Injection molding machine with nozzle convenient to replace

Abstract

The utility model relates to the technical field of injection molding machines, in particular to an injection molding machine with a nozzle convenient to replace, which comprises an injection molding machine body, an injection molding pipe fixed at the output end of the injection molding machine body, a shell fixed on the injection molding pipe, a nozzle arranged below the injection molding pipe, four insertion blocks arranged in an annular array and arranged in the shell, four inserting grooves matched with the inserting blocks are formed in the outer wall of the nozzle, cross rods are fixed to the side walls, away from the nozzle, of the four inserting blocks, the four cross rods are sleeved with first springs, check blocks are fixed to the ends, away from the nozzle, of the four cross rods, clamping grooves are formed in the top ends of the four inserting blocks, clamping blocks are arranged in the four clamping grooves, vertical rods are fixed to the top ends of the four clamping blocks, and the vertical rods are fixed to the top ends of the vertical rods. The four vertical rods are all sleeved with second springs, a clamping sleeve is arranged above the shell, and the top ends of the four vertical rods all penetrate through the shell and are connected with the clamping sleeve; the clamping sleeve is pushed to move upwards, the nozzle is moved downwards, and the nozzle can be detached and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an injection molding machine which is convenient for replacing nozzles. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and vertical-horizontal composite types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity. The existing injection molding machine nozzle is generally provided with an external thread, and the injection molding tube of the injection molding machine is provided with an internal thread that matches the external thread on the nozzle. The nozzle needs to be installed and disassembled with the help of tools such as wrenches, which makes it inconvenient to replace the nozzle. Therefore, an injection molding machine that is easy to replace the nozzle is proposed to facilitate the replacement of the nozzle. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides an injection molding machine which is convenient for replacing nozzles.

[0004] The technical solution adopted by the utility model to solve its technical problems is an injection molding machine which is easy to replace nozzles, comprising an injection molding machine body, an injection molding tube is fixed at the output end of the injection molding machine body, a shell is fixed on the injection molding tube, a nozzle is arranged below the injection molding tube, the top end of the nozzle is inserted into the shell, four plug blocks arranged in a ring array are arranged in the shell, the outer wall of the nozzle is provided with four slots adapted to the plug blocks, the side walls of the four plug blocks away from the nozzles are fixed with cross bars, the four cross bars are sleeved with first springs, the ends of the four cross bars away from the nozzles are extended to the outside of the shell, the ends of the four cross bars away from the nozzles are fixed with stoppers, the top ends of the four plug blocks are provided with card slots, the four card slots are provided with card blocks, the top ends of the four card blocks are fixed with vertical rods, the four vertical rods are sleeved with second springs, a card sleeve is provided above the shell, and the top ends of the four vertical rods penetrate the shell and are connected with the card sleeve.

[0005] By adopting the above technical solution, the ferrule is pushed upward, and the ferrule drives the four vertical rods to move upward, and the four blocks are disengaged from the slots at the top of the four plug-in blocks. The nozzle can be removed and replaced by moving the nozzle downward. During installation, the top of the nozzle is inserted into the shell, and with the cooperation of the four first springs, the ends of the four plug-in blocks are inserted into the four slots on the outer wall of the nozzle. The ferrule is released, and the four second springs push the four blocks downward, and the bottom ends of the four blocks are inserted into the four slots, which can prevent the four plug-in blocks from being displaced, thereby facilitating the installation of the nozzle.

[0006] Specifically, a gasket is provided at the top of the nozzle.

[0007] By adopting the above technical solution and setting the gasket, the sealing between the injection tube and the nozzle can be improved.

[0008] Specifically, a guide sleeve is fixed to the bottom end of the shell, and the guide sleeve is sleeved on the nozzle.

[0009] By adopting the above technical solution, the top end of the nozzle is first passed through the guide sleeve, and the arrangement of the guide sleeve is conducive to the positioning and installation of the nozzle.

[0010] Specifically, a first heat-insulating sleeve is fixed to the outer side of the ferrule.

[0011] By adopting the above technical solution, the first heat-insulating sleeve can be held by hand to facilitate pushing of the card sleeve and avoid hand burns.

[0012] Specifically, a second heat insulation sleeve is fixed to the outer side of the nozzle.

[0013] By adopting the above technical solution, the second heat-insulating sleeve can be held by hand to facilitate taking and placing the nozzle, thereby avoiding hand burns.

[0014] Specifically, a support is fixed on the injection molding machine body, two connecting plates and two reinforcing blocks are fixed on the support, and the injection molding machine body is connected to the two connecting plates.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model discloses an injection molding machine that is convenient for replacing nozzles. The sleeve is pushed upward, and the sleeve drives four vertical rods upward. Four clamping blocks are disengaged from the clamping slots at the top of four inserting blocks. The nozzle can be removed and replaced by moving the nozzle downward. During installation, the top of the nozzle is inserted into the housing. With the cooperation of four first springs, the ends of the four inserting blocks are inserted into the four slots on the outer wall of the nozzle. The sleeve is released, and four second springs push the four clamping blocks downward. The bottom ends of the four clamping blocks are inserted into the four clamping slots, which can prevent the four inserting blocks from being displaced, thereby facilitating the installation of the nozzle.

[0017] (2) The utility model discloses an injection molding machine that facilitates nozzle replacement. The second heat-insulating sleeve is held by hand to facilitate taking and placing the nozzle, thereby avoiding hand burns. The top end of the nozzle is passed through the guide sleeve. The setting of the guide sleeve is conducive to the positioning and installation of the nozzle. The first heat-insulating sleeve is held by hand to facilitate pushing the clamping sleeve, thereby avoiding hand burns. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a cross-sectional view of the combination of the housing, the injection tube and the nozzle of the utility model;

[0021] Figure 3 For the utility model Figure 1 A magnified view of the structure in the middle.

[0022] In the figure: 1. injection molding body; 2. shell; 3. nozzle; 4. support; 5. connecting plate; 6. reinforcement block; 7. injection molding tube; 8. gasket; 9. vertical rod; 10. clamping block; 11. clamping sleeve; 12. first insulation sleeve; 13. second spring; 14. insert block; 15. cross bar; 16. first spring; 17. guide sleeve; 18. second insulation sleeve; 19. stopper. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In order to facilitate the replacement of the nozzle 3, as an embodiment of the utility model, Figure 1 , Figure 2 , Figure 3 As shown, the utility model discloses an injection molding machine for convenient nozzle replacement, comprising an injection molding machine body 1, an injection molding tube 7 is welded and fixed at the output end of the injection molding machine body 1, a shell 2 is welded and fixed on the injection molding tube 7, a nozzle 3 is arranged below the injection molding tube 7, the top end of the nozzle 3 is inserted into the shell 2, the shell 2 is provided with four insert blocks 14 arranged in a circular array, the outer wall of the nozzle 3 is provided with four slots adapted to the insert blocks 14, the side walls of the four insert blocks 14 away from the nozzle 3 are welded and fixed with cross bars 15, and the four The cross bars 15 are all sleeved with first springs 16, the four ends of the cross bars 15 away from the nozzle 3 are all extended to the outside of the shell 2, the ends of the four cross bars 15 away from the nozzle 3 are all welded and fixed with stoppers 19, the top ends of the four plug blocks 14 are all provided with slots, the four slots are all provided with blocks 10, the top ends of the four blocks 10 are all welded and fixed with vertical bars 9, the four vertical bars 9 are all sleeved with second springs 13, a sleeve 11 is provided above the shell 2, and the top ends of the four vertical bars 9 penetrate the shell 2 and are welded to the sleeve 11.

[0025] When in use, push the card sleeve 11 upward, the card sleeve 11 drives the four vertical rods 9 to move upward, the four card blocks 10 are disengaged from the card slots at the top of the four plug blocks 14, and the nozzle 3 can be removed and replaced by moving it downward. When installing, insert the top of the nozzle 3 into the shell 2, and with the cooperation of the four first springs 16, the ends of the four plug blocks 14 are inserted into the four slots on the outer wall of the nozzle 3, loosen the card sleeve 11, and the four second springs 13 push the four card blocks 10 downward. The bottom ends of the four card blocks 10 are inserted into the four card slots, which can prevent the four plug blocks 14 from being displaced, thereby facilitating the installation of the nozzle 3.

[0026] In order to improve the sealing performance, for example, Figure 2 As shown, a gasket 8 is provided at the top end of the nozzle 3 .

[0027] In order to facilitate the installation of the nozzle 3, for example, Figure 2 As shown, a guide sleeve 17 is welded and fixed to the bottom end of the housing 2 , and the guide sleeve 17 is sleeved on the nozzle 3 .

[0028] In order to facilitate pushing the card sleeve 11, exemplary, as Figure 2 As shown, a first heat-insulating sleeve 12 is fixed to the outer side of the ferrule 11 by adhesive.

[0029] In order to facilitate the placement of the nozzle 3, for example, Figure 2 As shown, a second heat-insulating sleeve 18 is fixed to the outer side of the nozzle 3 by adhesive.

[0030] A support 4 is welded and fixed on the injection molding machine body 1 , two connecting plates 5 and two reinforcing blocks 6 are welded and fixed on the support 4 , and the injection molding machine body 1 is connected to the two connecting plates 5 by welding.

[0031] When the utility model is in use, the first heat-insulating sleeve 12 is held by hand to push the clamping sleeve 11 upward, and the clamping sleeve 11 drives the four vertical rods 9 to move upward, and the four clamping blocks 10 are disengaged from the clamping slots at the top ends of the four inserting blocks 14, and the second heat-insulating sleeve 18 is held by hand to move the nozzle 3 downward, so that the nozzle 3 can be removed and replaced;

[0032] During installation, the top end of the nozzle 3 is passed through the guide sleeve 17. The guide sleeve 17 facilitates the insertion of the nozzle 3 into the housing 2. With the cooperation of the four first springs 16, the ends of the four plug blocks 14 are inserted into the four slots on the outer wall of the nozzle 3. The first heat insulation sleeve 12 is loosened, and the four second springs 13 push the four clamping blocks 10 to move downward. The bottom ends of the four clamping blocks 10 are inserted into the four card slots, which can prevent the four plug blocks 14 from being displaced, thereby facilitating the installation of the nozzle 3.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An injection molding machine that is easy to replace the nozzle, characterized in that: The invention comprises an injection molding machine body (1), an injection molding tube (7) is fixed at the output end of the injection molding machine body (1), a shell (2) is fixed on the injection molding tube (7), a nozzle (3) is arranged below the injection molding tube (7), the top end of the nozzle (3) is inserted into the shell (2), four insert blocks (14) arranged in a circular array are arranged in the shell (2), the outer wall of the nozzle (3) is provided with four slots adapted to the insert blocks (14), the side walls of the four insert blocks (14) away from the nozzle (3) are all fixed with cross bars (15), and the four cross bars (15) are all sleeved with a first elastic member. The ends of the four cross bars (15) away from the nozzle (3) extend outside the housing (2), the ends of the four cross bars (15) away from the nozzle (3) are fixed with a stopper (19), the top ends of the four plug blocks (14) are provided with a slot, the four slots are provided with a block (10), the top ends of the four blocks (10) are fixed with a vertical rod (9), the four vertical rods (9) are sleeved with a second spring (13), a sleeve (11) is provided above the housing (2), and the top ends of the four vertical rods (9) penetrate the housing (2) and are connected to the sleeve (11).

2. The injection molding machine for easy nozzle replacement according to claim 1, characterized in that: A gasket (8) is provided at the top end of the nozzle (3).

3. The injection molding machine for easy nozzle replacement according to claim 1, characterized in that: A guide sleeve (17) is fixed to the bottom end of the housing (2), and the guide sleeve (17) is sleeved on the nozzle (3).

4. The injection molding machine for easy nozzle replacement according to claim 1, characterized in that: A first heat-insulating sleeve (12) is fixed to the outer side of the ferrule (11).

5. The injection molding machine for easy nozzle replacement according to claim 1, characterized in that: A second heat insulating sleeve (18) is fixed to the outer side of the nozzle (3).

6. The injection molding machine for easy nozzle replacement according to claim 1, characterized in that: A support (4) is fixed on the injection molding machine body (1), two connecting plates (5) and two reinforcing blocks (6) are fixed on the support (4), and the injection molding machine body (1) is connected to the two connecting plates (5).

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