Glue dispensing machine with controllable glue outlet amount

Abstract

The utility model relates to the technical field of glue dispensing, in particular to a glue dispensing machine with controllable glue output amount, which comprises a glue output valve body, a glue inlet and outlet assembly and a glue barrel, the glue inlet and outlet assembly is arranged below the glue output valve body and connected with the glue output valve body, the glue barrel is arranged on the side wall of the glue output valve body and communicated with the glue inlet and outlet assembly, and a containing cavity is arranged in the glue output valve body. A containing cavity is formed in the glue outlet valve body, a piezoelectric assembly, a lever and a firing pin assembly are arranged in the containing cavity, one end of the lever is matched with the piezoelectric assembly, the other end of the lever is matched with the firing pin assembly, an adjusting rod is arranged in the glue outlet valve body, and a rod body of the adjusting rod penetrates into the containing cavity to be matched with the piezoelectric assembly. The adjusting rod can move up and down to adjust the swing amplitude of the piezoelectric assembly, so that the stroke of the piezoelectric assembly is changed, and the effect of controlling the output angle is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing, in particular to a dispensing machine with controllable glue output volume. Background Art

[0002] Fluid dispensing technology is one of the key technologies in electronic packaging. According to different packaging requirements, fluid dispensing technology can construct dispensing trajectories in the forms of dots, lines, surfaces, etc. The jet dispensing valve is the main equipment for fluid dispensing. The piezoelectric stack block is the power source for jet dispensing. The piezoelectric stack block provides micro-displacement, which is amplified by a displacement amplification mechanism and transmitted to the plunger, and the plunger drives the glue to be ejected. In the existing dispensing valve, the moving stroke of the piezoelectric stack block in the piezoelectric component is fixed, and the glue output volume of the dispensing valve each time is fixed, and it cannot be adjusted in time according to the actual use situation. Content of the Utility Model

[0003] In view of the above technical problems existing in the prior art, the utility model provides a dispensing machine with controllable glue output volume.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A dispensing machine with controllable glue output volume, including a glue output valve body, an inlet and outlet glue component and a glue bucket, characterized in that the inlet and outlet glue component is arranged below the glue output valve body and connected to the glue output valve body, the glue bucket is arranged on the side wall of the glue output valve body and communicated with the inlet and outlet glue component, a containing chamber is arranged in the glue output valve body, a piezoelectric component, a lever and a plunger component are arranged in the containing chamber, one end of the lever is matched with the piezoelectric component, and the other end is matched with the plunger component. An adjusting rod is arranged in the glue output valve body, and the rod body of the adjusting rod penetrates into the containing chamber and is matched with the piezoelectric component for adjusting the swing amplitude of the piezoelectric component.

[0006] Preferably, a first opening groove and a second opening groove are further formed on the glue output valve body. The second opening groove fastens the adjusting rod through a bolt. A set screw bushing is further sleeved on the adjusting rod, and a plurality of locking grooves are arranged on the set screw bushing, and the opening directions between adjacent locking grooves are opposite.

[0007] Preferably, the piezoelectric component includes a piezoelectric stack block and a positioning block. The positioning block is arranged above the piezoelectric stack block and connected to the piezoelectric stack block. A spherical convex arc surface is arranged at the top end of the piezoelectric stack block, and a spherical inner groove adapted thereto is formed at the bottom end of the positioning block.

[0008] Preferably, a first positioning post and a second positioning post are further arranged in the containing chamber. The first positioning post is arranged at the top end of the containing chamber and is matched with the positioning block. The second positioning post is arranged at the bottom end of the containing chamber, and the lever is arranged on the second positioning post.

[0009] Preferably, the striker assembly includes a striker body, a striker guide sleeve, a buffer spring, and a return spring. The striker body is sleeved in the striker guide sleeve and can slide up and down. The buffer spring is sleeved between the striker body and the striker guide sleeve, and the return spring is sleeved on the striker guide sleeve.

[0010] Preferably, one end of the lever is cooperated with the piezoelectric assembly. A U-shaped groove is formed at the bottom end of the piezoelectric stack block in the piezoelectric assembly, and a U-shaped block adapted thereto is formed at the top left end of the lever.

[0011] Preferably, the other end of the lever is cooperated with the striker assembly. A spherical impact platform is provided on the bottom surface of the right side of the lever for impacting the striker body, and the top surface of the return spring abuts against the bottom surface of the lever for the lever to reset.

[0012] Preferably, the glue feeding and discharging assembly is arranged below the striker assembly and cooperates with the striker assembly. The glue feeding and discharging assembly includes a glue feeding and discharging block. A glue discharging channel is arranged in the glue feeding and discharging block. The glue discharging channel is communicated with the accommodating chamber. A nozzle is further arranged on the glue feeding and discharging block. The nozzle is arranged at the outlet of the glue discharging channel. A nozzle cap is further sleeved on the nozzle. The striker body cooperates with the nozzle through the glue discharging channel.

[0013] Preferably, a glue feeding channel is further arranged in the glue feeding and discharging block. The glue outlet of the glue feeding channel is connected to the glue discharging channel and is located above the nozzle. A Luer connector is connected to the glue inlet of the glue feeding channel. The glue outlet of the glue bucket is connected to the Luer connector.

[0014] Preferably, the glue feeding and discharging assembly further includes a base. The glue feeding and discharging block is arranged on the base and is detachably connected to the base. A nozzle cap groove is arranged on the base, and the nozzle cap is arranged in the nozzle cap groove.

[0015] Advantages of the present utility model:

[0016] A glue dispenser with controllable glue output provided by the present utility model includes a glue discharging valve body, a glue feeding and discharging assembly, and a glue bucket. The glue feeding and discharging assembly is arranged below the glue discharging valve body and is connected to the glue discharging valve body. The glue bucket is arranged on the side wall of the glue discharging valve body and is communicated with the glue feeding and discharging assembly. An accommodating chamber is arranged in the glue discharging valve body. A piezoelectric assembly, a lever, and a striker assembly are arranged in the accommodating chamber. One end of the lever is cooperated with the piezoelectric assembly, and the other end is cooperated with the striker assembly. An adjusting rod is arranged in the glue discharging valve body. The rod body of the adjusting rod penetrates into the accommodating chamber and is cooperated with the piezoelectric assembly. By arranging the adjusting rod in the glue discharging valve body, the adjusting rod can move up and down to adjust the swinging amplitude of the piezoelectric assembly, thereby changing the stroke of the piezoelectric assembly and achieving the effect of controlling the glue output. Description of the drawings

[0017] Figure 1 It is a three-dimensional view of a glue dispenser with controllable glue output in the embodiment.

[0018] Figure 2A cross-sectional view of a dispensing machine with controllable glue output in the embodiment.

[0019] Figure 3 A schematic assembly diagram of the glue output valve body, piezoelectric component, lever and needle hitting component in the embodiment.

[0020] Figure 4 An exploded schematic diagram of the adjusting rod and the locking bushing in the embodiment.

[0021] Figure 5 An exploded schematic diagram of the lever and the needle hitting component in the embodiment.

[0022] Figure 6 An exploded schematic diagram of the glue inlet and outlet component in the embodiment.

[0023] Reference numerals: 1. Glue output valve body; 101. First open slot; 103. Second open slot; 104. Adjusting rod; 105. Locking bushing; 106. Locking slot; 108. Accommodating chamber; 109. First positioning post; 110. Second positioning post; 111. Piezoelectric component; 112. Piezoelectric stack block; 113. Spherical convex arc surface; 114. U-shaped slot; 115. Positioning block; 116. Spherical inner groove; 117. Lever; 118. U-shaped block; 119. Spherical impact table; 120. Needle hitting component; 121. Needle hitting body; 122. Needle hitting guide sleeve; 123. Buffer spring; 124. Return spring;

[0024] 2. Glue inlet and outlet component; 201. Glue inlet and outlet block; 202. Glue output channel; 203. Nozzle; 204. Nozzle cap; 205. Glue inlet channel; 206. Luer connector; 207. Base; 208. Nozzle cap slot;

[0025] 3. Glue bucket. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0027] As Figures 1 to 6As shown in the figure, a dispensing machine with controllable glue output includes a glue outlet valve body 1, an inlet and outlet glue assembly 2, and a glue bucket 3. The inlet and outlet glue assembly 2 is fitted at the bottom of the glue outlet valve body 1. A fixed ring with an opening is connected to the side wall of the glue outlet valve body 1. The glue bucket 3 is arranged on the fixed ring, and the glue outlet of the glue bucket 3 is communicated with the inlet and outlet glue assembly 2. An accommodation chamber 108 is formed in the glue outlet valve body 1. A piezoelectric assembly 111, a lever 117, and a plunger assembly 120 are sequentially arranged in the accommodation chamber 108 from top to bottom. The piezoelectric assembly 111 includes a piezoelectric stack block 112 and a positioning block 115. The positioning block 115 is arranged above the piezoelectric stack block 112 and is connected to the piezoelectric stack block 112. Specifically, a spherical convex arc surface 113 is provided at the top end of the piezoelectric stack block 112, and a spherical inner groove 116 is provided at the bottom end of the positioning block 115. The spherical convex arc surface 113 is adapted to the spherical inner groove 116.

[0028] Wherein, a first positioning column 109 and a second positioning column 110 are further arranged in the accommodation chamber 108. The first positioning column 109 and the second positioning column 110 are cylinders. The first positioning column 109 is arranged at the top end of the accommodation chamber 108 and is matched with the positioning block 115 in the piezoelectric assembly 111 to position the positioning block 115. Specifically, an arc-shaped groove is provided at the top of the positioning block 115, and the arc-shaped groove is adapted to the cylindrical surface of the first positioning column 109. The second positioning column 110 is arranged at the bottom end of the accommodation chamber 108, and the lever 117 is arranged on the second positioning column 110 and above the second positioning column 110. One end of the lever 117 is matched with the piezoelectric stack block 112 in the piezoelectric assembly 111. Specifically, a U-shaped groove 114 is provided at the bottom end of the piezoelectric stack block 112, and a U-shaped block 118 is provided at the top left of the lever 117. The U-shaped groove 114 is adapted to the U-shaped block 118. When the lever 117 is installed, it has a certain guiding function to ensure the installation accuracy between the piezoelectric assembly 111 and the lever 117.

[0029] The other end of the lever 117 is matched with the plunger assembly 120. The plunger assembly 120 includes a plunger body 121, a plunger guide sleeve 122, a buffer spring 123, and a return spring 124. The plunger body 121 is arranged in the plunger guide sleeve 122 and can slide up and down. The return spring 124 is sleeved on the plunger guide sleeve 122, and the buffer spring 123 is sleeved between the plunger and the plunger guide sleeve 122. The bottom end of the buffer spring 123 contacts the plunger guide sleeve 122, and the top end of the buffer spring 123 contacts the plunger body 121. When the plunger body 121 is pressed down by force, the buffer spring 123 can prevent the plunger body 121 from directly hitting the plunger guide sleeve 122 and play a buffering role. A spherical impact platform 119 is provided on the bottom surface of the right side of the lever 117. Due to the provision of the spherical impact platform 119, the direct impact between the lever 117 and the plunger body 121 is avoided, and the service life of the lever 117 is prolonged.

[0030] During use, after the piezoelectric component 111 is powered on, the piezoelectric stack block 112 in the piezoelectric component 111 will undergo slight deformation, thereby generating a small displacement. Since the lever 117 is provided at the bottom of the piezoelectric stack block 112, the piezoelectric stack block 112 drives the lever 117 to press down and strike the needle body 121 in the needle assembly 120. After the piezoelectric component 111 drives the lever 117 to strike the needle body 121, the return spring 124 in the needle assembly 120 resets the lever 117. Specifically, the bottom end of the return spring 124 contacts the needle guide sleeve 122, and the top end of the return spring 124 contacts the lever 117. After the lever 117 strikes the needle body 121, the return spring 124 pushes the lever 117 upward under the action of elastic force to achieve reset.

[0031] Furthermore, an adjusting rod 104 is provided in the glue discharging valve body 1. The rod body of the adjusting rod 104 penetrates into the accommodating chamber 108 and contacts the top of the positioning block 115. The adjusting rod 104 can move up and down to change the swing amplitude of the piezoelectric component 111, thereby changing the moving stroke of the piezoelectric component 111, achieving the effect of controlling the glue discharging amount. A first opening groove 101 and a second opening groove 103 are also formed on the glue discharging valve body 1. The vertically arranged second opening groove 103 is perpendicular to the horizontally arranged first opening groove 101. The second opening groove 103 can be closed by bolts to fix the adjusting rod 104. A set screw bushing 105 is also sleeved on the rod body of the adjusting rod 104. A plurality of locking grooves 106 are formed on the set screw bushing 105. The opening directions between adjacent locking grooves 106 are opposite. When the second opening groove 103 is closed by bolts, it can drive the set screw bushing 105 to undergo slight deformation so that the locking grooves 106 lock the adjusting rod 104, preventing the adjusting rod 104 from changing its position due to being struck during the movement of the piezoelectric component 111.

[0032] Furthermore, the glue feeding and discharging assembly 2 is arranged below the glue discharging valve body 1 and cooperates with the plunger assembly 120 in the glue discharging valve body 1 for glue feeding and discharging. The glue feeding and discharging assembly 2 includes a glue feeding and discharging block 201. A glue discharging channel 202 is provided in the glue feeding and discharging block 201. The glue discharging channel 202 communicates with the accommodating chamber 108. A nozzle 203 is provided at the glue discharging port of the glue discharging channel 202. A nozzle cap 204 is also sleeved on the nozzle 203. The plunger body 121 cooperates with the nozzle 203 through the glue discharging channel 202. When the piezoelectric assembly 111 drives the lever 117 to press down, the lever 117 will strike the plunger assembly 120, and the plunger body 121 in the plunger assembly 120 will push open the nozzle 203 to achieve glue discharging. A glue feeding channel 205 is also provided in the glue feeding and discharging block 201. A Luer connector 206 is connected to the glue feeding port of the glue feeding channel 205. The Luer connector 206 communicates with the glue discharging port of the glue bucket 3. The glue discharging port of the glue feeding channel 205 communicates with the glue discharging channel 202 and is located above the nozzle 203. The glue in the glue bucket 3 flows into the glue discharging channel 202 through the glue feeding channel 205. The glue feeding and discharging assembly 2 further includes a base 207. The base 207 is detachably connected to the glue feeding and discharging block 201. A nozzle cap groove 208 is provided on the base 207. The nozzle cap 204 is arranged in the nozzle cap groove 208.

[0033] In the description of the present invention, obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the above detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inside", "above", "below", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "arranged", "connected", and "joined" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A dispensing machine with controllable glue output, comprising a glue dispensing valve body (1), a glue inlet and outlet assembly (2) and a glue bucket (3), characterized in that, The glue inlet and outlet assembly (2) is arranged below the glue outlet valve body (1) and connected to the glue outlet valve body (1). The glue bucket (3) is arranged on the side wall of the glue outlet valve body (1) and communicated with the glue inlet and outlet assembly (2). A receiving chamber (108) is arranged in the glue outlet valve body (1). A piezoelectric assembly (111), a lever (117) and a striker assembly (120) are arranged in the receiving chamber (108). One end of the lever (117) is matched with the piezoelectric assembly (111), and the other end is matched with the striker assembly (120). An adjusting rod (104) is arranged in the glue outlet valve body (1). The rod body of the adjusting rod (104) penetrates into the receiving chamber (108) and is matched with the piezoelectric assembly (111) for adjusting the swinging amplitude of the piezoelectric assembly (111).

2. The dispensing machine with controllable dispensing amount according to claim 1, characterized in that, A first opening groove (101) and a second opening groove (103) are further formed in the glue outlet valve body (1). The second opening groove (103) fastens the adjusting rod (104) through a bolt. A set screw bushing (105) is further sleeved on the adjusting rod (104). A plurality of locking grooves (106) are arranged on the set screw bushing (105), and the opening directions between adjacent locking grooves (106) are opposite.

3. A dispensing machine with controllable glue output according to claim 1, characterized in that, The piezoelectric assembly (111) includes a piezoelectric stack block (112) and a positioning block (115). The positioning block (115) is arranged above the piezoelectric stack block (112) and connected to the piezoelectric stack block (112). A spherical convex arc surface (113) is arranged at the top end of the piezoelectric stack block (112), and a spherical inner groove (116) adapted thereto is formed at the bottom end of the positioning block (115).

4. A dispensing machine with controllable glue output according to claim 3, characterized in that, A first positioning column (109) and a second positioning column (110) are further arranged in the receiving chamber (108). The first positioning column (109) is arranged at the top end of the receiving chamber (108) and is matched with the positioning block (115). The second positioning column (110) is arranged at the bottom end of the receiving chamber (108), and the lever (117) is arranged on the second positioning column (110).

5. The dispenser with controllable glue output according to claim 3, characterized in that, The striker assembly (120) includes a striker body (121), a striker guide sleeve (122), a buffer spring (123) and a return spring (124). The striker body (121) is sleeved in the striker guide sleeve (122) and the striker body (121) can slide up and down. The buffer spring (123) is sleeved between the striker body (121) and the striker guide sleeve (122), and the return spring (124) is sleeved on the striker guide sleeve (122).

6. The dispenser with controllable glue output according to claim 5, wherein One end of the lever (117) is matched with the piezoelectric assembly (111). A U-shaped groove (114) is formed at the bottom end of the piezoelectric stack block (112) in the piezoelectric assembly (111), and a U-shaped block (118) adapted thereto is formed at the top end on the left side of the lever (117).

7. The dispenser with controllable glue output according to claim 6, characterized in that, The other end of the lever (117) is matched with the striker assembly (120). A spherical impact table (119) is arranged on the bottom surface on the right side of the lever (117) for impacting the striker body (121). The top surface of the return spring (124) abuts against the bottom surface of the lever (117) for resetting the lever (117).

8. A dispensing machine with controllable glue output according to claim 5, characterized in that, The glue inlet and outlet assembly (2) is arranged below the plunger assembly (120) and cooperates with the plunger assembly (120). The glue inlet and outlet assembly (2) includes a glue inlet and outlet block (201). A glue outlet channel (202) is provided in the glue inlet and outlet block (201). The glue outlet channel (202) communicates with the accommodation chamber (108). A nozzle (203) is further provided on the glue inlet and outlet block (201). The nozzle (203) is arranged at the outlet of the glue outlet channel (202). A nozzle cap (204) is sleeved on the nozzle (203). The plunger body (121) cooperates with the nozzle (203) through the glue outlet channel (202).

9. A dispensing machine with controllable glue output according to claim 8, characterized in that, A glue inlet channel (205) is further provided in the glue inlet and outlet block (201). The glue outlet of the glue inlet channel (205) is connected to the glue outlet channel (202) and is located above the nozzle (203). A Luer connector (206) is connected to the glue inlet of the glue inlet channel (205). The glue outlet of the glue bucket (3) is connected to the Luer connector (206).

10. The dispenser with controllable glue output according to claim 9, characterized in that, The glue inlet and outlet assembly (2) further includes a base (207). The glue inlet and outlet block (201) is arranged on the base (207) and is detachably connected to the base (207). A nozzle cap groove (208) is provided on the base (207). The nozzle cap (204) is arranged on the nozzle cap groove (208).

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