A bellows injection molding manufacturing device and a method of using the same

Abstract

The present invention discloses a bellows injection molding manufacturing device and a method for using the same, and relates to the technical field of bellows manufacturing. The bellows injection molding manufacturing device comprises a base, on which a control mechanism is fixedly arranged, and the right side of the control mechanism is fixedly connected to an inner rod through a connecting rod. The bellows injection molding manufacturing device and the method for using the same, by adding a connecting pipe on the basis of an outer mold, and at the same time sealing both sides of the outer mold, thereby greatly avoiding the injection molding material from overflowing from both sides under the premise of ensuring the air permeability of the mold (if the injection molding outer mold is completely sealed, it is difficult for the injection molding material to be well injected into the outer mold under the influence of air pressure), and at the same time, the use of the connecting pipe forms a limiting through hole, and with the cooperation of the detection mechanism, the limiting effect is well achieved, and at the same time, the whole process uses the resistance value of the detection resistor for judgment, and does not require a series of electronic instruments for positioning, thereby ensuring product quality while reducing the manufacturing cost expenditure.

Description

Technical Field

[0001] The invention relates to the technical field of bellows manufacturing, in particular to a bellows injection molding manufacturing device and a use method thereof. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as measuring elements of pressure measuring instruments to convert pressure into displacement or force. The wall of bellows is thinner and the sensitivity is higher. The measuring range is from tens of Pa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and auxiliary spiral springs or reeds are used to increase elasticity. In the manufacturing process of bellows, according to the characteristics of the bellows, it is sometimes necessary to use injection molding for manufacturing operations.

[0003] In the prior art, only a simple tube body plus inner rod method is used for injection molding operation, and then a cutter body is used for processing to obtain a rough finished product of the bellows. This injection molding method will cause a large amount of injection molding raw materials to overflow from both sides. At the same time, it is difficult to perform a good positioning operation during processing, which makes the corrugation spacing error of the bellows large. If a series of electronic instruments are used for positioning, it will greatly increase the manufacturing cost expenditure, reduce work efficiency and bring inconvenience to users. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a bellows injection molding manufacturing device and a method for using the same, which solves the problem in the prior art that only a simple tube body plus inner rod method is used for injection molding operation, and then a cutter body is used for processing to obtain a rough finished product of the bellows. This injection molding method will cause a large amount of injection molding raw materials to overflow from both sides, and it is difficult to perform good positioning operations during processing, which results in a large error in the corrugation spacing of the bellows. If a series of electronic instruments are used for positioning, the manufacturing cost expenditure will be greatly increased.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a bellows injection molding manufacturing device, comprising a base, a control mechanism is fixedly arranged on the base, the right side of the control mechanism is fixedly connected to an inner rod through a connecting rod, a moving trolley is arranged on the base, an outer mold arranged in cooperation with the inner rod is arranged on the moving trolley, an injection molding mechanism is arranged on the control mechanism, the control mechanism is electrically connected to the injection molding mechanism, the output end of the injection molding mechanism is connected to the inner cavity of the outer mold through an output hose, the bellows injection molding manufacturing device also includes a processing mechanism, the processing mechanism includes a telescopic rod, a displacement plate is fixedly arranged at the bottom end of the telescopic rod, and a knife body and a detection mechanism are fixedly arranged on the bottom of the displacement plate from left to right in sequence;

[0008] The detection mechanism includes a detection shell, a detection spring is fixedly arranged on the top of the inner cavity of the detection shell, a moving block is fixedly connected to the bottom end of the detection spring, guide rods are penetrated on both sides of the moving block, a detection ball is inlaid on the bottom of the moving block, the bottom of the detection ball penetrates the detection shell and extends to the bottom of the detection shell, a brush is arranged on the right side of the moving block, a detection resistor arranged in coordination with the brush is arranged on the right side of the inner cavity of the detection shell, the brush is connected in series in the circuit of the detection resistor, and the control mechanism is electrically connected to the detection resistor;

[0009] The outer mold includes an upper mold and a lower mold. A connecting pipe is provided through the top of the upper mold. The effective spacing between the knife body and the detection mechanism is the same as the effective spacing between adjacent connecting pipes. The left side of the lower mold is connected with an inlet and outlet pipe. The upper mold, the lower mold and the inner rod are spliced ​​to form an injection space. The injection space is connected to the outside only through the inlet and outlet pipes and the connecting pipe.

[0010] Preferably, the base is provided with a moving track which cooperates with the moving trolley.

[0011] A method for using a bellows injection molding manufacturing device, comprising the bellows injection molding manufacturing device described above, and the specific operations are as follows:

[0012] S1. Prepare the injection molding raw materials according to production needs, and connect the injection molding raw materials to the input end of the injection molding mechanism;

[0013] S2, changing the relative position of the outer mold with respect to the inner rod by moving the mobile trolley, so that the upper mold, the lower mold and the inner rod are spliced ​​to form an injection molding space;

[0014] S3, connecting the output hose to the inlet and outlet pipes, and then controlling the injection molding mechanism to gradually add the injection molding raw materials into the injection molding space;

[0015] S4, when part of the injection molding material overflows from the connecting pipe, the injection molding mechanism is stopped, and then a qualitative operation is performed on the injection molding material in the injection molding space;

[0016] S5, separating the upper mold, the lower mold and the inner rod, so that the injection molding raw material in the injection molding space is exposed, thereby obtaining a rough product;

[0017] S6. Use a processing mechanism to process the crude product obtained in step S5. The specific operations are as follows:

[0018] S61, the opening of the limit through hole of the connecting pipe corresponding to the rough product is vertically upward, the top end of the telescopic rod is fixed on the fixing device, and the straight line where the telescopic rod is located is ensured to be perpendicular to the horizontal plane;

[0019] S62, moving the relative position of the rough product, sinking the detection ball into the second limit hole from the left, and making the cutter body correspondingly arranged just above the limit hole on the far left;

[0020] S63, changing the distance between the cutter body and the rough product by controlling the effective length of the telescopic rod, and rotating the rough product, thereby performing a processing operation under the action of the cutter body;

[0021] S64, after the processing operation is completed, the rough product is moved horizontally, so that the detection ball moves and sinks into the position of the limit hole adjacent to the left side of the current limit hole, and step S63 is repeated until there is no limit hole on the left side of the current limit hole, and then step S7 is performed. During the movement, the effective resistance value of the detection resistor is used to determine whether the detection ball is completely sunk into the target limit hole;

[0022] S7. According to production needs, the product obtained in step S64 is further processed until a final product is generated.

[0023] (III) Beneficial effects

[0024] The present invention provides a bellows injection molding manufacturing device and a method for using the same. The bellows injection molding manufacturing device and the method for using the same have the following beneficial effects: the bellows injection molding manufacturing device and the method for using the same, by adding a connecting pipe on the basis of the outer mold, and sealing both sides of the outer mold at the same time, thereby greatly avoiding the injection molding material from overflowing from both sides under the premise of ensuring the air permeability of the mold (if the injection molding outer mold is completely sealed, it is difficult for the injection molding material to be well injected into the outer mold under the influence of air pressure), and at the same time, the use of the connecting pipe forms a limiting through hole, and with the cooperation of the detection mechanism, the limiting effect is well achieved, and at the same time, the entire process uses the resistance value of the detection resistor for judgment, and does not require a series of electronic instruments for positioning, thereby ensuring product quality while reducing the manufacturing cost expenditure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the processing mechanism of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the detection mechanism of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the outer mold of the present invention;

[0029] Figure 5 is a top view of the outer mold of the present invention;

[0030] Figure 6 is a cross-sectional view of the outer mold of the present invention;

[0031] Figure 7 Schematic diagram of the position of the limiting through hole relative to the processing mechanism in step S64 of the present invention.

[0032] In the figure: 1. base; 2. control mechanism; 3. connecting rod; 4. inner rod; 5. moving trolley; 6. moving track; 7. outer mold; 71. upper mold; 72. inlet and outlet pipe; 73. connecting pipe; 74. lower mold; 8. injection molding mechanism; 9. output hose; 10. processing mechanism; 101. telescopic rod; 102. displacement plate; 103. knife body; 104. detection mechanism; 1041. detection spring; 1042. moving block; 1043. guide rod; 1044. detection shell; 1045. brush; 1046. detection resistor; 1047. detection ball. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-7The present invention provides a technical solution: a bellows injection molding manufacturing device, comprising a base 1, a movable track 6 arranged in cooperation with a movable trolley 5 is arranged on the base 1, a control mechanism 2 is fixedly arranged on the base 1, an inner rod 4 is fixedly connected to the right side of the control mechanism 2 through a connecting rod 3, a movable trolley 5 is arranged on the base 1, an outer mold 7 arranged in cooperation with the inner rod 4 is arranged on the movable trolley 5, an injection molding mechanism 8 is arranged on the control mechanism 2, the control mechanism 2 is electrically connected to the injection molding mechanism 8, and the output end of the injection molding mechanism 8 is connected to the inner cavity of the outer mold 7 through an output hose 9. The bellows injection molding manufacturing device also includes a processing mechanism 10, the processing mechanism 10 includes a telescopic rod 101, a displacement plate 102 is fixedly arranged at the bottom end of the telescopic rod 101, and a knife body 103 and a detection mechanism 104 are fixedly arranged on the bottom of the displacement plate 102 from left to right in sequence;

[0035] The detection mechanism 104 includes a detection shell 1044, a detection spring 1041 is fixedly arranged on the top of the inner cavity of the detection shell 1044, a moving block 1042 is fixedly connected to the bottom end of the detection spring 1041, guide rods 1043 are penetrated on both sides of the moving block 1042, a detection ball 1047 is inlaid on the bottom of the moving block 1042, the bottom of the detection ball 1047 penetrates the detection shell 1044 and extends to the bottom of the detection shell 1044, a brush 1045 is arranged on the right side of the moving block 1042, a detection resistor 1046 arranged in coordination with the brush 1045 is arranged on the right side of the inner cavity of the detection shell 1044, the brush 1045 is connected in series in the circuit of the detection resistor 1046, and the control mechanism 2 is electrically connected to the detection resistor 1046;

[0036] The outer mold 7 includes an upper mold 71 and a lower mold 74. A connecting pipe 73 is provided through the top of the upper mold 71. The effective spacing between the blade body 103 and the detection mechanism 104 is the same as the effective spacing between adjacent connecting pipes 73. The left side of the lower mold 74 is connected with an inlet and outlet pipe 72. After the upper mold 71, the lower mold 74 and the inner rod 4 are spliced ​​together, an injection space is formed. The injection space is connected to the outside only through the inlet and outlet pipe 72 and the connecting pipe 73.

[0037] A method for using a bellows injection molding manufacturing device, comprising the above-mentioned bellows injection molding manufacturing device, and the specific operations are as follows:

[0038] S1. Prepare the injection molding raw materials according to production needs, and connect the injection molding raw materials to the input end of the injection molding mechanism 8;

[0039] S2, changing the relative position of the outer mold 7 with respect to the inner rod 4 by moving the mobile trolley 5, so that the upper mold 71, the lower mold 74 and the inner rod 4 are spliced ​​to form an injection molding space;

[0040] S3, connecting the output hose 9 to the inlet and outlet pipe 72, and then controlling the injection molding mechanism 8 to work, gradually adding the injection molding material into the injection molding space;

[0041] S4, when part of the injection molding material overflows from the connecting pipe 73, the injection molding mechanism 8 is stopped, and then a qualitative operation is performed on the injection molding material in the injection molding space;

[0042] S5, separating the upper mold 71, the lower mold 74 and the inner rod 4, so that the injection molding material in the injection molding space is exposed, thereby obtaining a rough product;

[0043] S6. Use the processing mechanism 10 to process the crude product obtained in step S5. The specific operations are as follows:

[0044] S61, the opening of the limiting through hole of the connecting pipe 73 corresponding to the rough product is vertically upward, the top end of the telescopic rod 101 is fixed on the fixing device, and the straight line where the telescopic rod 101 is located is ensured to be perpendicular to the horizontal plane;

[0045] S62, move the relative position of the rough product, sink the detection ball 1047 into the second limiting through hole from the left, and make the cutter body 103 correspondingly arranged just above the limiting through hole on the far left;

[0046] S63, changing the distance between the cutter body 103 and the rough product by controlling the effective length of the telescopic rod 101, and rotating the rough product, so that the processing operation is performed under the action of the cutter body 103;

[0047] S64, after the processing operation is completed, the rough product is moved horizontally, so that the detection ball 1047 moves and sinks into the position of the limit hole adjacent to the left side of the current limit hole, and step S63 is repeated until there is no limit hole on the left side of the current limit hole, and then step S7 is performed. During the movement, the effective resistance value of the detection resistor 1046 is used to determine whether the detection ball 1047 is completely sunk into the target limit hole;

[0048] S7. According to production needs, the product obtained in step S64 is further processed until a final product is generated.

[0049] To sum up, the bellows injection molding manufacturing device and its use method, by adding a connecting pipe on the basis of the outer mold, closes both sides of the outer mold at the same time, thereby greatly avoiding the overflow of the injection molding material from both sides while ensuring the air permeability of the mold (if the injection molding outer mold is completely sealed, the injection molding material is difficult to be well injected into the outer mold under the influence of air pressure). At the same time, the use of the connecting pipe forms a limiting through hole, and with the cooperation of the detection mechanism, the limiting effect is well achieved. At the same time, the entire process uses the resistance value of the detection resistor for judgment, and there is no need for a series of electronic instruments for positioning, which ensures product quality while reducing manufacturing cost expenditure.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bellows injection molding manufacturing device, comprising a base (1), a control mechanism (2) fixedly arranged on the base (1), the right side of the control mechanism (2) being fixedly connected to an inner rod (4) via a connecting rod (3), a moving trolley (5) arranged on the base (1), an outer mold (7) arranged in cooperation with the inner rod (4) arranged on the moving trolley (5), an injection molding mechanism (8) arranged on the control mechanism (2), the control mechanism (2) being electrically connected to the injection molding mechanism (8), an output end of the injection molding mechanism (8) being connected to an inner cavity of the outer mold (7) via an output hose (9), characterized in that: The bellows injection molding manufacturing device also includes a processing mechanism (10), the processing mechanism (10) including a telescopic rod (101), a displacement plate (102) being fixedly disposed at the bottom end of the telescopic rod (101), and a knife body (103) and a detection mechanism (104) being fixedly disposed in sequence from left to right at the bottom of the displacement plate (102); The detection mechanism (104) comprises a detection shell (1044); a detection spring (1041) is fixedly arranged at the top of the inner cavity of the detection shell (1044); a moving block (1042) is fixedly connected to the bottom end of the detection spring (1041); guide rods (1043) are provided through both sides of the moving block (1042); a detection ball (1047) is inlaid at the bottom of the moving block (1042); the bottom of the detection ball (1047) passes through the detection shell (1044) and extends to the bottom of the detection shell (1044); a brush (1045) is arranged on the right side of the moving block (1042); a detection resistor (1046) arranged in coordination with the brush (1045) is arranged on the right side of the inner cavity of the detection shell (1044); the brush (1045) is connected in series in the circuit of the detection resistor (1046); and the control mechanism (2) is electrically connected to the detection resistor (1046); The outer mold (7) comprises an upper mold (71) and a lower mold (74); a connecting pipe (73) is provided through the top of the upper mold (71); the use of the connecting pipe (73) results in the formation of a limit through hole on the rough product; the rough product is obtained by: during production, the upper mold (71), the lower mold (74) and the inner rod (4) are separated to expose the injection molding material in the injection molding space; the effective spacing between the knife body (103) and the detection mechanism (104) is the same as the effective spacing between adjacent connecting pipes (73); the left side of the lower mold (74) is connected with an inlet and outlet pipe (72); the upper mold (71), the lower mold (74) and the inner rod (4) are spliced ​​to form an injection molding space; the injection molding space is connected to the outside only through the inlet and outlet pipe (72) and the connecting pipe (73).

2. The bellows injection molding manufacturing device according to claim 1, characterized in that: The base (1) is provided with a moving track (6) which is arranged in cooperation with the moving trolley (5).

3. A method for using a bellows injection molding manufacturing device, characterized in that: The bellows injection molding manufacturing device according to claim 1 is specifically operated as follows: S1. preparing injection molding raw materials according to production needs, and connecting the injection molding raw materials to the input end of the injection molding mechanism (8); S2, changing the relative position of the outer mold (7) with respect to the inner rod (4) by moving the movable trolley (5), so that the upper mold (71), the lower mold (74) and the inner rod (4) are spliced ​​together to form an injection molding space; S3, connecting the output hose (9) to the inlet and outlet pipe (72), and then controlling the injection molding mechanism (8) to operate, gradually adding the injection molding material into the injection molding space; S4, when part of the injection molding material overflows from the connecting pipe (73), the operation of the injection molding mechanism (8) is stopped, and then a qualitative operation is performed on the injection molding material in the injection molding space; S5, separating the upper mold (71), the lower mold (74) and the inner rod (4), thereby exposing the injection molding material in the injection molding space, thereby obtaining a rough product; S6. Using the processing mechanism (10) to process the crude product obtained in step S5, the specific operation is as follows: S61, the opening of the limiting through hole of the connecting pipe (73) corresponding to the rough product is vertically upward, the top end of the telescopic rod (101) is fixed on a fixing device, and the straight line where the telescopic rod (101) is located is ensured to be perpendicular to the horizontal plane; S62, moving the relative position of the rough product, sinking the detection ball (1047) into the second limiting through hole from the left, and making the knife body (103) correspondingly arranged just above the limiting through hole on the far left; S63, changing the distance between the cutter body (103) and the rough product by controlling the effective length of the telescopic rod (101), and rotating the rough product, thereby performing a processing operation under the action of the cutter body (103); S64, after the processing operation is completed, the rough product is moved horizontally, so that the detection ball (1047) moves and sinks into the position of the limit hole adjacent to the left side of the current limit hole, and step S63 is repeated until there is no limit hole on the left side of the current limit hole, and then step S7 is performed. During the movement, the effective resistance value of the detection resistor (1046) is used to determine whether the detection ball (1047) is completely sunk into the target limit hole; S7. According to production needs, the product obtained in step S64 is further processed until a final product is generated.

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