0025] 1. Disassembly and assembly mechanism; 101. Cylinder; 102. Gantry; 103. Mounting block; 104. Sleeve; 105. Sliding shaft; 106. Connecting plate; 107. Spring; 108. First positioning shaft; 109. Back plate; 110. Handle; 111. Second positioning shaft; 2. Molding mechanism; 201. Workbench; 202. Support leg; 203. Motor; 204. Bidirectional screw rod; 205. Bearing; 206. First molding mold; 207. Insert plate; 208. Second molding mold; 3. Blow molding mechanism; 301. Blow molding head; 302. Sliding block; 303. First positioning groove; 304. Second positioning groove; 305. Blow pipe. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] Example

[0028] Please combine Figure 1-6 A plastic blow molding machine for easily replacing a blow molding head in this embodiment includes a disassembly mechanism 1, a molding mechanism 2 and a blow molding mechanism 3, wherein the molding mechanism 2 is located below the disassembly mechanism 1, and the blow molding mechanism 3 is located inside the disassembly mechanism 1;

[0029] The disassembly and assembly mechanism 1 includes a gantry 102, the upper surface of the gantry 102 is fixedly connected to a cylinder 101, the output end of the cylinder 101 is fixedly connected to a mounting block 103, the inner wall of the mounting block 103 is provided with a spring 107, one end of the spring 107 is provided with a back plate 109, the bottom of the back plate 109 is fixedly connected to a connecting plate 106, one end of the back plate 109 is fixedly connected to a sliding shaft 105, the surface of the sliding shaft 105 is slidably connected to a sleeve 104, the left side of the connecting plate 106 is fixedly connected to a handle 110, the right side of the connecting plate 106 is fixedly connected to a second positioning shaft 111, and the right side of the connecting plate 106 is fixedly connected to a first positioning shaft 108.

[0030] The spring 107 is interposed between the back plate 109 and the mounting block 103 in a compressed manner, and one end of the sleeve 104 is fixedly connected to the inner wall of the mounting block 103 .

[0031] There are two springs 107 , which are symmetrically arranged around the mounting block 103 . There are two connecting plates 106 , which are located at the bottom of the back plate 109 . The second positioning shaft 111 is located on the inner side of the first positioning shaft 108 .

[0032] The molding mechanism 2 includes a workbench 201, the upper surface of the workbench 201 is fixedly connected to the bottom of the gantry 102, the bottom of the workbench 201 is fixedly connected to the support leg 202, the front of the workbench 201 is fixedly connected to the motor 203, the output end of the motor 203 is fixedly connected to the bidirectional screw rod 204, the surface of the bidirectional screw rod 204 is rotatably connected to the bearing 205, the surface of the bidirectional screw rod 204 is threadedly connected to the first molding mold 206, the surface of the bidirectional screw rod 204 is threadedly connected to the second molding mold 208, and one end of the second molding mold 208 is fixedly connected to the plug plate 207.

[0033] The surface of the bearing 205 is fixedly connected to the inner wall of the workbench 201 , and the surface of the insert plate 207 is slidably connected to the inner wall of the first molding die 206 .

[0034] The blow molding mechanism 3 includes a sliding block 302, the surface of the sliding block 302 is slidably connected to the inner wall of the mounting block 103, one end of the sliding block 302 is fixedly connected to the blow molding head 301, the surface of the blow molding head 301 is provided with a first positioning groove 303, the surface of the blow molding head 301 is provided with a second positioning groove 304, and one end of the mounting block 103 is connected to a blow pipe 305.

[0035] There are two first positioning grooves 303 , and the two first positioning grooves 303 are symmetrically arranged with the blow molding head 301 as the center.

[0036] The implementation principle of a plastic blow molding machine that is easy to replace the blow molding head in the embodiment of the present application is as follows: the user can heat the plastic material and inject it into the mold for molding, and transmit the gas to the blow molding head 301 through the inner wall of the mounting block 103 through the external device connected by the blow pipe 305, and then start the motor 203, so that the first molding mold 206 and the second molding mold 208 are in contact with each other through the action of the bidirectional screw rod 204, and start the cylinder 101. Through the blowing of the blow molding head 301, the molded plastic product is blown into the shape set by the first molding mold 206 and the second molding mold 208, and then the workpiece can be taken out. The user can pull the handle 11 0, so that the first positioning shaft 108 is compressed, and the sliding shaft 105 at the other end slides on the inner wall of the sleeve 104, and then the device is inserted into the mounting block 103 and rotated to a certain angle, so that the first positioning shaft 108 corresponds to the position of the first positioning groove 303, so that the surface of the first positioning shaft 108 is inserted into the inner wall of the first positioning groove 303, and the second positioning shaft 111 is inserted into the inner wall of the second positioning groove 304, and the spring 107 can rebound after being compressed, and the disassembly and assembly can be completed by providing appropriate pressure, which can simplify the replacement process of the blow molding head 301 and meet different production needs, thereby improving production efficiency and product quality.

[0037] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A plastic blow molding machine that is easy to replace the blow molding head, characterized in that: It comprises a disassembly mechanism (1), a molding mechanism (2) and a blow molding mechanism (3), wherein the molding mechanism (2) is located below the disassembly mechanism (1), and the blow molding mechanism (3) is located inside the disassembly mechanism (1); The disassembly and assembly mechanism (1) comprises a gantry (102), the upper surface of the gantry (102) is fixedly connected to a cylinder (101), the output end of the cylinder (101) is fixedly connected to a mounting block (103), the inner wall of the mounting block (103) is provided with a spring (107), one end of the spring (107) is provided with a back plate (109), the bottom of the back plate (109) is fixedly connected to a connecting plate (106), one end of the back plate (109) is fixedly connected to a sliding shaft (105), the surface of the sliding shaft (105) is slidably connected to a sleeve (104), the left side of the connecting plate (106) is fixedly connected to a handle (110), the right side of the connecting plate (106) is fixedly connected to a second positioning shaft (111), and the right side of the connecting plate (106) is fixedly connected to a first positioning shaft (108).

2. A plastic blow molding machine for easily replacing a blow molding head as claimed in claim 1, characterized in that: The spring (107) is interposed between the back plate (109) and the mounting block (103) in a compressed manner, and one end of the sleeve (104) is fixedly connected to the inner wall of the mounting block (103).

3. A plastic blow molding machine for easily replacing a blow molding head as claimed in claim 1, characterized in that: The number of the springs (107) is two, and the two springs (107) are symmetrically arranged with the mounting block (103) as the center. The number of the connecting plates (106) is two, and the two connecting plates (106) are located at the bottom of the back plate (109). The second positioning shaft (111) is located on the inner side of the first positioning shaft (108).

4. A plastic blow molding machine for easily replacing a blow molding head as claimed in claim 1, characterized in that: The molding mechanism (2) comprises a workbench (201), the upper surface of the workbench (201) is fixedly connected to the bottom of the gantry (102), the bottom of the workbench (201) is fixedly connected to a support leg (202), the front of the workbench (201) is fixedly connected to a motor (203), the output end of the motor (203) is fixedly connected to a bidirectional screw rod (204), the surface of the bidirectional screw rod (204) is rotatably connected to a bearing (205), the surface of the bidirectional screw rod (204) is threadedly connected to a first molding die (206), the surface of the bidirectional screw rod (204) is threadedly connected to a second molding die (208), and one end of the second molding die (208) is fixedly connected to a plug plate (207).

5. A plastic blow molding machine for easily replacing a blow molding head as claimed in claim 4, characterized in that: The surface of the bearing (205) is fixedly connected to the inner wall of the workbench (201), and the surface of the insert plate (207) is slidably connected to the inner wall of the first molding die (206).

6. A plastic blow molding machine for easily replacing a blow molding head as claimed in claim 1, characterized in that: The blow molding mechanism (3) comprises a sliding block (302), the surface of the sliding block (302) being slidably connected to the inner wall of the mounting block (103), one end of the sliding block (302) being fixedly connected to a blow molding head (301), the surface of the blow molding head (301) being provided with a first positioning groove (303), the surface of the blow molding head (301) being provided with a second positioning groove (304), and one end of the mounting block (103) being connected to a blow pipe (305).

7. A plastic blow molding machine for easily replacing a blow molding head as claimed in claim 6, characterized in that: The number of the first positioning grooves (303) is two, and the two first positioning grooves (303) are symmetrically arranged with the blow molding head (301) as the center.

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